* [gentoo-commits] linux-patches r1527 - hardened/2.6/trunk/2.6.28
@ 2009-03-20 18:27 Gordon Malm (gengor)
0 siblings, 0 replies; only message in thread
From: Gordon Malm (gengor) @ 2009-03-20 18:27 UTC (permalink / raw
To: gentoo-commits
Author: gengor
Date: 2009-03-20 18:27:29 +0000 (Fri, 20 Mar 2009)
New Revision: 1527
Added:
hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.8-200903191958.patch
Removed:
hardened/2.6/trunk/2.6.28/1007_linux-2.6.28.8.patch
hardened/2.6/trunk/2.6.28/1910_ext4-automatically-allocate-delay-allocated-blocks-on-rename.patch
hardened/2.6/trunk/2.6.28/1911_ext4-automatically-allocate-delay-allocated-blocks-on-close.patch
hardened/2.6/trunk/2.6.28/1912_ext4-add-EXT4_IOC_ALLOC_DA_BLKS-ioctl.patch
hardened/2.6/trunk/2.6.28/1913_ext4-fix-discard-of-inode-prealloc-space-with-delayed-allocation.patch
hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.7-200903091908.patch
hardened/2.6/trunk/2.6.28/4450_pax-2.6.28.7-test19-to-test20.patch
hardened/2.6/trunk/2.6.28/4455_pax-2.6.28.8-test20-to-test23.patch
Modified:
hardened/2.6/trunk/2.6.28/0000_README
Log:
Update 2.6.28 trunk/
Modified: hardened/2.6/trunk/2.6.28/0000_README
===================================================================
--- hardened/2.6/trunk/2.6.28/0000_README 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/0000_README 2009-03-20 18:27:29 UTC (rev 1527)
@@ -3,27 +3,7 @@
Individual Patch Descriptions:
-----------------------------------------------------------------------------
-Patch: 1007_linux-2.6.28.8.patch
-From: http://www.kernel.org
-Desc: Linux 2.6.28.8
-
-Patch: 1910_ext4-automatically-allocate-delay-allocated-blocks-on-rename.patch
-From: Theodore Ts'o <tytso@mit.edu>
-Desc: ext4: Automatically allocate delay allocated blocks on rename
-
-Patch: 1911_ext4-automatically-allocate-delay-allocated-blocks-on-close.patch
-From: Theodore Ts'o <tytso@mit.edu>
-Desc: ext4: Automatically allocate delay allocated blocks on close
-
-Patch: 1912_ext4-add-EXT4_IOC_ALLOC_DA_BLKS-ioctl.patch
-From: Theodore Ts'o <tytso@mit.edu>
-Desc: ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl
-
-Patch: 1913_ext4-fix-discard-of-inode-prealloc-space-with-delayed-allocation.patch
-From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
-Desc: ext4: Fix discard of inode prealloc space with delayed allocation
-
-Patch: 4420_grsec-2.1.13-2.6.28.7-200903091908.patch
+Patch: 4420_grsec-2.1.13-2.6.28.8-200903191958.patch
From: http://www.grsecurity.net
Desc: hardened-sources base patch from upstream grsecurity
@@ -60,11 +40,3 @@
From: Gordon Malm <gengor@gentoo.org>
Kerin Millar <kerframil@gmail.com>
Desc: Disables VDSO_COMPAT operation completely
-
-Patch: 4450_pax-2.6.28.7-test19-to-test20.patch
-From: Gordon Malm <gengor@gentoo.org>
-Desc: Adds PaX changes from pax-2.6.28.7-test20
-
-Patch: 4455_pax-2.6.28.8-test20-to-test23.patch
-From: Gordon Malm <gengor@gentoo.org>
-Desc: Adds PaX changes from pax-2.6.28.8-test23
Deleted: hardened/2.6/trunk/2.6.28/1007_linux-2.6.28.8.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/1007_linux-2.6.28.8.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/1007_linux-2.6.28.8.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,4229 +0,0 @@
-diff --git a/arch/arm/mach-rpc/riscpc.c b/arch/arm/mach-rpc/riscpc.c
-index e88d417..c7fc01e 100644
---- a/arch/arm/mach-rpc/riscpc.c
-+++ b/arch/arm/mach-rpc/riscpc.c
-@@ -19,6 +19,7 @@
- #include <linux/serial_8250.h>
- #include <linux/ata_platform.h>
- #include <linux/io.h>
-+#include <linux/i2c.h>
-
- #include <asm/elf.h>
- #include <asm/mach-types.h>
-@@ -201,8 +202,13 @@ static struct platform_device *devs[] __initdata = {
- &pata_device,
- };
-
-+static struct i2c_board_info i2c_rtc = {
-+ I2C_BOARD_INFO("pcf8583", 0x50)
-+};
-+
- static int __init rpc_init(void)
- {
-+ i2c_register_board_info(0, &i2c_rtc, 1);
- return platform_add_devices(devs, ARRAY_SIZE(devs));
- }
-
-diff --git a/arch/ia64/include/asm/mmzone.h b/arch/ia64/include/asm/mmzone.h
-index 34efe88..f2ca320 100644
---- a/arch/ia64/include/asm/mmzone.h
-+++ b/arch/ia64/include/asm/mmzone.h
-@@ -31,10 +31,6 @@ static inline int pfn_to_nid(unsigned long pfn)
- #endif
- }
-
--#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
--extern int early_pfn_to_nid(unsigned long pfn);
--#endif
--
- #ifdef CONFIG_IA64_DIG /* DIG systems are small */
- # define MAX_PHYSNODE_ID 8
- # define NR_NODE_MEMBLKS (MAX_NUMNODES * 8)
-diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
-index b73bf18..3efea7d 100644
---- a/arch/ia64/mm/numa.c
-+++ b/arch/ia64/mm/numa.c
-@@ -58,7 +58,7 @@ paddr_to_nid(unsigned long paddr)
- * SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where
- * the section resides.
- */
--int early_pfn_to_nid(unsigned long pfn)
-+int __meminit __early_pfn_to_nid(unsigned long pfn)
- {
- int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec;
-
-@@ -70,7 +70,7 @@ int early_pfn_to_nid(unsigned long pfn)
- return node_memblk[i].nid;
- }
-
-- return 0;
-+ return -1;
- }
-
- #ifdef CONFIG_MEMORY_HOTPLUG
-diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
-index ac5d541..6c5b409 100644
---- a/arch/mips/include/asm/compat.h
-+++ b/arch/mips/include/asm/compat.h
-@@ -3,6 +3,8 @@
- /*
- * Architecture specific compatibility types
- */
-+#include <linux/seccomp.h>
-+#include <linux/thread_info.h>
- #include <linux/types.h>
- #include <asm/page.h>
- #include <asm/ptrace.h>
-@@ -218,4 +220,9 @@ struct compat_shmid64_ds {
- compat_ulong_t __unused2;
- };
-
-+static inline int is_compat_task(void)
-+{
-+ return test_thread_flag(TIF_32BIT);
-+}
-+
- #endif /* _ASM_COMPAT_H */
-diff --git a/arch/mips/include/asm/seccomp.h b/arch/mips/include/asm/seccomp.h
-index 36ed440..a6772e9 100644
---- a/arch/mips/include/asm/seccomp.h
-+++ b/arch/mips/include/asm/seccomp.h
-@@ -1,6 +1,5 @@
- #ifndef __ASM_SECCOMP_H
-
--#include <linux/thread_info.h>
- #include <linux/unistd.h>
-
- #define __NR_seccomp_read __NR_read
-diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
-index d811a8c..4774c2f 100644
---- a/arch/powerpc/include/asm/compat.h
-+++ b/arch/powerpc/include/asm/compat.h
-@@ -210,5 +210,10 @@ struct compat_shmid64_ds {
- compat_ulong_t __unused6;
- };
-
-+static inline int is_compat_task(void)
-+{
-+ return test_thread_flag(TIF_32BIT);
-+}
-+
- #endif /* __KERNEL__ */
- #endif /* _ASM_POWERPC_COMPAT_H */
-diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
-index 853765e..00c1d91 100644
---- a/arch/powerpc/include/asm/seccomp.h
-+++ b/arch/powerpc/include/asm/seccomp.h
-@@ -1,10 +1,6 @@
- #ifndef _ASM_POWERPC_SECCOMP_H
- #define _ASM_POWERPC_SECCOMP_H
-
--#ifdef __KERNEL__
--#include <linux/thread_info.h>
--#endif
--
- #include <linux/unistd.h>
-
- #define __NR_seccomp_read __NR_read
-diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
-index ada0692..73cb6a3 100644
---- a/arch/powerpc/kernel/align.c
-+++ b/arch/powerpc/kernel/align.c
-@@ -367,27 +367,24 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
- static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
- unsigned int flags)
- {
-- char *ptr = (char *) ¤t->thread.TS_FPR(reg);
-- int i, ret;
-+ char *ptr0 = (char *) ¤t->thread.TS_FPR(reg);
-+ char *ptr1 = (char *) ¤t->thread.TS_FPR(reg+1);
-+ int i, ret, sw = 0;
-
- if (!(flags & F))
- return 0;
- if (reg & 1)
- return 0; /* invalid form: FRS/FRT must be even */
-- if (!(flags & SW)) {
-- /* not byte-swapped - easy */
-- if (!(flags & ST))
-- ret = __copy_from_user(ptr, addr, 16);
-- else
-- ret = __copy_to_user(addr, ptr, 16);
-- } else {
-- /* each FPR value is byte-swapped separately */
-- ret = 0;
-- for (i = 0; i < 16; ++i) {
-- if (!(flags & ST))
-- ret |= __get_user(ptr[i^7], addr + i);
-- else
-- ret |= __put_user(ptr[i^7], addr + i);
-+ if (flags & SW)
-+ sw = 7;
-+ ret = 0;
-+ for (i = 0; i < 8; ++i) {
-+ if (!(flags & ST)) {
-+ ret |= __get_user(ptr0[i^sw], addr + i);
-+ ret |= __get_user(ptr1[i^sw], addr + i + 8);
-+ } else {
-+ ret |= __put_user(ptr0[i^sw], addr + i);
-+ ret |= __put_user(ptr1[i^sw], addr + i + 8);
- }
- }
- if (ret)
-diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
-index f260b58..0e70625 100644
---- a/arch/sparc/include/asm/compat.h
-+++ b/arch/sparc/include/asm/compat.h
-@@ -240,4 +240,9 @@ struct compat_shmid64_ds {
- unsigned int __unused2;
- };
-
-+static inline int is_compat_task(void)
-+{
-+ return test_thread_flag(TIF_32BIT);
-+}
-+
- #endif /* _ASM_SPARC64_COMPAT_H */
-diff --git a/arch/sparc/include/asm/seccomp.h b/arch/sparc/include/asm/seccomp.h
-index 7fcd996..adca1bc 100644
---- a/arch/sparc/include/asm/seccomp.h
-+++ b/arch/sparc/include/asm/seccomp.h
-@@ -1,11 +1,5 @@
- #ifndef _ASM_SECCOMP_H
-
--#include <linux/thread_info.h> /* already defines TIF_32BIT */
--
--#ifndef TIF_32BIT
--#error "unexpected TIF_32BIT on sparc64"
--#endif
--
- #include <linux/unistd.h>
-
- #define __NR_seccomp_read __NR_read
-diff --git a/arch/sparc64/kernel/chmc.c b/arch/sparc64/kernel/chmc.c
-index 3b9f4d6..e1a9598 100644
---- a/arch/sparc64/kernel/chmc.c
-+++ b/arch/sparc64/kernel/chmc.c
-@@ -306,6 +306,7 @@ static int jbusmc_print_dimm(int syndrome_code,
- buf[1] = '?';
- buf[2] = '?';
- buf[3] = '\0';
-+ return 0;
- }
- p = dp->controller;
- prop = &p->layout;
-diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
-index 81ccd22..356e80b 100644
---- a/arch/sparc64/kernel/traps.c
-+++ b/arch/sparc64/kernel/traps.c
-@@ -1,6 +1,6 @@
- /* arch/sparc64/kernel/traps.c
- *
-- * Copyright (C) 1995,1997,2008 David S. Miller (davem@davemloft.net)
-+ * Copyright (C) 1995,1997,2008,2009 David S. Miller (davem@davemloft.net)
- * Copyright (C) 1997,1999,2000 Jakub Jelinek (jakub@redhat.com)
- */
-
-@@ -313,6 +313,21 @@ void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsig
- return;
-
- if (regs->tstate & TSTATE_PRIV) {
-+ /* Test if this comes from uaccess places. */
-+ const struct exception_table_entry *entry;
-+
-+ entry = search_exception_tables(regs->tpc);
-+ if (entry) {
-+ /* Ouch, somebody is trying VM hole tricks on us... */
-+#ifdef DEBUG_EXCEPTIONS
-+ printk("Exception: PC<%016lx> faddr<UNKNOWN>\n", regs->tpc);
-+ printk("EX_TABLE: insn<%016lx> fixup<%016lx>\n",
-+ regs->tpc, entry->fixup);
-+#endif
-+ regs->tpc = entry->fixup;
-+ regs->tnpc = regs->tpc + 4;
-+ return;
-+ }
- printk("sun4v_data_access_exception: ADDR[%016lx] "
- "CTX[%04x] TYPE[%04x], going.\n",
- addr, ctx, type);
-diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
-index 256b00b..5a0d76d 100644
---- a/arch/x86/ia32/ia32entry.S
-+++ b/arch/x86/ia32/ia32entry.S
-@@ -418,9 +418,9 @@ ENTRY(ia32_syscall)
- orl $TS_COMPAT,TI_status(%r10)
- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
- jnz ia32_tracesys
--ia32_do_syscall:
- cmpl $(IA32_NR_syscalls-1),%eax
-- ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */
-+ ja ia32_badsys
-+ia32_do_call:
- IA32_ARG_FIXUP
- call *ia32_sys_call_table(,%rax,8) # xxx: rip relative
- ia32_sysret:
-@@ -435,7 +435,9 @@ ia32_tracesys:
- call syscall_trace_enter
- LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
- RESTORE_REST
-- jmp ia32_do_syscall
-+ cmpl $(IA32_NR_syscalls-1),%eax
-+ ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */
-+ jmp ia32_do_call
- END(ia32_syscall)
-
- ia32_badsys:
-diff --git a/arch/x86/include/asm/math_emu.h b/arch/x86/include/asm/math_emu.h
-index 5a65b10..031f626 100644
---- a/arch/x86/include/asm/math_emu.h
-+++ b/arch/x86/include/asm/math_emu.h
-@@ -1,31 +1,18 @@
- #ifndef _ASM_X86_MATH_EMU_H
- #define _ASM_X86_MATH_EMU_H
-
-+#include <asm/ptrace.h>
-+#include <asm/vm86.h>
-+
- /* This structure matches the layout of the data saved to the stack
- following a device-not-present interrupt, part of it saved
- automatically by the 80386/80486.
- */
--struct info {
-+struct math_emu_info {
- long ___orig_eip;
-- long ___ebx;
-- long ___ecx;
-- long ___edx;
-- long ___esi;
-- long ___edi;
-- long ___ebp;
-- long ___eax;
-- long ___ds;
-- long ___es;
-- long ___fs;
-- long ___orig_eax;
-- long ___eip;
-- long ___cs;
-- long ___eflags;
-- long ___esp;
-- long ___ss;
-- long ___vm86_es; /* This and the following only in vm86 mode */
-- long ___vm86_ds;
-- long ___vm86_fs;
-- long ___vm86_gs;
-+ union {
-+ struct pt_regs *regs;
-+ struct kernel_vm86_regs *vm86;
-+ };
- };
- #endif /* _ASM_X86_MATH_EMU_H */
-diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h
-index 07f1af4..105fb90 100644
---- a/arch/x86/include/asm/mmzone_32.h
-+++ b/arch/x86/include/asm/mmzone_32.h
-@@ -32,8 +32,6 @@ static inline void get_memcfg_numa(void)
- get_memcfg_numa_flat();
- }
-
--extern int early_pfn_to_nid(unsigned long pfn);
--
- extern void resume_map_numa_kva(pgd_t *pgd);
-
- #else /* !CONFIG_NUMA */
-diff --git a/arch/x86/include/asm/mmzone_64.h b/arch/x86/include/asm/mmzone_64.h
-index a5b3817..a29f48c 100644
---- a/arch/x86/include/asm/mmzone_64.h
-+++ b/arch/x86/include/asm/mmzone_64.h
-@@ -40,8 +40,6 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
- #define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \
- NODE_DATA(nid)->node_spanned_pages)
-
--extern int early_pfn_to_nid(unsigned long pfn);
--
- #ifdef CONFIG_NUMA_EMU
- #define FAKE_NODE_MIN_SIZE (64 * 1024 * 1024)
- #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
-diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
-index ba3e2ff..a660ece 100644
---- a/arch/x86/include/asm/paravirt.h
-+++ b/arch/x86/include/asm/paravirt.h
-@@ -1352,14 +1352,7 @@ static inline void arch_leave_lazy_cpu_mode(void)
- PVOP_VCALL0(pv_cpu_ops.lazy_mode.leave);
- }
-
--static inline void arch_flush_lazy_cpu_mode(void)
--{
-- if (unlikely(paravirt_get_lazy_mode() == PARAVIRT_LAZY_CPU)) {
-- arch_leave_lazy_cpu_mode();
-- arch_enter_lazy_cpu_mode();
-- }
--}
--
-+void arch_flush_lazy_cpu_mode(void);
-
- #define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
- static inline void arch_enter_lazy_mmu_mode(void)
-@@ -1372,13 +1365,7 @@ static inline void arch_leave_lazy_mmu_mode(void)
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.leave);
- }
-
--static inline void arch_flush_lazy_mmu_mode(void)
--{
-- if (unlikely(paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU)) {
-- arch_leave_lazy_mmu_mode();
-- arch_enter_lazy_mmu_mode();
-- }
--}
-+void arch_flush_lazy_mmu_mode(void);
-
- static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
- unsigned long phys, pgprot_t flags)
-diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
-index 5ca01e3..06d6f30 100644
---- a/arch/x86/include/asm/processor.h
-+++ b/arch/x86/include/asm/processor.h
-@@ -349,7 +349,7 @@ struct i387_soft_struct {
- u8 no_update;
- u8 rm;
- u8 alimit;
-- struct info *info;
-+ struct math_emu_info *info;
- u32 entry_eip;
- };
-
-diff --git a/arch/x86/include/asm/seccomp_32.h b/arch/x86/include/asm/seccomp_32.h
-index a6ad87b..b811d6f 100644
---- a/arch/x86/include/asm/seccomp_32.h
-+++ b/arch/x86/include/asm/seccomp_32.h
-@@ -1,12 +1,6 @@
- #ifndef _ASM_X86_SECCOMP_32_H
- #define _ASM_X86_SECCOMP_32_H
-
--#include <linux/thread_info.h>
--
--#ifdef TIF_32BIT
--#error "unexpected TIF_32BIT on i386"
--#endif
--
- #include <linux/unistd.h>
-
- #define __NR_seccomp_read __NR_read
-diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
-index 4171bb7..84ec1bd 100644
---- a/arch/x86/include/asm/seccomp_64.h
-+++ b/arch/x86/include/asm/seccomp_64.h
-@@ -1,14 +1,6 @@
- #ifndef _ASM_X86_SECCOMP_64_H
- #define _ASM_X86_SECCOMP_64_H
-
--#include <linux/thread_info.h>
--
--#ifdef TIF_32BIT
--#error "unexpected TIF_32BIT on x86_64"
--#else
--#define TIF_32BIT TIF_IA32
--#endif
--
- #include <linux/unistd.h>
- #include <asm/ia32_unistd.h>
-
-diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
-index 45dee28..6941aa7 100644
---- a/arch/x86/include/asm/traps.h
-+++ b/arch/x86/include/asm/traps.h
-@@ -41,7 +41,7 @@ dotraplinkage void do_int3(struct pt_regs *, long);
- dotraplinkage void do_overflow(struct pt_regs *, long);
- dotraplinkage void do_bounds(struct pt_regs *, long);
- dotraplinkage void do_invalid_op(struct pt_regs *, long);
--dotraplinkage void do_device_not_available(struct pt_regs *, long);
-+dotraplinkage void do_device_not_available(struct pt_regs);
- dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
- dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
- dotraplinkage void do_segment_not_present(struct pt_regs *, long);
-@@ -74,8 +74,8 @@ extern int kstack_depth_to_print;
-
- #ifdef CONFIG_X86_32
- void math_error(void __user *);
-+void math_emulate(struct math_emu_info *);
- unsigned long patch_espfix_desc(unsigned long, unsigned long);
--asmlinkage void math_emulate(long);
- #endif
-
- #endif /* _ASM_X86_TRAPS_H */
-diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
-index c78c048..18f41b5 100644
---- a/arch/x86/kernel/cpu/mtrr/main.c
-+++ b/arch/x86/kernel/cpu/mtrr/main.c
-@@ -1600,8 +1600,7 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
-
- /* kvm/qemu doesn't have mtrr set right, don't trim them all */
- if (!highest_pfn) {
-- WARN(!kvm_para_available(), KERN_WARNING
-- "WARNING: strange, CPU MTRRs all blank?\n");
-+ printk(KERN_INFO "CPU MTRRs all blank - virtualized system.\n");
- return 0;
- }
-
-diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
-index 067d8de..d82891c 100644
---- a/arch/x86/kernel/hpet.c
-+++ b/arch/x86/kernel/hpet.c
-@@ -267,6 +267,8 @@ static void hpet_set_mode(enum clock_event_mode mode,
- now = hpet_readl(HPET_COUNTER);
- cmp = now + (unsigned long) delta;
- cfg = hpet_readl(HPET_Tn_CFG(timer));
-+ /* Make sure we use edge triggered interrupts */
-+ cfg &= ~HPET_TN_LEVEL;
- cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
- HPET_TN_SETVAL | HPET_TN_32BIT;
- hpet_writel(cfg, HPET_Tn_CFG(timer));
-diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
-index e4c8fb6..dcba6c5 100644
---- a/arch/x86/kernel/paravirt.c
-+++ b/arch/x86/kernel/paravirt.c
-@@ -268,6 +268,30 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
- return __get_cpu_var(paravirt_lazy_mode);
- }
-
-+void arch_flush_lazy_mmu_mode(void)
-+{
-+ preempt_disable();
-+
-+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
-+ arch_leave_lazy_mmu_mode();
-+ arch_enter_lazy_mmu_mode();
-+ }
-+
-+ preempt_enable();
-+}
-+
-+void arch_flush_lazy_cpu_mode(void)
-+{
-+ preempt_disable();
-+
-+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_CPU) {
-+ arch_leave_lazy_cpu_mode();
-+ arch_enter_lazy_cpu_mode();
-+ }
-+
-+ preempt_enable();
-+}
-+
- struct pv_info pv_info = {
- .name = "bare hardware",
- .paravirt_enabled = 0,
-diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
-index 0a6d8c1..17fde52 100644
---- a/arch/x86/kernel/ptrace.c
-+++ b/arch/x86/kernel/ptrace.c
-@@ -1512,7 +1512,7 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
- #ifdef CONFIG_X86_32
- # define IS_IA32 1
- #elif defined CONFIG_IA32_EMULATION
--# define IS_IA32 test_thread_flag(TIF_IA32)
-+# define IS_IA32 is_compat_task()
- #else
- # define IS_IA32 0
- #endif
-diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
-index cc5a254..4e0afee 100644
---- a/arch/x86/kernel/reboot.c
-+++ b/arch/x86/kernel/reboot.c
-@@ -202,6 +202,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq"),
- },
- },
-+ { /* Handle problems with rebooting on Dell XPS710 */
-+ .callback = set_bios_reboot,
-+ .ident = "Dell XPS710",
-+ .matches = {
-+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-+ DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"),
-+ },
-+ },
- { }
- };
-
-diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
-index 662f1b4..70bdbb5 100644
---- a/arch/x86/kernel/traps.c
-+++ b/arch/x86/kernel/traps.c
-@@ -912,7 +912,7 @@ asmlinkage void math_state_restore(void)
- EXPORT_SYMBOL_GPL(math_state_restore);
-
- #ifndef CONFIG_MATH_EMULATION
--asmlinkage void math_emulate(long arg)
-+void math_emulate(struct math_emu_info *info)
- {
- printk(KERN_EMERG
- "math-emulation not enabled and no coprocessor found.\n");
-@@ -922,16 +922,19 @@ asmlinkage void math_emulate(long arg)
- }
- #endif /* CONFIG_MATH_EMULATION */
-
--dotraplinkage void __kprobes
--do_device_not_available(struct pt_regs *regs, long error)
-+dotraplinkage void __kprobes do_device_not_available(struct pt_regs regs)
- {
- #ifdef CONFIG_X86_32
- if (read_cr0() & X86_CR0_EM) {
-- conditional_sti(regs);
-- math_emulate(0);
-+ struct math_emu_info info = { };
-+
-+ conditional_sti(®s);
-+
-+ info.regs = ®s;
-+ math_emulate(&info);
- } else {
- math_state_restore(); /* interrupts still off */
-- conditional_sti(regs);
-+ conditional_sti(®s);
- }
- #else
- math_state_restore();
-diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
-index 254ee07..8f92321 100644
---- a/arch/x86/kernel/vmiclock_32.c
-+++ b/arch/x86/kernel/vmiclock_32.c
-@@ -283,10 +283,13 @@ void __devinit vmi_time_ap_init(void)
- #endif
-
- /** vmi clocksource */
-+static struct clocksource clocksource_vmi;
-
- static cycle_t read_real_cycles(void)
- {
-- return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL);
-+ cycle_t ret = (cycle_t)vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL);
-+ return ret >= clocksource_vmi.cycle_last ?
-+ ret : clocksource_vmi.cycle_last;
- }
-
- static struct clocksource clocksource_vmi = {
-diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
-index c7b06fe..5d87f58 100644
---- a/arch/x86/math-emu/fpu_entry.c
-+++ b/arch/x86/math-emu/fpu_entry.c
-@@ -131,7 +131,7 @@ u_char emulating = 0;
- static int valid_prefix(u_char *Byte, u_char __user ** fpu_eip,
- overrides * override);
-
--asmlinkage void math_emulate(long arg)
-+void math_emulate(struct math_emu_info *info)
- {
- u_char FPU_modrm, byte1;
- unsigned short code;
-@@ -161,7 +161,7 @@ asmlinkage void math_emulate(long arg)
- RE_ENTRANT_CHECK_ON;
- #endif /* RE_ENTRANT_CHECKING */
-
-- SETUP_DATA_AREA(arg);
-+ FPU_info = info;
-
- FPU_ORIG_EIP = FPU_EIP;
-
-@@ -659,7 +659,7 @@ static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
- }
- }
-
--void math_abort(struct info *info, unsigned int signal)
-+void math_abort(struct math_emu_info *info, unsigned int signal)
- {
- FPU_EIP = FPU_ORIG_EIP;
- current->thread.trap_no = 16;
-diff --git a/arch/x86/math-emu/fpu_proto.h b/arch/x86/math-emu/fpu_proto.h
-index aa49b6a..9779df4 100644
---- a/arch/x86/math-emu/fpu_proto.h
-+++ b/arch/x86/math-emu/fpu_proto.h
-@@ -51,8 +51,8 @@ extern void ffreep(void);
- extern void fst_i_(void);
- extern void fstp_i(void);
- /* fpu_entry.c */
--asmlinkage extern void math_emulate(long arg);
--extern void math_abort(struct info *info, unsigned int signal);
-+extern void math_emulate(struct math_emu_info *info);
-+extern void math_abort(struct math_emu_info *info, unsigned int signal);
- /* fpu_etc.c */
- extern void FPU_etc(void);
- /* fpu_tags.c */
-diff --git a/arch/x86/math-emu/fpu_system.h b/arch/x86/math-emu/fpu_system.h
-index 13488fa..50fa0ec 100644
---- a/arch/x86/math-emu/fpu_system.h
-+++ b/arch/x86/math-emu/fpu_system.h
-@@ -16,10 +16,6 @@
- #include <linux/kernel.h>
- #include <linux/mm.h>
-
--/* This sets the pointer FPU_info to point to the argument part
-- of the stack frame of math_emulate() */
--#define SETUP_DATA_AREA(arg) FPU_info = (struct info *) &arg
--
- /* s is always from a cpu register, and the cpu does bounds checking
- * during register load --> no further bounds checks needed */
- #define LDT_DESCRIPTOR(s) (((struct desc_struct *)current->mm->context.ldt)[(s) >> 3])
-@@ -38,12 +34,12 @@
- #define I387 (current->thread.xstate)
- #define FPU_info (I387->soft.info)
-
--#define FPU_CS (*(unsigned short *) &(FPU_info->___cs))
--#define FPU_SS (*(unsigned short *) &(FPU_info->___ss))
--#define FPU_DS (*(unsigned short *) &(FPU_info->___ds))
--#define FPU_EAX (FPU_info->___eax)
--#define FPU_EFLAGS (FPU_info->___eflags)
--#define FPU_EIP (FPU_info->___eip)
-+#define FPU_CS (*(unsigned short *) &(FPU_info->regs->cs))
-+#define FPU_SS (*(unsigned short *) &(FPU_info->regs->ss))
-+#define FPU_DS (*(unsigned short *) &(FPU_info->regs->ds))
-+#define FPU_EAX (FPU_info->regs->ax)
-+#define FPU_EFLAGS (FPU_info->regs->flags)
-+#define FPU_EIP (FPU_info->regs->ip)
- #define FPU_ORIG_EIP (FPU_info->___orig_eip)
-
- #define FPU_lookahead (I387->soft.lookahead)
-diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
-index d701e2b..420b3b6 100644
---- a/arch/x86/math-emu/get_address.c
-+++ b/arch/x86/math-emu/get_address.c
-@@ -29,46 +29,43 @@
- #define FPU_WRITE_BIT 0x10
-
- static int reg_offset[] = {
-- offsetof(struct info, ___eax),
-- offsetof(struct info, ___ecx),
-- offsetof(struct info, ___edx),
-- offsetof(struct info, ___ebx),
-- offsetof(struct info, ___esp),
-- offsetof(struct info, ___ebp),
-- offsetof(struct info, ___esi),
-- offsetof(struct info, ___edi)
-+ offsetof(struct pt_regs, ax),
-+ offsetof(struct pt_regs, cx),
-+ offsetof(struct pt_regs, dx),
-+ offsetof(struct pt_regs, bx),
-+ offsetof(struct pt_regs, sp),
-+ offsetof(struct pt_regs, bp),
-+ offsetof(struct pt_regs, si),
-+ offsetof(struct pt_regs, di)
- };
-
--#define REG_(x) (*(long *)(reg_offset[(x)]+(u_char *) FPU_info))
-+#define REG_(x) (*(long *)(reg_offset[(x)] + (u_char *)FPU_info->regs))
-
- static int reg_offset_vm86[] = {
-- offsetof(struct info, ___cs),
-- offsetof(struct info, ___vm86_ds),
-- offsetof(struct info, ___vm86_es),
-- offsetof(struct info, ___vm86_fs),
-- offsetof(struct info, ___vm86_gs),
-- offsetof(struct info, ___ss),
-- offsetof(struct info, ___vm86_ds)
-+ offsetof(struct pt_regs, cs),
-+ offsetof(struct kernel_vm86_regs, ds),
-+ offsetof(struct kernel_vm86_regs, es),
-+ offsetof(struct kernel_vm86_regs, fs),
-+ offsetof(struct kernel_vm86_regs, gs),
-+ offsetof(struct pt_regs, ss),
-+ offsetof(struct kernel_vm86_regs, ds)
- };
-
- #define VM86_REG_(x) (*(unsigned short *) \
-- (reg_offset_vm86[((unsigned)x)]+(u_char *) FPU_info))
--
--/* This dummy, gs is not saved on the stack. */
--#define ___GS ___ds
-+ (reg_offset_vm86[((unsigned)x)] + (u_char *)FPU_info->regs))
-
- static int reg_offset_pm[] = {
-- offsetof(struct info, ___cs),
-- offsetof(struct info, ___ds),
-- offsetof(struct info, ___es),
-- offsetof(struct info, ___fs),
-- offsetof(struct info, ___GS),
-- offsetof(struct info, ___ss),
-- offsetof(struct info, ___ds)
-+ offsetof(struct pt_regs, cs),
-+ offsetof(struct pt_regs, ds),
-+ offsetof(struct pt_regs, es),
-+ offsetof(struct pt_regs, fs),
-+ offsetof(struct pt_regs, ds), /* dummy, not saved on stack */
-+ offsetof(struct pt_regs, ss),
-+ offsetof(struct pt_regs, ds)
- };
-
- #define PM_REG_(x) (*(unsigned short *) \
-- (reg_offset_pm[((unsigned)x)]+(u_char *) FPU_info))
-+ (reg_offset_pm[((unsigned)x)] + (u_char *)FPU_info->regs))
-
- /* Decode the SIB byte. This function assumes mod != 0 */
- static int sib(int mod, unsigned long *fpu_eip)
-@@ -349,34 +346,34 @@ void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
- }
- switch (rm) {
- case 0:
-- address += FPU_info->___ebx + FPU_info->___esi;
-+ address += FPU_info->regs->bx + FPU_info->regs->si;
- break;
- case 1:
-- address += FPU_info->___ebx + FPU_info->___edi;
-+ address += FPU_info->regs->bx + FPU_info->regs->di;
- break;
- case 2:
-- address += FPU_info->___ebp + FPU_info->___esi;
-+ address += FPU_info->regs->bp + FPU_info->regs->si;
- if (addr_modes.override.segment == PREFIX_DEFAULT)
- addr_modes.override.segment = PREFIX_SS_;
- break;
- case 3:
-- address += FPU_info->___ebp + FPU_info->___edi;
-+ address += FPU_info->regs->bp + FPU_info->regs->di;
- if (addr_modes.override.segment == PREFIX_DEFAULT)
- addr_modes.override.segment = PREFIX_SS_;
- break;
- case 4:
-- address += FPU_info->___esi;
-+ address += FPU_info->regs->si;
- break;
- case 5:
-- address += FPU_info->___edi;
-+ address += FPU_info->regs->di;
- break;
- case 6:
-- address += FPU_info->___ebp;
-+ address += FPU_info->regs->bp;
- if (addr_modes.override.segment == PREFIX_DEFAULT)
- addr_modes.override.segment = PREFIX_SS_;
- break;
- case 7:
-- address += FPU_info->___ebx;
-+ address += FPU_info->regs->bx;
- break;
- }
-
-diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
-index cebcbf1..eefd445 100644
---- a/arch/x86/mm/numa_64.c
-+++ b/arch/x86/mm/numa_64.c
-@@ -145,7 +145,7 @@ int __init compute_hash_shift(struct bootnode *nodes, int numnodes,
- return shift;
- }
-
--int early_pfn_to_nid(unsigned long pfn)
-+int __meminit __early_pfn_to_nid(unsigned long pfn)
- {
- return phys_to_nid(pfn << PAGE_SHIFT);
- }
-diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
-index e9f80c7..10131fb 100644
---- a/arch/x86/oprofile/op_model_ppro.c
-+++ b/arch/x86/oprofile/op_model_ppro.c
-@@ -78,8 +78,18 @@ static void ppro_setup_ctrs(struct op_msrs const * const msrs)
- if (cpu_has_arch_perfmon) {
- union cpuid10_eax eax;
- eax.full = cpuid_eax(0xa);
-- if (counter_width < eax.split.bit_width)
-- counter_width = eax.split.bit_width;
-+
-+ /*
-+ * For Core2 (family 6, model 15), don't reset the
-+ * counter width:
-+ */
-+ if (!(eax.split.version_id == 0 &&
-+ current_cpu_data.x86 == 6 &&
-+ current_cpu_data.x86_model == 15)) {
-+
-+ if (counter_width < eax.split.bit_width)
-+ counter_width = eax.split.bit_width;
-+ }
- }
-
- /* clear all counters */
-diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
-index 5e4686d..59439c4 100644
---- a/arch/x86/xen/enlighten.c
-+++ b/arch/x86/xen/enlighten.c
-@@ -1669,6 +1669,9 @@ asmlinkage void __init xen_start_kernel(void)
- possible map and a non-dummy shared_info. */
- per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
-
-+ local_irq_disable();
-+ early_boot_irqs_off();
-+
- xen_raw_console_write("mapping kernel into physical memory\n");
- pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);
-
-diff --git a/crypto/algapi.c b/crypto/algapi.c
-index 7c41e74..56c62e2 100644
---- a/crypto/algapi.c
-+++ b/crypto/algapi.c
-@@ -149,6 +149,9 @@ static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
- if (q == alg)
- goto err;
-
-+ if (crypto_is_moribund(q))
-+ continue;
-+
- if (crypto_is_larval(q)) {
- if (!strcmp(alg->cra_driver_name, q->cra_driver_name))
- goto err;
-@@ -197,7 +200,7 @@ void crypto_alg_tested(const char *name, int err)
-
- down_write(&crypto_alg_sem);
- list_for_each_entry(q, &crypto_alg_list, cra_list) {
-- if (!crypto_is_larval(q))
-+ if (crypto_is_moribund(q) || !crypto_is_larval(q))
- continue;
-
- test = (struct crypto_larval *)q;
-@@ -210,6 +213,7 @@ void crypto_alg_tested(const char *name, int err)
- goto unlock;
-
- found:
-+ q->cra_flags |= CRYPTO_ALG_DEAD;
- alg = test->adult;
- if (err || list_empty(&alg->cra_list))
- goto complete;
-diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
-index 30f3ef2..4aa9477 100644
---- a/drivers/acpi/ec.c
-+++ b/drivers/acpi/ec.c
-@@ -759,9 +759,10 @@ acpi_ec_register_query_methods(acpi_handle handle, u32 level,
- struct acpi_namespace_node *node = handle;
- struct acpi_ec *ec = context;
- int value = 0;
-- if (sscanf(node->name.ascii, "_Q%x", &value) == 1) {
-+
-+ if (sscanf(node->name.ascii, "_Q%2x", &value) == 1)
- acpi_ec_add_query_handler(ec, value, handle, NULL, NULL);
-- }
-+
- return AE_OK;
- }
-
-diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
-index bb7d50d..ad55db1 100644
---- a/drivers/acpi/power.c
-+++ b/drivers/acpi/power.c
-@@ -151,7 +151,7 @@ static int acpi_power_get_state(acpi_handle handle, int *state)
- *state = (sta & 0x01)?ACPI_POWER_RESOURCE_STATE_ON:
- ACPI_POWER_RESOURCE_STATE_OFF;
-
-- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is %s\n",
-+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%4.4s] is %s\n",
- acpi_ut_get_node_name(handle),
- *state ? "on" : "off"));
-
-diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
-index bc6695e..b07b2ff 100644
---- a/drivers/ata/libata-core.c
-+++ b/drivers/ata/libata-core.c
-@@ -1251,14 +1251,16 @@ static u64 ata_id_n_sectors(const u16 *id)
- {
- if (ata_id_has_lba(id)) {
- if (ata_id_has_lba48(id))
-- return ata_id_u64(id, 100);
-+ return ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
- else
-- return ata_id_u32(id, 60);
-+ return ata_id_u32(id, ATA_ID_LBA_CAPACITY);
- } else {
- if (ata_id_current_chs_valid(id))
-- return ata_id_u32(id, 57);
-+ return id[ATA_ID_CUR_CYLS] * id[ATA_ID_CUR_HEADS] *
-+ id[ATA_ID_CUR_SECTORS];
- else
-- return id[1] * id[3] * id[6];
-+ return id[ATA_ID_CYLS] * id[ATA_ID_HEADS] *
-+ id[ATA_ID_SECTORS];
- }
- }
-
-diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
-index 4de18d0..97a7dbc 100644
---- a/drivers/ata/libata-eh.c
-+++ b/drivers/ata/libata-eh.c
-@@ -2366,11 +2366,14 @@ int ata_eh_reset(struct ata_link *link, int classify,
- }
-
- /* prereset() might have cleared ATA_EH_RESET. If so,
-- * bang classes and return.
-+ * bang classes, thaw and return.
- */
- if (reset && !(ehc->i.action & ATA_EH_RESET)) {
- ata_link_for_each_dev(dev, link)
- classes[dev->devno] = ATA_DEV_NONE;
-+ if ((ap->pflags & ATA_PFLAG_FROZEN) &&
-+ ata_is_host_link(link))
-+ ata_eh_thaw_port(ap);
- rc = 0;
- goto out;
- }
-diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
-index 937c9c0..10f000d 100644
---- a/drivers/atm/fore200e.c
-+++ b/drivers/atm/fore200e.c
-@@ -2519,8 +2519,8 @@ fore200e_load_and_start_fw(struct fore200e* fore200e)
- return err;
-
- sprintf(buf, "%s%s", fore200e->bus->proc_name, FW_EXT);
-- if (request_firmware(&firmware, buf, device) == 1) {
-- printk(FORE200E "missing %s firmware image\n", fore200e->bus->model_name);
-+ if ((err = request_firmware(&firmware, buf, device)) < 0) {
-+ printk(FORE200E "problem loading firmware image %s\n", fore200e->bus->model_name);
- return err;
- }
-
-diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
-index 93f3690..8e54c1f 100644
---- a/drivers/block/aoe/aoe.h
-+++ b/drivers/block/aoe/aoe.h
-@@ -18,6 +18,7 @@
- enum {
- AOECMD_ATA,
- AOECMD_CFG,
-+ AOECMD_VEND_MIN = 0xf0,
-
- AOEFL_RSP = (1<<3),
- AOEFL_ERR = (1<<2),
-diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
-index 9157d64..b67629a 100644
---- a/drivers/block/aoe/aoenet.c
-+++ b/drivers/block/aoe/aoenet.c
-@@ -153,6 +153,8 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
- aoecmd_cfg_rsp(skb);
- break;
- default:
-+ if (h->cmd >= AOECMD_VEND_MIN)
-+ break; /* don't complain about vendor commands */
- printk(KERN_INFO "aoe: unknown cmd %d\n", h->cmd);
- }
- exit:
-diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
-index 2d19f0c..676278e 100644
---- a/drivers/block/xen-blkfront.c
-+++ b/drivers/block/xen-blkfront.c
-@@ -40,6 +40,7 @@
- #include <linux/hdreg.h>
- #include <linux/cdrom.h>
- #include <linux/module.h>
-+#include <linux/scatterlist.h>
-
- #include <xen/xenbus.h>
- #include <xen/grant_table.h>
-@@ -82,6 +83,7 @@ struct blkfront_info
- enum blkif_state connected;
- int ring_ref;
- struct blkif_front_ring ring;
-+ struct scatterlist sg[BLKIF_MAX_SEGMENTS_PER_REQUEST];
- unsigned int evtchn, irq;
- struct request_queue *rq;
- struct work_struct work;
-@@ -204,12 +206,11 @@ static int blkif_queue_request(struct request *req)
- struct blkfront_info *info = req->rq_disk->private_data;
- unsigned long buffer_mfn;
- struct blkif_request *ring_req;
-- struct req_iterator iter;
-- struct bio_vec *bvec;
- unsigned long id;
- unsigned int fsect, lsect;
-- int ref;
-+ int i, ref;
- grant_ref_t gref_head;
-+ struct scatterlist *sg;
-
- if (unlikely(info->connected != BLKIF_STATE_CONNECTED))
- return 1;
-@@ -238,12 +239,13 @@ static int blkif_queue_request(struct request *req)
- if (blk_barrier_rq(req))
- ring_req->operation = BLKIF_OP_WRITE_BARRIER;
-
-- ring_req->nr_segments = 0;
-- rq_for_each_segment(bvec, req, iter) {
-- BUG_ON(ring_req->nr_segments == BLKIF_MAX_SEGMENTS_PER_REQUEST);
-- buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page));
-- fsect = bvec->bv_offset >> 9;
-- lsect = fsect + (bvec->bv_len >> 9) - 1;
-+ ring_req->nr_segments = blk_rq_map_sg(req->q, req, info->sg);
-+ BUG_ON(ring_req->nr_segments > BLKIF_MAX_SEGMENTS_PER_REQUEST);
-+
-+ for_each_sg(info->sg, sg, ring_req->nr_segments, i) {
-+ buffer_mfn = pfn_to_mfn(page_to_pfn(sg_page(sg)));
-+ fsect = sg->offset >> 9;
-+ lsect = fsect + (sg->length >> 9) - 1;
- /* install a grant reference. */
- ref = gnttab_claim_grant_reference(&gref_head);
- BUG_ON(ref == -ENOSPC);
-@@ -254,16 +256,12 @@ static int blkif_queue_request(struct request *req)
- buffer_mfn,
- rq_data_dir(req) );
-
-- info->shadow[id].frame[ring_req->nr_segments] =
-- mfn_to_pfn(buffer_mfn);
--
-- ring_req->seg[ring_req->nr_segments] =
-+ info->shadow[id].frame[i] = mfn_to_pfn(buffer_mfn);
-+ ring_req->seg[i] =
- (struct blkif_request_segment) {
- .gref = ref,
- .first_sect = fsect,
- .last_sect = lsect };
--
-- ring_req->nr_segments++;
- }
-
- info->ring.req_prod_pvt++;
-@@ -628,6 +626,8 @@ static int setup_blkring(struct xenbus_device *dev,
- SHARED_RING_INIT(sring);
- FRONT_RING_INIT(&info->ring, sring, PAGE_SIZE);
-
-+ sg_init_table(info->sg, BLKIF_MAX_SEGMENTS_PER_REQUEST);
-+
- err = xenbus_grant_ring(dev, virt_to_mfn(info->ring.sring));
- if (err < 0) {
- free_page((unsigned long)sring);
-diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
-index c771418..4373adb 100644
---- a/drivers/char/agp/intel-agp.c
-+++ b/drivers/char/agp/intel-agp.c
-@@ -633,13 +633,15 @@ static void intel_i830_init_gtt_entries(void)
- break;
- }
- }
-- if (gtt_entries > 0)
-+ if (gtt_entries > 0) {
- dev_info(&agp_bridge->dev->dev, "detected %dK %s memory\n",
- gtt_entries / KB(1), local ? "local" : "stolen");
-- else
-+ gtt_entries /= KB(4);
-+ } else {
- dev_info(&agp_bridge->dev->dev,
- "no pre-allocated video memory detected\n");
-- gtt_entries /= KB(4);
-+ gtt_entries = 0;
-+ }
-
- intel_private.gtt_entries = gtt_entries;
- }
-diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
-index 40df3e1..fab7ca2 100644
---- a/drivers/hid/hid-core.c
-+++ b/drivers/hid/hid-core.c
-@@ -1302,6 +1302,12 @@ static const struct hid_device_id hid_blacklist[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
- { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
- { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
-+ { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
-+ { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
-+ { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
-+ { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
-+ { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
-+ { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
-
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 0x030c) },
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
-@@ -1529,10 +1535,6 @@ static const struct hid_device_id hid_ignore_list[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD3) },
- { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) },
- { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) },
-- { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
-- { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
-- { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
-- { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
- { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
- { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
- { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
-@@ -1543,8 +1545,6 @@ static const struct hid_device_id hid_ignore_list[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
- { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
- { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
-- { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
-- { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
- { }
- };
-
-diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
-index 67067e9..71556e6 100644
---- a/drivers/hwmon/f71882fg.c
-+++ b/drivers/hwmon/f71882fg.c
-@@ -837,7 +837,7 @@ static int __init f71882fg_find(int sioaddr, unsigned short *address)
-
- devid = superio_inw(sioaddr, SIO_REG_MANID);
- if (devid != SIO_FINTEK_ID) {
-- printk(KERN_INFO DRVNAME ": Not a Fintek device\n");
-+ pr_debug(DRVNAME ": Not a Fintek device\n");
- goto exit;
- }
-
-diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
-index b74c957..7601cc2 100644
---- a/drivers/hwmon/it87.c
-+++ b/drivers/hwmon/it87.c
-@@ -207,7 +207,7 @@ static inline u16 FAN16_TO_REG(long rpm)
-
- #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\
- ((val)+500)/1000),-128,127))
--#define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*1000)
-+#define TEMP_FROM_REG(val) ((val) * 1000)
-
- #define PWM_TO_REG(val) ((val) >> 1)
- #define PWM_FROM_REG(val) (((val)&0x7f) << 1)
-@@ -261,9 +261,9 @@ struct it87_data {
- u8 has_fan; /* Bitfield, fans enabled */
- u16 fan[5]; /* Register values, possibly combined */
- u16 fan_min[5]; /* Register values, possibly combined */
-- u8 temp[3]; /* Register value */
-- u8 temp_high[3]; /* Register value */
-- u8 temp_low[3]; /* Register value */
-+ s8 temp[3]; /* Register value */
-+ s8 temp_high[3]; /* Register value */
-+ s8 temp_low[3]; /* Register value */
- u8 sensor; /* Register value */
- u8 fan_div[3]; /* Register encoding, shifted right */
- u8 vid; /* Register encoding, combined */
-diff --git a/drivers/i2c/busses/i2c-acorn.c b/drivers/i2c/busses/i2c-acorn.c
-index 75089fe..c9a8d6f 100644
---- a/drivers/i2c/busses/i2c-acorn.c
-+++ b/drivers/i2c/busses/i2c-acorn.c
-@@ -84,6 +84,7 @@ static struct i2c_algo_bit_data ioc_data = {
-
- static struct i2c_adapter ioc_ops = {
- .id = I2C_HW_B_IOC,
-+ .nr = 0,
- .algo_data = &ioc_data,
- };
-
-@@ -91,7 +92,7 @@ static int __init i2c_ioc_init(void)
- {
- force_ones = FORCE_ONES | SCL | SDA;
-
-- return i2c_bit_add_bus(&ioc_ops);
-+ return i2c_bit_add_numbered_bus(&ioc_ops);
- }
-
- module_init(i2c_ioc_init);
-diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
-index 3972208..c688237 100644
---- a/drivers/i2c/busses/i2c-amd8111.c
-+++ b/drivers/i2c/busses/i2c-amd8111.c
-@@ -72,7 +72,7 @@ static unsigned int amd_ec_wait_write(struct amd_smbus *smbus)
- {
- int timeout = 500;
-
-- while (timeout-- && (inb(smbus->base + AMD_EC_SC) & AMD_EC_SC_IBF))
-+ while ((inb(smbus->base + AMD_EC_SC) & AMD_EC_SC_IBF) && --timeout)
- udelay(1);
-
- if (!timeout) {
-@@ -88,7 +88,7 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus)
- {
- int timeout = 500;
-
-- while (timeout-- && (~inb(smbus->base + AMD_EC_SC) & AMD_EC_SC_OBF))
-+ while ((~inb(smbus->base + AMD_EC_SC) & AMD_EC_SC_OBF) && --timeout)
- udelay(1);
-
- if (!timeout) {
-diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
-index 906f9b9..7f80d51 100644
---- a/drivers/i2c/busses/i2c-pxa.c
-+++ b/drivers/i2c/busses/i2c-pxa.c
-@@ -644,7 +644,7 @@ static int i2c_pxa_do_pio_xfer(struct pxa_i2c *i2c,
-
- i2c_pxa_start_message(i2c);
-
-- while (timeout-- && i2c->msg_num > 0) {
-+ while (i2c->msg_num > 0 && --timeout) {
- i2c_pxa_handler(0, i2c);
- udelay(10);
- }
-diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
-index c6a63f4..feb00df 100644
---- a/drivers/i2c/i2c-core.c
-+++ b/drivers/i2c/i2c-core.c
-@@ -1831,7 +1831,8 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr,
- case I2C_SMBUS_QUICK:
- msg[0].len = 0;
- /* Special case: The read/write field is used as data */
-- msg[0].flags = flags | (read_write==I2C_SMBUS_READ)?I2C_M_RD:0;
-+ msg[0].flags = flags | (read_write == I2C_SMBUS_READ ?
-+ I2C_M_RD : 0);
- num = 1;
- break;
- case I2C_SMBUS_BYTE:
-diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
-index c41c3b9..e60fc63 100644
---- a/drivers/ide/ide-iops.c
-+++ b/drivers/ide/ide-iops.c
-@@ -324,6 +324,8 @@ void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
- u8 io_32bit = drive->io_32bit;
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
-+ len++;
-+
- if (io_32bit) {
- unsigned long uninitialized_var(flags);
-
-diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
-index 2caf9da..7890be3 100644
---- a/drivers/infiniband/hw/nes/nes_cm.c
-+++ b/drivers/infiniband/hw/nes/nes_cm.c
-@@ -2495,12 +2495,14 @@ static int nes_disconnect(struct nes_qp *nesqp, int abrupt)
- int ret = 0;
- struct nes_vnic *nesvnic;
- struct nes_device *nesdev;
-+ struct nes_ib_device *nesibdev;
-
- nesvnic = to_nesvnic(nesqp->ibqp.device);
- if (!nesvnic)
- return -EINVAL;
-
- nesdev = nesvnic->nesdev;
-+ nesibdev = nesvnic->nesibdev;
-
- nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
- atomic_read(&nesvnic->netdev->refcnt));
-@@ -2512,6 +2514,8 @@ static int nes_disconnect(struct nes_qp *nesqp, int abrupt)
- } else {
- /* Need to free the Last Streaming Mode Message */
- if (nesqp->ietf_frame) {
-+ if (nesqp->lsmm_mr)
-+ nesibdev->ibdev.dereg_mr(nesqp->lsmm_mr);
- pci_free_consistent(nesdev->pcidev,
- nesqp->private_data_len+sizeof(struct ietf_mpa_frame),
- nesqp->ietf_frame, nesqp->ietf_frame_pbase);
-@@ -2545,6 +2549,10 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
- struct iw_cm_event cm_event;
- struct nes_hw_qp_wqe *wqe;
- struct nes_v4_quad nes_quad;
-+ struct nes_ib_device *nesibdev;
-+ struct ib_mr *ibmr = NULL;
-+ struct ib_phys_buf ibphysbuf;
-+ struct nes_pd *nespd;
- u32 crc_value;
- int ret;
-
-@@ -2605,6 +2613,26 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
- if (cm_id->remote_addr.sin_addr.s_addr !=
- cm_id->local_addr.sin_addr.s_addr) {
- u64temp = (unsigned long)nesqp;
-+ nesibdev = nesvnic->nesibdev;
-+ nespd = nesqp->nespd;
-+ ibphysbuf.addr = nesqp->ietf_frame_pbase;
-+ ibphysbuf.size = conn_param->private_data_len +
-+ sizeof(struct ietf_mpa_frame);
-+ ibmr = nesibdev->ibdev.reg_phys_mr((struct ib_pd *)nespd,
-+ &ibphysbuf, 1,
-+ IB_ACCESS_LOCAL_WRITE,
-+ (u64 *)&nesqp->ietf_frame);
-+ if (!ibmr) {
-+ nes_debug(NES_DBG_CM, "Unable to register memory region"
-+ "for lSMM for cm_node = %p \n",
-+ cm_node);
-+ return -ENOMEM;
-+ }
-+
-+ ibmr->pd = &nespd->ibpd;
-+ ibmr->device = nespd->ibpd.device;
-+ nesqp->lsmm_mr = ibmr;
-+
- u64temp |= NES_SW_CONTEXT_ALIGN>>1;
- set_wqe_64bit_value(wqe->wqe_words,
- NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX,
-@@ -2615,14 +2643,13 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
- wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] =
- cpu_to_le32(conn_param->private_data_len +
- sizeof(struct ietf_mpa_frame));
-- wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] =
-- cpu_to_le32((u32)nesqp->ietf_frame_pbase);
-- wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] =
-- cpu_to_le32((u32)((u64)nesqp->ietf_frame_pbase >> 32));
-+ set_wqe_64bit_value(wqe->wqe_words,
-+ NES_IWARP_SQ_WQE_FRAG0_LOW_IDX,
-+ (u64)nesqp->ietf_frame);
- wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] =
- cpu_to_le32(conn_param->private_data_len +
- sizeof(struct ietf_mpa_frame));
-- wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0;
-+ wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = ibmr->lkey;
-
- nesqp->nesqp_context->ird_ord_sizes |=
- cpu_to_le32(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT |
-diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
-index d36c9a0..e0f658d 100644
---- a/drivers/infiniband/hw/nes/nes_verbs.c
-+++ b/drivers/infiniband/hw/nes/nes_verbs.c
-@@ -1360,8 +1360,10 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
- NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT);
- nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.sq_encoded_size <<
- NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT);
-+ if (!udata) {
- nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_PRIV_EN);
- nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_FAST_REGISTER_EN);
-+ }
- nesqp->nesqp_context->cqs = cpu_to_le32(nesqp->nesscq->hw_cq.cq_number +
- ((u32)nesqp->nesrcq->hw_cq.cq_number << 16));
- u64temp = (u64)nesqp->hwqp.sq_pbase;
-diff --git a/drivers/infiniband/hw/nes/nes_verbs.h b/drivers/infiniband/hw/nes/nes_verbs.h
-index 6c6b4da..ae0ca9b 100644
---- a/drivers/infiniband/hw/nes/nes_verbs.h
-+++ b/drivers/infiniband/hw/nes/nes_verbs.h
-@@ -134,6 +134,7 @@ struct nes_qp {
- struct ietf_mpa_frame *ietf_frame;
- dma_addr_t ietf_frame_pbase;
- wait_queue_head_t state_waitq;
-+ struct ib_mr *lsmm_mr;
- unsigned long socket;
- struct nes_hw_qp hwqp;
- struct work_struct work;
-diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
-index 9c788e2..4101bf0 100644
---- a/drivers/md/raid1.c
-+++ b/drivers/md/raid1.c
-@@ -1233,8 +1233,9 @@ static void end_sync_write(struct bio *bio, int error)
- update_head_pos(mirror, r1_bio);
-
- if (atomic_dec_and_test(&r1_bio->remaining)) {
-- md_done_sync(mddev, r1_bio->sectors, uptodate);
-+ sector_t s = r1_bio->sectors;
- put_buf(r1_bio);
-+ md_done_sync(mddev, s, uptodate);
- }
- }
-
-diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
-index 970a96e..b2fde77 100644
---- a/drivers/md/raid10.c
-+++ b/drivers/md/raid10.c
-@@ -1236,6 +1236,7 @@ static void end_sync_read(struct bio *bio, int error)
- /* for reconstruct, we always reschedule after a read.
- * for resync, only after all reads
- */
-+ rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev);
- if (test_bit(R10BIO_IsRecover, &r10_bio->state) ||
- atomic_dec_and_test(&r10_bio->remaining)) {
- /* we have read all the blocks,
-@@ -1243,7 +1244,6 @@ static void end_sync_read(struct bio *bio, int error)
- */
- reschedule_retry(r10_bio);
- }
-- rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev);
- }
-
- static void end_sync_write(struct bio *bio, int error)
-@@ -1264,11 +1264,13 @@ static void end_sync_write(struct bio *bio, int error)
-
- update_head_pos(i, r10_bio);
-
-+ rdev_dec_pending(conf->mirrors[d].rdev, mddev);
- while (atomic_dec_and_test(&r10_bio->remaining)) {
- if (r10_bio->master_bio == NULL) {
- /* the primary of several recovery bios */
-- md_done_sync(mddev, r10_bio->sectors, 1);
-+ sector_t s = r10_bio->sectors;
- put_buf(r10_bio);
-+ md_done_sync(mddev, s, 1);
- break;
- } else {
- r10bio_t *r10_bio2 = (r10bio_t *)r10_bio->master_bio;
-@@ -1276,7 +1278,6 @@ static void end_sync_write(struct bio *bio, int error)
- r10_bio = r10_bio2;
- }
- }
-- rdev_dec_pending(conf->mirrors[d].rdev, mddev);
- }
-
- /*
-@@ -1749,8 +1750,6 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
- if (!go_faster && conf->nr_waiting)
- msleep_interruptible(1000);
-
-- bitmap_cond_end_sync(mddev->bitmap, sector_nr);
--
- /* Again, very different code for resync and recovery.
- * Both must result in an r10bio with a list of bios that
- * have bi_end_io, bi_sector, bi_bdev set,
-@@ -1886,6 +1885,8 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
- /* resync. Schedule a read for every block at this virt offset */
- int count = 0;
-
-+ bitmap_cond_end_sync(mddev->bitmap, sector_nr);
-+
- if (!bitmap_start_sync(mddev->bitmap, sector_nr,
- &sync_blocks, mddev->degraded) &&
- !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
-@@ -2010,13 +2011,13 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
- /* There is nowhere to write, so all non-sync
- * drives must be failed, so try the next chunk...
- */
-- {
-- sector_t sec = max_sector - sector_nr;
-- sectors_skipped += sec;
-+ if (sector_nr + max_sync < max_sector)
-+ max_sector = sector_nr + max_sync;
-+
-+ sectors_skipped += (max_sector - sector_nr);
- chunks_skipped ++;
- sector_nr = max_sector;
- goto skipped;
-- }
- }
-
- static int run(mddev_t *mddev)
-diff --git a/drivers/media/common/tuners/tda8290.c b/drivers/media/common/tuners/tda8290.c
-index c112bdd..edfd41f 100644
---- a/drivers/media/common/tuners/tda8290.c
-+++ b/drivers/media/common/tuners/tda8290.c
-@@ -724,7 +724,8 @@ struct dvb_frontend *tda829x_attach(struct dvb_frontend *fe,
- fe->ops.analog_ops.info.name = name;
-
- if (priv->ver & TDA8290) {
-- tda8290_init_tuner(fe);
-+ if (priv->ver & (TDA8275 | TDA8275A))
-+ tda8290_init_tuner(fe);
- tda8290_init_if(fe);
- } else if (priv->ver & TDA8295)
- tda8295_init_if(fe);
-diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c
-index cf4d893..3e08d98 100644
---- a/drivers/media/dvb/frontends/s5h1409.c
-+++ b/drivers/media/dvb/frontends/s5h1409.c
-@@ -545,9 +545,6 @@ static int s5h1409_set_frontend(struct dvb_frontend *fe,
-
- s5h1409_enable_modulation(fe, p->u.vsb.modulation);
-
-- /* Allow the demod to settle */
-- msleep(100);
--
- if (fe->ops.tuner_ops.set_params) {
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
-@@ -562,6 +559,10 @@ static int s5h1409_set_frontend(struct dvb_frontend *fe,
- s5h1409_set_qam_interleave_mode(fe);
- }
-
-+ /* Issue a reset to the demod so it knows to resync against the
-+ newly tuned frequency */
-+ s5h1409_softreset(fe);
-+
- return 0;
- }
-
-diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
-index 4bae38d..999f037 100644
---- a/drivers/media/video/ivtv/ivtv-ioctl.c
-+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
-@@ -1750,6 +1750,18 @@ static int ivtv_default(struct file *file, void *fh, int cmd, void *arg)
- break;
- }
-
-+ case IVTV_IOC_DMA_FRAME:
-+ case VIDEO_GET_PTS:
-+ case VIDEO_GET_FRAME_COUNT:
-+ case VIDEO_GET_EVENT:
-+ case VIDEO_PLAY:
-+ case VIDEO_STOP:
-+ case VIDEO_FREEZE:
-+ case VIDEO_CONTINUE:
-+ case VIDEO_COMMAND:
-+ case VIDEO_TRY_COMMAND:
-+ return ivtv_decoder_ioctls(file, cmd, (void *)arg);
-+
- default:
- return -EINVAL;
- }
-@@ -1792,18 +1804,6 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp,
- ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
- return 0;
-
-- case IVTV_IOC_DMA_FRAME:
-- case VIDEO_GET_PTS:
-- case VIDEO_GET_FRAME_COUNT:
-- case VIDEO_GET_EVENT:
-- case VIDEO_PLAY:
-- case VIDEO_STOP:
-- case VIDEO_FREEZE:
-- case VIDEO_CONTINUE:
-- case VIDEO_COMMAND:
-- case VIDEO_TRY_COMMAND:
-- return ivtv_decoder_ioctls(filp, cmd, (void *)arg);
--
- default:
- break;
- }
-diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
-index cc02fb1..8e7976a 100644
---- a/drivers/media/video/saa7127.c
-+++ b/drivers/media/video/saa7127.c
-@@ -149,7 +149,7 @@ static const struct i2c_reg_value saa7127_init_config_common[] = {
- { SAA7127_REG_COPYGEN_0, 0x77 },
- { SAA7127_REG_COPYGEN_1, 0x41 },
- { SAA7127_REG_COPYGEN_2, 0x00 }, /* Macrovision enable/disable */
-- { SAA7127_REG_OUTPUT_PORT_CONTROL, 0x9e },
-+ { SAA7127_REG_OUTPUT_PORT_CONTROL, 0xbf },
- { SAA7127_REG_GAIN_LUMINANCE_RGB, 0x00 },
- { SAA7127_REG_GAIN_COLORDIFF_RGB, 0x00 },
- { SAA7127_REG_INPUT_PORT_CONTROL_1, 0x80 }, /* for color bars */
-@@ -479,12 +479,18 @@ static int saa7127_set_output_type(struct i2c_client *client, int output)
- break;
-
- case SAA7127_OUTPUT_TYPE_COMPOSITE:
-- state->reg_2d = 0x08; /* 00001000 CVBS only, RGB DAC's off (high impedance mode) */
-+ if (state->ident == V4L2_IDENT_SAA7129)
-+ state->reg_2d = 0x20; /* CVBS only */
-+ else
-+ state->reg_2d = 0x08; /* 00001000 CVBS only, RGB DAC's off (high impedance mode) */
- state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
- break;
-
- case SAA7127_OUTPUT_TYPE_SVIDEO:
-- state->reg_2d = 0xff; /* 11111111 croma -> R, luma -> CVBS + G + B */
-+ if (state->ident == V4L2_IDENT_SAA7129)
-+ state->reg_2d = 0x18; /* Y + C */
-+ else
-+ state->reg_2d = 0xff; /*11111111 croma -> R, luma -> CVBS + G + B */
- state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
- break;
-
-@@ -499,7 +505,10 @@ static int saa7127_set_output_type(struct i2c_client *client, int output)
- break;
-
- case SAA7127_OUTPUT_TYPE_BOTH:
-- state->reg_2d = 0xbf;
-+ if (state->ident == V4L2_IDENT_SAA7129)
-+ state->reg_2d = 0x38;
-+ else
-+ state->reg_2d = 0xbf;
- state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */
- break;
-
-@@ -691,24 +700,6 @@ static int saa7127_probe(struct i2c_client *client,
-
- i2c_set_clientdata(client, state);
-
-- /* Configure Encoder */
--
-- v4l_dbg(1, debug, client, "Configuring encoder\n");
-- saa7127_write_inittab(client, saa7127_init_config_common);
-- saa7127_set_std(client, V4L2_STD_NTSC);
-- saa7127_set_output_type(client, SAA7127_OUTPUT_TYPE_BOTH);
-- saa7127_set_vps(client, &vbi);
-- saa7127_set_wss(client, &vbi);
-- saa7127_set_cc(client, &vbi);
-- saa7127_set_xds(client, &vbi);
-- if (test_image == 1)
-- /* The Encoder has an internal Colorbar generator */
-- /* This can be used for debugging */
-- saa7127_set_input_type(client, SAA7127_INPUT_TYPE_TEST_IMAGE);
-- else
-- saa7127_set_input_type(client, SAA7127_INPUT_TYPE_NORMAL);
-- saa7127_set_video_enable(client, 1);
--
- if (id->driver_data) { /* Chip type is already known */
- state->ident = id->driver_data;
- } else { /* Needs detection */
-@@ -730,6 +721,23 @@ static int saa7127_probe(struct i2c_client *client,
-
- v4l_info(client, "%s found @ 0x%x (%s)\n", client->name,
- client->addr << 1, client->adapter->name);
-+
-+ v4l_dbg(1, debug, client, "Configuring encoder\n");
-+ saa7127_write_inittab(client, saa7127_init_config_common);
-+ saa7127_set_std(client, V4L2_STD_NTSC);
-+ saa7127_set_output_type(client, SAA7127_OUTPUT_TYPE_BOTH);
-+ saa7127_set_vps(client, &vbi);
-+ saa7127_set_wss(client, &vbi);
-+ saa7127_set_cc(client, &vbi);
-+ saa7127_set_xds(client, &vbi);
-+ if (test_image == 1)
-+ /* The Encoder has an internal Colorbar generator */
-+ /* This can be used for debugging */
-+ saa7127_set_input_type(client, SAA7127_INPUT_TYPE_TEST_IMAGE);
-+ else
-+ saa7127_set_input_type(client, SAA7127_INPUT_TYPE_NORMAL);
-+ saa7127_set_video_enable(client, 1);
-+
- if (state->ident == V4L2_IDENT_SAA7129)
- saa7127_write_inittab(client, saa7129_init_config_extra);
- return 0;
-diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
-index 94c9f91..6bcca61 100644
---- a/drivers/misc/acer-wmi.c
-+++ b/drivers/misc/acer-wmi.c
-@@ -1297,7 +1297,7 @@ static int __init acer_wmi_init(void)
-
- set_quirks();
-
-- if (!acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
-+ if (acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) {
- interface->capability &= ~ACER_CAP_BRIGHTNESS;
- printk(ACER_INFO "Brightness must be controlled by "
- "generic video driver\n");
-diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
-index 05e2982..174a35f 100644
---- a/drivers/misc/hpilo.c
-+++ b/drivers/misc/hpilo.c
-@@ -710,6 +710,7 @@ out:
-
- static struct pci_device_id ilo_devices[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_COMPAQ, 0xB204) },
-+ { PCI_DEVICE(PCI_VENDOR_ID_HP, 0x3307) },
- { }
- };
- MODULE_DEVICE_TABLE(pci, ilo_devices);
-diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
-index 3d067c3..db7e4c4 100644
---- a/drivers/mmc/card/block.c
-+++ b/drivers/mmc/card/block.c
-@@ -514,7 +514,7 @@ static int mmc_blk_probe(struct mmc_card *card)
- if (err)
- goto out;
-
-- string_get_size(get_capacity(md->disk) << 9, STRING_UNITS_2,
-+ string_get_size((u64)get_capacity(md->disk) << 9, STRING_UNITS_2,
- cap_str, sizeof(cap_str));
- printk(KERN_INFO "%s: %s %s %s %s\n",
- md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
-diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
-index b92b172..b9f1e84 100644
---- a/drivers/mmc/card/mmc_test.c
-+++ b/drivers/mmc/card/mmc_test.c
-@@ -494,7 +494,7 @@ static int mmc_test_basic_read(struct mmc_test_card *test)
-
- sg_init_one(&sg, test->buffer, 512);
-
-- ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
-+ ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
- if (ret)
- return ret;
-
-diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
-index 9c50e6f..34ce270 100644
---- a/drivers/mmc/core/mmc_ops.c
-+++ b/drivers/mmc/core/mmc_ops.c
-@@ -248,12 +248,15 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
-
- sg_init_one(&sg, data_buf, len);
-
-- /*
-- * The spec states that CSR and CID accesses have a timeout
-- * of 64 clock cycles.
-- */
-- data.timeout_ns = 0;
-- data.timeout_clks = 64;
-+ if (opcode == MMC_SEND_CSD || opcode == MMC_SEND_CID) {
-+ /*
-+ * The spec states that CSR and CID accesses have a timeout
-+ * of 64 clock cycles.
-+ */
-+ data.timeout_ns = 0;
-+ data.timeout_clks = 64;
-+ } else
-+ mmc_set_data_timeout(&data, card);
-
- mmc_wait_for_req(host, &mrq);
-
-diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
-index 3b2085b..c6e5539 100644
---- a/drivers/mmc/host/s3cmci.c
-+++ b/drivers/mmc/host/s3cmci.c
-@@ -329,7 +329,7 @@ static void do_pio_write(struct s3cmci_host *host)
-
- to_ptr = host->base + host->sdidata;
-
-- while ((fifo = fifo_free(host))) {
-+ while ((fifo = fifo_free(host)) > 3) {
- if (!host->pio_bytes) {
- res = get_data_buffer(host, &host->pio_bytes,
- &host->pio_ptr);
-@@ -793,8 +793,7 @@ static void s3cmci_dma_setup(struct s3cmci_host *host,
- host->mem->start + host->sdidata);
-
- if (!setup_ok) {
-- s3c2410_dma_config(host->dma, 4,
-- (S3C2410_DCON_HWTRIG | S3C2410_DCON_CH0_SDI));
-+ s3c2410_dma_config(host->dma, 4, 0);
- s3c2410_dma_set_buffdone_fn(host->dma,
- s3cmci_dma_done_callback);
- s3c2410_dma_setflags(host->dma, S3C2410_DMAF_AUTOSTART);
-diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
-index 9bd7026..51e89e0 100644
---- a/drivers/mmc/host/sdhci-pci.c
-+++ b/drivers/mmc/host/sdhci-pci.c
-@@ -107,6 +107,7 @@ static const struct sdhci_pci_fixes sdhci_ene_714 = {
-
- static const struct sdhci_pci_fixes sdhci_cafe = {
- .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
-+ SDHCI_QUIRK_NO_BUSY_IRQ |
- SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
- };
-
-diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
-index 4d010a9..b4f6b3c 100644
---- a/drivers/mmc/host/sdhci.c
-+++ b/drivers/mmc/host/sdhci.c
-@@ -1286,8 +1286,11 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
- if (host->cmd->data)
- DBG("Cannot wait for busy signal when also "
- "doing a data transfer");
-- else
-+ else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ))
- return;
-+
-+ /* The controller does not support the end-of-busy IRQ,
-+ * fall through and take the SDHCI_INT_RESPONSE */
- }
-
- if (intmask & SDHCI_INT_RESPONSE)
-@@ -1718,7 +1721,9 @@ int sdhci_add_host(struct sdhci_host *host)
- #endif
-
- #ifdef CONFIG_LEDS_CLASS
-- host->led.name = mmc_hostname(mmc);
-+ snprintf(host->led_name, sizeof(host->led_name),
-+ "%s::", mmc_hostname(mmc));
-+ host->led.name = host->led_name;
- host->led.brightness = LED_OFF;
- host->led.default_trigger = mmc_hostname(mmc);
- host->led.brightness_set = sdhci_led_control;
-diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
-index 31f4b15..04c02ac 100644
---- a/drivers/mmc/host/sdhci.h
-+++ b/drivers/mmc/host/sdhci.h
-@@ -210,6 +210,8 @@ struct sdhci_host {
- #define SDHCI_QUIRK_BROKEN_SMALL_PIO (1<<13)
- /* Controller supports high speed but doesn't have the caps bit set */
- #define SDHCI_QUIRK_FORCE_HIGHSPEED (1<<14)
-+/* Controller does not provide transfer-complete interrupt when not busy */
-+#define SDHCI_QUIRK_NO_BUSY_IRQ (1<<15)
-
- int irq; /* Device IRQ */
- void __iomem * ioaddr; /* Mapped address */
-@@ -222,6 +224,7 @@ struct sdhci_host {
-
- #ifdef CONFIG_LEDS_CLASS
- struct led_classdev led; /* LED control */
-+ char led_name[32];
- #endif
-
- spinlock_t lock; /* Mutex */
-diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
-index 6dd9aff..18cba9e 100644
---- a/drivers/mtd/devices/mtd_dataflash.c
-+++ b/drivers/mtd/devices/mtd_dataflash.c
-@@ -815,7 +815,8 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi)
- if (!(info->flags & IS_POW2PS))
- return info;
- }
-- }
-+ } else
-+ return info;
- }
- }
-
-diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
-index de57490..aee6f1a 100644
---- a/drivers/net/usb/asix.c
-+++ b/drivers/net/usb/asix.c
-@@ -1450,6 +1450,14 @@ static const struct usb_device_id products [] = {
- // Cables-to-Go USB Ethernet Adapter
- USB_DEVICE(0x0b95, 0x772a),
- .driver_info = (unsigned long) &ax88772_info,
-+}, {
-+ // ABOCOM for pci
-+ USB_DEVICE(0x14ea, 0xab11),
-+ .driver_info = (unsigned long) &ax88178_info,
-+}, {
-+ // ASIX 88772a
-+ USB_DEVICE(0x0db0, 0xa877),
-+ .driver_info = (unsigned long) &ax88772_info,
- },
- { }, // END
- };
-diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
-index 0e061df..55e8ecc 100644
---- a/drivers/net/usb/cdc_ether.c
-+++ b/drivers/net/usb/cdc_ether.c
-@@ -559,6 +559,11 @@ static const struct usb_device_id products [] = {
- USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
- USB_CDC_PROTO_NONE),
- .driver_info = (unsigned long) &cdc_info,
-+}, {
-+ /* Ericsson F3507g */
-+ USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1900, USB_CLASS_COMM,
-+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-+ .driver_info = (unsigned long) &cdc_info,
- },
- { }, // END
- };
-diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c
-index e24f7b3..04882c8 100644
---- a/drivers/net/usb/zaurus.c
-+++ b/drivers/net/usb/zaurus.c
-@@ -341,6 +341,11 @@ static const struct usb_device_id products [] = {
- USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
- USB_CDC_PROTO_NONE),
- .driver_info = (unsigned long) &bogus_mdlm_info,
-+}, {
-+ /* Motorola MOTOMAGX phones */
-+ USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6425, USB_CLASS_COMM,
-+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-+ .driver_info = (unsigned long) &bogus_mdlm_info,
- },
-
- /* Olympus has some models with a Zaurus-compatible option.
-diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
-index 47c1c48..6c0e347 100644
---- a/drivers/net/wireless/rtl8187_dev.c
-+++ b/drivers/net/wireless/rtl8187_dev.c
-@@ -40,6 +40,10 @@ static struct usb_device_id rtl8187_table[] __devinitdata = {
- {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B},
- {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B},
- {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B},
-+ /* Surecom */
-+ {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187},
-+ /* Logitech */
-+ {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187},
- /* Netgear */
- {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187},
- {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187},
-@@ -49,8 +53,16 @@ static struct usb_device_id rtl8187_table[] __devinitdata = {
- /* Sitecom */
- {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
- {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
-+ /* Sphairon Access Systems GmbH */
-+ {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
-+ /* Dick Smith Electronics */
-+ {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187},
- /* Abocom */
- {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187},
-+ /* Qcom */
-+ {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187},
-+ /* AirLive */
-+ {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187},
- {}
- };
-
-diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
-index aac7006..d0c9736 100644
---- a/drivers/pci/pcie/aer/aerdrv_core.c
-+++ b/drivers/pci/pcie/aer/aerdrv_core.c
-@@ -108,6 +108,34 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
- }
- #endif /* 0 */
-
-+
-+static void set_device_error_reporting(struct pci_dev *dev, void *data)
-+{
-+ bool enable = *((bool *)data);
-+
-+ if (dev->pcie_type != PCIE_RC_PORT &&
-+ dev->pcie_type != PCIE_SW_UPSTREAM_PORT &&
-+ dev->pcie_type != PCIE_SW_DOWNSTREAM_PORT)
-+ return;
-+
-+ if (enable)
-+ pci_enable_pcie_error_reporting(dev);
-+ else
-+ pci_disable_pcie_error_reporting(dev);
-+}
-+
-+/**
-+ * set_downstream_devices_error_reporting - enable/disable the error reporting bits on the root port and its downstream ports.
-+ * @dev: pointer to root port's pci_dev data structure
-+ * @enable: true = enable error reporting, false = disable error reporting.
-+ */
-+static void set_downstream_devices_error_reporting(struct pci_dev *dev,
-+ bool enable)
-+{
-+ set_device_error_reporting(dev, &enable);
-+ pci_walk_bus(dev->subordinate, set_device_error_reporting, &enable);
-+}
-+
- static int find_device_iter(struct device *device, void *data)
- {
- struct pci_dev *dev;
-@@ -525,15 +553,11 @@ void aer_enable_rootport(struct aer_rpc *rpc)
- pci_read_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, ®32);
- pci_write_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, reg32);
-
-- /* Enable Root Port device reporting error itself */
-- pci_read_config_word(pdev, pos+PCI_EXP_DEVCTL, ®16);
-- reg16 = reg16 |
-- PCI_EXP_DEVCTL_CERE |
-- PCI_EXP_DEVCTL_NFERE |
-- PCI_EXP_DEVCTL_FERE |
-- PCI_EXP_DEVCTL_URRE;
-- pci_write_config_word(pdev, pos+PCI_EXP_DEVCTL,
-- reg16);
-+ /*
-+ * Enable error reporting for the root port device and downstream port
-+ * devices.
-+ */
-+ set_downstream_devices_error_reporting(pdev, true);
-
- /* Enable Root Port's interrupt in response to error messages */
- pci_write_config_dword(pdev,
-@@ -553,6 +577,12 @@ static void disable_root_aer(struct aer_rpc *rpc)
- u32 reg32;
- int pos;
-
-+ /*
-+ * Disable error reporting for the root port device and downstream port
-+ * devices.
-+ */
-+ set_downstream_devices_error_reporting(pdev, false);
-+
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
- /* Disable Root's interrupt in response to error messages */
- pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0);
-diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
-index 584422d..e22e7fb 100644
---- a/drivers/pci/pcie/portdrv_pci.c
-+++ b/drivers/pci/pcie/portdrv_pci.c
-@@ -101,14 +101,13 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev,
-
- pcie_portdrv_save_config(dev);
-
-- pci_enable_pcie_error_reporting(dev);
--
- return 0;
- }
-
- static void pcie_portdrv_remove (struct pci_dev *dev)
- {
- pcie_port_device_remove(dev);
-+ pci_disable_device(dev);
- kfree(pci_get_drvdata(dev));
- }
-
-diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
-index 5f4f85f..4fafcec 100644
---- a/drivers/pci/quirks.c
-+++ b/drivers/pci/quirks.c
-@@ -23,6 +23,7 @@
- #include <linux/acpi.h>
- #include <linux/kallsyms.h>
- #include <linux/dmi.h>
-+#include <linux/pci-aspm.h>
- #include "pci.h"
-
- int isa_dma_bridge_buggy;
-@@ -1543,6 +1544,30 @@ static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
- }
- DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
-
-+/*
-+ * The 82575 and 82598 may experience data corruption issues when transitioning
-+ * out of L0S. To prevent this we need to disable L0S on the pci-e link
-+ */
-+static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
-+{
-+ dev_info(&dev->dev, "Disabling L0s\n");
-+ pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
-+}
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
-+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
-+
- static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
- {
- /* rev 1 ncr53c810 chips don't set the class at all which means
-@@ -1778,7 +1803,6 @@ static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
- DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
- quirk_msi_ht_cap);
-
--
- /* The nVidia CK804 chipset may have 2 HT MSI mappings.
- * MSI are supported if the MSI capability set in any of these mappings.
- */
-@@ -1829,6 +1853,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
- PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
- ht_enable_msi_mapping);
-
-+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
-+ ht_enable_msi_mapping);
-+
- /* The P5N32-SLI Premium motherboard from Asus has a problem with msi
- * for the MCP55 NIC. It is not yet determined whether the msi problem
- * also affects other devices. As for now, turn off msi for this device.
-diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
-index a48e499..34be88d 100644
---- a/drivers/scsi/hptiop.c
-+++ b/drivers/scsi/hptiop.c
-@@ -1251,6 +1251,7 @@ static struct pci_device_id hptiop_id_table[] = {
- { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
- { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
- { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
-+ { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
- { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
- { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
- { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
-diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
-index 5081b39..726d147 100644
---- a/drivers/scsi/sd.c
-+++ b/drivers/scsi/sd.c
-@@ -106,6 +106,7 @@ static void scsi_disk_release(struct device *cdev);
- static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *);
- static void sd_print_result(struct scsi_disk *, int);
-
-+static DEFINE_SPINLOCK(sd_index_lock);
- static DEFINE_IDA(sd_index_ida);
-
- /* This semaphore is used to mediate the 0->1 reference get in the
-@@ -1847,7 +1848,9 @@ static int sd_probe(struct device *dev)
- if (!ida_pre_get(&sd_index_ida, GFP_KERNEL))
- goto out_put;
-
-+ spin_lock(&sd_index_lock);
- error = ida_get_new(&sd_index_ida, &index);
-+ spin_unlock(&sd_index_lock);
- } while (error == -EAGAIN);
-
- if (error)
-@@ -1910,7 +1913,9 @@ static int sd_probe(struct device *dev)
- return 0;
-
- out_free_index:
-+ spin_lock(&sd_index_lock);
- ida_remove(&sd_index_ida, index);
-+ spin_unlock(&sd_index_lock);
- out_put:
- put_disk(gd);
- out_free:
-@@ -1960,7 +1965,9 @@ static void scsi_disk_release(struct device *dev)
- struct scsi_disk *sdkp = to_scsi_disk(dev);
- struct gendisk *disk = sdkp->disk;
-
-+ spin_lock(&sd_index_lock);
- ida_remove(&sd_index_ida, sdkp->index);
-+ spin_unlock(&sd_index_lock);
-
- disk->private_data = NULL;
- put_disk(disk);
-diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
-index 303272a..a181ccf 100644
---- a/drivers/serial/8250.c
-+++ b/drivers/serial/8250.c
-@@ -2014,6 +2014,20 @@ static int serial8250_startup(struct uart_port *port)
-
- serial8250_set_mctrl(&up->port, up->port.mctrl);
-
-+ /* Serial over Lan (SoL) hack:
-+ Intel 8257x Gigabit ethernet chips have a
-+ 16550 emulation, to be used for Serial Over Lan.
-+ Those chips take a longer time than a normal
-+ serial device to signalize that a transmission
-+ data was queued. Due to that, the above test generally
-+ fails. One solution would be to delay the reading of
-+ iir. However, this is not reliable, since the timeout
-+ is variable. So, let's just don't test if we receive
-+ TX irq. This way, we'll never enable UART_BUG_TXEN.
-+ */
-+ if (up->port.flags & UPF_NO_TXEN_TEST)
-+ goto dont_test_tx_en;
-+
- /*
- * Do a quick test to see if we receive an
- * interrupt when we enable the TX irq.
-@@ -2033,6 +2047,7 @@ static int serial8250_startup(struct uart_port *port)
- up->bugs &= ~UART_BUG_TXEN;
- }
-
-+dont_test_tx_en:
- spin_unlock_irqrestore(&up->port.lock, flags);
-
- /*
-diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
-index c4fbd9e..f2662a2 100644
---- a/drivers/serial/8250_pci.c
-+++ b/drivers/serial/8250_pci.c
-@@ -758,6 +758,21 @@ pci_default_setup(struct serial_private *priv, struct pciserial_board *board,
- return setup_port(priv, port, bar, offset, board->reg_shift);
- }
-
-+static int skip_tx_en_setup(struct serial_private *priv,
-+ const struct pciserial_board *board,
-+ struct uart_port *port, int idx)
-+{
-+ port->flags |= UPF_NO_TXEN_TEST;
-+ printk(KERN_DEBUG "serial8250: skipping TxEn test for device "
-+ "[%04x:%04x] subsystem [%04x:%04x]\n",
-+ priv->dev->vendor,
-+ priv->dev->device,
-+ priv->dev->subsystem_vendor,
-+ priv->dev->subsystem_device);
-+
-+ return pci_default_setup(priv, board, port, idx);
-+}
-+
- /* This should be in linux/pci_ids.h */
- #define PCI_VENDOR_ID_SBSMODULARIO 0x124B
- #define PCI_SUBVENDOR_ID_SBSMODULARIO 0x124B
-@@ -824,6 +839,27 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
- .init = pci_inteli960ni_init,
- .setup = pci_default_setup,
- },
-+ {
-+ .vendor = PCI_VENDOR_ID_INTEL,
-+ .device = PCI_DEVICE_ID_INTEL_8257X_SOL,
-+ .subvendor = PCI_ANY_ID,
-+ .subdevice = PCI_ANY_ID,
-+ .setup = skip_tx_en_setup,
-+ },
-+ {
-+ .vendor = PCI_VENDOR_ID_INTEL,
-+ .device = PCI_DEVICE_ID_INTEL_82573L_SOL,
-+ .subvendor = PCI_ANY_ID,
-+ .subdevice = PCI_ANY_ID,
-+ .setup = skip_tx_en_setup,
-+ },
-+ {
-+ .vendor = PCI_VENDOR_ID_INTEL,
-+ .device = PCI_DEVICE_ID_INTEL_82573E_SOL,
-+ .subvendor = PCI_ANY_ID,
-+ .subdevice = PCI_ANY_ID,
-+ .setup = skip_tx_en_setup,
-+ },
- /*
- * ITE
- */
-diff --git a/drivers/serial/jsm/jsm_driver.c b/drivers/serial/jsm/jsm_driver.c
-index 338cf8a..edec3a9 100644
---- a/drivers/serial/jsm/jsm_driver.c
-+++ b/drivers/serial/jsm/jsm_driver.c
-@@ -84,6 +84,8 @@ static int jsm_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
- brd->pci_dev = pdev;
- if (pdev->device == PCIE_DEVICE_ID_NEO_4_IBM)
- brd->maxports = 4;
-+ else if (pdev->device == PCI_DEVICE_ID_DIGI_NEO_8)
-+ brd->maxports = 8;
- else
- brd->maxports = 2;
-
-@@ -212,6 +214,7 @@ static struct pci_device_id jsm_pci_tbl[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2RJ45), 0, 0, 2 },
- { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2RJ45PRI), 0, 0, 3 },
- { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCIE_DEVICE_ID_NEO_4_IBM), 0, 0, 4 },
-+ { PCI_DEVICE(PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_NEO_8), 0, 0, 5 },
- { 0, }
- };
- MODULE_DEVICE_TABLE(pci, jsm_pci_tbl);
-diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
-index d50a99f..4b3549b 100644
---- a/drivers/usb/class/cdc-acm.c
-+++ b/drivers/usb/class/cdc-acm.c
-@@ -1370,6 +1370,8 @@ static struct usb_device_id acm_ids[] = {
- { USB_DEVICE(0x0572, 0x1321), /* Conexant USB MODEM CX93010 */
- .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
- },
-+ { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
-+ },
-
- /* control interfaces with various AT-command sets */
- { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
-diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
-index 8497f63..e00127c 100644
---- a/drivers/usb/core/message.c
-+++ b/drivers/usb/core/message.c
-@@ -651,7 +651,7 @@ int usb_get_descriptor(struct usb_device *dev, unsigned char type,
- if (result <= 0 && result != -ETIMEDOUT)
- continue;
- if (result > 1 && ((u8 *)buf)[1] != type) {
-- result = -EPROTO;
-+ result = -ENODATA;
- continue;
- }
- break;
-@@ -694,8 +694,13 @@ static int usb_get_string(struct usb_device *dev, unsigned short langid,
- USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
- (USB_DT_STRING << 8) + index, langid, buf, size,
- USB_CTRL_GET_TIMEOUT);
-- if (!(result == 0 || result == -EPIPE))
-- break;
-+ if (result == 0 || result == -EPIPE)
-+ continue;
-+ if (result > 1 && ((u8 *) buf)[1] != USB_DT_STRING) {
-+ result = -ENODATA;
-+ continue;
-+ }
-+ break;
- }
- return result;
- }
-diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
-index 4725d15..e551bb3 100644
---- a/drivers/usb/host/ehci-hcd.c
-+++ b/drivers/usb/host/ehci-hcd.c
-@@ -485,6 +485,7 @@ static int ehci_init(struct usb_hcd *hcd)
- * periodic_size can shrink by USBCMD update if hcc_params allows.
- */
- ehci->periodic_size = DEFAULT_I_TDPS;
-+ INIT_LIST_HEAD(&ehci->cached_itd_list);
- if ((retval = ehci_mem_init(ehci, GFP_KERNEL)) < 0)
- return retval;
-
-@@ -497,6 +498,7 @@ static int ehci_init(struct usb_hcd *hcd)
-
- ehci->reclaim = NULL;
- ehci->next_uframe = -1;
-+ ehci->clock_frame = -1;
-
- /*
- * dedicate a qh for the async ring head, since we couldn't unlink
-diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
-index 0431397..10d5291 100644
---- a/drivers/usb/host/ehci-mem.c
-+++ b/drivers/usb/host/ehci-mem.c
-@@ -128,6 +128,7 @@ static inline void qh_put (struct ehci_qh *qh)
-
- static void ehci_mem_cleanup (struct ehci_hcd *ehci)
- {
-+ free_cached_itd_list(ehci);
- if (ehci->async)
- qh_put (ehci->async);
- ehci->async = NULL;
-diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
-index a081ee6..07bcb93 100644
---- a/drivers/usb/host/ehci-sched.c
-+++ b/drivers/usb/host/ehci-sched.c
-@@ -1004,7 +1004,8 @@ iso_stream_put(struct ehci_hcd *ehci, struct ehci_iso_stream *stream)
-
- is_in = (stream->bEndpointAddress & USB_DIR_IN) ? 0x10 : 0;
- stream->bEndpointAddress &= 0x0f;
-- stream->ep->hcpriv = NULL;
-+ if (stream->ep)
-+ stream->ep->hcpriv = NULL;
-
- if (stream->rescheduled) {
- ehci_info (ehci, "ep%d%s-iso rescheduled "
-@@ -1653,14 +1654,28 @@ itd_complete (
- (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");
- }
- iso_stream_put (ehci, stream);
-- /* OK to recycle this ITD now that its completion callback ran. */
-+
- done:
- usb_put_urb(urb);
- itd->urb = NULL;
-- itd->stream = NULL;
-- list_move(&itd->itd_list, &stream->free_list);
-- iso_stream_put(ehci, stream);
--
-+ if (ehci->clock_frame != itd->frame || itd->index[7] != -1) {
-+ /* OK to recycle this ITD now. */
-+ itd->stream = NULL;
-+ list_move(&itd->itd_list, &stream->free_list);
-+ iso_stream_put(ehci, stream);
-+ } else {
-+ /* HW might remember this ITD, so we can't recycle it yet.
-+ * Move it to a safe place until a new frame starts.
-+ */
-+ list_move(&itd->itd_list, &ehci->cached_itd_list);
-+ if (stream->refcount == 2) {
-+ /* If iso_stream_put() were called here, stream
-+ * would be freed. Instead, just prevent reuse.
-+ */
-+ stream->ep->hcpriv = NULL;
-+ stream->ep = NULL;
-+ }
-+ }
- return retval;
- }
-
-@@ -2101,6 +2116,20 @@ done:
-
- /*-------------------------------------------------------------------------*/
-
-+static void free_cached_itd_list(struct ehci_hcd *ehci)
-+{
-+ struct ehci_itd *itd, *n;
-+
-+ list_for_each_entry_safe(itd, n, &ehci->cached_itd_list, itd_list) {
-+ struct ehci_iso_stream *stream = itd->stream;
-+ itd->stream = NULL;
-+ list_move(&itd->itd_list, &stream->free_list);
-+ iso_stream_put(ehci, stream);
-+ }
-+}
-+
-+/*-------------------------------------------------------------------------*/
-+
- static void
- scan_periodic (struct ehci_hcd *ehci)
- {
-@@ -2115,10 +2144,17 @@ scan_periodic (struct ehci_hcd *ehci)
- * Touches as few pages as possible: cache-friendly.
- */
- now_uframe = ehci->next_uframe;
-- if (HC_IS_RUNNING (ehci_to_hcd(ehci)->state))
-+ if (HC_IS_RUNNING(ehci_to_hcd(ehci)->state)) {
- clock = ehci_readl(ehci, &ehci->regs->frame_index);
-- else
-+ clock_frame = (clock >> 3) % ehci->periodic_size;
-+ } else {
- clock = now_uframe + mod - 1;
-+ clock_frame = -1;
-+ }
-+ if (ehci->clock_frame != clock_frame) {
-+ free_cached_itd_list(ehci);
-+ ehci->clock_frame = clock_frame;
-+ }
- clock %= mod;
- clock_frame = clock >> 3;
-
-@@ -2277,6 +2313,10 @@ restart:
- /* rescan the rest of this frame, then ... */
- clock = now;
- clock_frame = clock >> 3;
-+ if (ehci->clock_frame != clock_frame) {
-+ free_cached_itd_list(ehci);
-+ ehci->clock_frame = clock_frame;
-+ }
- } else {
- now_uframe++;
- now_uframe %= mod;
-diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
-index c7d4b5a..fe97688 100644
---- a/drivers/usb/host/ehci.h
-+++ b/drivers/usb/host/ehci.h
-@@ -87,6 +87,10 @@ struct ehci_hcd { /* one per controller */
- int next_uframe; /* scan periodic, start here */
- unsigned periodic_sched; /* periodic activity count */
-
-+ /* list of itds completed while clock_frame was still active */
-+ struct list_head cached_itd_list;
-+ unsigned clock_frame;
-+
- /* per root hub port */
- unsigned long reset_done [EHCI_MAX_ROOT_PORTS];
-
-@@ -210,6 +214,8 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action)
- }
- }
-
-+static void free_cached_itd_list(struct ehci_hcd *ehci);
-+
- /*-------------------------------------------------------------------------*/
-
- #include <linux/usb/ehci_def.h>
-diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
-index d0ed63d..5c3da3f 100644
---- a/drivers/usb/serial/option.c
-+++ b/drivers/usb/serial/option.c
-@@ -289,6 +289,9 @@ static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *po
- #define ERICSSON_VENDOR_ID 0x0bdb
- #define ERICSSON_PRODUCT_F3507G 0x1900
-
-+#define BENQ_VENDOR_ID 0x04a5
-+#define BENQ_PRODUCT_H10 0x4068
-+
- static struct usb_device_id option_ids[] = {
- { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
- { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
-@@ -498,6 +501,8 @@ static struct usb_device_id option_ids[] = {
- { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_MF628) },
- { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH) },
- { USB_DEVICE(ERICSSON_VENDOR_ID, ERICSSON_PRODUCT_F3507G) },
-+ { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
-+ { USB_DEVICE(0x1da5, 0x4515) }, /* BenQ H20 */
- { } /* Terminating entry */
- };
- MODULE_DEVICE_TABLE(usb, option_ids);
-diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
-index 729a256..781d581 100644
---- a/drivers/usb/storage/unusual_devs.h
-+++ b/drivers/usb/storage/unusual_devs.h
-@@ -876,13 +876,13 @@ UNUSUAL_DEV( 0x05e3, 0x0701, 0x0000, 0xffff,
- "Genesys Logic",
- "USB to IDE Optical",
- US_SC_DEVICE, US_PR_DEVICE, NULL,
-- US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ),
-+ US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ),
-
- UNUSUAL_DEV( 0x05e3, 0x0702, 0x0000, 0xffff,
- "Genesys Logic",
- "USB to IDE Disk",
- US_SC_DEVICE, US_PR_DEVICE, NULL,
-- US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 ),
-+ US_FL_GO_SLOW | US_FL_MAX_SECTORS_64 | US_FL_IGNORE_RESIDUE ),
-
- /* Reported by Hanno Boeck <hanno@gmx.de>
- * Taken from the Lycoris Kernel */
-diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
-index 0b798fd..74c92d3 100644
---- a/drivers/watchdog/ks8695_wdt.c
-+++ b/drivers/watchdog/ks8695_wdt.c
-@@ -21,6 +21,7 @@
- #include <linux/watchdog.h>
- #include <linux/io.h>
- #include <linux/uaccess.h>
-+#include <mach/timex.h>
- #include <mach/regs-timer.h>
-
- #define WDT_DEFAULT_TIME 5 /* seconds */
-diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
-index 57027f4..f3553fa 100644
---- a/drivers/watchdog/rc32434_wdt.c
-+++ b/drivers/watchdog/rc32434_wdt.c
-@@ -34,104 +34,89 @@
- #include <asm/time.h>
- #include <asm/mach-rc32434/integ.h>
-
--#define MAX_TIMEOUT 20
--#define RC32434_WDT_INTERVAL (15 * HZ)
--
--#define VERSION "0.2"
-+#define VERSION "0.4"
-
- static struct {
-- struct completion stop;
-- int running;
-- struct timer_list timer;
-- int queue;
-- int default_ticks;
- unsigned long inuse;
- } rc32434_wdt_device;
-
- static struct integ __iomem *wdt_reg;
--static int ticks = 100 * HZ;
-
- static int expect_close;
--static int timeout;
-+
-+/* Board internal clock speed in Hz,
-+ * the watchdog timer ticks at. */
-+extern unsigned int idt_cpu_freq;
-+
-+/* translate wtcompare value to seconds and vice versa */
-+#define WTCOMP2SEC(x) (x / idt_cpu_freq)
-+#define SEC2WTCOMP(x) (x * idt_cpu_freq)
-+
-+/* Use a default timeout of 20s. This should be
-+ * safe for CPU clock speeds up to 400MHz, as
-+ * ((2 ^ 32) - 1) / (400MHz / 2) = 21s. */
-+#define WATCHDOG_TIMEOUT 20
-+
-+static int timeout = WATCHDOG_TIMEOUT;
-
- static int nowayout = WATCHDOG_NOWAYOUT;
- module_param(nowayout, int, 0);
- MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
- __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-
-+/* apply or and nand masks to data read from addr and write back */
-+#define SET_BITS(addr, or, nand) \
-+ writel((readl(&addr) | or) & ~nand, &addr)
-
- static void rc32434_wdt_start(void)
- {
-- u32 val;
--
-- if (!rc32434_wdt_device.inuse) {
-- writel(0, &wdt_reg->wtcount);
-+ u32 or, nand;
-
-- val = RC32434_ERR_WRE;
-- writel(readl(&wdt_reg->errcs) | val, &wdt_reg->errcs);
-+ /* zero the counter before enabling */
-+ writel(0, &wdt_reg->wtcount);
-
-- val = RC32434_WTC_EN;
-- writel(readl(&wdt_reg->wtc) | val, &wdt_reg->wtc);
-- }
-- rc32434_wdt_device.running++;
--}
-+ /* don't generate a non-maskable interrupt,
-+ * do a warm reset instead */
-+ nand = 1 << RC32434_ERR_WNE;
-+ or = 1 << RC32434_ERR_WRE;
-
--static void rc32434_wdt_stop(void)
--{
-- u32 val;
-+ /* reset the ERRCS timeout bit in case it's set */
-+ nand |= 1 << RC32434_ERR_WTO;
-
-- if (rc32434_wdt_device.running) {
-+ SET_BITS(wdt_reg->errcs, or, nand);
-
-- val = ~RC32434_WTC_EN;
-- writel(readl(&wdt_reg->wtc) & val, &wdt_reg->wtc);
-+ /* reset WTC timeout bit and enable WDT */
-+ nand = 1 << RC32434_WTC_TO;
-+ or = 1 << RC32434_WTC_EN;
-
-- val = ~RC32434_ERR_WRE;
-- writel(readl(&wdt_reg->errcs) & val, &wdt_reg->errcs);
-+ SET_BITS(wdt_reg->wtc, or, nand);
-+}
-
-- rc32434_wdt_device.running = 0;
-- }
-+static void rc32434_wdt_stop(void)
-+{
-+ /* Disable WDT */
-+ SET_BITS(wdt_reg->wtc, 0, 1 << RC32434_WTC_EN);
- }
-
--static void rc32434_wdt_set(int new_timeout)
-+static int rc32434_wdt_set(int new_timeout)
- {
-- u32 cmp = new_timeout * HZ;
-- u32 state, val;
-+ int max_to = WTCOMP2SEC((u32)-1);
-
-+ if (new_timeout < 0 || new_timeout > max_to) {
-+ printk(KERN_ERR KBUILD_MODNAME
-+ ": timeout value must be between 0 and %d",
-+ max_to);
-+ return -EINVAL;
-+ }
- timeout = new_timeout;
-- /*
-- * store and disable WTC
-- */
-- state = (u32)(readl(&wdt_reg->wtc) & RC32434_WTC_EN);
-- val = ~RC32434_WTC_EN;
-- writel(readl(&wdt_reg->wtc) & val, &wdt_reg->wtc);
--
-- writel(0, &wdt_reg->wtcount);
-- writel(cmp, &wdt_reg->wtcompare);
--
-- /*
-- * restore WTC
-- */
--
-- writel(readl(&wdt_reg->wtc) | state, &wdt_reg);
--}
-+ writel(SEC2WTCOMP(timeout), &wdt_reg->wtcompare);
-
--static void rc32434_wdt_reset(void)
--{
-- ticks = rc32434_wdt_device.default_ticks;
-+ return 0;
- }
-
--static void rc32434_wdt_update(unsigned long unused)
-+static void rc32434_wdt_ping(void)
- {
-- if (rc32434_wdt_device.running)
-- ticks--;
--
- writel(0, &wdt_reg->wtcount);
--
-- if (rc32434_wdt_device.queue && ticks)
-- mod_timer(&rc32434_wdt_device.timer,
-- jiffies + RC32434_WDT_INTERVAL);
-- else
-- complete(&rc32434_wdt_device.stop);
- }
-
- static int rc32434_wdt_open(struct inode *inode, struct file *file)
-@@ -142,19 +127,23 @@ static int rc32434_wdt_open(struct inode *inode, struct file *file)
- if (nowayout)
- __module_get(THIS_MODULE);
-
-+ rc32434_wdt_start();
-+ rc32434_wdt_ping();
-+
- return nonseekable_open(inode, file);
- }
-
- static int rc32434_wdt_release(struct inode *inode, struct file *file)
- {
-- if (expect_close && nowayout == 0) {
-+ if (expect_close == 42) {
- rc32434_wdt_stop();
- printk(KERN_INFO KBUILD_MODNAME ": disabling watchdog timer\n");
- module_put(THIS_MODULE);
-- } else
-+ } else {
- printk(KERN_CRIT KBUILD_MODNAME
- ": device closed unexpectedly. WDT will not stop !\n");
--
-+ rc32434_wdt_ping();
-+ }
- clear_bit(0, &rc32434_wdt_device.inuse);
- return 0;
- }
-@@ -174,10 +163,10 @@ static ssize_t rc32434_wdt_write(struct file *file, const char *data,
- if (get_user(c, data + i))
- return -EFAULT;
- if (c == 'V')
-- expect_close = 1;
-+ expect_close = 42;
- }
- }
-- rc32434_wdt_update(0);
-+ rc32434_wdt_ping();
- return len;
- }
- return 0;
-@@ -197,11 +186,11 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
- };
- switch (cmd) {
- case WDIOC_KEEPALIVE:
-- rc32434_wdt_reset();
-+ rc32434_wdt_ping();
- break;
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
-- value = readl(&wdt_reg->wtcount);
-+ value = 0;
- if (copy_to_user(argp, &value, sizeof(int)))
- return -EFAULT;
- break;
-@@ -218,6 +207,7 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
- break;
- case WDIOS_DISABLECARD:
- rc32434_wdt_stop();
-+ break;
- default:
- return -EINVAL;
- }
-@@ -225,11 +215,9 @@ static long rc32434_wdt_ioctl(struct file *file, unsigned int cmd,
- case WDIOC_SETTIMEOUT:
- if (copy_from_user(&new_timeout, argp, sizeof(int)))
- return -EFAULT;
-- if (new_timeout < 1)
-+ if (rc32434_wdt_set(new_timeout))
- return -EINVAL;
-- if (new_timeout > MAX_TIMEOUT)
-- return -EINVAL;
-- rc32434_wdt_set(new_timeout);
-+ /* Fall through */
- case WDIOC_GETTIMEOUT:
- return copy_to_user(argp, &timeout, sizeof(int));
- default:
-@@ -254,15 +242,15 @@ static struct miscdevice rc32434_wdt_miscdev = {
- .fops = &rc32434_wdt_fops,
- };
-
--static char banner[] = KERN_INFO KBUILD_MODNAME
-+static char banner[] __devinitdata = KERN_INFO KBUILD_MODNAME
- ": Watchdog Timer version " VERSION ", timer margin: %d sec\n";
-
--static int rc32434_wdt_probe(struct platform_device *pdev)
-+static int __devinit rc32434_wdt_probe(struct platform_device *pdev)
- {
- int ret;
- struct resource *r;
-
-- r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rb500_wdt_res");
-+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rb532_wdt_res");
- if (!r) {
- printk(KERN_ERR KBUILD_MODNAME
- "failed to retrieve resources\n");
-@@ -277,24 +265,12 @@ static int rc32434_wdt_probe(struct platform_device *pdev)
- }
-
- ret = misc_register(&rc32434_wdt_miscdev);
--
- if (ret < 0) {
- printk(KERN_ERR KBUILD_MODNAME
- "failed to register watchdog device\n");
- goto unmap;
- }
-
-- init_completion(&rc32434_wdt_device.stop);
-- rc32434_wdt_device.queue = 0;
--
-- clear_bit(0, &rc32434_wdt_device.inuse);
--
-- setup_timer(&rc32434_wdt_device.timer, rc32434_wdt_update, 0L);
--
-- rc32434_wdt_device.default_ticks = ticks;
--
-- rc32434_wdt_start();
--
- printk(banner, timeout);
-
- return 0;
-@@ -304,23 +280,17 @@ unmap:
- return ret;
- }
-
--static int rc32434_wdt_remove(struct platform_device *pdev)
-+static int __devexit rc32434_wdt_remove(struct platform_device *pdev)
- {
-- if (rc32434_wdt_device.queue) {
-- rc32434_wdt_device.queue = 0;
-- wait_for_completion(&rc32434_wdt_device.stop);
-- }
- misc_deregister(&rc32434_wdt_miscdev);
--
- iounmap(wdt_reg);
--
- return 0;
- }
-
- static struct platform_driver rc32434_wdt = {
- .probe = rc32434_wdt_probe,
-- .remove = rc32434_wdt_remove,
-- .driver = {
-+ .remove = __devexit_p(rc32434_wdt_remove),
-+ .driver = {
- .name = "rc32434_wdt",
- }
- };
-diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
-index e078b7a..4c1cb9a 100644
---- a/fs/cifs/CHANGES
-+++ b/fs/cifs/CHANGES
-@@ -1,3 +1,5 @@
-+Fix oops in cifs_dfs_ref.c when prefixpath is not reachable when using DFS.
-+
- Version 1.55
- ------------
- Various fixes to make delete of open files behavior more predictable
-diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
-index 2851d5d..3cfa452 100644
---- a/fs/cifs/sess.c
-+++ b/fs/cifs/sess.c
-@@ -228,7 +228,7 @@ static int decode_unicode_ssetup(char **pbcc_area, int bleft,
-
- kfree(ses->serverOS);
- /* UTF-8 string will not grow more than four times as big as UCS-16 */
-- ses->serverOS = kzalloc(4 * len, GFP_KERNEL);
-+ ses->serverOS = kzalloc((4 * len) + 2 /* trailing null */, GFP_KERNEL);
- if (ses->serverOS != NULL)
- cifs_strfromUCS_le(ses->serverOS, (__le16 *)data, len, nls_cp);
- data += 2 * (len + 1);
-@@ -241,7 +241,7 @@ static int decode_unicode_ssetup(char **pbcc_area, int bleft,
- return rc;
-
- kfree(ses->serverNOS);
-- ses->serverNOS = kzalloc(4 * len, GFP_KERNEL); /* BB this is wrong length FIXME BB */
-+ ses->serverNOS = kzalloc((4 * len) + 2 /* trailing null */, GFP_KERNEL);
- if (ses->serverNOS != NULL) {
- cifs_strfromUCS_le(ses->serverNOS, (__le16 *)data, len,
- nls_cp);
-diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
-index c8f8d59..61cb48f 100644
---- a/fs/compat_ioctl.c
-+++ b/fs/compat_ioctl.c
-@@ -1938,6 +1938,8 @@ ULONG_IOCTL(SET_BITMAP_FILE)
- /* Big K */
- COMPATIBLE_IOCTL(PIO_FONT)
- COMPATIBLE_IOCTL(GIO_FONT)
-+COMPATIBLE_IOCTL(PIO_CMAP)
-+COMPATIBLE_IOCTL(GIO_CMAP)
- ULONG_IOCTL(KDSIGACCEPT)
- COMPATIBLE_IOCTL(KDGETKEYCODE)
- COMPATIBLE_IOCTL(KDSETKEYCODE)
-diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
-index dfccef5..0b0c0fa 100644
---- a/fs/ext4/ext4.h
-+++ b/fs/ext4/ext4.h
-@@ -862,7 +862,7 @@ static inline unsigned ext4_rec_len_from_disk(__le16 dlen)
- {
- unsigned len = le16_to_cpu(dlen);
-
-- if (len == EXT4_MAX_REC_LEN)
-+ if (len == EXT4_MAX_REC_LEN || len == 0)
- return 1 << 16;
- return len;
- }
-diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
-index b363c49..03c0819 100644
---- a/fs/ext4/ialloc.c
-+++ b/fs/ext4/ialloc.c
-@@ -703,6 +703,13 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode)
-
- if (sbi->s_log_groups_per_flex) {
- ret2 = find_group_flex(sb, dir, &group);
-+ if (ret2 == -1) {
-+ ret2 = find_group_other(sb, dir, &group);
-+ if (ret2 == 0 && printk_ratelimit())
-+ printk(KERN_NOTICE "ext4: find_group_flex "
-+ "failed, fallback succeeded dir %lu\n",
-+ dir->i_ino);
-+ }
- goto got_group;
- }
-
-diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
-index ccb6947..b7f20b0 100644
---- a/fs/ext4/inode.c
-+++ b/fs/ext4/inode.c
-@@ -46,8 +46,10 @@
- static inline int ext4_begin_ordered_truncate(struct inode *inode,
- loff_t new_size)
- {
-- return jbd2_journal_begin_ordered_truncate(&EXT4_I(inode)->jinode,
-- new_size);
-+ return jbd2_journal_begin_ordered_truncate(
-+ EXT4_SB(inode->i_sb)->s_journal,
-+ &EXT4_I(inode)->jinode,
-+ new_size);
- }
-
- static void ext4_invalidatepage(struct page *page, unsigned long offset);
-@@ -1345,6 +1347,10 @@ retry:
- goto out;
- }
-
-+ /* We cannot recurse into the filesystem as the transaction is already
-+ * started */
-+ flags |= AOP_FLAG_NOFS;
-+
- page = grab_cache_page_write_begin(mapping, index, flags);
- if (!page) {
- ext4_journal_stop(handle);
-@@ -1354,7 +1360,7 @@ retry:
- *pagep = page;
-
- ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
-- ext4_get_block);
-+ ext4_get_block);
-
- if (!ret && ext4_should_journal_data(inode)) {
- ret = walk_page_buffers(handle, page_buffers(page),
-@@ -2400,6 +2406,7 @@ static int ext4_da_writepages(struct address_space *mapping,
- struct inode *inode = mapping->host;
- int no_nrwrite_index_update;
- long pages_written = 0, pages_skipped;
-+ int range_cyclic, cycled = 1, io_done = 0;
- int needed_blocks, ret = 0, nr_to_writebump = 0;
- struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
-
-@@ -2437,9 +2444,15 @@ static int ext4_da_writepages(struct address_space *mapping,
- if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
- range_whole = 1;
-
-- if (wbc->range_cyclic)
-+ range_cyclic = wbc->range_cyclic;
-+ if (wbc->range_cyclic) {
- index = mapping->writeback_index;
-- else
-+ if (index)
-+ cycled = 0;
-+ wbc->range_start = index << PAGE_CACHE_SHIFT;
-+ wbc->range_end = LLONG_MAX;
-+ wbc->range_cyclic = 0;
-+ } else
- index = wbc->range_start >> PAGE_CACHE_SHIFT;
-
- mpd.wbc = wbc;
-@@ -2453,6 +2466,7 @@ static int ext4_da_writepages(struct address_space *mapping,
- wbc->no_nrwrite_index_update = 1;
- pages_skipped = wbc->pages_skipped;
-
-+retry:
- while (!ret && wbc->nr_to_write > 0) {
-
- /*
-@@ -2495,6 +2509,7 @@ static int ext4_da_writepages(struct address_space *mapping,
- pages_written += mpd.pages_written;
- wbc->pages_skipped = pages_skipped;
- ret = 0;
-+ io_done = 1;
- } else if (wbc->nr_to_write)
- /*
- * There is no more writeout needed
-@@ -2503,6 +2518,13 @@ static int ext4_da_writepages(struct address_space *mapping,
- */
- break;
- }
-+ if (!io_done && !cycled) {
-+ cycled = 1;
-+ index = 0;
-+ wbc->range_start = index << PAGE_CACHE_SHIFT;
-+ wbc->range_end = mapping->writeback_index - 1;
-+ goto retry;
-+ }
- if (pages_skipped != wbc->pages_skipped)
- printk(KERN_EMERG "This should not happen leaving %s "
- "with nr_to_write = %ld ret = %d\n",
-@@ -2510,6 +2532,7 @@ static int ext4_da_writepages(struct address_space *mapping,
-
- /* Update index */
- index += pages_written;
-+ wbc->range_cyclic = range_cyclic;
- if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
- /*
- * set the writeback_index so that range_cyclic
-@@ -2584,6 +2607,9 @@ retry:
- ret = PTR_ERR(handle);
- goto out;
- }
-+ /* We cannot recurse into the filesystem as the transaction is already
-+ * started */
-+ flags |= AOP_FLAG_NOFS;
-
- page = grab_cache_page_write_begin(mapping, index, flags);
- if (!page) {
-diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
-index 775ef32..f8e923f 100644
---- a/fs/ext4/mballoc.c
-+++ b/fs/ext4/mballoc.c
-@@ -3690,6 +3690,8 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
- pa->pa_free = pa->pa_len;
- atomic_set(&pa->pa_count, 1);
- spin_lock_init(&pa->pa_lock);
-+ INIT_LIST_HEAD(&pa->pa_inode_list);
-+ INIT_LIST_HEAD(&pa->pa_group_list);
- pa->pa_deleted = 0;
- pa->pa_linear = 0;
-
-@@ -3748,6 +3750,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
- atomic_set(&pa->pa_count, 1);
- spin_lock_init(&pa->pa_lock);
- INIT_LIST_HEAD(&pa->pa_inode_list);
-+ INIT_LIST_HEAD(&pa->pa_group_list);
- pa->pa_deleted = 0;
- pa->pa_linear = 1;
-
-@@ -4456,23 +4459,26 @@ static int ext4_mb_release_context(struct ext4_allocation_context *ac)
- pa->pa_free -= ac->ac_b_ex.fe_len;
- pa->pa_len -= ac->ac_b_ex.fe_len;
- spin_unlock(&pa->pa_lock);
-- /*
-- * We want to add the pa to the right bucket.
-- * Remove it from the list and while adding
-- * make sure the list to which we are adding
-- * doesn't grow big.
-- */
-- if (likely(pa->pa_free)) {
-- spin_lock(pa->pa_obj_lock);
-- list_del_rcu(&pa->pa_inode_list);
-- spin_unlock(pa->pa_obj_lock);
-- ext4_mb_add_n_trim(ac);
-- }
- }
-- ext4_mb_put_pa(ac, ac->ac_sb, pa);
- }
- if (ac->alloc_semp)
- up_read(ac->alloc_semp);
-+ if (pa) {
-+ /*
-+ * We want to add the pa to the right bucket.
-+ * Remove it from the list and while adding
-+ * make sure the list to which we are adding
-+ * doesn't grow big. We need to release
-+ * alloc_semp before calling ext4_mb_add_n_trim()
-+ */
-+ if (pa->pa_linear && likely(pa->pa_free)) {
-+ spin_lock(pa->pa_obj_lock);
-+ list_del_rcu(&pa->pa_inode_list);
-+ spin_unlock(pa->pa_obj_lock);
-+ ext4_mb_add_n_trim(ac);
-+ }
-+ ext4_mb_put_pa(ac, ac->ac_sb, pa);
-+ }
- if (ac->ac_bitmap_page)
- page_cache_release(ac->ac_bitmap_page);
- if (ac->ac_buddy_page)
-diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
-index f2a9cf4..9aa0fbe 100644
---- a/fs/ext4/migrate.c
-+++ b/fs/ext4/migrate.c
-@@ -480,7 +480,7 @@ int ext4_ext_migrate(struct inode *inode)
- + 1);
- if (IS_ERR(handle)) {
- retval = PTR_ERR(handle);
-- goto err_out;
-+ return retval;
- }
- tmp_inode = ext4_new_inode(handle,
- inode->i_sb->s_root->d_inode,
-@@ -488,8 +488,7 @@ int ext4_ext_migrate(struct inode *inode)
- if (IS_ERR(tmp_inode)) {
- retval = -ENOMEM;
- ext4_journal_stop(handle);
-- tmp_inode = NULL;
-- goto err_out;
-+ return retval;
- }
- i_size_write(tmp_inode, i_size_read(inode));
- /*
-@@ -617,8 +616,7 @@ err_out:
-
- ext4_journal_stop(handle);
-
-- if (tmp_inode)
-- iput(tmp_inode);
-+ iput(tmp_inode);
-
- return retval;
- }
-diff --git a/fs/ext4/super.c b/fs/ext4/super.c
-index d38e3e1..e522b8c 100644
---- a/fs/ext4/super.c
-+++ b/fs/ext4/super.c
-@@ -2914,15 +2914,15 @@ static void ext4_write_super(struct super_block *sb)
-
- static int ext4_sync_fs(struct super_block *sb, int wait)
- {
-- int ret = 0;
-+ tid_t target;
-
- trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
- sb->s_dirt = 0;
-- if (wait)
-- ret = ext4_force_commit(sb);
-- else
-- jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL);
-- return ret;
-+ if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, &target)) {
-+ if (wait)
-+ jbd2_log_wait_commit(EXT4_SB(sb)->s_journal, target);
-+ }
-+ return 0;
- }
-
- /*
-diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
-index e5eaa62..e3fe991 100644
---- a/fs/fs-writeback.c
-+++ b/fs/fs-writeback.c
-@@ -274,6 +274,7 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
- int ret;
-
- BUG_ON(inode->i_state & I_SYNC);
-+ WARN_ON(inode->i_state & I_NEW);
-
- /* Set I_SYNC, reset I_DIRTY */
- dirty = inode->i_state & I_DIRTY;
-@@ -298,6 +299,7 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
- }
-
- spin_lock(&inode_lock);
-+ WARN_ON(inode->i_state & I_NEW);
- inode->i_state &= ~I_SYNC;
- if (!(inode->i_state & I_FREEING)) {
- if (!(inode->i_state & I_DIRTY) &&
-@@ -470,6 +472,11 @@ void generic_sync_sb_inodes(struct super_block *sb,
- break;
- }
-
-+ if (inode->i_state & I_NEW) {
-+ requeue_io(inode);
-+ continue;
-+ }
-+
- if (wbc->nonblocking && bdi_write_congested(bdi)) {
- wbc->encountered_congestion = 1;
- if (!sb_is_blkdev_sb(sb))
-@@ -531,7 +538,7 @@ void generic_sync_sb_inodes(struct super_block *sb,
- list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
- struct address_space *mapping;
-
-- if (inode->i_state & (I_FREEING|I_WILL_FREE))
-+ if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW))
- continue;
- mapping = inode->i_mapping;
- if (mapping->nrpages == 0)
-diff --git a/fs/inode.c b/fs/inode.c
-index 0487ddb..7b2acc1 100644
---- a/fs/inode.c
-+++ b/fs/inode.c
-@@ -339,6 +339,7 @@ static int invalidate_list(struct list_head *head, struct list_head *dispose)
- invalidate_inode_buffers(inode);
- if (!atomic_read(&inode->i_count)) {
- list_move(&inode->i_list, dispose);
-+ WARN_ON(inode->i_state & I_NEW);
- inode->i_state |= I_FREEING;
- count++;
- continue;
-@@ -440,6 +441,7 @@ static void prune_icache(int nr_to_scan)
- continue;
- }
- list_move(&inode->i_list, &freeable);
-+ WARN_ON(inode->i_state & I_NEW);
- inode->i_state |= I_FREEING;
- nr_pruned++;
- }
-@@ -595,6 +597,7 @@ void unlock_new_inode(struct inode *inode)
- * just created it (so there can be no old holders
- * that haven't tested I_LOCK).
- */
-+ WARN_ON((inode->i_state & (I_LOCK|I_NEW)) != (I_LOCK|I_NEW));
- inode->i_state &= ~(I_LOCK|I_NEW);
- wake_up_inode(inode);
- }
-@@ -1041,6 +1044,7 @@ void generic_delete_inode(struct inode *inode)
-
- list_del_init(&inode->i_list);
- list_del_init(&inode->i_sb_list);
-+ WARN_ON(inode->i_state & I_NEW);
- inode->i_state |= I_FREEING;
- inodes_stat.nr_inodes--;
- spin_unlock(&inode_lock);
-@@ -1082,16 +1086,19 @@ static void generic_forget_inode(struct inode *inode)
- spin_unlock(&inode_lock);
- return;
- }
-+ WARN_ON(inode->i_state & I_NEW);
- inode->i_state |= I_WILL_FREE;
- spin_unlock(&inode_lock);
- write_inode_now(inode, 1);
- spin_lock(&inode_lock);
-+ WARN_ON(inode->i_state & I_NEW);
- inode->i_state &= ~I_WILL_FREE;
- inodes_stat.nr_unused--;
- hlist_del_init(&inode->i_hash);
- }
- list_del_init(&inode->i_list);
- list_del_init(&inode->i_sb_list);
-+ WARN_ON(inode->i_state & I_NEW);
- inode->i_state |= I_FREEING;
- inodes_stat.nr_inodes--;
- spin_unlock(&inode_lock);
-diff --git a/fs/inotify.c b/fs/inotify.c
-index dae3f28..331f2e8 100644
---- a/fs/inotify.c
-+++ b/fs/inotify.c
-@@ -156,7 +156,7 @@ static int inotify_handle_get_wd(struct inotify_handle *ih,
- int ret;
-
- do {
-- if (unlikely(!idr_pre_get(&ih->idr, GFP_KERNEL)))
-+ if (unlikely(!idr_pre_get(&ih->idr, GFP_NOFS)))
- return -ENOSPC;
- ret = idr_get_new_above(&ih->idr, watch, ih->last_wd+1, &watch->wd);
- } while (ret == -EAGAIN);
-diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
-index e70d657..a8fb64d 100644
---- a/fs/jbd2/journal.c
-+++ b/fs/jbd2/journal.c
-@@ -430,7 +430,7 @@ int __jbd2_log_space_left(journal_t *journal)
- }
-
- /*
-- * Called under j_state_lock. Returns true if a transaction was started.
-+ * Called under j_state_lock. Returns true if a transaction commit was started.
- */
- int __jbd2_log_start_commit(journal_t *journal, tid_t target)
- {
-@@ -498,7 +498,8 @@ int jbd2_journal_force_commit_nested(journal_t *journal)
-
- /*
- * Start a commit of the current running transaction (if any). Returns true
-- * if a transaction was started, and fills its tid in at *ptid
-+ * if a transaction is going to be committed (or is currently already
-+ * committing), and fills its tid in at *ptid
- */
- int jbd2_journal_start_commit(journal_t *journal, tid_t *ptid)
- {
-@@ -508,15 +509,19 @@ int jbd2_journal_start_commit(journal_t *journal, tid_t *ptid)
- if (journal->j_running_transaction) {
- tid_t tid = journal->j_running_transaction->t_tid;
-
-- ret = __jbd2_log_start_commit(journal, tid);
-- if (ret && ptid)
-+ __jbd2_log_start_commit(journal, tid);
-+ /* There's a running transaction and we've just made sure
-+ * it's commit has been scheduled. */
-+ if (ptid)
- *ptid = tid;
-- } else if (journal->j_committing_transaction && ptid) {
-+ ret = 1;
-+ } else if (journal->j_committing_transaction) {
- /*
- * If ext3_write_super() recently started a commit, then we
- * have to wait for completion of that transaction
- */
-- *ptid = journal->j_committing_transaction->t_tid;
-+ if (ptid)
-+ *ptid = journal->j_committing_transaction->t_tid;
- ret = 1;
- }
- spin_unlock(&journal->j_state_lock);
-diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
-index 39b7805..89f63ba 100644
---- a/fs/jbd2/transaction.c
-+++ b/fs/jbd2/transaction.c
-@@ -2050,26 +2050,46 @@ done:
- }
-
- /*
-- * This function must be called when inode is journaled in ordered mode
-- * before truncation happens. It starts writeout of truncated part in
-- * case it is in the committing transaction so that we stand to ordered
-- * mode consistency guarantees.
-+ * File truncate and transaction commit interact with each other in a
-+ * non-trivial way. If a transaction writing data block A is
-+ * committing, we cannot discard the data by truncate until we have
-+ * written them. Otherwise if we crashed after the transaction with
-+ * write has committed but before the transaction with truncate has
-+ * committed, we could see stale data in block A. This function is a
-+ * helper to solve this problem. It starts writeout of the truncated
-+ * part in case it is in the committing transaction.
-+ *
-+ * Filesystem code must call this function when inode is journaled in
-+ * ordered mode before truncation happens and after the inode has been
-+ * placed on orphan list with the new inode size. The second condition
-+ * avoids the race that someone writes new data and we start
-+ * committing the transaction after this function has been called but
-+ * before a transaction for truncate is started (and furthermore it
-+ * allows us to optimize the case where the addition to orphan list
-+ * happens in the same transaction as write --- we don't have to write
-+ * any data in such case).
- */
--int jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode,
-+int jbd2_journal_begin_ordered_truncate(journal_t *journal,
-+ struct jbd2_inode *jinode,
- loff_t new_size)
- {
-- journal_t *journal;
-- transaction_t *commit_trans;
-+ transaction_t *inode_trans, *commit_trans;
- int ret = 0;
-
-- if (!inode->i_transaction && !inode->i_next_transaction)
-+ /* This is a quick check to avoid locking if not necessary */
-+ if (!jinode->i_transaction)
- goto out;
-- journal = inode->i_transaction->t_journal;
-+ /* Locks are here just to force reading of recent values, it is
-+ * enough that the transaction was not committing before we started
-+ * a transaction adding the inode to orphan list */
- spin_lock(&journal->j_state_lock);
- commit_trans = journal->j_committing_transaction;
- spin_unlock(&journal->j_state_lock);
-- if (inode->i_transaction == commit_trans) {
-- ret = filemap_fdatawrite_range(inode->i_vfs_inode->i_mapping,
-+ spin_lock(&journal->j_list_lock);
-+ inode_trans = jinode->i_transaction;
-+ spin_unlock(&journal->j_list_lock);
-+ if (inode_trans == commit_trans) {
-+ ret = filemap_fdatawrite_range(jinode->i_vfs_inode->i_mapping,
- new_size, LLONG_MAX);
- if (ret)
- jbd2_journal_abort(journal, ret);
-diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
-index 6ca08ad..1fc1e92 100644
---- a/fs/jffs2/readinode.c
-+++ b/fs/jffs2/readinode.c
-@@ -220,7 +220,7 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
- struct jffs2_tmp_dnode_info *tn)
- {
- uint32_t fn_end = tn->fn->ofs + tn->fn->size;
-- struct jffs2_tmp_dnode_info *this;
-+ struct jffs2_tmp_dnode_info *this, *ptn;
-
- dbg_readinode("insert fragment %#04x-%#04x, ver %u at %08x\n", tn->fn->ofs, fn_end, tn->version, ref_offset(tn->fn->raw));
-
-@@ -251,11 +251,18 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
- if (this) {
- /* If the node is coincident with another at a lower address,
- back up until the other node is found. It may be relevant */
-- while (this->overlapped)
-- this = tn_prev(this);
--
-- /* First node should never be marked overlapped */
-- BUG_ON(!this);
-+ while (this->overlapped) {
-+ ptn = tn_prev(this);
-+ if (!ptn) {
-+ /*
-+ * We killed a node which set the overlapped
-+ * flags during the scan. Fix it up.
-+ */
-+ this->overlapped = 0;
-+ break;
-+ }
-+ this = ptn;
-+ }
- dbg_readinode("'this' found %#04x-%#04x (%s)\n", this->fn->ofs, this->fn->ofs + this->fn->size, this->fn ? "data" : "hole");
- }
-
-@@ -360,7 +367,17 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
- }
- if (!this->overlapped)
- break;
-- this = tn_prev(this);
-+
-+ ptn = tn_prev(this);
-+ if (!ptn) {
-+ /*
-+ * We killed a node which set the overlapped
-+ * flags during the scan. Fix it up.
-+ */
-+ this->overlapped = 0;
-+ break;
-+ }
-+ this = ptn;
- }
- }
-
-@@ -456,8 +473,15 @@ static int jffs2_build_inode_fragtree(struct jffs2_sb_info *c,
- eat_last(&rii->tn_root, &last->rb);
- ver_insert(&ver_root, last);
-
-- if (unlikely(last->overlapped))
-- continue;
-+ if (unlikely(last->overlapped)) {
-+ if (pen)
-+ continue;
-+ /*
-+ * We killed a node which set the overlapped
-+ * flags during the scan. Fix it up.
-+ */
-+ last->overlapped = 0;
-+ }
-
- /* Now we have a bunch of nodes in reverse version
- order, in the tree at ver_root. Most of the time,
-diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
-index d4d14e9..3657926 100644
---- a/fs/ocfs2/journal.h
-+++ b/fs/ocfs2/journal.h
-@@ -445,8 +445,10 @@ static inline int ocfs2_jbd2_file_inode(handle_t *handle, struct inode *inode)
- static inline int ocfs2_begin_ordered_truncate(struct inode *inode,
- loff_t new_size)
- {
-- return jbd2_journal_begin_ordered_truncate(&OCFS2_I(inode)->ip_jinode,
-- new_size);
-+ return jbd2_journal_begin_ordered_truncate(
-+ OCFS2_SB(inode->i_sb)->journal->j_journal,
-+ &OCFS2_I(inode)->ip_jinode,
-+ new_size);
- }
-
- #endif /* OCFS2_JOURNAL_H */
-diff --git a/fs/pipe.c b/fs/pipe.c
-index 47b34d2..01f8b78 100644
---- a/fs/pipe.c
-+++ b/fs/pipe.c
-@@ -699,12 +699,12 @@ pipe_rdwr_fasync(int fd, struct file *filp, int on)
- int retval;
-
- mutex_lock(&inode->i_mutex);
--
- retval = fasync_helper(fd, filp, on, &pipe->fasync_readers);
--
-- if (retval >= 0)
-+ if (retval >= 0) {
- retval = fasync_helper(fd, filp, on, &pipe->fasync_writers);
--
-+ if (retval < 0) /* this can happen only if on == T */
-+ fasync_helper(-1, filp, 0, &pipe->fasync_readers);
-+ }
- mutex_unlock(&inode->i_mutex);
-
- if (retval < 0)
-diff --git a/fs/proc/page.c b/fs/proc/page.c
-index 767d95a..e998383 100644
---- a/fs/proc/page.c
-+++ b/fs/proc/page.c
-@@ -80,7 +80,7 @@ static const struct file_operations proc_kpagecount_operations = {
- #define KPF_RECLAIM 9
- #define KPF_BUDDY 10
-
--#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
-+#define kpf_copy_bit(flags, dstpos, srcpos) (((flags >> srcpos) & 1) << dstpos)
-
- static ssize_t kpageflags_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-@@ -107,7 +107,7 @@ static ssize_t kpageflags_read(struct file *file, char __user *buf,
- else
- kflags = ppage->flags;
-
-- uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
-+ uflags = kpf_copy_bit(kflags, KPF_LOCKED, PG_locked) |
- kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
- kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
- kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |
-diff --git a/fs/seq_file.c b/fs/seq_file.c
-index 3404ec8..a3a61f9 100644
---- a/fs/seq_file.c
-+++ b/fs/seq_file.c
-@@ -48,8 +48,16 @@ int seq_open(struct file *file, const struct seq_operations *op)
- */
- file->f_version = 0;
-
-- /* SEQ files support lseek, but not pread/pwrite */
-- file->f_mode &= ~(FMODE_PREAD | FMODE_PWRITE);
-+ /*
-+ * seq_files support lseek() and pread(). They do not implement
-+ * write() at all, but we clear FMODE_PWRITE here for historical
-+ * reasons.
-+ *
-+ * If a client of seq_files a) implements file.write() and b) wishes to
-+ * support pwrite() then that client will need to implement its own
-+ * file.open() which calls seq_open() and then sets FMODE_PWRITE.
-+ */
-+ file->f_mode &= ~FMODE_PWRITE;
- return 0;
- }
- EXPORT_SYMBOL(seq_open);
-@@ -131,6 +139,22 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
- int err = 0;
-
- mutex_lock(&m->lock);
-+
-+ /* Don't assume *ppos is where we left it */
-+ if (unlikely(*ppos != m->read_pos)) {
-+ m->read_pos = *ppos;
-+ while ((err = traverse(m, *ppos)) == -EAGAIN)
-+ ;
-+ if (err) {
-+ /* With prejudice... */
-+ m->read_pos = 0;
-+ m->version = 0;
-+ m->index = 0;
-+ m->count = 0;
-+ goto Done;
-+ }
-+ }
-+
- /*
- * seq_file->op->..m_start/m_stop/m_next may do special actions
- * or optimisations based on the file->f_version, so we want to
-@@ -230,8 +254,10 @@ Fill:
- Done:
- if (!copied)
- copied = err;
-- else
-+ else {
- *ppos += copied;
-+ m->read_pos += copied;
-+ }
- file->f_version = m->version;
- mutex_unlock(&m->lock);
- return copied;
-@@ -266,16 +292,18 @@ loff_t seq_lseek(struct file *file, loff_t offset, int origin)
- if (offset < 0)
- break;
- retval = offset;
-- if (offset != file->f_pos) {
-+ if (offset != m->read_pos) {
- while ((retval=traverse(m, offset)) == -EAGAIN)
- ;
- if (retval) {
- /* with extreme prejudice... */
- file->f_pos = 0;
-+ m->read_pos = 0;
- m->version = 0;
- m->index = 0;
- m->count = 0;
- } else {
-+ m->read_pos = offset;
- retval = file->f_pos = offset;
- }
- }
-diff --git a/fs/timerfd.c b/fs/timerfd.c
-index 6a123b8..b042bd7 100644
---- a/fs/timerfd.c
-+++ b/fs/timerfd.c
-@@ -186,10 +186,9 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
- BUILD_BUG_ON(TFD_CLOEXEC != O_CLOEXEC);
- BUILD_BUG_ON(TFD_NONBLOCK != O_NONBLOCK);
-
-- if (flags & ~(TFD_CLOEXEC | TFD_NONBLOCK))
-- return -EINVAL;
-- if (clockid != CLOCK_MONOTONIC &&
-- clockid != CLOCK_REALTIME)
-+ if ((flags & ~TFD_CREATE_FLAGS) ||
-+ (clockid != CLOCK_MONOTONIC &&
-+ clockid != CLOCK_REALTIME))
- return -EINVAL;
-
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
-@@ -201,7 +200,7 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
- hrtimer_init(&ctx->tmr, clockid, HRTIMER_MODE_ABS);
-
- ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx,
-- flags & (O_CLOEXEC | O_NONBLOCK));
-+ flags & TFD_SHARED_FCNTL_FLAGS);
- if (ufd < 0)
- kfree(ctx);
-
-@@ -219,7 +218,8 @@ SYSCALL_DEFINE4(timerfd_settime, int, ufd, int, flags,
- if (copy_from_user(&ktmr, utmr, sizeof(ktmr)))
- return -EFAULT;
-
-- if (!timespec_valid(&ktmr.it_value) ||
-+ if ((flags & ~TFD_SETTIME_FLAGS) ||
-+ !timespec_valid(&ktmr.it_value) ||
- !timespec_valid(&ktmr.it_interval))
- return -EINVAL;
-
-diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
-index 152b34d..4986239 100644
---- a/include/drm/i915_drm.h
-+++ b/include/drm/i915_drm.h
-@@ -177,6 +177,8 @@ typedef struct _drm_i915_sarea {
- #define DRM_IOCTL_I915_SET_VBLANK_PIPE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
- #define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
- #define DRM_IOCTL_I915_VBLANK_SWAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t)
-+#define DRM_IOCTL_I915_GEM_INIT DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_INIT, struct drm_i915_gem_init)
-+#define DRM_IOCTL_I915_GEM_EXECBUFFER DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER, struct drm_i915_gem_execbuffer)
- #define DRM_IOCTL_I915_GEM_PIN DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_PIN, struct drm_i915_gem_pin)
- #define DRM_IOCTL_I915_GEM_UNPIN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin)
- #define DRM_IOCTL_I915_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy)
-diff --git a/include/linux/fs.h b/include/linux/fs.h
-index 4b91924..7e413d3 100644
---- a/include/linux/fs.h
-+++ b/include/linux/fs.h
-@@ -63,24 +63,30 @@ extern int dir_notify_enable;
- #define MAY_ACCESS 16
- #define MAY_OPEN 32
-
-+/*
-+ * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond
-+ * to O_WRONLY and O_RDWR via the strange trick in __dentry_open()
-+ */
-+
- /* file is open for reading */
- #define FMODE_READ ((__force fmode_t)1)
- /* file is open for writing */
- #define FMODE_WRITE ((__force fmode_t)2)
- /* file is seekable */
- #define FMODE_LSEEK ((__force fmode_t)4)
--/* file can be accessed using pread/pwrite */
-+/* file can be accessed using pread */
- #define FMODE_PREAD ((__force fmode_t)8)
--#define FMODE_PWRITE FMODE_PREAD /* These go hand in hand */
-+/* file can be accessed using pwrite */
-+#define FMODE_PWRITE ((__force fmode_t)16)
- /* File is opened for execution with sys_execve / sys_uselib */
--#define FMODE_EXEC ((__force fmode_t)16)
-+#define FMODE_EXEC ((__force fmode_t)32)
- /* File is opened with O_NDELAY (only set for block devices) */
--#define FMODE_NDELAY ((__force fmode_t)32)
-+#define FMODE_NDELAY ((__force fmode_t)64)
- /* File is opened with O_EXCL (only set for block devices) */
--#define FMODE_EXCL ((__force fmode_t)64)
-+#define FMODE_EXCL ((__force fmode_t)128)
- /* File is opened using open(.., 3, ..) and is writeable only for ioctls
- (specialy hack for floppy.c) */
--#define FMODE_WRITE_IOCTL ((__force fmode_t)128)
-+#define FMODE_WRITE_IOCTL ((__force fmode_t)256)
-
- #define RW_MASK 1
- #define RWA_MASK 2
-diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
-index 7c31d67..56593cb 100644
---- a/include/linux/jbd2.h
-+++ b/include/linux/jbd2.h
-@@ -1087,7 +1087,8 @@ extern int jbd2_journal_clear_err (journal_t *);
- extern int jbd2_journal_bmap(journal_t *, unsigned long, unsigned long long *);
- extern int jbd2_journal_force_commit(journal_t *);
- extern int jbd2_journal_file_inode(handle_t *handle, struct jbd2_inode *inode);
--extern int jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode, loff_t new_size);
-+extern int jbd2_journal_begin_ordered_truncate(journal_t *journal,
-+ struct jbd2_inode *inode, loff_t new_size);
- extern void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode);
- extern void jbd2_journal_release_jbd_inode(journal_t *journal, struct jbd2_inode *jinode);
-
-diff --git a/include/linux/mm.h b/include/linux/mm.h
-index 86b836d..5c7f5f5 100644
---- a/include/linux/mm.h
-+++ b/include/linux/mm.h
-@@ -1027,10 +1027,23 @@ extern void free_bootmem_with_active_regions(int nid,
- typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
- extern void work_with_active_regions(int nid, work_fn_t work_fn, void *data);
- extern void sparse_memory_present_with_active_regions(int nid);
--#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
--extern int early_pfn_to_nid(unsigned long pfn);
--#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
- #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
-+
-+#if !defined(CONFIG_ARCH_POPULATES_NODE_MAP) && \
-+ !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID)
-+static inline int __early_pfn_to_nid(unsigned long pfn)
-+{
-+ return 0;
-+}
-+#else
-+/* please see mm/page_alloc.c */
-+extern int __meminit early_pfn_to_nid(unsigned long pfn);
-+#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
-+/* there is a per-arch backend function. */
-+extern int __meminit __early_pfn_to_nid(unsigned long pfn);
-+#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
-+#endif
-+
- extern void set_dma_reserve(unsigned long new_dma_reserve);
- extern void memmap_init_zone(unsigned long, int, unsigned long,
- unsigned long, enum memmap_context);
-diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
-index 35a7b5e..796f1e5 100644
---- a/include/linux/mmzone.h
-+++ b/include/linux/mmzone.h
-@@ -1067,7 +1067,7 @@ void sparse_init(void);
- #endif /* CONFIG_SPARSEMEM */
-
- #ifdef CONFIG_NODES_SPAN_OTHER_NODES
--#define early_pfn_in_nid(pfn, nid) (early_pfn_to_nid(pfn) == (nid))
-+bool early_pfn_in_nid(unsigned long pfn, int nid);
- #else
- #define early_pfn_in_nid(pfn, nid) (1)
- #endif
-diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
-index c525afc..d81bc13 100644
---- a/include/linux/pci_ids.h
-+++ b/include/linux/pci_ids.h
-@@ -1445,6 +1445,7 @@
- #define PCI_DEVICE_ID_DIGI_DF_M_E 0x0071
- #define PCI_DEVICE_ID_DIGI_DF_M_IOM2_A 0x0072
- #define PCI_DEVICE_ID_DIGI_DF_M_A 0x0073
-+#define PCI_DEVICE_ID_DIGI_NEO_8 0x00B1
- #define PCI_DEVICE_ID_NEO_2DB9 0x00C8
- #define PCI_DEVICE_ID_NEO_2DB9PRI 0x00C9
- #define PCI_DEVICE_ID_NEO_2RJ45 0x00CA
-@@ -2317,6 +2318,9 @@
- #define PCI_DEVICE_ID_INTEL_82378 0x0484
- #define PCI_DEVICE_ID_INTEL_I960 0x0960
- #define PCI_DEVICE_ID_INTEL_I960RM 0x0962
-+#define PCI_DEVICE_ID_INTEL_8257X_SOL 0x1062
-+#define PCI_DEVICE_ID_INTEL_82573E_SOL 0x1085
-+#define PCI_DEVICE_ID_INTEL_82573L_SOL 0x108F
- #define PCI_DEVICE_ID_INTEL_82815_MC 0x1130
- #define PCI_DEVICE_ID_INTEL_82815_CGC 0x1132
- #define PCI_DEVICE_ID_INTEL_82092AA_0 0x1221
-diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
-index dc50bcc..cbb25fc 100644
---- a/include/linux/seq_file.h
-+++ b/include/linux/seq_file.h
-@@ -19,6 +19,7 @@ struct seq_file {
- size_t from;
- size_t count;
- loff_t index;
-+ loff_t read_pos;
- u64 version;
- struct mutex lock;
- const struct seq_operations *op;
-diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
-index 4e4f127..a551e97 100644
---- a/include/linux/serial_core.h
-+++ b/include/linux/serial_core.h
-@@ -288,6 +288,7 @@ struct uart_port {
- #define UPF_HARDPPS_CD ((__force upf_t) (1 << 11))
- #define UPF_LOW_LATENCY ((__force upf_t) (1 << 13))
- #define UPF_BUGGY_UART ((__force upf_t) (1 << 14))
-+#define UPF_NO_TXEN_TEST ((__force upf_t) (1 << 15))
- #define UPF_MAGIC_MULTIPLIER ((__force upf_t) (1 << 16))
- #define UPF_CONS_FLOW ((__force upf_t) (1 << 23))
- #define UPF_SHARE_IRQ ((__force upf_t) (1 << 24))
-diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
-index 2725f4e..37af3d5 100644
---- a/include/linux/skbuff.h
-+++ b/include/linux/skbuff.h
-@@ -411,15 +411,6 @@ extern void skb_over_panic(struct sk_buff *skb, int len,
- void *here);
- extern void skb_under_panic(struct sk_buff *skb, int len,
- void *here);
--extern void skb_truesize_bug(struct sk_buff *skb);
--
--static inline void skb_truesize_check(struct sk_buff *skb)
--{
-- int len = sizeof(struct sk_buff) + skb->len;
--
-- if (unlikely((int)skb->truesize < len))
-- skb_truesize_bug(skb);
--}
-
- extern int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
- int getfrag(void *from, char *to, int offset,
-diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h
-index 86cb050..2d07929 100644
---- a/include/linux/timerfd.h
-+++ b/include/linux/timerfd.h
-@@ -11,13 +11,21 @@
- /* For O_CLOEXEC and O_NONBLOCK */
- #include <linux/fcntl.h>
-
--/* Flags for timerfd_settime. */
-+/*
-+ * CAREFUL: Check include/asm-generic/fcntl.h when defining
-+ * new flags, since they might collide with O_* ones. We want
-+ * to re-use O_* flags that couldn't possibly have a meaning
-+ * from eventfd, in order to leave a free define-space for
-+ * shared O_* flags.
-+ */
- #define TFD_TIMER_ABSTIME (1 << 0)
--
--/* Flags for timerfd_create. */
- #define TFD_CLOEXEC O_CLOEXEC
- #define TFD_NONBLOCK O_NONBLOCK
-
-+#define TFD_SHARED_FCNTL_FLAGS (TFD_CLOEXEC | TFD_NONBLOCK)
-+/* Flags for timerfd_create. */
-+#define TFD_CREATE_FLAGS TFD_SHARED_FCNTL_FLAGS
-+/* Flags for timerfd_settime. */
-+#define TFD_SETTIME_FLAGS TFD_TIMER_ABSTIME
-
- #endif /* _LINUX_TIMERFD_H */
--
-diff --git a/include/net/sock.h b/include/net/sock.h
-index 2f47107..4ae672f 100644
---- a/include/net/sock.h
-+++ b/include/net/sock.h
-@@ -784,7 +784,6 @@ static inline void sk_mem_uncharge(struct sock *sk, int size)
-
- static inline void sk_wmem_free_skb(struct sock *sk, struct sk_buff *skb)
- {
-- skb_truesize_check(skb);
- sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
- sk->sk_wmem_queued -= skb->truesize;
- sk_mem_uncharge(sk, skb->truesize);
-diff --git a/kernel/fork.c b/kernel/fork.c
-index f2c9c60..8f753e5 100644
---- a/kernel/fork.c
-+++ b/kernel/fork.c
-@@ -1176,10 +1176,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
- #endif
- clear_all_latency_tracing(p);
-
-- /* Our parent execution domain becomes current domain
-- These must match for thread signalling to apply */
-- p->parent_exec_id = p->self_exec_id;
--
- /* ok, now we should be set up.. */
- p->exit_signal = (clone_flags & CLONE_THREAD) ? -1 : (clone_flags & CSIGNAL);
- p->pdeath_signal = 0;
-@@ -1217,10 +1213,13 @@ static struct task_struct *copy_process(unsigned long clone_flags,
- set_task_cpu(p, smp_processor_id());
-
- /* CLONE_PARENT re-uses the old parent */
-- if (clone_flags & (CLONE_PARENT|CLONE_THREAD))
-+ if (clone_flags & (CLONE_PARENT|CLONE_THREAD)) {
- p->real_parent = current->real_parent;
-- else
-+ p->parent_exec_id = current->parent_exec_id;
-+ } else {
- p->real_parent = current;
-+ p->parent_exec_id = current->self_exec_id;
-+ }
-
- spin_lock(¤t->sighand->siglock);
-
-diff --git a/kernel/seccomp.c b/kernel/seccomp.c
-index ad64fcb..57d4b13 100644
---- a/kernel/seccomp.c
-+++ b/kernel/seccomp.c
-@@ -8,6 +8,7 @@
-
- #include <linux/seccomp.h>
- #include <linux/sched.h>
-+#include <linux/compat.h>
-
- /* #define SECCOMP_DEBUG 1 */
- #define NR_SECCOMP_MODES 1
-@@ -22,7 +23,7 @@ static int mode1_syscalls[] = {
- 0, /* null terminated */
- };
-
--#ifdef TIF_32BIT
-+#ifdef CONFIG_COMPAT
- static int mode1_syscalls_32[] = {
- __NR_seccomp_read_32, __NR_seccomp_write_32, __NR_seccomp_exit_32, __NR_seccomp_sigreturn_32,
- 0, /* null terminated */
-@@ -37,8 +38,8 @@ void __secure_computing(int this_syscall)
- switch (mode) {
- case 1:
- syscall = mode1_syscalls;
--#ifdef TIF_32BIT
-- if (test_thread_flag(TIF_32BIT))
-+#ifdef CONFIG_COMPAT
-+ if (is_compat_task())
- syscall = mode1_syscalls_32;
- #endif
- do {
-diff --git a/kernel/tsacct.c b/kernel/tsacct.c
-index 8ebcd85..5275fba 100644
---- a/kernel/tsacct.c
-+++ b/kernel/tsacct.c
-@@ -120,8 +120,10 @@ void acct_update_integrals(struct task_struct *tsk)
- if (likely(tsk->mm)) {
- cputime_t time, dtime;
- struct timeval value;
-+ unsigned long flags;
- u64 delta;
-
-+ local_irq_save(flags);
- time = tsk->stime + tsk->utime;
- dtime = cputime_sub(time, tsk->acct_timexpd);
- jiffies_to_timeval(cputime_to_jiffies(dtime), &value);
-@@ -129,10 +131,12 @@ void acct_update_integrals(struct task_struct *tsk)
- delta = delta * USEC_PER_SEC + value.tv_usec;
-
- if (delta == 0)
-- return;
-+ goto out;
- tsk->acct_timexpd = time;
- tsk->acct_rss_mem1 += delta * get_mm_rss(tsk->mm);
- tsk->acct_vm_mem1 += delta * tsk->mm->total_vm;
-+ out:
-+ local_irq_restore(flags);
- }
- }
-
-diff --git a/mm/page_alloc.c b/mm/page_alloc.c
-index d8ac014..566ee21 100644
---- a/mm/page_alloc.c
-+++ b/mm/page_alloc.c
-@@ -2974,7 +2974,7 @@ static int __meminit next_active_region_index_in_nid(int index, int nid)
- * was used and there are no special requirements, this is a convenient
- * alternative
- */
--int __meminit early_pfn_to_nid(unsigned long pfn)
-+int __meminit __early_pfn_to_nid(unsigned long pfn)
- {
- int i;
-
-@@ -2985,10 +2985,33 @@ int __meminit early_pfn_to_nid(unsigned long pfn)
- if (start_pfn <= pfn && pfn < end_pfn)
- return early_node_map[i].nid;
- }
-+ /* This is a memory hole */
-+ return -1;
-+}
-+#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
-+
-+int __meminit early_pfn_to_nid(unsigned long pfn)
-+{
-+ int nid;
-
-+ nid = __early_pfn_to_nid(pfn);
-+ if (nid >= 0)
-+ return nid;
-+ /* just returns 0 */
- return 0;
- }
--#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
-+
-+#ifdef CONFIG_NODES_SPAN_OTHER_NODES
-+bool __meminit early_pfn_in_nid(unsigned long pfn, int node)
-+{
-+ int nid;
-+
-+ nid = __early_pfn_to_nid(pfn);
-+ if (nid >= 0 && nid != node)
-+ return false;
-+ return true;
-+}
-+#endif
-
- /* Basic iterator support to walk early_node_map[] */
- #define for_each_active_range_index_in_nid(i, nid) \
-diff --git a/mm/vmalloc.c b/mm/vmalloc.c
-index 0380ea5..4172ce4 100644
---- a/mm/vmalloc.c
-+++ b/mm/vmalloc.c
-@@ -323,6 +323,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
- unsigned long addr;
- int purged = 0;
-
-+ BUG_ON(!size);
- BUG_ON(size & ~PAGE_MASK);
-
- va = kmalloc_node(sizeof(struct vmap_area),
-@@ -334,6 +335,9 @@ retry:
- addr = ALIGN(vstart, align);
-
- spin_lock(&vmap_area_lock);
-+ if (addr + size - 1 < addr)
-+ goto overflow;
-+
- /* XXX: could have a last_hole cache */
- n = vmap_area_root.rb_node;
- if (n) {
-@@ -365,6 +369,8 @@ retry:
-
- while (addr + size > first->va_start && addr + size <= vend) {
- addr = ALIGN(first->va_end + PAGE_SIZE, align);
-+ if (addr + size - 1 < addr)
-+ goto overflow;
-
- n = rb_next(&first->rb_node);
- if (n)
-@@ -375,6 +381,7 @@ retry:
- }
- found:
- if (addr + size > vend) {
-+overflow:
- spin_unlock(&vmap_area_lock);
- if (!purged) {
- purge_vmap_area_lazy();
-@@ -476,6 +483,7 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end,
- static DEFINE_SPINLOCK(purge_lock);
- LIST_HEAD(valist);
- struct vmap_area *va;
-+ struct vmap_area *n_va;
- int nr = 0;
-
- /*
-@@ -515,7 +523,7 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end,
-
- if (nr) {
- spin_lock(&vmap_area_lock);
-- list_for_each_entry(va, &valist, purge_list)
-+ list_for_each_entry_safe(va, n_va, &valist, purge_list)
- __free_vmap_area(va);
- spin_unlock(&vmap_area_lock);
- }
-@@ -989,6 +997,8 @@ void __init vmalloc_init(void)
- void unmap_kernel_range(unsigned long addr, unsigned long size)
- {
- unsigned long end = addr + size;
-+
-+ flush_cache_vunmap(addr, end);
- vunmap_page_range(addr, end);
- flush_tlb_kernel_range(addr, end);
- }
-diff --git a/net/core/skbuff.c b/net/core/skbuff.c
-index d61aa52..aa89c30 100644
---- a/net/core/skbuff.c
-+++ b/net/core/skbuff.c
-@@ -143,14 +143,6 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
- BUG();
- }
-
--void skb_truesize_bug(struct sk_buff *skb)
--{
-- WARN(net_ratelimit(), KERN_ERR "SKB BUG: Invalid truesize (%u) "
-- "len=%u, sizeof(sk_buff)=%Zd\n",
-- skb->truesize, skb->len, sizeof(struct sk_buff));
--}
--EXPORT_SYMBOL(skb_truesize_bug);
--
- /* Allocate a new skbuff. We do this ourselves so we can fill in a few
- * 'private' fields and also do memory statistics to find all the
- * [BEEP] leaks.
-diff --git a/net/core/sock.c b/net/core/sock.c
-index a7a0975..1b0f74c 100644
---- a/net/core/sock.c
-+++ b/net/core/sock.c
-@@ -696,7 +696,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
- if (len < 0)
- return -EINVAL;
-
-- v.val = 0;
-+ memset(&v, 0, sizeof(v));
-
- switch(optname) {
- case SO_DEBUG:
-@@ -1137,7 +1137,6 @@ void sock_rfree(struct sk_buff *skb)
- {
- struct sock *sk = skb->sk;
-
-- skb_truesize_check(skb);
- atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
- sk_mem_uncharge(skb->sk, skb->truesize);
- }
-diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
-index d4dc222..0d34372 100644
---- a/scripts/mod/file2alias.c
-+++ b/scripts/mod/file2alias.c
-@@ -210,6 +210,7 @@ static void do_usb_table(void *symval, unsigned long size,
- static int do_hid_entry(const char *filename,
- struct hid_device_id *id, char *alias)
- {
-+ id->bus = TO_NATIVE(id->bus);
- id->vendor = TO_NATIVE(id->vendor);
- id->product = TO_NATIVE(id->product);
-
-diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
-index f58701a..350794a 100644
---- a/security/selinux/netlabel.c
-+++ b/security/selinux/netlabel.c
-@@ -386,11 +386,12 @@ int selinux_netlbl_inode_permission(struct inode *inode, int mask)
- if (!S_ISSOCK(inode->i_mode) ||
- ((mask & (MAY_WRITE | MAY_APPEND)) == 0))
- return 0;
--
- sock = SOCKET_I(inode);
- sk = sock->sk;
-+ if (sk == NULL)
-+ return 0;
- sksec = sk->sk_security;
-- if (sksec->nlbl_state != NLBL_REQUIRE)
-+ if (sksec == NULL || sksec->nlbl_state != NLBL_REQUIRE)
- return 0;
-
- local_bh_disable();
-@@ -490,8 +491,10 @@ int selinux_netlbl_socket_setsockopt(struct socket *sock,
- lock_sock(sk);
- rc = netlbl_sock_getattr(sk, &secattr);
- release_sock(sk);
-- if (rc == 0 && secattr.flags != NETLBL_SECATTR_NONE)
-+ if (rc == 0)
- rc = -EACCES;
-+ else if (rc == -ENOMSG)
-+ rc = 0;
- netlbl_secattr_destroy(&secattr);
- }
-
-diff --git a/sound/core/oss/rate.c b/sound/core/oss/rate.c
-index a466443..2fa9299 100644
---- a/sound/core/oss/rate.c
-+++ b/sound/core/oss/rate.c
-@@ -157,7 +157,7 @@ static void resample_shrink(struct snd_pcm_plugin *plugin,
- while (dst_frames1 > 0) {
- S1 = S2;
- if (src_frames1-- > 0) {
-- S1 = *src;
-+ S2 = *src;
- src += src_step;
- }
- if (pos & ~R_MASK) {
-diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
-index 3f00ddf..c7c54e7 100644
---- a/sound/pci/aw2/aw2-alsa.c
-+++ b/sound/pci/aw2/aw2-alsa.c
-@@ -165,7 +165,7 @@ module_param_array(enable, bool, NULL, 0444);
- MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard.");
-
- static struct pci_device_id snd_aw2_ids[] = {
-- {PCI_VENDOR_ID_SAA7146, PCI_DEVICE_ID_SAA7146, PCI_ANY_ID, PCI_ANY_ID,
-+ {PCI_VENDOR_ID_SAA7146, PCI_DEVICE_ID_SAA7146, 0, 0,
- 0, 0, 0},
- {0}
- };
-diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
-index 4c8961a..7123a6e 100644
---- a/sound/pci/hda/patch_realtek.c
-+++ b/sound/pci/hda/patch_realtek.c
-@@ -6778,6 +6778,7 @@ static int patch_alc882(struct hda_codec *codec)
- case 0x106b2800: /* AppleTV */
- board_config = ALC885_IMAC24;
- break;
-+ case 0x106b00a0: /* MacBookPro3,1 - Another revision */
- case 0x106b00a1: /* Macbook (might be wrong - PCI SSID?) */
- case 0x106b00a4: /* MacbookPro4,1 */
- case 0x106b2c00: /* Macbook Pro rev3 */
-diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
-index 1f9fcfe..96f4c8d 100644
---- a/sound/pci/hda/patch_sigmatel.c
-+++ b/sound/pci/hda/patch_sigmatel.c
-@@ -4668,7 +4668,7 @@ again:
- case STAC_DELL_M4_3:
- spec->num_dmics = 1;
- spec->num_smuxes = 0;
-- spec->num_dmuxes = 0;
-+ spec->num_dmuxes = 1;
- break;
- default:
- spec->num_dmics = STAC92HD71BXX_NUM_DMICS;
-diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
-index a962166..d74cc25 100644
---- a/sound/pci/oxygen/virtuoso.c
-+++ b/sound/pci/oxygen/virtuoso.c
-@@ -26,7 +26,7 @@
- * SPI 0 -> 1st PCM1796 (front)
- * SPI 1 -> 2nd PCM1796 (surround)
- * SPI 2 -> 3rd PCM1796 (center/LFE)
-- * SPI 4 -> 4th PCM1796 (back) and EEPROM self-destruct (do not use!)
-+ * SPI 4 -> 4th PCM1796 (back)
- *
- * GPIO 2 -> M0 of CS5381
- * GPIO 3 -> M1 of CS5381
-@@ -207,12 +207,6 @@ static void xonar_gpio_changed(struct oxygen *chip);
- static inline void pcm1796_write_spi(struct oxygen *chip, unsigned int codec,
- u8 reg, u8 value)
- {
-- /*
-- * We don't want to do writes on SPI 4 because the EEPROM, which shares
-- * the same pin, might get confused and broken. We'd better take care
-- * that the driver works with the default register values ...
-- */
--#if 0
- /* maps ALSA channel pair number to SPI output */
- static const u8 codec_map[4] = {
- 0, 1, 2, 4
-@@ -223,7 +217,6 @@ static inline void pcm1796_write_spi(struct oxygen *chip, unsigned int codec,
- (codec_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
- OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
- (reg << 8) | value);
--#endif
- }
-
- static inline void pcm1796_write_i2c(struct oxygen *chip, unsigned int codec,
-@@ -757,9 +750,6 @@ static const DECLARE_TLV_DB_SCALE(cs4362a_db_scale, -12700, 100, 0);
-
- static int xonar_d2_control_filter(struct snd_kcontrol_new *template)
- {
-- if (!strncmp(template->name, "Master Playback ", 16))
-- /* disable volume/mute because they would require SPI writes */
-- return 1;
- if (!strncmp(template->name, "CD Capture ", 11))
- /* CD in is actually connected to the video in pin */
- template->private_value ^= AC97_CD ^ AC97_VIDEO;
-@@ -850,8 +840,9 @@ static const struct oxygen_model model_xonar_d2 = {
- .dac_volume_min = 0x0f,
- .dac_volume_max = 0xff,
- .misc_flags = OXYGEN_MISC_MIDI,
-- .function_flags = OXYGEN_FUNCTION_SPI,
-- .dac_i2s_format = OXYGEN_I2S_FORMAT_I2S,
-+ .function_flags = OXYGEN_FUNCTION_SPI |
-+ OXYGEN_FUNCTION_ENABLE_SPI_4_5,
-+ .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
- .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
- };
-
-diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
-index f44c153..a51190e 100644
---- a/sound/usb/usbaudio.c
-+++ b/sound/usb/usbaudio.c
-@@ -2524,7 +2524,6 @@ static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioform
- * build the rate table and bitmap flags
- */
- int r, idx;
-- unsigned int nonzero_rates = 0;
-
- fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL);
- if (fp->rate_table == NULL) {
-@@ -2532,24 +2531,27 @@ static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioform
- return -1;
- }
-
-- fp->nr_rates = nr_rates;
-- fp->rate_min = fp->rate_max = combine_triple(&fmt[8]);
-+ fp->nr_rates = 0;
-+ fp->rate_min = fp->rate_max = 0;
- for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) {
- unsigned int rate = combine_triple(&fmt[idx]);
-+ if (!rate)
-+ continue;
- /* C-Media CM6501 mislabels its 96 kHz altsetting */
- if (rate == 48000 && nr_rates == 1 &&
-- chip->usb_id == USB_ID(0x0d8c, 0x0201) &&
-+ (chip->usb_id == USB_ID(0x0d8c, 0x0201) ||
-+ chip->usb_id == USB_ID(0x0d8c, 0x0102)) &&
- fp->altsetting == 5 && fp->maxpacksize == 392)
- rate = 96000;
-- fp->rate_table[r] = rate;
-- nonzero_rates |= rate;
-- if (rate < fp->rate_min)
-+ fp->rate_table[fp->nr_rates] = rate;
-+ if (!fp->rate_min || rate < fp->rate_min)
- fp->rate_min = rate;
-- else if (rate > fp->rate_max)
-+ if (!fp->rate_max || rate > fp->rate_max)
- fp->rate_max = rate;
- fp->rates |= snd_pcm_rate_to_rate_bit(rate);
-+ fp->nr_rates++;
- }
-- if (!nonzero_rates) {
-+ if (!fp->nr_rates) {
- hwc_debug("All rates were zero. Skipping format!\n");
- return -1;
- }
-diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c
-index 5962e4b..343f896 100644
---- a/sound/usb/usbmidi.c
-+++ b/sound/usb/usbmidi.c
-@@ -1628,6 +1628,7 @@ static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi* umidi,
- }
-
- ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-+ ep_info.out_interval = 0;
- ep_info.out_cables = endpoint->out_cables & 0x5555;
- err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, &umidi->endpoints[0]);
- if (err < 0)
Deleted: hardened/2.6/trunk/2.6.28/1910_ext4-automatically-allocate-delay-allocated-blocks-on-rename.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/1910_ext4-automatically-allocate-delay-allocated-blocks-on-rename.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/1910_ext4-automatically-allocate-delay-allocated-blocks-on-rename.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,50 +0,0 @@
-Added-By: Gordon Malm <gengor@gentoo.org>
-
----
-From: Theodore Ts'o <tytso@mit.edu>
-Date: Tue, 24 Feb 2009 04:05:27 +0000 (-0500)
-Subject: ext4: Automatically allocate delay allocated blocks on rename
-X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftytso%2Fext4.git;a=commitdiff_plain;h=dbc85aa9f11d8c13c15527d43a3def8d7beffdc8
-
-ext4: Automatically allocate delay allocated blocks on rename
-
-When renaming a file such that a link to another inode is overwritten,
-force any delay allocated blocks that to be allocated so that if the
-filesystem is mounted with data=ordered, the data blocks will be
-pushed out to disk along with the journal commit. Many application
-programs expect this, so we do this to avoid zero length files if the
-system crashes unexpectedly.
-
-Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
----
-
-diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
-index cb15900..a9a7581 100644
---- a/fs/ext4/namei.c
-+++ b/fs/ext4/namei.c
-@@ -2357,7 +2357,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *old_inode, *new_inode;
- struct buffer_head *old_bh, *new_bh, *dir_bh;
- struct ext4_dir_entry_2 *old_de, *new_de;
-- int retval;
-+ int retval, force_da_alloc = 0;
-
- old_bh = new_bh = dir_bh = NULL;
-
-@@ -2497,6 +2497,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
- ext4_mark_inode_dirty(handle, new_inode);
- if (!new_inode->i_nlink)
- ext4_orphan_add(handle, new_inode);
-+ force_da_alloc = 1;
- }
- retval = 0;
-
-@@ -2505,6 +2506,8 @@ end_rename:
- brelse(old_bh);
- brelse(new_bh);
- ext4_journal_stop(handle);
-+ if (retval == 0 && force_da_alloc)
-+ ext4_alloc_da_blocks(old_inode);
- return retval;
- }
-
Deleted: hardened/2.6/trunk/2.6.28/1911_ext4-automatically-allocate-delay-allocated-blocks-on-close.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/1911_ext4-automatically-allocate-delay-allocated-blocks-on-close.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/1911_ext4-automatically-allocate-delay-allocated-blocks-on-close.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,61 +0,0 @@
-Added-By: Gordon Malm <gengor@gentoo.org>
-
----
-From: Theodore Ts'o <tytso@mit.edu>
-Date: Tue, 24 Feb 2009 13:21:14 +0000 (-0500)
-Subject: ext4: Automatically allocate delay allocated blocks on close
-X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftytso%2Fext4.git;a=commitdiff_plain;h=6645f8c3bc3cdaa7de4aaa3d34d40c2e8e5f09ae
-
-ext4: Automatically allocate delay allocated blocks on close
-
-When closing a file that had been previously truncated, force any
-delay allocated blocks that to be allocated so that if the filesystem
-is mounted with data=ordered, the data blocks will be pushed out to
-disk along with the journal commit. Many application programs expect
-this, so we do this to avoid zero length files if the system crashes
-unexpectedly.
-
-Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
----
-
-diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
-index ea51c89..234c731 100644
---- a/fs/ext4/ext4.h
-+++ b/fs/ext4/ext4.h
-@@ -269,6 +269,7 @@ static inline __u32 ext4_mask_flags(umode_t mode, __u32 flags)
- #define EXT4_STATE_NEW 0x00000002 /* inode is newly created */
- #define EXT4_STATE_XATTR 0x00000004 /* has in-inode xattrs */
- #define EXT4_STATE_NO_EXPAND 0x00000008 /* No space for expansion */
-+#define EXT4_STATE_DA_ALLOC_CLOSE 0x00000010 /* Alloc DA blks on close */
-
- /* Used to pass group descriptor data when online resize is done */
- struct ext4_new_group_input {
-diff --git a/fs/ext4/file.c b/fs/ext4/file.c
-index f731cb5..06df827 100644
---- a/fs/ext4/file.c
-+++ b/fs/ext4/file.c
-@@ -33,6 +33,10 @@
- */
- static int ext4_release_file(struct inode *inode, struct file *filp)
- {
-+ if (EXT4_I(inode)->i_state & EXT4_STATE_DA_ALLOC_CLOSE) {
-+ ext4_alloc_da_blocks(inode);
-+ EXT4_I(inode)->i_state &= ~EXT4_STATE_DA_ALLOC_CLOSE;
-+ }
- /* if we are the last writer on the inode, drop the block reservation */
- if ((filp->f_mode & FMODE_WRITE) &&
- (atomic_read(&inode->i_writecount) == 1))
-diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
-index ead57ab..666caa9 100644
---- a/fs/ext4/inode.c
-+++ b/fs/ext4/inode.c
-@@ -3871,6 +3871,9 @@ void ext4_truncate(struct inode *inode)
- if (!ext4_can_truncate(inode))
- return;
-
-+ if (inode->i_size == 0)
-+ ei->i_state |= EXT4_STATE_DA_ALLOC_CLOSE;
-+
- if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
- ext4_ext_truncate(inode);
- return;
Deleted: hardened/2.6/trunk/2.6.28/1912_ext4-add-EXT4_IOC_ALLOC_DA_BLKS-ioctl.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/1912_ext4-add-EXT4_IOC_ALLOC_DA_BLKS-ioctl.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/1912_ext4-add-EXT4_IOC_ALLOC_DA_BLKS-ioctl.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,118 +0,0 @@
-Added-By: Gordon Malm <gengor@gentoo.org>
-
----
-From: Theodore Ts'o <tytso@mit.edu>
-Date: Thu, 26 Feb 2009 06:04:07 +0000 (-0500)
-Subject: ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl
-X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftytso%2Fext4.git;a=commitdiff_plain;h=3bf3342f394d72ed2ec7e77b5b39e1b50fad8284
-
-ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl
-
-Add an ioctl which forces all of the delay allocated blocks to be
-allocated. This also provides a function ext4_alloc_da_blocks() which
-will be used by the following commits to force files to be fully
-allocated to preserve application-expected ext3 behaviour.
-
-Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
----
-
-diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
-index 684a063..ea51c89 100644
---- a/fs/ext4/ext4.h
-+++ b/fs/ext4/ext4.h
-@@ -316,7 +316,9 @@ struct ext4_new_group_data {
- #define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
- #define EXT4_IOC_GROUP_ADD _IOW('f', 8, struct ext4_new_group_input)
- #define EXT4_IOC_MIGRATE _IO('f', 9)
-+ /* note ioctl 10 reserved for an early version of the FIEMAP ioctl */
- /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
-+#define EXT4_IOC_ALLOC_DA_BLKS _IO('f', 12)
-
- /*
- * ioctl commands in 32 bit emulation
-@@ -1093,6 +1095,7 @@ extern int ext4_can_truncate(struct inode *inode);
- extern void ext4_truncate(struct inode *);
- extern void ext4_set_inode_flags(struct inode *);
- extern void ext4_get_inode_flags(struct ext4_inode_info *);
-+extern int ext4_alloc_da_blocks(struct inode *inode);
- extern void ext4_set_aops(struct inode *inode);
- extern int ext4_writepage_trans_blocks(struct inode *);
- extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int idxblocks);
-diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
-index c67f46e..ead57ab 100644
---- a/fs/ext4/inode.c
-+++ b/fs/ext4/inode.c
-@@ -2807,6 +2807,48 @@ out:
- return;
- }
-
-+/*
-+ * Force all delayed allocation blocks to be allocated for a given inode.
-+ */
-+int ext4_alloc_da_blocks(struct inode *inode)
-+{
-+ if (!EXT4_I(inode)->i_reserved_data_blocks &&
-+ !EXT4_I(inode)->i_reserved_meta_blocks)
-+ return 0;
-+
-+ /*
-+ * We do something simple for now. The filemap_flush() will
-+ * also start triggering a write of the data blocks, which is
-+ * not strictly speaking necessary (and for users of
-+ * laptop_mode, not even desirable). However, to do otherwise
-+ * would require replicating code paths in:
-+ *
-+ * ext4_da_writepages() ->
-+ * write_cache_pages() ---> (via passed in callback function)
-+ * __mpage_da_writepage() -->
-+ * mpage_add_bh_to_extent()
-+ * mpage_da_map_blocks()
-+ *
-+ * The problem is that write_cache_pages(), located in
-+ * mm/page-writeback.c, marks pages clean in preparation for
-+ * doing I/O, which is not desirable if we're not planning on
-+ * doing I/O at all.
-+ *
-+ * We could call write_cache_pages(), and then redirty all of
-+ * the pages by calling redirty_page_for_writeback() but that
-+ * would be ugly in the extreme. So instead we would need to
-+ * replicate parts of the code in the above functions,
-+ * simplifying them becuase we wouldn't actually intend to
-+ * write out the pages, but rather only collect contiguous
-+ * logical block extents, call the multi-block allocator, and
-+ * then update the buffer heads with the block allocations.
-+ *
-+ * For now, though, we'll cheat by calling filemap_flush(),
-+ * which will map the blocks, and start the I/O, but not
-+ * actually wait for the I/O to complete.
-+ */
-+ return filemap_flush(inode->i_mapping);
-+}
-
- /*
- * bmap() is special. It gets used by applications such as lilo and by
-diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
-index 22dd29f..91e75f7 100644
---- a/fs/ext4/ioctl.c
-+++ b/fs/ext4/ioctl.c
-@@ -262,6 +262,20 @@ setversion_out:
- return err;
- }
-
-+ case EXT4_IOC_ALLOC_DA_BLKS:
-+ {
-+ int err;
-+ if (!is_owner_or_cap(inode))
-+ return -EACCES;
-+
-+ err = mnt_want_write(filp->f_path.mnt);
-+ if (err)
-+ return err;
-+ err = ext4_alloc_da_blocks(inode);
-+ mnt_drop_write(filp->f_path.mnt);
-+ return err;
-+ }
-+
- default:
- return -ENOTTY;
- }
Deleted: hardened/2.6/trunk/2.6.28/1913_ext4-fix-discard-of-inode-prealloc-space-with-delayed-allocation.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/1913_ext4-fix-discard-of-inode-prealloc-space-with-delayed-allocation.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/1913_ext4-fix-discard-of-inode-prealloc-space-with-delayed-allocation.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,53 +0,0 @@
-Added-By: Gordon Malm <gengor@gentoo.org>
-
----
-From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
-Date: Thu, 26 Feb 2009 05:54:52 +0000 (-0500)
-Subject: ext4: Fix discard of inode prealloc space with delayed allocation.
-X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftytso%2Fext4.git;a=commitdiff_plain;h=3cb5e61547e9ee5f040d7a02c48c7cdf6485eecc
-
-ext4: Fix discard of inode prealloc space with delayed allocation.
-
-With delayed allocation we should not/cannot discard inode prealloc
-space during file close. We would still have dirty pages for which we
-haven't allocated blocks yet. With this fix after each get_blocks
-request we check whether we have zero reserved blocks and if yes and
-we don't have any writers on the file we discard inode prealloc space.
-
-Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
-Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
----
-
-diff --git a/fs/ext4/file.c b/fs/ext4/file.c
-index 06df827..588af8c 100644
---- a/fs/ext4/file.c
-+++ b/fs/ext4/file.c
-@@ -39,7 +39,8 @@ static int ext4_release_file(struct inode *inode, struct file *filp)
- }
- /* if we are the last writer on the inode, drop the block reservation */
- if ((filp->f_mode & FMODE_WRITE) &&
-- (atomic_read(&inode->i_writecount) == 1))
-+ (atomic_read(&inode->i_writecount) == 1) &&
-+ !EXT4_I(inode)->i_reserved_data_blocks)
- {
- down_write(&EXT4_I(inode)->i_data_sem);
- ext4_discard_preallocations(inode);
-diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
-index 666caa9..8815b9c 100644
---- a/fs/ext4/inode.c
-+++ b/fs/ext4/inode.c
-@@ -1053,6 +1053,14 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used)
- EXT4_I(inode)->i_reserved_data_blocks -= used;
-
- spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
-+
-+ /*
-+ * If have done all the pending block allocation and if the we
-+ * don't have any writer on the inode, we can discard the
-+ * inode's preallocations.
-+ */
-+ if (!total && (atomic_read(&inode->i_writecount) == 0))
-+ ext4_discard_preallocations(inode);
- }
-
- /*
Deleted: hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.7-200903091908.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.7-200903091908.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.7-200903091908.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,37171 +0,0 @@
-diff -urNp linux-2.6.28.7/arch/alpha/include/asm/elf.h linux-2.6.28.7/arch/alpha/include/asm/elf.h
---- linux-2.6.28.7/arch/alpha/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/alpha/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N
-
- #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
-+
-+#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
-+#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
-+#endif
-+
- /* $0 is set by ld.so to a pointer to a function which might be
- registered using atexit. This provides a mean for the dynamic
- linker to call DT_FINI functions for shared libraries that have
-diff -urNp linux-2.6.28.7/arch/alpha/include/asm/kmap_types.h linux-2.6.28.7/arch/alpha/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/alpha/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/alpha/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -24,7 +24,8 @@ D(9) KM_IRQ0,
- D(10) KM_IRQ1,
- D(11) KM_SOFTIRQ0,
- D(12) KM_SOFTIRQ1,
--D(13) KM_TYPE_NR
-+D(13) KM_CLEARPAGE,
-+D(14) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/arch/alpha/include/asm/pgtable.h linux-2.6.28.7/arch/alpha/include/asm/pgtable.h
---- linux-2.6.28.7/arch/alpha/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/alpha/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
-@@ -101,6 +101,17 @@ struct vm_area_struct;
- #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS)
- #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
- #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
-+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
-+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
-+#else
-+# define PAGE_SHARED_NOEXEC PAGE_SHARED
-+# define PAGE_COPY_NOEXEC PAGE_COPY
-+# define PAGE_READONLY_NOEXEC PAGE_READONLY
-+#endif
-+
- #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
-
- #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
-diff -urNp linux-2.6.28.7/arch/alpha/kernel/module.c linux-2.6.28.7/arch/alpha/kernel/module.c
---- linux-2.6.28.7/arch/alpha/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/alpha/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
-@@ -182,7 +182,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs,
-
- /* The small sections were sorted to the end of the segment.
- The following should definitely cover them. */
-- gp = (u64)me->module_core + me->core_size - 0x8000;
-+ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000;
- got = sechdrs[me->arch.gotsecindex].sh_addr;
-
- for (i = 0; i < n; i++) {
-diff -urNp linux-2.6.28.7/arch/alpha/kernel/osf_sys.c linux-2.6.28.7/arch/alpha/kernel/osf_sys.c
---- linux-2.6.28.7/arch/alpha/kernel/osf_sys.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/alpha/kernel/osf_sys.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1230,6 +1230,10 @@ arch_get_unmapped_area(struct file *filp
- merely specific addresses, but regions of memory -- perhaps
- this feature should be incorporated into all ports? */
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- if (addr) {
- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
- if (addr != (unsigned long) -ENOMEM)
-@@ -1237,8 +1241,8 @@ arch_get_unmapped_area(struct file *filp
- }
-
- /* Next, try allocating at TASK_UNMAPPED_BASE. */
-- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
-- len, limit);
-+ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit);
-+
- if (addr != (unsigned long) -ENOMEM)
- return addr;
-
-diff -urNp linux-2.6.28.7/arch/alpha/kernel/ptrace.c linux-2.6.28.7/arch/alpha/kernel/ptrace.c
---- linux-2.6.28.7/arch/alpha/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/alpha/kernel/ptrace.c 2009-02-21 09:37:48.000000000 -0500
-@@ -266,6 +266,9 @@ long arch_ptrace(struct task_struct *chi
- size_t copied;
- long ret;
-
-+ if (gr_handle_ptrace(child, request))
-+ return -EPERM;
-+
- switch (request) {
- /* When I and D space are separate, these will need to be fixed. */
- case PTRACE_PEEKTEXT: /* read word at location addr. */
-diff -urNp linux-2.6.28.7/arch/alpha/mm/fault.c linux-2.6.28.7/arch/alpha/mm/fault.c
---- linux-2.6.28.7/arch/alpha/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/alpha/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -54,6 +54,124 @@ __load_new_mm_context(struct mm_struct *
- __reload_thread(pcb);
- }
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+/*
-+ * PaX: decide what to do with offenders (regs->pc = fault address)
-+ *
-+ * returns 1 when task should be killed
-+ * 2 when patched PLT trampoline was detected
-+ * 3 when unpatched PLT trampoline was detected
-+ */
-+static int pax_handle_fetch_fault(struct pt_regs *regs)
-+{
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ int err;
-+
-+ do { /* PaX: patched PLT emulation #1 */
-+ unsigned int ldah, ldq, jmp;
-+
-+ err = get_user(ldah, (unsigned int *)regs->pc);
-+ err |= get_user(ldq, (unsigned int *)(regs->pc+4));
-+ err |= get_user(jmp, (unsigned int *)(regs->pc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
-+ (ldq & 0xFFFF0000U) == 0xA77B0000U &&
-+ jmp == 0x6BFB0000U)
-+ {
-+ unsigned long r27, addr;
-+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
-+ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
-+
-+ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
-+ err = get_user(r27, (unsigned long *)addr);
-+ if (err)
-+ break;
-+
-+ regs->r27 = r27;
-+ regs->pc = r27;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: patched PLT emulation #2 */
-+ unsigned int ldah, lda, br;
-+
-+ err = get_user(ldah, (unsigned int *)regs->pc);
-+ err |= get_user(lda, (unsigned int *)(regs->pc+4));
-+ err |= get_user(br, (unsigned int *)(regs->pc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
-+ (lda & 0xFFFF0000U) == 0xA77B0000U &&
-+ (br & 0xFFE00000U) == 0xC3E00000U)
-+ {
-+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
-+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
-+ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
-+
-+ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
-+ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: unpatched PLT emulation */
-+ unsigned int br;
-+
-+ err = get_user(br, (unsigned int *)regs->pc);
-+
-+ if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
-+ unsigned int br2, ldq, nop, jmp;
-+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
-+
-+ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
-+ err = get_user(br2, (unsigned int *)addr);
-+ err |= get_user(ldq, (unsigned int *)(addr+4));
-+ err |= get_user(nop, (unsigned int *)(addr+8));
-+ err |= get_user(jmp, (unsigned int *)(addr+12));
-+ err |= get_user(resolver, (unsigned long *)(addr+16));
-+
-+ if (err)
-+ break;
-+
-+ if (br2 == 0xC3600000U &&
-+ ldq == 0xA77B000CU &&
-+ nop == 0x47FF041FU &&
-+ jmp == 0x6B7B0000U)
-+ {
-+ regs->r28 = regs->pc+4;
-+ regs->r27 = addr+16;
-+ regs->pc = resolver;
-+ return 3;
-+ }
-+ }
-+ } while (0);
-+#endif
-+
-+ return 1;
-+}
-+
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 5; i++) {
-+ unsigned int c;
-+ if (get_user(c, (unsigned int *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%08x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-
- /*
- * This routine handles page faults. It determines the address,
-@@ -131,8 +249,29 @@ do_page_fault(unsigned long address, uns
- good_area:
- si_code = SEGV_ACCERR;
- if (cause < 0) {
-- if (!(vma->vm_flags & VM_EXEC))
-+ if (!(vma->vm_flags & VM_EXEC)) {
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
-+ goto bad_area;
-+
-+ up_read(&mm->mmap_sem);
-+ switch (pax_handle_fetch_fault(regs)) {
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ case 2:
-+ case 3:
-+ return;
-+#endif
-+
-+ }
-+ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
-+ do_group_exit(SIGKILL);
-+#else
- goto bad_area;
-+#endif
-+
-+ }
- } else if (!cause) {
- /* Allow reads even for write-only mappings */
- if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
-diff -urNp linux-2.6.28.7/arch/arm/include/asm/elf.h linux-2.6.28.7/arch/arm/include/asm/elf.h
---- linux-2.6.28.7/arch/arm/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/arm/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -99,7 +99,14 @@ extern int arm_elf_read_implies_exec(con
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
--#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
-+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
-+
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE 0x00008000UL
-+
-+#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
-+#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
-+#endif
-
- /* When the program starts, a1 contains a pointer to a function to be
- registered with atexit, as per the SVR4 ABI. A value of 0 means we
-diff -urNp linux-2.6.28.7/arch/arm/include/asm/kmap_types.h linux-2.6.28.7/arch/arm/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/arm/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/arm/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -18,6 +18,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/arm/mm/mmap.c linux-2.6.28.7/arch/arm/mm/mmap.c
---- linux-2.6.28.7/arch/arm/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/arm/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500
-@@ -62,6 +62,10 @@ arch_get_unmapped_area(struct file *filp
- if (len > TASK_SIZE)
- return -ENOMEM;
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- if (addr) {
- if (do_align)
- addr = COLOUR_ALIGN(addr, pgoff);
-@@ -74,10 +78,10 @@ arch_get_unmapped_area(struct file *filp
- return addr;
- }
- if (len > mm->cached_hole_size) {
-- start_addr = addr = mm->free_area_cache;
-+ start_addr = addr = mm->free_area_cache;
- } else {
-- start_addr = addr = TASK_UNMAPPED_BASE;
-- mm->cached_hole_size = 0;
-+ start_addr = addr = mm->mmap_base;
-+ mm->cached_hole_size = 0;
- }
-
- full_search:
-@@ -93,8 +97,8 @@ full_search:
- * Start a new search - just in case we missed
- * some holes.
- */
-- if (start_addr != TASK_UNMAPPED_BASE) {
-- start_addr = addr = TASK_UNMAPPED_BASE;
-+ if (start_addr != mm->mmap_base) {
-+ start_addr = addr = mm->mmap_base;
- mm->cached_hole_size = 0;
- goto full_search;
- }
-diff -urNp linux-2.6.28.7/arch/avr32/include/asm/elf.h linux-2.6.28.7/arch/avr32/include/asm/elf.h
---- linux-2.6.28.7/arch/avr32/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/avr32/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -85,8 +85,14 @@ typedef struct user_fpu_struct elf_fpreg
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
--#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
-+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE 0x00001000UL
-+
-+#define PAX_DELTA_MMAP_LEN 15
-+#define PAX_DELTA_STACK_LEN 15
-+#endif
-
- /* This yields a mask that user programs can use to figure out what
- instruction set this CPU supports. This could be done in user space,
-diff -urNp linux-2.6.28.7/arch/avr32/include/asm/kmap_types.h linux-2.6.28.7/arch/avr32/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/avr32/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/avr32/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -22,7 +22,8 @@ D(10) KM_IRQ0,
- D(11) KM_IRQ1,
- D(12) KM_SOFTIRQ0,
- D(13) KM_SOFTIRQ1,
--D(14) KM_TYPE_NR
-+D(14) KM_CLEARPAGE,
-+D(15) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/arch/avr32/mm/fault.c linux-2.6.28.7/arch/avr32/mm/fault.c
---- linux-2.6.28.7/arch/avr32/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/avr32/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -41,6 +41,23 @@ static inline int notify_page_fault(stru
-
- int exception_trace = 1;
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 20; i++) {
-+ unsigned char c;
-+ if (get_user(c, (unsigned char *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%02x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-+
- /*
- * This routine handles page faults. It determines the address and the
- * problem, and then passes it off to one of the appropriate routines.
-@@ -157,6 +174,16 @@ bad_area:
- up_read(&mm->mmap_sem);
-
- if (user_mode(regs)) {
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
-+ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
-+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
-+ do_group_exit(SIGKILL);
-+ }
-+ }
-+#endif
-+
- if (exception_trace && printk_ratelimit())
- printk("%s%s[%d]: segfault at %08lx pc %08lx "
- "sp %08lx ecr %lu\n",
-diff -urNp linux-2.6.28.7/arch/blackfin/include/asm/kmap_types.h linux-2.6.28.7/arch/blackfin/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/blackfin/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/blackfin/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -15,6 +15,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/cris/include/asm/kmap_types.h linux-2.6.28.7/arch/cris/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/cris/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/cris/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -19,6 +19,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/h8300/include/asm/kmap_types.h linux-2.6.28.7/arch/h8300/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/h8300/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/h8300/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -15,6 +15,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/ia64/ia32/binfmt_elf32.c linux-2.6.28.7/arch/ia64/ia32/binfmt_elf32.c
---- linux-2.6.28.7/arch/ia64/ia32/binfmt_elf32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/ia32/binfmt_elf32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -45,6 +45,13 @@ randomize_stack_top(unsigned long stack_
-
- #define elf_read_implies_exec(ex, have_pt_gnu_stack) (!(have_pt_gnu_stack))
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
-+
-+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
-+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
-+#endif
-+
- /* Ugly but avoids duplication */
- #include "../../../fs/binfmt_elf.c"
-
-diff -urNp linux-2.6.28.7/arch/ia64/ia32/ia32priv.h linux-2.6.28.7/arch/ia64/ia32/ia32priv.h
---- linux-2.6.28.7/arch/ia64/ia32/ia32priv.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/ia32/ia32priv.h 2009-02-21 09:37:48.000000000 -0500
-@@ -296,7 +296,14 @@ typedef struct compat_siginfo {
- #define ELF_DATA ELFDATA2LSB
- #define ELF_ARCH EM_386
-
--#define IA32_STACK_TOP IA32_PAGE_OFFSET
-+#ifdef CONFIG_PAX_RANDUSTACK
-+#define __IA32_DELTA_STACK (current->mm->delta_stack)
-+#else
-+#define __IA32_DELTA_STACK 0UL
-+#endif
-+
-+#define IA32_STACK_TOP (IA32_PAGE_OFFSET - __IA32_DELTA_STACK)
-+
- #define IA32_GATE_OFFSET IA32_PAGE_OFFSET
- #define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE
-
-diff -urNp linux-2.6.28.7/arch/ia64/include/asm/elf.h linux-2.6.28.7/arch/ia64/include/asm/elf.h
---- linux-2.6.28.7/arch/ia64/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -43,6 +43,13 @@
- */
- #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
-+
-+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
-+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
-+#endif
-+
- #define PT_IA_64_UNWIND 0x70000001
-
- /* IA-64 relocations: */
-diff -urNp linux-2.6.28.7/arch/ia64/include/asm/kmap_types.h linux-2.6.28.7/arch/ia64/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/ia64/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -22,7 +22,8 @@ D(9) KM_IRQ0,
- D(10) KM_IRQ1,
- D(11) KM_SOFTIRQ0,
- D(12) KM_SOFTIRQ1,
--D(13) KM_TYPE_NR
-+D(13) KM_CLEARPAGE,
-+D(14) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/arch/ia64/include/asm/pgtable.h linux-2.6.28.7/arch/ia64/include/asm/pgtable.h
---- linux-2.6.28.7/arch/ia64/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
-@@ -143,6 +143,17 @@
- #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
- #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
- #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
-+# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
-+# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
-+#else
-+# define PAGE_SHARED_NOEXEC PAGE_SHARED
-+# define PAGE_READONLY_NOEXEC PAGE_READONLY
-+# define PAGE_COPY_NOEXEC PAGE_COPY
-+#endif
-+
- #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
- #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX)
- #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
-diff -urNp linux-2.6.28.7/arch/ia64/kernel/module.c linux-2.6.28.7/arch/ia64/kernel/module.c
---- linux-2.6.28.7/arch/ia64/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
-@@ -312,8 +312,7 @@ module_alloc (unsigned long size)
- void
- module_free (struct module *mod, void *module_region)
- {
-- if (mod && mod->arch.init_unw_table &&
-- module_region == mod->module_init) {
-+ if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) {
- unw_remove_unwind_table(mod->arch.init_unw_table);
- mod->arch.init_unw_table = NULL;
- }
-@@ -491,15 +490,39 @@ module_frob_arch_sections (Elf_Ehdr *ehd
- }
-
- static inline int
-+in_init_rx (const struct module *mod, uint64_t addr)
-+{
-+ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx;
-+}
-+
-+static inline int
-+in_init_rw (const struct module *mod, uint64_t addr)
-+{
-+ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw;
-+}
-+
-+static inline int
- in_init (const struct module *mod, uint64_t addr)
- {
-- return addr - (uint64_t) mod->module_init < mod->init_size;
-+ return in_init_rx(mod, addr) || in_init_rw(mod, addr);
-+}
-+
-+static inline int
-+in_core_rx (const struct module *mod, uint64_t addr)
-+{
-+ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx;
-+}
-+
-+static inline int
-+in_core_rw (const struct module *mod, uint64_t addr)
-+{
-+ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw;
- }
-
- static inline int
- in_core (const struct module *mod, uint64_t addr)
- {
-- return addr - (uint64_t) mod->module_core < mod->core_size;
-+ return in_core_rx(mod, addr) || in_core_rw(mod, addr);
- }
-
- static inline int
-@@ -683,7 +706,14 @@ do_reloc (struct module *mod, uint8_t r_
- break;
-
- case RV_BDREL:
-- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
-+ if (in_init_rx(mod, val))
-+ val -= (uint64_t) mod->module_init_rx;
-+ else if (in_init_rw(mod, val))
-+ val -= (uint64_t) mod->module_init_rw;
-+ else if (in_core_rx(mod, val))
-+ val -= (uint64_t) mod->module_core_rx;
-+ else if (in_core_rw(mod, val))
-+ val -= (uint64_t) mod->module_core_rw;
- break;
-
- case RV_LTV:
-@@ -817,15 +847,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs,
- * addresses have been selected...
- */
- uint64_t gp;
-- if (mod->core_size > MAX_LTOFF)
-+ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF)
- /*
- * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
- * at the end of the module.
- */
-- gp = mod->core_size - MAX_LTOFF / 2;
-+ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2;
- else
-- gp = mod->core_size / 2;
-- gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
-+ gp = (mod->core_size_rx + mod->core_size_rw) / 2;
-+ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8);
- mod->arch.gp = gp;
- DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
- }
-diff -urNp linux-2.6.28.7/arch/ia64/kernel/sys_ia64.c linux-2.6.28.7/arch/ia64/kernel/sys_ia64.c
---- linux-2.6.28.7/arch/ia64/kernel/sys_ia64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/kernel/sys_ia64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *fil
- if (REGION_NUMBER(addr) == RGN_HPAGE)
- addr = 0;
- #endif
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ addr = mm->free_area_cache;
-+ else
-+#endif
-+
- if (!addr)
- addr = mm->free_area_cache;
-
-@@ -61,9 +68,9 @@ arch_get_unmapped_area (struct file *fil
- for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
- /* At this point: (!vma || addr < vma->vm_end). */
- if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) {
-- if (start_addr != TASK_UNMAPPED_BASE) {
-+ if (start_addr != mm->mmap_base) {
- /* Start a new search --- just in case we missed some holes. */
-- addr = TASK_UNMAPPED_BASE;
-+ addr = mm->mmap_base;
- goto full_search;
- }
- return -ENOMEM;
-diff -urNp linux-2.6.28.7/arch/ia64/mm/fault.c linux-2.6.28.7/arch/ia64/mm/fault.c
---- linux-2.6.28.7/arch/ia64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned
- return pte_present(pte);
- }
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 8; i++) {
-+ unsigned int c;
-+ if (get_user(c, (unsigned int *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%08x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-+
- void __kprobes
- ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs)
- {
-@@ -145,9 +162,23 @@ ia64_do_page_fault (unsigned long addres
- mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
- | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT));
-
-- if ((vma->vm_flags & mask) != mask)
-+ if ((vma->vm_flags & mask) != mask) {
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
-+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
-+ goto bad_area;
-+
-+ up_read(&mm->mmap_sem);
-+ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
-+ do_group_exit(SIGKILL);
-+ }
-+#endif
-+
- goto bad_area;
-
-+ }
-+
- survive:
- /*
- * If for any reason at all we couldn't handle the fault, make
-diff -urNp linux-2.6.28.7/arch/ia64/mm/init.c linux-2.6.28.7/arch/ia64/mm/init.c
---- linux-2.6.28.7/arch/ia64/mm/init.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/ia64/mm/init.c 2009-02-21 09:37:48.000000000 -0500
-@@ -121,6 +121,19 @@ ia64_init_addr_space (void)
- vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
- vma->vm_end = vma->vm_start + PAGE_SIZE;
- vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
-+ vma->vm_flags &= ~VM_EXEC;
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (current->mm->pax_flags & MF_PAX_MPROTECT)
-+ vma->vm_flags &= ~VM_MAYEXEC;
-+#endif
-+
-+ }
-+#endif
-+
- vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
- down_write(¤t->mm->mmap_sem);
- if (insert_vm_struct(current->mm, vma)) {
-diff -urNp linux-2.6.28.7/arch/m68knommu/include/asm/kmap_types.h linux-2.6.28.7/arch/m68knommu/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/m68knommu/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/m68knommu/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -15,6 +15,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/mips/include/asm/elf.h linux-2.6.28.7/arch/mips/include/asm/elf.h
---- linux-2.6.28.7/arch/mips/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -364,4 +364,11 @@ extern int dump_task_fpu(struct task_str
- #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
- #endif
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL)
-+
-+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
-+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
-+#endif
-+
- #endif /* _ASM_ELF_H */
-diff -urNp linux-2.6.28.7/arch/mips/include/asm/kmap_types.h linux-2.6.28.7/arch/mips/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/mips/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -22,7 +22,8 @@ D(9) KM_IRQ0,
- D(10) KM_IRQ1,
- D(11) KM_SOFTIRQ0,
- D(12) KM_SOFTIRQ1,
--D(13) KM_TYPE_NR
-+D(13) KM_CLEARPAGE,
-+D(14) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/arch/mips/include/asm/page.h linux-2.6.28.7/arch/mips/include/asm/page.h
---- linux-2.6.28.7/arch/mips/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500
-@@ -82,7 +82,7 @@ extern void copy_user_highpage(struct pa
- #ifdef CONFIG_CPU_MIPS32
- typedef struct { unsigned long pte_low, pte_high; } pte_t;
- #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
-- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
-+ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
- #else
- typedef struct { unsigned long long pte; } pte_t;
- #define pte_val(x) ((x).pte)
-diff -urNp linux-2.6.28.7/arch/mips/include/asm/system.h linux-2.6.28.7/arch/mips/include/asm/system.h
---- linux-2.6.28.7/arch/mips/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500
-@@ -217,6 +217,6 @@ extern void per_cpu_trap_init(void);
- */
- #define __ARCH_WANT_UNLOCKED_CTXSW
-
--extern unsigned long arch_align_stack(unsigned long sp);
-+#define arch_align_stack(x) ((x) & ALMASK)
-
- #endif /* _ASM_SYSTEM_H */
-diff -urNp linux-2.6.28.7/arch/mips/kernel/binfmt_elfn32.c linux-2.6.28.7/arch/mips/kernel/binfmt_elfn32.c
---- linux-2.6.28.7/arch/mips/kernel/binfmt_elfn32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/kernel/binfmt_elfn32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N
- #undef ELF_ET_DYN_BASE
- #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL)
-+
-+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
-+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
-+#endif
-+
- #include <asm/processor.h>
- #include <linux/module.h>
- #include <linux/elfcore.h>
-diff -urNp linux-2.6.28.7/arch/mips/kernel/binfmt_elfo32.c linux-2.6.28.7/arch/mips/kernel/binfmt_elfo32.c
---- linux-2.6.28.7/arch/mips/kernel/binfmt_elfo32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/kernel/binfmt_elfo32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N
- #undef ELF_ET_DYN_BASE
- #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL)
-+
-+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
-+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
-+#endif
-+
- #include <asm/processor.h>
- #include <linux/module.h>
- #include <linux/elfcore.h>
-diff -urNp linux-2.6.28.7/arch/mips/kernel/process.c linux-2.6.28.7/arch/mips/kernel/process.c
---- linux-2.6.28.7/arch/mips/kernel/process.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/kernel/process.c 2009-02-21 09:37:48.000000000 -0500
-@@ -457,15 +457,3 @@ unsigned long get_wchan(struct task_stru
- out:
- return pc;
- }
--
--/*
-- * Don't forget that the stack pointer must be aligned on a 8 bytes
-- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
-- */
--unsigned long arch_align_stack(unsigned long sp)
--{
-- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-- sp -= get_random_int() & ~PAGE_MASK;
--
-- return sp & ALMASK;
--}
-diff -urNp linux-2.6.28.7/arch/mips/kernel/syscall.c linux-2.6.28.7/arch/mips/kernel/syscall.c
---- linux-2.6.28.7/arch/mips/kernel/syscall.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/kernel/syscall.c 2009-02-21 09:37:48.000000000 -0500
-@@ -99,6 +99,11 @@ unsigned long arch_get_unmapped_area(str
- do_color_align = 0;
- if (filp || (flags & MAP_SHARED))
- do_color_align = 1;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- if (addr) {
- if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
-@@ -109,7 +114,7 @@ unsigned long arch_get_unmapped_area(str
- (!vmm || addr + len <= vmm->vm_start))
- return addr;
- }
-- addr = TASK_UNMAPPED_BASE;
-+ addr = current->mm->mmap_base;
- if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
- else
-diff -urNp linux-2.6.28.7/arch/mips/mm/fault.c linux-2.6.28.7/arch/mips/mm/fault.c
---- linux-2.6.28.7/arch/mips/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/mips/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -26,6 +26,23 @@
- #include <asm/ptrace.h>
- #include <asm/highmem.h> /* For VMALLOC_END */
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+void pax_report_insns(void *pc)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 5; i++) {
-+ unsigned int c;
-+ if (get_user(c, (unsigned int *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%08x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-+
- /*
- * This routine handles page faults. It determines the address,
- * and the problem, and then passes it off to one of the appropriate
-diff -urNp linux-2.6.28.7/arch/parisc/include/asm/elf.h linux-2.6.28.7/arch/parisc/include/asm/elf.h
---- linux-2.6.28.7/arch/parisc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/parisc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -333,6 +333,13 @@ struct pt_regs; /* forward declaration..
-
- #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE 0x10000UL
-+
-+#define PAX_DELTA_MMAP_LEN 16
-+#define PAX_DELTA_STACK_LEN 16
-+#endif
-+
- /* This yields a mask that user programs can use to figure out what
- instruction set this CPU supports. This could be done in user space,
- but it's not easy, and we've already done it here. */
-diff -urNp linux-2.6.28.7/arch/parisc/include/asm/kmap_types.h linux-2.6.28.7/arch/parisc/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/parisc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/parisc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -22,7 +22,8 @@ D(9) KM_IRQ0,
- D(10) KM_IRQ1,
- D(11) KM_SOFTIRQ0,
- D(12) KM_SOFTIRQ1,
--D(13) KM_TYPE_NR
-+D(13) KM_CLEARPAGE,
-+D(14) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/arch/parisc/include/asm/pgtable.h linux-2.6.28.7/arch/parisc/include/asm/pgtable.h
---- linux-2.6.28.7/arch/parisc/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/parisc/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
-@@ -202,6 +202,17 @@
- #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
- #define PAGE_COPY PAGE_EXECREAD
- #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
-+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
-+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
-+#else
-+# define PAGE_SHARED_NOEXEC PAGE_SHARED
-+# define PAGE_COPY_NOEXEC PAGE_COPY
-+# define PAGE_READONLY_NOEXEC PAGE_READONLY
-+#endif
-+
- #define PAGE_KERNEL __pgprot(_PAGE_KERNEL)
- #define PAGE_KERNEL_RO __pgprot(_PAGE_KERNEL & ~_PAGE_WRITE)
- #define PAGE_KERNEL_UNC __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
-diff -urNp linux-2.6.28.7/arch/parisc/kernel/module.c linux-2.6.28.7/arch/parisc/kernel/module.c
---- linux-2.6.28.7/arch/parisc/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/parisc/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
-@@ -75,16 +75,38 @@
-
- /* three functions to determine where in the module core
- * or init pieces the location is */
-+static inline int in_init_rx(struct module *me, void *loc)
-+{
-+ return (loc >= me->module_init_rx &&
-+ loc < (me->module_init_rx + me->init_size_rx));
-+}
-+
-+static inline int in_init_rw(struct module *me, void *loc)
-+{
-+ return (loc >= me->module_init_rw &&
-+ loc < (me->module_init_rw + me->init_size_rw));
-+}
-+
- static inline int in_init(struct module *me, void *loc)
- {
-- return (loc >= me->module_init &&
-- loc <= (me->module_init + me->init_size));
-+ return in_init_rx(me, loc) || in_init_rw(me, loc);
-+}
-+
-+static inline int in_core_rx(struct module *me, void *loc)
-+{
-+ return (loc >= me->module_core_rx &&
-+ loc < (me->module_core_rx + me->core_size_rx));
-+}
-+
-+static inline int in_core_rw(struct module *me, void *loc)
-+{
-+ return (loc >= me->module_core_rw &&
-+ loc < (me->module_core_rw + me->core_size_rw));
- }
-
- static inline int in_core(struct module *me, void *loc)
- {
-- return (loc >= me->module_core &&
-- loc <= (me->module_core + me->core_size));
-+ return in_core_rx(me, loc) || in_core_rw(me, loc);
- }
-
- static inline int in_local(struct module *me, void *loc)
-@@ -298,21 +320,21 @@ int module_frob_arch_sections(CONST Elf_
- }
-
- /* align things a bit */
-- me->core_size = ALIGN(me->core_size, 16);
-- me->arch.got_offset = me->core_size;
-- me->core_size += gots * sizeof(struct got_entry);
--
-- me->core_size = ALIGN(me->core_size, 16);
-- me->arch.fdesc_offset = me->core_size;
-- me->core_size += fdescs * sizeof(Elf_Fdesc);
--
-- me->core_size = ALIGN(me->core_size, 16);
-- me->arch.stub_offset = me->core_size;
-- me->core_size += stubs * sizeof(struct stub_entry);
--
-- me->init_size = ALIGN(me->init_size, 16);
-- me->arch.init_stub_offset = me->init_size;
-- me->init_size += init_stubs * sizeof(struct stub_entry);
-+ me->core_size_rw = ALIGN(me->core_size_rw, 16);
-+ me->arch.got_offset = me->core_size_rw;
-+ me->core_size_rw += gots * sizeof(struct got_entry);
-+
-+ me->core_size_rw = ALIGN(me->core_size_rw, 16);
-+ me->arch.fdesc_offset = me->core_size_rw;
-+ me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
-+
-+ me->core_size_rx = ALIGN(me->core_size_rx, 16);
-+ me->arch.stub_offset = me->core_size_rx;
-+ me->core_size_rx += stubs * sizeof(struct stub_entry);
-+
-+ me->init_size_rx = ALIGN(me->init_size_rx, 16);
-+ me->arch.init_stub_offset = me->init_size_rx;
-+ me->init_size_rx += init_stubs * sizeof(struct stub_entry);
-
- me->arch.got_max = gots;
- me->arch.fdesc_max = fdescs;
-@@ -332,7 +354,7 @@ static Elf64_Word get_got(struct module
-
- BUG_ON(value == 0);
-
-- got = me->module_core + me->arch.got_offset;
-+ got = me->module_core_rw + me->arch.got_offset;
- for (i = 0; got[i].addr; i++)
- if (got[i].addr == value)
- goto out;
-@@ -350,7 +372,7 @@ static Elf64_Word get_got(struct module
- #ifdef CONFIG_64BIT
- static Elf_Addr get_fdesc(struct module *me, unsigned long value)
- {
-- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
-+ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
-
- if (!value) {
- printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
-@@ -368,7 +390,7 @@ static Elf_Addr get_fdesc(struct module
-
- /* Create new one */
- fdesc->addr = value;
-- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
-+ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
- return (Elf_Addr)fdesc;
- }
- #endif /* CONFIG_64BIT */
-@@ -388,12 +410,12 @@ static Elf_Addr get_stub(struct module *
- if(init_section) {
- i = me->arch.init_stub_count++;
- BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max);
-- stub = me->module_init + me->arch.init_stub_offset +
-+ stub = me->module_init_rx + me->arch.init_stub_offset +
- i * sizeof(struct stub_entry);
- } else {
- i = me->arch.stub_count++;
- BUG_ON(me->arch.stub_count > me->arch.stub_max);
-- stub = me->module_core + me->arch.stub_offset +
-+ stub = me->module_core_rx + me->arch.stub_offset +
- i * sizeof(struct stub_entry);
- }
-
-@@ -761,7 +783,7 @@ register_unwind_table(struct module *me,
-
- table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
- end = table + sechdrs[me->arch.unwind_section].sh_size;
-- gp = (Elf_Addr)me->module_core + me->arch.got_offset;
-+ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
-
- DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
- me->arch.unwind_section, table, end, gp);
-diff -urNp linux-2.6.28.7/arch/parisc/kernel/sys_parisc.c linux-2.6.28.7/arch/parisc/kernel/sys_parisc.c
---- linux-2.6.28.7/arch/parisc/kernel/sys_parisc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/parisc/kernel/sys_parisc.c 2009-02-21 09:37:48.000000000 -0500
-@@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(str
- if (flags & MAP_FIXED)
- return addr;
- if (!addr)
-- addr = TASK_UNMAPPED_BASE;
-+ addr = current->mm->mmap_base;
-
- if (filp) {
- addr = get_shared_area(filp->f_mapping, addr, len, pgoff);
-diff -urNp linux-2.6.28.7/arch/parisc/kernel/traps.c linux-2.6.28.7/arch/parisc/kernel/traps.c
---- linux-2.6.28.7/arch/parisc/kernel/traps.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/parisc/kernel/traps.c 2009-02-21 09:37:48.000000000 -0500
-@@ -731,9 +731,7 @@ void handle_interruption(int code, struc
-
- down_read(¤t->mm->mmap_sem);
- vma = find_vma(current->mm,regs->iaoq[0]);
-- if (vma && (regs->iaoq[0] >= vma->vm_start)
-- && (vma->vm_flags & VM_EXEC)) {
--
-+ if (vma && (regs->iaoq[0] >= vma->vm_start)) {
- fault_address = regs->iaoq[0];
- fault_space = regs->iasq[0];
-
-diff -urNp linux-2.6.28.7/arch/parisc/mm/fault.c linux-2.6.28.7/arch/parisc/mm/fault.c
---- linux-2.6.28.7/arch/parisc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/parisc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -16,6 +16,7 @@
- #include <linux/sched.h>
- #include <linux/interrupt.h>
- #include <linux/module.h>
-+#include <linux/unistd.h>
-
- #include <asm/uaccess.h>
- #include <asm/traps.h>
-@@ -53,7 +54,7 @@ DEFINE_PER_CPU(struct exception_data, ex
- static unsigned long
- parisc_acctyp(unsigned long code, unsigned int inst)
- {
-- if (code == 6 || code == 16)
-+ if (code == 6 || code == 7 || code == 16)
- return VM_EXEC;
-
- switch (inst & 0xf0000000) {
-@@ -139,6 +140,116 @@ parisc_acctyp(unsigned long code, unsign
- }
- #endif
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+/*
-+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
-+ *
-+ * returns 1 when task should be killed
-+ * 2 when rt_sigreturn trampoline was detected
-+ * 3 when unpatched PLT trampoline was detected
-+ */
-+static int pax_handle_fetch_fault(struct pt_regs *regs)
-+{
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ int err;
-+
-+ do { /* PaX: unpatched PLT emulation */
-+ unsigned int bl, depwi;
-+
-+ err = get_user(bl, (unsigned int *)instruction_pointer(regs));
-+ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
-+
-+ if (err)
-+ break;
-+
-+ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
-+ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
-+
-+ err = get_user(ldw, (unsigned int *)addr);
-+ err |= get_user(bv, (unsigned int *)(addr+4));
-+ err |= get_user(ldw2, (unsigned int *)(addr+8));
-+
-+ if (err)
-+ break;
-+
-+ if (ldw == 0x0E801096U &&
-+ bv == 0xEAC0C000U &&
-+ ldw2 == 0x0E881095U)
-+ {
-+ unsigned int resolver, map;
-+
-+ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
-+ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
-+ if (err)
-+ break;
-+
-+ regs->gr[20] = instruction_pointer(regs)+8;
-+ regs->gr[21] = map;
-+ regs->gr[22] = resolver;
-+ regs->iaoq[0] = resolver | 3UL;
-+ regs->iaoq[1] = regs->iaoq[0] + 4;
-+ return 3;
-+ }
-+ }
-+ } while (0);
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+
-+#ifndef CONFIG_PAX_EMUSIGRT
-+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
-+ return 1;
-+#endif
-+
-+ do { /* PaX: rt_sigreturn emulation */
-+ unsigned int ldi1, ldi2, bel, nop;
-+
-+ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
-+ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
-+ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
-+ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
-+
-+ if (err)
-+ break;
-+
-+ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
-+ ldi2 == 0x3414015AU &&
-+ bel == 0xE4008200U &&
-+ nop == 0x08000240U)
-+ {
-+ regs->gr[25] = (ldi1 & 2) >> 1;
-+ regs->gr[20] = __NR_rt_sigreturn;
-+ regs->gr[31] = regs->iaoq[1] + 16;
-+ regs->sr[0] = regs->iasq[1];
-+ regs->iaoq[0] = 0x100UL;
-+ regs->iaoq[1] = regs->iaoq[0] + 4;
-+ regs->iasq[0] = regs->sr[2];
-+ regs->iasq[1] = regs->sr[2];
-+ return 2;
-+ }
-+ } while (0);
-+#endif
-+
-+ return 1;
-+}
-+
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 5; i++) {
-+ unsigned int c;
-+ if (get_user(c, (unsigned int *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%08x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-+
- void do_page_fault(struct pt_regs *regs, unsigned long code,
- unsigned long address)
- {
-@@ -165,8 +276,33 @@ good_area:
-
- acc_type = parisc_acctyp(code,regs->iir);
-
-- if ((vma->vm_flags & acc_type) != acc_type)
-+ if ((vma->vm_flags & acc_type) != acc_type) {
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
-+ (address & ~3UL) == instruction_pointer(regs))
-+ {
-+ up_read(&mm->mmap_sem);
-+ switch (pax_handle_fetch_fault(regs)) {
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ case 3:
-+ return;
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ case 2:
-+ return;
-+#endif
-+
-+ }
-+ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
-+ do_group_exit(SIGKILL);
-+ }
-+#endif
-+
- goto bad_area;
-+ }
-
- /*
- * If for any reason at all we couldn't handle the fault, make
-diff -urNp linux-2.6.28.7/arch/powerpc/include/asm/elf.h linux-2.6.28.7/arch/powerpc/include/asm/elf.h
---- linux-2.6.28.7/arch/powerpc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -180,6 +180,18 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E
-
- #define ELF_ET_DYN_BASE (0x20000000)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (0x10000000UL)
-+
-+#ifdef __powerpc64__
-+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28)
-+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28)
-+#else
-+#define PAX_DELTA_MMAP_LEN 15
-+#define PAX_DELTA_STACK_LEN 15
-+#endif
-+#endif
-+
- /*
- * Our registers are always unsigned longs, whether we're a 32 bit
- * process or 64 bit, on either a 64 bit or 32 bit kernel.
-diff -urNp linux-2.6.28.7/arch/powerpc/include/asm/kmap_types.h linux-2.6.28.7/arch/powerpc/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/powerpc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -26,6 +26,7 @@ enum km_type {
- KM_SOFTIRQ1,
- KM_PPC_SYNC_PAGE,
- KM_PPC_SYNC_ICACHE,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/powerpc/include/asm/page_64.h linux-2.6.28.7/arch/powerpc/include/asm/page_64.h
---- linux-2.6.28.7/arch/powerpc/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500
-@@ -170,15 +170,18 @@ do { \
- * stack by default, so in the absense of a PT_GNU_STACK program header
- * we turn execute permission off.
- */
--#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
-- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-+#define VM_STACK_DEFAULT_FLAGS32 \
-+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
-+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
- #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
-+#ifndef CONFIG_PAX_PAGEEXEC
- #define VM_STACK_DEFAULT_FLAGS \
- (test_thread_flag(TIF_32BIT) ? \
- VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
-+#endif
-
- #include <asm-generic/page.h>
-
-diff -urNp linux-2.6.28.7/arch/powerpc/include/asm/page.h linux-2.6.28.7/arch/powerpc/include/asm/page.h
---- linux-2.6.28.7/arch/powerpc/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500
-@@ -111,8 +111,9 @@ extern phys_addr_t kernstart_addr;
- * and needs to be executable. This means the whole heap ends
- * up being executable.
- */
--#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
-- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-+#define VM_DATA_DEFAULT_FLAGS32 \
-+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
-+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
- #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-diff -urNp linux-2.6.28.7/arch/powerpc/kernel/module_32.c linux-2.6.28.7/arch/powerpc/kernel/module_32.c
---- linux-2.6.28.7/arch/powerpc/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -158,7 +158,7 @@ int module_frob_arch_sections(Elf32_Ehdr
- me->arch.core_plt_section = i;
- }
- if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
-- printk("Module doesn't contain .plt or .init.plt sections.\n");
-+ printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name);
- return -ENOEXEC;
- }
-
-@@ -199,11 +199,16 @@ static uint32_t do_plt_call(void *locati
-
- DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
- /* Init, or core PLT? */
-- if (location >= mod->module_core
-- && location < mod->module_core + mod->core_size)
-+ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
-+ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
- entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
-- else
-+ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
-+ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
- entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
-+ else {
-+ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
-+ return ~0UL;
-+ }
-
- /* Find this entry, or if that fails, the next avail. entry */
- while (entry->jump[0]) {
-diff -urNp linux-2.6.28.7/arch/powerpc/kernel/signal_32.c linux-2.6.28.7/arch/powerpc/kernel/signal_32.c
---- linux-2.6.28.7/arch/powerpc/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -857,7 +857,7 @@ int handle_rt_signal32(unsigned long sig
- /* Save user registers on the stack */
- frame = &rt_sf->uc.uc_mcontext;
- addr = frame;
-- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
-+ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
- if (save_user_regs(regs, frame, 0, 1))
- goto badframe;
- regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp;
-diff -urNp linux-2.6.28.7/arch/powerpc/kernel/signal_64.c linux-2.6.28.7/arch/powerpc/kernel/signal_64.c
---- linux-2.6.28.7/arch/powerpc/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -429,7 +429,7 @@ int handle_rt_signal64(int signr, struct
- current->thread.fpscr.val = 0;
-
- /* Set up to return from userspace. */
-- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
-+ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
- regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
- } else {
- err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
-diff -urNp linux-2.6.28.7/arch/powerpc/kernel/vdso.c linux-2.6.28.7/arch/powerpc/kernel/vdso.c
---- linux-2.6.28.7/arch/powerpc/kernel/vdso.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/kernel/vdso.c 2009-02-21 09:37:48.000000000 -0500
-@@ -212,7 +212,7 @@ int arch_setup_additional_pages(struct l
- vdso_base = VDSO32_MBASE;
- #endif
-
-- current->mm->context.vdso_base = 0;
-+ current->mm->context.vdso_base = ~0UL;
-
- /* vDSO has a problem and was disabled, just don't "enable" it for the
- * process
-@@ -229,7 +229,7 @@ int arch_setup_additional_pages(struct l
- */
- down_write(&mm->mmap_sem);
- vdso_base = get_unmapped_area(NULL, vdso_base,
-- vdso_pages << PAGE_SHIFT, 0, 0);
-+ vdso_pages << PAGE_SHIFT, 0, MAP_PRIVATE | MAP_EXECUTABLE);
- if (IS_ERR_VALUE(vdso_base)) {
- rc = vdso_base;
- goto fail_mmapsem;
-diff -urNp linux-2.6.28.7/arch/powerpc/mm/fault.c linux-2.6.28.7/arch/powerpc/mm/fault.c
---- linux-2.6.28.7/arch/powerpc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -29,6 +29,10 @@
- #include <linux/module.h>
- #include <linux/kprobes.h>
- #include <linux/kdebug.h>
-+#include <linux/slab.h>
-+#include <linux/pagemap.h>
-+#include <linux/compiler.h>
-+#include <linux/unistd.h>
-
- #include <asm/page.h>
- #include <asm/pgtable.h>
-@@ -62,6 +66,363 @@ static inline int notify_page_fault(stru
- }
- #endif
-
-+#ifdef CONFIG_PAX_EMUSIGRT
-+void pax_syscall_close(struct vm_area_struct *vma)
-+{
-+ vma->vm_mm->call_syscall = 0UL;
-+}
-+
-+static int pax_syscall_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-+{
-+ unsigned int *kaddr;
-+
-+ vmf->page = alloc_page(GFP_HIGHUSER);
-+ if (!vmf->page)
-+ return VM_FAULT_OOM;
-+
-+ kaddr = kmap(vmf->page);
-+ memset(kaddr, 0, PAGE_SIZE);
-+ kaddr[0] = 0x44000002U; /* sc */
-+ __flush_dcache_icache(kaddr);
-+ kunmap(vmf->page);
-+ return VM_FAULT_MAJOR;
-+}
-+
-+static struct vm_operations_struct pax_vm_ops = {
-+ .close = pax_syscall_close,
-+ .fault = pax_syscall_fault
-+};
-+
-+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
-+{
-+ int ret;
-+
-+ vma->vm_mm = current->mm;
-+ vma->vm_start = addr;
-+ vma->vm_end = addr + PAGE_SIZE;
-+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
-+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
-+ vma->vm_ops = &pax_vm_ops;
-+
-+ ret = insert_vm_struct(current->mm, vma);
-+ if (ret)
-+ return ret;
-+
-+ ++current->mm->total_vm;
-+ return 0;
-+}
-+#endif
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+/*
-+ * PaX: decide what to do with offenders (regs->nip = fault address)
-+ *
-+ * returns 1 when task should be killed
-+ * 2 when patched GOT trampoline was detected
-+ * 3 when patched PLT trampoline was detected
-+ * 4 when unpatched PLT trampoline was detected
-+ * 5 when sigreturn trampoline was detected
-+ * 6 when rt_sigreturn trampoline was detected
-+ */
-+static int pax_handle_fetch_fault(struct pt_regs *regs)
-+{
-+
-+#if defined(CONFIG_PAX_EMUPLT) || defined(CONFIG_PAX_EMUSIGRT)
-+ int err;
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ do { /* PaX: patched GOT emulation */
-+ unsigned int blrl;
-+
-+ err = get_user(blrl, (unsigned int *)regs->nip);
-+
-+ if (!err && blrl == 0x4E800021U) {
-+ unsigned long temp = regs->nip;
-+
-+ regs->nip = regs->link & 0xFFFFFFFCUL;
-+ regs->link = temp + 4UL;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: patched PLT emulation #1 */
-+ unsigned int b;
-+
-+ err = get_user(b, (unsigned int *)regs->nip);
-+
-+ if (!err && (b & 0xFC000003U) == 0x48000000U) {
-+ regs->nip += (((b | 0xFC000000UL) ^ 0x02000000UL) + 0x02000000UL);
-+ return 3;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: unpatched PLT emulation #1 */
-+ unsigned int li, b;
-+
-+ err = get_user(li, (unsigned int *)regs->nip);
-+ err |= get_user(b, (unsigned int *)(regs->nip+4));
-+
-+ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) {
-+ unsigned int rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr;
-+ unsigned long addr = b | 0xFC000000UL;
-+
-+ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL);
-+ err = get_user(rlwinm, (unsigned int *)addr);
-+ err |= get_user(add, (unsigned int *)(addr+4));
-+ err |= get_user(li2, (unsigned int *)(addr+8));
-+ err |= get_user(addis2, (unsigned int *)(addr+12));
-+ err |= get_user(mtctr, (unsigned int *)(addr+16));
-+ err |= get_user(li3, (unsigned int *)(addr+20));
-+ err |= get_user(addis3, (unsigned int *)(addr+24));
-+ err |= get_user(bctr, (unsigned int *)(addr+28));
-+
-+ if (err)
-+ break;
-+
-+ if (rlwinm == 0x556C083CU &&
-+ add == 0x7D6C5A14U &&
-+ (li2 & 0xFFFF0000U) == 0x39800000U &&
-+ (addis2 & 0xFFFF0000U) == 0x3D8C0000U &&
-+ mtctr == 0x7D8903A6U &&
-+ (li3 & 0xFFFF0000U) == 0x39800000U &&
-+ (addis3 & 0xFFFF0000U) == 0x3D8C0000U &&
-+ bctr == 0x4E800420U)
-+ {
-+ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16;
-+ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+ regs->ctr += (addis2 & 0xFFFFU) << 16;
-+ regs->nip = regs->ctr;
-+ return 4;
-+ }
-+ }
-+ } while (0);
-+
-+#if 0
-+ do { /* PaX: unpatched PLT emulation #2 */
-+ unsigned int lis, lwzu, b, bctr;
-+
-+ err = get_user(lis, (unsigned int *)regs->nip);
-+ err |= get_user(lwzu, (unsigned int *)(regs->nip+4));
-+ err |= get_user(b, (unsigned int *)(regs->nip+8));
-+ err |= get_user(bctr, (unsigned int *)(regs->nip+12));
-+
-+ if (err)
-+ break;
-+
-+ if ((lis & 0xFFFF0000U) == 0x39600000U &&
-+ (lwzu & 0xU) == 0xU &&
-+ (b & 0xFC000003U) == 0x48000000U &&
-+ bctr == 0x4E800420U)
-+ {
-+ unsigned int addis, addi, rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr;
-+ unsigned long addr = b | 0xFC000000UL;
-+
-+ addr = regs->nip + 12 + ((addr ^ 0x02000000UL) + 0x02000000UL);
-+ err = get_user(addis, (unsigned int *)addr);
-+ err |= get_user(addi, (unsigned int *)(addr+4));
-+ err |= get_user(rlwinm, (unsigned int *)(addr+8));
-+ err |= get_user(add, (unsigned int *)(addr+12));
-+ err |= get_user(li2, (unsigned int *)(addr+16));
-+ err |= get_user(addis2, (unsigned int *)(addr+20));
-+ err |= get_user(mtctr, (unsigned int *)(addr+24));
-+ err |= get_user(li3, (unsigned int *)(addr+28));
-+ err |= get_user(addis3, (unsigned int *)(addr+32));
-+ err |= get_user(bctr, (unsigned int *)(addr+36));
-+
-+ if (err)
-+ break;
-+
-+ if ((addis & 0xFFFF0000U) == 0x3D6B0000U &&
-+ (addi & 0xFFFF0000U) == 0x396B0000U &&
-+ rlwinm == 0x556C083CU &&
-+ add == 0x7D6C5A14U &&
-+ (li2 & 0xFFFF0000U) == 0x39800000U &&
-+ (addis2 & 0xFFFF0000U) == 0x3D8C0000U &&
-+ mtctr == 0x7D8903A6U &&
-+ (li3 & 0xFFFF0000U) == 0x39800000U &&
-+ (addis3 & 0xFFFF0000U) == 0x3D8C0000U &&
-+ bctr == 0x4E800420U)
-+ {
-+ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16;
-+ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+ regs->ctr += (addis2 & 0xFFFFU) << 16;
-+ regs->nip = regs->ctr;
-+ return 4;
-+ }
-+ }
-+ } while (0);
-+#endif
-+
-+ do { /* PaX: unpatched PLT emulation #3 */
-+ unsigned int li, b;
-+
-+ err = get_user(li, (unsigned int *)regs->nip);
-+ err |= get_user(b, (unsigned int *)(regs->nip+4));
-+
-+ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) {
-+ unsigned int addis, lwz, mtctr, bctr;
-+ unsigned long addr = b | 0xFC000000UL;
-+
-+ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL);
-+ err = get_user(addis, (unsigned int *)addr);
-+ err |= get_user(lwz, (unsigned int *)(addr+4));
-+ err |= get_user(mtctr, (unsigned int *)(addr+8));
-+ err |= get_user(bctr, (unsigned int *)(addr+12));
-+
-+ if (err)
-+ break;
-+
-+ if ((addis & 0xFFFF0000U) == 0x3D6B0000U &&
-+ (lwz & 0xFFFF0000U) == 0x816B0000U &&
-+ mtctr == 0x7D6903A6U &&
-+ bctr == 0x4E800420U)
-+ {
-+ unsigned int r11;
-+
-+ addr = (addis << 16) + (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+ addr += (((lwz | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
-+
-+ err = get_user(r11, (unsigned int *)addr);
-+ if (err)
-+ break;
-+
-+ regs->gpr[PT_R11] = r11;
-+ regs->ctr = r11;
-+ regs->nip = r11;
-+ return 4;
-+ }
-+ }
-+ } while (0);
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUSIGRT
-+ do { /* PaX: sigreturn emulation */
-+ unsigned int li, sc;
-+
-+ err = get_user(li, (unsigned int *)regs->nip);
-+ err |= get_user(sc, (unsigned int *)(regs->nip+4));
-+
-+ if (!err && li == 0x38000000U + __NR_sigreturn && sc == 0x44000002U) {
-+ struct vm_area_struct *vma;
-+ unsigned long call_syscall;
-+
-+ down_read(¤t->mm->mmap_sem);
-+ call_syscall = current->mm->call_syscall;
-+ up_read(¤t->mm->mmap_sem);
-+ if (likely(call_syscall))
-+ goto emulate;
-+
-+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+
-+ down_write(¤t->mm->mmap_sem);
-+ if (current->mm->call_syscall) {
-+ call_syscall = current->mm->call_syscall;
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ goto emulate;
-+ }
-+
-+ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
-+ if (!vma || (call_syscall & ~PAGE_MASK)) {
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ if (pax_insert_vma(vma, call_syscall)) {
-+ up_write(¤t->mm->mmap_sem);
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ current->mm->call_syscall = call_syscall;
-+ up_write(¤t->mm->mmap_sem);
-+
-+emulate:
-+ regs->gpr[PT_R0] = __NR_sigreturn;
-+ regs->nip = call_syscall;
-+ return 5;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: rt_sigreturn emulation */
-+ unsigned int li, sc;
-+
-+ err = get_user(li, (unsigned int *)regs->nip);
-+ err |= get_user(sc, (unsigned int *)(regs->nip+4));
-+
-+ if (!err && li == 0x38000000U + __NR_rt_sigreturn && sc == 0x44000002U) {
-+ struct vm_area_struct *vma;
-+ unsigned int call_syscall;
-+
-+ down_read(¤t->mm->mmap_sem);
-+ call_syscall = current->mm->call_syscall;
-+ up_read(¤t->mm->mmap_sem);
-+ if (likely(call_syscall))
-+ goto rt_emulate;
-+
-+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+
-+ down_write(¤t->mm->mmap_sem);
-+ if (current->mm->call_syscall) {
-+ call_syscall = current->mm->call_syscall;
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ goto rt_emulate;
-+ }
-+
-+ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
-+ if (!vma || (call_syscall & ~PAGE_MASK)) {
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ if (pax_insert_vma(vma, call_syscall)) {
-+ up_write(¤t->mm->mmap_sem);
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ current->mm->call_syscall = call_syscall;
-+ up_write(¤t->mm->mmap_sem);
-+
-+rt_emulate:
-+ regs->gpr[PT_R0] = __NR_rt_sigreturn;
-+ regs->nip = call_syscall;
-+ return 6;
-+ }
-+ } while (0);
-+#endif
-+
-+ return 1;
-+}
-+
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 5; i++) {
-+ unsigned int c;
-+ if (get_user(c, (unsigned int *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%08x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-+
- /*
- * Check whether the instruction at regs->nip is a store using
- * an update addressing form which will update r1.
-@@ -132,7 +493,7 @@ int __kprobes do_page_fault(struct pt_re
- * indicate errors in DSISR but can validly be set in SRR1.
- */
- if (trap == 0x400)
-- error_code &= 0x48200000;
-+ error_code &= 0x58200000;
- else
- is_write = error_code & DSISR_ISSTORE;
- #else
-@@ -331,6 +692,37 @@ bad_area:
- bad_area_nosemaphore:
- /* User mode accesses cause a SIGSEGV */
- if (user_mode(regs)) {
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
-+#ifdef CONFIG_PPC64
-+ if (is_exec && (error_code & DSISR_PROTFAULT)) {
-+#else
-+ if (is_exec && regs->nip == address) {
-+#endif
-+ switch (pax_handle_fetch_fault(regs)) {
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ case 2:
-+ case 3:
-+ case 4:
-+ return 0;
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUSIGRT
-+ case 5:
-+ case 6:
-+ return 0;
-+#endif
-+
-+ }
-+
-+ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
-+ do_group_exit(SIGKILL);
-+ }
-+ }
-+#endif
-+
- _exception(SIGSEGV, regs, code, address);
- return 0;
- }
-diff -urNp linux-2.6.28.7/arch/powerpc/mm/mmap.c linux-2.6.28.7/arch/powerpc/mm/mmap.c
---- linux-2.6.28.7/arch/powerpc/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/powerpc/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500
-@@ -75,10 +75,22 @@ void arch_pick_mmap_layout(struct mm_str
- */
- if (mmap_is_legacy()) {
- mm->mmap_base = TASK_UNMAPPED_BASE;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
- mm->get_unmapped_area = arch_get_unmapped_area;
- mm->unmap_area = arch_unmap_area;
- } else {
- mm->mmap_base = mmap_base();
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
-+#endif
-+
- mm->get_unmapped_area = arch_get_unmapped_area_topdown;
- mm->unmap_area = arch_unmap_area_topdown;
- }
-diff -urNp linux-2.6.28.7/arch/s390/include/asm/kmap_types.h linux-2.6.28.7/arch/s390/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/s390/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/s390/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -16,6 +16,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/s390/kernel/module.c linux-2.6.28.7/arch/s390/kernel/module.c
---- linux-2.6.28.7/arch/s390/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/s390/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
-@@ -166,11 +166,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr,
-
- /* Increase core size by size of got & plt and set start
- offsets for got and plt. */
-- me->core_size = ALIGN(me->core_size, 4);
-- me->arch.got_offset = me->core_size;
-- me->core_size += me->arch.got_size;
-- me->arch.plt_offset = me->core_size;
-- me->core_size += me->arch.plt_size;
-+ me->core_size_rw = ALIGN(me->core_size_rw, 4);
-+ me->arch.got_offset = me->core_size_rw;
-+ me->core_size_rw += me->arch.got_size;
-+ me->arch.plt_offset = me->core_size_rx;
-+ me->core_size_rx += me->arch.plt_size;
- return 0;
- }
-
-@@ -256,7 +256,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
- if (info->got_initialized == 0) {
- Elf_Addr *gotent;
-
-- gotent = me->module_core + me->arch.got_offset +
-+ gotent = me->module_core_rw + me->arch.got_offset +
- info->got_offset;
- *gotent = val;
- info->got_initialized = 1;
-@@ -280,7 +280,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
- else if (r_type == R_390_GOTENT ||
- r_type == R_390_GOTPLTENT)
- *(unsigned int *) loc =
-- (val + (Elf_Addr) me->module_core - loc) >> 1;
-+ (val + (Elf_Addr) me->module_core_rw - loc) >> 1;
- else if (r_type == R_390_GOT64 ||
- r_type == R_390_GOTPLT64)
- *(unsigned long *) loc = val;
-@@ -294,7 +294,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
- case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */
- if (info->plt_initialized == 0) {
- unsigned int *ip;
-- ip = me->module_core + me->arch.plt_offset +
-+ ip = me->module_core_rx + me->arch.plt_offset +
- info->plt_offset;
- #ifndef CONFIG_64BIT
- ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
-@@ -316,7 +316,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
- val = me->arch.plt_offset - me->arch.got_offset +
- info->plt_offset + rela->r_addend;
- else
-- val = (Elf_Addr) me->module_core +
-+ val = (Elf_Addr) me->module_core_rx +
- me->arch.plt_offset + info->plt_offset +
- rela->r_addend - loc;
- if (r_type == R_390_PLT16DBL)
-@@ -336,7 +336,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
- case R_390_GOTOFF32: /* 32 bit offset to GOT. */
- case R_390_GOTOFF64: /* 64 bit offset to GOT. */
- val = val + rela->r_addend -
-- ((Elf_Addr) me->module_core + me->arch.got_offset);
-+ ((Elf_Addr) me->module_core_rw + me->arch.got_offset);
- if (r_type == R_390_GOTOFF16)
- *(unsigned short *) loc = val;
- else if (r_type == R_390_GOTOFF32)
-@@ -346,7 +346,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
- break;
- case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
- case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
-- val = (Elf_Addr) me->module_core + me->arch.got_offset +
-+ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
- rela->r_addend - loc;
- if (r_type == R_390_GOTPC)
- *(unsigned int *) loc = val;
-diff -urNp linux-2.6.28.7/arch/sh/include/asm/kmap_types.h linux-2.6.28.7/arch/sh/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/sh/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sh/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -24,7 +24,8 @@ D(9) KM_IRQ0,
- D(10) KM_IRQ1,
- D(11) KM_SOFTIRQ0,
- D(12) KM_SOFTIRQ1,
--D(13) KM_TYPE_NR
-+D(13) KM_CLEARPAGE,
-+D(14) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/arch/sparc/include/asm/elf_32.h linux-2.6.28.7/arch/sparc/include/asm/elf_32.h
---- linux-2.6.28.7/arch/sparc/include/asm/elf_32.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/include/asm/elf_32.h 2009-02-21 09:37:48.000000000 -0500
-@@ -116,6 +116,13 @@ typedef struct {
-
- #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE 0x10000UL
-+
-+#define PAX_DELTA_MMAP_LEN 16
-+#define PAX_DELTA_STACK_LEN 16
-+#endif
-+
- /* This yields a mask that user programs can use to figure out what
- instruction set this cpu supports. This can NOT be done in userspace
- on Sparc. */
-diff -urNp linux-2.6.28.7/arch/sparc/include/asm/elf_64.h linux-2.6.28.7/arch/sparc/include/asm/elf_64.h
---- linux-2.6.28.7/arch/sparc/include/asm/elf_64.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/include/asm/elf_64.h 2009-02-21 09:37:48.000000000 -0500
-@@ -163,6 +163,12 @@ typedef struct {
- #define ELF_ET_DYN_BASE 0x0000010000000000UL
- #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
-
-+#ifdef CONFIG_PAX_ASLR
-+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
-+
-+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28 )
-+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29 )
-+#endif
-
- /* This yields a mask that user programs can use to figure out what
- instruction set this cpu supports. */
-diff -urNp linux-2.6.28.7/arch/sparc/include/asm/kmap_types.h linux-2.6.28.7/arch/sparc/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/sparc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -19,6 +19,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/sparc/include/asm/pgtable_32.h linux-2.6.28.7/arch/sparc/include/asm/pgtable_32.h
---- linux-2.6.28.7/arch/sparc/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500
-@@ -43,6 +43,13 @@ BTFIXUPDEF_SIMM13(user_ptrs_per_pgd)
- BTFIXUPDEF_INT(page_none)
- BTFIXUPDEF_INT(page_copy)
- BTFIXUPDEF_INT(page_readonly)
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+BTFIXUPDEF_INT(page_shared_noexec)
-+BTFIXUPDEF_INT(page_copy_noexec)
-+BTFIXUPDEF_INT(page_readonly_noexec)
-+#endif
-+
- BTFIXUPDEF_INT(page_kernel)
-
- #define PMD_SHIFT SUN4C_PMD_SHIFT
-@@ -64,6 +71,16 @@ extern pgprot_t PAGE_SHARED;
- #define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy))
- #define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly))
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+extern pgprot_t PAGE_SHARED_NOEXEC;
-+# define PAGE_COPY_NOEXEC __pgprot(BTFIXUP_INT(page_copy_noexec))
-+# define PAGE_READONLY_NOEXEC __pgprot(BTFIXUP_INT(page_readonly_noexec))
-+#else
-+# define PAGE_SHARED_NOEXEC PAGE_SHARED
-+# define PAGE_COPY_NOEXEC PAGE_COPY
-+# define PAGE_READONLY_NOEXEC PAGE_READONLY
-+#endif
-+
- extern unsigned long page_kernel;
-
- #ifdef MODULE
-diff -urNp linux-2.6.28.7/arch/sparc/include/asm/pgtsrmmu.h linux-2.6.28.7/arch/sparc/include/asm/pgtsrmmu.h
---- linux-2.6.28.7/arch/sparc/include/asm/pgtsrmmu.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/include/asm/pgtsrmmu.h 2009-02-21 09:37:48.000000000 -0500
-@@ -115,6 +115,13 @@
- SRMMU_EXEC | SRMMU_REF)
- #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \
- SRMMU_EXEC | SRMMU_REF)
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
-+#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
-+#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
-+#endif
-+
- #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
- SRMMU_DIRTY | SRMMU_REF)
-
-diff -urNp linux-2.6.28.7/arch/sparc/kernel/sys_sparc.c linux-2.6.28.7/arch/sparc/kernel/sys_sparc.c
---- linux-2.6.28.7/arch/sparc/kernel/sys_sparc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500
-@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(str
- if (ARCH_SUN4C && len > 0x20000000)
- return -ENOMEM;
- if (!addr)
-- addr = TASK_UNMAPPED_BASE;
-+ addr = current->mm->mmap_base;
-
- if (flags & MAP_SHARED)
- addr = COLOUR_ALIGN(addr);
-diff -urNp linux-2.6.28.7/arch/sparc/Makefile linux-2.6.28.7/arch/sparc/Makefile
---- linux-2.6.28.7/arch/sparc/Makefile 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/Makefile 2009-02-21 09:37:48.000000000 -0500
-@@ -37,7 +37,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc
- # Renaming is done to avoid confusing pattern matching rules in 2.5.45 (multy-)
- INIT_Y := $(patsubst %/, %/built-in.o, $(init-y))
- CORE_Y := $(core-y)
--CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
-+CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
- CORE_Y := $(patsubst %/, %/built-in.o, $(CORE_Y))
- DRIVERS_Y := $(patsubst %/, %/built-in.o, $(drivers-y))
- NET_Y := $(patsubst %/, %/built-in.o, $(net-y))
-diff -urNp linux-2.6.28.7/arch/sparc/mm/fault.c linux-2.6.28.7/arch/sparc/mm/fault.c
---- linux-2.6.28.7/arch/sparc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -21,6 +21,9 @@
- #include <linux/interrupt.h>
- #include <linux/module.h>
- #include <linux/kdebug.h>
-+#include <linux/slab.h>
-+#include <linux/pagemap.h>
-+#include <linux/compiler.h>
-
- #include <asm/system.h>
- #include <asm/page.h>
-@@ -167,6 +170,249 @@ static unsigned long compute_si_addr(str
- return safe_compute_effective_address(regs, insn);
- }
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+void pax_emuplt_close(struct vm_area_struct *vma)
-+{
-+ vma->vm_mm->call_dl_resolve = 0UL;
-+}
-+
-+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-+{
-+ unsigned int *kaddr;
-+
-+ vmf->page = alloc_page(GFP_HIGHUSER);
-+ if (!vmf->page)
-+ return VM_FAULT_OOM;
-+
-+ kaddr = kmap(vmf->page);
-+ memset(kaddr, 0, PAGE_SIZE);
-+ kaddr[0] = 0x9DE3BFA8U; /* save */
-+ flush_dcache_page(vmf->page);
-+ kunmap(vmf->page);
-+ return VM_FAULT_MAJOR;
-+}
-+
-+static struct vm_operations_struct pax_vm_ops = {
-+ .close = pax_emuplt_close,
-+ .fault = pax_emuplt_fault
-+};
-+
-+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
-+{
-+ int ret;
-+
-+ vma->vm_mm = current->mm;
-+ vma->vm_start = addr;
-+ vma->vm_end = addr + PAGE_SIZE;
-+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
-+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
-+ vma->vm_ops = &pax_vm_ops;
-+
-+ ret = insert_vm_struct(current->mm, vma);
-+ if (ret)
-+ return ret;
-+
-+ ++current->mm->total_vm;
-+ return 0;
-+}
-+
-+/*
-+ * PaX: decide what to do with offenders (regs->pc = fault address)
-+ *
-+ * returns 1 when task should be killed
-+ * 2 when patched PLT trampoline was detected
-+ * 3 when unpatched PLT trampoline was detected
-+ */
-+static int pax_handle_fetch_fault(struct pt_regs *regs)
-+{
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ int err;
-+
-+ do { /* PaX: patched PLT emulation #1 */
-+ unsigned int sethi1, sethi2, jmpl;
-+
-+ err = get_user(sethi1, (unsigned int *)regs->pc);
-+ err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
-+ err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
-+ (sethi2 & 0xFFC00000U) == 0x03000000U &&
-+ (jmpl & 0xFFFFE000U) == 0x81C06000U)
-+ {
-+ unsigned int addr;
-+
-+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
-+ addr = regs->u_regs[UREG_G1];
-+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
-+ regs->pc = addr;
-+ regs->npc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ { /* PaX: patched PLT emulation #2 */
-+ unsigned int ba;
-+
-+ err = get_user(ba, (unsigned int *)regs->pc);
-+
-+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) {
-+ unsigned int addr;
-+
-+ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
-+ regs->pc = addr;
-+ regs->npc = addr+4;
-+ return 2;
-+ }
-+ }
-+
-+ do { /* PaX: patched PLT emulation #3 */
-+ unsigned int sethi, jmpl, nop;
-+
-+ err = get_user(sethi, (unsigned int *)regs->pc);
-+ err |= get_user(jmpl, (unsigned int *)(regs->pc+4));
-+ err |= get_user(nop, (unsigned int *)(regs->pc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
-+ (jmpl & 0xFFFFE000U) == 0x81C06000U &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned int addr;
-+
-+ addr = (sethi & 0x003FFFFFU) << 10;
-+ regs->u_regs[UREG_G1] = addr;
-+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
-+ regs->pc = addr;
-+ regs->npc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: unpatched PLT emulation step 1 */
-+ unsigned int sethi, ba, nop;
-+
-+ err = get_user(sethi, (unsigned int *)regs->pc);
-+ err |= get_user(ba, (unsigned int *)(regs->pc+4));
-+ err |= get_user(nop, (unsigned int *)(regs->pc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
-+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned int addr, save, call;
-+
-+ if ((ba & 0xFFC00000U) == 0x30800000U)
-+ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
-+ else
-+ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
-+
-+ err = get_user(save, (unsigned int *)addr);
-+ err |= get_user(call, (unsigned int *)(addr+4));
-+ err |= get_user(nop, (unsigned int *)(addr+8));
-+ if (err)
-+ break;
-+
-+ if (save == 0x9DE3BFA8U &&
-+ (call & 0xC0000000U) == 0x40000000U &&
-+ nop == 0x01000000U)
-+ {
-+ struct vm_area_struct *vma;
-+ unsigned long call_dl_resolve;
-+
-+ down_read(¤t->mm->mmap_sem);
-+ call_dl_resolve = current->mm->call_dl_resolve;
-+ up_read(¤t->mm->mmap_sem);
-+ if (likely(call_dl_resolve))
-+ goto emulate;
-+
-+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+
-+ down_write(¤t->mm->mmap_sem);
-+ if (current->mm->call_dl_resolve) {
-+ call_dl_resolve = current->mm->call_dl_resolve;
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ goto emulate;
-+ }
-+
-+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
-+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ if (pax_insert_vma(vma, call_dl_resolve)) {
-+ up_write(¤t->mm->mmap_sem);
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ current->mm->call_dl_resolve = call_dl_resolve;
-+ up_write(¤t->mm->mmap_sem);
-+
-+emulate:
-+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
-+ regs->pc = call_dl_resolve;
-+ regs->npc = addr+4;
-+ return 3;
-+ }
-+ }
-+ } while (0);
-+
-+ do { /* PaX: unpatched PLT emulation step 2 */
-+ unsigned int save, call, nop;
-+
-+ err = get_user(save, (unsigned int *)(regs->pc-4));
-+ err |= get_user(call, (unsigned int *)regs->pc);
-+ err |= get_user(nop, (unsigned int *)(regs->pc+4));
-+ if (err)
-+ break;
-+
-+ if (save == 0x9DE3BFA8U &&
-+ (call & 0xC0000000U) == 0x40000000U &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
-+
-+ regs->u_regs[UREG_RETPC] = regs->pc;
-+ regs->pc = dl_resolve;
-+ regs->npc = dl_resolve+4;
-+ return 3;
-+ }
-+ } while (0);
-+#endif
-+
-+ return 1;
-+}
-+
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 5; i++) {
-+ unsigned int c;
-+ if (get_user(c, (unsigned int *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%08x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-+
- asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
- unsigned long address)
- {
-@@ -231,6 +477,24 @@ good_area:
- if(!(vma->vm_flags & VM_WRITE))
- goto bad_area;
- } else {
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
-+ up_read(&mm->mmap_sem);
-+ switch (pax_handle_fetch_fault(regs)) {
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ case 2:
-+ case 3:
-+ return;
-+#endif
-+
-+ }
-+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
-+ do_group_exit(SIGKILL);
-+ }
-+#endif
-+
- /* Allow reads even for write-only mappings */
- if(!(vma->vm_flags & (VM_READ | VM_EXEC)))
- goto bad_area;
-diff -urNp linux-2.6.28.7/arch/sparc/mm/init.c linux-2.6.28.7/arch/sparc/mm/init.c
---- linux-2.6.28.7/arch/sparc/mm/init.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/mm/init.c 2009-02-21 09:37:48.000000000 -0500
-@@ -313,6 +313,9 @@ extern void device_scan(void);
- pgprot_t PAGE_SHARED __read_mostly;
- EXPORT_SYMBOL(PAGE_SHARED);
-
-+pgprot_t PAGE_SHARED_NOEXEC __read_mostly;
-+EXPORT_SYMBOL(PAGE_SHARED_NOEXEC);
-+
- void __init paging_init(void)
- {
- switch(sparc_cpu_model) {
-@@ -338,17 +341,17 @@ void __init paging_init(void)
-
- /* Initialize the protection map with non-constant, MMU dependent values. */
- protection_map[0] = PAGE_NONE;
-- protection_map[1] = PAGE_READONLY;
-- protection_map[2] = PAGE_COPY;
-- protection_map[3] = PAGE_COPY;
-+ protection_map[1] = PAGE_READONLY_NOEXEC;
-+ protection_map[2] = PAGE_COPY_NOEXEC;
-+ protection_map[3] = PAGE_COPY_NOEXEC;
- protection_map[4] = PAGE_READONLY;
- protection_map[5] = PAGE_READONLY;
- protection_map[6] = PAGE_COPY;
- protection_map[7] = PAGE_COPY;
- protection_map[8] = PAGE_NONE;
-- protection_map[9] = PAGE_READONLY;
-- protection_map[10] = PAGE_SHARED;
-- protection_map[11] = PAGE_SHARED;
-+ protection_map[9] = PAGE_READONLY_NOEXEC;
-+ protection_map[10] = PAGE_SHARED_NOEXEC;
-+ protection_map[11] = PAGE_SHARED_NOEXEC;
- protection_map[12] = PAGE_READONLY;
- protection_map[13] = PAGE_READONLY;
- protection_map[14] = PAGE_SHARED;
-diff -urNp linux-2.6.28.7/arch/sparc/mm/srmmu.c linux-2.6.28.7/arch/sparc/mm/srmmu.c
---- linux-2.6.28.7/arch/sparc/mm/srmmu.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc/mm/srmmu.c 2009-02-21 09:37:48.000000000 -0500
-@@ -2162,6 +2162,13 @@ void __init ld_mmu_srmmu(void)
- PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED);
- BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY));
- BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY));
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ PAGE_SHARED_NOEXEC = pgprot_val(SRMMU_PAGE_SHARED_NOEXEC);
-+ BTFIXUPSET_INT(page_copy_noexec, pgprot_val(SRMMU_PAGE_COPY_NOEXEC));
-+ BTFIXUPSET_INT(page_readonly_noexec, pgprot_val(SRMMU_PAGE_RDONLY_NOEXEC));
-+#endif
-+
- BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL));
- page_kernel = pgprot_val(SRMMU_PAGE_KERNEL);
-
-diff -urNp linux-2.6.28.7/arch/sparc64/kernel/Makefile linux-2.6.28.7/arch/sparc64/kernel/Makefile
---- linux-2.6.28.7/arch/sparc64/kernel/Makefile 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc64/kernel/Makefile 2009-02-21 09:37:48.000000000 -0500
-@@ -3,7 +3,7 @@
- #
-
- EXTRA_AFLAGS := -ansi
--EXTRA_CFLAGS := -Werror
-+#EXTRA_CFLAGS := -Werror
-
- CFLAGS_REMOVE_ftrace.o = -pg
-
-diff -urNp linux-2.6.28.7/arch/sparc64/kernel/sys_sparc.c linux-2.6.28.7/arch/sparc64/kernel/sys_sparc.c
---- linux-2.6.28.7/arch/sparc64/kernel/sys_sparc.c 2009-02-08 00:54:27.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc64/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500
-@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(str
- /* We do not accept a shared mapping if it would violate
- * cache aliasing constraints.
- */
-- if ((flags & MAP_SHARED) &&
-+ if ((filp || (flags & MAP_SHARED)) &&
- ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
- return -EINVAL;
- return addr;
-@@ -139,6 +139,10 @@ unsigned long arch_get_unmapped_area(str
- if (filp || (flags & MAP_SHARED))
- do_color_align = 1;
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- if (addr) {
- if (do_color_align)
- addr = COLOUR_ALIGN(addr, pgoff);
-@@ -152,9 +156,9 @@ unsigned long arch_get_unmapped_area(str
- }
-
- if (len > mm->cached_hole_size) {
-- start_addr = addr = mm->free_area_cache;
-+ start_addr = addr = mm->free_area_cache;
- } else {
-- start_addr = addr = TASK_UNMAPPED_BASE;
-+ start_addr = addr = mm->mmap_base;
- mm->cached_hole_size = 0;
- }
-
-@@ -174,8 +178,8 @@ full_search:
- vma = find_vma(mm, VA_EXCLUDE_END);
- }
- if (unlikely(task_size < addr)) {
-- if (start_addr != TASK_UNMAPPED_BASE) {
-- start_addr = addr = TASK_UNMAPPED_BASE;
-+ if (start_addr != mm->mmap_base) {
-+ start_addr = addr = mm->mmap_base;
- mm->cached_hole_size = 0;
- goto full_search;
- }
-@@ -215,7 +219,7 @@ arch_get_unmapped_area_topdown(struct fi
- /* We do not accept a shared mapping if it would violate
- * cache aliasing constraints.
- */
-- if ((flags & MAP_SHARED) &&
-+ if ((filp || (flags & MAP_SHARED)) &&
- ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
- return -EINVAL;
- return addr;
-@@ -378,6 +382,12 @@ void arch_pick_mmap_layout(struct mm_str
- current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY ||
- sysctl_legacy_va_layout) {
- mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
- mm->get_unmapped_area = arch_get_unmapped_area;
- mm->unmap_area = arch_unmap_area;
- } else {
-@@ -392,6 +402,12 @@ void arch_pick_mmap_layout(struct mm_str
- gap = (task_size / 6 * 5);
-
- mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
-+#endif
-+
- mm->get_unmapped_area = arch_get_unmapped_area_topdown;
- mm->unmap_area = arch_unmap_area_topdown;
- }
-diff -urNp linux-2.6.28.7/arch/sparc64/mm/fault.c linux-2.6.28.7/arch/sparc64/mm/fault.c
---- linux-2.6.28.7/arch/sparc64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -19,6 +19,9 @@
- #include <linux/interrupt.h>
- #include <linux/kprobes.h>
- #include <linux/kdebug.h>
-+#include <linux/slab.h>
-+#include <linux/pagemap.h>
-+#include <linux/compiler.h>
-
- #include <asm/page.h>
- #include <asm/pgtable.h>
-@@ -224,6 +227,367 @@ cannot_handle:
- unhandled_fault (address, current, regs);
- }
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+#ifdef CONFIG_PAX_EMUPLT
-+static void pax_emuplt_close(struct vm_area_struct *vma)
-+{
-+ vma->vm_mm->call_dl_resolve = 0UL;
-+}
-+
-+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-+{
-+ unsigned int *kaddr;
-+
-+ vmf->page = alloc_page(GFP_HIGHUSER);
-+ if (!vmf->page)
-+ return VM_FAULT_OOM;
-+
-+ kaddr = kmap(vmf->page);
-+ memset(kaddr, 0, PAGE_SIZE);
-+ kaddr[0] = 0x9DE3BFA8U; /* save */
-+ flush_dcache_page(vmf->page);
-+ kunmap(vmf->page);
-+ return VM_FAULT_MAJOR;
-+}
-+
-+static struct vm_operations_struct pax_vm_ops = {
-+ .close = pax_emuplt_close,
-+ .fault = pax_emuplt_fault
-+};
-+
-+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
-+{
-+ int ret;
-+
-+ vma->vm_mm = current->mm;
-+ vma->vm_start = addr;
-+ vma->vm_end = addr + PAGE_SIZE;
-+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
-+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
-+ vma->vm_ops = &pax_vm_ops;
-+
-+ ret = insert_vm_struct(current->mm, vma);
-+ if (ret)
-+ return ret;
-+
-+ ++current->mm->total_vm;
-+ return 0;
-+}
-+#endif
-+
-+/*
-+ * PaX: decide what to do with offenders (regs->tpc = fault address)
-+ *
-+ * returns 1 when task should be killed
-+ * 2 when patched PLT trampoline was detected
-+ * 3 when unpatched PLT trampoline was detected
-+ */
-+static int pax_handle_fetch_fault(struct pt_regs *regs)
-+{
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ int err;
-+
-+ do { /* PaX: patched PLT emulation #1 */
-+ unsigned int sethi1, sethi2, jmpl;
-+
-+ err = get_user(sethi1, (unsigned int *)regs->tpc);
-+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
-+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
-+ (sethi2 & 0xFFC00000U) == 0x03000000U &&
-+ (jmpl & 0xFFFFE000U) == 0x81C06000U)
-+ {
-+ unsigned long addr;
-+
-+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
-+ addr = regs->u_regs[UREG_G1];
-+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
-+ regs->tpc = addr;
-+ regs->tnpc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ { /* PaX: patched PLT emulation #2 */
-+ unsigned int ba;
-+
-+ err = get_user(ba, (unsigned int *)regs->tpc);
-+
-+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) {
-+ unsigned long addr;
-+
-+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
-+ regs->tpc = addr;
-+ regs->tnpc = addr+4;
-+ return 2;
-+ }
-+ }
-+
-+ do { /* PaX: patched PLT emulation #3 */
-+ unsigned int sethi, jmpl, nop;
-+
-+ err = get_user(sethi, (unsigned int *)regs->tpc);
-+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+4));
-+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
-+ (jmpl & 0xFFFFE000U) == 0x81C06000U &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned long addr;
-+
-+ addr = (sethi & 0x003FFFFFU) << 10;
-+ regs->u_regs[UREG_G1] = addr;
-+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
-+ regs->tpc = addr;
-+ regs->tnpc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: patched PLT emulation #4 */
-+ unsigned int mov1, call, mov2;
-+
-+ err = get_user(mov1, (unsigned int *)regs->tpc);
-+ err |= get_user(call, (unsigned int *)(regs->tpc+4));
-+ err |= get_user(mov2, (unsigned int *)(regs->tpc+8));
-+
-+ if (err)
-+ break;
-+
-+ if (mov1 == 0x8210000FU &&
-+ (call & 0xC0000000U) == 0x40000000U &&
-+ mov2 == 0x9E100001U)
-+ {
-+ unsigned long addr;
-+
-+ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
-+ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
-+ regs->tpc = addr;
-+ regs->tnpc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: patched PLT emulation #5 */
-+ unsigned int sethi1, sethi2, or1, or2, sllx, jmpl, nop;
-+
-+ err = get_user(sethi1, (unsigned int *)regs->tpc);
-+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
-+ err |= get_user(or1, (unsigned int *)(regs->tpc+8));
-+ err |= get_user(or2, (unsigned int *)(regs->tpc+12));
-+ err |= get_user(sllx, (unsigned int *)(regs->tpc+16));
-+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
-+ err |= get_user(nop, (unsigned int *)(regs->tpc+24));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
-+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
-+ (or1 & 0xFFFFE000U) == 0x82106000U &&
-+ (or2 & 0xFFFFE000U) == 0x8A116000U &&
-+ sllx == 0x83287020 &&
-+ jmpl == 0x81C04005U &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned long addr;
-+
-+ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
-+ regs->u_regs[UREG_G1] <<= 32;
-+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
-+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
-+ regs->tpc = addr;
-+ regs->tnpc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: patched PLT emulation #6 */
-+ unsigned int sethi1, sethi2, sllx, or, jmpl, nop;
-+
-+ err = get_user(sethi1, (unsigned int *)regs->tpc);
-+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
-+ err |= get_user(sllx, (unsigned int *)(regs->tpc+8));
-+ err |= get_user(or, (unsigned int *)(regs->tpc+12));
-+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+16));
-+ err |= get_user(nop, (unsigned int *)(regs->tpc+20));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
-+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
-+ sllx == 0x83287020 &&
-+ (or & 0xFFFFE000U) == 0x8A116000U &&
-+ jmpl == 0x81C04005U &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned long addr;
-+
-+ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
-+ regs->u_regs[UREG_G1] <<= 32;
-+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
-+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
-+ regs->tpc = addr;
-+ regs->tnpc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: patched PLT emulation #7 */
-+ unsigned int sethi, ba, nop;
-+
-+ err = get_user(sethi, (unsigned int *)regs->tpc);
-+ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
-+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
-+ (ba & 0xFFF00000U) == 0x30600000U &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned long addr;
-+
-+ addr = (sethi & 0x003FFFFFU) << 10;
-+ regs->u_regs[UREG_G1] = addr;
-+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
-+ regs->tpc = addr;
-+ regs->tnpc = addr+4;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: unpatched PLT emulation step 1 */
-+ unsigned int sethi, ba, nop;
-+
-+ err = get_user(sethi, (unsigned int *)regs->tpc);
-+ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
-+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
-+
-+ if (err)
-+ break;
-+
-+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
-+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned long addr;
-+ unsigned int save, call;
-+
-+ if ((ba & 0xFFC00000U) == 0x30800000U)
-+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
-+ else
-+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
-+
-+ err = get_user(save, (unsigned int *)addr);
-+ err |= get_user(call, (unsigned int *)(addr+4));
-+ err |= get_user(nop, (unsigned int *)(addr+8));
-+ if (err)
-+ break;
-+
-+ if (save == 0x9DE3BFA8U &&
-+ (call & 0xC0000000U) == 0x40000000U &&
-+ nop == 0x01000000U)
-+ {
-+ struct vm_area_struct *vma;
-+ unsigned long call_dl_resolve;
-+
-+ down_read(¤t->mm->mmap_sem);
-+ call_dl_resolve = current->mm->call_dl_resolve;
-+ up_read(¤t->mm->mmap_sem);
-+ if (likely(call_dl_resolve))
-+ goto emulate;
-+
-+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+
-+ down_write(¤t->mm->mmap_sem);
-+ if (current->mm->call_dl_resolve) {
-+ call_dl_resolve = current->mm->call_dl_resolve;
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ goto emulate;
-+ }
-+
-+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
-+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
-+ up_write(¤t->mm->mmap_sem);
-+ if (vma)
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ if (pax_insert_vma(vma, call_dl_resolve)) {
-+ up_write(¤t->mm->mmap_sem);
-+ kmem_cache_free(vm_area_cachep, vma);
-+ return 1;
-+ }
-+
-+ current->mm->call_dl_resolve = call_dl_resolve;
-+ up_write(¤t->mm->mmap_sem);
-+
-+emulate:
-+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
-+ regs->tpc = call_dl_resolve;
-+ regs->tnpc = addr+4;
-+ return 3;
-+ }
-+ }
-+ } while (0);
-+
-+ do { /* PaX: unpatched PLT emulation step 2 */
-+ unsigned int save, call, nop;
-+
-+ err = get_user(save, (unsigned int *)(regs->tpc-4));
-+ err |= get_user(call, (unsigned int *)regs->tpc);
-+ err |= get_user(nop, (unsigned int *)(regs->tpc+4));
-+ if (err)
-+ break;
-+
-+ if (save == 0x9DE3BFA8U &&
-+ (call & 0xC0000000U) == 0x40000000U &&
-+ nop == 0x01000000U)
-+ {
-+ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
-+
-+ regs->u_regs[UREG_RETPC] = regs->tpc;
-+ regs->tpc = dl_resolve;
-+ regs->tnpc = dl_resolve+4;
-+ return 3;
-+ }
-+ } while (0);
-+#endif
-+
-+ return 1;
-+}
-+
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ unsigned long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 5; i++) {
-+ unsigned int c;
-+ if (get_user(c, (unsigned int *)pc+i))
-+ printk(KERN_CONT "???????? ");
-+ else
-+ printk(KERN_CONT "%08x ", c);
-+ }
-+ printk("\n");
-+}
-+#endif
-+
- asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
- {
- struct mm_struct *mm = current->mm;
-@@ -265,8 +629,10 @@ asmlinkage void __kprobes do_sparc64_fau
- goto intr_or_no_mm;
-
- if (test_thread_flag(TIF_32BIT)) {
-- if (!(regs->tstate & TSTATE_PRIV))
-+ if (!(regs->tstate & TSTATE_PRIV)) {
- regs->tpc &= 0xffffffff;
-+ regs->tnpc &= 0xffffffff;
-+ }
- address &= 0xffffffff;
- }
-
-@@ -283,6 +649,29 @@ asmlinkage void __kprobes do_sparc64_fau
- if (!vma)
- goto bad_area;
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ /* PaX: detect ITLB misses on non-exec pages */
-+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
-+ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
-+ {
-+ if (address != regs->tpc)
-+ goto good_area;
-+
-+ up_read(&mm->mmap_sem);
-+ switch (pax_handle_fetch_fault(regs)) {
-+
-+#ifdef CONFIG_PAX_EMUPLT
-+ case 2:
-+ case 3:
-+ return;
-+#endif
-+
-+ }
-+ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
-+ do_group_exit(SIGKILL);
-+ }
-+#endif
-+
- /* Pure DTLB misses do not tell us whether the fault causing
- * load/store/atomic was a write or not, it only says that there
- * was no match. So in such a case we (carefully) read the
-diff -urNp linux-2.6.28.7/arch/sparc64/mm/Makefile linux-2.6.28.7/arch/sparc64/mm/Makefile
---- linux-2.6.28.7/arch/sparc64/mm/Makefile 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/sparc64/mm/Makefile 2009-02-21 09:37:48.000000000 -0500
-@@ -2,7 +2,7 @@
- #
-
- EXTRA_AFLAGS := -ansi
--EXTRA_CFLAGS := -Werror
-+#EXTRA_CFLAGS := -Werror
-
- obj-y := ultra.o tlb.o tsb.o fault.o init.o generic.o
-
-diff -urNp linux-2.6.28.7/arch/um/include/asm/kmap_types.h linux-2.6.28.7/arch/um/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/um/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/um/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -23,6 +23,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/arch/um/include/asm/page.h linux-2.6.28.7/arch/um/include/asm/page.h
---- linux-2.6.28.7/arch/um/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/um/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500
-@@ -14,6 +14,9 @@
- #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
- #define PAGE_MASK (~(PAGE_SIZE-1))
-
-+#define ktla_ktva(addr) (addr)
-+#define ktva_ktla(addr) (addr)
-+
- #ifndef __ASSEMBLY__
-
- struct page;
-diff -urNp linux-2.6.28.7/arch/um/sys-i386/syscalls.c linux-2.6.28.7/arch/um/sys-i386/syscalls.c
---- linux-2.6.28.7/arch/um/sys-i386/syscalls.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/um/sys-i386/syscalls.c 2009-02-21 09:37:48.000000000 -0500
-@@ -11,6 +11,21 @@
- #include "asm/uaccess.h"
- #include "asm/unistd.h"
-
-+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
-+{
-+ unsigned long pax_task_size = TASK_SIZE;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-+
-+ if (len > pax_task_size || addr > pax_task_size - len)
-+ return -EINVAL;
-+
-+ return 0;
-+}
-+
- /*
- * Perform the select(nd, in, out, ex, tv) and mmap() system
- * calls. Linux/i386 didn't use to be able to handle more than
-diff -urNp linux-2.6.28.7/arch/x86/boot/bitops.h linux-2.6.28.7/arch/x86/boot/bitops.h
---- linux-2.6.28.7/arch/x86/boot/bitops.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/bitops.h 2009-02-21 09:37:48.000000000 -0500
-@@ -26,7 +26,7 @@ static inline int variable_test_bit(int
- u8 v;
- const u32 *p = (const u32 *)addr;
-
-- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
-+ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
- return v;
- }
-
-@@ -37,7 +37,7 @@ static inline int variable_test_bit(int
-
- static inline void set_bit(int nr, void *addr)
- {
-- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
-+ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
- }
-
- #endif /* BOOT_BITOPS_H */
-diff -urNp linux-2.6.28.7/arch/x86/boot/boot.h linux-2.6.28.7/arch/x86/boot/boot.h
---- linux-2.6.28.7/arch/x86/boot/boot.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/boot.h 2009-02-21 09:37:48.000000000 -0500
-@@ -80,7 +80,7 @@ static inline void io_delay(void)
- static inline u16 ds(void)
- {
- u16 seg;
-- asm("movw %%ds,%0" : "=rm" (seg));
-+ asm volatile("movw %%ds,%0" : "=rm" (seg));
- return seg;
- }
-
-@@ -176,7 +176,7 @@ static inline void wrgs32(u32 v, addr_t
- static inline int memcmp(const void *s1, const void *s2, size_t len)
- {
- u8 diff;
-- asm("repe; cmpsb; setnz %0"
-+ asm volatile("repe; cmpsb; setnz %0"
- : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
- return diff;
- }
-diff -urNp linux-2.6.28.7/arch/x86/boot/compressed/head_32.S linux-2.6.28.7/arch/x86/boot/compressed/head_32.S
---- linux-2.6.28.7/arch/x86/boot/compressed/head_32.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/compressed/head_32.S 2009-02-21 09:37:48.000000000 -0500
-@@ -70,7 +70,7 @@ startup_32:
- addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebx
- andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebx
- #else
-- movl $LOAD_PHYSICAL_ADDR, %ebx
-+ movl $____LOAD_PHYSICAL_ADDR, %ebx
- #endif
-
- /* Replace the compressed data size with the uncompressed size */
-@@ -105,7 +105,7 @@ startup_32:
- addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebp
- andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebp
- #else
-- movl $LOAD_PHYSICAL_ADDR, %ebp
-+ movl $____LOAD_PHYSICAL_ADDR, %ebp
- #endif
-
- /*
-@@ -160,16 +160,15 @@ relocated:
- * and where it was actually loaded.
- */
- movl %ebp, %ebx
-- subl $LOAD_PHYSICAL_ADDR, %ebx
-+ subl $____LOAD_PHYSICAL_ADDR, %ebx
- jz 2f /* Nothing to be done if loaded at compiled addr. */
- /*
- * Process relocations.
- */
-
- 1: subl $4, %edi
-- movl 0(%edi), %ecx
-- testl %ecx, %ecx
-- jz 2f
-+ movl (%edi), %ecx
-+ jecxz 2f
- addl %ebx, -__PAGE_OFFSET(%ebx, %ecx)
- jmp 1b
- 2:
-diff -urNp linux-2.6.28.7/arch/x86/boot/compressed/misc.c linux-2.6.28.7/arch/x86/boot/compressed/misc.c
---- linux-2.6.28.7/arch/x86/boot/compressed/misc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/compressed/misc.c 2009-02-21 09:37:48.000000000 -0500
-@@ -373,7 +373,7 @@ static void parse_elf(void *output)
- case PT_LOAD:
- #ifdef CONFIG_RELOCATABLE
- dest = output;
-- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
-+ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
- #else
- dest = (void *)(phdr->p_paddr);
- #endif
-@@ -425,7 +425,7 @@ asmlinkage void decompress_kernel(void *
- if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff))
- error("Destination address too large");
- #ifndef CONFIG_RELOCATABLE
-- if ((u32)output != LOAD_PHYSICAL_ADDR)
-+ if ((u32)output != ____LOAD_PHYSICAL_ADDR)
- error("Wrong destination address");
- #endif
- #endif
-diff -urNp linux-2.6.28.7/arch/x86/boot/compressed/relocs.c linux-2.6.28.7/arch/x86/boot/compressed/relocs.c
---- linux-2.6.28.7/arch/x86/boot/compressed/relocs.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/compressed/relocs.c 2009-02-21 09:37:48.000000000 -0500
-@@ -10,8 +10,11 @@
- #define USE_BSD
- #include <endian.h>
-
-+#include "../../../../include/linux/autoconf.h"
-+
- #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
- static Elf32_Ehdr ehdr;
-+static Elf32_Phdr *phdr;
- static unsigned long reloc_count, reloc_idx;
- static unsigned long *relocs;
-
-@@ -245,6 +248,36 @@ static void read_ehdr(FILE *fp)
- }
- }
-
-+static void read_phdrs(FILE *fp)
-+{
-+ int i;
-+
-+ phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr));
-+ if (!phdr) {
-+ die("Unable to allocate %d program headers\n",
-+ ehdr.e_phnum);
-+ }
-+ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
-+ die("Seek to %d failed: %s\n",
-+ ehdr.e_phoff, strerror(errno));
-+ }
-+ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
-+ die("Cannot read ELF program headers: %s\n",
-+ strerror(errno));
-+ }
-+ for(i = 0; i < ehdr.e_phnum; i++) {
-+ phdr[i].p_type = elf32_to_cpu(phdr[i].p_type);
-+ phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset);
-+ phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr);
-+ phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr);
-+ phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz);
-+ phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz);
-+ phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags);
-+ phdr[i].p_align = elf32_to_cpu(phdr[i].p_align);
-+ }
-+
-+}
-+
- static void read_shdrs(FILE *fp)
- {
- int i;
-@@ -341,6 +374,8 @@ static void read_symtabs(FILE *fp)
- static void read_relocs(FILE *fp)
- {
- int i,j;
-+ uint32_t base;
-+
- for (i = 0; i < ehdr.e_shnum; i++) {
- struct section *sec = &secs[i];
- if (sec->shdr.sh_type != SHT_REL) {
-@@ -360,9 +395,18 @@ static void read_relocs(FILE *fp)
- die("Cannot read symbol table: %s\n",
- strerror(errno));
- }
-+ base = 0;
-+ for (j = 0; j < ehdr.e_phnum; j++) {
-+ if (phdr[j].p_type != PT_LOAD )
-+ continue;
-+ if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz)
-+ continue;
-+ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
-+ break;
-+ }
- for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
- Elf32_Rel *rel = &sec->reltab[j];
-- rel->r_offset = elf32_to_cpu(rel->r_offset);
-+ rel->r_offset = elf32_to_cpu(rel->r_offset) + base;
- rel->r_info = elf32_to_cpu(rel->r_info);
- }
- }
-@@ -504,6 +548,23 @@ static void walk_relocs(void (*visit)(El
- if (sym->st_shndx == SHN_ABS) {
- continue;
- }
-+ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
-+ if (!strcmp(sec_name(sym->st_shndx), ".data.percpu") && strncmp(sym_name(sym_strtab, sym), "__per_cpu_", 10))
-+ continue;
-+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32)
-+ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
-+ if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
-+ continue;
-+ if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
-+ continue;
-+ if (!strcmp(sec_name(sym->st_shndx), ".text.head")) {
-+ if (strcmp(sym_name(sym_strtab, sym), "__init_end") &&
-+ strcmp(sym_name(sym_strtab, sym), "KERNEL_TEXT_OFFSET"))
-+ continue;
-+ }
-+ if (!strcmp(sec_name(sym->st_shndx), ".text"))
-+ continue;
-+#endif
- if (r_type == R_386_PC32) {
- /* PC relative relocations don't need to be adjusted */
- }
-@@ -631,6 +692,7 @@ int main(int argc, char **argv)
- fname, strerror(errno));
- }
- read_ehdr(fp);
-+ read_phdrs(fp);
- read_shdrs(fp);
- read_strtabs(fp);
- read_symtabs(fp);
-diff -urNp linux-2.6.28.7/arch/x86/boot/cpucheck.c linux-2.6.28.7/arch/x86/boot/cpucheck.c
---- linux-2.6.28.7/arch/x86/boot/cpucheck.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/cpucheck.c 2009-02-21 09:37:48.000000000 -0500
-@@ -74,7 +74,7 @@ static int has_fpu(void)
- u16 fcw = -1, fsw = -1;
- u32 cr0;
-
-- asm("movl %%cr0,%0" : "=r" (cr0));
-+ asm volatile("movl %%cr0,%0" : "=r" (cr0));
- if (cr0 & (X86_CR0_EM|X86_CR0_TS)) {
- cr0 &= ~(X86_CR0_EM|X86_CR0_TS);
- asm volatile("movl %0,%%cr0" : : "r" (cr0));
-@@ -90,7 +90,7 @@ static int has_eflag(u32 mask)
- {
- u32 f0, f1;
-
-- asm("pushfl ; "
-+ asm volatile("pushfl ; "
- "pushfl ; "
- "popl %0 ; "
- "movl %0,%1 ; "
-@@ -115,7 +115,7 @@ static void get_flags(void)
- set_bit(X86_FEATURE_FPU, cpu.flags);
-
- if (has_eflag(X86_EFLAGS_ID)) {
-- asm("cpuid"
-+ asm volatile("cpuid"
- : "=a" (max_intel_level),
- "=b" (cpu_vendor[0]),
- "=d" (cpu_vendor[1]),
-@@ -124,7 +124,7 @@ static void get_flags(void)
-
- if (max_intel_level >= 0x00000001 &&
- max_intel_level <= 0x0000ffff) {
-- asm("cpuid"
-+ asm volatile("cpuid"
- : "=a" (tfms),
- "=c" (cpu.flags[4]),
- "=d" (cpu.flags[0])
-@@ -136,7 +136,7 @@ static void get_flags(void)
- cpu.model += ((tfms >> 16) & 0xf) << 4;
- }
-
-- asm("cpuid"
-+ asm volatile("cpuid"
- : "=a" (max_amd_level)
- : "a" (0x80000000)
- : "ebx", "ecx", "edx");
-@@ -144,7 +144,7 @@ static void get_flags(void)
- if (max_amd_level >= 0x80000001 &&
- max_amd_level <= 0x8000ffff) {
- u32 eax = 0x80000001;
-- asm("cpuid"
-+ asm volatile("cpuid"
- : "+a" (eax),
- "=c" (cpu.flags[6]),
- "=d" (cpu.flags[1])
-@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *r
- u32 ecx = MSR_K7_HWCR;
- u32 eax, edx;
-
-- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
-+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
- eax &= ~(1 << 15);
-- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
-+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
-
- get_flags(); /* Make sure it really did something */
- err = check_flags();
-@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *r
- u32 ecx = MSR_VIA_FCR;
- u32 eax, edx;
-
-- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
-+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
- eax |= (1<<1)|(1<<7);
-- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
-+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
-
- set_bit(X86_FEATURE_CX8, cpu.flags);
- err = check_flags();
-@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *r
- u32 eax, edx;
- u32 level = 1;
-
-- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
-- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
-- asm("cpuid"
-+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
-+ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
-+ asm volatile("cpuid"
- : "+a" (level), "=d" (cpu.flags[0])
- : : "ecx", "ebx");
-- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
-+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
-
- err = check_flags();
- }
-diff -urNp linux-2.6.28.7/arch/x86/boot/edd.c linux-2.6.28.7/arch/x86/boot/edd.c
---- linux-2.6.28.7/arch/x86/boot/edd.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/edd.c 2009-02-21 09:37:48.000000000 -0500
-@@ -81,7 +81,7 @@ static int get_edd_info(u8 devno, struct
- ax = 0x4100;
- bx = EDDMAGIC1;
- dx = devno;
-- asm("pushfl; stc; int $0x13; setc %%al; popfl"
-+ asm volatile("pushfl; stc; int $0x13; setc %%al; popfl"
- : "+a" (ax), "+b" (bx), "=c" (cx), "+d" (dx)
- : : "esi", "edi");
-
-@@ -100,7 +100,7 @@ static int get_edd_info(u8 devno, struct
- ei->params.length = sizeof(ei->params);
- ax = 0x4800;
- dx = devno;
-- asm("pushfl; int $0x13; popfl"
-+ asm volatile("pushfl; int $0x13; popfl"
- : "+a" (ax), "+d" (dx), "=m" (ei->params)
- : "S" (&ei->params)
- : "ebx", "ecx", "edi");
-@@ -111,7 +111,7 @@ static int get_edd_info(u8 devno, struct
- ax = 0x0800;
- dx = devno;
- di = 0;
-- asm("pushw %%es; "
-+ asm volatile("pushw %%es; "
- "movw %%di,%%es; "
- "pushfl; stc; int $0x13; setc %%al; popfl; "
- "popw %%es"
-diff -urNp linux-2.6.28.7/arch/x86/boot/main.c linux-2.6.28.7/arch/x86/boot/main.c
---- linux-2.6.28.7/arch/x86/boot/main.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/main.c 2009-02-21 09:37:48.000000000 -0500
-@@ -78,7 +78,7 @@ static void query_ist(void)
- if (cpu.level < 6)
- return;
-
-- asm("int $0x15"
-+ asm volatile("int $0x15"
- : "=a" (boot_params.ist_info.signature),
- "=b" (boot_params.ist_info.command),
- "=c" (boot_params.ist_info.event),
-diff -urNp linux-2.6.28.7/arch/x86/boot/mca.c linux-2.6.28.7/arch/x86/boot/mca.c
---- linux-2.6.28.7/arch/x86/boot/mca.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/mca.c 2009-02-21 09:37:48.000000000 -0500
-@@ -19,7 +19,7 @@ int query_mca(void)
- u8 err;
- u16 es, bx, len;
-
-- asm("pushw %%es ; "
-+ asm volatile("pushw %%es ; "
- "int $0x15 ; "
- "setc %0 ; "
- "movw %%es, %1 ; "
-diff -urNp linux-2.6.28.7/arch/x86/boot/memory.c linux-2.6.28.7/arch/x86/boot/memory.c
---- linux-2.6.28.7/arch/x86/boot/memory.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/memory.c 2009-02-21 09:37:48.000000000 -0500
-@@ -30,7 +30,7 @@ static int detect_memory_e820(void)
- /* Important: %edx is clobbered by some BIOSes,
- so it must be either used for the error output
- or explicitly marked clobbered. */
-- asm("int $0x15; setc %0"
-+ asm volatile("int $0x15; setc %0"
- : "=d" (err), "+b" (next), "=a" (id), "+c" (size),
- "=m" (*desc)
- : "D" (desc), "d" (SMAP), "a" (0xe820));
-@@ -65,7 +65,7 @@ static int detect_memory_e801(void)
-
- bx = cx = dx = 0;
- ax = 0xe801;
-- asm("stc; int $0x15; setc %0"
-+ asm volatile("stc; int $0x15; setc %0"
- : "=m" (err), "+a" (ax), "+b" (bx), "+c" (cx), "+d" (dx));
-
- if (err)
-@@ -95,7 +95,7 @@ static int detect_memory_88(void)
- u8 err;
-
- ax = 0x8800;
-- asm("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax));
-+ asm volatile("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax));
-
- boot_params.screen_info.ext_mem_k = ax;
-
-diff -urNp linux-2.6.28.7/arch/x86/boot/video.c linux-2.6.28.7/arch/x86/boot/video.c
---- linux-2.6.28.7/arch/x86/boot/video.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/video.c 2009-02-21 09:37:48.000000000 -0500
-@@ -23,7 +23,7 @@ static void store_cursor_position(void)
-
- ax = 0x0300;
- bx = 0;
-- asm(INT10
-+ asm volatile(INT10
- : "=d" (curpos), "+a" (ax), "+b" (bx)
- : : "ecx", "esi", "edi");
-
-@@ -38,7 +38,7 @@ static void store_video_mode(void)
- /* N.B.: the saving of the video page here is a bit silly,
- since we pretty much assume page 0 everywhere. */
- ax = 0x0f00;
-- asm(INT10
-+ asm volatile(INT10
- : "+a" (ax), "=b" (page)
- : : "ecx", "edx", "esi", "edi");
-
-diff -urNp linux-2.6.28.7/arch/x86/boot/video-vesa.c linux-2.6.28.7/arch/x86/boot/video-vesa.c
---- linux-2.6.28.7/arch/x86/boot/video-vesa.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/video-vesa.c 2009-02-21 09:37:48.000000000 -0500
-@@ -41,7 +41,7 @@ static int vesa_probe(void)
-
- ax = 0x4f00;
- di = (size_t)&vginfo;
-- asm(INT10
-+ asm volatile(INT10
- : "+a" (ax), "+D" (di), "=m" (vginfo)
- : : "ebx", "ecx", "edx", "esi");
-
-@@ -68,7 +68,7 @@ static int vesa_probe(void)
- ax = 0x4f01;
- cx = mode;
- di = (size_t)&vminfo;
-- asm(INT10
-+ asm volatile(INT10
- : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo)
- : : "ebx", "edx", "esi");
-
-@@ -120,7 +120,7 @@ static int vesa_set_mode(struct mode_inf
- ax = 0x4f01;
- cx = vesa_mode;
- di = (size_t)&vminfo;
-- asm(INT10
-+ asm volatile(INT10
- : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo)
- : : "ebx", "edx", "esi");
-
-@@ -202,19 +202,20 @@ static void vesa_dac_set_8bits(void)
- /* Save the VESA protected mode info */
- static void vesa_store_pm_info(void)
- {
-- u16 ax, bx, di, es;
-+ u16 ax, bx, cx, di, es;
-
- ax = 0x4f0a;
-- bx = di = 0;
-- asm("pushw %%es; "INT10"; movw %%es,%0; popw %%es"
-- : "=d" (es), "+a" (ax), "+b" (bx), "+D" (di)
-- : : "ecx", "esi");
-+ bx = cx = di = 0;
-+ asm volatile("pushw %%es; "INT10"; movw %%es,%0; popw %%es"
-+ : "=d" (es), "+a" (ax), "+b" (bx), "+c" (cx), "+D" (di)
-+ : : "esi");
-
- if (ax != 0x004f)
- return;
-
- boot_params.screen_info.vesapm_seg = es;
- boot_params.screen_info.vesapm_off = di;
-+ boot_params.screen_info.vesapm_size = cx;
- }
-
- /*
-@@ -268,7 +269,7 @@ void vesa_store_edid(void)
- /* Note: The VBE DDC spec is different from the main VESA spec;
- we genuinely have to assume all registers are destroyed here. */
-
-- asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es"
-+ asm volatile("pushw %%es; movw %2,%%es; "INT10"; popw %%es"
- : "+a" (ax), "+b" (bx)
- : "c" (cx), "D" (di)
- : "esi");
-@@ -284,7 +285,7 @@ void vesa_store_edid(void)
- cx = 0; /* Controller 0 */
- dx = 0; /* EDID block number */
- di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */
-- asm(INT10
-+ asm volatile(INT10
- : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info)
- : "c" (cx), "D" (di)
- : "esi");
-diff -urNp linux-2.6.28.7/arch/x86/boot/video-vga.c linux-2.6.28.7/arch/x86/boot/video-vga.c
---- linux-2.6.28.7/arch/x86/boot/video-vga.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/video-vga.c 2009-02-21 09:37:48.000000000 -0500
-@@ -225,7 +225,7 @@ static int vga_probe(void)
- };
- u8 vga_flag;
-
-- asm(INT10
-+ asm volatile(INT10
- : "=b" (ega_bx)
- : "a" (0x1200), "b" (0x10) /* Check EGA/VGA */
- : "ecx", "edx", "esi", "edi");
-@@ -237,7 +237,7 @@ static int vga_probe(void)
- /* If we have MDA/CGA/HGC then BL will be unchanged at 0x10 */
- if ((u8)ega_bx != 0x10) {
- /* EGA/VGA */
-- asm(INT10
-+ asm volatile(INT10
- : "=a" (vga_flag)
- : "a" (0x1a00)
- : "ebx", "ecx", "edx", "esi", "edi");
-diff -urNp linux-2.6.28.7/arch/x86/boot/voyager.c linux-2.6.28.7/arch/x86/boot/voyager.c
---- linux-2.6.28.7/arch/x86/boot/voyager.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/boot/voyager.c 2009-02-21 09:37:48.000000000 -0500
-@@ -23,7 +23,7 @@ int query_voyager(void)
-
- data_ptr[0] = 0xff; /* Flag on config not found(?) */
-
-- asm("pushw %%es ; "
-+ asm volatile("pushw %%es ; "
- "int $0x15 ; "
- "setc %0 ; "
- "movw %%es, %1 ; "
-diff -urNp linux-2.6.28.7/arch/x86/ia32/ia32_signal.c linux-2.6.28.7/arch/x86/ia32/ia32_signal.c
---- linux-2.6.28.7/arch/x86/ia32/ia32_signal.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/ia32/ia32_signal.c 2009-02-21 09:37:48.000000000 -0500
-@@ -518,6 +518,7 @@ int ia32_setup_rt_frame(int sig, struct
- __NR_ia32_rt_sigreturn,
- 0x80cd,
- 0,
-+ 0
- };
-
- frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/alternative.h linux-2.6.28.7/arch/x86/include/asm/alternative.h
---- linux-2.6.28.7/arch/x86/include/asm/alternative.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/alternative.h 2009-02-21 09:37:48.000000000 -0500
-@@ -96,7 +96,7 @@ const unsigned char *const *find_nop_tab
- " .byte 662b-661b\n" /* sourcelen */ \
- " .byte 664f-663f\n" /* replacementlen */ \
- ".previous\n" \
-- ".section .altinstr_replacement,\"ax\"\n" \
-+ ".section .altinstr_replacement,\"a\"\n" \
- "663:\n\t" newinstr "\n664:\n" /* replacement */ \
- ".previous" :: "i" (feature) : "memory")
-
-@@ -120,7 +120,7 @@ const unsigned char *const *find_nop_tab
- " .byte 662b-661b\n" /* sourcelen */ \
- " .byte 664f-663f\n" /* replacementlen */ \
- ".previous\n" \
-- ".section .altinstr_replacement,\"ax\"\n" \
-+ ".section .altinstr_replacement,\"a\"\n" \
- "663:\n\t" newinstr "\n664:\n" /* replacement */ \
- ".previous" :: "i" (feature), ##input)
-
-@@ -135,7 +135,7 @@ const unsigned char *const *find_nop_tab
- " .byte 662b-661b\n" /* sourcelen */ \
- " .byte 664f-663f\n" /* replacementlen */ \
- ".previous\n" \
-- ".section .altinstr_replacement,\"ax\"\n" \
-+ ".section .altinstr_replacement,\"a\"\n" \
- "663:\n\t" newinstr "\n664:\n" /* replacement */ \
- ".previous" : output : [feat] "i" (feature), ##input)
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/atomic_32.h linux-2.6.28.7/arch/x86/include/asm/atomic_32.h
---- linux-2.6.28.7/arch/x86/include/asm/atomic_32.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/atomic_32.h 2009-02-21 09:37:48.000000000 -0500
-@@ -47,7 +47,29 @@ typedef struct {
- */
- static inline void atomic_add(int i, atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "addl %1,%0"
-+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "subl %1,%0\n"
-+ "into\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ : "+m" (v->counter)
-+ : "ir" (i));
-+}
-+
-+/**
-+ * atomic_add_unchecked - add integer to atomic variable
-+ * @i: integer value to add
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically adds @i to @v.
-+ */
-+static inline void atomic_add_unchecked(int i, atomic_t *v)
-+{
-+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
- : "+m" (v->counter)
- : "ir" (i));
- }
-@@ -61,7 +83,15 @@ static inline void atomic_add(int i, ato
- */
- static inline void atomic_sub(int i, atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "subl %1,%0"
-+ asm volatile(LOCK_PREFIX "subl %1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "addl %1,%0\n"
-+ "into\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
- : "+m" (v->counter)
- : "ir" (i));
- }
-@@ -79,7 +109,16 @@ static inline int atomic_sub_and_test(in
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
-+ asm volatile(LOCK_PREFIX "subl %2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "addl %2,%0\n"
-+ "into\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ "sete %1\n"
- : "+m" (v->counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
-@@ -93,7 +132,18 @@ static inline int atomic_sub_and_test(in
- */
- static inline void atomic_inc(atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "incl %0"
-+ asm volatile(LOCK_PREFIX "incl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "into\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "decl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (v->counter));
- }
-
-@@ -105,7 +155,18 @@ static inline void atomic_inc(atomic_t *
- */
- static inline void atomic_dec(atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "decl %0"
-+ asm volatile(LOCK_PREFIX "decl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "into\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "incl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (v->counter));
- }
-
-@@ -121,7 +182,19 @@ static inline int atomic_dec_and_test(at
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "decl %0; sete %1"
-+ asm volatile(LOCK_PREFIX "decl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "into\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "incl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "+m" (v->counter), "=qm" (c)
- : : "memory");
- return c != 0;
-@@ -139,7 +212,19 @@ static inline int atomic_inc_and_test(at
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "incl %0; sete %1"
-+ asm volatile(LOCK_PREFIX "incl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "into\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "decl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "+m" (v->counter), "=qm" (c)
- : : "memory");
- return c != 0;
-@@ -158,7 +243,16 @@ static inline int atomic_add_negative(in
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
-+ asm volatile(LOCK_PREFIX "addl %2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "subl %2,%0\n"
-+ "into\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ "sets %1\n"
- : "+m" (v->counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
-@@ -181,7 +275,15 @@ static inline int atomic_add_return(int
- #endif
- /* Modern 486+ processor */
- __i = i;
-- asm volatile(LOCK_PREFIX "xaddl %0, %1"
-+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "movl %0, %1\n"
-+ "into\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
- : "+r" (i), "+m" (v->counter)
- : : "memory");
- return i + __i;
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/atomic_64.h linux-2.6.28.7/arch/x86/include/asm/atomic_64.h
---- linux-2.6.28.7/arch/x86/include/asm/atomic_64.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/atomic_64.h 2009-02-21 09:37:48.000000000 -0500
-@@ -48,7 +48,29 @@ typedef struct {
- */
- static inline void atomic_add(int i, atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "addl %1,%0"
-+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "subl %1,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ : "=m" (v->counter)
-+ : "ir" (i), "m" (v->counter));
-+}
-+
-+/**
-+ * atomic_add_unchecked - add integer to atomic variable
-+ * @i: integer value to add
-+ * @v: pointer of type atomic_t
-+ *
-+ * Atomically adds @i to @v.
-+ */
-+static inline void atomic_add_unchecked(int i, atomic_t *v)
-+{
-+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
- : "=m" (v->counter)
- : "ir" (i), "m" (v->counter));
- }
-@@ -62,7 +84,15 @@ static inline void atomic_add(int i, ato
- */
- static inline void atomic_sub(int i, atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "subl %1,%0"
-+ asm volatile(LOCK_PREFIX "subl %1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "addl %1,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
- : "=m" (v->counter)
- : "ir" (i), "m" (v->counter));
- }
-@@ -80,7 +110,16 @@ static inline int atomic_sub_and_test(in
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
-+ asm volatile(LOCK_PREFIX "subl %2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "addl %2,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ "sete %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "ir" (i), "m" (v->counter) : "memory");
- return c;
-@@ -94,7 +133,19 @@ static inline int atomic_sub_and_test(in
- */
- static inline void atomic_inc(atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "incl %0"
-+ asm volatile(LOCK_PREFIX "incl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "decl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "=m" (v->counter)
- : "m" (v->counter));
- }
-@@ -107,7 +158,19 @@ static inline void atomic_inc(atomic_t *
- */
- static inline void atomic_dec(atomic_t *v)
- {
-- asm volatile(LOCK_PREFIX "decl %0"
-+ asm volatile(LOCK_PREFIX "decl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "incl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "=m" (v->counter)
- : "m" (v->counter));
- }
-@@ -124,7 +187,20 @@ static inline int atomic_dec_and_test(at
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "decl %0; sete %1"
-+ asm volatile(LOCK_PREFIX "decl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "incl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "m" (v->counter) : "memory");
- return c != 0;
-@@ -142,7 +218,20 @@ static inline int atomic_inc_and_test(at
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "incl %0; sete %1"
-+ asm volatile(LOCK_PREFIX "incl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "decl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "m" (v->counter) : "memory");
- return c != 0;
-@@ -161,7 +250,16 @@ static inline int atomic_add_negative(in
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
-+ asm volatile(LOCK_PREFIX "addl %2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "subl %2,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ "sets %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "ir" (i), "m" (v->counter) : "memory");
- return c;
-@@ -177,7 +275,15 @@ static inline int atomic_add_negative(in
- static inline int atomic_add_return(int i, atomic_t *v)
- {
- int __i = i;
-- asm volatile(LOCK_PREFIX "xaddl %0, %1"
-+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "movl %0, %1\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
- : "+r" (i), "+m" (v->counter)
- : : "memory");
- return i + __i;
-@@ -226,7 +332,15 @@ typedef struct {
- */
- static inline void atomic64_add(long i, atomic64_t *v)
- {
-- asm volatile(LOCK_PREFIX "addq %1,%0"
-+ asm volatile(LOCK_PREFIX "addq %1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "subq %1,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
- : "=m" (v->counter)
- : "er" (i), "m" (v->counter));
- }
-@@ -240,7 +354,15 @@ static inline void atomic64_add(long i,
- */
- static inline void atomic64_sub(long i, atomic64_t *v)
- {
-- asm volatile(LOCK_PREFIX "subq %1,%0"
-+ asm volatile(LOCK_PREFIX "subq %1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "addq %1,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
- : "=m" (v->counter)
- : "er" (i), "m" (v->counter));
- }
-@@ -258,7 +380,16 @@ static inline int atomic64_sub_and_test(
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1"
-+ asm volatile(LOCK_PREFIX "subq %2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "addq %2,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ "sete %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "er" (i), "m" (v->counter) : "memory");
- return c;
-@@ -272,7 +403,19 @@ static inline int atomic64_sub_and_test(
- */
- static inline void atomic64_inc(atomic64_t *v)
- {
-- asm volatile(LOCK_PREFIX "incq %0"
-+ asm volatile(LOCK_PREFIX "incq %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "decq %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "=m" (v->counter)
- : "m" (v->counter));
- }
-@@ -285,7 +428,19 @@ static inline void atomic64_inc(atomic64
- */
- static inline void atomic64_dec(atomic64_t *v)
- {
-- asm volatile(LOCK_PREFIX "decq %0"
-+ asm volatile(LOCK_PREFIX "decq %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "incq %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "=m" (v->counter)
- : "m" (v->counter));
- }
-@@ -302,7 +457,20 @@ static inline int atomic64_dec_and_test(
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "decq %0; sete %1"
-+ asm volatile(LOCK_PREFIX "decq %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "incq %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "m" (v->counter) : "memory");
- return c != 0;
-@@ -320,7 +488,20 @@ static inline int atomic64_inc_and_test(
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "incq %0; sete %1"
-+ asm volatile(LOCK_PREFIX "incq %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1: \n"
-+ LOCK_PREFIX "decq %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "m" (v->counter) : "memory");
- return c != 0;
-@@ -339,7 +520,16 @@ static inline int atomic64_add_negative(
- {
- unsigned char c;
-
-- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1"
-+ asm volatile(LOCK_PREFIX "addq %2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ LOCK_PREFIX "subq %2,%0\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
-+ "sets %1\n"
- : "=m" (v->counter), "=qm" (c)
- : "er" (i), "m" (v->counter) : "memory");
- return c;
-@@ -355,7 +545,15 @@ static inline int atomic64_add_negative(
- static inline long atomic64_add_return(long i, atomic64_t *v)
- {
- long __i = i;
-- asm volatile(LOCK_PREFIX "xaddq %0, %1;"
-+ asm volatile(LOCK_PREFIX "xaddq %0, %1\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ "jno 0f\n"
-+ "movq %0, %1\n"
-+ "int $4\n0:\n"
-+ _ASM_EXTABLE(0b, 0b)
-+#endif
-+
- : "+r" (i), "+m" (v->counter)
- : : "memory");
- return i + __i;
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/boot.h linux-2.6.28.7/arch/x86/include/asm/boot.h
---- linux-2.6.28.7/arch/x86/include/asm/boot.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/boot.h 2009-02-21 09:37:48.000000000 -0500
-@@ -11,10 +11,15 @@
- #define ASK_VGA 0xfffd /* ask for it at bootup */
-
- /* Physical address where kernel should be loaded. */
--#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
-+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
- + (CONFIG_PHYSICAL_ALIGN - 1)) \
- & ~(CONFIG_PHYSICAL_ALIGN - 1))
-
-+#ifndef __ASSEMBLY__
-+extern unsigned char __LOAD_PHYSICAL_ADDR[];
-+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
-+#endif
-+
- #ifdef CONFIG_X86_64
- #define BOOT_HEAP_SIZE 0x7000
- #define BOOT_STACK_SIZE 0x4000
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/cache.h linux-2.6.28.7/arch/x86/include/asm/cache.h
---- linux-2.6.28.7/arch/x86/include/asm/cache.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/cache.h 2009-02-21 09:37:48.000000000 -0500
-@@ -6,6 +6,7 @@
- #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
-
- #define __read_mostly __attribute__((__section__(".data.read_mostly")))
-+#define __read_only __attribute__((__section__(".data.read_only")))
-
- #ifdef CONFIG_X86_VSMP
- /* vSMP Internode cacheline shift */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/checksum_32.h linux-2.6.28.7/arch/x86/include/asm/checksum_32.h
---- linux-2.6.28.7/arch/x86/include/asm/checksum_32.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/checksum_32.h 2009-02-21 09:37:48.000000000 -0500
-@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_gene
- int len, __wsum sum,
- int *src_err_ptr, int *dst_err_ptr);
-
-+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
-+ int len, __wsum sum,
-+ int *src_err_ptr, int *dst_err_ptr);
-+
-+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
-+ int len, __wsum sum,
-+ int *src_err_ptr, int *dst_err_ptr);
-+
- /*
- * Note: when you get a NULL pointer exception here this means someone
- * passed in an incorrect kernel address to one of these functions.
-@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_f
- int *err_ptr)
- {
- might_sleep();
-- return csum_partial_copy_generic((__force void *)src, dst,
-+ return csum_partial_copy_generic_from_user((__force void *)src, dst,
- len, sum, err_ptr, NULL);
- }
-
-@@ -177,7 +185,7 @@ static inline __wsum csum_and_copy_to_us
- {
- might_sleep();
- if (access_ok(VERIFY_WRITE, dst, len))
-- return csum_partial_copy_generic(src, (__force void *)dst,
-+ return csum_partial_copy_generic_to_user(src, (__force void *)dst,
- len, sum, NULL, err_ptr);
-
- if (len)
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/cpufeature.h linux-2.6.28.7/arch/x86/include/asm/cpufeature.h
---- linux-2.6.28.7/arch/x86/include/asm/cpufeature.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/cpufeature.h 2009-02-21 09:37:48.000000000 -0500
-@@ -80,7 +80,6 @@
- #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */
- #define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* "" FXSAVE leaks FOP/FIP/FOP */
- #define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */
--#define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */
- #define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */
- #define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */
- #define X86_FEATURE_SYSCALL32 (3*32+14) /* "" syscall in ia32 userspace */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/desc.h linux-2.6.28.7/arch/x86/include/asm/desc.h
---- linux-2.6.28.7/arch/x86/include/asm/desc.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/desc.h 2009-02-21 09:37:48.000000000 -0500
-@@ -16,6 +16,7 @@ static inline void fill_ldt(struct desc_
- desc->base1 = (info->base_addr & 0x00ff0000) >> 16;
- desc->type = (info->read_exec_only ^ 1) << 1;
- desc->type |= info->contents << 2;
-+ desc->type |= info->seg_not_present ^ 1;
- desc->s = 1;
- desc->dpl = 0x3;
- desc->p = info->seg_not_present ^ 1;
-@@ -32,16 +33,12 @@ static inline void fill_ldt(struct desc_
- }
-
- extern struct desc_ptr idt_descr;
--extern gate_desc idt_table[];
--
--struct gdt_page {
-- struct desc_struct gdt[GDT_ENTRIES];
--} __attribute__((aligned(PAGE_SIZE)));
--DECLARE_PER_CPU(struct gdt_page, gdt_page);
-+extern gate_desc idt_table[256];
-
-+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
- static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
- {
-- return per_cpu(gdt_page, cpu).gdt;
-+ return cpu_gdt_table[cpu];
- }
-
- #ifdef CONFIG_X86_64
-@@ -115,19 +112,48 @@ static inline void paravirt_free_ldt(str
- static inline void native_write_idt_entry(gate_desc *idt, int entry,
- const gate_desc *gate)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- memcpy(&idt[entry], gate, sizeof(*gate));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry,
- const void *desc)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- memcpy(&ldt[entry], desc, 8);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry,
- const void *desc, int type)
- {
- unsigned int size;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- switch (type) {
- case DESC_TSS:
- size = sizeof(tss_desc);
-@@ -139,7 +165,17 @@ static inline void native_write_gdt_entr
- size = sizeof(struct desc_struct);
- break;
- }
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- memcpy(&gdt[entry], desc, size);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
-@@ -211,7 +247,19 @@ static inline void native_set_ldt(const
-
- static inline void native_load_tr_desc(void)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- static inline void native_load_gdt(const struct desc_ptr *dtr)
-@@ -246,8 +294,19 @@ static inline void native_load_tls(struc
- unsigned int i;
- struct desc_struct *gdt = get_cpu_gdt_table(cpu);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
- gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- #define _LDT_empty(info) \
-@@ -381,6 +440,18 @@ static inline void set_system_intr_gate_
- _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
- }
-
-+#ifdef CONFIG_X86_32
-+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
-+{
-+ struct desc_struct d;
-+
-+ if (likely(limit))
-+ limit = (limit - 1UL) >> PAGE_SHIFT;
-+ pack_descriptor(&d, base, limit, 0xFB, 0xC);
-+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
-+}
-+#endif
-+
- #else
- /*
- * GET_DESC_BASE reads the descriptor base of the specified segment.
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/e820.h linux-2.6.28.7/arch/x86/include/asm/e820.h
---- linux-2.6.28.7/arch/x86/include/asm/e820.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/e820.h 2009-02-21 09:37:48.000000000 -0500
-@@ -134,7 +134,7 @@ extern char *memory_setup(void);
- #define ISA_END_ADDRESS 0x100000
- #define is_ISA_range(s, e) ((s) >= ISA_START_ADDRESS && (e) < ISA_END_ADDRESS)
-
--#define BIOS_BEGIN 0x000a0000
-+#define BIOS_BEGIN 0x000c0000
- #define BIOS_END 0x00100000
-
- #ifdef __KERNEL__
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/elf.h linux-2.6.28.7/arch/x86/include/asm/elf.h
---- linux-2.6.28.7/arch/x86/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
-@@ -252,7 +252,25 @@ extern int force_personality32;
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
-+#else
- #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
-+#endif
-+
-+#ifdef CONFIG_PAX_ASLR
-+#ifdef CONFIG_X86_32
-+#define PAX_ELF_ET_DYN_BASE 0x10000000UL
-+
-+#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
-+#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
-+#else
-+#define PAX_ELF_ET_DYN_BASE 0x400000UL
-+
-+#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32)
-+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32)
-+#endif
-+#endif
-
- /* This yields a mask that user programs can use to figure out what
- instruction set this CPU supports. This could be done in user space,
-@@ -304,8 +322,7 @@ do { \
- #define ARCH_DLINFO \
- do { \
- if (vdso_enabled) \
-- NEW_AUX_ENT(AT_SYSINFO_EHDR, \
-- (unsigned long)current->mm->context.vdso); \
-+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);\
- } while (0)
-
- #define AT_SYSINFO 32
-@@ -316,7 +333,7 @@ do { \
-
- #endif /* !CONFIG_X86_32 */
-
--#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso)
-+#define VDSO_CURRENT_BASE (current->mm->context.vdso)
-
- #define VDSO_ENTRY \
- ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
-@@ -330,7 +347,4 @@ extern int arch_setup_additional_pages(s
- extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
- #define compat_arch_setup_additional_pages syscall32_setup_pages
-
--extern unsigned long arch_randomize_brk(struct mm_struct *mm);
--#define arch_randomize_brk arch_randomize_brk
--
- #endif /* _ASM_X86_ELF_H */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/futex.h linux-2.6.28.7/arch/x86/include/asm/futex.h
---- linux-2.6.28.7/arch/x86/include/asm/futex.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/futex.h 2009-02-21 09:37:48.000000000 -0500
-@@ -11,6 +11,40 @@
- #include <asm/processor.h>
- #include <asm/system.h>
-
-+#ifdef CONFIG_X86_32
-+#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
-+ asm volatile( \
-+ "movw\t%w6, %%ds\n" \
-+ "1:\t" insn "\n" \
-+ "2:\tpushl\t%%ss\n" \
-+ "\tpopl\t%%ds\n" \
-+ "\t.section .fixup,\"ax\"\n" \
-+ "3:\tmov\t%3, %1\n" \
-+ "\tjmp\t2b\n" \
-+ "\t.previous\n" \
-+ _ASM_EXTABLE(1b, 3b) \
-+ : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
-+ : "i" (-EFAULT), "0" (oparg), "1" (0), "r" (__USER_DS))
-+
-+#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
-+ asm volatile("movw\t%w7, %%es\n" \
-+ "1:\tmovl\t%%es:%2, %0\n" \
-+ "\tmovl\t%0, %3\n" \
-+ "\t" insn "\n" \
-+ "2:\t" LOCK_PREFIX "cmpxchgl %3, %%es:%2\n"\
-+ "\tjnz\t1b\n" \
-+ "3:\tpushl\t%%ss\n" \
-+ "\tpopl\t%%es\n" \
-+ "\t.section .fixup,\"ax\"\n" \
-+ "4:\tmov\t%5, %1\n" \
-+ "\tjmp\t3b\n" \
-+ "\t.previous\n" \
-+ _ASM_EXTABLE(1b, 4b) \
-+ _ASM_EXTABLE(2b, 4b) \
-+ : "=&a" (oldval), "=&r" (ret), \
-+ "+m" (*uaddr), "=&r" (tem) \
-+ : "r" (oparg), "i" (-EFAULT), "1" (0), "r" (__USER_DS))
-+#else
- #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
- asm volatile("1:\t" insn "\n" \
- "2:\t.section .fixup,\"ax\"\n" \
-@@ -36,8 +70,9 @@
- : "=&a" (oldval), "=&r" (ret), \
- "+m" (*uaddr), "=&r" (tem) \
- : "r" (oparg), "i" (-EFAULT), "1" (0))
-+#endif
-
--static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
-+static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
- {
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
-@@ -61,11 +96,20 @@ static inline int futex_atomic_op_inuser
-
- switch (op) {
- case FUTEX_OP_SET:
-+#ifdef CONFIG_X86_32
-+ __futex_atomic_op1("xchgl %0, %%ds:%2", ret, oldval, uaddr, oparg);
-+#else
- __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
-+#endif
- break;
- case FUTEX_OP_ADD:
-+#ifdef CONFIG_X86_32
-+ __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %%ds:%2", ret, oldval,
-+ uaddr, oparg);
-+#else
- __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
- uaddr, oparg);
-+#endif
- break;
- case FUTEX_OP_OR:
- __futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, oparg);
-@@ -109,7 +153,7 @@ static inline int futex_atomic_op_inuser
- return ret;
- }
-
--static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval,
-+static inline int futex_atomic_cmpxchg_inatomic(u32 __user *uaddr, int oldval,
- int newval)
- {
-
-@@ -122,14 +166,27 @@ static inline int futex_atomic_cmpxchg_i
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
-- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n"
-+ asm volatile(
-+#ifdef CONFIG_X86_32
-+ "\tmovw %w5, %%ds\n"
-+ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n"
-+ "2:\tpushl %%ss\n"
-+ "\tpopl %%ds\n"
-+ "\t.section .fixup, \"ax\"\n"
-+#else
-+ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n"
- "2:\t.section .fixup, \"ax\"\n"
-+#endif
- "3:\tmov %2, %0\n"
- "\tjmp 2b\n"
- "\t.previous\n"
- _ASM_EXTABLE(1b, 3b)
- : "=a" (oldval), "+m" (*uaddr)
-+#ifdef CONFIG_X86_32
-+ : "i" (-EFAULT), "r" (newval), "0" (oldval), "r" (__USER_DS)
-+#else
- : "i" (-EFAULT), "r" (newval), "0" (oldval)
-+#endif
- : "memory"
- );
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/i387.h linux-2.6.28.7/arch/x86/include/asm/i387.h
---- linux-2.6.28.7/arch/x86/include/asm/i387.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/i387.h 2009-02-21 09:37:48.000000000 -0500
-@@ -197,13 +197,8 @@ static inline void restore_fpu(struct ta
- }
-
- /* We need a safe address that is cheap to find and that is already
-- in L1 during context switch. The best choices are unfortunately
-- different for UP and SMP */
--#ifdef CONFIG_SMP
--#define safe_address (__per_cpu_offset[0])
--#else
--#define safe_address (kstat_cpu(0).cpustat.user)
--#endif
-+ in L1 during context switch. */
-+#define safe_address (init_tss[smp_processor_id()].x86_tss.sp0)
-
- /*
- * These must be called with preempt disabled
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/io_64.h linux-2.6.28.7/arch/x86/include/asm/io_64.h
---- linux-2.6.28.7/arch/x86/include/asm/io_64.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/io_64.h 2009-02-21 09:37:48.000000000 -0500
-@@ -158,6 +158,17 @@ static inline void *phys_to_virt(unsigne
- }
- #endif
-
-+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
-+static inline int valid_phys_addr_range (unsigned long addr, size_t count)
-+{
-+ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
-+}
-+
-+static inline int valid_mmap_phys_addr_range (unsigned long pfn, size_t count)
-+{
-+ return (pfn + (count >> PAGE_SHIFT)) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
-+}
-+
- /*
- * Change "struct page" to physical address.
- */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/irqflags.h linux-2.6.28.7/arch/x86/include/asm/irqflags.h
---- linux-2.6.28.7/arch/x86/include/asm/irqflags.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/irqflags.h 2009-02-21 09:37:48.000000000 -0500
-@@ -141,6 +141,8 @@ static inline unsigned long __raw_local_
- #define INTERRUPT_RETURN iret
- #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
- #define GET_CR0_INTO_EAX movl %cr0, %eax
-+#define GET_CR0_INTO_EDX movl %cr0, %edx
-+#define SET_CR0_FROM_EDX movl %edx, %cr0
- #endif
-
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/kmap_types.h linux-2.6.28.7/arch/x86/include/asm/kmap_types.h
---- linux-2.6.28.7/arch/x86/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
-@@ -21,7 +21,8 @@ D(9) KM_IRQ0,
- D(10) KM_IRQ1,
- D(11) KM_SOFTIRQ0,
- D(12) KM_SOFTIRQ1,
--D(13) KM_TYPE_NR
-+D(13) KM_CLEARPAGE,
-+D(14) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/kvm_host.h linux-2.6.28.7/arch/x86/include/asm/kvm_host.h
---- linux-2.6.28.7/arch/x86/include/asm/kvm_host.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/kvm_host.h 2009-02-21 09:37:48.000000000 -0500
-@@ -479,7 +479,7 @@ struct kvm_x86_ops {
- int (*get_tdp_level)(void);
- };
-
--extern struct kvm_x86_ops *kvm_x86_ops;
-+extern const struct kvm_x86_ops *kvm_x86_ops;
-
- int kvm_mmu_module_init(void);
- void kvm_mmu_module_exit(void);
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/linkage.h linux-2.6.28.7/arch/x86/include/asm/linkage.h
---- linux-2.6.28.7/arch/x86/include/asm/linkage.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/linkage.h 2009-02-21 09:37:48.000000000 -0500
-@@ -7,6 +7,11 @@
- #ifdef CONFIG_X86_64
- #define __ALIGN .p2align 4,,15
- #define __ALIGN_STR ".p2align 4,,15"
-+#else
-+#ifdef CONFIG_X86_ALIGNMENT_16
-+#define __ALIGN .align 16,0x90
-+#define __ALIGN_STR ".align 16,0x90"
-+#endif
- #endif
-
- #ifdef CONFIG_X86_32
-@@ -52,10 +57,5 @@
-
- #endif
-
--#ifdef CONFIG_X86_ALIGNMENT_16
--#define __ALIGN .align 16,0x90
--#define __ALIGN_STR ".align 16,0x90"
--#endif
--
- #endif /* _ASM_X86_LINKAGE_H */
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/local.h linux-2.6.28.7/arch/x86/include/asm/local.h
---- linux-2.6.28.7/arch/x86/include/asm/local.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/local.h 2009-02-21 09:37:48.000000000 -0500
-@@ -18,26 +18,90 @@ typedef struct {
-
- static inline void local_inc(local_t *l)
- {
-- asm volatile(_ASM_INC "%0"
-+ asm volatile(_ASM_INC "%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_DEC "%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (l->a.counter));
- }
-
- static inline void local_dec(local_t *l)
- {
-- asm volatile(_ASM_DEC "%0"
-+ asm volatile(_ASM_DEC "%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_INC "%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (l->a.counter));
- }
-
- static inline void local_add(long i, local_t *l)
- {
-- asm volatile(_ASM_ADD "%1,%0"
-+ asm volatile(_ASM_ADD "%1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_SUB "%1,%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (l->a.counter)
- : "ir" (i));
- }
-
- static inline void local_sub(long i, local_t *l)
- {
-- asm volatile(_ASM_SUB "%1,%0"
-+ asm volatile(_ASM_SUB "%1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_ADD "%1,%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (l->a.counter)
- : "ir" (i));
- }
-@@ -55,7 +119,24 @@ static inline int local_sub_and_test(lon
- {
- unsigned char c;
-
-- asm volatile(_ASM_SUB "%2,%0; sete %1"
-+ asm volatile(_ASM_SUB "%2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_ADD "%2,%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "+m" (l->a.counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
-@@ -73,7 +154,24 @@ static inline int local_dec_and_test(loc
- {
- unsigned char c;
-
-- asm volatile(_ASM_DEC "%0; sete %1"
-+ asm volatile(_ASM_DEC "%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_INC "%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "+m" (l->a.counter), "=qm" (c)
- : : "memory");
- return c != 0;
-@@ -91,7 +189,24 @@ static inline int local_inc_and_test(loc
- {
- unsigned char c;
-
-- asm volatile(_ASM_INC "%0; sete %1"
-+ asm volatile(_ASM_INC "%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_DEC "%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sete %1\n"
- : "+m" (l->a.counter), "=qm" (c)
- : : "memory");
- return c != 0;
-@@ -110,7 +225,24 @@ static inline int local_add_negative(lon
- {
- unsigned char c;
-
-- asm volatile(_ASM_ADD "%2,%0; sets %1"
-+ asm volatile(_ASM_ADD "%2,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_SUB "%2,%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "sets %1\n"
- : "+m" (l->a.counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
-@@ -133,7 +265,23 @@ static inline long local_add_return(long
- #endif
- /* Modern 486+ processor */
- __i = i;
-- asm volatile(_ASM_XADD "%0, %1;"
-+ asm volatile(_ASM_XADD "%0, %1\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ _ASM_MOV "%0,%1\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+r" (i), "+m" (l->a.counter)
- : : "memory");
- return i + __i;
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/mach-default/apm.h linux-2.6.28.7/arch/x86/include/asm/mach-default/apm.h
---- linux-2.6.28.7/arch/x86/include/asm/mach-default/apm.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/mach-default/apm.h 2009-02-21 09:37:48.000000000 -0500
-@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32
- __asm__ __volatile__(APM_DO_ZERO_SEGS
- "pushl %%edi\n\t"
- "pushl %%ebp\n\t"
-- "lcall *%%cs:apm_bios_entry\n\t"
-+ "lcall *%%ss:apm_bios_entry\n\t"
- "setc %%al\n\t"
- "popl %%ebp\n\t"
- "popl %%edi\n\t"
-@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_as
- __asm__ __volatile__(APM_DO_ZERO_SEGS
- "pushl %%edi\n\t"
- "pushl %%ebp\n\t"
-- "lcall *%%cs:apm_bios_entry\n\t"
-+ "lcall *%%ss:apm_bios_entry\n\t"
- "setc %%bl\n\t"
- "popl %%ebp\n\t"
- "popl %%edi\n\t"
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/mman.h linux-2.6.28.7/arch/x86/include/asm/mman.h
---- linux-2.6.28.7/arch/x86/include/asm/mman.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/mman.h 2009-02-21 09:37:48.000000000 -0500
-@@ -17,4 +17,14 @@
- #define MCL_CURRENT 1 /* lock all current mappings */
- #define MCL_FUTURE 2 /* lock all future mappings */
-
-+#ifdef __KERNEL__
-+#ifndef __ASSEMBLY__
-+#ifdef CONFIG_X86_32
-+#define arch_mmap_check i386_mmap_check
-+int i386_mmap_check(unsigned long addr, unsigned long len,
-+ unsigned long flags);
-+#endif
-+#endif
-+#endif
-+
- #endif /* _ASM_X86_MMAN_H */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/mmu_context_32.h linux-2.6.28.7/arch/x86/include/asm/mmu_context_32.h
---- linux-2.6.28.7/arch/x86/include/asm/mmu_context_32.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/mmu_context_32.h 2009-02-21 09:37:48.000000000 -0500
-@@ -33,6 +33,22 @@ static inline void switch_mm(struct mm_s
- */
- if (unlikely(prev->context.ldt != next->context.ldt))
- load_LDT_nolock(&next->context);
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
-+ if (!nx_enabled) {
-+ smp_mb__before_clear_bit();
-+ cpu_clear(cpu, prev->context.cpu_user_cs_mask);
-+ smp_mb__after_clear_bit();
-+ cpu_set(cpu, next->context.cpu_user_cs_mask);
-+ }
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
-+ prev->context.user_cs_limit != next->context.user_cs_limit))
-+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
-+#endif
-+
- }
- #ifdef CONFIG_SMP
- else {
-@@ -45,6 +61,19 @@ static inline void switch_mm(struct mm_s
- */
- load_cr3(next->pgd);
- load_LDT_nolock(&next->context);
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!nx_enabled)
-+ cpu_set(cpu, next->context.cpu_user_cs_mask);
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && nx_enabled))
-+#endif
-+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
-+#endif
-+
- }
- }
- #endif
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/mmu.h linux-2.6.28.7/arch/x86/include/asm/mmu.h
---- linux-2.6.28.7/arch/x86/include/asm/mmu.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/mmu.h 2009-02-21 09:37:48.000000000 -0500
-@@ -9,10 +9,23 @@
- * we put the segment information here.
- */
- typedef struct {
-- void *ldt;
-+ struct desc_struct *ldt;
- int size;
- struct mutex lock;
-- void *vdso;
-+ unsigned long vdso;
-+
-+#ifdef CONFIG_X86_32
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ unsigned long user_cs_base;
-+ unsigned long user_cs_limit;
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
-+ cpumask_t cpu_user_cs_mask;
-+#endif
-+
-+#endif
-+#endif
-+
- } mm_context_t;
-
- #ifdef CONFIG_SMP
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/module.h linux-2.6.28.7/arch/x86/include/asm/module.h
---- linux-2.6.28.7/arch/x86/include/asm/module.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/module.h 2009-02-21 09:37:48.000000000 -0500
-@@ -74,7 +74,12 @@ struct mod_arch_specific {};
- # else
- # define MODULE_STACKSIZE ""
- # endif
--# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE
-+# ifdef CONFIG_GRKERNSEC
-+# define MODULE_GRSEC "GRSECURITY "
-+# else
-+# define MODULE_GRSEC ""
-+# endif
-+# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE MODULE_GRSEC
- #endif
-
- #endif /* _ASM_X86_MODULE_H */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/page_32.h linux-2.6.28.7/arch/x86/include/asm/page_32.h
---- linux-2.6.28.7/arch/x86/include/asm/page_32.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/page_32.h 2009-02-21 09:37:48.000000000 -0500
-@@ -13,6 +13,23 @@
- */
- #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+#ifndef __ASSEMBLY__
-+extern unsigned char MODULES_VADDR[];
-+extern unsigned char MODULES_END[];
-+extern unsigned char KERNEL_TEXT_OFFSET[];
-+#define ktla_ktva(addr) (addr + (unsigned long)KERNEL_TEXT_OFFSET)
-+#define ktva_ktla(addr) (addr - (unsigned long)KERNEL_TEXT_OFFSET)
-+#endif
-+#else
-+#define ktla_ktva(addr) (addr)
-+#define ktva_ktla(addr) (addr)
-+#endif
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+#define CONFIG_ARCH_TRACK_EXEC_LIMIT 1
-+#endif
-+
- #ifdef CONFIG_4KSTACKS
- #define THREAD_ORDER 0
- #else
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/page_64.h linux-2.6.28.7/arch/x86/include/asm/page_64.h
---- linux-2.6.28.7/arch/x86/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500
-@@ -49,6 +49,9 @@
- #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
- #define __START_KERNEL_map _AC(0xffffffff80000000, UL)
-
-+#define ktla_ktva(addr) (addr)
-+#define ktva_ktla(addr) (addr)
-+
- /* See Documentation/x86_64/mm.txt for a description of the memory map. */
- #define __PHYSICAL_MASK_SHIFT 46
- #define __VIRTUAL_MASK_SHIFT 48
-@@ -101,5 +104,6 @@ extern void init_extra_mapping_wb(unsign
- #define pfn_valid(pfn) ((pfn) < max_pfn)
- #endif
-
-+#define nx_enabled (1)
-
- #endif /* _ASM_X86_PAGE_64_H */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/paravirt.h linux-2.6.28.7/arch/x86/include/asm/paravirt.h
---- linux-2.6.28.7/arch/x86/include/asm/paravirt.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/paravirt.h 2009-02-21 09:37:48.000000000 -0500
-@@ -1570,7 +1570,7 @@ static inline unsigned long __raw_local_
- #define PV_RESTORE_REGS popl %edx; popl %ecx; popl %edi; popl %eax
- #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
- #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
--#define PARA_INDIRECT(addr) *%cs:addr
-+#define PARA_INDIRECT(addr) *%ss:addr
- #endif
-
- #define INTERRUPT_RETURN \
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/pda.h linux-2.6.28.7/arch/x86/include/asm/pda.h
---- linux-2.6.28.7/arch/x86/include/asm/pda.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/pda.h 2009-02-21 09:37:48.000000000 -0500
-@@ -16,11 +16,9 @@ struct x8664_pda {
- unsigned long oldrsp; /* 24 user rsp for system call */
- int irqcount; /* 32 Irq nesting counter. Starts -1 */
- unsigned int cpunumber; /* 36 Logical CPU number */
--#ifdef CONFIG_CC_STACKPROTECTOR
- unsigned long stack_canary; /* 40 stack canary value */
- /* gcc-ABI: this canary MUST be at
- offset 40!!! */
--#endif
- char *irqstackptr;
- short nodenumber; /* number of current node (32k max) */
- short in_bootmem; /* pda lives in bootmem */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/percpu.h linux-2.6.28.7/arch/x86/include/asm/percpu.h
---- linux-2.6.28.7/arch/x86/include/asm/percpu.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/percpu.h 2009-02-21 09:37:48.000000000 -0500
-@@ -93,6 +93,12 @@ DECLARE_PER_CPU(struct x8664_pda, pda);
-
- #define __my_cpu_offset x86_read_percpu(this_cpu_off)
-
-+#include <asm-generic/sections.h>
-+#include <linux/threads.h>
-+#define __per_cpu_offset __per_cpu_offset
-+extern unsigned long __per_cpu_offset[NR_CPUS];
-+#define per_cpu_offset(x) (__per_cpu_offset[x] + (unsigned long)__per_cpu_start)
-+
- /* fs segment starts at (positive) offset == __per_cpu_offset[cpu] */
- #define __percpu_seg "%%fs:"
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/pgalloc.h linux-2.6.28.7/arch/x86/include/asm/pgalloc.h
---- linux-2.6.28.7/arch/x86/include/asm/pgalloc.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/pgalloc.h 2009-02-21 09:37:48.000000000 -0500
-@@ -52,7 +52,7 @@ static inline void pmd_populate_kernel(s
- pmd_t *pmd, pte_t *pte)
- {
- paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
-- set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
-+ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
- }
-
- static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/pgtable-2level.h linux-2.6.28.7/arch/x86/include/asm/pgtable-2level.h
---- linux-2.6.28.7/arch/x86/include/asm/pgtable-2level.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/pgtable-2level.h 2009-02-21 09:37:48.000000000 -0500
-@@ -18,7 +18,19 @@ static inline void native_set_pte(pte_t
-
- static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- *pmdp = pmd;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/pgtable_32.h linux-2.6.28.7/arch/x86/include/asm/pgtable_32.h
---- linux-2.6.28.7/arch/x86/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500
-@@ -25,8 +25,6 @@
- struct mm_struct;
- struct vm_area_struct;
-
--extern pgd_t swapper_pg_dir[1024];
--
- static inline void pgtable_cache_init(void) { }
- static inline void check_pgt_cache(void) { }
- void paging_init(void);
-@@ -46,6 +44,11 @@ extern void set_pmd_pfn(unsigned long, u
- # include <asm/pgtable-2level-defs.h>
- #endif
-
-+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-+#ifdef CONFIG_X86_PAE
-+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
-+#endif
-+
- #define PGDIR_SIZE (1UL << PGDIR_SHIFT)
- #define PGDIR_MASK (~(PGDIR_SIZE - 1))
-
-@@ -83,7 +86,7 @@ extern void set_pmd_pfn(unsigned long, u
- #undef TEST_ACCESS_OK
-
- /* The boot page tables (all created as a single array) */
--extern unsigned long pg0[];
-+extern pte_t pg0[];
-
- #define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
-
-@@ -175,6 +178,9 @@ do { \
-
- #endif /* !__ASSEMBLY__ */
-
-+#define HAVE_ARCH_UNMAPPED_AREA
-+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
-+
- /*
- * kern_addr_valid() is (1) for FLATMEM and (0) for
- * SPARSEMEM and DISCONTIGMEM
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/pgtable-3level.h linux-2.6.28.7/arch/x86/include/asm/pgtable-3level.h
---- linux-2.6.28.7/arch/x86/include/asm/pgtable-3level.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/pgtable-3level.h 2009-02-21 09:37:48.000000000 -0500
-@@ -70,12 +70,36 @@ static inline void native_set_pte_atomic
-
- static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- static inline void native_set_pud(pud_t *pudp, pud_t pud)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- /*
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/pgtable_64.h linux-2.6.28.7/arch/x86/include/asm/pgtable_64.h
---- linux-2.6.28.7/arch/x86/include/asm/pgtable_64.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/pgtable_64.h 2009-02-21 09:37:48.000000000 -0500
-@@ -15,9 +15,12 @@
-
- extern pud_t level3_kernel_pgt[512];
- extern pud_t level3_ident_pgt[512];
-+extern pud_t level3_vmalloc_pgt[512];
-+extern pud_t level3_vmemmap_pgt[512];
- extern pmd_t level2_kernel_pgt[512];
- extern pmd_t level2_fixmap_pgt[512];
--extern pmd_t level2_ident_pgt[512];
-+extern pmd_t level2_ident_pgt[512*4];
-+extern pte_t level1_fixmap_pgt[512];
- extern pgd_t init_level4_pgt[];
-
- #define swapper_pg_dir init_level4_pgt
-@@ -106,7 +109,19 @@ static inline pte_t native_ptep_get_and_
-
- static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- *pmdp = pmd;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- static inline void native_pmd_clear(pmd_t *pmd)
-@@ -158,17 +173,17 @@ static inline void native_pgd_clear(pgd_
-
- static inline int pgd_bad(pgd_t pgd)
- {
-- return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
-+ return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
- }
-
- static inline int pud_bad(pud_t pud)
- {
-- return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
-+ return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
- }
-
- static inline int pmd_bad(pmd_t pmd)
- {
-- return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
-+ return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
- }
-
- #define pte_none(x) (!pte_val((x)))
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/pgtable.h linux-2.6.28.7/arch/x86/include/asm/pgtable.h
---- linux-2.6.28.7/arch/x86/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
-@@ -14,12 +14,11 @@
- #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
- #define _PAGE_BIT_PAT 7 /* on 4KB pages */
- #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
--#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
-+#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */
- #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
- #define _PAGE_BIT_UNUSED3 11
- #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
--#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
--#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
-+#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL
- #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
-
- #define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
-@@ -31,7 +30,6 @@
- #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
- #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
- #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
--#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
- #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
- #define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
- #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
-@@ -43,7 +41,7 @@
- #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
- #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
- #else
--#define _PAGE_NX (_AT(pteval_t, 0))
-+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
- #endif
-
- /* If _PAGE_PRESENT is clear, we use these: */
-@@ -83,6 +81,9 @@
- #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED)
-
-+#define PAGE_READONLY_NOEXEC PAGE_READONLY
-+#define PAGE_SHARED_NOEXEC PAGE_SHARED
-+
- #define __PAGE_KERNEL_EXEC \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
- #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
-@@ -94,7 +95,7 @@
- #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
- #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
- #define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
--#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
-+#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_RO | _PAGE_PCD | _PAGE_PWT | _PAGE_USER)
- #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
- #define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
- #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-@@ -153,7 +154,7 @@
- * bits are combined, this will alow user to access the high address mapped
- * VDSO in the presence of CONFIG_COMPAT_VDSO
- */
--#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
-+#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
- #define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
- #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
- #endif
-@@ -170,10 +171,17 @@ extern unsigned long empty_zero_page[PAG
- extern spinlock_t pgd_lock;
- extern struct list_head pgd_list;
-
-+extern pteval_t __supported_pte_mask;
-+
- /*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-+static inline int pte_user(pte_t pte)
-+{
-+ return pte_val(pte) & _PAGE_USER;
-+}
-+
- static inline int pte_dirty(pte_t pte)
- {
- return pte_flags(pte) & _PAGE_DIRTY;
-@@ -242,9 +250,29 @@ static inline pte_t pte_wrprotect(pte_t
- return __pte(pte_val(pte) & ~_PAGE_RW);
- }
-
-+static inline pte_t pte_mkread(pte_t pte)
-+{
-+ return __pte(pte_val(pte) | _PAGE_USER);
-+}
-+
- static inline pte_t pte_mkexec(pte_t pte)
- {
-- return __pte(pte_val(pte) & ~_PAGE_NX);
-+#ifdef CONFIG_X86_PAE
-+ if (__supported_pte_mask & _PAGE_NX)
-+ return __pte(pte_val(pte) & ~(pteval_t)_PAGE_NX);
-+ else
-+#endif
-+ return __pte(pte_val(pte) | _PAGE_USER);
-+}
-+
-+static inline pte_t pte_exprotect(pte_t pte)
-+{
-+#ifdef CONFIG_X86_PAE
-+ if (__supported_pte_mask & _PAGE_NX)
-+ return __pte(pte_val(pte) | _PAGE_NX);
-+ else
-+#endif
-+ return __pte(pte_val(pte) & ~_PAGE_USER);
- }
-
- static inline pte_t pte_mkdirty(pte_t pte)
-@@ -287,8 +315,6 @@ static inline pte_t pte_mkspecial(pte_t
- return __pte(pte_val(pte) | _PAGE_SPECIAL);
- }
-
--extern pteval_t __supported_pte_mask;
--
- static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
- {
- return __pte((((phys_addr_t)page_nr << PAGE_SHIFT) |
-@@ -552,7 +578,19 @@ static inline void ptep_set_wrprotect(st
- */
- static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
- {
-- memcpy(dst, src, count * sizeof(pgd_t));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ memcpy(dst, src, count * sizeof(pgd_t));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/processor.h linux-2.6.28.7/arch/x86/include/asm/processor.h
---- linux-2.6.28.7/arch/x86/include/asm/processor.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/processor.h 2009-02-21 09:37:48.000000000 -0500
-@@ -271,7 +271,7 @@ struct tss_struct {
-
- } ____cacheline_aligned;
-
--DECLARE_PER_CPU(struct tss_struct, init_tss);
-+extern struct tss_struct init_tss[NR_CPUS];
-
- /*
- * Save the original ist values for checking stack pointers during debugging
-@@ -822,11 +822,20 @@ static inline void spin_lock_prefetch(co
- * User space process size: 3GB (default).
- */
- #define TASK_SIZE PAGE_OFFSET
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2)
-+#endif
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
-+#else
- #define STACK_TOP TASK_SIZE
--#define STACK_TOP_MAX STACK_TOP
-+#endif
-+#define STACK_TOP_MAX TASK_SIZE
-
- #define INIT_THREAD { \
-- .sp0 = sizeof(init_stack) + (long)&init_stack, \
-+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
- .vm86_info = NULL, \
- .sysenter_cs = __KERNEL_CS, \
- .io_bitmap_ptr = NULL, \
-@@ -841,7 +850,7 @@ static inline void spin_lock_prefetch(co
- */
- #define INIT_TSS { \
- .x86_tss = { \
-- .sp0 = sizeof(init_stack) + (long)&init_stack, \
-+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
- .ss0 = __KERNEL_DS, \
- .ss1 = __KERNEL_CS, \
- .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
-@@ -852,11 +861,7 @@ static inline void spin_lock_prefetch(co
- extern unsigned long thread_saved_pc(struct task_struct *tsk);
-
- #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
--#define KSTK_TOP(info) \
--({ \
-- unsigned long *__ptr = (unsigned long *)(info); \
-- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
--})
-+#define KSTK_TOP(info) ((info)->task.thread.sp0)
-
- /*
- * The below -8 is to reserve 8 bytes on top of the ring0 stack.
-@@ -871,7 +876,7 @@ extern unsigned long thread_saved_pc(str
- #define task_pt_regs(task) \
- ({ \
- struct pt_regs *__regs__; \
-- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
-+ __regs__ = (struct pt_regs *)((task)->thread.sp0); \
- __regs__ - 1; \
- })
-
-@@ -887,7 +892,7 @@ extern unsigned long thread_saved_pc(str
- * space during mmap's.
- */
- #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
-- 0xc0000000 : 0xFFFFe000)
-+ 0xc0000000 : 0xFFFFf000)
-
- #define TASK_SIZE (test_thread_flag(TIF_IA32) ? \
- IA32_PAGE_OFFSET : TASK_SIZE64)
-@@ -924,6 +929,10 @@ extern void start_thread(struct pt_regs
- */
- #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
-+#endif
-+
- #define KSTK_EIP(task) (task_pt_regs(task)->ip)
-
- /* Get/set a process' ability to use the timestamp counter instruction */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/ptrace.h linux-2.6.28.7/arch/x86/include/asm/ptrace.h
---- linux-2.6.28.7/arch/x86/include/asm/ptrace.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/ptrace.h 2009-02-21 09:37:48.000000000 -0500
-@@ -187,28 +187,29 @@ static inline unsigned long regs_return_
- }
-
- /*
-- * user_mode_vm(regs) determines whether a register set came from user mode.
-+ * user_mode(regs) determines whether a register set came from user mode.
- * This is true if V8086 mode was enabled OR if the register set was from
- * protected mode with RPL-3 CS value. This tricky test checks that with
- * one comparison. Many places in the kernel can bypass this full check
-- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
-+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
-+ * be used.
- */
--static inline int user_mode(struct pt_regs *regs)
-+static inline int user_mode_novm(struct pt_regs *regs)
- {
- #ifdef CONFIG_X86_32
- return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
- #else
-- return !!(regs->cs & 3);
-+ return !!(regs->cs & SEGMENT_RPL_MASK);
- #endif
- }
-
--static inline int user_mode_vm(struct pt_regs *regs)
-+static inline int user_mode(struct pt_regs *regs)
- {
- #ifdef CONFIG_X86_32
- return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
- USER_RPL;
- #else
-- return user_mode(regs);
-+ return user_mode_novm(regs);
- #endif
- }
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/reboot.h linux-2.6.28.7/arch/x86/include/asm/reboot.h
---- linux-2.6.28.7/arch/x86/include/asm/reboot.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/reboot.h 2009-02-21 09:37:48.000000000 -0500
-@@ -16,6 +16,6 @@ extern struct machine_ops machine_ops;
-
- void native_machine_crash_shutdown(struct pt_regs *regs);
- void native_machine_shutdown(void);
--void machine_real_restart(const unsigned char *code, int length);
-+void machine_real_restart(const unsigned char *code, unsigned int length);
-
- #endif /* _ASM_X86_REBOOT_H */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/rwsem.h linux-2.6.28.7/arch/x86/include/asm/rwsem.h
---- linux-2.6.28.7/arch/x86/include/asm/rwsem.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/rwsem.h 2009-02-21 09:37:48.000000000 -0500
-@@ -106,10 +106,26 @@ static inline void __down_read(struct rw
- {
- asm volatile("# beginning down_read\n\t"
- LOCK_PREFIX " incl (%%eax)\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "decl (%%eax)\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- /* adds 0x00000001, returns the old value */
-- " jns 1f\n"
-+ " jns 2f\n"
- " call call_rwsem_down_read_failed\n"
-- "1:\n\t"
-+ "2:\n\t"
- "# ending down_read\n\t"
- : "+m" (sem->count)
- : "a" (sem)
-@@ -124,13 +140,29 @@ static inline int __down_read_trylock(st
- __s32 result, tmp;
- asm volatile("# beginning __down_read_trylock\n\t"
- " movl %0,%1\n\t"
-- "1:\n\t"
-+ "2:\n\t"
- " movl %1,%2\n\t"
- " addl %3,%2\n\t"
-- " jle 2f\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ "subl %3,%2\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ " jle 3f\n\t"
- LOCK_PREFIX " cmpxchgl %2,%0\n\t"
-- " jnz 1b\n\t"
-- "2:\n\t"
-+ " jnz 2b\n\t"
-+ "3:\n\t"
- "# ending __down_read_trylock\n\t"
- : "+m" (sem->count), "=&a" (result), "=&r" (tmp)
- : "i" (RWSEM_ACTIVE_READ_BIAS)
-@@ -148,12 +180,28 @@ static inline void __down_write_nested(s
- tmp = RWSEM_ACTIVE_WRITE_BIAS;
- asm volatile("# beginning down_write\n\t"
- LOCK_PREFIX " xadd %%edx,(%%eax)\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ "movl %%edx,(%%eax)\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- /* subtract 0x0000ffff, returns the old value */
- " testl %%edx,%%edx\n\t"
- /* was the count 0 before? */
-- " jz 1f\n"
-+ " jz 2f\n"
- " call call_rwsem_down_write_failed\n"
-- "1:\n"
-+ "2:\n"
- "# ending down_write"
- : "+m" (sem->count), "=d" (tmp)
- : "a" (sem), "1" (tmp)
-@@ -186,10 +234,26 @@ static inline void __up_read(struct rw_s
- __s32 tmp = -RWSEM_ACTIVE_READ_BIAS;
- asm volatile("# beginning __up_read\n\t"
- LOCK_PREFIX " xadd %%edx,(%%eax)\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ "movl %%edx,(%%eax)\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- /* subtracts 1, returns the old value */
-- " jns 1f\n\t"
-+ " jns 2f\n\t"
- " call call_rwsem_wake\n"
-- "1:\n"
-+ "2:\n"
- "# ending __up_read\n"
- : "+m" (sem->count), "=d" (tmp)
- : "a" (sem), "1" (tmp)
-@@ -204,11 +268,27 @@ static inline void __up_write(struct rw_
- asm volatile("# beginning __up_write\n\t"
- " movl %2,%%edx\n\t"
- LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ "movl %%edx,(%%eax)\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- /* tries to transition
- 0xffff0001 -> 0x00000000 */
-- " jz 1f\n"
-+ " jz 2f\n"
- " call call_rwsem_wake\n"
-- "1:\n\t"
-+ "2:\n\t"
- "# ending __up_write\n"
- : "+m" (sem->count)
- : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS)
-@@ -222,10 +302,26 @@ static inline void __downgrade_write(str
- {
- asm volatile("# beginning __downgrade_write\n\t"
- LOCK_PREFIX " addl %2,(%%eax)\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "subl %2,(%%eax)\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- /* transitions 0xZZZZ0001 -> 0xYYYY0001 */
-- " jns 1f\n\t"
-+ " jns 2f\n\t"
- " call call_rwsem_downgrade_wake\n"
-- "1:\n\t"
-+ "2:\n\t"
- "# ending __downgrade_write\n"
- : "+m" (sem->count)
- : "a" (sem), "i" (-RWSEM_WAITING_BIAS)
-@@ -237,7 +333,23 @@ static inline void __downgrade_write(str
- */
- static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
- {
-- asm volatile(LOCK_PREFIX "addl %1,%0"
-+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "subl %1,%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (sem->count)
- : "ir" (delta));
- }
-@@ -249,7 +361,23 @@ static inline int rwsem_atomic_update(in
- {
- int tmp = delta;
-
-- asm volatile(LOCK_PREFIX "xadd %0,%1"
-+ asm volatile(LOCK_PREFIX "xadd %0,%1\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ "movl %0,%1\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+r" (tmp), "+m" (sem->count)
- : : "memory");
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/segment.h linux-2.6.28.7/arch/x86/include/asm/segment.h
---- linux-2.6.28.7/arch/x86/include/asm/segment.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/segment.h 2009-02-21 09:37:48.000000000 -0500
-@@ -88,13 +88,19 @@
- #define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14)
- #define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)
-
--#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15)
-+#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15)
- #ifdef CONFIG_SMP
- #define __KERNEL_PERCPU (GDT_ENTRY_PERCPU * 8)
- #else
- #define __KERNEL_PERCPU 0
- #endif
-
-+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE + 16)
-+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
-+
-+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE + 17)
-+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
-+
- #define GDT_ENTRY_DOUBLEFAULT_TSS 31
-
- /*
-@@ -132,7 +138,7 @@
- */
-
- /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
--#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
-+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
-
-
- #else
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/spinlock.h linux-2.6.28.7/arch/x86/include/asm/spinlock.h
---- linux-2.6.28.7/arch/x86/include/asm/spinlock.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/spinlock.h 2009-02-21 09:37:48.000000000 -0500
-@@ -310,18 +310,50 @@ static inline int __raw_write_can_lock(r
- static inline void __raw_read_lock(raw_rwlock_t *rw)
- {
- asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t"
-- "jns 1f\n"
-- "call __read_lock_failed\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
- "1:\n"
-+ LOCK_PREFIX " addl $1,(%0)\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "jns 2f\n"
-+ "call __read_lock_failed\n\t"
-+ "2:\n"
- ::LOCK_PTR_REG (rw) : "memory");
- }
-
- static inline void __raw_write_lock(raw_rwlock_t *rw)
- {
- asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t"
-- "jz 1f\n"
-- "call __write_lock_failed\n\t"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
- "1:\n"
-+ LOCK_PREFIX " addl %1,(%0)\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ "jz 2f\n"
-+ "call __write_lock_failed\n\t"
-+ "2:\n"
- ::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory");
- }
-
-@@ -348,12 +380,45 @@ static inline int __raw_write_trylock(ra
-
- static inline void __raw_read_unlock(raw_rwlock_t *rw)
- {
-- asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory");
-+ asm volatile(LOCK_PREFIX "incl %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "decl %0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
-+ :"+m" (rw->lock) : : "memory");
- }
-
- static inline void __raw_write_unlock(raw_rwlock_t *rw)
- {
-- asm volatile(LOCK_PREFIX "addl %1, %0"
-+ asm volatile(LOCK_PREFIX "addl %1, %0\n"
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#ifdef CONFIG_X86_32
-+ "into\n0:\n"
-+#else
-+ "jno 0f\n"
-+ "int $4\n0:\n"
-+#endif
-+ ".pushsection .fixup,\"ax\"\n"
-+ "1:\n"
-+ LOCK_PREFIX "subl %1,%0\n"
-+ "jmp 0b\n"
-+ ".popsection\n"
-+ _ASM_EXTABLE(0b, 1b)
-+#endif
-+
- : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory");
- }
-
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/system.h linux-2.6.28.7/arch/x86/include/asm/system.h
---- linux-2.6.28.7/arch/x86/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500
-@@ -95,6 +95,8 @@ do { \
- ".globl thread_return\n" \
- "thread_return:\n\t" \
- "movq %%gs:%P[pda_pcurrent],%%rsi\n\t" \
-+ "movq %P[task_canary](%%rsi),%%r8\n\t" \
-+ "movq %%r8,%%gs:%P[pda_canary]\n\t" \
- "movq %P[thread_info](%%rsi),%%r8\n\t" \
- LOCK_PREFIX "btr %[tif_fork],%P[ti_flags](%%r8)\n\t" \
- "movq %%rax,%%rdi\n\t" \
-@@ -106,7 +108,9 @@ do { \
- [ti_flags] "i" (offsetof(struct thread_info, flags)), \
- [tif_fork] "i" (TIF_FORK), \
- [thread_info] "i" (offsetof(struct task_struct, stack)), \
-- [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)) \
-+ [task_canary] "i" (offsetof(struct task_struct, stack_canary)), \
-+ [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)), \
-+ [pda_canary] "i" (offsetof(struct x8664_pda, stack_canary))\
- : "memory", "cc" __EXTRA_CLOBBER)
- #endif
-
-@@ -169,7 +173,7 @@ static inline unsigned long get_limit(un
- {
- unsigned long __limit;
- asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
-- return __limit + 1;
-+ return __limit;
- }
-
- static inline void native_clts(void)
-@@ -295,6 +299,21 @@ static inline void native_wbinvd(void)
-
- #define stts() write_cr0(read_cr0() | X86_CR0_TS)
-
-+#define pax_open_kernel(cr0) \
-+do { \
-+ typecheck(unsigned long, cr0); \
-+ preempt_disable(); \
-+ cr0 = read_cr0(); \
-+ write_cr0(cr0 & ~X86_CR0_WP); \
-+} while (0)
-+
-+#define pax_close_kernel(cr0) \
-+do { \
-+ typecheck(unsigned long, cr0); \
-+ write_cr0(cr0); \
-+ preempt_enable_no_resched(); \
-+} while (0)
-+
- #endif /* __KERNEL__ */
-
- static inline void clflush(volatile void *__p)
-@@ -309,7 +328,7 @@ void enable_hlt(void);
-
- void cpu_idle_wait(void);
-
--extern unsigned long arch_align_stack(unsigned long sp);
-+#define arch_align_stack(x) ((x) & ~0xfUL)
- extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
-
- void default_idle(void);
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/uaccess_64.h linux-2.6.28.7/arch/x86/include/asm/uaccess_64.h
---- linux-2.6.28.7/arch/x86/include/asm/uaccess_64.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/uaccess_64.h 2009-02-21 09:37:48.000000000 -0500
-@@ -10,6 +10,8 @@
- #include <linux/lockdep.h>
- #include <asm/page.h>
-
-+#define set_fs(x) (current_thread_info()->addr_limit = (x))
-+
- /*
- * Copy To/From Userspace
- */
-diff -urNp linux-2.6.28.7/arch/x86/include/asm/uaccess.h linux-2.6.28.7/arch/x86/include/asm/uaccess.h
---- linux-2.6.28.7/arch/x86/include/asm/uaccess.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/include/asm/uaccess.h 2009-02-21 09:37:48.000000000 -0500
-@@ -10,6 +10,7 @@
- #include <linux/string.h>
- #include <asm/asm.h>
- #include <asm/page.h>
-+#include <asm/segment.h>
-
- #define VERIFY_READ 0
- #define VERIFY_WRITE 1
-@@ -29,7 +30,12 @@
-
- #define get_ds() (KERNEL_DS)
- #define get_fs() (current_thread_info()->addr_limit)
-+#ifdef CONFIG_X86_32
-+void __set_fs(mm_segment_t x, int cpu);
-+void set_fs(mm_segment_t x);
-+#else
- #define set_fs(x) (current_thread_info()->addr_limit = (x))
-+#endif
-
- #define segment_eq(a, b) ((a).seg == (b).seg)
-
-@@ -186,9 +192,12 @@ extern int __get_user_bad(void);
-
- #ifdef CONFIG_X86_32
- #define __put_user_u64(x, addr, err) \
-- asm volatile("1: movl %%eax,0(%2)\n" \
-- "2: movl %%edx,4(%2)\n" \
-+ asm volatile(" movw %w5,%%ds\n" \
-+ "1: movl %%eax,%%ds:0(%2)\n" \
-+ "2: movl %%edx,%%ds:4(%2)\n" \
- "3:\n" \
-+ " pushl %%ss\n" \
-+ " popl %%ds\n" \
- ".section .fixup,\"ax\"\n" \
- "4: movl %3,%0\n" \
- " jmp 3b\n" \
-@@ -196,7 +205,8 @@ extern int __get_user_bad(void);
- _ASM_EXTABLE(1b, 4b) \
- _ASM_EXTABLE(2b, 4b) \
- : "=r" (err) \
-- : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err))
-+ : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err), \
-+ "r"(__USER_DS))
-
- #define __put_user_x8(x, ptr, __ret_pu) \
- asm volatile("call __put_user_8" : "=a" (__ret_pu) \
-@@ -336,6 +346,22 @@ do { \
- } \
- } while (0)
-
-+#ifdef CONFIG_X86_32
-+#define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
-+ asm volatile(" movw %w5,%%ds\n" \
-+ "1: mov"itype" %%ds:%2,%"rtype"1\n" \
-+ "2:\n" \
-+ " pushl %%ss\n" \
-+ " popl %%ds\n" \
-+ ".section .fixup,\"ax\"\n" \
-+ "3: movl %3,%0\n" \
-+ " xor"itype" %"rtype"1,%"rtype"1\n" \
-+ " jmp 2b\n" \
-+ ".previous\n" \
-+ _ASM_EXTABLE(1b, 3b) \
-+ : "=r" (err), ltype (x) \
-+ : "m" (__m(addr)), "i" (errret), "0" (err), "r"(__USER_DS))
-+#else
- #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
- asm volatile("1: mov"itype" %2,%"rtype"1\n" \
- "2:\n" \
-@@ -347,6 +373,7 @@ do { \
- _ASM_EXTABLE(1b, 3b) \
- : "=r" (err), ltype(x) \
- : "m" (__m(addr)), "i" (errret), "0" (err))
-+#endif
-
- #define __put_user_nocheck(x, ptr, size) \
- ({ \
-@@ -373,6 +400,22 @@ struct __large_struct { unsigned long bu
- * we do not write to any memory gcc knows about, so there are no
- * aliasing issues.
- */
-+#ifdef CONFIG_X86_32
-+#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
-+ asm volatile(" movw %w5,%%ds\n" \
-+ "1: mov"itype" %"rtype"1,%%ds:%2\n" \
-+ "2:\n" \
-+ " pushl %%ss\n" \
-+ " popl %%ds\n" \
-+ ".section .fixup,\"ax\"\n" \
-+ "3: movl %3,%0\n" \
-+ " jmp 2b\n" \
-+ ".previous\n" \
-+ _ASM_EXTABLE(1b, 3b) \
-+ : "=r"(err) \
-+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err),\
-+ "r"(__USER_DS))
-+#else
- #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
- asm volatile("1: mov"itype" %"rtype"1,%2\n" \
- "2:\n" \
-@@ -383,6 +426,7 @@ struct __large_struct { unsigned long bu
- _ASM_EXTABLE(1b, 3b) \
- : "=r"(err) \
- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
-+#endif
- /**
- * __get_user: - Get a simple variable from user space, with less checking.
- * @x: Variable to store result.
-@@ -443,6 +487,7 @@ extern struct movsl_mask {
-
- #define ARCH_HAS_NOCACHE_UACCESS 1
-
-+#define ARCH_HAS_SORT_EXTABLE
- #ifdef CONFIG_X86_32
- # include "uaccess_32.h"
- #else
-diff -urNp linux-2.6.28.7/arch/x86/Kconfig linux-2.6.28.7/arch/x86/Kconfig
---- linux-2.6.28.7/arch/x86/Kconfig 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/Kconfig 2009-02-21 09:37:48.000000000 -0500
-@@ -935,7 +935,7 @@ config PAGE_OFFSET
- hex
- default 0xB0000000 if VMSPLIT_3G_OPT
- default 0x80000000 if VMSPLIT_2G
-- default 0x78000000 if VMSPLIT_2G_OPT
-+ default 0x70000000 if VMSPLIT_2G_OPT
- default 0x40000000 if VMSPLIT_1G
- default 0xC0000000
- depends on X86_32
-@@ -1337,8 +1337,7 @@ config KEXEC_JUMP
- config PHYSICAL_START
- hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
- default "0x1000000" if X86_NUMAQ
-- default "0x200000" if X86_64
-- default "0x100000"
-+ default "0x200000"
- help
- This gives the physical address where the kernel is loaded.
-
-@@ -1430,9 +1429,9 @@ config HOTPLUG_CPU
- Say N if you want to disable CPU hotplug.
-
- config COMPAT_VDSO
-- def_bool y
-+ def_bool n
- prompt "Compat VDSO support"
-- depends on X86_32 || IA32_EMULATION
-+ depends on (X86_32 || IA32_EMULATION) && !PAX_NOEXEC
- help
- Map the 32-bit VDSO to the predictable old-style address too.
- ---help---
-diff -urNp linux-2.6.28.7/arch/x86/Kconfig.cpu linux-2.6.28.7/arch/x86/Kconfig.cpu
---- linux-2.6.28.7/arch/x86/Kconfig.cpu 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/Kconfig.cpu 2009-02-21 09:37:48.000000000 -0500
-@@ -331,7 +331,7 @@ config X86_PPRO_FENCE
-
- config X86_F00F_BUG
- def_bool y
-- depends on M586MMX || M586TSC || M586 || M486 || M386
-+ depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC
-
- config X86_WP_WORKS_OK
- def_bool y
-@@ -351,7 +351,7 @@ config X86_POPAD_OK
-
- config X86_ALIGNMENT_16
- def_bool y
-- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
-+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
-
- config X86_INTEL_USERCOPY
- def_bool y
-@@ -397,7 +397,7 @@ config X86_CMPXCHG64
- # generates cmov.
- config X86_CMOV
- def_bool y
-- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64)
-+ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64)
-
- config X86_MINIMUM_CPU_FAMILY
- int
-diff -urNp linux-2.6.28.7/arch/x86/Kconfig.debug linux-2.6.28.7/arch/x86/Kconfig.debug
---- linux-2.6.28.7/arch/x86/Kconfig.debug 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/Kconfig.debug 2009-02-21 09:37:48.000000000 -0500
-@@ -107,7 +107,7 @@ config X86_PTDUMP
- config DEBUG_RODATA
- bool "Write protect kernel read-only data structures"
- default y
-- depends on DEBUG_KERNEL
-+ depends on DEBUG_KERNEL && BROKEN
- help
- Mark the kernel read-only data as write-protected in the pagetables,
- in order to catch accidental (and incorrect) writes to such const
-diff -urNp linux-2.6.28.7/arch/x86/kernel/acpi/boot.c linux-2.6.28.7/arch/x86/kernel/acpi/boot.c
---- linux-2.6.28.7/arch/x86/kernel/acpi/boot.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/acpi/boot.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1645,7 +1645,7 @@ static struct dmi_system_id __initdata a
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
- },
- },
-- {}
-+ { NULL, NULL, {{0, {0}}}, NULL}
- };
-
- /*
-diff -urNp linux-2.6.28.7/arch/x86/kernel/acpi/realmode/wakeup.S linux-2.6.28.7/arch/x86/kernel/acpi/realmode/wakeup.S
---- linux-2.6.28.7/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-21 09:37:48.000000000 -0500
-@@ -104,7 +104,7 @@ _start:
- movl %eax, %ecx
- orl %edx, %ecx
- jz 1f
-- movl $0xc0000080, %ecx
-+ mov $MSR_EFER, %ecx
- wrmsr
- 1:
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/acpi/sleep.c linux-2.6.28.7/arch/x86/kernel/acpi/sleep.c
---- linux-2.6.28.7/arch/x86/kernel/acpi/sleep.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/acpi/sleep.c 2009-02-21 09:37:48.000000000 -0500
-@@ -37,6 +37,10 @@ int acpi_save_state_mem(void)
- {
- struct wakeup_header *header;
-
-+#if defined(CONFIG_64BIT) && defined(CONFIG_SMP) && defined(CONFIG_PAX_KERNEXEC)
-+ unsigned long cr0;
-+#endif
-+
- if (!acpi_realmode) {
- printk(KERN_ERR "Could not allocate memory during boot, "
- "S3 disabled\n");
-@@ -99,8 +103,18 @@ int acpi_save_state_mem(void)
- header->trampoline_segment = setup_trampoline() >> 4;
- #ifdef CONFIG_SMP
- stack_start.sp = temp_stack + sizeof(temp_stack);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- early_gdt_descr.address =
- (unsigned long)get_cpu_gdt_table(smp_processor_id());
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- #endif
- initial_code = (unsigned long)wakeup_long64;
- saved_magic = 0x123456789abcdef0;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/acpi/wakeup_32.S linux-2.6.28.7/arch/x86/kernel/acpi/wakeup_32.S
---- linux-2.6.28.7/arch/x86/kernel/acpi/wakeup_32.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/acpi/wakeup_32.S 2009-02-21 09:37:48.000000000 -0500
-@@ -30,13 +30,11 @@ wakeup_pmode_return:
- # and restore the stack ... but you need gdt for this to work
- movl saved_context_esp, %esp
-
-- movl %cs:saved_magic, %eax
-- cmpl $0x12345678, %eax
-+ cmpl $0x12345678, saved_magic
- jne bogus_magic
-
- # jump to place where we left off
-- movl saved_eip, %eax
-- jmp *%eax
-+ jmp *(saved_eip)
-
- bogus_magic:
- jmp bogus_magic
-diff -urNp linux-2.6.28.7/arch/x86/kernel/alternative.c linux-2.6.28.7/arch/x86/kernel/alternative.c
---- linux-2.6.28.7/arch/x86/kernel/alternative.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/alternative.c 2009-02-21 09:37:48.000000000 -0500
-@@ -393,7 +393,7 @@ void apply_paravirt(struct paravirt_patc
-
- BUG_ON(p->len > MAX_PATCH_LEN);
- /* prep the buffer with the original instructions */
-- memcpy(insnbuf, p->instr, p->len);
-+ memcpy(insnbuf, ktla_ktva(p->instr), p->len);
- used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
- (unsigned long)p->instr, p->len);
-
-@@ -473,11 +473,26 @@ void __init alternative_instructions(voi
- * instructions. And on the local CPU you need to be protected again NMI or MCE
- * handlers seeing an inconsistent instruction while you patch.
- */
--void *text_poke_early(void *addr, const void *opcode, size_t len)
-+void *__kprobes text_poke_early(void *addr, const void *opcode, size_t len)
- {
- unsigned long flags;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- local_irq_save(flags);
-- memcpy(addr, opcode, len);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ memcpy(ktla_ktva(addr), opcode, len);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- local_irq_restore(flags);
- sync_core();
- /* Could also do a CLFLUSH here to speed up CPU recovery; but
-@@ -498,33 +513,27 @@ void *text_poke_early(void *addr, const
- */
- void *__kprobes text_poke(void *addr, const void *opcode, size_t len)
- {
-- unsigned long flags;
-- char *vaddr;
-- int nr_pages = 2;
-+ unsigned char *vaddr = ktla_ktva(addr);
- struct page *pages[2];
-- int i;
-+ size_t i;
-+
-+ if (!core_kernel_text((unsigned long)addr)
-
-- if (!core_kernel_text((unsigned long)addr)) {
-- pages[0] = vmalloc_to_page(addr);
-- pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
-+#if defined(CONFIG_X86_32) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ && (vaddr < MODULES_VADDR || MODULES_END < vaddr)
-+#endif
-+
-+ ) {
-+ pages[0] = vmalloc_to_page(vaddr);
-+ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
- } else {
-- pages[0] = virt_to_page(addr);
-+ pages[0] = virt_to_page(vaddr);
- WARN_ON(!PageReserved(pages[0]));
-- pages[1] = virt_to_page(addr + PAGE_SIZE);
-+ pages[1] = virt_to_page(vaddr + PAGE_SIZE);
- }
- BUG_ON(!pages[0]);
-- if (!pages[1])
-- nr_pages = 1;
-- vaddr = vmap(pages, nr_pages, VM_MAP, PAGE_KERNEL);
-- BUG_ON(!vaddr);
-- local_irq_save(flags);
-- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
-- local_irq_restore(flags);
-- vunmap(vaddr);
-- sync_core();
-- /* Could also do a CLFLUSH here to speed up CPU recovery; but
-- that causes hangs on some VIA CPUs. */
-+ text_poke_early(addr, opcode, len);
- for (i = 0; i < len; i++)
-- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
-+ BUG_ON((vaddr)[i] != ((unsigned char *)opcode)[i]);
- return addr;
- }
-diff -urNp linux-2.6.28.7/arch/x86/kernel/apm_32.c linux-2.6.28.7/arch/x86/kernel/apm_32.c
---- linux-2.6.28.7/arch/x86/kernel/apm_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/apm_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -407,7 +407,7 @@ static DECLARE_WAIT_QUEUE_HEAD(apm_waitq
- static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
- static struct apm_user *user_list;
- static DEFINE_SPINLOCK(user_list_lock);
--static const struct desc_struct bad_bios_desc = { { { 0, 0x00409200 } } };
-+static const struct desc_struct bad_bios_desc = { { { 0, 0x00409300 } } };
-
- static const char driver_version[] = "1.16ac"; /* no spaces */
-
-@@ -602,19 +602,42 @@ static u8 apm_bios_call(u32 func, u32 eb
- struct desc_struct save_desc_40;
- struct desc_struct *gdt;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- cpus = apm_save_cpus();
-
- cpu = get_cpu();
- gdt = get_cpu_gdt_table(cpu);
- save_desc_40 = gdt[0x40 / 8];
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- gdt[0x40 / 8] = bad_bios_desc;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- apm_irq_save(flags);
- APM_DO_SAVE_SEGS;
- apm_bios_call_asm(func, ebx_in, ecx_in, eax, ebx, ecx, edx, esi);
- APM_DO_RESTORE_SEGS;
- apm_irq_restore(flags);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- gdt[0x40 / 8] = save_desc_40;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- put_cpu();
- apm_restore_cpus(cpus);
-
-@@ -645,19 +668,42 @@ static u8 apm_bios_call_simple(u32 func,
- struct desc_struct save_desc_40;
- struct desc_struct *gdt;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- cpus = apm_save_cpus();
-
- cpu = get_cpu();
- gdt = get_cpu_gdt_table(cpu);
- save_desc_40 = gdt[0x40 / 8];
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- gdt[0x40 / 8] = bad_bios_desc;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- apm_irq_save(flags);
- APM_DO_SAVE_SEGS;
- error = apm_bios_call_simple_asm(func, ebx_in, ecx_in, eax);
- APM_DO_RESTORE_SEGS;
- apm_irq_restore(flags);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- gdt[0x40 / 8] = save_desc_40;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- put_cpu();
- apm_restore_cpus(cpus);
- return error;
-@@ -929,7 +975,7 @@ recalc:
-
- static void apm_power_off(void)
- {
-- unsigned char po_bios_call[] = {
-+ const unsigned char po_bios_call[] = {
- 0xb8, 0x00, 0x10, /* movw $0x1000,ax */
- 0x8e, 0xd0, /* movw ax,ss */
- 0xbc, 0x00, 0xf0, /* movw $0xf000,sp */
-@@ -1876,7 +1922,10 @@ static const struct file_operations apm_
- static struct miscdevice apm_device = {
- APM_MINOR_DEV,
- "apm_bios",
-- &apm_bios_fops
-+ &apm_bios_fops,
-+ {NULL, NULL},
-+ NULL,
-+ NULL
- };
-
-
-@@ -2197,7 +2246,7 @@ static struct dmi_system_id __initdata a
- { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), },
- },
-
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}
- };
-
- /*
-@@ -2215,6 +2264,10 @@ static int __init apm_init(void)
- struct desc_struct *gdt;
- int err;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- dmi_check_system(apm_dmi_table);
-
- if (apm_info.bios.version == 0 || paravirt_enabled() || machine_is_olpc()) {
-@@ -2288,9 +2341,18 @@ static int __init apm_init(void)
- * This is for buggy BIOS's that refer to (real mode) segment 0x40
- * even though they are called in protected mode.
- */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- set_base(bad_bios_desc, __va((unsigned long)0x40 << 4));
- _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4));
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- /*
- * Set up the long jump entry point to the APM BIOS, which is called
- * from inline assembly.
-@@ -2309,6 +2371,11 @@ static int __init apm_init(void)
- * code to that CPU.
- */
- gdt = get_cpu_gdt_table(0);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- set_base(gdt[APM_CS >> 3],
- __va((unsigned long)apm_info.bios.cseg << 4));
- set_base(gdt[APM_CS_16 >> 3],
-@@ -2316,6 +2383,10 @@ static int __init apm_init(void)
- set_base(gdt[APM_DS >> 3],
- __va((unsigned long)apm_info.bios.dseg << 4));
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- proc_create("apm", 0, NULL, &apm_file_ops);
-
- kapmd_task = kthread_create(apm, NULL, "kapmd");
-diff -urNp linux-2.6.28.7/arch/x86/kernel/asm-offsets_32.c linux-2.6.28.7/arch/x86/kernel/asm-offsets_32.c
---- linux-2.6.28.7/arch/x86/kernel/asm-offsets_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/asm-offsets_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -100,6 +100,7 @@ void foo(void)
- DEFINE(PTRS_PER_PTE, PTRS_PER_PTE);
- DEFINE(PTRS_PER_PMD, PTRS_PER_PMD);
- DEFINE(PTRS_PER_PGD, PTRS_PER_PGD);
-+ DEFINE(PERCPU_MODULE_RESERVE, PERCPU_MODULE_RESERVE);
-
- OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
-
-@@ -113,6 +114,7 @@ void foo(void)
- OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
- OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
- OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
-+ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
- #endif
-
- #ifdef CONFIG_XEN
-diff -urNp linux-2.6.28.7/arch/x86/kernel/asm-offsets_64.c linux-2.6.28.7/arch/x86/kernel/asm-offsets_64.c
---- linux-2.6.28.7/arch/x86/kernel/asm-offsets_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/asm-offsets_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -122,6 +122,7 @@ int main(void)
- ENTRY(cr8);
- BLANK();
- #undef ENTRY
-+ DEFINE(TSS_size, sizeof(struct tss_struct));
- DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
- BLANK();
- DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
-diff -urNp linux-2.6.28.7/arch/x86/kernel/cpu/common.c linux-2.6.28.7/arch/x86/kernel/cpu/common.c
---- linux-2.6.28.7/arch/x86/kernel/cpu/common.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/cpu/common.c 2009-02-21 09:37:48.000000000 -0500
-@@ -2,7 +2,6 @@
- #include <linux/kernel.h>
- #include <linux/sched.h>
- #include <linux/string.h>
--#include <linux/bootmem.h>
- #include <linux/bitops.h>
- #include <linux/module.h>
- #include <linux/kgdb.h>
-@@ -41,59 +40,6 @@
-
- static struct cpu_dev *this_cpu __cpuinitdata;
-
--#ifdef CONFIG_X86_64
--/* We need valid kernel segments for data and code in long mode too
-- * IRET will check the segment types kkeil 2000/10/28
-- * Also sysret mandates a special GDT layout
-- */
--/* The TLS descriptors are currently at a different place compared to i386.
-- Hopefully nobody expects them at a fixed place (Wine?) */
--DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = {
-- [GDT_ENTRY_KERNEL32_CS] = { { { 0x0000ffff, 0x00cf9b00 } } },
-- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00af9b00 } } },
-- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9300 } } },
-- [GDT_ENTRY_DEFAULT_USER32_CS] = { { { 0x0000ffff, 0x00cffb00 } } },
-- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff300 } } },
-- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00affb00 } } },
--} };
--#else
--DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
-- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00cf9a00 } } },
-- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9200 } } },
-- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00cffa00 } } },
-- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff200 } } },
-- /*
-- * Segments used for calling PnP BIOS have byte granularity.
-- * They code segments and data segments have fixed 64k limits,
-- * the transfer segment sizes are set at run time.
-- */
-- /* 32-bit code */
-- [GDT_ENTRY_PNPBIOS_CS32] = { { { 0x0000ffff, 0x00409a00 } } },
-- /* 16-bit code */
-- [GDT_ENTRY_PNPBIOS_CS16] = { { { 0x0000ffff, 0x00009a00 } } },
-- /* 16-bit data */
-- [GDT_ENTRY_PNPBIOS_DS] = { { { 0x0000ffff, 0x00009200 } } },
-- /* 16-bit data */
-- [GDT_ENTRY_PNPBIOS_TS1] = { { { 0x00000000, 0x00009200 } } },
-- /* 16-bit data */
-- [GDT_ENTRY_PNPBIOS_TS2] = { { { 0x00000000, 0x00009200 } } },
-- /*
-- * The APM segments have byte granularity and their bases
-- * are set at run time. All have 64k limits.
-- */
-- /* 32-bit code */
-- [GDT_ENTRY_APMBIOS_BASE] = { { { 0x0000ffff, 0x00409a00 } } },
-- /* 16-bit code */
-- [GDT_ENTRY_APMBIOS_BASE+1] = { { { 0x0000ffff, 0x00009a00 } } },
-- /* data */
-- [GDT_ENTRY_APMBIOS_BASE+2] = { { { 0x0000ffff, 0x00409200 } } },
--
-- [GDT_ENTRY_ESPFIX_SS] = { { { 0x00000000, 0x00c09200 } } },
-- [GDT_ENTRY_PERCPU] = { { { 0x00000000, 0x00000000 } } },
--} };
--#endif
--EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
--
- #ifdef CONFIG_X86_32
- static int cachesize_override __cpuinitdata = -1;
- static int disable_x86_serial_nr __cpuinitdata = 1;
-@@ -227,7 +173,7 @@ void switch_to_new_gdt(void)
- {
- struct desc_ptr gdt_descr;
-
-- gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id());
-+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(smp_processor_id());
- gdt_descr.size = GDT_SIZE - 1;
- load_gdt(&gdt_descr);
- #ifdef CONFIG_X86_32
-@@ -687,6 +633,10 @@ static void __cpuinit identify_cpu(struc
- * we do "generic changes."
- */
-
-+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
-+ setup_clear_cpu_cap(X86_FEATURE_SEP);
-+#endif
-+
- /* If the model name is still unset, do table lookup. */
- if (!c->x86_model_id[0]) {
- char *p;
-@@ -854,13 +804,13 @@ static __init int setup_disablecpuid(cha
- }
- __setup("clearcpuid=", setup_disablecpuid);
-
--cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
-+cpumask_t cpu_initialized = CPU_MASK_NONE;
-
- #ifdef CONFIG_X86_64
- struct x8664_pda **_cpu_pda __read_mostly;
- EXPORT_SYMBOL(_cpu_pda);
-
--struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
-+struct desc_ptr idt_descr __read_only = { 256 * 16 - 1, (unsigned long) idt_table };
-
- char boot_cpu_stack[IRQSTACKSIZE] __page_aligned_bss;
-
-@@ -959,7 +909,7 @@ struct pt_regs * __cpuinit idle_regs(str
- void __cpuinit cpu_init(void)
- {
- int cpu = stack_smp_processor_id();
-- struct tss_struct *t = &per_cpu(init_tss, cpu);
-+ struct tss_struct *t = init_tss + cpu;
- struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu);
- unsigned long v;
- char *estacks = NULL;
-@@ -1080,7 +1030,7 @@ void __cpuinit cpu_init(void)
- {
- int cpu = smp_processor_id();
- struct task_struct *curr = current;
-- struct tss_struct *t = &per_cpu(init_tss, cpu);
-+ struct tss_struct *t = init_tss + cpu;
- struct thread_struct *thread = &curr->thread;
-
- if (cpu_test_and_set(cpu, cpu_initialized)) {
-diff -urNp linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
---- linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-21 09:37:48.000000000 -0500
-@@ -561,7 +561,7 @@ static const struct dmi_system_id sw_any
- DMI_MATCH(DMI_PRODUCT_NAME, "X6DLP"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
- #endif
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
---- linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-21 09:37:48.000000000 -0500
-@@ -225,7 +225,7 @@ static struct cpu_model models[] =
- { &cpu_ids[CPU_MP4HT_D0], NULL, 0, NULL },
- { &cpu_ids[CPU_MP4HT_E0], NULL, 0, NULL },
-
-- { NULL, }
-+ { NULL, NULL, 0, NULL}
- };
- #undef _BANIAS
- #undef BANIAS
-diff -urNp linux-2.6.28.7/arch/x86/kernel/cpu/intel.c linux-2.6.28.7/arch/x86/kernel/cpu/intel.c
---- linux-2.6.28.7/arch/x86/kernel/cpu/intel.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/cpu/intel.c 2009-02-21 09:37:48.000000000 -0500
-@@ -72,7 +72,7 @@ static void __cpuinit trap_init_f00f_bug
- * Update the IDT descriptor and reload the IDT so that
- * it uses the read-only mapped virtual address.
- */
-- idt_descr.address = fix_to_virt(FIX_F00F_IDT);
-+ idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT);
- load_idt(&idt_descr);
- }
- #endif
-diff -urNp linux-2.6.28.7/arch/x86/kernel/cpu/mcheck/mce_64.c linux-2.6.28.7/arch/x86/kernel/cpu/mcheck/mce_64.c
---- linux-2.6.28.7/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -678,6 +678,7 @@ static struct miscdevice mce_log_device
- MISC_MCELOG_MINOR,
- "mcelog",
- &mce_chrdev_ops,
-+ {NULL, NULL}, NULL, NULL
- };
-
- static unsigned long old_cr4 __initdata;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/cpu/mtrr/generic.c linux-2.6.28.7/arch/x86/kernel/cpu/mtrr/generic.c
---- linux-2.6.28.7/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-21 09:37:48.000000000 -0500
-@@ -31,11 +31,11 @@ static struct fixed_range_block fixed_ra
- { MTRRfix64K_00000_MSR, 1 }, /* one 64k MTRR */
- { MTRRfix16K_80000_MSR, 2 }, /* two 16k MTRRs */
- { MTRRfix4K_C0000_MSR, 8 }, /* eight 4k MTRRs */
-- {}
-+ { 0, 0 }
- };
-
- static unsigned long smp_changes_mask;
--static struct mtrr_state mtrr_state = {};
-+static struct mtrr_state mtrr_state;
- static int mtrr_state_set;
- u64 mtrr_tom2;
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/crash.c linux-2.6.28.7/arch/x86/kernel/crash.c
---- linux-2.6.28.7/arch/x86/kernel/crash.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/crash.c 2009-02-21 09:37:48.000000000 -0500
-@@ -59,7 +59,7 @@ static int crash_nmi_callback(struct not
- local_irq_disable();
-
- #ifdef CONFIG_X86_32
-- if (!user_mode_vm(regs)) {
-+ if (!user_mode(regs)) {
- crash_fixup_ss_esp(&fixed_regs, regs);
- regs = &fixed_regs;
- }
-diff -urNp linux-2.6.28.7/arch/x86/kernel/doublefault_32.c linux-2.6.28.7/arch/x86/kernel/doublefault_32.c
---- linux-2.6.28.7/arch/x86/kernel/doublefault_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/doublefault_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -11,7 +11,7 @@
-
- #define DOUBLEFAULT_STACKSIZE (1024)
- static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
--#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
-+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
-
- #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
-
-@@ -21,7 +21,7 @@ static void doublefault_fn(void)
- unsigned long gdt, tss;
-
- store_gdt(&gdt_desc);
-- gdt = gdt_desc.address;
-+ gdt = (unsigned long)gdt_desc.address;
-
- printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
-
-@@ -60,10 +60,10 @@ struct tss_struct doublefault_tss __cach
- /* 0x2 bit is always set */
- .flags = X86_EFLAGS_SF | 0x2,
- .sp = STACK_START,
-- .es = __USER_DS,
-+ .es = __KERNEL_DS,
- .cs = __KERNEL_CS,
- .ss = __KERNEL_DS,
-- .ds = __USER_DS,
-+ .ds = __KERNEL_DS,
- .fs = __KERNEL_PERCPU,
-
- .__cr3 = __pa_nodebug(swapper_pg_dir),
-diff -urNp linux-2.6.28.7/arch/x86/kernel/dumpstack_32.c linux-2.6.28.7/arch/x86/kernel/dumpstack_32.c
---- linux-2.6.28.7/arch/x86/kernel/dumpstack_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/dumpstack_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -238,11 +238,12 @@ void show_registers(struct pt_regs *regs
- * When in-kernel, we also print out the stack and code at the
- * time of the fault..
- */
-- if (!user_mode_vm(regs)) {
-+ if (!user_mode(regs)) {
- unsigned int code_prologue = code_bytes * 43 / 64;
- unsigned int code_len = code_bytes;
- unsigned char c;
- u8 *ip;
-+ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]);
-
- printk(KERN_EMERG "Stack:\n");
- show_stack_log_lvl(NULL, regs, ®s->sp,
-@@ -250,10 +251,10 @@ void show_registers(struct pt_regs *regs
-
- printk(KERN_EMERG "Code: ");
-
-- ip = (u8 *)regs->ip - code_prologue;
-+ ip = (u8 *)regs->ip - code_prologue + cs_base;
- if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
- /* try starting at IP */
-- ip = (u8 *)regs->ip;
-+ ip = (u8 *)regs->ip + cs_base;
- code_len = code_len - code_prologue + 1;
- }
- for (i = 0; i < code_len; i++, ip++) {
-@@ -262,7 +263,7 @@ void show_registers(struct pt_regs *regs
- printk(" Bad EIP value.");
- break;
- }
-- if (ip == (u8 *)regs->ip)
-+ if (ip == (u8 *)regs->ip + cs_base)
- printk("<%02x> ", c);
- else
- printk("%02x ", c);
-@@ -275,6 +276,7 @@ int is_valid_bugaddr(unsigned long ip)
- {
- unsigned short ud2;
-
-+ ip = ktla_ktva(ip);
- if (ip < PAGE_OFFSET)
- return 0;
- if (probe_kernel_address((unsigned short *)ip, ud2))
-@@ -410,7 +412,7 @@ die_nmi(char *str, struct pt_regs *regs,
- * If we are in kernel we are probably nested up pretty bad
- * and might aswell get out now while we still can:
- */
-- if (!user_mode_vm(regs)) {
-+ if (!user_mode(regs)) {
- current->thread.trap_no = 2;
- crash_kexec(regs);
- }
-diff -urNp linux-2.6.28.7/arch/x86/kernel/efi_32.c linux-2.6.28.7/arch/x86/kernel/efi_32.c
---- linux-2.6.28.7/arch/x86/kernel/efi_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/efi_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -38,70 +38,38 @@
- */
-
- static unsigned long efi_rt_eflags;
--static pgd_t efi_bak_pg_dir_pointer[2];
-+static pgd_t __initdata efi_bak_pg_dir_pointer[KERNEL_PGD_PTRS];
-
--void efi_call_phys_prelog(void)
-+void __init efi_call_phys_prelog(void)
- {
-- unsigned long cr4;
-- unsigned long temp;
- struct desc_ptr gdt_descr;
-
- local_irq_save(efi_rt_eflags);
-
-- /*
-- * If I don't have PAE, I should just duplicate two entries in page
-- * directory. If I have PAE, I just need to duplicate one entry in
-- * page directory.
-- */
-- cr4 = read_cr4_safe();
-
-- if (cr4 & X86_CR4_PAE) {
-- efi_bak_pg_dir_pointer[0].pgd =
-- swapper_pg_dir[pgd_index(0)].pgd;
-- swapper_pg_dir[0].pgd =
-- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd;
-- } else {
-- efi_bak_pg_dir_pointer[0].pgd =
-- swapper_pg_dir[pgd_index(0)].pgd;
-- efi_bak_pg_dir_pointer[1].pgd =
-- swapper_pg_dir[pgd_index(0x400000)].pgd;
-- swapper_pg_dir[pgd_index(0)].pgd =
-- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd;
-- temp = PAGE_OFFSET + 0x400000;
-- swapper_pg_dir[pgd_index(0x400000)].pgd =
-- swapper_pg_dir[pgd_index(temp)].pgd;
-- }
-+ clone_pgd_range(efi_bak_pg_dir_pointer, swapper_pg_dir, KERNEL_PGD_PTRS);
-+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY,
-+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY));
-
- /*
- * After the lock is released, the original page table is restored.
- */
- __flush_tlb_all();
-
-- gdt_descr.address = __pa(get_cpu_gdt_table(0));
-+ gdt_descr.address = (struct desc_struct *)__pa(get_cpu_gdt_table(0));
- gdt_descr.size = GDT_SIZE - 1;
- load_gdt(&gdt_descr);
- }
-
--void efi_call_phys_epilog(void)
-+void __init efi_call_phys_epilog(void)
- {
-- unsigned long cr4;
- struct desc_ptr gdt_descr;
-
-- gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
-+ gdt_descr.address = get_cpu_gdt_table(0);
- gdt_descr.size = GDT_SIZE - 1;
- load_gdt(&gdt_descr);
-
-- cr4 = read_cr4_safe();
--
-- if (cr4 & X86_CR4_PAE) {
-- swapper_pg_dir[pgd_index(0)].pgd =
-- efi_bak_pg_dir_pointer[0].pgd;
-- } else {
-- swapper_pg_dir[pgd_index(0)].pgd =
-- efi_bak_pg_dir_pointer[0].pgd;
-- swapper_pg_dir[pgd_index(0x400000)].pgd =
-- efi_bak_pg_dir_pointer[1].pgd;
-- }
-+ clone_pgd_range(swapper_pg_dir, efi_bak_pg_dir_pointer, KERNEL_PGD_PTRS);
-
- /*
- * After the lock is released, the original page table is restored.
-diff -urNp linux-2.6.28.7/arch/x86/kernel/efi_stub_32.S linux-2.6.28.7/arch/x86/kernel/efi_stub_32.S
---- linux-2.6.28.7/arch/x86/kernel/efi_stub_32.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/efi_stub_32.S 2009-02-21 09:37:48.000000000 -0500
-@@ -6,6 +6,7 @@
- */
-
- #include <linux/linkage.h>
-+#include <linux/init.h>
- #include <asm/page.h>
-
- /*
-@@ -20,7 +21,7 @@
- * service functions will comply with gcc calling convention, too.
- */
-
--.text
-+__INIT
- ENTRY(efi_call_phys)
- /*
- * 0. The function can only be called in Linux kernel. So CS has been
-@@ -36,9 +37,7 @@ ENTRY(efi_call_phys)
- * The mapping of lower virtual memory has been created in prelog and
- * epilog.
- */
-- movl $1f, %edx
-- subl $__PAGE_OFFSET, %edx
-- jmp *%edx
-+ jmp 1f-__PAGE_OFFSET
- 1:
-
- /*
-@@ -47,14 +46,8 @@ ENTRY(efi_call_phys)
- * parameter 2, ..., param n. To make things easy, we save the return
- * address of efi_call_phys in a global variable.
- */
-- popl %edx
-- movl %edx, saved_return_addr
-- /* get the function pointer into ECX*/
-- popl %ecx
-- movl %ecx, efi_rt_function_ptr
-- movl $2f, %edx
-- subl $__PAGE_OFFSET, %edx
-- pushl %edx
-+ popl (saved_return_addr)
-+ popl (efi_rt_function_ptr)
-
- /*
- * 3. Clear PG bit in %CR0.
-@@ -73,9 +66,8 @@ ENTRY(efi_call_phys)
- /*
- * 5. Call the physical function.
- */
-- jmp *%ecx
-+ call *(efi_rt_function_ptr-__PAGE_OFFSET)
-
--2:
- /*
- * 6. After EFI runtime service returns, control will return to
- * following instruction. We'd better readjust stack pointer first.
-@@ -88,34 +80,27 @@ ENTRY(efi_call_phys)
- movl %cr0, %edx
- orl $0x80000000, %edx
- movl %edx, %cr0
-- jmp 1f
--1:
-+
- /*
- * 8. Now restore the virtual mode from flat mode by
- * adding EIP with PAGE_OFFSET.
- */
-- movl $1f, %edx
-- jmp *%edx
-+ jmp 1f+__PAGE_OFFSET
- 1:
-
- /*
- * 9. Balance the stack. And because EAX contain the return value,
- * we'd better not clobber it.
- */
-- leal efi_rt_function_ptr, %edx
-- movl (%edx), %ecx
-- pushl %ecx
-+ pushl (efi_rt_function_ptr)
-
- /*
-- * 10. Push the saved return address onto the stack and return.
-+ * 10. Return to the saved return address.
- */
-- leal saved_return_addr, %edx
-- movl (%edx), %ecx
-- pushl %ecx
-- ret
-+ jmpl *(saved_return_addr)
- .previous
-
--.data
-+__INITDATA
- saved_return_addr:
- .long 0
- efi_rt_function_ptr:
-diff -urNp linux-2.6.28.7/arch/x86/kernel/entry_32.S linux-2.6.28.7/arch/x86/kernel/entry_32.S
---- linux-2.6.28.7/arch/x86/kernel/entry_32.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/entry_32.S 2009-02-21 09:37:48.000000000 -0500
-@@ -101,7 +101,7 @@
- #define resume_userspace_sig resume_userspace
- #endif
-
--#define SAVE_ALL \
-+#define __SAVE_ALL(_DS) \
- cld; \
- pushl %fs; \
- CFI_ADJUST_CFA_OFFSET 4;\
-@@ -133,12 +133,26 @@
- pushl %ebx; \
- CFI_ADJUST_CFA_OFFSET 4;\
- CFI_REL_OFFSET ebx, 0;\
-- movl $(__USER_DS), %edx; \
-+ movl $(_DS), %edx; \
- movl %edx, %ds; \
- movl %edx, %es; \
- movl $(__KERNEL_PERCPU), %edx; \
- movl %edx, %fs
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+#define SAVE_ALL \
-+ __SAVE_ALL(__KERNEL_DS); \
-+ GET_CR0_INTO_EDX; \
-+ movl %edx, %esi; \
-+ orl $X86_CR0_WP, %edx; \
-+ xorl %edx, %esi; \
-+ SET_CR0_FROM_EDX
-+#elif defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
-+#define SAVE_ALL __SAVE_ALL(__KERNEL_DS)
-+#else
-+#define SAVE_ALL __SAVE_ALL(__USER_DS)
-+#endif
-+
- #define RESTORE_INT_REGS \
- popl %ebx; \
- CFI_ADJUST_CFA_OFFSET -4;\
-@@ -229,6 +243,11 @@ ENTRY(ret_from_fork)
- CFI_ADJUST_CFA_OFFSET 4
- popfl
- CFI_ADJUST_CFA_OFFSET -4
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ xorl %esi, %esi
-+#endif
-+
- jmp syscall_exit
- CFI_ENDPROC
- END(ret_from_fork)
-@@ -252,7 +271,17 @@ check_userspace:
- movb PT_CS(%esp), %al
- andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax
- cmpl $USER_RPL, %eax
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ jae resume_userspace
-+
-+ GET_CR0_INTO_EDX
-+ xorl %esi, %edx
-+ SET_CR0_FROM_EDX
-+ jmp resume_kernel
-+#else
- jb resume_kernel # not returning to v8086 or userspace
-+#endif
-
- ENTRY(resume_userspace)
- LOCKDEP_SYS_EXIT
-@@ -314,10 +343,9 @@ sysenter_past_esp:
- /*CFI_REL_OFFSET cs, 0*/
- /*
- * Push current_thread_info()->sysenter_return to the stack.
-- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
-- * pushed above; +8 corresponds to copy_thread's esp0 setting.
- */
-- pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp)
-+ GET_THREAD_INFO(%ebp)
-+ pushl TI_sysenter_return(%ebp)
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET eip, 0
-
-@@ -330,9 +358,19 @@ sysenter_past_esp:
- * Load the potential sixth argument from user stack.
- * Careful about security.
- */
-+ movl PT_OLDESP(%esp),%ebp
-+
-+#ifdef CONFIG_PAX_MEMORY_UDEREF
-+ mov PT_OLDSS(%esp),%ds
-+1: movl %ds:(%ebp),%ebp
-+ push %ss
-+ pop %ds
-+#else
- cmpl $__PAGE_OFFSET-3,%ebp
- jae syscall_fault
- 1: movl (%ebp),%ebp
-+#endif
-+
- movl %ebp,PT_EBP(%esp)
- .section __ex_table,"a"
- .align 4
-@@ -356,12 +394,23 @@ sysenter_do_call:
- testw $_TIF_ALLWORK_MASK, %cx
- jne sysexit_audit
- sysenter_exit:
-+
-+#ifdef CONFIG_PAX_RANDKSTACK
-+ pushl %eax
-+ CFI_ADJUST_CFA_OFFSET 4
-+ call pax_randomize_kstack
-+ popl %eax
-+ CFI_ADJUST_CFA_OFFSET -4
-+#endif
-+
- /* if something modifies registers it must also disable sysexit */
- movl PT_EIP(%esp), %edx
- movl PT_OLDESP(%esp), %ecx
- xorl %ebp,%ebp
- TRACE_IRQS_ON
- 1: mov PT_FS(%esp), %fs
-+2: mov PT_DS(%esp), %ds
-+3: mov PT_ES(%esp), %es
- ENABLE_INTERRUPTS_SYSEXIT
-
- #ifdef CONFIG_AUDITSYSCALL
-@@ -404,11 +453,17 @@ sysexit_audit:
-
- CFI_ENDPROC
- .pushsection .fixup,"ax"
--2: movl $0,PT_FS(%esp)
-+4: movl $0,PT_FS(%esp)
-+ jmp 1b
-+5: movl $0,PT_DS(%esp)
-+ jmp 1b
-+6: movl $0,PT_ES(%esp)
- jmp 1b
- .section __ex_table,"a"
- .align 4
-- .long 1b,2b
-+ .long 1b,4b
-+ .long 2b,5b
-+ .long 3b,6b
- .popsection
- ENDPROC(ia32_sysenter_target)
-
-@@ -438,6 +493,10 @@ syscall_exit:
- testw $_TIF_ALLWORK_MASK, %cx # current->work
- jne syscall_exit_work
-
-+#ifdef CONFIG_PAX_RANDKSTACK
-+ call pax_randomize_kstack
-+#endif
-+
- restore_all:
- movl PT_EFLAGS(%esp), %eax # mix EFLAGS, SS and CS
- # Warning: PT_OLDSS(%esp) contains the wrong/random values if we
-@@ -531,25 +590,19 @@ work_resched:
-
- work_notifysig: # deal with pending signals and
- # notify-resume requests
-+ movl %esp, %eax
- #ifdef CONFIG_VM86
- testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
-- movl %esp, %eax
-- jne work_notifysig_v86 # returning to kernel-space or
-+ jz 1f # returning to kernel-space or
- # vm86-space
-- xorl %edx, %edx
-- call do_notify_resume
-- jmp resume_userspace_sig
-
-- ALIGN
--work_notifysig_v86:
- pushl %ecx # save ti_flags for do_notify_resume
- CFI_ADJUST_CFA_OFFSET 4
- call save_v86_state # %eax contains pt_regs pointer
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- movl %eax, %esp
--#else
-- movl %esp, %eax
-+1:
- #endif
- xorl %edx, %edx
- call do_notify_resume
-@@ -584,6 +637,10 @@ END(syscall_exit_work)
-
- RING0_INT_FRAME # can't unwind into user space anyway
- syscall_fault:
-+#ifdef CONFIG_PAX_MEMORY_UDEREF
-+ push %ss
-+ pop %ds
-+#endif
- GET_THREAD_INFO(%ebp)
- movl $-EFAULT,PT_EAX(%esp)
- jmp resume_userspace
-@@ -595,17 +652,24 @@ syscall_badsys:
- END(syscall_badsys)
- CFI_ENDPROC
-
--#define FIXUP_ESPFIX_STACK \
-- /* since we are on a wrong stack, we cant make it a C code :( */ \
-- PER_CPU(gdt_page, %ebx); \
-- GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); \
-- addl %esp, %eax; \
-- pushl $__KERNEL_DS; \
-- CFI_ADJUST_CFA_OFFSET 4; \
-- pushl %eax; \
-- CFI_ADJUST_CFA_OFFSET 4; \
-- lss (%esp), %esp; \
-+.macro FIXUP_ESPFIX_STACK
-+ /* since we are on a wrong stack, we cant make it a C code :( */
-+#ifdef CONFIG_SMP
-+ movl PER_CPU_VAR(cpu_number), %ebx;
-+ shll $PAGE_SHIFT_asm, %ebx;
-+ addl $cpu_gdt_table, %ebx;
-+#else
-+ movl $cpu_gdt_table, %ebx;
-+#endif
-+ GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah);
-+ addl %esp, %eax;
-+ pushl $__KERNEL_DS;
-+ CFI_ADJUST_CFA_OFFSET 4;
-+ pushl %eax;
-+ CFI_ADJUST_CFA_OFFSET 4;
-+ lss (%esp), %esp;
- CFI_ADJUST_CFA_OFFSET -8;
-+.endm
- #define UNWIND_ESPFIX_STACK \
- movl %ss, %eax; \
- /* see if on espfix stack */ \
-@@ -622,7 +686,7 @@ END(syscall_badsys)
- * Build the entry stubs and pointer table with
- * some assembler magic.
- */
--.section .rodata,"a"
-+.section .rodata,"a",@progbits
- ENTRY(interrupt)
- .text
-
-@@ -722,12 +786,21 @@ error_code:
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- /*CFI_REGISTER es, ecx*/
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ GET_CR0_INTO_EDX
-+ movl %edx, %esi
-+ orl $X86_CR0_WP, %edx
-+ xorl %edx, %esi
-+ SET_CR0_FROM_EDX
-+#endif
-+
- movl PT_FS(%esp), %edi # get the function address
- movl PT_ORIG_EAX(%esp), %edx # get the error code
- movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart
- mov %ecx, PT_FS(%esp)
- /*CFI_REL_OFFSET fs, ES*/
-- movl $(__USER_DS), %ecx
-+ movl $(__KERNEL_DS), %ecx
- movl %ecx, %ds
- movl %ecx, %es
- TRACE_IRQS_OFF
-@@ -853,6 +926,13 @@ nmi_stack_correct:
- xorl %edx,%edx # zero error code
- movl %esp,%eax # pt_regs pointer
- call do_nmi
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ GET_CR0_INTO_EDX
-+ xorl %esi, %edx
-+ SET_CR0_FROM_EDX
-+#endif
-+
- jmp restore_nocheck_notrace
- CFI_ENDPROC
-
-@@ -894,6 +974,13 @@ nmi_espfix_stack:
- FIXUP_ESPFIX_STACK # %eax == %esp
- xorl %edx,%edx # zero error code
- call do_nmi
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ GET_CR0_INTO_EDX
-+ xorl %esi, %edx
-+ SET_CR0_FROM_EDX
-+#endif
-+
- RESTORE_REGS
- lss 12+4(%esp), %esp # back to espfix stack
- CFI_ADJUST_CFA_OFFSET -24
-@@ -1206,7 +1293,6 @@ END(mcount)
- #endif /* CONFIG_DYNAMIC_FTRACE */
- #endif /* CONFIG_FUNCTION_TRACER */
-
--.section .rodata,"a"
- #include "syscall_table_32.S"
-
- syscall_table_size=(.-sys_call_table)
-diff -urNp linux-2.6.28.7/arch/x86/kernel/entry_64.S linux-2.6.28.7/arch/x86/kernel/entry_64.S
---- linux-2.6.28.7/arch/x86/kernel/entry_64.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/entry_64.S 2009-02-21 09:37:48.000000000 -0500
-@@ -911,7 +911,8 @@ END(spurious_interrupt)
- xorl %ebx,%ebx
- 1:
- .if \ist
-- movq %gs:pda_data_offset, %rbp
-+ imul $TSS_size, %gs:pda_cpunumber, %ebp
-+ lea init_tss(%rbp), %rbp
- .endif
- .if \irqtrace
- TRACE_IRQS_OFF
-@@ -920,11 +921,11 @@ END(spurious_interrupt)
- movq ORIG_RAX(%rsp),%rsi
- movq $-1,ORIG_RAX(%rsp)
- .if \ist
-- subq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp)
-+ subq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp)
- .endif
- call \sym
- .if \ist
-- addq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp)
-+ addq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp)
- .endif
- DISABLE_INTERRUPTS(CLBR_NONE)
- .if \irqtrace
-diff -urNp linux-2.6.28.7/arch/x86/kernel/ftrace.c linux-2.6.28.7/arch/x86/kernel/ftrace.c
---- linux-2.6.28.7/arch/x86/kernel/ftrace.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/ftrace.c 2009-02-21 09:37:48.000000000 -0500
-@@ -95,9 +95,9 @@ int ftrace_update_ftrace_func(ftrace_fun
- unsigned char old[MCOUNT_INSN_SIZE], *new;
- int ret;
-
-- memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE);
-+ memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE);
- new = ftrace_call_replace(ip, (unsigned long)func);
-- ret = ftrace_modify_code(ip, old, new);
-+ ret = ftrace_modify_code(ktla_ktva(ip), old, new);
-
- return ret;
- }
-diff -urNp linux-2.6.28.7/arch/x86/kernel/head32.c linux-2.6.28.7/arch/x86/kernel/head32.c
---- linux-2.6.28.7/arch/x86/kernel/head32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/head32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -12,10 +12,11 @@
- #include <asm/sections.h>
- #include <asm/e820.h>
- #include <asm/bios_ebda.h>
-+#include <asm/boot.h>
-
- void __init i386_start_kernel(void)
- {
-- reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS");
-+ reserve_early(LOAD_PHYSICAL_ADDR, __pa_symbol(&_end), "TEXT DATA BSS");
-
- #ifdef CONFIG_BLK_DEV_INITRD
- /* Reserve INITRD */
-diff -urNp linux-2.6.28.7/arch/x86/kernel/head_32.S linux-2.6.28.7/arch/x86/kernel/head_32.S
---- linux-2.6.28.7/arch/x86/kernel/head_32.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/head_32.S 2009-02-21 09:37:48.000000000 -0500
-@@ -19,6 +19,7 @@
- #include <asm/asm-offsets.h>
- #include <asm/setup.h>
- #include <asm/processor-flags.h>
-+#include <asm/msr-index.h>
-
- /* Physical address */
- #define pa(X) ((X) - __PAGE_OFFSET)
-@@ -64,17 +65,22 @@ LOW_PAGES = 1<<(32-PAGE_SHIFT_asm)
- LOW_PAGES = LOW_PAGES + 0x1000000
- #endif
-
--#if PTRS_PER_PMD > 1
--PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PMD) + PTRS_PER_PGD
--#else
--PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PGD)
--#endif
-+PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PTE)
- BOOTBITMAP_SIZE = LOW_PAGES / 8
- ALLOCATOR_SLOP = 4
-
- INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE + (PAGE_TABLE_SIZE + ALLOCATOR_SLOP)*PAGE_SIZE_asm
-
- /*
-+ * Real beginning of normal "text" segment
-+ */
-+ENTRY(stext)
-+ENTRY(_stext)
-+
-+.section .text.startup,"ax",@progbits
-+ ljmp $(__BOOT_CS),$phys_startup_32
-+
-+/*
- * 32-bit kernel entrypoint; only used by the boot CPU. On entry,
- * %esi points to the real-mode code as a 32-bit pointer.
- * CS and DS must be 4 GB flat segments, but we don't depend on
-@@ -82,6 +88,12 @@ INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE +
- * can.
- */
- .section .text.head,"ax",@progbits
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
-+.fill 4096,1,0xcc
-+#endif
-+
- ENTRY(startup_32)
- /* test KEEP_SEGMENTS flag to see if the bootloader is asking
- us to not reload segments */
-@@ -99,6 +111,56 @@ ENTRY(startup_32)
- movl %eax,%gs
- 2:
-
-+ movl $pa(cpu_gdt_table),%edi
-+ movl $__per_cpu_start,%eax
-+ movw %ax,__KERNEL_PERCPU + 2(%edi)
-+ rorl $16,%eax
-+ movb %al,__KERNEL_PERCPU + 4(%edi)
-+ movb %ah,__KERNEL_PERCPU + 7(%edi)
-+ movl $__per_cpu_end + PERCPU_MODULE_RESERVE - 1,%eax
-+ subl $__per_cpu_start,%eax
-+ movw %ax,__KERNEL_PERCPU + 0(%edi)
-+
-+#ifdef CONFIG_PAX_MEMORY_UDEREF
-+ /* check for VMware */
-+ movl $0x564d5868,%eax
-+ xorl %ebx,%ebx
-+ movl $0xa,%ecx
-+ movl $0x5658,%edx
-+ in (%dx),%eax
-+ cmpl $0x564d5868,%ebx
-+ jz 2f
-+
-+ movl $NR_CPUS,%ecx
-+ movl $pa(cpu_gdt_table),%edi
-+1:
-+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
-+ addl $PAGE_SIZE_asm,%edi
-+ loop 1b
-+2:
-+#endif
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ movl $pa(boot_gdt),%edi
-+ movl $KERNEL_TEXT_OFFSET,%eax
-+ movw %ax,__BOOT_CS + 2(%edi)
-+ rorl $16,%eax
-+ movb %al,__BOOT_CS + 4(%edi)
-+ movb %ah,__BOOT_CS + 7(%edi)
-+ rorl $16,%eax
-+
-+ movl $NR_CPUS,%ecx
-+ movl $pa(cpu_gdt_table),%edi
-+1:
-+ movw %ax,__KERNEL_CS + 2(%edi)
-+ rorl $16,%eax
-+ movb %al,__KERNEL_CS + 4(%edi)
-+ movb %ah,__KERNEL_CS + 7(%edi)
-+ rorl $16,%eax
-+ addl $PAGE_SIZE_asm,%edi
-+ loop 1b
-+#endif
-+
- /*
- * Clear BSS first so that there are no surprises...
- */
-@@ -142,9 +204,7 @@ ENTRY(startup_32)
- cmpl $num_subarch_entries, %eax
- jae bad_subarch
-
-- movl pa(subarch_entries)(,%eax,4), %eax
-- subl $__PAGE_OFFSET, %eax
-- jmp *%eax
-+ jmp *pa(subarch_entries)(,%eax,4)
-
- bad_subarch:
- WEAK(lguest_entry)
-@@ -156,9 +216,9 @@ WEAK(xen_entry)
- __INITDATA
-
- subarch_entries:
-- .long default_entry /* normal x86/PC */
-- .long lguest_entry /* lguest hypervisor */
-- .long xen_entry /* Xen hypervisor */
-+ .long pa(default_entry) /* normal x86/PC */
-+ .long pa(lguest_entry) /* lguest hypervisor */
-+ .long pa(xen_entry) /* Xen hypervisor */
- num_subarch_entries = (. - subarch_entries) / 4
- .previous
- #endif /* CONFIG_PARAVIRT */
-@@ -220,8 +280,7 @@ default_entry:
- movl %eax, pa(max_pfn_mapped)
-
- /* Do early initialization of the fixmap area */
-- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax
-- movl %eax,pa(swapper_pg_pmd+0x1000*KPMDS-8)
-+ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-8)
- #else /* Not PAE */
-
- page_pde_offset = (__PAGE_OFFSET >> 20);
-@@ -253,8 +312,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
- movl %eax, pa(max_pfn_mapped)
-
- /* Do early initialization of the fixmap area */
-- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax
-- movl %eax,pa(swapper_pg_dir+0xffc)
-+ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xffc)
- #endif
- jmp 3f
- /*
-@@ -318,13 +376,16 @@ ENTRY(startup_32_smp)
- jnc 6f
-
- /* Setup EFER (Extended Feature Enable Register) */
-- movl $0xc0000080, %ecx
-+ movl $MSR_EFER, %ecx
- rdmsr
-
- btsl $11, %eax
- /* Make changes effective */
- wrmsr
-
-+ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
-+ movl $1,pa(nx_enabled)
-+
- 6:
-
- /*
-@@ -350,9 +411,7 @@ ENTRY(startup_32_smp)
-
- #ifdef CONFIG_SMP
- cmpb $0, ready
-- jz 1f /* Initial CPU cleans BSS */
-- jmp checkCPUtype
--1:
-+ jnz checkCPUtype /* Initial CPU cleans BSS */
- #endif /* CONFIG_SMP */
-
- /*
-@@ -429,12 +488,12 @@ is386: movl $2,%ecx # set MP
- ljmp $(__KERNEL_CS),$1f
- 1: movl $(__KERNEL_DS),%eax # reload all the segment registers
- movl %eax,%ss # after changing gdt.
-- movl %eax,%fs # gets reset once there's real percpu
--
-- movl $(__USER_DS),%eax # DS/ES contains default USER segment
- movl %eax,%ds
- movl %eax,%es
-
-+ movl $(__KERNEL_PERCPU), %eax
-+ movl %eax,%fs # set this cpu's percpu
-+
- xorl %eax,%eax # Clear GS and LDT
- movl %eax,%gs
- lldt %ax
-@@ -444,12 +503,6 @@ is386: movl $2,%ecx # set MP
- #ifdef CONFIG_SMP
- movb ready, %cl
- movb $1, ready
-- cmpb $0,%cl # the first CPU calls start_kernel
-- je 1f
-- movl $(__KERNEL_PERCPU), %eax
-- movl %eax,%fs # set this cpu's percpu
-- movl (stack_start), %esp
--1:
- #endif /* CONFIG_SMP */
- jmp *(initial_code)
-
-@@ -535,15 +588,15 @@ early_page_fault:
- jmp early_fault
-
- early_fault:
-- cld
- #ifdef CONFIG_PRINTK
-+ cmpl $2,%ss:early_recursion_flag
-+ je hlt_loop
-+ incl %ss:early_recursion_flag
-+ cld
- pusha
- movl $(__KERNEL_DS),%eax
- movl %eax,%ds
- movl %eax,%es
-- cmpl $2,early_recursion_flag
-- je hlt_loop
-- incl early_recursion_flag
- movl %cr2,%eax
- pushl %eax
- pushl %edx /* trapno */
-@@ -553,8 +606,8 @@ early_fault:
- #else
- call printk
- #endif
--#endif
- call dump_stack
-+#endif
- hlt_loop:
- hlt
- jmp hlt_loop
-@@ -562,8 +615,11 @@ hlt_loop:
- /* This is the default interrupt "handler" :-) */
- ALIGN
- ignore_int:
-- cld
- #ifdef CONFIG_PRINTK
-+ cmpl $2,%ss:early_recursion_flag
-+ je hlt_loop
-+ incl %ss:early_recursion_flag
-+ cld
- pushl %eax
- pushl %ecx
- pushl %edx
-@@ -572,9 +628,6 @@ ignore_int:
- movl $(__KERNEL_DS),%eax
- movl %eax,%ds
- movl %eax,%es
-- cmpl $2,early_recursion_flag
-- je hlt_loop
-- incl early_recursion_flag
- pushl 16(%esp)
- pushl 24(%esp)
- pushl 32(%esp)
-@@ -599,36 +652,41 @@ ignore_int:
- ENTRY(initial_code)
- .long i386_start_kernel
-
--.section .text
--/*
-- * Real beginning of normal "text" segment
-- */
--ENTRY(stext)
--ENTRY(_stext)
--
- /*
- * BSS section
- */
--.section ".bss.page_aligned","wa"
-- .align PAGE_SIZE_asm
- #ifdef CONFIG_X86_PAE
-+.section .swapper_pg_pmd,"a",@progbits
- swapper_pg_pmd:
- .fill 1024*KPMDS,4,0
- #else
-+.section .swapper_pg_dir,"a",@progbits
- ENTRY(swapper_pg_dir)
- .fill 1024,4,0
- #endif
- swapper_pg_fixmap:
- .fill 1024,4,0
-+
-+.section .empty_zero_page,"a",@progbits
- ENTRY(empty_zero_page)
- .fill 4096,1,0
-+
-+/*
-+ * The IDT has to be page-aligned to simplify the Pentium
-+ * F0 0F bug workaround.. We have a special link segment
-+ * for this.
-+ */
-+.section .idt,"a",@progbits
-+ENTRY(idt_table)
-+ .fill 256,8,0
-+
- /*
- * This starts the data section.
- */
-+.data
-+
- #ifdef CONFIG_X86_PAE
--.section ".data.page_aligned","wa"
-- /* Page-aligned for the benefit of paravirt? */
-- .align PAGE_SIZE_asm
-+.section .swapper_pg_dir,"a",@progbits
- ENTRY(swapper_pg_dir)
- .long pa(swapper_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */
- # if KPMDS == 3
-@@ -651,11 +709,12 @@ ENTRY(swapper_pg_dir)
-
- .data
- ENTRY(stack_start)
-- .long init_thread_union+THREAD_SIZE
-+ .long init_thread_union+THREAD_SIZE-8
- .long __BOOT_DS
-
- ready: .byte 0
-
-+.section .rodata,"a",@progbits
- early_recursion_flag:
- .long 0
-
-@@ -691,7 +750,7 @@ fault_msg:
- .word 0 # 32 bit align gdt_desc.address
- boot_gdt_descr:
- .word __BOOT_DS+7
-- .long boot_gdt - __PAGE_OFFSET
-+ .long pa(boot_gdt)
-
- .word 0 # 32-bit align idt_desc.address
- idt_descr:
-@@ -702,7 +761,7 @@ idt_descr:
- .word 0 # 32 bit align gdt_desc.address
- ENTRY(early_gdt_descr)
- .word GDT_ENTRIES*8-1
-- .long per_cpu__gdt_page /* Overwritten for secondary CPUs */
-+ .long cpu_gdt_table /* Overwritten for secondary CPUs */
-
- /*
- * The boot_gdt must mirror the equivalent in setup.S and is
-@@ -711,5 +770,59 @@ ENTRY(early_gdt_descr)
- .align L1_CACHE_BYTES
- ENTRY(boot_gdt)
- .fill GDT_ENTRY_BOOT_CS,8,0
-- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */
-- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */
-+ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */
-+ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */
-+
-+ .align PAGE_SIZE_asm
-+ENTRY(cpu_gdt_table)
-+ .rept NR_CPUS
-+ .quad 0x0000000000000000 /* NULL descriptor */
-+ .quad 0x0000000000000000 /* 0x0b reserved */
-+ .quad 0x0000000000000000 /* 0x13 reserved */
-+ .quad 0x0000000000000000 /* 0x1b reserved */
-+ .quad 0x0000000000000000 /* 0x20 unused */
-+ .quad 0x0000000000000000 /* 0x28 unused */
-+ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */
-+ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */
-+ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */
-+ .quad 0x0000000000000000 /* 0x4b reserved */
-+ .quad 0x0000000000000000 /* 0x53 reserved */
-+ .quad 0x0000000000000000 /* 0x5b reserved */
-+
-+ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */
-+ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */
-+ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */
-+ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */
-+
-+ .quad 0x0000000000000000 /* 0x80 TSS descriptor */
-+ .quad 0x0000000000000000 /* 0x88 LDT descriptor */
-+
-+ /*
-+ * Segments used for calling PnP BIOS have byte granularity.
-+ * The code segments and data segments have fixed 64k limits,
-+ * the transfer segment sizes are set at run time.
-+ */
-+ .quad 0x00409b000000ffff /* 0x90 32-bit code */
-+ .quad 0x00009b000000ffff /* 0x98 16-bit code */
-+ .quad 0x000093000000ffff /* 0xa0 16-bit data */
-+ .quad 0x0000930000000000 /* 0xa8 16-bit data */
-+ .quad 0x0000930000000000 /* 0xb0 16-bit data */
-+
-+ /*
-+ * The APM segments have byte granularity and their bases
-+ * are set at run time. All have 64k limits.
-+ */
-+ .quad 0x00409b000000ffff /* 0xb8 APM CS code */
-+ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */
-+ .quad 0x004093000000ffff /* 0xc8 APM DS data */
-+
-+ .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */
-+ .quad 0x0040930000000000 /* 0xd8 - PERCPU */
-+ .quad 0x0000000000000000 /* 0xe0 - PCIBIOS_CS */
-+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_DS */
-+ .quad 0x0000000000000000 /* 0xf0 - unused */
-+ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
-+
-+ /* Be sure this is zeroed to avoid false validations in Xen */
-+ .fill PAGE_SIZE_asm - GDT_SIZE,1,0
-+ .endr
-diff -urNp linux-2.6.28.7/arch/x86/kernel/head64.c linux-2.6.28.7/arch/x86/kernel/head64.c
---- linux-2.6.28.7/arch/x86/kernel/head64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/head64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -93,6 +93,8 @@ void __init x86_64_start_kernel(char * r
- /* clear bss before set_intr_gate with early_idt_handler */
- clear_bss();
-
-+ x86_64_init_pda();
-+
- /* Make NULL pointers segfault */
- zap_identity_mappings();
-
-@@ -111,8 +113,6 @@ void __init x86_64_start_kernel(char * r
- if (console_loglevel == 10)
- early_printk("Kernel alive\n");
-
-- x86_64_init_pda();
--
- x86_64_start_reservations(real_mode_data);
- }
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/head_64.S linux-2.6.28.7/arch/x86/kernel/head_64.S
---- linux-2.6.28.7/arch/x86/kernel/head_64.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/head_64.S 2009-02-21 09:37:48.000000000 -0500
-@@ -38,6 +38,10 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET
- L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
- L4_START_KERNEL = pgd_index(__START_KERNEL_map)
- L3_START_KERNEL = pud_index(__START_KERNEL_map)
-+L4_VMALLOC_START = pgd_index(VMALLOC_START)
-+L3_VMALLOC_START = pud_index(VMALLOC_START)
-+L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
-+L3_VMEMMAP_START = pud_index(VMEMMAP_START)
-
- .text
- .section .text.head
-@@ -85,35 +89,22 @@ startup_64:
- */
- addq %rbp, init_level4_pgt + 0(%rip)
- addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
-+ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
-+ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
- addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
-
- addq %rbp, level3_ident_pgt + 0(%rip)
-+ addq %rbp, level3_ident_pgt + 8(%rip)
-+ addq %rbp, level3_ident_pgt + 16(%rip)
-+ addq %rbp, level3_ident_pgt + 24(%rip)
-
-- addq %rbp, level3_kernel_pgt + (510*8)(%rip)
-- addq %rbp, level3_kernel_pgt + (511*8)(%rip)
-+ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
-
-- addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
-+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
-+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip)
-
-- /* Add an Identity mapping if I am above 1G */
-- leaq _text(%rip), %rdi
-- andq $PMD_PAGE_MASK, %rdi
--
-- movq %rdi, %rax
-- shrq $PUD_SHIFT, %rax
-- andq $(PTRS_PER_PUD - 1), %rax
-- jz ident_complete
--
-- leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx
-- leaq level3_ident_pgt(%rip), %rbx
-- movq %rdx, 0(%rbx, %rax, 8)
--
-- movq %rdi, %rax
-- shrq $PMD_SHIFT, %rax
-- andq $(PTRS_PER_PMD - 1), %rax
-- leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx
-- leaq level2_spare_pgt(%rip), %rbx
-- movq %rdx, 0(%rbx, %rax, 8)
--ident_complete:
-+ addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
-+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip)
-
- /*
- * Fixup the kernel text+data virtual addresses. Note that
-@@ -187,6 +178,10 @@ ENTRY(secondary_startup_64)
- btl $20,%edi /* No Execute supported? */
- jnc 1f
- btsl $_EFER_NX, %eax
-+ leaq init_level4_pgt(%rip), %rdi
-+ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi)
-+ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi)
-+ btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi)
- 1: wrmsr /* Make changes effective */
-
- /* Setup cr0 */
-@@ -257,16 +252,16 @@ ENTRY(secondary_startup_64)
- .align 8
- ENTRY(initial_code)
- .quad x86_64_start_kernel
-- __FINITDATA
-
- ENTRY(stack_start)
- .quad init_thread_union+THREAD_SIZE-8
- .word 0
-+ __FINITDATA
-
- bad_address:
- jmp bad_address
-
-- .section ".init.text","ax"
-+ __INIT
- #ifdef CONFIG_EARLY_PRINTK
- .globl early_idt_handlers
- early_idt_handlers:
-@@ -311,18 +306,23 @@ ENTRY(early_idt_handler)
- #endif /* EARLY_PRINTK */
- 1: hlt
- jmp 1b
-+ .previous
-
- #ifdef CONFIG_EARLY_PRINTK
-+ __INITDATA
- early_recursion_flag:
- .long 0
-+ .previous
-
-+ .section .rodata,"a",@progbits
- early_idt_msg:
- .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
- early_idt_ripmsg:
- .asciz "RIP %s\n"
--#endif /* CONFIG_EARLY_PRINTK */
- .previous
-+#endif /* CONFIG_EARLY_PRINTK */
-
-+ .section .rodata,"a",@progbits
- .balign PAGE_SIZE
-
- #define NEXT_PAGE(name) \
-@@ -347,13 +347,27 @@ NEXT_PAGE(init_level4_pgt)
- .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
- .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
- .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
-+ .org init_level4_pgt + L4_VMALLOC_START*8, 0
-+ .quad level3_vmalloc_pgt - __START_KERNEL_map + _KERNPG_TABLE
-+ .org init_level4_pgt + L4_VMEMMAP_START*8, 0
-+ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
- .org init_level4_pgt + L4_START_KERNEL*8, 0
- /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
- .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
-
- NEXT_PAGE(level3_ident_pgt)
- .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
-- .fill 511,8,0
-+ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
-+ .quad level2_ident_pgt + 2*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
-+ .quad level2_ident_pgt + 3*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
-+ .fill 508,8,0
-+
-+NEXT_PAGE(level3_vmalloc_pgt)
-+ .fill 512,8,0
-+
-+NEXT_PAGE(level3_vmemmap_pgt)
-+ .fill L3_VMEMMAP_START,8,0
-+ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
-
- NEXT_PAGE(level3_kernel_pgt)
- .fill L3_START_KERNEL,8,0
-@@ -361,20 +375,27 @@ NEXT_PAGE(level3_kernel_pgt)
- .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
- .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
-
-+NEXT_PAGE(level2_vmemmap_pgt)
-+ .fill 512,8,0
-+
- NEXT_PAGE(level2_fixmap_pgt)
- .fill 506,8,0
- .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
-- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
-- .fill 5,8,0
-+ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
-+ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
-+ .fill 4,8,0
-
- NEXT_PAGE(level1_fixmap_pgt)
- .fill 512,8,0
-
--NEXT_PAGE(level2_ident_pgt)
-- /* Since I easily can, map the first 1G.
-+NEXT_PAGE(level1_vsyscall_pgt)
-+ .fill 512,8,0
-+
-+ /* Since I easily can, map the first 4G.
- * Don't set NX because code runs from these pages.
- */
-- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
-+NEXT_PAGE(level2_ident_pgt)
-+ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 4*PTRS_PER_PMD)
-
- NEXT_PAGE(level2_kernel_pgt)
- /*
-@@ -387,32 +408,48 @@ NEXT_PAGE(level2_kernel_pgt)
- * If you want to increase this then increase MODULES_VADDR
- * too.)
- */
-- PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
-- KERNEL_IMAGE_SIZE/PMD_SIZE)
--
--NEXT_PAGE(level2_spare_pgt)
-- .fill 512, 8, 0
-+ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE)
-
- #undef PMDS
- #undef NEXT_PAGE
-
-- .data
-+ .align PAGE_SIZE
-+ENTRY(cpu_gdt_table)
-+ .rept NR_CPUS
-+ .quad 0x0000000000000000 /* NULL descriptor */
-+ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */
-+ .quad 0x00af9b000000ffff /* __KERNEL_CS */
-+ .quad 0x00cf93000000ffff /* __KERNEL_DS */
-+ .quad 0x00cffb000000ffff /* __USER32_CS */
-+ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */
-+ .quad 0x00affb000000ffff /* __USER_CS */
-+ .quad 0x0 /* unused */
-+ .quad 0,0 /* TSS */
-+ .quad 0,0 /* LDT */
-+ .quad 0,0,0 /* three TLS descriptors */
-+ .quad 0x0000f40000000000 /* node/CPU stored in limit */
-+ /* asm/segment.h:GDT_ENTRIES must match this */
-+
-+ /* zero the remaining page */
-+ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
-+ .endr
-+
- .align 16
- .globl early_gdt_descr
- early_gdt_descr:
- .word GDT_ENTRIES*8-1
-- .quad per_cpu__gdt_page
-+ .quad cpu_gdt_table
-
- ENTRY(phys_base)
- /* This must match the first entry in level2_kernel_pgt */
- .quad 0x0000000000000000
-
- #include "../../x86/xen/xen-head.S"
--
-- .section .bss, "aw", @nobits
-+
-+ .section .rodata,"a",@progbits
- .align L1_CACHE_BYTES
- ENTRY(idt_table)
-- .skip 256 * 16
-+ .fill 512,8,0
-
- .section .bss.page_aligned, "aw", @nobits
- .align PAGE_SIZE
-diff -urNp linux-2.6.28.7/arch/x86/kernel/i386_ksyms_32.c linux-2.6.28.7/arch/x86/kernel/i386_ksyms_32.c
---- linux-2.6.28.7/arch/x86/kernel/i386_ksyms_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/i386_ksyms_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -10,8 +10,12 @@
- EXPORT_SYMBOL(mcount);
- #endif
-
-+EXPORT_SYMBOL_GPL(cpu_gdt_table);
-+
- /* Networking helper routines. */
- EXPORT_SYMBOL(csum_partial_copy_generic);
-+EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
-+EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
-
- EXPORT_SYMBOL(__get_user_1);
- EXPORT_SYMBOL(__get_user_2);
-@@ -26,3 +30,7 @@ EXPORT_SYMBOL(strstr);
-
- EXPORT_SYMBOL(csum_partial);
- EXPORT_SYMBOL(empty_zero_page);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+EXPORT_SYMBOL(KERNEL_TEXT_OFFSET);
-+#endif
-diff -urNp linux-2.6.28.7/arch/x86/kernel/init_task.c linux-2.6.28.7/arch/x86/kernel/init_task.c
---- linux-2.6.28.7/arch/x86/kernel/init_task.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/init_task.c 2009-02-21 09:37:48.000000000 -0500
-@@ -42,5 +42,5 @@ EXPORT_SYMBOL(init_task);
- * section. Since TSS's are completely CPU-local, we want them
- * on exact cacheline boundaries, to eliminate cacheline ping-pong.
- */
--DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
--
-+struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
-+EXPORT_SYMBOL(init_tss);
-diff -urNp linux-2.6.28.7/arch/x86/kernel/ioport.c linux-2.6.28.7/arch/x86/kernel/ioport.c
---- linux-2.6.28.7/arch/x86/kernel/ioport.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/ioport.c 2009-02-21 09:37:48.000000000 -0500
-@@ -6,6 +6,7 @@
- #include <linux/sched.h>
- #include <linux/kernel.h>
- #include <linux/capability.h>
-+#include <linux/security.h>
- #include <linux/errno.h>
- #include <linux/types.h>
- #include <linux/ioport.h>
-@@ -41,6 +42,12 @@ asmlinkage long sys_ioperm(unsigned long
-
- if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
- return -EINVAL;
-+#ifdef CONFIG_GRKERNSEC_IO
-+ if (turn_on) {
-+ gr_handle_ioperm();
-+ return -EPERM;
-+ }
-+#endif
- if (turn_on && !capable(CAP_SYS_RAWIO))
- return -EPERM;
-
-@@ -67,7 +74,7 @@ asmlinkage long sys_ioperm(unsigned long
- * because the ->io_bitmap_max value must match the bitmap
- * contents:
- */
-- tss = &per_cpu(init_tss, get_cpu());
-+ tss = init_tss + get_cpu();
-
- set_bitmap(t->io_bitmap_ptr, from, num, !turn_on);
-
-@@ -122,8 +129,13 @@ static int do_iopl(unsigned int level, s
- return -EINVAL;
- /* Trying to gain more privileges? */
- if (level > old) {
-+#ifdef CONFIG_GRKERNSEC_IO
-+ gr_handle_iopl();
-+ return -EPERM;
-+#else
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
-+#endif
- }
- regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/irq_32.c linux-2.6.28.7/arch/x86/kernel/irq_32.c
---- linux-2.6.28.7/arch/x86/kernel/irq_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/irq_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -93,7 +93,7 @@ execute_on_irq_stack(int overflow, struc
- return 0;
-
- /* build the stack frame on the IRQ stack */
-- isp = (u32 *) ((char*)irqctx + sizeof(*irqctx));
-+ isp = (u32 *) ((char*)irqctx + sizeof(*irqctx) - 8);
- irqctx->tinfo.task = curctx->tinfo.task;
- irqctx->tinfo.previous_esp = current_stack_pointer;
-
-@@ -174,7 +174,7 @@ asmlinkage void do_softirq(void)
- irqctx->tinfo.previous_esp = current_stack_pointer;
-
- /* build the stack frame on the softirq stack */
-- isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
-+ isp = (u32*) ((char*)irqctx + sizeof(*irqctx) - 8);
-
- call_on_stack(__do_softirq, isp);
- /*
-diff -urNp linux-2.6.28.7/arch/x86/kernel/kprobes.c linux-2.6.28.7/arch/x86/kernel/kprobes.c
---- linux-2.6.28.7/arch/x86/kernel/kprobes.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/kprobes.c 2009-02-21 09:37:48.000000000 -0500
-@@ -166,9 +166,24 @@ static void __kprobes set_jmp_op(void *f
- char op;
- s32 raddr;
- } __attribute__((packed)) * jop;
-- jop = (struct __arch_jmp_op *)from;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
-+ jop = (struct __arch_jmp_op *)(ktla_ktva(from));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- jop->raddr = (s32)((long)(to) - ((long)(from) + 5));
- jop->op = RELATIVEJUMP_INSTRUCTION;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-
- /*
-@@ -342,16 +357,29 @@ static void __kprobes fix_riprel(struct
-
- static void __kprobes arch_copy_kprobe(struct kprobe *p)
- {
-- memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ memcpy(p->ainsn.insn, ktla_ktva(p->addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-
- fix_riprel(p);
-
-- if (can_boost(p->addr))
-+ if (can_boost(ktla_ktva(p->addr)))
- p->ainsn.boostable = 0;
- else
- p->ainsn.boostable = -1;
-
-- p->opcode = *p->addr;
-+ p->opcode = *(ktla_ktva(p->addr));
- }
-
- int __kprobes arch_prepare_kprobe(struct kprobe *p)
-@@ -428,7 +456,7 @@ static void __kprobes prepare_singlestep
- if (p->opcode == BREAKPOINT_INSTRUCTION)
- regs->ip = (unsigned long)p->addr;
- else
-- regs->ip = (unsigned long)p->ainsn.insn;
-+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
- }
-
- void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
-@@ -449,7 +477,7 @@ static void __kprobes setup_singlestep(s
- if (p->ainsn.boostable == 1 && !p->post_handler) {
- /* Boost up -- we can execute copied instructions directly */
- reset_current_kprobe();
-- regs->ip = (unsigned long)p->ainsn.insn;
-+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
- preempt_enable_no_resched();
- return;
- }
-@@ -519,7 +547,7 @@ static int __kprobes kprobe_handler(stru
- struct kprobe_ctlblk *kcb;
-
- addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
-- if (*addr != BREAKPOINT_INSTRUCTION) {
-+ if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
- /*
- * The breakpoint instruction was removed right
- * after we hit it. Another cpu has removed
-@@ -770,7 +798,7 @@ static void __kprobes resume_execution(s
- struct pt_regs *regs, struct kprobe_ctlblk *kcb)
- {
- unsigned long *tos = stack_addr(regs);
-- unsigned long copy_ip = (unsigned long)p->ainsn.insn;
-+ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
- unsigned long orig_ip = (unsigned long)p->addr;
- kprobe_opcode_t *insn = p->ainsn.insn;
-
-@@ -953,7 +981,7 @@ int __kprobes kprobe_exceptions_notify(s
- struct die_args *args = data;
- int ret = NOTIFY_DONE;
-
-- if (args->regs && user_mode_vm(args->regs))
-+ if (args->regs && user_mode(args->regs))
- return ret;
-
- switch (val) {
-diff -urNp linux-2.6.28.7/arch/x86/kernel/ldt.c linux-2.6.28.7/arch/x86/kernel/ldt.c
---- linux-2.6.28.7/arch/x86/kernel/ldt.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/ldt.c 2009-02-21 09:37:48.000000000 -0500
-@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, i
- if (reload) {
- #ifdef CONFIG_SMP
- preempt_disable();
-- load_LDT(pc);
-+ load_LDT_nolock(pc);
- if (!cpus_equal(current->mm->cpu_vm_mask,
- cpumask_of_cpu(smp_processor_id())))
- smp_call_function(flush_ldt, current->mm, 1);
- preempt_enable();
- #else
-- load_LDT(pc);
-+ load_LDT_nolock(pc);
- #endif
- }
- if (oldsize) {
-@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t
- return err;
-
- for(i = 0; i < old->size; i++)
-- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
-+ write_ldt_entry(new->ldt, i, old->ldt + i);
- return 0;
- }
-
-@@ -115,6 +115,24 @@ int init_new_context(struct task_struct
- retval = copy_ldt(&mm->context, &old_mm->context);
- mutex_unlock(&old_mm->context.lock);
- }
-+
-+ if (tsk == current) {
-+ mm->context.vdso = ~0UL;
-+
-+#ifdef CONFIG_X86_32
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ mm->context.user_cs_base = 0UL;
-+ mm->context.user_cs_limit = ~0UL;
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
-+ cpus_clear(mm->context.cpu_user_cs_mask);
-+#endif
-+
-+#endif
-+#endif
-+
-+ }
-+
- return retval;
- }
-
-@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, u
- }
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
-+ error = -EINVAL;
-+ goto out_unlock;
-+ }
-+#endif
-+
- fill_ldt(&ldt, &ldt_info);
- if (oldmode)
- ldt.avl = 0;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/machine_kexec_32.c linux-2.6.28.7/arch/x86/kernel/machine_kexec_32.c
---- linux-2.6.28.7/arch/x86/kernel/machine_kexec_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/machine_kexec_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -34,7 +34,7 @@ static u32 kexec_pmd1[1024] PAGE_ALIGNED
- static u32 kexec_pte0[1024] PAGE_ALIGNED;
- static u32 kexec_pte1[1024] PAGE_ALIGNED;
-
--static void set_idt(void *newidt, __u16 limit)
-+static void set_idt(struct desc_struct *newidt, __u16 limit)
- {
- struct desc_ptr curidt;
-
-@@ -46,7 +46,7 @@ static void set_idt(void *newidt, __u16
- }
-
-
--static void set_gdt(void *newgdt, __u16 limit)
-+static void set_gdt(struct desc_struct *newgdt, __u16 limit)
- {
- struct desc_ptr curgdt;
-
-@@ -145,7 +145,7 @@ void machine_kexec(struct kimage *image)
- }
-
- control_page = page_address(image->control_code_page);
-- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
-+ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
-
- relocate_kernel_ptr = control_page;
- page_list[PA_CONTROL_PAGE] = __pa(control_page);
-diff -urNp linux-2.6.28.7/arch/x86/kernel/module_32.c linux-2.6.28.7/arch/x86/kernel/module_32.c
---- linux-2.6.28.7/arch/x86/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -23,6 +23,9 @@
- #include <linux/kernel.h>
- #include <linux/bug.h>
-
-+#include <asm/desc.h>
-+#include <asm/pgtable.h>
-+
- #if 0
- #define DEBUGP printk
- #else
-@@ -33,9 +36,31 @@ void *module_alloc(unsigned long size)
- {
- if (size == 0)
- return NULL;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
-+#else
- return vmalloc_exec(size);
-+#endif
-+
- }
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+void *module_alloc_exec(unsigned long size)
-+{
-+ struct vm_struct *area;
-+
-+ if (size == 0)
-+ return NULL;
-+
-+ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_VADDR, (unsigned long)&MODULES_END);
-+ if (area)
-+ return area->addr;
-+
-+ return NULL;
-+}
-+EXPORT_SYMBOL(module_alloc_exec);
-+#endif
-
- /* Free memory returned from module_alloc */
- void module_free(struct module *mod, void *module_region)
-@@ -45,6 +70,45 @@ void module_free(struct module *mod, voi
- table entries. */
- }
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+void module_free_exec(struct module *mod, void *module_region)
-+{
-+ struct vm_struct **p, *tmp;
-+
-+ if (!module_region)
-+ return;
-+
-+ if ((PAGE_SIZE-1) & (unsigned long)module_region) {
-+ printk(KERN_ERR "Trying to module_free_exec() bad address (%p)\n", module_region);
-+ WARN_ON(1);
-+ return;
-+ }
-+
-+ write_lock(&vmlist_lock);
-+ for (p = &vmlist; (tmp = *p) != NULL; p = &tmp->next)
-+ if (tmp->addr == module_region)
-+ break;
-+
-+ if (tmp) {
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+ memset(tmp->addr, 0xCC, tmp->size);
-+ pax_close_kernel(cr0);
-+
-+ *p = tmp->next;
-+ kfree(tmp);
-+ }
-+ write_unlock(&vmlist_lock);
-+
-+ if (!tmp) {
-+ printk(KERN_ERR "Trying to module_free_exec() nonexistent vm area (%p)\n",
-+ module_region);
-+ WARN_ON(1);
-+ }
-+}
-+#endif
-+
- /* We don't need anything special. */
- int module_frob_arch_sections(Elf_Ehdr *hdr,
- Elf_Shdr *sechdrs,
-@@ -63,14 +127,20 @@ int apply_relocate(Elf32_Shdr *sechdrs,
- unsigned int i;
- Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
- Elf32_Sym *sym;
-- uint32_t *location;
-+ uint32_t *plocation, location;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-
- DEBUGP("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
- /* This is where to make the change */
-- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-- + rel[i].r_offset;
-+ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
-+ location = (uint32_t)plocation;
-+ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
-+ plocation = ktla_ktva((void *)plocation);
- /* This is the symbol it is referring to. Note that all
- undefined symbols have been resolved. */
- sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
-@@ -78,12 +148,32 @@ int apply_relocate(Elf32_Shdr *sechdrs,
-
- switch (ELF32_R_TYPE(rel[i].r_info)) {
- case R_386_32:
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- /* We add the value into the location given */
-- *location += sym->st_value;
-+ *plocation += sym->st_value;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- break;
- case R_386_PC32:
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- /* Add the value, subtract its postition */
-- *location += sym->st_value - (uint32_t)location;
-+ *plocation += sym->st_value - location;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- break;
- default:
- printk(KERN_ERR "module %s: Unknown relocation: %u\n",
-diff -urNp linux-2.6.28.7/arch/x86/kernel/module_64.c linux-2.6.28.7/arch/x86/kernel/module_64.c
---- linux-2.6.28.7/arch/x86/kernel/module_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/module_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -40,7 +40,7 @@ void module_free(struct module *mod, voi
- table entries. */
- }
-
--void *module_alloc(unsigned long size)
-+static void *__module_alloc(unsigned long size, pgprot_t prot)
- {
- struct vm_struct *area;
-
-@@ -54,8 +54,31 @@ void *module_alloc(unsigned long size)
- if (!area)
- return NULL;
-
-- return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC);
-+ return __vmalloc_area(area, GFP_KERNEL | __GFP_ZERO, prot);
-+}
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+void *module_alloc(unsigned long size)
-+{
-+ return __module_alloc(size, PAGE_KERNEL);
-+}
-+
-+void module_free_exec(struct module *mod, void *module_region)
-+{
-+ module_free(mod, module_region);
-+}
-+
-+void *module_alloc_exec(unsigned long size)
-+{
-+ return __module_alloc(size, PAGE_KERNEL_RX);
- }
-+#else
-+void *module_alloc(unsigned long size)
-+{
-+ return __module_alloc(size, PAGE_KERNEL_EXEC);
-+}
-+#endif
-+
- #endif
-
- /* We don't need anything special. */
-@@ -77,7 +100,11 @@ int apply_relocate_add(Elf64_Shdr *sechd
- Elf64_Rela *rel = (void *)sechdrs[relsec].sh_addr;
- Elf64_Sym *sym;
- void *loc;
-- u64 val;
-+ u64 val;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-
- DEBUGP("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
-@@ -101,21 +128,61 @@ int apply_relocate_add(Elf64_Shdr *sechd
- case R_X86_64_NONE:
- break;
- case R_X86_64_64:
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- *(u64 *)loc = val;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- break;
- case R_X86_64_32:
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- *(u32 *)loc = val;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- if (val != *(u32 *)loc)
- goto overflow;
- break;
- case R_X86_64_32S:
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- *(s32 *)loc = val;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- if ((s64)val != *(s32 *)loc)
- goto overflow;
- break;
- case R_X86_64_PC32:
- val -= (u64)loc;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- *(u32 *)loc = val;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- #if 0
- if ((s64)val != *(s32 *)loc)
- goto overflow;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/paravirt.c linux-2.6.28.7/arch/x86/kernel/paravirt.c
---- linux-2.6.28.7/arch/x86/kernel/paravirt.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/paravirt.c 2009-02-21 09:37:48.000000000 -0500
-@@ -44,7 +44,7 @@ void _paravirt_nop(void)
- {
- }
-
--static void __init default_banner(void)
-+static void default_banner(void)
- {
- printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
- pv_info.name);
-@@ -164,7 +164,7 @@ unsigned paravirt_patch_insns(void *insn
- if (insn_len > len || start == NULL)
- insn_len = len;
- else
-- memcpy(insnbuf, start, insn_len);
-+ memcpy(insnbuf, ktla_ktva(start), insn_len);
-
- return insn_len;
- }
-@@ -268,21 +268,21 @@ enum paravirt_lazy_mode paravirt_get_laz
- return __get_cpu_var(paravirt_lazy_mode);
- }
-
--struct pv_info pv_info = {
-+struct pv_info pv_info __read_only = {
- .name = "bare hardware",
- .paravirt_enabled = 0,
- .kernel_rpl = 0,
- .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */
- };
-
--struct pv_init_ops pv_init_ops = {
-+struct pv_init_ops pv_init_ops __read_only = {
- .patch = native_patch,
- .banner = default_banner,
- .arch_setup = paravirt_nop,
- .memory_setup = machine_specific_memory_setup,
- };
-
--struct pv_time_ops pv_time_ops = {
-+struct pv_time_ops pv_time_ops __read_only = {
- .time_init = hpet_time_init,
- .get_wallclock = native_get_wallclock,
- .set_wallclock = native_set_wallclock,
-@@ -290,7 +290,7 @@ struct pv_time_ops pv_time_ops = {
- .get_tsc_khz = native_calibrate_tsc,
- };
-
--struct pv_irq_ops pv_irq_ops = {
-+struct pv_irq_ops pv_irq_ops __read_only = {
- .init_IRQ = native_init_IRQ,
- .save_fl = native_save_fl,
- .restore_fl = native_restore_fl,
-@@ -303,7 +303,7 @@ struct pv_irq_ops pv_irq_ops = {
- #endif
- };
-
--struct pv_cpu_ops pv_cpu_ops = {
-+struct pv_cpu_ops pv_cpu_ops __read_only = {
- .cpuid = native_cpuid,
- .get_debugreg = native_get_debugreg,
- .set_debugreg = native_set_debugreg,
-@@ -365,7 +365,7 @@ struct pv_cpu_ops pv_cpu_ops = {
- },
- };
-
--struct pv_apic_ops pv_apic_ops = {
-+struct pv_apic_ops pv_apic_ops __read_only = {
- #ifdef CONFIG_X86_LOCAL_APIC
- .setup_boot_clock = setup_boot_APIC_clock,
- .setup_secondary_clock = setup_secondary_APIC_clock,
-@@ -373,7 +373,7 @@ struct pv_apic_ops pv_apic_ops = {
- #endif
- };
-
--struct pv_mmu_ops pv_mmu_ops = {
-+struct pv_mmu_ops pv_mmu_ops __read_only = {
- #ifndef CONFIG_X86_64
- .pagetable_setup_start = native_pagetable_setup_start,
- .pagetable_setup_done = native_pagetable_setup_done,
-diff -urNp linux-2.6.28.7/arch/x86/kernel/paravirt-spinlocks.c linux-2.6.28.7/arch/x86/kernel/paravirt-spinlocks.c
---- linux-2.6.28.7/arch/x86/kernel/paravirt-spinlocks.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/paravirt-spinlocks.c 2009-02-21 09:37:48.000000000 -0500
-@@ -13,7 +13,7 @@ default_spin_lock_flags(raw_spinlock_t *
- __raw_spin_lock(lock);
- }
-
--struct pv_lock_ops pv_lock_ops = {
-+struct pv_lock_ops pv_lock_ops __read_only = {
- #ifdef CONFIG_SMP
- .spin_is_locked = __ticket_spin_is_locked,
- .spin_is_contended = __ticket_spin_is_contended,
-diff -urNp linux-2.6.28.7/arch/x86/kernel/process_32.c linux-2.6.28.7/arch/x86/kernel/process_32.c
---- linux-2.6.28.7/arch/x86/kernel/process_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/process_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -65,8 +65,10 @@ asmlinkage void ret_from_fork(void) __as
- DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task;
- EXPORT_PER_CPU_SYMBOL(current_task);
-
-+#ifdef CONFIG_SMP
- DEFINE_PER_CPU(int, cpu_number);
- EXPORT_PER_CPU_SYMBOL(cpu_number);
-+#endif
-
- /*
- * Return saved PC of a blocked thread.
-@@ -74,6 +76,7 @@ EXPORT_PER_CPU_SYMBOL(cpu_number);
- unsigned long thread_saved_pc(struct task_struct *tsk)
- {
- return ((unsigned long *)tsk->thread.sp)[3];
-+//XXX return tsk->thread.eip;
- }
-
- #ifndef CONFIG_SMP
-@@ -131,7 +134,7 @@ void __show_regs(struct pt_regs *regs, i
- unsigned short ss, gs;
- const char *board;
-
-- if (user_mode_vm(regs)) {
-+ if (user_mode(regs)) {
- sp = regs->sp;
- ss = regs->ss & 0xffff;
- savesegment(gs, gs);
-@@ -212,8 +215,8 @@ int kernel_thread(int (*fn)(void *), voi
- regs.bx = (unsigned long) fn;
- regs.dx = (unsigned long) arg;
-
-- regs.ds = __USER_DS;
-- regs.es = __USER_DS;
-+ regs.ds = __KERNEL_DS;
-+ regs.es = __KERNEL_DS;
- regs.fs = __KERNEL_PERCPU;
- regs.orig_ax = -1;
- regs.ip = (unsigned long) kernel_thread_helper;
-@@ -235,7 +238,7 @@ void exit_thread(void)
- struct task_struct *tsk = current;
- struct thread_struct *t = &tsk->thread;
- int cpu = get_cpu();
-- struct tss_struct *tss = &per_cpu(init_tss, cpu);
-+ struct tss_struct *tss = init_tss + cpu;
-
- kfree(t->io_bitmap_ptr);
- t->io_bitmap_ptr = NULL;
-@@ -264,6 +267,7 @@ void flush_thread(void)
- {
- struct task_struct *tsk = current;
-
-+ loadsegment(gs, 0);
- tsk->thread.debugreg0 = 0;
- tsk->thread.debugreg1 = 0;
- tsk->thread.debugreg2 = 0;
-@@ -303,7 +307,7 @@ int copy_thread(int nr, unsigned long cl
- struct task_struct *tsk;
- int err;
-
-- childregs = task_pt_regs(p);
-+ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
- *childregs = *regs;
- childregs->ax = 0;
- childregs->sp = sp;
-@@ -332,6 +336,7 @@ int copy_thread(int nr, unsigned long cl
- * Set a new TLS for the child thread?
- */
- if (clone_flags & CLONE_SETTLS)
-+//XXX needs set_fs()?
- err = do_set_thread_area(p, -1,
- (struct user_desc __user *)childregs->si, 0);
-
-@@ -553,7 +558,7 @@ struct task_struct * __switch_to(struct
- struct thread_struct *prev = &prev_p->thread,
- *next = &next_p->thread;
- int cpu = smp_processor_id();
-- struct tss_struct *tss = &per_cpu(init_tss, cpu);
-+ struct tss_struct *tss = init_tss + cpu;
-
- /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
-
-@@ -581,6 +586,11 @@ struct task_struct * __switch_to(struct
- */
- savesegment(gs, prev->gs);
-
-+#ifdef CONFIG_PAX_MEMORY_UDEREF
-+ if (!segment_eq(task_thread_info(prev_p)->addr_limit, task_thread_info(next_p)->addr_limit))
-+ __set_fs(task_thread_info(next_p)->addr_limit, cpu);
-+#endif
-+
- /*
- * Load the per-thread Thread-Local Storage descriptor.
- */
-@@ -719,15 +729,27 @@ unsigned long get_wchan(struct task_stru
- return 0;
- }
-
--unsigned long arch_align_stack(unsigned long sp)
-+#ifdef CONFIG_PAX_RANDKSTACK
-+asmlinkage void pax_randomize_kstack(void)
- {
-- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-- sp -= get_random_int() % 8192;
-- return sp & ~0xf;
--}
-+ struct thread_struct *thread = ¤t->thread;
-+ unsigned long time;
-
--unsigned long arch_randomize_brk(struct mm_struct *mm)
--{
-- unsigned long range_end = mm->brk + 0x02000000;
-- return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
-+ if (!randomize_va_space)
-+ return;
-+
-+ rdtscl(time);
-+
-+ /* P4 seems to return a 0 LSB, ignore it */
-+#ifdef CONFIG_MPENTIUM4
-+ time &= 0x1EUL;
-+ time <<= 2;
-+#else
-+ time &= 0xFUL;
-+ time <<= 3;
-+#endif
-+
-+ thread->sp0 ^= time;
-+ load_sp0(init_tss + smp_processor_id(), thread);
- }
-+#endif
-diff -urNp linux-2.6.28.7/arch/x86/kernel/process_64.c linux-2.6.28.7/arch/x86/kernel/process_64.c
---- linux-2.6.28.7/arch/x86/kernel/process_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/process_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -109,6 +109,8 @@ static inline void play_dead(void)
- void cpu_idle(void)
- {
- current_thread_info()->status |= TS_POLLING;
-+ current->stack_canary = pax_get_random_long();
-+ write_pda(stack_canary, current->stack_canary);
- /* endless idle loop with no priority at all */
- while (1) {
- tick_nohz_stop_sched_tick(1);
-@@ -223,7 +225,7 @@ void exit_thread(void)
- struct thread_struct *t = &me->thread;
-
- if (me->thread.io_bitmap_ptr) {
-- struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
-+ struct tss_struct *tss = init_tss + get_cpu();
-
- kfree(t->io_bitmap_ptr);
- t->io_bitmap_ptr = NULL;
-@@ -558,7 +560,7 @@ __switch_to(struct task_struct *prev_p,
- struct thread_struct *prev = &prev_p->thread;
- struct thread_struct *next = &next_p->thread;
- int cpu = smp_processor_id();
-- struct tss_struct *tss = &per_cpu(init_tss, cpu);
-+ struct tss_struct *tss = init_tss + cpu;
- unsigned fsindex, gsindex;
-
- /* we're going to use this soon, after a few expensive things */
-@@ -647,7 +649,6 @@ __switch_to(struct task_struct *prev_p,
- (unsigned long)task_stack_page(next_p) +
- THREAD_SIZE - PDA_STACKOFFSET);
- #ifdef CONFIG_CC_STACKPROTECTOR
-- write_pda(stack_canary, next_p->stack_canary);
- /*
- * Build time only check to make sure the stack_canary is at
- * offset 40 in the pda; this is a gcc ABI requirement
-@@ -746,12 +747,11 @@ unsigned long get_wchan(struct task_stru
- if (!p || p == current || p->state == TASK_RUNNING)
- return 0;
- stack = (unsigned long)task_stack_page(p);
-- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
-+ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-8-sizeof(u64))
- return 0;
- fp = *(u64 *)(p->thread.sp);
- do {
-- if (fp < (unsigned long)stack ||
-- fp >= (unsigned long)stack+THREAD_SIZE)
-+ if (fp < stack || fp > stack+THREAD_SIZE-8-sizeof(u64))
- return 0;
- ip = *(u64 *)(fp+8);
- if (!in_sched_functions(ip))
-@@ -860,16 +860,3 @@ long sys_arch_prctl(int code, unsigned l
- {
- return do_arch_prctl(current, code, addr);
- }
--
--unsigned long arch_align_stack(unsigned long sp)
--{
-- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
-- sp -= get_random_int() % 8192;
-- return sp & ~0xf;
--}
--
--unsigned long arch_randomize_brk(struct mm_struct *mm)
--{
-- unsigned long range_end = mm->brk + 0x02000000;
-- return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
--}
-diff -urNp linux-2.6.28.7/arch/x86/kernel/ptrace.c linux-2.6.28.7/arch/x86/kernel/ptrace.c
---- linux-2.6.28.7/arch/x86/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/ptrace.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1502,7 +1502,7 @@ void send_sigtrap(struct task_struct *ts
- info.si_code = si_code;
-
- /* User-mode ip? */
-- info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
-+ info.si_addr = user_mode(regs) ? (void __user *) regs->ip : NULL;
-
- /* Send us the fake SIGTRAP */
- force_sig_info(SIGTRAP, &info, tsk);
-diff -urNp linux-2.6.28.7/arch/x86/kernel/reboot.c linux-2.6.28.7/arch/x86/kernel/reboot.c
---- linux-2.6.28.7/arch/x86/kernel/reboot.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/reboot.c 2009-02-21 09:37:48.000000000 -0500
-@@ -28,7 +28,7 @@ void (*pm_power_off)(void);
- EXPORT_SYMBOL(pm_power_off);
-
- static const struct desc_ptr no_idt = {};
--static int reboot_mode;
-+static unsigned short reboot_mode;
- enum reboot_type reboot_type = BOOT_KBD;
- int reboot_force;
-
-@@ -202,7 +202,7 @@ static struct dmi_system_id __initdata r
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq"),
- },
- },
-- { }
-+ { NULL, NULL, {{0, {0}}}, NULL}
- };
-
- static int __init reboot_init(void)
-@@ -218,12 +218,12 @@ core_initcall(reboot_init);
- controller to pulse the CPU reset line, which is more thorough, but
- doesn't work with at least one type of 486 motherboard. It is easy
- to stop this code working; hence the copious comments. */
--static const unsigned long long
--real_mode_gdt_entries [3] =
-+static struct desc_struct
-+real_mode_gdt_entries [3] __read_only =
- {
-- 0x0000000000000000ULL, /* Null descriptor */
-- 0x00009b000000ffffULL, /* 16-bit real-mode 64k code at 0x00000000 */
-- 0x000093000100ffffULL /* 16-bit real-mode 64k data at 0x00000100 */
-+ {{{0x00000000, 0x00000000}}}, /* Null descriptor */
-+ {{{0x0000ffff, 0x00009b00}}}, /* 16-bit real-mode 64k code at 0x00000000 */
-+ {{{0x0100ffff, 0x00009300}}} /* 16-bit real-mode 64k data at 0x00000100 */
- };
-
- static const struct desc_ptr
-@@ -272,7 +272,7 @@ static const unsigned char jump_to_bios
- * specified by the code and length parameters.
- * We assume that length will aways be less that 100!
- */
--void machine_real_restart(const unsigned char *code, int length)
-+void machine_real_restart(const unsigned char *code, unsigned int length)
- {
- local_irq_disable();
-
-@@ -292,8 +292,8 @@ void machine_real_restart(const unsigned
- /* Remap the kernel at virtual address zero, as well as offset zero
- from the kernel segment. This assumes the kernel segment starts at
- virtual address PAGE_OFFSET. */
-- memcpy(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY,
-- sizeof(swapper_pg_dir [0]) * KERNEL_PGD_PTRS);
-+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY,
-+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY));
-
- /*
- * Use `swapper_pg_dir' as our page directory.
-@@ -305,16 +305,15 @@ void machine_real_restart(const unsigned
- boot)". This seems like a fairly standard thing that gets set by
- REBOOT.COM programs, and the previous reset routine did this
- too. */
-- *((unsigned short *)0x472) = reboot_mode;
-+ *(unsigned short *)(__va(0x472)) = reboot_mode;
-
- /* For the switch to real mode, copy some code to low memory. It has
- to be in the first 64k because it is running in 16-bit mode, and it
- has to have the same physical and virtual address, because it turns
- off paging. Copy it near the end of the first page, out of the way
- of BIOS variables. */
-- memcpy((void *)(0x1000 - sizeof(real_mode_switch) - 100),
-- real_mode_switch, sizeof (real_mode_switch));
-- memcpy((void *)(0x1000 - 100), code, length);
-+ memcpy(__va(0x1000 - sizeof (real_mode_switch) - 100), real_mode_switch, sizeof (real_mode_switch));
-+ memcpy(__va(0x1000 - 100), code, length);
-
- /* Set up the IDT for real mode. */
- load_idt(&real_mode_idt);
-diff -urNp linux-2.6.28.7/arch/x86/kernel/setup.c linux-2.6.28.7/arch/x86/kernel/setup.c
---- linux-2.6.28.7/arch/x86/kernel/setup.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/setup.c 2009-02-21 09:37:48.000000000 -0500
-@@ -738,6 +738,7 @@ void start_periodic_check_for_corruption
- }
- #endif
-
-+#ifdef CONFIG_X86_RESERVE_LOW_64K
- static int __init dmi_low_memory_corruption(const struct dmi_system_id *d)
- {
- printk(KERN_NOTICE
-@@ -749,6 +750,7 @@ static int __init dmi_low_memory_corrupt
-
- return 0;
- }
-+#endif
-
- /* List of systems that have known low memory corruption BIOS problems */
- static struct dmi_system_id __initdata bad_bios_dmi_table[] = {
-@@ -845,8 +847,8 @@ void __init setup_arch(char **cmdline_p)
-
- if (!boot_params.hdr.root_flags)
- root_mountflags &= ~MS_RDONLY;
-- init_mm.start_code = (unsigned long) _text;
-- init_mm.end_code = (unsigned long) _etext;
-+ init_mm.start_code = ktla_ktva((unsigned long) _text);
-+ init_mm.end_code = ktla_ktva((unsigned long) _etext);
- init_mm.end_data = (unsigned long) _edata;
- #ifdef CONFIG_X86_32
- init_mm.brk = init_pg_tables_end + PAGE_OFFSET;
-@@ -854,9 +856,9 @@ void __init setup_arch(char **cmdline_p)
- init_mm.brk = (unsigned long) &_end;
- #endif
-
-- code_resource.start = virt_to_phys(_text);
-- code_resource.end = virt_to_phys(_etext)-1;
-- data_resource.start = virt_to_phys(_etext);
-+ code_resource.start = virt_to_phys(ktla_ktva(_text));
-+ code_resource.end = virt_to_phys(ktla_ktva(_etext))-1;
-+ data_resource.start = virt_to_phys(_data);
- data_resource.end = virt_to_phys(_edata)-1;
- bss_resource.start = virt_to_phys(&__bss_start);
- bss_resource.end = virt_to_phys(&__bss_stop)-1;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/setup_percpu.c linux-2.6.28.7/arch/x86/kernel/setup_percpu.c
---- linux-2.6.28.7/arch/x86/kernel/setup_percpu.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/setup_percpu.c 2009-02-21 09:37:48.000000000 -0500
-@@ -179,7 +179,11 @@ void __init setup_per_cpu_areas(void)
- cpu, node, __pa(ptr));
- }
- #endif
-+#ifdef CONFIG_X86_32
-+ __per_cpu_offset[cpu] = ptr - __per_cpu_start;
-+#else
- per_cpu_offset(cpu) = ptr - __per_cpu_start;
-+#endif
- memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
- }
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/signal_32.c linux-2.6.28.7/arch/x86/kernel/signal_32.c
---- linux-2.6.28.7/arch/x86/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -367,9 +367,9 @@ __setup_frame(int sig, struct k_sigactio
- }
-
- if (current->mm->context.vdso)
-- restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
-+ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
- else
-- restorer = &frame->retcode;
-+ restorer = (void __user *)&frame->retcode;
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ka->sa.sa_restorer;
-
-@@ -442,7 +442,7 @@ static int __setup_rt_frame(int sig, str
- return -EFAULT;
-
- /* Set up to return from userspace. */
-- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
-+ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ka->sa.sa_restorer;
- err |= __put_user(restorer, &frame->pretcode);
-@@ -612,7 +612,7 @@ static void do_signal(struct pt_regs *re
- * X86_32: vm86 regs switched out by assembly code before reaching
- * here, so testing against kernel CS suffices.
- */
-- if (!user_mode(regs))
-+ if (!user_mode_novm(regs))
- return;
-
- if (current_thread_info()->status & TS_RESTORE_SIGMASK)
-diff -urNp linux-2.6.28.7/arch/x86/kernel/signal_64.c linux-2.6.28.7/arch/x86/kernel/signal_64.c
---- linux-2.6.28.7/arch/x86/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -239,8 +239,8 @@ static int __setup_rt_frame(int sig, str
- err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], me);
- err |= __put_user(fp, &frame->uc.uc_mcontext.fpstate);
- if (sizeof(*set) == 16) {
-- __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]);
-- __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]);
-+ err |= __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]);
-+ err |= __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]);
- } else
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/smpboot.c linux-2.6.28.7/arch/x86/kernel/smpboot.c
---- linux-2.6.28.7/arch/x86/kernel/smpboot.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/smpboot.c 2009-02-21 09:37:48.000000000 -0500
-@@ -814,6 +814,11 @@ static int __cpuinit do_boot_cpu(int api
- .cpu = cpu,
- .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
- };
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- INIT_WORK(&c_idle.work, do_fork_idle);
-
- #ifdef CONFIG_X86_64
-@@ -864,7 +869,17 @@ do_rest:
- cpu_pda(cpu)->pcurrent = c_idle.idle;
- clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
- #endif
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- initial_code = (unsigned long)start_secondary;
- stack_start.sp = (void *) c_idle.idle->thread.sp;
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/smpcommon.c linux-2.6.28.7/arch/x86/kernel/smpcommon.c
---- linux-2.6.28.7/arch/x86/kernel/smpcommon.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/smpcommon.c 2009-02-21 09:37:48.000000000 -0500
-@@ -3,9 +3,10 @@
- */
- #include <linux/module.h>
- #include <asm/smp.h>
-+#include <asm/sections.h>
-
- #ifdef CONFIG_X86_32
--DEFINE_PER_CPU(unsigned long, this_cpu_off);
-+DEFINE_PER_CPU(unsigned long, this_cpu_off) = (unsigned long)__per_cpu_start;
- EXPORT_PER_CPU_SYMBOL(this_cpu_off);
-
- /*
-@@ -15,16 +16,19 @@ EXPORT_PER_CPU_SYMBOL(this_cpu_off);
- */
- __cpuinit void init_gdt(int cpu)
- {
-- struct desc_struct gdt;
-+ struct desc_struct d, *gdt = get_cpu_gdt_table(cpu);
-+ unsigned long base, limit;
-
-- pack_descriptor(&gdt, __per_cpu_offset[cpu], 0xFFFFF,
-- 0x2 | DESCTYPE_S, 0x8);
-- gdt.s = 1;
-+ base = per_cpu_offset(cpu);
-+ limit = PERCPU_ENOUGH_ROOM - 1;
-+ if (limit < 64*1024)
-+ pack_descriptor(&d, base, limit, 0x80 | DESCTYPE_S | 0x3, 0x4);
-+ else
-+ pack_descriptor(&d, base, limit >> PAGE_SHIFT, 0x80 | DESCTYPE_S | 0x3, 0xC);
-
-- write_gdt_entry(get_cpu_gdt_table(cpu),
-- GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
-+ write_gdt_entry(gdt, GDT_ENTRY_PERCPU, &d, DESCTYPE_S);
-
-- per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
-+ per_cpu(this_cpu_off, cpu) = base;
- per_cpu(cpu_number, cpu) = cpu;
- }
- #endif
-diff -urNp linux-2.6.28.7/arch/x86/kernel/step.c linux-2.6.28.7/arch/x86/kernel/step.c
---- linux-2.6.28.7/arch/x86/kernel/step.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/step.c 2009-02-21 09:37:48.000000000 -0500
-@@ -23,22 +23,20 @@ unsigned long convert_ip_to_linear(struc
- * and APM bios ones we just ignore here.
- */
- if ((seg & SEGMENT_TI_MASK) == SEGMENT_LDT) {
-- u32 *desc;
-+ struct desc_struct *desc;
- unsigned long base;
-
-- seg &= ~7UL;
-+ seg >>= 3;
-
- mutex_lock(&child->mm->context.lock);
-- if (unlikely((seg >> 3) >= child->mm->context.size))
-- addr = -1L; /* bogus selector, access would fault */
-+ if (unlikely(seg >= child->mm->context.size))
-+ addr = -EINVAL;
- else {
-- desc = child->mm->context.ldt + seg;
-- base = ((desc[0] >> 16) |
-- ((desc[1] & 0xff) << 16) |
-- (desc[1] & 0xff000000));
-+ desc = &child->mm->context.ldt[seg];
-+ base = (desc->a >> 16) | ((desc->b & 0xff) << 16) | (desc->b & 0xff000000);
-
- /* 16-bit code segment? */
-- if (!((desc[1] >> 22) & 1))
-+ if (!((desc->b >> 22) & 1))
- addr &= 0xffff;
- addr += base;
- }
-@@ -54,6 +52,9 @@ static int is_setting_trap_flag(struct t
- unsigned char opcode[15];
- unsigned long addr = convert_ip_to_linear(child, regs);
-
-+ if (addr == -EINVAL)
-+ return 0;
-+
- copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
- for (i = 0; i < copied; i++) {
- switch (opcode[i]) {
-@@ -75,7 +76,7 @@ static int is_setting_trap_flag(struct t
-
- #ifdef CONFIG_X86_64
- case 0x40 ... 0x4f:
-- if (regs->cs != __USER_CS)
-+ if ((regs->cs & 0xffff) != __USER_CS)
- /* 32-bit mode: register increment */
- return 0;
- /* 64-bit mode: REX prefix */
-diff -urNp linux-2.6.28.7/arch/x86/kernel/syscall_table_32.S linux-2.6.28.7/arch/x86/kernel/syscall_table_32.S
---- linux-2.6.28.7/arch/x86/kernel/syscall_table_32.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/syscall_table_32.S 2009-02-21 09:37:48.000000000 -0500
-@@ -1,3 +1,4 @@
-+.section .rodata,"a",@progbits
- ENTRY(sys_call_table)
- .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */
- .long sys_exit
-diff -urNp linux-2.6.28.7/arch/x86/kernel/sys_i386_32.c linux-2.6.28.7/arch/x86/kernel/sys_i386_32.c
---- linux-2.6.28.7/arch/x86/kernel/sys_i386_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/sys_i386_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -24,6 +24,21 @@
-
- #include <asm/syscalls.h>
-
-+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
-+{
-+ unsigned long pax_task_size = TASK_SIZE;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-+
-+ if (len > pax_task_size || addr > pax_task_size - len)
-+ return -EINVAL;
-+
-+ return 0;
-+}
-+
- asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-@@ -83,6 +98,205 @@ out:
- return err;
- }
-
-+unsigned long
-+arch_get_unmapped_area(struct file *filp, unsigned long addr,
-+ unsigned long len, unsigned long pgoff, unsigned long flags)
-+{
-+ struct mm_struct *mm = current->mm;
-+ struct vm_area_struct *vma;
-+ unsigned long start_addr, pax_task_size = TASK_SIZE;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-+
-+ if (len > pax_task_size)
-+ return -ENOMEM;
-+
-+ if (flags & MAP_FIXED)
-+ return addr;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
-+ if (addr) {
-+ addr = PAGE_ALIGN(addr);
-+ vma = find_vma(mm, addr);
-+ if (pax_task_size - len >= addr &&
-+ (!vma || addr + len <= vma->vm_start))
-+ return addr;
-+ }
-+ if (len > mm->cached_hole_size) {
-+ start_addr = addr = mm->free_area_cache;
-+ } else {
-+ start_addr = addr = mm->mmap_base;
-+ mm->cached_hole_size = 0;
-+ }
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) {
-+ start_addr = 0x00110000UL;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ start_addr += mm->delta_mmap & 0x03FFF000UL;
-+#endif
-+
-+ if (mm->start_brk <= start_addr && start_addr < mm->mmap_base)
-+ start_addr = addr = mm->mmap_base;
-+ else
-+ addr = start_addr;
-+ }
-+#endif
-+
-+full_search:
-+ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
-+ /* At this point: (!vma || addr < vma->vm_end). */
-+ if (pax_task_size - len < addr) {
-+ /*
-+ * Start a new search - just in case we missed
-+ * some holes.
-+ */
-+ if (start_addr != mm->mmap_base) {
-+ start_addr = addr = mm->mmap_base;
-+ mm->cached_hole_size = 0;
-+ goto full_search;
-+ }
-+ return -ENOMEM;
-+ }
-+ if (!vma || addr + len <= vma->vm_start) {
-+ /*
-+ * Remember the place where we stopped the search:
-+ */
-+ mm->free_area_cache = addr + len;
-+ return addr;
-+ }
-+ if (addr + mm->cached_hole_size < vma->vm_start)
-+ mm->cached_hole_size = vma->vm_start - addr;
-+ addr = vma->vm_end;
-+ if (mm->start_brk <= addr && addr < mm->mmap_base) {
-+ start_addr = addr = mm->mmap_base;
-+ mm->cached_hole_size = 0;
-+ goto full_search;
-+ }
-+ }
-+}
-+
-+unsigned long
-+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
-+ const unsigned long len, const unsigned long pgoff,
-+ const unsigned long flags)
-+{
-+ struct vm_area_struct *vma;
-+ struct mm_struct *mm = current->mm;
-+ unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-+
-+ /* requested length too big for entire address space */
-+ if (len > pax_task_size)
-+ return -ENOMEM;
-+
-+ if (flags & MAP_FIXED)
-+ return addr;
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
-+ goto bottomup;
-+#endif
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
-+ /* requesting a specific address */
-+ if (addr) {
-+ addr = PAGE_ALIGN(addr);
-+ vma = find_vma(mm, addr);
-+ if (pax_task_size - len >= addr &&
-+ (!vma || addr + len <= vma->vm_start))
-+ return addr;
-+ }
-+
-+ /* check if free_area_cache is useful for us */
-+ if (len <= mm->cached_hole_size) {
-+ mm->cached_hole_size = 0;
-+ mm->free_area_cache = mm->mmap_base;
-+ }
-+
-+ /* either no address requested or can't fit in requested address hole */
-+ addr = mm->free_area_cache;
-+
-+ /* make sure it can fit in the remaining address space */
-+ if (addr > len) {
-+ vma = find_vma(mm, addr-len);
-+ if (!vma || addr <= vma->vm_start)
-+ /* remember the address as a hint for next time */
-+ return (mm->free_area_cache = addr-len);
-+ }
-+
-+ if (mm->mmap_base < len)
-+ goto bottomup;
-+
-+ addr = mm->mmap_base-len;
-+
-+ do {
-+ /*
-+ * Lookup failure means no vma is above this address,
-+ * else if new region fits below vma->vm_start,
-+ * return with success:
-+ */
-+ vma = find_vma(mm, addr);
-+ if (!vma || addr+len <= vma->vm_start)
-+ /* remember the address as a hint for next time */
-+ return (mm->free_area_cache = addr);
-+
-+ /* remember the largest hole we saw so far */
-+ if (addr + mm->cached_hole_size < vma->vm_start)
-+ mm->cached_hole_size = vma->vm_start - addr;
-+
-+ /* try just below the current vma->vm_start */
-+ addr = vma->vm_start-len;
-+ } while (len < vma->vm_start);
-+
-+bottomup:
-+ /*
-+ * A failed mmap() very likely causes application failure,
-+ * so fall back to the bottom-up function here. This scenario
-+ * can happen with large stack limits and large mmap()
-+ * allocations.
-+ */
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE;
-+ else
-+#endif
-+
-+ mm->mmap_base = TASK_UNMAPPED_BASE;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
-+ mm->free_area_cache = mm->mmap_base;
-+ mm->cached_hole_size = ~0UL;
-+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
-+ /*
-+ * Restore the topdown base:
-+ */
-+ mm->mmap_base = base;
-+ mm->free_area_cache = base;
-+ mm->cached_hole_size = ~0UL;
-+
-+ return addr;
-+}
-
- struct sel_arg_struct {
- unsigned long n;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/sys_x86_64.c linux-2.6.28.7/arch/x86/kernel/sys_x86_64.c
---- linux-2.6.28.7/arch/x86/kernel/sys_x86_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/sys_x86_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -47,8 +47,8 @@ out:
- return error;
- }
-
--static void find_start_end(unsigned long flags, unsigned long *begin,
-- unsigned long *end)
-+static void find_start_end(struct mm_struct *mm, unsigned long flags,
-+ unsigned long *begin, unsigned long *end)
- {
- if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) {
- unsigned long new_begin;
-@@ -67,7 +67,7 @@ static void find_start_end(unsigned long
- *begin = new_begin;
- }
- } else {
-- *begin = TASK_UNMAPPED_BASE;
-+ *begin = mm->mmap_base;
- *end = TASK_SIZE;
- }
- }
-@@ -84,11 +84,15 @@ arch_get_unmapped_area(struct file *filp
- if (flags & MAP_FIXED)
- return addr;
-
-- find_start_end(flags, &begin, &end);
-+ find_start_end(mm, flags, &begin, &end);
-
- if (len > end)
- return -ENOMEM;
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- if (addr) {
- addr = PAGE_ALIGN(addr);
- vma = find_vma(mm, addr);
-@@ -143,7 +147,7 @@ arch_get_unmapped_area_topdown(struct fi
- {
- struct vm_area_struct *vma;
- struct mm_struct *mm = current->mm;
-- unsigned long addr = addr0;
-+ unsigned long base = mm->mmap_base, addr = addr0;
-
- /* requested length too big for entire address space */
- if (len > TASK_SIZE)
-@@ -156,6 +160,10 @@ arch_get_unmapped_area_topdown(struct fi
- if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT))
- goto bottomup;
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- /* requesting a specific address */
- if (addr) {
- addr = PAGE_ALIGN(addr);
-@@ -213,13 +221,21 @@ bottomup:
- * can happen with large stack limits and large mmap()
- * allocations.
- */
-+ mm->mmap_base = TASK_UNMAPPED_BASE;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
-+ mm->free_area_cache = mm->mmap_base;
- mm->cached_hole_size = ~0UL;
-- mm->free_area_cache = TASK_UNMAPPED_BASE;
- addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
- /*
- * Restore the topdown base:
- */
-- mm->free_area_cache = mm->mmap_base;
-+ mm->mmap_base = base;
-+ mm->free_area_cache = base;
- mm->cached_hole_size = ~0UL;
-
- return addr;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/time_32.c linux-2.6.28.7/arch/x86/kernel/time_32.c
---- linux-2.6.28.7/arch/x86/kernel/time_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/time_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -47,22 +47,32 @@ unsigned long profile_pc(struct pt_regs
- unsigned long pc = instruction_pointer(regs);
-
- #ifdef CONFIG_SMP
-- if (!user_mode_vm(regs) && in_lock_functions(pc)) {
-+ if (!user_mode(regs) && in_lock_functions(pc)) {
- #ifdef CONFIG_FRAME_POINTER
-- return *(unsigned long *)(regs->bp + sizeof(long));
-+ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
- #else
- unsigned long *sp = (unsigned long *)®s->sp;
-
- /* Return address is either directly at stack pointer
- or above a saved flags. Eflags has bits 22-31 zero,
- kernel addresses don't. */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ return ktla_ktva(sp[0]);
-+#else
- if (sp[0] >> 22)
- return sp[0];
- if (sp[1] >> 22)
- return sp[1];
- #endif
-+
-+#endif
- }
- #endif
-+
-+ if (!user_mode(regs))
-+ pc = ktla_ktva(pc);
-+
- return pc;
- }
- EXPORT_SYMBOL(profile_pc);
-diff -urNp linux-2.6.28.7/arch/x86/kernel/time_64.c linux-2.6.28.7/arch/x86/kernel/time_64.c
---- linux-2.6.28.7/arch/x86/kernel/time_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/time_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -34,7 +34,7 @@ unsigned long profile_pc(struct pt_regs
- /* Assume the lock function has either no stack frame or a copy
- of flags from PUSHF
- Eflags always has bits 22 and up cleared unlike kernel addresses. */
-- if (!user_mode_vm(regs) && in_lock_functions(pc)) {
-+ if (!user_mode(regs) && in_lock_functions(pc)) {
- #ifdef CONFIG_FRAME_POINTER
- return *(unsigned long *)(regs->bp + sizeof(long));
- #else
-diff -urNp linux-2.6.28.7/arch/x86/kernel/tlb_32.c linux-2.6.28.7/arch/x86/kernel/tlb_32.c
---- linux-2.6.28.7/arch/x86/kernel/tlb_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/tlb_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -5,7 +5,7 @@
- #include <asm/tlbflush.h>
-
- DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate)
-- ____cacheline_aligned = { &init_mm, 0, };
-+ ____cacheline_aligned = { &init_mm, 0, {0} };
-
- /* must come after the send_IPI functions above for inlining */
- #include <mach_ipi.h>
-diff -urNp linux-2.6.28.7/arch/x86/kernel/tls.c linux-2.6.28.7/arch/x86/kernel/tls.c
---- linux-2.6.28.7/arch/x86/kernel/tls.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/tls.c 2009-02-21 09:37:48.000000000 -0500
-@@ -85,6 +85,11 @@ int do_set_thread_area(struct task_struc
- if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
- return -EINVAL;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
-+ return -EINVAL;
-+#endif
-+
- set_tls_desc(p, idx, &info, 1);
-
- return 0;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/traps.c linux-2.6.28.7/arch/x86/kernel/traps.c
---- linux-2.6.28.7/arch/x86/kernel/traps.c 2009-02-20 22:26:38.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/traps.c 2009-02-21 09:37:48.000000000 -0500
-@@ -79,14 +79,6 @@ asmlinkage int system_call(void);
-
- /* Do we ignore FPU interrupts ? */
- char ignore_fpu_irq;
--
--/*
-- * The IDT has to be page-aligned to simplify the Pentium
-- * F0 0F bug workaround.. We have a special link segment
-- * for this.
-- */
--gate_desc idt_table[256]
-- __attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
- #endif
-
- static int ignore_nmis;
-@@ -121,7 +113,7 @@ static inline void preempt_conditional_c
- static inline void
- die_if_kernel(const char *str, struct pt_regs *regs, long err)
- {
-- if (!user_mode_vm(regs))
-+ if (!user_mode(regs))
- die(str, regs, err);
- }
-
-@@ -138,7 +130,7 @@ static int lazy_iobitmap_copy(void)
- int cpu;
-
- cpu = get_cpu();
-- tss = &per_cpu(init_tss, cpu);
-+ tss = init_tss + cpu;
- thread = ¤t->thread;
-
- if (tss->x86_tss.io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY &&
-@@ -174,7 +166,7 @@ do_trap(int trapnr, int signr, char *str
- struct task_struct *tsk = current;
-
- #ifdef CONFIG_X86_32
-- if (regs->flags & X86_VM_MASK) {
-+ if (v8086_mode(regs)) {
- /*
- * traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
- * On nmi (interrupt 2), do_trap should not be called.
-@@ -185,7 +177,7 @@ do_trap(int trapnr, int signr, char *str
- }
- #endif
-
-- if (!user_mode(regs))
-+ if (!user_mode_novm(regs))
- goto kernel_trap;
-
- #ifdef CONFIG_X86_32
-@@ -227,6 +219,12 @@ kernel_trap:
- tsk->thread.trap_no = trapnr;
- die(str, regs, error_code);
- }
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+ if (trapnr == 4)
-+ pax_report_refcount_overflow(regs);
-+#endif
-+
- return;
-
- #ifdef CONFIG_X86_32
-@@ -318,14 +316,30 @@ do_general_protection(struct pt_regs *re
- return;
- }
-
-- if (regs->flags & X86_VM_MASK)
-+ if (v8086_mode(regs))
- goto gp_in_vm86;
- #endif
-
- tsk = current;
-- if (!user_mode(regs))
-+ if (!user_mode_novm(regs))
- goto gp_in_kernel;
-
-+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
-+ if (!nx_enabled && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
-+ struct mm_struct *mm = tsk->mm;
-+ unsigned long limit;
-+
-+ down_write(&mm->mmap_sem);
-+ limit = mm->context.user_cs_limit;
-+ if (limit < TASK_SIZE) {
-+ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
-+ up_write(&mm->mmap_sem);
-+ return;
-+ }
-+ up_write(&mm->mmap_sem);
-+ }
-+#endif
-+
- tsk->thread.error_code = error_code;
- tsk->thread.trap_no = 13;
-
-@@ -358,6 +372,13 @@ gp_in_kernel:
- if (notify_die(DIE_GPF, "general protection fault", regs,
- error_code, 13, SIGSEGV) == NOTIFY_STOP)
- return;
-+
-+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+ if ((regs->cs & 0xFFFF) == __KERNEL_CS)
-+ die("PAX: suspicious general protection fault", regs, error_code);
-+ else
-+#endif
-+
- die("general protection fault", regs, error_code);
- }
-
-@@ -604,7 +625,7 @@ dotraplinkage void __kprobes do_debug(st
- }
-
- #ifdef CONFIG_X86_32
-- if (regs->flags & X86_VM_MASK)
-+ if (v8086_mode(regs))
- goto debug_vm86;
- #endif
-
-@@ -616,7 +637,7 @@ dotraplinkage void __kprobes do_debug(st
- * kernel space (but re-enable TF when returning to user mode).
- */
- if (condition & DR_STEP) {
-- if (!user_mode(regs))
-+ if (!user_mode_novm(regs))
- goto clear_TF_reenable;
- }
-
-@@ -808,7 +829,7 @@ do_simd_coprocessor_error(struct pt_regs
- * Handle strange cache flush from user space exception
- * in all other cases. This is undocumented behaviour.
- */
-- if (regs->flags & X86_VM_MASK) {
-+ if (v8086_mode(regs)) {
- handle_vm86_fault((struct kernel_vm86_regs *)regs, error_code);
- return;
- }
-@@ -837,19 +858,14 @@ do_spurious_interrupt_bug(struct pt_regs
- #ifdef CONFIG_X86_32
- unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp)
- {
-- struct desc_struct *gdt = get_cpu_gdt_table(smp_processor_id());
- unsigned long base = (kesp - uesp) & -THREAD_SIZE;
- unsigned long new_kesp = kesp - base;
- unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT;
-- __u64 desc = *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS];
-+ struct desc_struct ss;
-
- /* Set up base for espfix segment */
-- desc &= 0x00f0ff0000000000ULL;
-- desc |= ((((__u64)base) << 16) & 0x000000ffffff0000ULL) |
-- ((((__u64)base) << 32) & 0xff00000000000000ULL) |
-- ((((__u64)lim_pages) << 32) & 0x000f000000000000ULL) |
-- (lim_pages & 0xffff);
-- *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS] = desc;
-+ pack_descriptor(&ss, base, lim_pages, 0x93, 0xC);
-+ write_gdt_entry(get_cpu_gdt_table(smp_processor_id()), GDT_ENTRY_ESPFIX_SS, &ss, DESCTYPE_S);
-
- return new_kesp;
- }
-diff -urNp linux-2.6.28.7/arch/x86/kernel/tsc.c linux-2.6.28.7/arch/x86/kernel/tsc.c
---- linux-2.6.28.7/arch/x86/kernel/tsc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/tsc.c 2009-02-21 09:37:48.000000000 -0500
-@@ -728,7 +728,7 @@ static struct dmi_system_id __initdata b
- DMI_MATCH(DMI_BOARD_NAME, "2635FA0"),
- },
- },
-- {}
-+ { NULL, NULL, {{0, {0}}}, NULL}
- };
-
- /*
-diff -urNp linux-2.6.28.7/arch/x86/kernel/vm86_32.c linux-2.6.28.7/arch/x86/kernel/vm86_32.c
---- linux-2.6.28.7/arch/x86/kernel/vm86_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/vm86_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -148,7 +148,7 @@ struct pt_regs *save_v86_state(struct ke
- do_exit(SIGSEGV);
- }
-
-- tss = &per_cpu(init_tss, get_cpu());
-+ tss = init_tss + get_cpu();
- current->thread.sp0 = current->thread.saved_sp0;
- current->thread.sysenter_cs = __KERNEL_CS;
- load_sp0(tss, ¤t->thread);
-@@ -325,7 +325,7 @@ static void do_sys_vm86(struct kernel_vm
- tsk->thread.saved_fs = info->regs32->fs;
- savesegment(gs, tsk->thread.saved_gs);
-
-- tss = &per_cpu(init_tss, get_cpu());
-+ tss = init_tss + get_cpu();
- tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
- if (cpu_has_sep)
- tsk->thread.sysenter_cs = 0;
-diff -urNp linux-2.6.28.7/arch/x86/kernel/vmi_32.c linux-2.6.28.7/arch/x86/kernel/vmi_32.c
---- linux-2.6.28.7/arch/x86/kernel/vmi_32.c 2009-02-08 00:54:27.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/vmi_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -102,18 +102,43 @@ static unsigned patch_internal(int call,
- {
- u64 reloc;
- struct vmi_relocation_info *const rel = (struct vmi_relocation_info *)&reloc;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- reloc = call_vrom_long_func(vmi_rom, get_reloc, call);
- switch(rel->type) {
- case VMI_RELOCATION_CALL_REL:
- BUG_ON(len < 5);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- *(char *)insnbuf = MNEM_CALL;
- patch_offset(insnbuf, ip, (unsigned long)rel->eip);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- return 5;
-
- case VMI_RELOCATION_JUMP_REL:
- BUG_ON(len < 5);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- *(char *)insnbuf = MNEM_JMP;
- patch_offset(insnbuf, ip, (unsigned long)rel->eip);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- return 5;
-
- case VMI_RELOCATION_NOP:
-@@ -526,14 +551,14 @@ static void vmi_set_pud(pud_t *pudp, pud
-
- static void vmi_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
- {
-- const pte_t pte = { .pte = 0 };
-+ const pte_t pte = __pte(0ULL);
- vmi_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE);
- vmi_ops.set_pte(pte, ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0));
- }
-
- static void vmi_pmd_clear(pmd_t *pmd)
- {
-- const pte_t pte = { .pte = 0 };
-+ const pte_t pte = __pte(0ULL);
- vmi_check_page_type(__pa(pmd) >> PAGE_SHIFT, VMI_PAGE_PMD);
- vmi_ops.set_pte(pte, (pte_t *)pmd, VMI_PAGE_PD);
- }
-@@ -562,8 +587,8 @@ vmi_startup_ipi_hook(int phys_apicid, un
- ap.ss = __KERNEL_DS;
- ap.esp = (unsigned long) start_esp;
-
-- ap.ds = __USER_DS;
-- ap.es = __USER_DS;
-+ ap.ds = __KERNEL_DS;
-+ ap.es = __KERNEL_DS;
- ap.fs = __KERNEL_PERCPU;
- ap.gs = 0;
-
-@@ -758,12 +783,20 @@ static inline int __init activate_vmi(vo
- u64 reloc;
- const struct vmi_relocation_info *rel = (struct vmi_relocation_info *)&reloc;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- if (call_vrom_func(vmi_rom, vmi_init) != 0) {
- printk(KERN_ERR "VMI ROM failed to initialize!");
- return 0;
- }
- savesegment(cs, kernel_cs);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- pv_info.paravirt_enabled = 1;
- pv_info.kernel_rpl = kernel_cs & SEGMENT_RPL_MASK;
- pv_info.name = "vmi";
-@@ -954,6 +987,10 @@ static inline int __init activate_vmi(vo
-
- para_fill(pv_irq_ops.safe_halt, Halt);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- /*
- * Alternative instruction rewriting doesn't happen soon enough
- * to convert VMI_IRET to a call instead of a jump; so we have
-diff -urNp linux-2.6.28.7/arch/x86/kernel/vmlinux_32.lds.S linux-2.6.28.7/arch/x86/kernel/vmlinux_32.lds.S
---- linux-2.6.28.7/arch/x86/kernel/vmlinux_32.lds.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/vmlinux_32.lds.S 2009-02-21 09:37:48.000000000 -0500
-@@ -15,6 +15,20 @@
- #include <asm/page.h>
- #include <asm/cache.h>
- #include <asm/boot.h>
-+#include <asm/segment.h>
-+
-+#ifdef CONFIG_X86_PAE
-+#define PMD_SHIFT 21
-+#else
-+#define PMD_SHIFT 22
-+#endif
-+#define PMD_SIZE (1 << PMD_SHIFT)
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+#define __KERNEL_TEXT_OFFSET (__PAGE_OFFSET + (((____LOAD_PHYSICAL_ADDR + 2*(PMD_SIZE - 1)) - 1) & ~(PMD_SIZE - 1)))
-+#else
-+#define __KERNEL_TEXT_OFFSET 0
-+#endif
-
- OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
- OUTPUT_ARCH(i386)
-@@ -22,81 +36,23 @@ ENTRY(phys_startup_32)
- jiffies = jiffies_64;
-
- PHDRS {
-- text PT_LOAD FLAGS(5); /* R_E */
-- data PT_LOAD FLAGS(7); /* RWE */
-- note PT_NOTE FLAGS(0); /* ___ */
-+ initdata PT_LOAD FLAGS(6); /* RW_ */
-+ percpu PT_LOAD FLAGS(6); /* RW_ */
-+ inittext PT_LOAD FLAGS(5); /* R_E */
-+ text PT_LOAD FLAGS(5); /* R_E */
-+ rodata PT_LOAD FLAGS(4); /* R__ */
-+ data PT_LOAD FLAGS(6); /* RW_ */
-+ note PT_NOTE FLAGS(0); /* ___ */
- }
- SECTIONS
- {
-- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
-- phys_startup_32 = startup_32 - LOAD_OFFSET;
-+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
-
-- .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) {
-- _text = .; /* Text and read-only data */
-- *(.text.head)
-- } :text = 0x9090
--
-- /* read-only */
-- .text : AT(ADDR(.text) - LOAD_OFFSET) {
-- . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */
-- *(.text.page_aligned)
-- TEXT_TEXT
-- SCHED_TEXT
-- LOCK_TEXT
-- KPROBES_TEXT
-- *(.fixup)
-- *(.gnu.warning)
-- _etext = .; /* End of text section */
-- } :text = 0x9090
--
-- NOTES :text :note
--
-- . = ALIGN(16); /* Exception table */
-- __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
-- __start___ex_table = .;
-- *(__ex_table)
-- __stop___ex_table = .;
-- } :text = 0x9090
--
-- RODATA
--
-- /* writeable */
-- . = ALIGN(PAGE_SIZE);
-- .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
-- DATA_DATA
-- CONSTRUCTORS
-- } :data
--
-- . = ALIGN(PAGE_SIZE);
-- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
-- __nosave_begin = .;
-- *(.data.nosave)
-- . = ALIGN(PAGE_SIZE);
-- __nosave_end = .;
-- }
--
-- . = ALIGN(PAGE_SIZE);
-- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
-- *(.data.page_aligned)
-- *(.data.idt)
-- }
--
-- . = ALIGN(32);
-- .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
-- *(.data.cacheline_aligned)
-- }
--
-- /* rarely changed data like cpu maps */
-- . = ALIGN(32);
-- .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
-- *(.data.read_mostly)
-- _edata = .; /* End of data section */
-- }
--
-- . = ALIGN(THREAD_SIZE); /* init_task */
-- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
-- *(.data.init_task)
-- }
-+ .text.startup : AT(ADDR(.text.startup) - LOAD_OFFSET) {
-+ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET;
-+ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
-+ *(.text.startup)
-+ } :initdata
-
- /* might get freed after init */
- . = ALIGN(PAGE_SIZE);
-@@ -114,14 +70,8 @@ SECTIONS
- . = ALIGN(PAGE_SIZE);
-
- /* will be freed after init */
-- . = ALIGN(PAGE_SIZE); /* Init code and data */
-- .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
-- __init_begin = .;
-- _sinittext = .;
-- INIT_TEXT
-- _einittext = .;
-- }
- .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
-+ __init_begin = .;
- INIT_DATA
- }
- . = ALIGN(16);
-@@ -161,11 +111,6 @@ SECTIONS
- *(.parainstructions)
- __parainstructions_end = .;
- }
-- /* .exit.text is discard at runtime, not link time, to deal with references
-- from .altinstructions and .eh_frame */
-- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
-- EXIT_TEXT
-- }
- .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
- EXIT_DATA
- }
-@@ -178,18 +123,138 @@ SECTIONS
- }
- #endif
- . = ALIGN(PAGE_SIZE);
-- .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) {
-- __per_cpu_start = .;
-- *(.data.percpu.page_aligned)
-+ per_cpu_start = .;
-+ .data.percpu (0) : AT(ADDR(.data.percpu) - LOAD_OFFSET + per_cpu_start) {
-+ __per_cpu_start = . + per_cpu_start;
-+ LONG(0)
- *(.data.percpu)
- *(.data.percpu.shared_aligned)
-- __per_cpu_end = .;
-- }
-+ . = ALIGN(PAGE_SIZE);
-+ *(.data.percpu.page_aligned)
-+ __per_cpu_end = . + per_cpu_start;
-+ } :percpu
-+ . += per_cpu_start;
- . = ALIGN(PAGE_SIZE);
- /* freed after init ends here */
-
-+ . = ALIGN(PAGE_SIZE); /* Init code and data */
-+ .init.text (. - __KERNEL_TEXT_OFFSET) : AT(ADDR(.init.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
-+ _sinittext = .;
-+ INIT_TEXT
-+ _einittext = .;
-+ } :inittext
-+
-+ /* .exit.text is discard at runtime, not link time, to deal with references
-+ from .altinstructions and .eh_frame */
-+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
-+ EXIT_TEXT
-+ }
-+
-+ .filler : AT(ADDR(.filler) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
-+ BYTE(0)
-+ . = ALIGN(2*PMD_SIZE) - 1;
-+ }
-+
-+ /* freed after init ends here */
-+
-+ .text.head : AT(ADDR(.text.head) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
-+ __init_end = . + __KERNEL_TEXT_OFFSET;
-+ KERNEL_TEXT_OFFSET = . + __KERNEL_TEXT_OFFSET;
-+ _text = .; /* Text and read-only data */
-+ *(.text.head)
-+ } :text = 0x9090
-+
-+ /* read-only */
-+ .text : AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
-+ . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */
-+ *(.text.page_aligned)
-+ TEXT_TEXT
-+ SCHED_TEXT
-+ LOCK_TEXT
-+ KPROBES_TEXT
-+ *(.fixup)
-+ *(.gnu.warning)
-+ _etext = .; /* End of text section */
-+ } :text = 0x9090
-+
-+ . += __KERNEL_TEXT_OFFSET;
-+
-+ . = ALIGN(4096); /* Exception table */
-+ __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
-+ __start___ex_table = .;
-+ *(__ex_table)
-+ __stop___ex_table = .;
-+ } :rodata
-+
-+ NOTES :rodata :note
-+
-+ RO_DATA(PAGE_SIZE)
-+
-+ . = ALIGN(PAGE_SIZE);
-+ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
-+ *(.idt)
-+ . = ALIGN(PAGE_SIZE);
-+ *(.empty_zero_page)
-+ *(.swapper_pg_pmd)
-+ *(.swapper_pg_dir)
-+ }
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+
-+#ifdef CONFIG_MODULES
-+ . = ALIGN(PAGE_SIZE);
-+ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
-+ MODULES_VADDR = .;
-+ BYTE(0)
-+ . += (6 * 1024 * 1024);
-+ . = ALIGN( PMD_SIZE) - 1;
-+ MODULES_END = .;
-+ }
-+#else
-+ . = ALIGN(PMD_SIZE) - 1;
-+#endif
-+
-+#endif
-+
-+ /* writeable */
-+ . = ALIGN(PAGE_SIZE);
-+ .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
-+ _data = .;
-+ DATA_DATA
-+ CONSTRUCTORS
-+ } :data
-+
-+ . = ALIGN(PAGE_SIZE);
-+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
-+ __nosave_begin = .;
-+ *(.data.nosave)
-+ . = ALIGN(PAGE_SIZE);
-+ __nosave_end = .;
-+ }
-+
-+ . = ALIGN(PAGE_SIZE);
-+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
-+ *(.data.page_aligned)
-+ }
-+
-+ . = ALIGN(32);
-+ .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
-+ *(.data.cacheline_aligned)
-+ }
-+
-+ /* rarely changed data like cpu maps */
-+ . = ALIGN(32);
-+ .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
-+ *(.data.read_mostly)
-+ _edata = .; /* End of data section */
-+ }
-+
-+ . = ALIGN(THREAD_SIZE); /* init_task */
-+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
-+ *(.data.init_task)
-+ }
-+
- .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
-- __init_end = .;
- __bss_start = .; /* BSS */
- *(.bss.page_aligned)
- *(.bss)
-diff -urNp linux-2.6.28.7/arch/x86/kernel/vmlinux_64.lds.S linux-2.6.28.7/arch/x86/kernel/vmlinux_64.lds.S
---- linux-2.6.28.7/arch/x86/kernel/vmlinux_64.lds.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/vmlinux_64.lds.S 2009-02-21 09:37:48.000000000 -0500
-@@ -16,7 +16,7 @@ jiffies_64 = jiffies;
- _proxy_pda = 1;
- PHDRS {
- text PT_LOAD FLAGS(5); /* R_E */
-- data PT_LOAD FLAGS(7); /* RWE */
-+ data PT_LOAD FLAGS(6); /* RW_ */
- user PT_LOAD FLAGS(7); /* RWE */
- data.init PT_LOAD FLAGS(7); /* RWE */
- note PT_NOTE FLAGS(0); /* ___ */
-@@ -49,17 +49,20 @@ SECTIONS
- __stop___ex_table = .;
- } :text = 0x9090
-
-- RODATA
-+ RO_DATA(PAGE_SIZE)
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ . = ALIGN(2*1024*1024); /* Align data segment to PMD size boundary */
-+#else
- . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */
-+#endif
- /* Data */
-+ _data = .;
- .data : AT(ADDR(.data) - LOAD_OFFSET) {
- DATA_DATA
- CONSTRUCTORS
- } :data
-
-- _edata = .; /* End of data section */
--
- . = ALIGN(PAGE_SIZE);
- . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
- .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
-@@ -70,9 +73,27 @@ SECTIONS
- *(.data.read_mostly)
- }
-
-+ . = ALIGN(THREAD_SIZE); /* init_task */
-+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
-+ *(.data.init_task)
-+ }
-+
-+ . = ALIGN(PAGE_SIZE);
-+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
-+ *(.data.page_aligned)
-+ }
-+
-+ . = ALIGN(PAGE_SIZE);
-+ __nosave_begin = .;
-+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
-+ . = ALIGN(PAGE_SIZE);
-+ __nosave_end = .;
-+
-+ _edata = .; /* End of data section */
-+
- #define VSYSCALL_ADDR (-10*1024*1024)
--#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095))
--#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095))
-+#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095))
-+#define VSYSCALL_VIRT_ADDR ((ADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095))
-
- #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR)
- #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET)
-@@ -120,23 +141,13 @@ SECTIONS
- #undef VVIRT_OFFSET
- #undef VVIRT
-
-- . = ALIGN(THREAD_SIZE); /* init_task */
-- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
-- *(.data.init_task)
-- }:data.init
--
-- . = ALIGN(PAGE_SIZE);
-- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
-- *(.data.page_aligned)
-- }
--
- /* might get freed after init */
- . = ALIGN(PAGE_SIZE);
- __smp_alt_begin = .;
- __smp_locks = .;
- .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
- *(.smp_locks)
-- }
-+ } :data.init
- __smp_locks_end = .;
- . = ALIGN(PAGE_SIZE);
- __smp_alt_end = .;
-@@ -212,16 +223,11 @@ SECTIONS
- . = ALIGN(PAGE_SIZE);
- __init_end = .;
-
-- . = ALIGN(PAGE_SIZE);
-- __nosave_begin = .;
-- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
-- . = ALIGN(PAGE_SIZE);
-- __nosave_end = .;
--
- __bss_start = .; /* BSS */
- .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
- *(.bss.page_aligned)
- *(.bss)
-+ . = ALIGN(2*1024*1024);
- }
- __bss_stop = .;
-
-diff -urNp linux-2.6.28.7/arch/x86/kernel/vsyscall_64.c linux-2.6.28.7/arch/x86/kernel/vsyscall_64.c
---- linux-2.6.28.7/arch/x86/kernel/vsyscall_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kernel/vsyscall_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -236,13 +236,13 @@ static ctl_table kernel_table2[] = {
- .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = vsyscall_sysctl_change },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static ctl_table kernel_root_table2[] = {
- { .ctl_name = CTL_KERN, .procname = "kernel", .mode = 0555,
- .child = kernel_table2 },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
- #endif
-
-diff -urNp linux-2.6.28.7/arch/x86/kvm/svm.c linux-2.6.28.7/arch/x86/kvm/svm.c
---- linux-2.6.28.7/arch/x86/kvm/svm.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kvm/svm.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1505,7 +1505,19 @@ static void reload_tss(struct kvm_vcpu *
- int cpu = raw_smp_processor_id();
-
- struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- svm_data->tss_desc->type = 9; /* available 32/64-bit TSS */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- load_TR_desc();
- }
-
-@@ -1912,7 +1924,7 @@ static int get_npt_level(void)
- #endif
- }
-
--static struct kvm_x86_ops svm_x86_ops = {
-+static const struct kvm_x86_ops svm_x86_ops = {
- .cpu_has_kvm_support = has_svm,
- .disabled_by_bios = is_disabled,
- .hardware_setup = svm_hardware_setup,
-diff -urNp linux-2.6.28.7/arch/x86/kvm/vmx.c linux-2.6.28.7/arch/x86/kvm/vmx.c
---- linux-2.6.28.7/arch/x86/kvm/vmx.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kvm/vmx.c 2009-02-21 09:37:48.000000000 -0500
-@@ -122,7 +122,7 @@ static struct vmcs_config {
- u32 vmentry_ctrl;
- } vmcs_config;
-
--struct vmx_capability {
-+static struct vmx_capability {
- u32 ept;
- u32 vpid;
- } vmx_capability;
-@@ -491,9 +491,23 @@ static void reload_tss(void)
- struct descriptor_table gdt;
- struct desc_struct *descs;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- kvm_get_gdt(&gdt);
- descs = (void *)gdt.base;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- load_TR_desc();
- }
-
-@@ -2164,7 +2178,7 @@ static int vmx_vcpu_setup(struct vcpu_vm
- vmcs_writel(HOST_IDTR_BASE, dt.base); /* 22.2.4 */
-
- asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return));
-- vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */
-+ vmcs_writel(HOST_RIP, ktla_ktva(kvm_vmx_return)); /* 22.2.5 */
- vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0);
- vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0);
- vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0);
-@@ -3267,6 +3281,12 @@ static void vmx_vcpu_run(struct kvm_vcpu
- "jmp .Lkvm_vmx_return \n\t"
- ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t"
- ".Lkvm_vmx_return: "
-+
-+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+ "ljmp %[cs],$.Lkvm_vmx_return2\n\t"
-+ ".Lkvm_vmx_return2: "
-+#endif
-+
- /* Save guest registers, load host registers, keep flags */
- "xchg %0, (%%"R"sp) \n\t"
- "mov %%"R"ax, %c[rax](%0) \n\t"
-@@ -3313,6 +3333,11 @@ static void vmx_vcpu_run(struct kvm_vcpu
- [r15]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R15])),
- #endif
- [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2))
-+
-+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+ ,[cs]"i"(__KERNEL_CS)
-+#endif
-+
- : "cc", "memory"
- , R"bx", R"di", R"si"
- #ifdef CONFIG_X86_64
-@@ -3331,7 +3356,7 @@ static void vmx_vcpu_run(struct kvm_vcpu
- (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) &
- (GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS)) == 0;
-
-- asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS));
-+ asm("mov %0, %%ds; mov %0, %%es" : : "r"(__KERNEL_DS));
- vmx->launched = 1;
-
- intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
-@@ -3455,7 +3480,7 @@ static int get_ept_level(void)
- return VMX_EPT_DEFAULT_GAW + 1;
- }
-
--static struct kvm_x86_ops vmx_x86_ops = {
-+static const struct kvm_x86_ops vmx_x86_ops = {
- .cpu_has_kvm_support = cpu_has_kvm_support,
- .disabled_by_bios = vmx_disabled_by_bios,
- .hardware_setup = hardware_setup,
-diff -urNp linux-2.6.28.7/arch/x86/kvm/x86.c linux-2.6.28.7/arch/x86/kvm/x86.c
---- linux-2.6.28.7/arch/x86/kvm/x86.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/kvm/x86.c 2009-02-21 09:37:48.000000000 -0500
-@@ -68,41 +68,41 @@ static u64 __read_mostly efer_reserved_b
- static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
- struct kvm_cpuid_entry2 __user *entries);
-
--struct kvm_x86_ops *kvm_x86_ops;
-+const struct kvm_x86_ops *kvm_x86_ops;
- EXPORT_SYMBOL_GPL(kvm_x86_ops);
-
- struct kvm_stats_debugfs_item debugfs_entries[] = {
-- { "pf_fixed", VCPU_STAT(pf_fixed) },
-- { "pf_guest", VCPU_STAT(pf_guest) },
-- { "tlb_flush", VCPU_STAT(tlb_flush) },
-- { "invlpg", VCPU_STAT(invlpg) },
-- { "exits", VCPU_STAT(exits) },
-- { "io_exits", VCPU_STAT(io_exits) },
-- { "mmio_exits", VCPU_STAT(mmio_exits) },
-- { "signal_exits", VCPU_STAT(signal_exits) },
-- { "irq_window", VCPU_STAT(irq_window_exits) },
-- { "nmi_window", VCPU_STAT(nmi_window_exits) },
-- { "halt_exits", VCPU_STAT(halt_exits) },
-- { "halt_wakeup", VCPU_STAT(halt_wakeup) },
-- { "hypercalls", VCPU_STAT(hypercalls) },
-- { "request_irq", VCPU_STAT(request_irq_exits) },
-- { "irq_exits", VCPU_STAT(irq_exits) },
-- { "host_state_reload", VCPU_STAT(host_state_reload) },
-- { "efer_reload", VCPU_STAT(efer_reload) },
-- { "fpu_reload", VCPU_STAT(fpu_reload) },
-- { "insn_emulation", VCPU_STAT(insn_emulation) },
-- { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) },
-- { "irq_injections", VCPU_STAT(irq_injections) },
-- { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) },
-- { "mmu_pte_write", VM_STAT(mmu_pte_write) },
-- { "mmu_pte_updated", VM_STAT(mmu_pte_updated) },
-- { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) },
-- { "mmu_flooded", VM_STAT(mmu_flooded) },
-- { "mmu_recycled", VM_STAT(mmu_recycled) },
-- { "mmu_cache_miss", VM_STAT(mmu_cache_miss) },
-- { "mmu_unsync", VM_STAT(mmu_unsync) },
-- { "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
-- { "largepages", VM_STAT(lpages) },
-+ { "pf_fixed", VCPU_STAT(pf_fixed), NULL },
-+ { "pf_guest", VCPU_STAT(pf_guest), NULL },
-+ { "tlb_flush", VCPU_STAT(tlb_flush), NULL },
-+ { "invlpg", VCPU_STAT(invlpg), NULL },
-+ { "exits", VCPU_STAT(exits), NULL },
-+ { "io_exits", VCPU_STAT(io_exits), NULL },
-+ { "mmio_exits", VCPU_STAT(mmio_exits), NULL },
-+ { "signal_exits", VCPU_STAT(signal_exits), NULL },
-+ { "irq_window", VCPU_STAT(irq_window_exits), NULL },
-+ { "nmi_window", VCPU_STAT(nmi_window_exits), NULL },
-+ { "halt_exits", VCPU_STAT(halt_exits), NULL },
-+ { "halt_wakeup", VCPU_STAT(halt_wakeup), NULL },
-+ { "hypercalls", VCPU_STAT(hypercalls), NULL },
-+ { "request_irq", VCPU_STAT(request_irq_exits), NULL },
-+ { "irq_exits", VCPU_STAT(irq_exits), NULL },
-+ { "host_state_reload", VCPU_STAT(host_state_reload), NULL },
-+ { "efer_reload", VCPU_STAT(efer_reload), NULL },
-+ { "fpu_reload", VCPU_STAT(fpu_reload), NULL },
-+ { "insn_emulation", VCPU_STAT(insn_emulation), NULL },
-+ { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail), NULL },
-+ { "irq_injections", VCPU_STAT(irq_injections), NULL },
-+ { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped), NULL },
-+ { "mmu_pte_write", VM_STAT(mmu_pte_write), NULL },
-+ { "mmu_pte_updated", VM_STAT(mmu_pte_updated), NULL },
-+ { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped), NULL },
-+ { "mmu_flooded", VM_STAT(mmu_flooded), NULL },
-+ { "mmu_recycled", VM_STAT(mmu_recycled), NULL },
-+ { "mmu_cache_miss", VM_STAT(mmu_cache_miss), NULL },
-+ { "mmu_unsync", VM_STAT(mmu_unsync), NULL },
-+ { "remote_tlb_flush", VM_STAT(remote_tlb_flush), NULL },
-+ { "largepages", VM_STAT(lpages), NULL },
- { NULL }
- };
-
-@@ -1304,7 +1304,7 @@ static int kvm_vcpu_ioctl_set_lapic(stru
- static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
- struct kvm_interrupt *irq)
- {
-- if (irq->irq < 0 || irq->irq >= 256)
-+ if (irq->irq >= 256)
- return -EINVAL;
- if (irqchip_in_kernel(vcpu->kvm))
- return -ENXIO;
-@@ -2509,10 +2509,10 @@ int kvm_emulate_pio_string(struct kvm_vc
- }
- EXPORT_SYMBOL_GPL(kvm_emulate_pio_string);
-
--int kvm_arch_init(void *opaque)
-+int kvm_arch_init(const void *opaque)
- {
- int r;
-- struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
-+ const struct kvm_x86_ops *ops = (const struct kvm_x86_ops *)opaque;
-
- if (kvm_x86_ops) {
- printk(KERN_ERR "kvm: already loaded the other module\n");
-diff -urNp linux-2.6.28.7/arch/x86/lib/checksum_32.S linux-2.6.28.7/arch/x86/lib/checksum_32.S
---- linux-2.6.28.7/arch/x86/lib/checksum_32.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/checksum_32.S 2009-02-21 09:37:48.000000000 -0500
-@@ -28,7 +28,8 @@
- #include <linux/linkage.h>
- #include <asm/dwarf2.h>
- #include <asm/errno.h>
--
-+#include <asm/segment.h>
-+
- /*
- * computes a partial checksum, e.g. for TCP/UDP fragments
- */
-@@ -304,9 +305,22 @@ unsigned int csum_partial_copy_generic (
-
- #define ARGBASE 16
- #define FP 12
--
--ENTRY(csum_partial_copy_generic)
-+
-+ENTRY(csum_partial_copy_generic_to_user)
- CFI_STARTPROC
-+ pushl $(__USER_DS)
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %es
-+ CFI_ADJUST_CFA_OFFSET -4
-+ jmp csum_partial_copy_generic
-+
-+ENTRY(csum_partial_copy_generic_from_user)
-+ pushl $(__USER_DS)
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %ds
-+ CFI_ADJUST_CFA_OFFSET -4
-+
-+ENTRY(csum_partial_copy_generic)
- subl $4,%esp
- CFI_ADJUST_CFA_OFFSET 4
- pushl %edi
-@@ -331,7 +345,7 @@ ENTRY(csum_partial_copy_generic)
- jmp 4f
- SRC(1: movw (%esi), %bx )
- addl $2, %esi
--DST( movw %bx, (%edi) )
-+DST( movw %bx, %es:(%edi) )
- addl $2, %edi
- addw %bx, %ax
- adcl $0, %eax
-@@ -343,30 +357,30 @@ DST( movw %bx, (%edi) )
- SRC(1: movl (%esi), %ebx )
- SRC( movl 4(%esi), %edx )
- adcl %ebx, %eax
--DST( movl %ebx, (%edi) )
-+DST( movl %ebx, %es:(%edi) )
- adcl %edx, %eax
--DST( movl %edx, 4(%edi) )
-+DST( movl %edx, %es:4(%edi) )
-
- SRC( movl 8(%esi), %ebx )
- SRC( movl 12(%esi), %edx )
- adcl %ebx, %eax
--DST( movl %ebx, 8(%edi) )
-+DST( movl %ebx, %es:8(%edi) )
- adcl %edx, %eax
--DST( movl %edx, 12(%edi) )
-+DST( movl %edx, %es:12(%edi) )
-
- SRC( movl 16(%esi), %ebx )
- SRC( movl 20(%esi), %edx )
- adcl %ebx, %eax
--DST( movl %ebx, 16(%edi) )
-+DST( movl %ebx, %es:16(%edi) )
- adcl %edx, %eax
--DST( movl %edx, 20(%edi) )
-+DST( movl %edx, %es:20(%edi) )
-
- SRC( movl 24(%esi), %ebx )
- SRC( movl 28(%esi), %edx )
- adcl %ebx, %eax
--DST( movl %ebx, 24(%edi) )
-+DST( movl %ebx, %es:24(%edi) )
- adcl %edx, %eax
--DST( movl %edx, 28(%edi) )
-+DST( movl %edx, %es:28(%edi) )
-
- lea 32(%esi), %esi
- lea 32(%edi), %edi
-@@ -380,7 +394,7 @@ DST( movl %edx, 28(%edi) )
- shrl $2, %edx # This clears CF
- SRC(3: movl (%esi), %ebx )
- adcl %ebx, %eax
--DST( movl %ebx, (%edi) )
-+DST( movl %ebx, %es:(%edi) )
- lea 4(%esi), %esi
- lea 4(%edi), %edi
- dec %edx
-@@ -392,12 +406,12 @@ DST( movl %ebx, (%edi) )
- jb 5f
- SRC( movw (%esi), %cx )
- leal 2(%esi), %esi
--DST( movw %cx, (%edi) )
-+DST( movw %cx, %es:(%edi) )
- leal 2(%edi), %edi
- je 6f
- shll $16,%ecx
- SRC(5: movb (%esi), %cl )
--DST( movb %cl, (%edi) )
-+DST( movb %cl, %es:(%edi) )
- 6: addl %ecx, %eax
- adcl $0, %eax
- 7:
-@@ -408,7 +422,7 @@ DST( movb %cl, (%edi) )
-
- 6001:
- movl ARGBASE+20(%esp), %ebx # src_err_ptr
-- movl $-EFAULT, (%ebx)
-+ movl $-EFAULT, %ss:(%ebx)
-
- # zero the complete destination - computing the rest
- # is too much work
-@@ -421,11 +435,19 @@ DST( movb %cl, (%edi) )
-
- 6002:
- movl ARGBASE+24(%esp), %ebx # dst_err_ptr
-- movl $-EFAULT,(%ebx)
-+ movl $-EFAULT,%ss:(%ebx)
- jmp 5000b
-
- .previous
-
-+ pushl %ss
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %ds
-+ CFI_ADJUST_CFA_OFFSET -4
-+ pushl %ss
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %es
-+ CFI_ADJUST_CFA_OFFSET -4
- popl %ebx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ebx
-@@ -439,26 +461,41 @@ DST( movb %cl, (%edi) )
- CFI_ADJUST_CFA_OFFSET -4
- ret
- CFI_ENDPROC
--ENDPROC(csum_partial_copy_generic)
-+ENDPROC(csum_partial_copy_generic_to_user)
-
- #else
-
- /* Version for PentiumII/PPro */
-
- #define ROUND1(x) \
-+ nop; nop; nop; \
- SRC(movl x(%esi), %ebx ) ; \
- addl %ebx, %eax ; \
-- DST(movl %ebx, x(%edi) ) ;
-+ DST(movl %ebx, %es:x(%edi)) ;
-
- #define ROUND(x) \
-+ nop; nop; nop; \
- SRC(movl x(%esi), %ebx ) ; \
- adcl %ebx, %eax ; \
-- DST(movl %ebx, x(%edi) ) ;
-+ DST(movl %ebx, %es:x(%edi)) ;
-
- #define ARGBASE 12
--
--ENTRY(csum_partial_copy_generic)
-+
-+ENTRY(csum_partial_copy_generic_to_user)
- CFI_STARTPROC
-+ pushl $(__USER_DS)
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %es
-+ CFI_ADJUST_CFA_OFFSET -4
-+ jmp csum_partial_copy_generic
-+
-+ENTRY(csum_partial_copy_generic_from_user)
-+ pushl $(__USER_DS)
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %ds
-+ CFI_ADJUST_CFA_OFFSET -4
-+
-+ENTRY(csum_partial_copy_generic)
- pushl %ebx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ebx, 0
-@@ -482,7 +519,7 @@ ENTRY(csum_partial_copy_generic)
- subl %ebx, %edi
- lea -1(%esi),%edx
- andl $-32,%edx
-- lea 3f(%ebx,%ebx), %ebx
-+ lea 3f(%ebx,%ebx,2), %ebx
- testl %esi, %esi
- jmp *%ebx
- 1: addl $64,%esi
-@@ -503,19 +540,19 @@ ENTRY(csum_partial_copy_generic)
- jb 5f
- SRC( movw (%esi), %dx )
- leal 2(%esi), %esi
--DST( movw %dx, (%edi) )
-+DST( movw %dx, %es:(%edi) )
- leal 2(%edi), %edi
- je 6f
- shll $16,%edx
- 5:
- SRC( movb (%esi), %dl )
--DST( movb %dl, (%edi) )
-+DST( movb %dl, %es:(%edi) )
- 6: addl %edx, %eax
- adcl $0, %eax
- 7:
- .section .fixup, "ax"
- 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr
-- movl $-EFAULT, (%ebx)
-+ movl $-EFAULT, %ss:(%ebx)
- # zero the complete destination (computing the rest is too much work)
- movl ARGBASE+8(%esp),%edi # dst
- movl ARGBASE+12(%esp),%ecx # len
-@@ -523,10 +560,18 @@ DST( movb %dl, (%edi) )
- rep; stosb
- jmp 7b
- 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr
-- movl $-EFAULT, (%ebx)
-+ movl $-EFAULT, %ss:(%ebx)
- jmp 7b
- .previous
-
-+ pushl %ss
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %ds
-+ CFI_ADJUST_CFA_OFFSET -4
-+ pushl %ss
-+ CFI_ADJUST_CFA_OFFSET 4
-+ popl %es
-+ CFI_ADJUST_CFA_OFFSET -4
- popl %esi
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE esi
-@@ -538,7 +583,7 @@ DST( movb %dl, (%edi) )
- CFI_RESTORE ebx
- ret
- CFI_ENDPROC
--ENDPROC(csum_partial_copy_generic)
-+ENDPROC(csum_partial_copy_generic_to_user)
-
- #undef ROUND
- #undef ROUND1
-diff -urNp linux-2.6.28.7/arch/x86/lib/clear_page_64.S linux-2.6.28.7/arch/x86/lib/clear_page_64.S
---- linux-2.6.28.7/arch/x86/lib/clear_page_64.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/clear_page_64.S 2009-02-21 09:37:48.000000000 -0500
-@@ -44,7 +44,7 @@ ENDPROC(clear_page)
-
- #include <asm/cpufeature.h>
-
-- .section .altinstr_replacement,"ax"
-+ .section .altinstr_replacement,"a"
- 1: .byte 0xeb /* jmp <disp8> */
- .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */
- 2:
-diff -urNp linux-2.6.28.7/arch/x86/lib/copy_page_64.S linux-2.6.28.7/arch/x86/lib/copy_page_64.S
---- linux-2.6.28.7/arch/x86/lib/copy_page_64.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/copy_page_64.S 2009-02-21 09:37:48.000000000 -0500
-@@ -104,7 +104,7 @@ ENDPROC(copy_page)
-
- #include <asm/cpufeature.h>
-
-- .section .altinstr_replacement,"ax"
-+ .section .altinstr_replacement,"a"
- 1: .byte 0xeb /* jmp <disp8> */
- .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */
- 2:
-diff -urNp linux-2.6.28.7/arch/x86/lib/copy_user_64.S linux-2.6.28.7/arch/x86/lib/copy_user_64.S
---- linux-2.6.28.7/arch/x86/lib/copy_user_64.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/copy_user_64.S 2009-02-21 09:37:48.000000000 -0500
-@@ -21,7 +21,7 @@
- .byte 0xe9 /* 32bit jump */
- .long \orig-1f /* by default jump to orig */
- 1:
-- .section .altinstr_replacement,"ax"
-+ .section .altinstr_replacement,"a"
- 2: .byte 0xe9 /* near jump with 32bit immediate */
- .long \alt-1b /* offset */ /* or alternatively to alt */
- .previous
-@@ -106,6 +106,8 @@ ENDPROC(__copy_from_user_inatomic)
- ENTRY(bad_from_user)
- bad_from_user:
- CFI_STARTPROC
-+ testl %edx,%edx
-+ js bad_to_user
- movl %edx,%ecx
- xorl %eax,%eax
- rep
-diff -urNp linux-2.6.28.7/arch/x86/lib/getuser.S linux-2.6.28.7/arch/x86/lib/getuser.S
---- linux-2.6.28.7/arch/x86/lib/getuser.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/getuser.S 2009-02-21 09:37:48.000000000 -0500
-@@ -33,6 +33,7 @@
- #include <asm/asm-offsets.h>
- #include <asm/thread_info.h>
- #include <asm/asm.h>
-+#include <asm/segment.h>
-
- .text
- ENTRY(__get_user_1)
-@@ -40,7 +41,19 @@ ENTRY(__get_user_1)
- GET_THREAD_INFO(%_ASM_DX)
- cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
- jae bad_get_user
-+
-+#ifdef CONFIG_X86_32
-+ pushl $(__USER_DS)
-+ popl %ds
-+#endif
-+
- 1: movzb (%_ASM_AX),%edx
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ pop %ds
-+#endif
-+
- xor %eax,%eax
- ret
- CFI_ENDPROC
-@@ -53,7 +66,19 @@ ENTRY(__get_user_2)
- GET_THREAD_INFO(%_ASM_DX)
- cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
- jae bad_get_user
-+
-+#ifdef CONFIG_X86_32
-+ pushl $(__USER_DS)
-+ popl %ds
-+#endif
-+
- 2: movzwl -1(%_ASM_AX),%edx
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ pop %ds
-+#endif
-+
- xor %eax,%eax
- ret
- CFI_ENDPROC
-@@ -66,7 +91,19 @@ ENTRY(__get_user_4)
- GET_THREAD_INFO(%_ASM_DX)
- cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
- jae bad_get_user
-+
-+#ifdef CONFIG_X86_32
-+ pushl $(__USER_DS)
-+ popl %ds
-+#endif
-+
- 3: mov -3(%_ASM_AX),%edx
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ pop %ds
-+#endif
-+
- xor %eax,%eax
- ret
- CFI_ENDPROC
-@@ -89,6 +126,12 @@ ENDPROC(__get_user_8)
-
- bad_get_user:
- CFI_STARTPROC
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ pop %ds
-+#endif
-+
- xor %edx,%edx
- mov $(-EFAULT),%_ASM_AX
- ret
-diff -urNp linux-2.6.28.7/arch/x86/lib/memcpy_64.S linux-2.6.28.7/arch/x86/lib/memcpy_64.S
---- linux-2.6.28.7/arch/x86/lib/memcpy_64.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/memcpy_64.S 2009-02-21 09:37:48.000000000 -0500
-@@ -114,7 +114,7 @@ ENDPROC(__memcpy)
- /* Some CPUs run faster using the string copy instructions.
- It is also a lot simpler. Use this when possible */
-
-- .section .altinstr_replacement,"ax"
-+ .section .altinstr_replacement,"a"
- 1: .byte 0xeb /* jmp <disp8> */
- .byte (memcpy_c - memcpy) - (2f - 1b) /* offset */
- 2:
-diff -urNp linux-2.6.28.7/arch/x86/lib/memset_64.S linux-2.6.28.7/arch/x86/lib/memset_64.S
---- linux-2.6.28.7/arch/x86/lib/memset_64.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/memset_64.S 2009-02-21 09:37:48.000000000 -0500
-@@ -118,7 +118,7 @@ ENDPROC(__memset)
-
- #include <asm/cpufeature.h>
-
-- .section .altinstr_replacement,"ax"
-+ .section .altinstr_replacement,"a"
- 1: .byte 0xeb /* jmp <disp8> */
- .byte (memset_c - memset) - (2f - 1b) /* offset */
- 2:
-diff -urNp linux-2.6.28.7/arch/x86/lib/mmx_32.c linux-2.6.28.7/arch/x86/lib/mmx_32.c
---- linux-2.6.28.7/arch/x86/lib/mmx_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/mmx_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *
- {
- void *p;
- int i;
-+ unsigned long cr0;
-
- if (unlikely(in_interrupt()))
- return __memcpy(to, from, len);
-@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
-- "1: prefetch (%0)\n" /* This set is 28 bytes */
-- " prefetch 64(%0)\n"
-- " prefetch 128(%0)\n"
-- " prefetch 192(%0)\n"
-- " prefetch 256(%0)\n"
-+ "1: prefetch (%1)\n" /* This set is 28 bytes */
-+ " prefetch 64(%1)\n"
-+ " prefetch 128(%1)\n"
-+ " prefetch 192(%1)\n"
-+ " prefetch 256(%1)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
-- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
-+ "3: \n"
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %%cr0, %0\n"
-+ " movl %0, %%eax\n"
-+ " andl $0xFFFEFFFF, %%eax\n"
-+ " movl %%eax, %%cr0\n"
-+#endif
-+
-+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %0, %%cr0\n"
-+#endif
-+
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
-- : : "r" (from));
-+ : "=&r" (cr0) : "r" (from) : "ax");
-
- for ( ; i > 5; i--) {
- __asm__ __volatile__ (
-- "1: prefetch 320(%0)\n"
-- "2: movq (%0), %%mm0\n"
-- " movq 8(%0), %%mm1\n"
-- " movq 16(%0), %%mm2\n"
-- " movq 24(%0), %%mm3\n"
-- " movq %%mm0, (%1)\n"
-- " movq %%mm1, 8(%1)\n"
-- " movq %%mm2, 16(%1)\n"
-- " movq %%mm3, 24(%1)\n"
-- " movq 32(%0), %%mm0\n"
-- " movq 40(%0), %%mm1\n"
-- " movq 48(%0), %%mm2\n"
-- " movq 56(%0), %%mm3\n"
-- " movq %%mm0, 32(%1)\n"
-- " movq %%mm1, 40(%1)\n"
-- " movq %%mm2, 48(%1)\n"
-- " movq %%mm3, 56(%1)\n"
-+ "1: prefetch 320(%1)\n"
-+ "2: movq (%1), %%mm0\n"
-+ " movq 8(%1), %%mm1\n"
-+ " movq 16(%1), %%mm2\n"
-+ " movq 24(%1), %%mm3\n"
-+ " movq %%mm0, (%2)\n"
-+ " movq %%mm1, 8(%2)\n"
-+ " movq %%mm2, 16(%2)\n"
-+ " movq %%mm3, 24(%2)\n"
-+ " movq 32(%1), %%mm0\n"
-+ " movq 40(%1), %%mm1\n"
-+ " movq 48(%1), %%mm2\n"
-+ " movq 56(%1), %%mm3\n"
-+ " movq %%mm0, 32(%2)\n"
-+ " movq %%mm1, 40(%2)\n"
-+ " movq %%mm2, 48(%2)\n"
-+ " movq %%mm3, 56(%2)\n"
- ".section .fixup, \"ax\"\n"
-- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
-+ "3:\n"
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %%cr0, %0\n"
-+ " movl %0, %%eax\n"
-+ " andl $0xFFFEFFFF, %%eax\n"
-+ " movl %%eax, %%cr0\n"
-+#endif
-+
-+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %0, %%cr0\n"
-+#endif
-+
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
-- : : "r" (from), "r" (to) : "memory");
-+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
-
- from += 64;
- to += 64;
-@@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
- static void fast_copy_page(void *to, void *from)
- {
- int i;
-+ unsigned long cr0;
-
- kernel_fpu_begin();
-
-@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, voi
- * but that is for later. -AV
- */
- __asm__ __volatile__(
-- "1: prefetch (%0)\n"
-- " prefetch 64(%0)\n"
-- " prefetch 128(%0)\n"
-- " prefetch 192(%0)\n"
-- " prefetch 256(%0)\n"
-+ "1: prefetch (%1)\n"
-+ " prefetch 64(%1)\n"
-+ " prefetch 128(%1)\n"
-+ " prefetch 192(%1)\n"
-+ " prefetch 256(%1)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
-- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
-+ "3: \n"
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %%cr0, %0\n"
-+ " movl %0, %%eax\n"
-+ " andl $0xFFFEFFFF, %%eax\n"
-+ " movl %%eax, %%cr0\n"
-+#endif
-+
-+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %0, %%cr0\n"
-+#endif
-+
- " jmp 2b\n"
- ".previous\n"
-- _ASM_EXTABLE(1b, 3b) : : "r" (from));
-+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
-
- for (i = 0; i < (4096-320)/64; i++) {
- __asm__ __volatile__ (
-- "1: prefetch 320(%0)\n"
-- "2: movq (%0), %%mm0\n"
-- " movntq %%mm0, (%1)\n"
-- " movq 8(%0), %%mm1\n"
-- " movntq %%mm1, 8(%1)\n"
-- " movq 16(%0), %%mm2\n"
-- " movntq %%mm2, 16(%1)\n"
-- " movq 24(%0), %%mm3\n"
-- " movntq %%mm3, 24(%1)\n"
-- " movq 32(%0), %%mm4\n"
-- " movntq %%mm4, 32(%1)\n"
-- " movq 40(%0), %%mm5\n"
-- " movntq %%mm5, 40(%1)\n"
-- " movq 48(%0), %%mm6\n"
-- " movntq %%mm6, 48(%1)\n"
-- " movq 56(%0), %%mm7\n"
-- " movntq %%mm7, 56(%1)\n"
-+ "1: prefetch 320(%1)\n"
-+ "2: movq (%1), %%mm0\n"
-+ " movntq %%mm0, (%2)\n"
-+ " movq 8(%1), %%mm1\n"
-+ " movntq %%mm1, 8(%2)\n"
-+ " movq 16(%1), %%mm2\n"
-+ " movntq %%mm2, 16(%2)\n"
-+ " movq 24(%1), %%mm3\n"
-+ " movntq %%mm3, 24(%2)\n"
-+ " movq 32(%1), %%mm4\n"
-+ " movntq %%mm4, 32(%2)\n"
-+ " movq 40(%1), %%mm5\n"
-+ " movntq %%mm5, 40(%2)\n"
-+ " movq 48(%1), %%mm6\n"
-+ " movntq %%mm6, 48(%2)\n"
-+ " movq 56(%1), %%mm7\n"
-+ " movntq %%mm7, 56(%2)\n"
- ".section .fixup, \"ax\"\n"
-- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
-+ "3:\n"
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %%cr0, %0\n"
-+ " movl %0, %%eax\n"
-+ " andl $0xFFFEFFFF, %%eax\n"
-+ " movl %%eax, %%cr0\n"
-+#endif
-+
-+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %0, %%cr0\n"
-+#endif
-+
- " jmp 2b\n"
- ".previous\n"
-- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
-+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
-
- from += 64;
- to += 64;
-@@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
- static void fast_copy_page(void *to, void *from)
- {
- int i;
-+ unsigned long cr0;
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
-- "1: prefetch (%0)\n"
-- " prefetch 64(%0)\n"
-- " prefetch 128(%0)\n"
-- " prefetch 192(%0)\n"
-- " prefetch 256(%0)\n"
-+ "1: prefetch (%1)\n"
-+ " prefetch 64(%1)\n"
-+ " prefetch 128(%1)\n"
-+ " prefetch 192(%1)\n"
-+ " prefetch 256(%1)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
-- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
-+ "3: \n"
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %%cr0, %0\n"
-+ " movl %0, %%eax\n"
-+ " andl $0xFFFEFFFF, %%eax\n"
-+ " movl %%eax, %%cr0\n"
-+#endif
-+
-+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %0, %%cr0\n"
-+#endif
-+
- " jmp 2b\n"
- ".previous\n"
-- _ASM_EXTABLE(1b, 3b) : : "r" (from));
-+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
-
- for (i = 0; i < 4096/64; i++) {
- __asm__ __volatile__ (
-- "1: prefetch 320(%0)\n"
-- "2: movq (%0), %%mm0\n"
-- " movq 8(%0), %%mm1\n"
-- " movq 16(%0), %%mm2\n"
-- " movq 24(%0), %%mm3\n"
-- " movq %%mm0, (%1)\n"
-- " movq %%mm1, 8(%1)\n"
-- " movq %%mm2, 16(%1)\n"
-- " movq %%mm3, 24(%1)\n"
-- " movq 32(%0), %%mm0\n"
-- " movq 40(%0), %%mm1\n"
-- " movq 48(%0), %%mm2\n"
-- " movq 56(%0), %%mm3\n"
-- " movq %%mm0, 32(%1)\n"
-- " movq %%mm1, 40(%1)\n"
-- " movq %%mm2, 48(%1)\n"
-- " movq %%mm3, 56(%1)\n"
-+ "1: prefetch 320(%1)\n"
-+ "2: movq (%1), %%mm0\n"
-+ " movq 8(%1), %%mm1\n"
-+ " movq 16(%1), %%mm2\n"
-+ " movq 24(%1), %%mm3\n"
-+ " movq %%mm0, (%2)\n"
-+ " movq %%mm1, 8(%2)\n"
-+ " movq %%mm2, 16(%2)\n"
-+ " movq %%mm3, 24(%2)\n"
-+ " movq 32(%1), %%mm0\n"
-+ " movq 40(%1), %%mm1\n"
-+ " movq 48(%1), %%mm2\n"
-+ " movq 56(%1), %%mm3\n"
-+ " movq %%mm0, 32(%2)\n"
-+ " movq %%mm1, 40(%2)\n"
-+ " movq %%mm2, 48(%2)\n"
-+ " movq %%mm3, 56(%2)\n"
- ".section .fixup, \"ax\"\n"
-- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
-+ "3:\n"
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %%cr0, %0\n"
-+ " movl %0, %%eax\n"
-+ " andl $0xFFFEFFFF, %%eax\n"
-+ " movl %%eax, %%cr0\n"
-+#endif
-+
-+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ " movl %0, %%cr0\n"
-+#endif
-+
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
-- : : "r" (from), "r" (to) : "memory");
-+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
-
- from += 64;
- to += 64;
-diff -urNp linux-2.6.28.7/arch/x86/lib/putuser.S linux-2.6.28.7/arch/x86/lib/putuser.S
---- linux-2.6.28.7/arch/x86/lib/putuser.S 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/putuser.S 2009-02-21 09:37:48.000000000 -0500
-@@ -15,6 +15,7 @@
- #include <asm/thread_info.h>
- #include <asm/errno.h>
- #include <asm/asm.h>
-+#include <asm/segment.h>
-
-
- /*
-@@ -39,7 +40,19 @@ ENTRY(__put_user_1)
- ENTER
- cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
- jae bad_put_user
-+
-+#ifdef CONFIG_X86_32
-+ pushl $(__USER_DS)
-+ popl %ds
-+#endif
-+
- 1: movb %al,(%_ASM_CX)
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ popl %ds
-+#endif
-+
- xor %eax,%eax
- EXIT
- ENDPROC(__put_user_1)
-@@ -50,7 +63,19 @@ ENTRY(__put_user_2)
- sub $1,%_ASM_BX
- cmp %_ASM_BX,%_ASM_CX
- jae bad_put_user
-+
-+#ifdef CONFIG_X86_32
-+ pushl $(__USER_DS)
-+ popl %ds
-+#endif
-+
- 2: movw %ax,(%_ASM_CX)
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ popl %ds
-+#endif
-+
- xor %eax,%eax
- EXIT
- ENDPROC(__put_user_2)
-@@ -61,7 +86,19 @@ ENTRY(__put_user_4)
- sub $3,%_ASM_BX
- cmp %_ASM_BX,%_ASM_CX
- jae bad_put_user
-+
-+#ifdef CONFIG_X86_32
-+ pushl $(__USER_DS)
-+ popl %ds
-+#endif
-+
- 3: movl %eax,(%_ASM_CX)
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ popl %ds
-+#endif
-+
- xor %eax,%eax
- EXIT
- ENDPROC(__put_user_4)
-@@ -72,16 +109,34 @@ ENTRY(__put_user_8)
- sub $7,%_ASM_BX
- cmp %_ASM_BX,%_ASM_CX
- jae bad_put_user
-+
-+#ifdef CONFIG_X86_32
-+ pushl $(__USER_DS)
-+ popl %ds
-+#endif
-+
- 4: mov %_ASM_AX,(%_ASM_CX)
- #ifdef CONFIG_X86_32
- 5: movl %edx,4(%_ASM_CX)
- #endif
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ popl %ds
-+#endif
-+
- xor %eax,%eax
- EXIT
- ENDPROC(__put_user_8)
-
- bad_put_user:
- CFI_STARTPROC
-+
-+#ifdef CONFIG_X86_32
-+ pushl %ss
-+ popl %ds
-+#endif
-+
- movl $-EFAULT,%eax
- EXIT
- END(bad_put_user)
-diff -urNp linux-2.6.28.7/arch/x86/lib/usercopy_32.c linux-2.6.28.7/arch/x86/lib/usercopy_32.c
---- linux-2.6.28.7/arch/x86/lib/usercopy_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/lib/usercopy_32.c 2009-02-21 09:39:27.000000000 -0500
-@@ -36,31 +36,38 @@ static inline int __movsl_is_ok(unsigned
- * Copy a null terminated string from userspace.
- */
-
--#define __do_strncpy_from_user(dst, src, count, res) \
--do { \
-- int __d0, __d1, __d2; \
-- might_sleep(); \
-- __asm__ __volatile__( \
-- " testl %1,%1\n" \
-- " jz 2f\n" \
-- "0: lodsb\n" \
-- " stosb\n" \
-- " testb %%al,%%al\n" \
-- " jz 1f\n" \
-- " decl %1\n" \
-- " jnz 0b\n" \
-- "1: subl %1,%0\n" \
-- "2:\n" \
-- ".section .fixup,\"ax\"\n" \
-- "3: movl %5,%0\n" \
-- " jmp 2b\n" \
-- ".previous\n" \
-- _ASM_EXTABLE(0b,3b) \
-- : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \
-- "=&D" (__d2) \
-- : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
-- : "memory"); \
--} while (0)
-+static long __do_strncpy_from_user(char *dst, const char __user *src, long count)
-+{
-+ int __d0, __d1, __d2;
-+ long res = -EFAULT;
-+
-+ might_sleep();
-+ __asm__ __volatile__(
-+ " movw %w10,%%ds\n"
-+ " testl %1,%1\n"
-+ " jz 2f\n"
-+ "0: lodsb\n"
-+ " stosb\n"
-+ " testb %%al,%%al\n"
-+ " jz 1f\n"
-+ " decl %1\n"
-+ " jnz 0b\n"
-+ "1: subl %1,%0\n"
-+ "2:\n"
-+ " pushl %%ss\n"
-+ " popl %%ds\n"
-+ ".section .fixup,\"ax\"\n"
-+ "3: movl %5,%0\n"
-+ " jmp 2b\n"
-+ ".previous\n"
-+ _ASM_EXTABLE(0b,3b)
-+ : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1),
-+ "=&D" (__d2)
-+ : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst),
-+ "r"(__USER_DS)
-+ : "memory");
-+ return res;
-+}
-
- /**
- * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
-@@ -85,9 +92,7 @@ do { \
- long
- __strncpy_from_user(char *dst, const char __user *src, long count)
- {
-- long res;
-- __do_strncpy_from_user(dst, src, count, res);
-- return res;
-+ return __do_strncpy_from_user(dst, src, count);
- }
- EXPORT_SYMBOL(__strncpy_from_user);
-
-@@ -114,7 +119,7 @@ strncpy_from_user(char *dst, const char
- {
- long res = -EFAULT;
- if (access_ok(VERIFY_READ, src, 1))
-- __do_strncpy_from_user(dst, src, count, res);
-+ res = __do_strncpy_from_user(dst, src, count);
- return res;
- }
- EXPORT_SYMBOL(strncpy_from_user);
-@@ -123,24 +128,30 @@ EXPORT_SYMBOL(strncpy_from_user);
- * Zero Userspace
- */
-
--#define __do_clear_user(addr,size) \
--do { \
-- int __d0; \
-- might_sleep(); \
-- __asm__ __volatile__( \
-- "0: rep; stosl\n" \
-- " movl %2,%0\n" \
-- "1: rep; stosb\n" \
-- "2:\n" \
-- ".section .fixup,\"ax\"\n" \
-- "3: lea 0(%2,%0,4),%0\n" \
-- " jmp 2b\n" \
-- ".previous\n" \
-- _ASM_EXTABLE(0b,3b) \
-- _ASM_EXTABLE(1b,2b) \
-- : "=&c"(size), "=&D" (__d0) \
-- : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0)); \
--} while (0)
-+static unsigned long __do_clear_user(void __user *addr, unsigned long size)
-+{
-+ int __d0;
-+
-+ might_sleep();
-+ __asm__ __volatile__(
-+ " movw %w6,%%es\n"
-+ "0: rep; stosl\n"
-+ " movl %2,%0\n"
-+ "1: rep; stosb\n"
-+ "2:\n"
-+ " pushl %%ss\n"
-+ " popl %%es\n"
-+ ".section .fixup,\"ax\"\n"
-+ "3: lea 0(%2,%0,4),%0\n"
-+ " jmp 2b\n"
-+ ".previous\n"
-+ _ASM_EXTABLE(0b,3b)
-+ _ASM_EXTABLE(1b,2b)
-+ : "=&c"(size), "=&D" (__d0)
-+ : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0),
-+ "r"(__USER_DS));
-+ return size;
-+}
-
- /**
- * clear_user: - Zero a block of memory in user space.
-@@ -157,7 +168,7 @@ clear_user(void __user *to, unsigned lon
- {
- might_sleep();
- if (access_ok(VERIFY_WRITE, to, n))
-- __do_clear_user(to, n);
-+ n = __do_clear_user(to, n);
- return n;
- }
- EXPORT_SYMBOL(clear_user);
-@@ -176,8 +187,7 @@ EXPORT_SYMBOL(clear_user);
- unsigned long
- __clear_user(void __user *to, unsigned long n)
- {
-- __do_clear_user(to, n);
-- return n;
-+ return __do_clear_user(to, n);
- }
- EXPORT_SYMBOL(__clear_user);
-
-@@ -200,14 +210,17 @@ long strnlen_user(const char __user *s,
- might_sleep();
-
- __asm__ __volatile__(
-+ " movw %w8,%%es\n"
- " testl %0, %0\n"
- " jz 3f\n"
-- " andl %0,%%ecx\n"
-+ " movl %0,%%ecx\n"
- "0: repne; scasb\n"
- " setne %%al\n"
- " subl %%ecx,%0\n"
- " addl %0,%%eax\n"
- "1:\n"
-+ " pushl %%ss\n"
-+ " popl %%es\n"
- ".section .fixup,\"ax\"\n"
- "2: xorl %%eax,%%eax\n"
- " jmp 1b\n"
-@@ -219,7 +232,7 @@ long strnlen_user(const char __user *s,
- " .long 0b,2b\n"
- ".previous"
- :"=&r" (n), "=&D" (s), "=&a" (res), "=&c" (tmp)
-- :"0" (n), "1" (s), "2" (0), "3" (mask)
-+ :"0" (n), "1" (s), "2" (0), "3" (mask), "r" (__USER_DS)
- :"cc");
- return res & mask;
- }
-@@ -227,10 +240,11 @@ EXPORT_SYMBOL(strnlen_user);
-
- #ifdef CONFIG_X86_INTEL_USERCOPY
- static unsigned long
--__copy_user_intel(void __user *to, const void *from, unsigned long size)
-+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
- {
- int d0, d1;
- __asm__ __volatile__(
-+ " movw %w6, %%es\n"
- " .align 2,0x90\n"
- "1: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
-@@ -239,36 +253,36 @@ __copy_user_intel(void __user *to, const
- " .align 2,0x90\n"
- "3: movl 0(%4), %%eax\n"
- "4: movl 4(%4), %%edx\n"
-- "5: movl %%eax, 0(%3)\n"
-- "6: movl %%edx, 4(%3)\n"
-+ "5: movl %%eax, %%es:0(%3)\n"
-+ "6: movl %%edx, %%es:4(%3)\n"
- "7: movl 8(%4), %%eax\n"
- "8: movl 12(%4),%%edx\n"
-- "9: movl %%eax, 8(%3)\n"
-- "10: movl %%edx, 12(%3)\n"
-+ "9: movl %%eax, %%es:8(%3)\n"
-+ "10: movl %%edx, %%es:12(%3)\n"
- "11: movl 16(%4), %%eax\n"
- "12: movl 20(%4), %%edx\n"
-- "13: movl %%eax, 16(%3)\n"
-- "14: movl %%edx, 20(%3)\n"
-+ "13: movl %%eax, %%es:16(%3)\n"
-+ "14: movl %%edx, %%es:20(%3)\n"
- "15: movl 24(%4), %%eax\n"
- "16: movl 28(%4), %%edx\n"
-- "17: movl %%eax, 24(%3)\n"
-- "18: movl %%edx, 28(%3)\n"
-+ "17: movl %%eax, %%es:24(%3)\n"
-+ "18: movl %%edx, %%es:28(%3)\n"
- "19: movl 32(%4), %%eax\n"
- "20: movl 36(%4), %%edx\n"
-- "21: movl %%eax, 32(%3)\n"
-- "22: movl %%edx, 36(%3)\n"
-+ "21: movl %%eax, %%es:32(%3)\n"
-+ "22: movl %%edx, %%es:36(%3)\n"
- "23: movl 40(%4), %%eax\n"
- "24: movl 44(%4), %%edx\n"
-- "25: movl %%eax, 40(%3)\n"
-- "26: movl %%edx, 44(%3)\n"
-+ "25: movl %%eax, %%es:40(%3)\n"
-+ "26: movl %%edx, %%es:44(%3)\n"
- "27: movl 48(%4), %%eax\n"
- "28: movl 52(%4), %%edx\n"
-- "29: movl %%eax, 48(%3)\n"
-- "30: movl %%edx, 52(%3)\n"
-+ "29: movl %%eax, %%es:48(%3)\n"
-+ "30: movl %%edx, %%es:52(%3)\n"
- "31: movl 56(%4), %%eax\n"
- "32: movl 60(%4), %%edx\n"
-- "33: movl %%eax, 56(%3)\n"
-- "34: movl %%edx, 60(%3)\n"
-+ "33: movl %%eax, %%es:56(%3)\n"
-+ "34: movl %%edx, %%es:60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
-@@ -282,6 +296,8 @@ __copy_user_intel(void __user *to, const
- "36: movl %%eax, %0\n"
- "37: rep; movsb\n"
- "100:\n"
-+ " pushl %%ss\n"
-+ " popl %%es\n"
- ".section .fixup,\"ax\"\n"
- "101: lea 0(%%eax,%0,4),%0\n"
- " jmp 100b\n"
-@@ -328,7 +344,117 @@ __copy_user_intel(void __user *to, const
- " .long 99b,101b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
-- : "1"(to), "2"(from), "0"(size)
-+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
-+ : "eax", "edx", "memory");
-+ return size;
-+}
-+
-+static unsigned long
-+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
-+{
-+ int d0, d1;
-+ __asm__ __volatile__(
-+ " movw %w6, %%ds\n"
-+ " .align 2,0x90\n"
-+ "1: movl 32(%4), %%eax\n"
-+ " cmpl $67, %0\n"
-+ " jbe 3f\n"
-+ "2: movl 64(%4), %%eax\n"
-+ " .align 2,0x90\n"
-+ "3: movl 0(%4), %%eax\n"
-+ "4: movl 4(%4), %%edx\n"
-+ "5: movl %%eax, %%es:0(%3)\n"
-+ "6: movl %%edx, %%es:4(%3)\n"
-+ "7: movl 8(%4), %%eax\n"
-+ "8: movl 12(%4),%%edx\n"
-+ "9: movl %%eax, %%es:8(%3)\n"
-+ "10: movl %%edx, %%es:12(%3)\n"
-+ "11: movl 16(%4), %%eax\n"
-+ "12: movl 20(%4), %%edx\n"
-+ "13: movl %%eax, %%es:16(%3)\n"
-+ "14: movl %%edx, %%es:20(%3)\n"
-+ "15: movl 24(%4), %%eax\n"
-+ "16: movl 28(%4), %%edx\n"
-+ "17: movl %%eax, %%es:24(%3)\n"
-+ "18: movl %%edx, %%es:28(%3)\n"
-+ "19: movl 32(%4), %%eax\n"
-+ "20: movl 36(%4), %%edx\n"
-+ "21: movl %%eax, %%es:32(%3)\n"
-+ "22: movl %%edx, %%es:36(%3)\n"
-+ "23: movl 40(%4), %%eax\n"
-+ "24: movl 44(%4), %%edx\n"
-+ "25: movl %%eax, %%es:40(%3)\n"
-+ "26: movl %%edx, %%es:44(%3)\n"
-+ "27: movl 48(%4), %%eax\n"
-+ "28: movl 52(%4), %%edx\n"
-+ "29: movl %%eax, %%es:48(%3)\n"
-+ "30: movl %%edx, %%es:52(%3)\n"
-+ "31: movl 56(%4), %%eax\n"
-+ "32: movl 60(%4), %%edx\n"
-+ "33: movl %%eax, %%es:56(%3)\n"
-+ "34: movl %%edx, %%es:60(%3)\n"
-+ " addl $-64, %0\n"
-+ " addl $64, %4\n"
-+ " addl $64, %3\n"
-+ " cmpl $63, %0\n"
-+ " ja 1b\n"
-+ "35: movl %0, %%eax\n"
-+ " shrl $2, %0\n"
-+ " andl $3, %%eax\n"
-+ " cld\n"
-+ "99: rep; movsl\n"
-+ "36: movl %%eax, %0\n"
-+ "37: rep; movsb\n"
-+ "100:\n"
-+ " pushl %%ss\n"
-+ " popl %%ds\n"
-+ ".section .fixup,\"ax\"\n"
-+ "101: lea 0(%%eax,%0,4),%0\n"
-+ " jmp 100b\n"
-+ ".previous\n"
-+ ".section __ex_table,\"a\"\n"
-+ " .align 4\n"
-+ " .long 1b,100b\n"
-+ " .long 2b,100b\n"
-+ " .long 3b,100b\n"
-+ " .long 4b,100b\n"
-+ " .long 5b,100b\n"
-+ " .long 6b,100b\n"
-+ " .long 7b,100b\n"
-+ " .long 8b,100b\n"
-+ " .long 9b,100b\n"
-+ " .long 10b,100b\n"
-+ " .long 11b,100b\n"
-+ " .long 12b,100b\n"
-+ " .long 13b,100b\n"
-+ " .long 14b,100b\n"
-+ " .long 15b,100b\n"
-+ " .long 16b,100b\n"
-+ " .long 17b,100b\n"
-+ " .long 18b,100b\n"
-+ " .long 19b,100b\n"
-+ " .long 20b,100b\n"
-+ " .long 21b,100b\n"
-+ " .long 22b,100b\n"
-+ " .long 23b,100b\n"
-+ " .long 24b,100b\n"
-+ " .long 25b,100b\n"
-+ " .long 26b,100b\n"
-+ " .long 27b,100b\n"
-+ " .long 28b,100b\n"
-+ " .long 29b,100b\n"
-+ " .long 30b,100b\n"
-+ " .long 31b,100b\n"
-+ " .long 32b,100b\n"
-+ " .long 33b,100b\n"
-+ " .long 34b,100b\n"
-+ " .long 35b,100b\n"
-+ " .long 36b,100b\n"
-+ " .long 37b,100b\n"
-+ " .long 99b,101b\n"
-+ ".previous"
-+ : "=&c"(size), "=&D" (d0), "=&S" (d1)
-+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
- : "eax", "edx", "memory");
- return size;
- }
-@@ -338,6 +464,7 @@ __copy_user_zeroing_intel(void *to, cons
- {
- int d0, d1;
- __asm__ __volatile__(
-+ " movw %w6, %%ds\n"
- " .align 2,0x90\n"
- "0: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
-@@ -346,36 +473,36 @@ __copy_user_zeroing_intel(void *to, cons
- " .align 2,0x90\n"
- "2: movl 0(%4), %%eax\n"
- "21: movl 4(%4), %%edx\n"
-- " movl %%eax, 0(%3)\n"
-- " movl %%edx, 4(%3)\n"
-+ " movl %%eax, %%es:0(%3)\n"
-+ " movl %%edx, %%es:4(%3)\n"
- "3: movl 8(%4), %%eax\n"
- "31: movl 12(%4),%%edx\n"
-- " movl %%eax, 8(%3)\n"
-- " movl %%edx, 12(%3)\n"
-+ " movl %%eax, %%es:8(%3)\n"
-+ " movl %%edx, %%es:12(%3)\n"
- "4: movl 16(%4), %%eax\n"
- "41: movl 20(%4), %%edx\n"
-- " movl %%eax, 16(%3)\n"
-- " movl %%edx, 20(%3)\n"
-+ " movl %%eax, %%es:16(%3)\n"
-+ " movl %%edx, %%es:20(%3)\n"
- "10: movl 24(%4), %%eax\n"
- "51: movl 28(%4), %%edx\n"
-- " movl %%eax, 24(%3)\n"
-- " movl %%edx, 28(%3)\n"
-+ " movl %%eax, %%es:24(%3)\n"
-+ " movl %%edx, %%es:28(%3)\n"
- "11: movl 32(%4), %%eax\n"
- "61: movl 36(%4), %%edx\n"
-- " movl %%eax, 32(%3)\n"
-- " movl %%edx, 36(%3)\n"
-+ " movl %%eax, %%es:32(%3)\n"
-+ " movl %%edx, %%es:36(%3)\n"
- "12: movl 40(%4), %%eax\n"
- "71: movl 44(%4), %%edx\n"
-- " movl %%eax, 40(%3)\n"
-- " movl %%edx, 44(%3)\n"
-+ " movl %%eax, %%es:40(%3)\n"
-+ " movl %%edx, %%es:44(%3)\n"
- "13: movl 48(%4), %%eax\n"
- "81: movl 52(%4), %%edx\n"
-- " movl %%eax, 48(%3)\n"
-- " movl %%edx, 52(%3)\n"
-+ " movl %%eax, %%es:48(%3)\n"
-+ " movl %%edx, %%es:52(%3)\n"
- "14: movl 56(%4), %%eax\n"
- "91: movl 60(%4), %%edx\n"
-- " movl %%eax, 56(%3)\n"
-- " movl %%edx, 60(%3)\n"
-+ " movl %%eax, %%es:56(%3)\n"
-+ " movl %%edx, %%es:60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
-@@ -389,6 +516,8 @@ __copy_user_zeroing_intel(void *to, cons
- " movl %%eax,%0\n"
- "7: rep; movsb\n"
- "8:\n"
-+ " pushl %%ss\n"
-+ " popl %%ds\n"
- ".section .fixup,\"ax\"\n"
- "9: lea 0(%%eax,%0,4),%0\n"
- "16: pushl %0\n"
-@@ -423,7 +552,7 @@ __copy_user_zeroing_intel(void *to, cons
- " .long 7b,16b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
-- : "1"(to), "2"(from), "0"(size)
-+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
- : "eax", "edx", "memory");
- return size;
- }
-@@ -439,6 +568,7 @@ static unsigned long __copy_user_zeroing
- int d0, d1;
-
- __asm__ __volatile__(
-+ " movw %w6, %%ds\n"
- " .align 2,0x90\n"
- "0: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
-@@ -447,36 +577,36 @@ static unsigned long __copy_user_zeroing
- " .align 2,0x90\n"
- "2: movl 0(%4), %%eax\n"
- "21: movl 4(%4), %%edx\n"
-- " movnti %%eax, 0(%3)\n"
-- " movnti %%edx, 4(%3)\n"
-+ " movnti %%eax, %%es:0(%3)\n"
-+ " movnti %%edx, %%es:4(%3)\n"
- "3: movl 8(%4), %%eax\n"
- "31: movl 12(%4),%%edx\n"
-- " movnti %%eax, 8(%3)\n"
-- " movnti %%edx, 12(%3)\n"
-+ " movnti %%eax, %%es:8(%3)\n"
-+ " movnti %%edx, %%es:12(%3)\n"
- "4: movl 16(%4), %%eax\n"
- "41: movl 20(%4), %%edx\n"
-- " movnti %%eax, 16(%3)\n"
-- " movnti %%edx, 20(%3)\n"
-+ " movnti %%eax, %%es:16(%3)\n"
-+ " movnti %%edx, %%es:20(%3)\n"
- "10: movl 24(%4), %%eax\n"
- "51: movl 28(%4), %%edx\n"
-- " movnti %%eax, 24(%3)\n"
-- " movnti %%edx, 28(%3)\n"
-+ " movnti %%eax, %%es:24(%3)\n"
-+ " movnti %%edx, %%es:28(%3)\n"
- "11: movl 32(%4), %%eax\n"
- "61: movl 36(%4), %%edx\n"
-- " movnti %%eax, 32(%3)\n"
-- " movnti %%edx, 36(%3)\n"
-+ " movnti %%eax, %%es:32(%3)\n"
-+ " movnti %%edx, %%es:36(%3)\n"
- "12: movl 40(%4), %%eax\n"
- "71: movl 44(%4), %%edx\n"
-- " movnti %%eax, 40(%3)\n"
-- " movnti %%edx, 44(%3)\n"
-+ " movnti %%eax, %%es:40(%3)\n"
-+ " movnti %%edx, %%es:44(%3)\n"
- "13: movl 48(%4), %%eax\n"
- "81: movl 52(%4), %%edx\n"
-- " movnti %%eax, 48(%3)\n"
-- " movnti %%edx, 52(%3)\n"
-+ " movnti %%eax, %%es:48(%3)\n"
-+ " movnti %%edx, %%es:52(%3)\n"
- "14: movl 56(%4), %%eax\n"
- "91: movl 60(%4), %%edx\n"
-- " movnti %%eax, 56(%3)\n"
-- " movnti %%edx, 60(%3)\n"
-+ " movnti %%eax, %%es:56(%3)\n"
-+ " movnti %%edx, %%es:60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
-@@ -491,6 +621,8 @@ static unsigned long __copy_user_zeroing
- " movl %%eax,%0\n"
- "7: rep; movsb\n"
- "8:\n"
-+ " pushl %%ss\n"
-+ " popl %%ds\n"
- ".section .fixup,\"ax\"\n"
- "9: lea 0(%%eax,%0,4),%0\n"
- "16: pushl %0\n"
-@@ -525,7 +657,7 @@ static unsigned long __copy_user_zeroing
- " .long 7b,16b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
-- : "1"(to), "2"(from), "0"(size)
-+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
- : "eax", "edx", "memory");
- return size;
- }
-@@ -536,6 +668,7 @@ static unsigned long __copy_user_intel_n
- int d0, d1;
-
- __asm__ __volatile__(
-+ " movw %w6, %%ds\n"
- " .align 2,0x90\n"
- "0: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
-@@ -544,36 +677,36 @@ static unsigned long __copy_user_intel_n
- " .align 2,0x90\n"
- "2: movl 0(%4), %%eax\n"
- "21: movl 4(%4), %%edx\n"
-- " movnti %%eax, 0(%3)\n"
-- " movnti %%edx, 4(%3)\n"
-+ " movnti %%eax, %%es:0(%3)\n"
-+ " movnti %%edx, %%es:4(%3)\n"
- "3: movl 8(%4), %%eax\n"
- "31: movl 12(%4),%%edx\n"
-- " movnti %%eax, 8(%3)\n"
-- " movnti %%edx, 12(%3)\n"
-+ " movnti %%eax, %%es:8(%3)\n"
-+ " movnti %%edx, %%es:12(%3)\n"
- "4: movl 16(%4), %%eax\n"
- "41: movl 20(%4), %%edx\n"
-- " movnti %%eax, 16(%3)\n"
-- " movnti %%edx, 20(%3)\n"
-+ " movnti %%eax, %%es:16(%3)\n"
-+ " movnti %%edx, %%es:20(%3)\n"
- "10: movl 24(%4), %%eax\n"
- "51: movl 28(%4), %%edx\n"
-- " movnti %%eax, 24(%3)\n"
-- " movnti %%edx, 28(%3)\n"
-+ " movnti %%eax, %%es:24(%3)\n"
-+ " movnti %%edx, %%es:28(%3)\n"
- "11: movl 32(%4), %%eax\n"
- "61: movl 36(%4), %%edx\n"
-- " movnti %%eax, 32(%3)\n"
-- " movnti %%edx, 36(%3)\n"
-+ " movnti %%eax, %%es:32(%3)\n"
-+ " movnti %%edx, %%es:36(%3)\n"
- "12: movl 40(%4), %%eax\n"
- "71: movl 44(%4), %%edx\n"
-- " movnti %%eax, 40(%3)\n"
-- " movnti %%edx, 44(%3)\n"
-+ " movnti %%eax, %%es:40(%3)\n"
-+ " movnti %%edx, %%es:44(%3)\n"
- "13: movl 48(%4), %%eax\n"
- "81: movl 52(%4), %%edx\n"
-- " movnti %%eax, 48(%3)\n"
-- " movnti %%edx, 52(%3)\n"
-+ " movnti %%eax, %%es:48(%3)\n"
-+ " movnti %%edx, %%es:52(%3)\n"
- "14: movl 56(%4), %%eax\n"
- "91: movl 60(%4), %%edx\n"
-- " movnti %%eax, 56(%3)\n"
-- " movnti %%edx, 60(%3)\n"
-+ " movnti %%eax, %%es:56(%3)\n"
-+ " movnti %%edx, %%es:60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
-@@ -588,6 +721,8 @@ static unsigned long __copy_user_intel_n
- " movl %%eax,%0\n"
- "7: rep; movsb\n"
- "8:\n"
-+ " pushl %%ss\n"
-+ " popl %%ds\n"
- ".section .fixup,\"ax\"\n"
- "9: lea 0(%%eax,%0,4),%0\n"
- "16: jmp 8b\n"
-@@ -616,7 +751,7 @@ static unsigned long __copy_user_intel_n
- " .long 7b,16b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
-- : "1"(to), "2"(from), "0"(size)
-+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
- : "eax", "edx", "memory");
- return size;
- }
-@@ -629,90 +764,146 @@ static unsigned long __copy_user_intel_n
- */
- unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
- unsigned long size);
--unsigned long __copy_user_intel(void __user *to, const void *from,
-+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
-+ unsigned long size);
-+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
- unsigned long size);
- unsigned long __copy_user_zeroing_intel_nocache(void *to,
- const void __user *from, unsigned long size);
- #endif /* CONFIG_X86_INTEL_USERCOPY */
-
- /* Generic arbitrary sized copy. */
--#define __copy_user(to, from, size) \
--do { \
-- int __d0, __d1, __d2; \
-- __asm__ __volatile__( \
-- " cmp $7,%0\n" \
-- " jbe 1f\n" \
-- " movl %1,%0\n" \
-- " negl %0\n" \
-- " andl $7,%0\n" \
-- " subl %0,%3\n" \
-- "4: rep; movsb\n" \
-- " movl %3,%0\n" \
-- " shrl $2,%0\n" \
-- " andl $3,%3\n" \
-- " .align 2,0x90\n" \
-- "0: rep; movsl\n" \
-- " movl %3,%0\n" \
-- "1: rep; movsb\n" \
-- "2:\n" \
-- ".section .fixup,\"ax\"\n" \
-- "5: addl %3,%0\n" \
-- " jmp 2b\n" \
-- "3: lea 0(%3,%0,4),%0\n" \
-- " jmp 2b\n" \
-- ".previous\n" \
-- ".section __ex_table,\"a\"\n" \
-- " .align 4\n" \
-- " .long 4b,5b\n" \
-- " .long 0b,3b\n" \
-- " .long 1b,2b\n" \
-- ".previous" \
-- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \
-- : "3"(size), "0"(size), "1"(to), "2"(from) \
-- : "memory"); \
--} while (0)
--
--#define __copy_user_zeroing(to, from, size) \
--do { \
-- int __d0, __d1, __d2; \
-- __asm__ __volatile__( \
-- " cmp $7,%0\n" \
-- " jbe 1f\n" \
-- " movl %1,%0\n" \
-- " negl %0\n" \
-- " andl $7,%0\n" \
-- " subl %0,%3\n" \
-- "4: rep; movsb\n" \
-- " movl %3,%0\n" \
-- " shrl $2,%0\n" \
-- " andl $3,%3\n" \
-- " .align 2,0x90\n" \
-- "0: rep; movsl\n" \
-- " movl %3,%0\n" \
-- "1: rep; movsb\n" \
-- "2:\n" \
-- ".section .fixup,\"ax\"\n" \
-- "5: addl %3,%0\n" \
-- " jmp 6f\n" \
-- "3: lea 0(%3,%0,4),%0\n" \
-- "6: pushl %0\n" \
-- " pushl %%eax\n" \
-- " xorl %%eax,%%eax\n" \
-- " rep; stosb\n" \
-- " popl %%eax\n" \
-- " popl %0\n" \
-- " jmp 2b\n" \
-- ".previous\n" \
-- ".section __ex_table,\"a\"\n" \
-- " .align 4\n" \
-- " .long 4b,5b\n" \
-- " .long 0b,3b\n" \
-- " .long 1b,6b\n" \
-- ".previous" \
-- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \
-- : "3"(size), "0"(size), "1"(to), "2"(from) \
-- : "memory"); \
--} while (0)
-+static unsigned long
-+__generic_copy_to_user(void __user *to, const void *from, unsigned long size)
-+{
-+ int __d0, __d1, __d2;
-+
-+ __asm__ __volatile__(
-+ " movw %w8,%%es\n"
-+ " cmp $7,%0\n"
-+ " jbe 1f\n"
-+ " movl %1,%0\n"
-+ " negl %0\n"
-+ " andl $7,%0\n"
-+ " subl %0,%3\n"
-+ "4: rep; movsb\n"
-+ " movl %3,%0\n"
-+ " shrl $2,%0\n"
-+ " andl $3,%3\n"
-+ " .align 2,0x90\n"
-+ "0: rep; movsl\n"
-+ " movl %3,%0\n"
-+ "1: rep; movsb\n"
-+ "2:\n"
-+ " pushl %%ss\n"
-+ " popl %%es\n"
-+ ".section .fixup,\"ax\"\n"
-+ "5: addl %3,%0\n"
-+ " jmp 2b\n"
-+ "3: lea 0(%3,%0,4),%0\n"
-+ " jmp 2b\n"
-+ ".previous\n"
-+ ".section __ex_table,\"a\"\n"
-+ " .align 4\n"
-+ " .long 4b,5b\n"
-+ " .long 0b,3b\n"
-+ " .long 1b,2b\n"
-+ ".previous"
-+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2)
-+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS)
-+ : "memory");
-+ return size;
-+}
-+
-+static unsigned long
-+__generic_copy_from_user(void *to, const void __user *from, unsigned long size)
-+{
-+ int __d0, __d1, __d2;
-+
-+ __asm__ __volatile__(
-+ " movw %w8,%%ds\n"
-+ " cmp $7,%0\n"
-+ " jbe 1f\n"
-+ " movl %1,%0\n"
-+ " negl %0\n"
-+ " andl $7,%0\n"
-+ " subl %0,%3\n"
-+ "4: rep; movsb\n"
-+ " movl %3,%0\n"
-+ " shrl $2,%0\n"
-+ " andl $3,%3\n"
-+ " .align 2,0x90\n"
-+ "0: rep; movsl\n"
-+ " movl %3,%0\n"
-+ "1: rep; movsb\n"
-+ "2:\n"
-+ " pushl %%ss\n"
-+ " popl %%ds\n"
-+ ".section .fixup,\"ax\"\n"
-+ "5: addl %3,%0\n"
-+ " jmp 2b\n"
-+ "3: lea 0(%3,%0,4),%0\n"
-+ " jmp 2b\n"
-+ ".previous\n"
-+ ".section __ex_table,\"a\"\n"
-+ " .align 4\n"
-+ " .long 4b,5b\n"
-+ " .long 0b,3b\n"
-+ " .long 1b,2b\n"
-+ ".previous"
-+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2)
-+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS)
-+ : "memory");
-+ return size;
-+}
-+
-+static unsigned long
-+__copy_user_zeroing(void *to, const void __user *from, unsigned long size)
-+{
-+ int __d0, __d1, __d2;
-+
-+ __asm__ __volatile__(
-+ " movw %w8,%%ds\n"
-+ " cmp $7,%0\n"
-+ " jbe 1f\n"
-+ " movl %1,%0\n"
-+ " negl %0\n"
-+ " andl $7,%0\n"
-+ " subl %0,%3\n"
-+ "4: rep; movsb\n"
-+ " movl %3,%0\n"
-+ " shrl $2,%0\n"
-+ " andl $3,%3\n"
-+ " .align 2,0x90\n"
-+ "0: rep; movsl\n"
-+ " movl %3,%0\n"
-+ "1: rep; movsb\n"
-+ "2:\n"
-+ " pushl %%ss\n"
-+ " popl %%ds\n"
-+ ".section .fixup,\"ax\"\n"
-+ "5: addl %3,%0\n"
-+ " jmp 6f\n"
-+ "3: lea 0(%3,%0,4),%0\n"
-+ "6: pushl %0\n"
-+ " pushl %%eax\n"
-+ " xorl %%eax,%%eax\n"
-+ " rep; stosb\n"
-+ " popl %%eax\n"
-+ " popl %0\n"
-+ " jmp 2b\n"
-+ ".previous\n"
-+ ".section __ex_table,\"a\"\n"
-+ " .align 4\n"
-+ " .long 4b,5b\n"
-+ " .long 0b,3b\n"
-+ " .long 1b,6b\n"
-+ ".previous"
-+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2)
-+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS)
-+ : "memory");
-+ return size;
-+}
-
- unsigned long __copy_to_user_ll(void __user *to, const void *from,
- unsigned long n)
-@@ -775,9 +966,9 @@ survive:
- }
- #endif
- if (movsl_is_ok(to, from, n))
-- __copy_user(to, from, n);
-+ n = __generic_copy_to_user(to, from, n);
- else
-- n = __copy_user_intel(to, from, n);
-+ n = __generic_copy_to_user_intel(to, from, n);
- return n;
- }
- EXPORT_SYMBOL(__copy_to_user_ll);
-@@ -786,7 +977,7 @@ unsigned long __copy_from_user_ll(void *
- unsigned long n)
- {
- if (movsl_is_ok(to, from, n))
-- __copy_user_zeroing(to, from, n);
-+ n = __copy_user_zeroing(to, from, n);
- else
- n = __copy_user_zeroing_intel(to, from, n);
- return n;
-@@ -797,10 +988,9 @@ unsigned long __copy_from_user_ll_nozero
- unsigned long n)
- {
- if (movsl_is_ok(to, from, n))
-- __copy_user(to, from, n);
-+ n = __generic_copy_from_user(to, from, n);
- else
-- n = __copy_user_intel((void __user *)to,
-- (const void *)from, n);
-+ n = __generic_copy_from_user_intel(to, from, n);
- return n;
- }
- EXPORT_SYMBOL(__copy_from_user_ll_nozero);
-@@ -812,9 +1002,9 @@ unsigned long __copy_from_user_ll_nocach
- if (n > 64 && cpu_has_xmm2)
- n = __copy_user_zeroing_intel_nocache(to, from, n);
- else
-- __copy_user_zeroing(to, from, n);
-+ n = __copy_user_zeroing(to, from, n);
- #else
-- __copy_user_zeroing(to, from, n);
-+ n = __copy_user_zeroing(to, from, n);
- #endif
- return n;
- }
-@@ -827,9 +1017,9 @@ unsigned long __copy_from_user_ll_nocach
- if (n > 64 && cpu_has_xmm2)
- n = __copy_user_intel_nocache(to, from, n);
- else
-- __copy_user(to, from, n);
-+ n = __generic_copy_from_user(to, from, n);
- #else
-- __copy_user(to, from, n);
-+ n = __generic_copy_from_user(to, from, n);
- #endif
- return n;
- }
-@@ -878,8 +1068,35 @@ copy_from_user(void *to, const void __us
- {
- if (access_ok(VERIFY_READ, from, n))
- n = __copy_from_user(to, from, n);
-- else
-+ else if ((long)n > 0)
- memset(to, 0, n);
- return n;
- }
- EXPORT_SYMBOL(copy_from_user);
-+
-+#ifdef CONFIG_PAX_MEMORY_UDEREF
-+void __set_fs(mm_segment_t x, int cpu)
-+{
-+ unsigned long limit = x.seg;
-+ struct desc_struct d;
-+
-+ current_thread_info()->addr_limit = x;
-+ if (likely(limit))
-+ limit = (limit - 1UL) >> PAGE_SHIFT;
-+ pack_descriptor(&d, 0UL, limit, 0xF3, 0xC);
-+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_DS, &d, DESCTYPE_S);
-+}
-+
-+void set_fs(mm_segment_t x)
-+{
-+ __set_fs(x, get_cpu());
-+ put_cpu_no_resched();
-+}
-+#else
-+void set_fs(mm_segment_t x)
-+{
-+ current_thread_info()->addr_limit = x;
-+}
-+#endif
-+
-+EXPORT_SYMBOL(set_fs);
-diff -urNp linux-2.6.28.7/arch/x86/mach-voyager/voyager_basic.c linux-2.6.28.7/arch/x86/mach-voyager/voyager_basic.c
---- linux-2.6.28.7/arch/x86/mach-voyager/voyager_basic.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mach-voyager/voyager_basic.c 2009-02-21 09:37:48.000000000 -0500
-@@ -123,7 +123,7 @@ int __init voyager_memory_detect(int reg
- __u8 cmos[4];
- ClickMap_t *map;
- unsigned long map_addr;
-- unsigned long old;
-+ pte_t old;
-
- if (region >= CLICK_ENTRIES) {
- printk("Voyager: Illegal ClickMap region %d\n", region);
-@@ -138,7 +138,7 @@ int __init voyager_memory_detect(int reg
-
- /* steal page 0 for this */
- old = pg0[0];
-- pg0[0] = ((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT);
-+ pg0[0] = __pte((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT);
- local_flush_tlb();
- /* now clear everything out but page 0 */
- map = (ClickMap_t *) (map_addr & (~PAGE_MASK));
-diff -urNp linux-2.6.28.7/arch/x86/mach-voyager/voyager_smp.c linux-2.6.28.7/arch/x86/mach-voyager/voyager_smp.c
---- linux-2.6.28.7/arch/x86/mach-voyager/voyager_smp.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mach-voyager/voyager_smp.c 2009-02-21 09:37:48.000000000 -0500
-@@ -521,6 +521,10 @@ static void __init do_boot_cpu(__u8 cpu)
- __u32 *hijack_vector;
- __u32 start_phys_address = setup_trampoline();
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- /* There's a clever trick to this: The linux trampoline is
- * compiled to begin at absolute location zero, so make the
- * address zero but have the data segment selector compensate
-@@ -540,7 +544,17 @@ static void __init do_boot_cpu(__u8 cpu)
-
- init_gdt(cpu);
- per_cpu(current_task, cpu) = idle;
-- early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ early_gdt_descr.address = get_cpu_gdt_table(cpu);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- irq_ctx_init(cpu);
-
- /* Note: Don't modify initial ss override */
-@@ -1154,7 +1168,7 @@ void smp_local_timer_interrupt(void)
- per_cpu(prof_counter, cpu);
- }
-
-- update_process_times(user_mode_vm(get_irq_regs()));
-+ update_process_times(user_mode(get_irq_regs()));
- }
-
- if (((1 << cpu) & voyager_extended_vic_processors) == 0)
-diff -urNp linux-2.6.28.7/arch/x86/Makefile linux-2.6.28.7/arch/x86/Makefile
---- linux-2.6.28.7/arch/x86/Makefile 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/Makefile 2009-02-21 09:37:48.000000000 -0500
-@@ -232,3 +232,12 @@ endef
- CLEAN_FILES += arch/x86/boot/fdimage \
- arch/x86/boot/image.iso \
- arch/x86/boot/mtools.conf
-+
-+define OLD_LD
-+
-+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
-+*** Please upgrade your binutils to 2.18 or newer
-+endef
-+
-+archprepare:
-+ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
-diff -urNp linux-2.6.28.7/arch/x86/mm/extable.c linux-2.6.28.7/arch/x86/mm/extable.c
---- linux-2.6.28.7/arch/x86/mm/extable.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/extable.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1,14 +1,62 @@
- #include <linux/module.h>
- #include <linux/spinlock.h>
-+#include <linux/sort.h>
- #include <asm/uaccess.h>
-
-+/*
-+ * The exception table needs to be sorted so that the binary
-+ * search that we use to find entries in it works properly.
-+ * This is used both for the kernel exception table and for
-+ * the exception tables of modules that get loaded.
-+ */
-+static int cmp_ex(const void *a, const void *b)
-+{
-+ const struct exception_table_entry *x = a, *y = b;
-+
-+ /* avoid overflow */
-+ if (x->insn > y->insn)
-+ return 1;
-+ if (x->insn < y->insn)
-+ return -1;
-+ return 0;
-+}
-+
-+static void swap_ex(void *a, void *b, int size)
-+{
-+ struct exception_table_entry t, *x = a, *y = b;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
-+ t = *x;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ *x = *y;
-+ *y = t;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+}
-+
-+void sort_extable(struct exception_table_entry *start,
-+ struct exception_table_entry *finish)
-+{
-+ sort(start, finish - start, sizeof(struct exception_table_entry),
-+ cmp_ex, swap_ex);
-+}
-
- int fixup_exception(struct pt_regs *regs)
- {
- const struct exception_table_entry *fixup;
-
- #ifdef CONFIG_PNPBIOS
-- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
-+ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
- extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
- extern u32 pnp_bios_is_utter_crap;
- pnp_bios_is_utter_crap = 1;
-diff -urNp linux-2.6.28.7/arch/x86/mm/fault.c linux-2.6.28.7/arch/x86/mm/fault.c
---- linux-2.6.28.7/arch/x86/mm/fault.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
-@@ -26,6 +26,8 @@
- #include <linux/kprobes.h>
- #include <linux/uaccess.h>
- #include <linux/kdebug.h>
-+#include <linux/unistd.h>
-+#include <linux/compiler.h>
-
- #include <asm/system.h>
- #include <asm/desc.h>
-@@ -67,7 +69,7 @@ static inline int notify_page_fault(stru
- int ret = 0;
-
- /* kprobe_running() needs smp_processor_id() */
-- if (!user_mode_vm(regs)) {
-+ if (!user_mode(regs)) {
- preempt_disable();
- if (kprobe_running() && kprobe_fault_handler(regs, 14))
- ret = 1;
-@@ -265,6 +267,30 @@ bad:
- #endif
- }
-
-+#ifdef CONFIG_PAX_EMUTRAMP
-+static int pax_handle_fetch_fault(struct pt_regs *regs);
-+#endif
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
-+{
-+ pgd_t *pgd;
-+ pud_t *pud;
-+ pmd_t *pmd;
-+
-+ pgd = pgd_offset(mm, address);
-+ if (!pgd_present(*pgd))
-+ return NULL;
-+ pud = pud_offset(pgd, address);
-+ if (!pud_present(*pud))
-+ return NULL;
-+ pmd = pmd_offset(pud, address);
-+ if (!pmd_present(*pmd))
-+ return NULL;
-+ return pmd;
-+}
-+#endif
-+
- #ifdef CONFIG_X86_32
- static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
- {
-@@ -351,7 +377,7 @@ static int is_errata93(struct pt_regs *r
- static int is_errata100(struct pt_regs *regs, unsigned long address)
- {
- #ifdef CONFIG_X86_64
-- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
-+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) &&
- (address >> 32))
- return 1;
- #endif
-@@ -386,14 +412,31 @@ static void show_fault_oops(struct pt_re
- #endif
-
- #ifdef CONFIG_X86_PAE
-- if (error_code & PF_INSTR) {
-+ if (nx_enabled && (error_code & PF_INSTR)) {
- unsigned int level;
- pte_t *pte = lookup_address(address, &level);
-
- if (pte && pte_present(*pte) && !pte_exec(*pte))
- printk(KERN_CRIT "kernel tried to execute "
- "NX-protected page - exploit attempt? "
-- "(uid: %d)\n", current->uid);
-+ "(uid: %d, task: %s, pid: %d)\n",
-+ current->uid, current->comm, task_pid_nr(current));
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+#ifdef CONFIG_MODULES
-+ if (init_mm.start_code <= address && address < (unsigned long)MODULES_END)
-+#else
-+ if (init_mm.start_code <= address && address < init_mm.end_code)
-+#endif
-+ {
-+ if (current->signal->curr_ip)
-+ printk(KERN_ERR "PAX: From %u.%u.%u.%u: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
-+ NIPQUAD(current->signal->curr_ip), current->comm, task_pid_nr(current), current->uid, current->euid);
-+ else
-+ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
-+ current->comm, task_pid_nr(current), current->uid, current->euid);
- }
- #endif
-
-@@ -585,20 +628,26 @@ void __kprobes do_page_fault(struct pt_r
- struct task_struct *tsk;
- struct mm_struct *mm;
- struct vm_area_struct *vma;
-- unsigned long address;
- int write, si_code;
- int fault;
- #ifdef CONFIG_X86_64
- unsigned long flags;
- #endif
-
-+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
-+ pte_t *pte;
-+ pmd_t *pmd;
-+ spinlock_t *ptl;
-+ unsigned char pte_mask;
-+#endif
-+
-+ /* get the address */
-+ const unsigned long address = read_cr2();
-+
- tsk = current;
- mm = tsk->mm;
- prefetchw(&mm->mmap_sem);
-
-- /* get the address */
-- address = read_cr2();
--
- si_code = SEGV_MAPERR;
-
- if (unlikely(kmmio_fault(regs, address)))
-@@ -651,7 +700,7 @@ void __kprobes do_page_fault(struct pt_r
- * User-mode registers count as a user access even for any
- * potential system fault or CPU buglet.
- */
-- if (user_mode_vm(regs)) {
-+ if (user_mode(regs)) {
- local_irq_enable();
- error_code |= PF_USER;
- } else if (regs->flags & X86_EFLAGS_IF)
-@@ -667,7 +716,7 @@ void __kprobes do_page_fault(struct pt_r
- * atomic region then we must not take the fault.
- */
- if (unlikely(in_atomic() || !mm))
-- goto bad_area_nosemaphore;
-+ goto bad_area_nopax;
-
- again:
- /*
-@@ -689,10 +738,104 @@ again:
- if (!down_read_trylock(&mm->mmap_sem)) {
- if ((error_code & PF_USER) == 0 &&
- !search_exception_tables(regs->ip))
-- goto bad_area_nosemaphore;
-+ goto bad_area_nopax;
- down_read(&mm->mmap_sem);
- }
-
-+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
-+ if (nx_enabled || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
-+ !(mm->pax_flags & MF_PAX_PAGEEXEC))
-+ goto not_pax_fault;
-+
-+ /* PaX: it's our fault, let's handle it if we can */
-+
-+ /* PaX: take a look at read faults before acquiring any locks */
-+ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
-+ /* instruction fetch attempt from a protected page in user mode */
-+ up_read(&mm->mmap_sem);
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ switch (pax_handle_fetch_fault(regs)) {
-+ case 2:
-+ return;
-+ }
-+#endif
-+
-+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
-+ do_group_exit(SIGKILL);
-+ }
-+
-+ pmd = pax_get_pmd(mm, address);
-+ if (unlikely(!pmd))
-+ goto not_pax_fault;
-+
-+ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
-+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
-+ pte_unmap_unlock(pte, ptl);
-+ goto not_pax_fault;
-+ }
-+
-+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
-+ /* write attempt to a protected page in user mode */
-+ pte_unmap_unlock(pte, ptl);
-+ goto not_pax_fault;
-+ }
-+
-+#ifdef CONFIG_SMP
-+ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask)))
-+#else
-+ if (likely(address > get_limit(regs->cs)))
-+#endif
-+ {
-+ set_pte(pte, pte_mkread(*pte));
-+ __flush_tlb_one(address);
-+ pte_unmap_unlock(pte, ptl);
-+ up_read(&mm->mmap_sem);
-+ return;
-+ }
-+
-+ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
-+
-+ /*
-+ * PaX: fill DTLB with user rights and retry
-+ */
-+ __asm__ __volatile__ (
-+#ifdef CONFIG_PAX_MEMORY_UDEREF
-+ "movw %w4,%%es\n"
-+#endif
-+ "orb %2,(%1)\n"
-+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
-+/*
-+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
-+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
-+ * page fault when examined during a TLB load attempt. this is true not only
-+ * for PTEs holding a non-present entry but also present entries that will
-+ * raise a page fault (such as those set up by PaX, or the copy-on-write
-+ * mechanism). in effect it means that we do *not* need to flush the TLBs
-+ * for our target pages since their PTEs are simply not in the TLBs at all.
-+
-+ * the best thing in omitting it is that we gain around 15-20% speed in the
-+ * fast path of the page fault handler and can get rid of tracing since we
-+ * can no longer flush unintended entries.
-+ */
-+ "invlpg (%0)\n"
-+#endif
-+ "testb $0,%%es:(%0)\n"
-+ "xorb %3,(%1)\n"
-+#ifdef CONFIG_PAX_MEMORY_UDEREF
-+ "pushl %%ss\n"
-+ "popl %%es\n"
-+#endif
-+ :
-+ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER), "r" (__USER_DS)
-+ : "memory", "cc");
-+ pte_unmap_unlock(pte, ptl);
-+ up_read(&mm->mmap_sem);
-+ return;
-+
-+not_pax_fault:
-+#endif
-+
- vma = find_vma(mm, address);
- if (!vma)
- goto bad_area;
-@@ -700,16 +843,20 @@ again:
- goto good_area;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- goto bad_area;
-- if (error_code & PF_USER) {
-- /*
-- * Accessing the stack below %sp is always a bug.
-- * The large cushion allows instructions like enter
-- * and pusha to work. ("enter $65535,$31" pushes
-- * 32 pointers and then decrements %sp by 65535.)
-- */
-- if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
-- goto bad_area;
-- }
-+ /*
-+ * Accessing the stack below %sp is always a bug.
-+ * The large cushion allows instructions like enter
-+ * and pusha to work. ("enter $65535,$31" pushes
-+ * 32 pointers and then decrements %sp by 65535.)
-+ */
-+ if (address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)
-+ goto bad_area;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)
-+ goto bad_area;
-+#endif
-+
- if (expand_stack(vma, address))
- goto bad_area;
- /*
-@@ -719,6 +866,8 @@ again:
- good_area:
- si_code = SEGV_ACCERR;
- write = 0;
-+ if (nx_enabled && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
-+ goto bad_area;
- switch (error_code & (PF_PROT|PF_WRITE)) {
- default: /* 3: write, present */
- /* fall through */
-@@ -773,6 +922,54 @@ bad_area:
- up_read(&mm->mmap_sem);
-
- bad_area_nosemaphore:
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ if (mm && (error_code & PF_USER)) {
-+ unsigned long ip = regs->ip;
-+
-+ if (v8086_mode(regs))
-+ ip = ((regs->cs & 0xffff) << 4) + (regs->ip & 0xffff);
-+
-+ /*
-+ * It's possible to have interrupts off here.
-+ */
-+ local_irq_enable();
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) &&
-+ ((nx_enabled && (error_code & PF_INSTR)) || (!(error_code & (PF_PROT | PF_WRITE)) && regs->ip == address))) {
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ switch (pax_handle_fetch_fault(regs)) {
-+ case 2:
-+ return;
-+ }
-+#endif
-+
-+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
-+ do_group_exit(SIGKILL);
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && !(error_code & (PF_PROT | PF_WRITE)) && (regs->ip + SEGMEXEC_TASK_SIZE == address)) {
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ switch (pax_handle_fetch_fault(regs)) {
-+ case 2:
-+ return;
-+ }
-+#endif
-+
-+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
-+ do_group_exit(SIGKILL);
-+ }
-+#endif
-+
-+ }
-+#endif
-+
-+bad_area_nopax:
- /* User mode accesses just cause a SIGSEGV */
- if (error_code & PF_USER) {
- /*
-@@ -851,7 +1048,7 @@ no_context:
- #ifdef CONFIG_X86_32
- die("Oops", regs, error_code);
- bust_spinlocks(0);
-- do_exit(SIGKILL);
-+ do_group_exit(SIGKILL);
- #else
- if (__die("Oops", regs, error_code))
- regs = NULL;
-@@ -944,3 +1141,174 @@ void vmalloc_sync_all(void)
- }
- #endif
- }
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+static int pax_handle_fetch_fault_32(struct pt_regs *regs)
-+{
-+ int err;
-+
-+ do { /* PaX: gcc trampoline emulation #1 */
-+ unsigned char mov1, mov2;
-+ unsigned short jmp;
-+ unsigned int addr1, addr2;
-+
-+#ifdef CONFIG_X86_64
-+ if ((regs->ip + 11) >> 32)
-+ break;
-+#endif
-+
-+ err = get_user(mov1, (unsigned char __user *)regs->ip);
-+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
-+ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
-+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
-+ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
-+
-+ if (err)
-+ break;
-+
-+ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
-+ regs->cx = addr1;
-+ regs->ax = addr2;
-+ regs->ip = addr2;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: gcc trampoline emulation #2 */
-+ unsigned char mov, jmp;
-+ unsigned int addr1, addr2;
-+
-+#ifdef CONFIG_X86_64
-+ if ((regs->ip + 9) >> 32)
-+ break;
-+#endif
-+
-+ err = get_user(mov, (unsigned char __user *)regs->ip);
-+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
-+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
-+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
-+
-+ if (err)
-+ break;
-+
-+ if (mov == 0xB9 && jmp == 0xE9) {
-+ regs->cx = addr1;
-+ regs->ip = (unsigned int)(regs->ip + addr2 + 10);
-+ return 2;
-+ }
-+ } while (0);
-+
-+ return 1; /* PaX in action */
-+}
-+
-+#ifdef CONFIG_X86_64
-+static int pax_handle_fetch_fault_64(struct pt_regs *regs)
-+{
-+ int err;
-+
-+ do { /* PaX: gcc trampoline emulation #1 */
-+ unsigned short mov1, mov2, jmp1;
-+ unsigned char jmp2;
-+ unsigned int addr1;
-+ unsigned long addr2;
-+
-+ err = get_user(mov1, (unsigned short __user *)regs->ip);
-+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
-+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
-+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
-+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
-+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
-+
-+ if (err)
-+ break;
-+
-+ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
-+ regs->r11 = addr1;
-+ regs->r10 = addr2;
-+ regs->ip = addr1;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ do { /* PaX: gcc trampoline emulation #2 */
-+ unsigned short mov1, mov2, jmp1;
-+ unsigned char jmp2;
-+ unsigned long addr1, addr2;
-+
-+ err = get_user(mov1, (unsigned short __user *)regs->ip);
-+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
-+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
-+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
-+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
-+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
-+
-+ if (err)
-+ break;
-+
-+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
-+ regs->r11 = addr1;
-+ regs->r10 = addr2;
-+ regs->ip = addr1;
-+ return 2;
-+ }
-+ } while (0);
-+
-+ return 1; /* PaX in action */
-+}
-+#endif
-+
-+/*
-+ * PaX: decide what to do with offenders (regs->ip = fault address)
-+ *
-+ * returns 1 when task should be killed
-+ * 2 when gcc trampoline was detected
-+ */
-+static int pax_handle_fetch_fault(struct pt_regs *regs)
-+{
-+ if (v8086_mode(regs))
-+ return 1;
-+
-+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
-+ return 1;
-+
-+#ifdef CONFIG_X86_32
-+ return pax_handle_fetch_fault_32(regs);
-+#else
-+ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
-+ return pax_handle_fetch_fault_32(regs);
-+ else
-+ return pax_handle_fetch_fault_64(regs);
-+#endif
-+}
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+void pax_report_insns(void *pc, void *sp)
-+{
-+ long i;
-+
-+ printk(KERN_ERR "PAX: bytes at PC: ");
-+ for (i = 0; i < 20; i++) {
-+ unsigned char c;
-+ if (get_user(c, (unsigned char __user *)pc+i))
-+ printk(KERN_CONT "?? ");
-+ else
-+ printk(KERN_CONT "%02x ", c);
-+ }
-+ printk("\n");
-+
-+ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
-+ for (i = -1; i < 80 / sizeof(long); i++) {
-+ unsigned long c;
-+ if (get_user(c, (unsigned long __user *)sp+i))
-+#ifdef CONFIG_X86_32
-+ printk(KERN_CONT "???????? ");
-+#else
-+ printk(KERN_CONT "???????????????? ");
-+#endif
-+ else
-+ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
-+ }
-+ printk("\n");
-+}
-+#endif
-diff -urNp linux-2.6.28.7/arch/x86/mm/highmem_32.c linux-2.6.28.7/arch/x86/mm/highmem_32.c
---- linux-2.6.28.7/arch/x86/mm/highmem_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/highmem_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -74,6 +74,10 @@ void *kmap_atomic_prot(struct page *page
- enum fixed_addresses idx;
- unsigned long vaddr;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
- pagefault_disable();
-
-@@ -85,7 +89,17 @@ void *kmap_atomic_prot(struct page *page
- idx = type + KM_TYPE_NR*smp_processor_id();
- vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
- BUG_ON(!pte_none(*(kmap_pte-idx)));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- set_pte(kmap_pte-idx, mk_pte(page, prot));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- arch_flush_lazy_mmu_mode();
-
- return (void *)vaddr;
-@@ -101,15 +115,29 @@ void kunmap_atomic(void *kvaddr, enum km
- unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
-- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
-+ if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- kpte_clear_flush(kmap_pte-idx, vaddr);
-- else {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ } else {
- #ifdef CONFIG_DEBUG_HIGHMEM
- BUG_ON(vaddr < PAGE_OFFSET);
- BUG_ON(vaddr >= (unsigned long)high_memory);
-@@ -128,11 +156,25 @@ void *kmap_atomic_pfn(unsigned long pfn,
- enum fixed_addresses idx;
- unsigned long vaddr;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- pagefault_disable();
-
- idx = type + KM_TYPE_NR*smp_processor_id();
- vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- set_pte(kmap_pte-idx, pfn_pte(pfn, kmap_prot));
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- arch_flush_lazy_mmu_mode();
-
- return (void*) vaddr;
-diff -urNp linux-2.6.28.7/arch/x86/mm/hugetlbpage.c linux-2.6.28.7/arch/x86/mm/hugetlbpage.c
---- linux-2.6.28.7/arch/x86/mm/hugetlbpage.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/hugetlbpage.c 2009-02-21 09:37:48.000000000 -0500
-@@ -263,13 +263,18 @@ static unsigned long hugetlb_get_unmappe
- struct hstate *h = hstate_file(file);
- struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma;
-- unsigned long start_addr;
-+ unsigned long start_addr, pax_task_size = TASK_SIZE;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-
- if (len > mm->cached_hole_size) {
-- start_addr = mm->free_area_cache;
-+ start_addr = mm->free_area_cache;
- } else {
-- start_addr = TASK_UNMAPPED_BASE;
-- mm->cached_hole_size = 0;
-+ start_addr = mm->mmap_base;
-+ mm->cached_hole_size = 0;
- }
-
- full_search:
-@@ -277,13 +282,13 @@ full_search:
-
- for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
- /* At this point: (!vma || addr < vma->vm_end). */
-- if (TASK_SIZE - len < addr) {
-+ if (pax_task_size - len < addr) {
- /*
- * Start a new search - just in case we missed
- * some holes.
- */
-- if (start_addr != TASK_UNMAPPED_BASE) {
-- start_addr = TASK_UNMAPPED_BASE;
-+ if (start_addr != mm->mmap_base) {
-+ start_addr = mm->mmap_base;
- mm->cached_hole_size = 0;
- goto full_search;
- }
-@@ -306,9 +311,8 @@ static unsigned long hugetlb_get_unmappe
- struct hstate *h = hstate_file(file);
- struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma, *prev_vma;
-- unsigned long base = mm->mmap_base, addr = addr0;
-+ unsigned long base = mm->mmap_base, addr;
- unsigned long largest_hole = mm->cached_hole_size;
-- int first_time = 1;
-
- /* don't allow allocations above current base */
- if (mm->free_area_cache > base)
-@@ -318,7 +322,7 @@ static unsigned long hugetlb_get_unmappe
- largest_hole = 0;
- mm->free_area_cache = base;
- }
--try_again:
-+
- /* make sure it can fit in the remaining address space */
- if (mm->free_area_cache < len)
- goto fail;
-@@ -360,22 +364,26 @@ try_again:
-
- fail:
- /*
-- * if hint left us with no space for the requested
-- * mapping then try again:
-- */
-- if (first_time) {
-- mm->free_area_cache = base;
-- largest_hole = 0;
-- first_time = 0;
-- goto try_again;
-- }
-- /*
- * A failed mmap() very likely causes application failure,
- * so fall back to the bottom-up function here. This scenario
- * can happen with large stack limits and large mmap()
- * allocations.
- */
-- mm->free_area_cache = TASK_UNMAPPED_BASE;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE;
-+ else
-+#endif
-+
-+ mm->mmap_base = TASK_UNMAPPED_BASE;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
-+ mm->free_area_cache = mm->mmap_base;
- mm->cached_hole_size = ~0UL;
- addr = hugetlb_get_unmapped_area_bottomup(file, addr0,
- len, pgoff, flags);
-@@ -383,6 +391,7 @@ fail:
- /*
- * Restore the topdown base:
- */
-+ mm->mmap_base = base;
- mm->free_area_cache = base;
- mm->cached_hole_size = ~0UL;
-
-@@ -396,10 +405,17 @@ hugetlb_get_unmapped_area(struct file *f
- struct hstate *h = hstate_file(file);
- struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma;
-+ unsigned long pax_task_size = TASK_SIZE;
-
- if (len & ~huge_page_mask(h))
- return -EINVAL;
-- if (len > TASK_SIZE)
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-+
-+ if (len > pax_task_size)
- return -ENOMEM;
-
- if (flags & MAP_FIXED) {
-@@ -411,7 +427,7 @@ hugetlb_get_unmapped_area(struct file *f
- if (addr) {
- addr = ALIGN(addr, huge_page_size(h));
- vma = find_vma(mm, addr);
-- if (TASK_SIZE - len >= addr &&
-+ if (pax_task_size - len >= addr &&
- (!vma || addr + len <= vma->vm_start))
- return addr;
- }
-diff -urNp linux-2.6.28.7/arch/x86/mm/init_32.c linux-2.6.28.7/arch/x86/mm/init_32.c
---- linux-2.6.28.7/arch/x86/mm/init_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/init_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -49,6 +49,7 @@
- #include <asm/setup.h>
- #include <asm/cacheflush.h>
- #include <asm/smp.h>
-+#include <asm/desc.h>
-
- unsigned int __VMALLOC_RESERVE = 128 << 20;
-
-@@ -82,35 +83,6 @@ static __init void *alloc_low_page(unsig
- }
-
- /*
-- * Creates a middle page table and puts a pointer to it in the
-- * given global directory entry. This only returns the gd entry
-- * in non-PAE compilation mode, since the middle layer is folded.
-- */
--static pmd_t * __init one_md_table_init(pgd_t *pgd)
--{
-- pud_t *pud;
-- pmd_t *pmd_table;
--
--#ifdef CONFIG_X86_PAE
-- unsigned long phys;
-- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
-- if (after_init_bootmem)
-- pmd_table = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
-- else
-- pmd_table = (pmd_t *)alloc_low_page(&phys);
-- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
-- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
-- pud = pud_offset(pgd, 0);
-- BUG_ON(pmd_table != pmd_offset(pud, 0));
-- }
--#endif
-- pud = pud_offset(pgd, 0);
-- pmd_table = pmd_offset(pud, 0);
--
-- return pmd_table;
--}
--
--/*
- * Create a page table and place a pointer to it in a middle page
- * directory entry:
- */
-@@ -132,7 +104,11 @@ static pte_t * __init one_page_table_ini
- }
-
- paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
-+#else
- set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
-+#endif
- BUG_ON(page_table != pte_offset_kernel(pmd, 0));
- }
-
-@@ -154,6 +130,7 @@ page_table_range_init(unsigned long star
- int pgd_idx, pmd_idx;
- unsigned long vaddr;
- pgd_t *pgd;
-+ pud_t *pud;
- pmd_t *pmd;
-
- vaddr = start;
-@@ -162,8 +139,13 @@ page_table_range_init(unsigned long star
- pgd = pgd_base + pgd_idx;
-
- for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
-- pmd = one_md_table_init(pgd);
-- pmd = pmd + pmd_index(vaddr);
-+ pud = pud_offset(pgd, vaddr);
-+ pmd = pmd_offset(pud, vaddr);
-+
-+#ifdef CONFIG_X86_PAE
-+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
-+#endif
-+
- for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
- pmd++, pmd_idx++) {
- one_page_table_init(pmd);
-@@ -174,11 +156,23 @@ page_table_range_init(unsigned long star
- }
- }
-
--static inline int is_kernel_text(unsigned long addr)
-+static inline int is_kernel_text(unsigned long start, unsigned long end)
- {
-- if (addr >= PAGE_OFFSET && addr <= (unsigned long)__init_end)
-- return 1;
-- return 0;
-+ unsigned long etext;
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ etext = ktva_ktla((unsigned long)&MODULES_END);
-+#else
-+ etext = (unsigned long)&_etext;
-+#endif
-+
-+ if ((start > ktla_ktva(etext) ||
-+ end <= ktla_ktva((unsigned long)_stext)) &&
-+ (start > ktla_ktva((unsigned long)_einittext) ||
-+ end <= ktla_ktva((unsigned long)_sinittext)) &&
-+ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
-+ return 0;
-+ return 1;
- }
-
- /*
-@@ -191,9 +185,10 @@ static void __init kernel_physical_mappi
- unsigned long end_pfn,
- int use_pse)
- {
-- int pgd_idx, pmd_idx, pte_ofs;
-+ unsigned int pgd_idx, pmd_idx, pte_ofs;
- unsigned long pfn;
- pgd_t *pgd;
-+ pud_t *pud;
- pmd_t *pmd;
- pte_t *pte;
- unsigned pages_2m, pages_4k;
-@@ -223,8 +218,13 @@ repeat:
- pfn = start_pfn;
- pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
- pgd = pgd_base + pgd_idx;
-- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
-- pmd = one_md_table_init(pgd);
-+ for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
-+ pud = pud_offset(pgd, 0);
-+ pmd = pmd_offset(pud, 0);
-+
-+#ifdef CONFIG_X86_PAE
-+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
-+#endif
-
- if (pfn >= end_pfn)
- continue;
-@@ -236,14 +236,13 @@ repeat:
- #endif
- for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
- pmd++, pmd_idx++) {
-- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
-+ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
-
- /*
- * Map with big pages if possible, otherwise
- * create normal page tables:
- */
- if (use_pse) {
-- unsigned int addr2;
- pgprot_t prot = PAGE_KERNEL_LARGE;
- /*
- * first pass will use the same initial
-@@ -253,11 +252,7 @@ repeat:
- __pgprot(PTE_IDENT_ATTR |
- _PAGE_PSE);
-
-- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
-- PAGE_OFFSET + PAGE_SIZE-1;
--
-- if (is_kernel_text(addr) ||
-- is_kernel_text(addr2))
-+ if (is_kernel_text(address, address + PMD_SIZE))
- prot = PAGE_KERNEL_LARGE_EXEC;
-
- pages_2m++;
-@@ -274,7 +269,7 @@ repeat:
- pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
- pte += pte_ofs;
- for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
-- pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
-+ pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
- pgprot_t prot = PAGE_KERNEL;
- /*
- * first pass will use the same initial
-@@ -282,7 +277,7 @@ repeat:
- */
- pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
-
-- if (is_kernel_text(addr))
-+ if (is_kernel_text(address, address + PAGE_SIZE))
- prot = PAGE_KERNEL_EXEC;
-
- pages_4k++;
-@@ -327,7 +322,9 @@ repeat:
- */
- int devmem_is_allowed(unsigned long pagenr)
- {
-- if (pagenr <= 256)
-+ if (!pagenr)
-+ return 1;
-+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
- return 1;
- if (!page_is_ram(pagenr))
- return 1;
-@@ -460,7 +457,7 @@ void __init native_pagetable_setup_start
-
- pud = pud_offset(pgd, va);
- pmd = pmd_offset(pud, va);
-- if (!pmd_present(*pmd))
-+ if (!pmd_present(*pmd) || pmd_huge(*pmd))
- break;
-
- pte = pte_offset_kernel(pmd, va);
-@@ -512,9 +509,7 @@ static void __init early_ioremap_page_ta
-
- static void __init pagetable_init(void)
- {
-- pgd_t *pgd_base = swapper_pg_dir;
--
-- permanent_kmaps_init(pgd_base);
-+ permanent_kmaps_init(swapper_pg_dir);
- }
-
- #ifdef CONFIG_ACPI_SLEEP
-@@ -522,12 +517,12 @@ static void __init pagetable_init(void)
- * ACPI suspend needs this for resume, because things like the intel-agp
- * driver might have split up a kernel 4MB mapping.
- */
--char swsusp_pg_dir[PAGE_SIZE]
-+pgd_t swsusp_pg_dir[PTRS_PER_PGD]
- __attribute__ ((aligned(PAGE_SIZE)));
-
- static inline void save_pg_dir(void)
- {
-- memcpy(swsusp_pg_dir, swapper_pg_dir, PAGE_SIZE);
-+ clone_pgd_range(swsusp_pg_dir, swapper_pg_dir, PTRS_PER_PGD);
- }
- #else /* !CONFIG_ACPI_SLEEP */
- static inline void save_pg_dir(void)
-@@ -557,13 +552,11 @@ void zap_low_mappings(void)
-
- int nx_enabled;
-
--pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
-+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
- EXPORT_SYMBOL_GPL(__supported_pte_mask);
-
- #ifdef CONFIG_X86_PAE
-
--static int disable_nx __initdata;
--
- /*
- * noexec = on|off
- *
-@@ -572,40 +565,33 @@ static int disable_nx __initdata;
- * on Enable
- * off Disable
- */
-+#if !defined(CONFIG_PAX_PAGEEXEC)
- static int __init noexec_setup(char *str)
- {
- if (!str || !strcmp(str, "on")) {
-- if (cpu_has_nx) {
-- __supported_pte_mask |= _PAGE_NX;
-- disable_nx = 0;
-- }
-+ if (cpu_has_nx)
-+ nx_enabled = 1;
- } else {
-- if (!strcmp(str, "off")) {
-- disable_nx = 1;
-- __supported_pte_mask &= ~_PAGE_NX;
-- } else {
-+ if (!strcmp(str, "off"))
-+ nx_enabled = 0;
-+ else
- return -EINVAL;
-- }
- }
-
- return 0;
- }
- early_param("noexec", noexec_setup);
-+#endif
-
- static void __init set_nx(void)
- {
-- unsigned int v[4], l, h;
--
-- if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) {
-- cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]);
-+ if (!nx_enabled && cpu_has_nx) {
-+ unsigned l, h;
-
-- if ((v[3] & (1 << 20)) && !disable_nx) {
-- rdmsr(MSR_EFER, l, h);
-- l |= EFER_NX;
-- wrmsr(MSR_EFER, l, h);
-- nx_enabled = 1;
-- __supported_pte_mask |= _PAGE_NX;
-- }
-+ __supported_pte_mask &= ~_PAGE_NX;
-+ rdmsr(MSR_EFER, l, h);
-+ l &= ~EFER_NX;
-+ wrmsr(MSR_EFER, l, h);
- }
- }
- #endif
-@@ -988,7 +974,7 @@ void __init mem_init(void)
- set_highmem_pages_init();
-
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
-- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
-+ datasize = (unsigned long) &_edata - (unsigned long) &_data;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
-@@ -1034,10 +1020,10 @@ void __init mem_init(void)
- ((unsigned long)&__init_end -
- (unsigned long)&__init_begin) >> 10,
-
-- (unsigned long)&_etext, (unsigned long)&_edata,
-- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
-+ (unsigned long)&_data, (unsigned long)&_edata,
-+ ((unsigned long)&_edata - (unsigned long)&_data) >> 10,
-
-- (unsigned long)&_text, (unsigned long)&_etext,
-+ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
- ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
-
- #ifdef CONFIG_HIGHMEM
-@@ -1166,6 +1152,46 @@ void free_init_pages(char *what, unsigne
-
- void free_initmem(void)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ /* PaX: limit KERNEL_CS to actual size */
-+ unsigned long addr, limit;
-+ struct desc_struct d;
-+ int cpu;
-+ pgd_t *pgd;
-+ pud_t *pud;
-+ pmd_t *pmd;
-+
-+#ifdef CONFIG_MODULES
-+ limit = ktva_ktla((unsigned long)&MODULES_END);
-+#else
-+ limit = (unsigned long)&_etext;
-+#endif
-+ limit = (limit - 1UL) >> PAGE_SHIFT;
-+
-+ for (cpu = 0; cpu < NR_CPUS; cpu++) {
-+ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
-+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
-+ }
-+
-+ /* PaX: make KERNEL_CS read-only */
-+ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_data; addr += PMD_SIZE) {
-+ pgd = pgd_offset_k(addr);
-+ pud = pud_offset(pgd, addr);
-+ pmd = pmd_offset(pud, addr);
-+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
-+ }
-+#ifdef CONFIG_X86_PAE
-+ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
-+ pgd = pgd_offset_k(addr);
-+ pud = pud_offset(pgd, addr);
-+ pmd = pmd_offset(pud, addr);
-+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
-+ }
-+#endif
-+ flush_tlb_all();
-+#endif
-+
- free_init_pages("unused kernel memory",
- (unsigned long)(&__init_begin),
- (unsigned long)(&__init_end));
-diff -urNp linux-2.6.28.7/arch/x86/mm/init_64.c linux-2.6.28.7/arch/x86/mm/init_64.c
---- linux-2.6.28.7/arch/x86/mm/init_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/init_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -175,6 +175,10 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig
- pmd_t *pmd;
- pte_t *pte;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- pud = pud_page + pud_index(vaddr);
- if (pud_none(*pud)) {
- pmd = (pmd_t *) spp_getpage();
-@@ -196,8 +200,17 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig
- }
-
- pte = pte_offset_kernel(pmd, vaddr);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- set_pte(pte, new_pte);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- /*
- * It's enough to flush this one mapping.
- * (PGE mappings get flushed as well)
-@@ -238,14 +251,12 @@ static void __init __init_extra_mapping(
- pgd = pgd_offset_k((unsigned long)__va(phys));
- if (pgd_none(*pgd)) {
- pud = (pud_t *) spp_getpage();
-- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
-- _PAGE_USER));
-+ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
- }
- pud = pud_offset(pgd, (unsigned long)__va(phys));
- if (pud_none(*pud)) {
- pmd = (pmd_t *) spp_getpage();
-- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
-- _PAGE_USER));
-+ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
- }
- pmd = pmd_offset(pud, phys);
- BUG_ON(!pmd_none(*pmd));
-@@ -886,7 +897,9 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to
- */
- int devmem_is_allowed(unsigned long pagenr)
- {
-- if (pagenr <= 256)
-+ if (!pagenr)
-+ return 1;
-+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
- return 1;
- if (!page_is_ram(pagenr))
- return 1;
-@@ -977,6 +990,39 @@ void free_init_pages(char *what, unsigne
-
- void free_initmem(void)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long addr, end;
-+ pgd_t *pgd;
-+ pud_t *pud;
-+ pmd_t *pmd;
-+
-+ /* PaX: make kernel code/rodata read-only, rest non-executable */
-+ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
-+ pgd = pgd_offset_k(addr);
-+ pud = pud_offset(pgd, addr);
-+ pmd = pmd_offset(pud, addr);
-+ if ((unsigned long)_text <= addr && addr < (unsigned long)_data)
-+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
-+ else
-+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
-+ }
-+
-+ addr = (unsigned long)__va(__pa(__START_KERNEL_map));
-+ end = addr + KERNEL_IMAGE_SIZE;
-+ for (; addr < end; addr += PMD_SIZE) {
-+ pgd = pgd_offset_k(addr);
-+ pud = pud_offset(pgd, addr);
-+ pmd = pmd_offset(pud, addr);
-+ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_data)))
-+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
-+ else
-+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
-+ }
-+
-+ flush_tlb_all();
-+#endif
-+
- free_init_pages("unused kernel memory",
- (unsigned long)(&__init_begin),
- (unsigned long)(&__init_end));
-@@ -1149,7 +1195,7 @@ int in_gate_area_no_task(unsigned long a
-
- const char *arch_vma_name(struct vm_area_struct *vma)
- {
-- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
-+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
- return "[vdso]";
- if (vma == &gate_vma)
- return "[vsyscall]";
-diff -urNp linux-2.6.28.7/arch/x86/mm/ioremap.c linux-2.6.28.7/arch/x86/mm/ioremap.c
---- linux-2.6.28.7/arch/x86/mm/ioremap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/ioremap.c 2009-02-21 09:37:48.000000000 -0500
-@@ -114,8 +114,8 @@ int page_is_ram(unsigned long pagenr)
- * Second special case: Some BIOSen report the PC BIOS
- * area (640->1Mb) as ram even though it is not.
- */
-- if (pagenr >= (BIOS_BEGIN >> PAGE_SHIFT) &&
-- pagenr < (BIOS_END >> PAGE_SHIFT))
-+ if (pagenr >= (ISA_START_ADDRESS >> PAGE_SHIFT) &&
-+ pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
- return 0;
-
- for (i = 0; i < e820.nr_map; i++) {
-@@ -293,6 +293,8 @@ static void __iomem *__ioremap_caller(re
- break;
- }
-
-+ prot = canon_pgprot(prot);
-+
- /*
- * Ok, go for it..
- */
-@@ -508,7 +510,7 @@ static int __init early_ioremap_debug_se
- early_param("early_ioremap_debug", early_ioremap_debug_setup);
-
- static __initdata int after_paging_init;
--static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
-+static __initdata pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __aligned(PAGE_SIZE);
-
- static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
- {
-@@ -523,7 +525,11 @@ static inline pmd_t * __init early_iorem
-
- static inline pte_t * __init early_ioremap_pte(unsigned long addr)
- {
-+#ifdef CONFIG_X86_32
- return &bm_pte[pte_index(addr)];
-+#else
-+ return &level1_fixmap_pgt[pte_index(addr)];
-+#endif
- }
-
- void __init early_ioremap_init(void)
-@@ -534,8 +540,10 @@ void __init early_ioremap_init(void)
- printk(KERN_INFO "early_ioremap_init()\n");
-
- pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
-+#ifdef CONFIG_X86_32
- memset(bm_pte, 0, sizeof(bm_pte));
- pmd_populate_kernel(&init_mm, pmd, bm_pte);
-+#endif
-
- /*
- * The boot-ioremap range spans multiple pmds, for which
-diff -urNp linux-2.6.28.7/arch/x86/mm/mmap.c linux-2.6.28.7/arch/x86/mm/mmap.c
---- linux-2.6.28.7/arch/x86/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500
-@@ -36,7 +36,7 @@
- * Leave an at least ~128 MB hole.
- */
- #define MIN_GAP (128*1024*1024)
--#define MAX_GAP (TASK_SIZE/6*5)
-+#define MAX_GAP (pax_task_size/6*5)
-
- /*
- * True on X86_32 or when emulating IA32 on X86_64
-@@ -81,27 +81,40 @@ static unsigned long mmap_rnd(void)
- return rnd << PAGE_SHIFT;
- }
-
--static unsigned long mmap_base(void)
-+static unsigned long mmap_base(struct mm_struct *mm)
- {
- unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
-+ unsigned long pax_task_size = TASK_SIZE;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-
- if (gap < MIN_GAP)
- gap = MIN_GAP;
- else if (gap > MAX_GAP)
- gap = MAX_GAP;
-
-- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
-+ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
- }
-
- /*
- * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
- * does, but not when emulating X86_32
- */
--static unsigned long mmap_legacy_base(void)
-+static unsigned long mmap_legacy_base(struct mm_struct *mm)
- {
-- if (mmap_is_ia32())
-+ if (mmap_is_ia32()) {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
-+ return SEGMEXEC_TASK_UNMAPPED_BASE;
-+ else
-+#endif
-+
- return TASK_UNMAPPED_BASE;
-- else
-+ } else
- return TASK_UNMAPPED_BASE + mmap_rnd();
- }
-
-@@ -112,11 +125,23 @@ static unsigned long mmap_legacy_base(vo
- void arch_pick_mmap_layout(struct mm_struct *mm)
- {
- if (mmap_is_legacy()) {
-- mm->mmap_base = mmap_legacy_base();
-+ mm->mmap_base = mmap_legacy_base(mm);
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
- mm->get_unmapped_area = arch_get_unmapped_area;
- mm->unmap_area = arch_unmap_area;
- } else {
-- mm->mmap_base = mmap_base();
-+ mm->mmap_base = mmap_base(mm);
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
-+#endif
-+
- mm->get_unmapped_area = arch_get_unmapped_area_topdown;
- mm->unmap_area = arch_unmap_area_topdown;
- }
-diff -urNp linux-2.6.28.7/arch/x86/mm/numa_32.c linux-2.6.28.7/arch/x86/mm/numa_32.c
---- linux-2.6.28.7/arch/x86/mm/numa_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/numa_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -98,7 +98,6 @@ unsigned long node_memmap_size_bytes(int
- }
- #endif
-
--extern unsigned long find_max_low_pfn(void);
- extern unsigned long highend_pfn, highstart_pfn;
-
- #define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)
-diff -urNp linux-2.6.28.7/arch/x86/mm/pageattr.c linux-2.6.28.7/arch/x86/mm/pageattr.c
---- linux-2.6.28.7/arch/x86/mm/pageattr.c 2009-02-20 22:26:38.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/pageattr.c 2009-02-21 09:37:48.000000000 -0500
-@@ -20,6 +20,7 @@
- #include <asm/pgalloc.h>
- #include <asm/proto.h>
- #include <asm/pat.h>
-+#include <asm/desc.h>
-
- /*
- * The current flushing context - we pass it instead of 5 arguments:
-@@ -259,7 +260,7 @@ static inline pgprot_t static_protection
- * Does not cover __inittext since that is gone later on. On
- * 64bit we do not enforce !NX on the low mapping
- */
-- if (within(address, (unsigned long)_text, (unsigned long)_etext))
-+ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
- pgprot_val(forbidden) |= _PAGE_NX;
-
- /*
-@@ -321,8 +322,20 @@ EXPORT_SYMBOL_GPL(lookup_address);
- */
- static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
- /* change init_mm */
- set_pte_atomic(kpte, pte);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- #ifdef CONFIG_X86_32
- if (!SHARED_KERNEL_PMD) {
- struct page *page;
-diff -urNp linux-2.6.28.7/arch/x86/mm/pat.c linux-2.6.28.7/arch/x86/mm/pat.c
---- linux-2.6.28.7/arch/x86/mm/pat.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/pat.c 2009-02-21 09:37:48.000000000 -0500
-@@ -359,6 +359,9 @@ int reserve_memtype(u64 start, u64 end,
- new->end = end;
- new->type = actual_type;
-
-+ if (new_type)
-+ *new_type = actual_type;
-+
- spin_lock(&memtype_lock);
-
- if (cached_entry && start >= cached_start)
-@@ -491,13 +494,6 @@ pgprot_t phys_mem_access_prot(struct fil
- return vma_prot;
- }
-
--#ifdef CONFIG_STRICT_DEVMEM
--/* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM*/
--static inline int range_is_allowed(unsigned long pfn, unsigned long size)
--{
-- return 1;
--}
--#else
- /* This check is needed to avoid cache aliasing when PAT is enabled */
- static inline int range_is_allowed(unsigned long pfn, unsigned long size)
- {
-@@ -520,7 +516,6 @@ static inline int range_is_allowed(unsig
- }
- return 1;
- }
--#endif /* CONFIG_STRICT_DEVMEM */
-
- int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
- unsigned long size, pgprot_t *vma_prot)
-diff -urNp linux-2.6.28.7/arch/x86/mm/pgtable_32.c linux-2.6.28.7/arch/x86/mm/pgtable_32.c
---- linux-2.6.28.7/arch/x86/mm/pgtable_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/mm/pgtable_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -31,6 +31,10 @@ void set_pte_vaddr(unsigned long vaddr,
- pmd_t *pmd;
- pte_t *pte;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- pgd = swapper_pg_dir + pgd_index(vaddr);
- if (pgd_none(*pgd)) {
- BUG();
-@@ -47,11 +51,20 @@ void set_pte_vaddr(unsigned long vaddr,
- return;
- }
- pte = pte_offset_kernel(pmd, vaddr);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- if (pte_val(pteval))
- set_pte_present(&init_mm, vaddr, pte, pteval);
- else
- pte_clear(&init_mm, vaddr, pte);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- /*
- * It's enough to flush this one mapping.
- * (PGE mappings get flushed as well)
-diff -urNp linux-2.6.28.7/arch/x86/oprofile/backtrace.c linux-2.6.28.7/arch/x86/oprofile/backtrace.c
---- linux-2.6.28.7/arch/x86/oprofile/backtrace.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/oprofile/backtrace.c 2009-02-21 09:37:48.000000000 -0500
-@@ -37,7 +37,7 @@ static void backtrace_address(void *data
- unsigned int *depth = data;
-
- if ((*depth)--)
-- oprofile_add_trace(addr);
-+ oprofile_add_trace(ktla_ktva(addr));
- }
-
- static struct stacktrace_ops backtrace_ops = {
-@@ -78,7 +78,7 @@ x86_backtrace(struct pt_regs * const reg
- struct frame_head *head = (struct frame_head *)frame_pointer(regs);
- unsigned long stack = kernel_trap_sp(regs);
-
-- if (!user_mode_vm(regs)) {
-+ if (!user_mode(regs)) {
- if (depth)
- dump_trace(NULL, regs, (unsigned long *)stack, 0,
- &backtrace_ops, &depth);
-diff -urNp linux-2.6.28.7/arch/x86/oprofile/op_model_p4.c linux-2.6.28.7/arch/x86/oprofile/op_model_p4.c
---- linux-2.6.28.7/arch/x86/oprofile/op_model_p4.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/oprofile/op_model_p4.c 2009-02-21 09:37:48.000000000 -0500
-@@ -48,7 +48,7 @@ static inline void setup_num_counters(vo
- #endif
- }
-
--static int inline addr_increment(void)
-+static inline int addr_increment(void)
- {
- #ifdef CONFIG_SMP
- return smp_num_siblings == 2 ? 2 : 1;
-diff -urNp linux-2.6.28.7/arch/x86/pci/common.c linux-2.6.28.7/arch/x86/pci/common.c
---- linux-2.6.28.7/arch/x86/pci/common.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/pci/common.c 2009-02-21 09:37:48.000000000 -0500
-@@ -362,7 +362,7 @@ static struct dmi_system_id __devinitdat
- DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
- },
- },
-- {}
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}
- };
-
- void __init dmi_check_pciprobe(void)
-diff -urNp linux-2.6.28.7/arch/x86/pci/fixup.c linux-2.6.28.7/arch/x86/pci/fixup.c
---- linux-2.6.28.7/arch/x86/pci/fixup.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/pci/fixup.c 2009-02-21 09:37:48.000000000 -0500
-@@ -365,7 +365,7 @@ static struct dmi_system_id __devinitdat
- DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"),
- },
- },
-- {}
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
-
- /*
-@@ -436,7 +436,7 @@ static struct dmi_system_id __devinitdat
- DMI_MATCH(DMI_PRODUCT_VERSION, "PSA40U"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
-
- static void __devinit pci_pre_fixup_toshiba_ohci1394(struct pci_dev *dev)
-diff -urNp linux-2.6.28.7/arch/x86/pci/irq.c linux-2.6.28.7/arch/x86/pci/irq.c
---- linux-2.6.28.7/arch/x86/pci/irq.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/pci/irq.c 2009-02-21 09:37:48.000000000 -0500
-@@ -544,7 +544,7 @@ static __init int intel_router_probe(str
- static struct pci_device_id __initdata pirq_440gx[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0) },
- { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2) },
-- { },
-+ { PCI_DEVICE(0, 0) }
- };
-
- /* 440GX has a proprietary PIRQ router -- don't use it */
-@@ -1148,7 +1148,7 @@ static struct dmi_system_id __initdata p
- DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
-
- int __init pcibios_irq_init(void)
-diff -urNp linux-2.6.28.7/arch/x86/pci/pcbios.c linux-2.6.28.7/arch/x86/pci/pcbios.c
---- linux-2.6.28.7/arch/x86/pci/pcbios.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/pci/pcbios.c 2009-02-21 09:37:48.000000000 -0500
-@@ -57,50 +57,120 @@ union bios32 {
- static struct {
- unsigned long address;
- unsigned short segment;
--} bios32_indirect = { 0, __KERNEL_CS };
-+} bios32_indirect __read_only = { 0, __PCIBIOS_CS };
-
- /*
- * Returns the entry point for the given service, NULL on error
- */
-
--static unsigned long bios32_service(unsigned long service)
-+static unsigned long __devinit bios32_service(unsigned long service)
- {
- unsigned char return_code; /* %al */
- unsigned long address; /* %ebx */
- unsigned long length; /* %ecx */
- unsigned long entry; /* %edx */
- unsigned long flags;
-+ struct desc_struct d, *gdt;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-
- local_irq_save(flags);
-- __asm__("lcall *(%%edi); cld"
-+
-+ gdt = get_cpu_gdt_table(smp_processor_id());
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
-+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
-+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
-+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
- : "=a" (return_code),
- "=b" (address),
- "=c" (length),
- "=d" (entry)
- : "0" (service),
- "1" (0),
-- "D" (&bios32_indirect));
-+ "D" (&bios32_indirect),
-+ "r"(__PCIBIOS_DS)
-+ : "memory");
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
-+ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
-+ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
-+ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- local_irq_restore(flags);
-
- switch (return_code) {
-- case 0:
-- return address + entry;
-- case 0x80: /* Not present */
-- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
-- return 0;
-- default: /* Shouldn't happen */
-- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
-- service, return_code);
-+ case 0: {
-+ int cpu;
-+ unsigned char flags;
-+
-+ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
-+ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
-+ printk(KERN_WARNING "bios32_service: not valid\n");
- return 0;
-+ }
-+ address = address + PAGE_OFFSET;
-+ length += 16UL; /* some BIOSs underreport this... */
-+ flags = 4;
-+ if (length >= 64*1024*1024) {
-+ length >>= PAGE_SHIFT;
-+ flags |= 8;
-+ }
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ for (cpu = 0; cpu < NR_CPUS; cpu++) {
-+ gdt = get_cpu_gdt_table(cpu);
-+ pack_descriptor(&d, address, length, 0x9b, flags);
-+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
-+ pack_descriptor(&d, address, length, 0x93, flags);
-+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
-+ }
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ return entry;
-+ }
-+ case 0x80: /* Not present */
-+ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
-+ return 0;
-+ default: /* Shouldn't happen */
-+ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
-+ service, return_code);
-+ return 0;
- }
- }
-
- static struct {
- unsigned long address;
- unsigned short segment;
--} pci_indirect = { 0, __KERNEL_CS };
-+} pci_indirect __read_only = { 0, __PCIBIOS_CS };
-
--static int pci_bios_present;
-+static int pci_bios_present __read_only;
-
- static int __devinit check_pcibios(void)
- {
-@@ -109,11 +179,13 @@ static int __devinit check_pcibios(void)
- unsigned long flags, pcibios_entry;
-
- if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
-- pci_indirect.address = pcibios_entry + PAGE_OFFSET;
-+ pci_indirect.address = pcibios_entry;
-
- local_irq_save(flags);
-- __asm__(
-- "lcall *(%%edi); cld\n\t"
-+ __asm__("movw %w6, %%ds\n\t"
-+ "lcall *%%ss:(%%edi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -122,7 +194,8 @@ static int __devinit check_pcibios(void)
- "=b" (ebx),
- "=c" (ecx)
- : "1" (PCIBIOS_PCI_BIOS_PRESENT),
-- "D" (&pci_indirect)
-+ "D" (&pci_indirect),
-+ "r" (__PCIBIOS_DS)
- : "memory");
- local_irq_restore(flags);
-
-@@ -166,7 +239,10 @@ static int pci_bios_read(unsigned int se
-
- switch (len) {
- case 1:
-- __asm__("lcall *(%%esi); cld\n\t"
-+ __asm__("movw %w6, %%ds\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -175,7 +251,8 @@ static int pci_bios_read(unsigned int se
- : "1" (PCIBIOS_READ_CONFIG_BYTE),
- "b" (bx),
- "D" ((long)reg),
-- "S" (&pci_indirect));
-+ "S" (&pci_indirect),
-+ "r" (__PCIBIOS_DS));
- /*
- * Zero-extend the result beyond 8 bits, do not trust the
- * BIOS having done it:
-@@ -183,7 +260,10 @@ static int pci_bios_read(unsigned int se
- *value &= 0xff;
- break;
- case 2:
-- __asm__("lcall *(%%esi); cld\n\t"
-+ __asm__("movw %w6, %%ds\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -192,7 +272,8 @@ static int pci_bios_read(unsigned int se
- : "1" (PCIBIOS_READ_CONFIG_WORD),
- "b" (bx),
- "D" ((long)reg),
-- "S" (&pci_indirect));
-+ "S" (&pci_indirect),
-+ "r" (__PCIBIOS_DS));
- /*
- * Zero-extend the result beyond 16 bits, do not trust the
- * BIOS having done it:
-@@ -200,7 +281,10 @@ static int pci_bios_read(unsigned int se
- *value &= 0xffff;
- break;
- case 4:
-- __asm__("lcall *(%%esi); cld\n\t"
-+ __asm__("movw %w6, %%ds\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -209,7 +293,8 @@ static int pci_bios_read(unsigned int se
- : "1" (PCIBIOS_READ_CONFIG_DWORD),
- "b" (bx),
- "D" ((long)reg),
-- "S" (&pci_indirect));
-+ "S" (&pci_indirect),
-+ "r" (__PCIBIOS_DS));
- break;
- }
-
-@@ -232,7 +317,10 @@ static int pci_bios_write(unsigned int s
-
- switch (len) {
- case 1:
-- __asm__("lcall *(%%esi); cld\n\t"
-+ __asm__("movw %w6, %%ds\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -241,10 +329,14 @@ static int pci_bios_write(unsigned int s
- "c" (value),
- "b" (bx),
- "D" ((long)reg),
-- "S" (&pci_indirect));
-+ "S" (&pci_indirect),
-+ "r" (__PCIBIOS_DS));
- break;
- case 2:
-- __asm__("lcall *(%%esi); cld\n\t"
-+ __asm__("movw %w6, %%ds\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -253,10 +345,14 @@ static int pci_bios_write(unsigned int s
- "c" (value),
- "b" (bx),
- "D" ((long)reg),
-- "S" (&pci_indirect));
-+ "S" (&pci_indirect),
-+ "r" (__PCIBIOS_DS));
- break;
- case 4:
-- __asm__("lcall *(%%esi); cld\n\t"
-+ __asm__("movw %w6, %%ds\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n\t"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -265,7 +361,8 @@ static int pci_bios_write(unsigned int s
- "c" (value),
- "b" (bx),
- "D" ((long)reg),
-- "S" (&pci_indirect));
-+ "S" (&pci_indirect),
-+ "r" (__PCIBIOS_DS));
- break;
- }
-
-@@ -369,10 +466,13 @@ struct irq_routing_table * pcibios_get_i
-
- DBG("PCI: Fetching IRQ routing table... ");
- __asm__("push %%es\n\t"
-+ "movw %w8, %%ds\n\t"
- "push %%ds\n\t"
- "pop %%es\n\t"
-- "lcall *(%%esi); cld\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
- "pop %%es\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -383,7 +483,8 @@ struct irq_routing_table * pcibios_get_i
- "1" (0),
- "D" ((long) &opt),
- "S" (&pci_indirect),
-- "m" (opt)
-+ "m" (opt),
-+ "r" (__PCIBIOS_DS)
- : "memory");
- DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
- if (ret & 0xff00)
-@@ -407,7 +508,10 @@ int pcibios_set_irq_routing(struct pci_d
- {
- int ret;
-
-- __asm__("lcall *(%%esi); cld\n\t"
-+ __asm__("movw %w5, %%ds\n\t"
-+ "lcall *%%ss:(%%esi); cld\n\t"
-+ "push %%ss\n\t"
-+ "pop %%ds\n"
- "jc 1f\n\t"
- "xor %%ah, %%ah\n"
- "1:"
-@@ -415,7 +519,8 @@ int pcibios_set_irq_routing(struct pci_d
- : "0" (PCIBIOS_SET_PCI_HW_INT),
- "b" ((dev->bus->number << 8) | dev->devfn),
- "c" ((irq << 8) | (pin + 10)),
-- "S" (&pci_indirect));
-+ "S" (&pci_indirect),
-+ "r" (__PCIBIOS_DS));
- return !(ret & 0xff00);
- }
- EXPORT_SYMBOL(pcibios_set_irq_routing);
-diff -urNp linux-2.6.28.7/arch/x86/power/cpu_32.c linux-2.6.28.7/arch/x86/power/cpu_32.c
---- linux-2.6.28.7/arch/x86/power/cpu_32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/power/cpu_32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -67,7 +67,7 @@ static void do_fpu_end(void)
- static void fix_processor_context(void)
- {
- int cpu = smp_processor_id();
-- struct tss_struct *t = &per_cpu(init_tss, cpu);
-+ struct tss_struct *t = init_tss + cpu;
-
- set_tss_desc(cpu, t); /*
- * This just modifies memory; should not be
-diff -urNp linux-2.6.28.7/arch/x86/power/cpu_64.c linux-2.6.28.7/arch/x86/power/cpu_64.c
---- linux-2.6.28.7/arch/x86/power/cpu_64.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/power/cpu_64.c 2009-02-21 09:37:48.000000000 -0500
-@@ -143,7 +143,11 @@ void restore_processor_state(void)
- static void fix_processor_context(void)
- {
- int cpu = smp_processor_id();
-- struct tss_struct *t = &per_cpu(init_tss, cpu);
-+ struct tss_struct *t = init_tss + cpu;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-
- /*
- * This just modifies memory; should not be necessary. But... This
-@@ -152,8 +156,16 @@ static void fix_processor_context(void)
- */
- set_tss_desc(cpu, t);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- syscall_init(); /* This sets MSR_*STAR and related */
- load_TR_desc(); /* This does ltr */
- load_LDT(¤t->active_mm->context); /* This does lldt */
-diff -urNp linux-2.6.28.7/arch/x86/vdso/vdso32-setup.c linux-2.6.28.7/arch/x86/vdso/vdso32-setup.c
---- linux-2.6.28.7/arch/x86/vdso/vdso32-setup.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/vdso/vdso32-setup.c 2009-02-21 09:37:48.000000000 -0500
-@@ -226,7 +226,7 @@ static inline void map_compat_vdso(int m
- void enable_sep_cpu(void)
- {
- int cpu = get_cpu();
-- struct tss_struct *tss = &per_cpu(init_tss, cpu);
-+ struct tss_struct *tss = init_tss + cpu;
-
- if (!boot_cpu_has(X86_FEATURE_SEP)) {
- put_cpu();
-@@ -249,7 +249,7 @@ static int __init gate_vma_init(void)
- gate_vma.vm_start = FIXADDR_USER_START;
- gate_vma.vm_end = FIXADDR_USER_END;
- gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-- gate_vma.vm_page_prot = __P101;
-+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
- /*
- * Make sure the vDSO gets into every core dump.
- * Dumping its contents makes post-mortem fully interpretable later
-@@ -331,7 +331,7 @@ int arch_setup_additional_pages(struct l
- if (compat)
- addr = VDSO_HIGH_BASE;
- else {
-- addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
-+ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE);
- if (IS_ERR_VALUE(addr)) {
- ret = addr;
- goto up_fail;
-@@ -358,7 +358,7 @@ int arch_setup_additional_pages(struct l
- goto up_fail;
- }
-
-- current->mm->context.vdso = (void *)addr;
-+ current->mm->context.vdso = addr;
- current_thread_info()->sysenter_return =
- VDSO32_SYMBOL(addr, SYSENTER_RETURN);
-
-@@ -384,7 +384,7 @@ static ctl_table abi_table2[] = {
- .mode = 0644,
- .proc_handler = proc_dointvec
- },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static ctl_table abi_root_table2[] = {
-@@ -394,7 +394,7 @@ static ctl_table abi_root_table2[] = {
- .mode = 0555,
- .child = abi_table2
- },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static __init int ia32_binfmt_init(void)
-@@ -409,8 +409,14 @@ __initcall(ia32_binfmt_init);
-
- const char *arch_vma_name(struct vm_area_struct *vma)
- {
-- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
-+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
- return "[vdso]";
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso)
-+ return "[vdso]";
-+#endif
-+
- return NULL;
- }
-
-@@ -419,7 +425,7 @@ struct vm_area_struct *get_gate_vma(stru
- struct mm_struct *mm = tsk->mm;
-
- /* Check to see if this task was created in compat vdso mode */
-- if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
-+ if (mm && mm->context.vdso == VDSO_HIGH_BASE)
- return &gate_vma;
- return NULL;
- }
-diff -urNp linux-2.6.28.7/arch/x86/vdso/vma.c linux-2.6.28.7/arch/x86/vdso/vma.c
---- linux-2.6.28.7/arch/x86/vdso/vma.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/vdso/vma.c 2009-02-21 09:37:48.000000000 -0500
-@@ -123,7 +123,7 @@ int arch_setup_additional_pages(struct l
- if (ret)
- goto up_fail;
-
-- current->mm->context.vdso = (void *)addr;
-+ current->mm->context.vdso = addr;
- up_fail:
- up_write(&mm->mmap_sem);
- return ret;
-diff -urNp linux-2.6.28.7/arch/x86/xen/enlighten.c linux-2.6.28.7/arch/x86/xen/enlighten.c
---- linux-2.6.28.7/arch/x86/xen/enlighten.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/xen/enlighten.c 2009-02-21 09:37:48.000000000 -0500
-@@ -318,7 +318,7 @@ static void xen_set_ldt(const void *addr
- static void xen_load_gdt(const struct desc_ptr *dtr)
- {
- unsigned long *frames;
-- unsigned long va = dtr->address;
-+ unsigned long va = (unsigned long)dtr->address;
- unsigned int size = dtr->size + 1;
- unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
- int f;
-@@ -333,7 +333,7 @@ static void xen_load_gdt(const struct de
- mcs = xen_mc_entry(sizeof(*frames) * pages);
- frames = mcs.args;
-
-- for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
-+ for (f = 0; va < (unsigned long)dtr->address + size; va += PAGE_SIZE, f++) {
- frames[f] = virt_to_mfn(va);
- make_lowmem_page_readonly((void *)va);
- }
-@@ -441,7 +441,7 @@ static void xen_write_idt_entry(gate_des
-
- preempt_disable();
-
-- start = __get_cpu_var(idt_desc).address;
-+ start = (unsigned long)__get_cpu_var(idt_desc).address;
- end = start + __get_cpu_var(idt_desc).size + 1;
-
- xen_mc_flush();
-@@ -1526,6 +1526,8 @@ static __init pgd_t *xen_setup_kernel_pa
- convert_pfn_mfn(init_level4_pgt);
- convert_pfn_mfn(level3_ident_pgt);
- convert_pfn_mfn(level3_kernel_pgt);
-+ convert_pfn_mfn(level3_vmalloc_pgt);
-+ convert_pfn_mfn(level3_vmemmap_pgt);
-
- l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd);
- l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud);
-@@ -1544,9 +1546,12 @@ static __init pgd_t *xen_setup_kernel_pa
- set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
- set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
- set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
-+ set_page_prot(level3_vmalloc_pgt, PAGE_KERNEL_RO);
-+ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
- set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
- set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
- set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
-+ set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
-
- /* Pin down new L4 */
- pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
-diff -urNp linux-2.6.28.7/arch/x86/xen/smp.c linux-2.6.28.7/arch/x86/xen/smp.c
---- linux-2.6.28.7/arch/x86/xen/smp.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/arch/x86/xen/smp.c 2009-02-21 09:37:48.000000000 -0500
-@@ -171,11 +171,6 @@ static void __init xen_smp_prepare_boot_
- {
- BUG_ON(smp_processor_id() != 0);
- native_smp_prepare_boot_cpu();
--
-- /* We've switched to the "real" per-cpu gdt, so make sure the
-- old memory can be recycled */
-- make_lowmem_page_readwrite(&per_cpu_var(gdt_page));
--
- xen_setup_vcpu_info_placement();
- }
-
-@@ -231,8 +226,8 @@ cpu_initialize_context(unsigned int cpu,
- gdt = get_cpu_gdt_table(cpu);
-
- ctxt->flags = VGCF_IN_KERNEL;
-- ctxt->user_regs.ds = __USER_DS;
-- ctxt->user_regs.es = __USER_DS;
-+ ctxt->user_regs.ds = __KERNEL_DS;
-+ ctxt->user_regs.es = __KERNEL_DS;
- ctxt->user_regs.ss = __KERNEL_DS;
- #ifdef CONFIG_X86_32
- ctxt->user_regs.fs = __KERNEL_PERCPU;
-diff -urNp linux-2.6.28.7/crypto/async_tx/async_tx.c linux-2.6.28.7/crypto/async_tx/async_tx.c
---- linux-2.6.28.7/crypto/async_tx/async_tx.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/crypto/async_tx/async_tx.c 2009-02-21 09:37:48.000000000 -0500
-@@ -358,8 +358,8 @@ async_tx_init(void)
- err:
- printk(KERN_ERR "async_tx: initialization failure\n");
-
-- while (--cap >= 0)
-- free_percpu(channel_table[cap]);
-+ while (cap)
-+ free_percpu(channel_table[--cap]);
-
- return 1;
- }
-diff -urNp linux-2.6.28.7/crypto/lrw.c linux-2.6.28.7/crypto/lrw.c
---- linux-2.6.28.7/crypto/lrw.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/crypto/lrw.c 2009-02-21 09:37:48.000000000 -0500
-@@ -54,7 +54,7 @@ static int setkey(struct crypto_tfm *par
- struct priv *ctx = crypto_tfm_ctx(parent);
- struct crypto_cipher *child = ctx->child;
- int err, i;
-- be128 tmp = { 0 };
-+ be128 tmp = { 0, 0 };
- int bsize = crypto_cipher_blocksize(child);
-
- crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
-diff -urNp linux-2.6.28.7/Documentation/dontdiff linux-2.6.28.7/Documentation/dontdiff
---- linux-2.6.28.7/Documentation/dontdiff 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/Documentation/dontdiff 2009-02-21 09:37:48.000000000 -0500
-@@ -3,6 +3,7 @@
- *.bin
- *.cpio
- *.csp
-+*.dbg
- *.dsp
- *.dvi
- *.elf
-@@ -49,6 +50,10 @@
- 53c700_d.h
- CVS
- ChangeSet
-+GPATH
-+GRTAGS
-+GSYMS
-+GTAGS
- Image
- Kerntypes
- Module.markers
-@@ -62,7 +67,6 @@ aic7*reg_print.c*
- aic7*seq.h*
- aicasm
- aicdb.h*
--asm
- asm-offsets.h
- asm_offsets.h
- autoconf.h*
-@@ -77,6 +81,7 @@ btfixupprep
- build
- bvmlinux
- bzImage*
-+capflags.c
- classlist.h*
- comp*.log
- compile.h*
-@@ -188,12 +193,15 @@ version.h*
- vmlinux
- vmlinux-*
- vmlinux.aout
-+vmlinux.bin.all
- vmlinux.lds
-+vmlinux.relocs
- vsyscall.lds
- vsyscall_32.lds
- wanxlfw.inc
- uImage
- unifdef
-+utsrelease.h
- wakeup.bin
- wakeup.elf
- wakeup.lds
-diff -urNp linux-2.6.28.7/drivers/acpi/blacklist.c linux-2.6.28.7/drivers/acpi/blacklist.c
---- linux-2.6.28.7/drivers/acpi/blacklist.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/acpi/blacklist.c 2009-02-21 09:37:48.000000000 -0500
-@@ -71,7 +71,7 @@ static struct acpi_blacklist_item acpi_b
- {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
- "Incorrect _ADR", 1},
-
-- {""}
-+ {"", "", 0, 0, 0, all_versions, 0}
- };
-
- #if CONFIG_ACPI_BLACKLIST_YEAR
-diff -urNp linux-2.6.28.7/drivers/acpi/osl.c linux-2.6.28.7/drivers/acpi/osl.c
---- linux-2.6.28.7/drivers/acpi/osl.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/acpi/osl.c 2009-02-21 09:37:48.000000000 -0500
-@@ -483,6 +483,8 @@ acpi_os_read_memory(acpi_physical_addres
- void __iomem *virt_addr;
-
- virt_addr = ioremap(phys_addr, width);
-+ if (!virt_addr)
-+ return AE_NO_MEMORY;
- if (!value)
- value = &dummy;
-
-@@ -511,6 +513,8 @@ acpi_os_write_memory(acpi_physical_addre
- void __iomem *virt_addr;
-
- virt_addr = ioremap(phys_addr, width);
-+ if (!virt_addr)
-+ return AE_NO_MEMORY;
-
- switch (width) {
- case 8:
-diff -urNp linux-2.6.28.7/drivers/acpi/processor_core.c linux-2.6.28.7/drivers/acpi/processor_core.c
---- linux-2.6.28.7/drivers/acpi/processor_core.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/acpi/processor_core.c 2009-02-21 09:37:48.000000000 -0500
-@@ -678,7 +678,7 @@ static int __cpuinit acpi_processor_star
- return 0;
- }
-
-- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
-+ BUG_ON(pr->id >= nr_cpu_ids);
-
- /*
- * Buggy BIOS check
-diff -urNp linux-2.6.28.7/drivers/acpi/processor_idle.c linux-2.6.28.7/drivers/acpi/processor_idle.c
---- linux-2.6.28.7/drivers/acpi/processor_idle.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/acpi/processor_idle.c 2009-02-21 09:37:48.000000000 -0500
-@@ -181,7 +181,7 @@ static struct dmi_system_id __cpuinitdat
- DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
- DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")},
- (void *)2},
-- {},
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL},
- };
-
- static inline u32 ticks_elapsed(u32 t1, u32 t2)
-diff -urNp linux-2.6.28.7/drivers/acpi/tables/tbfadt.c linux-2.6.28.7/drivers/acpi/tables/tbfadt.c
---- linux-2.6.28.7/drivers/acpi/tables/tbfadt.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/acpi/tables/tbfadt.c 2009-02-21 09:37:48.000000000 -0500
-@@ -48,7 +48,7 @@
- ACPI_MODULE_NAME("tbfadt")
-
- /* Local prototypes */
--static void inline
-+static inline void
- acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
- u8 byte_width, u64 address);
-
-@@ -122,7 +122,7 @@ static struct acpi_fadt_info fadt_info_t
- *
- ******************************************************************************/
-
--static void inline
-+static inline void
- acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
- u8 byte_width, u64 address)
- {
-diff -urNp linux-2.6.28.7/drivers/ata/ahci.c linux-2.6.28.7/drivers/ata/ahci.c
---- linux-2.6.28.7/drivers/ata/ahci.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ata/ahci.c 2009-02-21 09:37:48.000000000 -0500
-@@ -606,7 +606,7 @@ static const struct pci_device_id ahci_p
- { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
-
-- { } /* terminate list */
-+ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */
- };
-
-
-diff -urNp linux-2.6.28.7/drivers/ata/ata_piix.c linux-2.6.28.7/drivers/ata/ata_piix.c
---- linux-2.6.28.7/drivers/ata/ata_piix.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ata/ata_piix.c 2009-02-21 09:37:48.000000000 -0500
-@@ -289,7 +289,7 @@ static const struct pci_device_id piix_p
- { 0x8086, 0x3b2d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
- /* SATA Controller IDE (PCH) */
- { 0x8086, 0x3b2e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
-- { } /* terminate list */
-+ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */
- };
-
- static struct pci_driver piix_pci_driver = {
-@@ -593,7 +593,7 @@ static const struct ich_laptop ich_lapto
- { 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */
- { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */
- /* end marker */
-- { 0, }
-+ { 0, 0, 0 }
- };
-
- /**
-@@ -1052,7 +1052,7 @@ static int piix_broken_suspend(void)
- },
- },
-
-- { } /* terminate list */
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } /* terminate list */
- };
- static const char *oemstrs[] = {
- "Tecra M3,",
-diff -urNp linux-2.6.28.7/drivers/ata/libata-core.c linux-2.6.28.7/drivers/ata/libata-core.c
---- linux-2.6.28.7/drivers/ata/libata-core.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ata/libata-core.c 2009-02-21 09:37:48.000000000 -0500
-@@ -807,7 +807,7 @@ static const struct ata_xfer_ent {
- { ATA_SHIFT_PIO, ATA_NR_PIO_MODES, XFER_PIO_0 },
- { ATA_SHIFT_MWDMA, ATA_NR_MWDMA_MODES, XFER_MW_DMA_0 },
- { ATA_SHIFT_UDMA, ATA_NR_UDMA_MODES, XFER_UDMA_0 },
-- { -1, },
-+ { -1, 0, 0 }
- };
-
- /**
-@@ -2981,7 +2981,7 @@ static const struct ata_timing ata_timin
- { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 },
- { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 },
-
-- { 0xFF }
-+ { 0xFF, 0, 0, 0, 0, 0, 0, 0, 0 }
- };
-
- #define ENOUGH(v, unit) (((v)-1)/(unit)+1)
-@@ -4147,7 +4147,7 @@ static const struct ata_blacklist_entry
- { "MTRON MSP-SATA*", NULL, ATA_HORKAGE_BRIDGE_OK, },
-
- /* End Marker */
-- { }
-+ { NULL, NULL, 0 }
- };
-
- static int strn_pattern_cmp(const char *patt, const char *name, int wildchar)
-diff -urNp linux-2.6.28.7/drivers/char/agp/frontend.c linux-2.6.28.7/drivers/char/agp/frontend.c
---- linux-2.6.28.7/drivers/char/agp/frontend.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/agp/frontend.c 2009-02-21 09:37:48.000000000 -0500
-@@ -824,7 +824,7 @@ static int agpioc_reserve_wrap(struct ag
- if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
- return -EFAULT;
-
-- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
-+ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
- return -EFAULT;
-
- client = agp_find_client_by_pid(reserve.pid);
-diff -urNp linux-2.6.28.7/drivers/char/agp/intel-agp.c linux-2.6.28.7/drivers/char/agp/intel-agp.c
---- linux-2.6.28.7/drivers/char/agp/intel-agp.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/agp/intel-agp.c 2009-02-21 09:37:48.000000000 -0500
-@@ -2367,7 +2367,7 @@ static struct pci_device_id agp_intel_pc
- ID(PCI_DEVICE_ID_INTEL_Q45_HB),
- ID(PCI_DEVICE_ID_INTEL_G45_HB),
- ID(PCI_DEVICE_ID_INTEL_G41_HB),
-- { }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, agp_intel_pci_table);
-diff -urNp linux-2.6.28.7/drivers/char/hpet.c linux-2.6.28.7/drivers/char/hpet.c
---- linux-2.6.28.7/drivers/char/hpet.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/hpet.c 2009-02-21 09:37:48.000000000 -0500
-@@ -975,7 +975,7 @@ static struct acpi_driver hpet_acpi_driv
- },
- };
-
--static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops };
-+static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops, {NULL, NULL}, NULL, NULL };
-
- static int __init hpet_init(void)
- {
-diff -urNp linux-2.6.28.7/drivers/char/keyboard.c linux-2.6.28.7/drivers/char/keyboard.c
---- linux-2.6.28.7/drivers/char/keyboard.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/keyboard.c 2009-02-21 09:37:48.000000000 -0500
-@@ -635,6 +635,16 @@ static void k_spec(struct vc_data *vc, u
- kbd->kbdmode == VC_MEDIUMRAW) &&
- value != KVAL(K_SAK))
- return; /* SAK is allowed even in raw mode */
-+
-+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
-+ {
-+ void *func = fn_handler[value];
-+ if (func == fn_show_state || func == fn_show_ptregs ||
-+ func == fn_show_mem)
-+ return;
-+ }
-+#endif
-+
- fn_handler[value](vc);
- }
-
-@@ -1388,7 +1398,7 @@ static const struct input_device_id kbd_
- .evbit = { BIT_MASK(EV_SND) },
- },
-
-- { }, /* Terminating entry */
-+ { 0 }, /* Terminating entry */
- };
-
- MODULE_DEVICE_TABLE(input, kbd_ids);
-diff -urNp linux-2.6.28.7/drivers/char/mem.c linux-2.6.28.7/drivers/char/mem.c
---- linux-2.6.28.7/drivers/char/mem.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/mem.c 2009-02-21 09:37:48.000000000 -0500
-@@ -18,6 +18,7 @@
- #include <linux/raw.h>
- #include <linux/tty.h>
- #include <linux/capability.h>
-+#include <linux/security.h>
- #include <linux/ptrace.h>
- #include <linux/device.h>
- #include <linux/highmem.h>
-@@ -35,6 +36,10 @@
- # include <linux/efi.h>
- #endif
-
-+#ifdef CONFIG_GRKERNSEC
-+extern struct file_operations grsec_fops;
-+#endif
-+
- /*
- * Architectures vary in how they handle caching for addresses
- * outside of main memory.
-@@ -192,6 +197,11 @@ static ssize_t write_mem(struct file * f
- if (!valid_phys_addr_range(p, count))
- return -EFAULT;
-
-+#ifdef CONFIG_GRKERNSEC_KMEM
-+ gr_handle_mem_write();
-+ return -EPERM;
-+#endif
-+
- written = 0;
-
- #ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
-@@ -350,6 +360,11 @@ static int mmap_mem(struct file * file,
- &vma->vm_page_prot))
- return -EINVAL;
-
-+#ifdef CONFIG_GRKERNSEC_KMEM
-+ if (gr_handle_mem_mmap(vma->vm_pgoff << PAGE_SHIFT, vma))
-+ return -EPERM;
-+#endif
-+
- vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
- size,
- vma->vm_page_prot);
-@@ -588,6 +603,11 @@ static ssize_t write_kmem(struct file *
- ssize_t written;
- char * kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */
-
-+#ifdef CONFIG_GRKERNSEC_KMEM
-+ gr_handle_kmem_write();
-+ return -EPERM;
-+#endif
-+
- if (p < (unsigned long) high_memory) {
-
- wrote = count;
-@@ -791,6 +811,16 @@ static loff_t memory_lseek(struct file *
-
- static int open_port(struct inode * inode, struct file * filp)
- {
-+#ifdef CONFIG_GRKERNSEC_KMEM
-+ gr_handle_open_port();
-+ return -EPERM;
-+#endif
-+
-+ return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
-+}
-+
-+static int open_mem(struct inode * inode, struct file * filp)
-+{
- return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
- }
-
-@@ -798,7 +828,6 @@ static int open_port(struct inode * inod
- #define full_lseek null_lseek
- #define write_zero write_null
- #define read_full read_zero
--#define open_mem open_port
- #define open_kmem open_mem
- #define open_oldmem open_mem
-
-@@ -938,6 +967,11 @@ static int memory_open(struct inode * in
- filp->f_op = &oldmem_fops;
- break;
- #endif
-+#ifdef CONFIG_GRKERNSEC
-+ case 13:
-+ filp->f_op = &grsec_fops;
-+ break;
-+#endif
- default:
- unlock_kernel();
- return -ENXIO;
-@@ -974,6 +1008,9 @@ static const struct {
- #ifdef CONFIG_CRASH_DUMP
- {12,"oldmem", S_IRUSR | S_IWUSR | S_IRGRP, &oldmem_fops},
- #endif
-+#ifdef CONFIG_GRKERNSEC
-+ {13,"grsec", S_IRUSR | S_IWUGO, &grsec_fops},
-+#endif
- };
-
- static struct class *mem_class;
-diff -urNp linux-2.6.28.7/drivers/char/nvram.c linux-2.6.28.7/drivers/char/nvram.c
---- linux-2.6.28.7/drivers/char/nvram.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/nvram.c 2009-02-21 09:37:48.000000000 -0500
-@@ -433,7 +433,10 @@ static const struct file_operations nvra
- static struct miscdevice nvram_dev = {
- NVRAM_MINOR,
- "nvram",
-- &nvram_fops
-+ &nvram_fops,
-+ {NULL, NULL},
-+ NULL,
-+ NULL
- };
-
- static int __init
-diff -urNp linux-2.6.28.7/drivers/char/random.c linux-2.6.28.7/drivers/char/random.c
---- linux-2.6.28.7/drivers/char/random.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/random.c 2009-02-21 09:37:48.000000000 -0500
-@@ -249,8 +249,13 @@
- /*
- * Configuration information
- */
-+#ifdef CONFIG_GRKERNSEC_RANDNET
-+#define INPUT_POOL_WORDS 512
-+#define OUTPUT_POOL_WORDS 128
-+#else
- #define INPUT_POOL_WORDS 128
- #define OUTPUT_POOL_WORDS 32
-+#endif
- #define SEC_XFER_SIZE 512
-
- /*
-@@ -287,10 +292,17 @@ static struct poolinfo {
- int poolwords;
- int tap1, tap2, tap3, tap4, tap5;
- } poolinfo_table[] = {
-+#ifdef CONFIG_GRKERNSEC_RANDNET
-+ /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */
-+ { 512, 411, 308, 208, 104, 1 },
-+ /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */
-+ { 128, 103, 76, 51, 25, 1 },
-+#else
- /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
- { 128, 103, 76, 51, 25, 1 },
- /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
- { 32, 26, 20, 14, 7, 1 },
-+#endif
- #if 0
- /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */
- { 2048, 1638, 1231, 819, 411, 1 },
-@@ -1185,7 +1197,7 @@ EXPORT_SYMBOL(generate_random_uuid);
- #include <linux/sysctl.h>
-
- static int min_read_thresh = 8, min_write_thresh;
--static int max_read_thresh = INPUT_POOL_WORDS * 32;
-+static int max_read_thresh = OUTPUT_POOL_WORDS * 32;
- static int max_write_thresh = INPUT_POOL_WORDS * 32;
- static char sysctl_bootid[16];
-
-diff -urNp linux-2.6.28.7/drivers/char/tpm/tpm.c linux-2.6.28.7/drivers/char/tpm/tpm.c
---- linux-2.6.28.7/drivers/char/tpm/tpm.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/tpm/tpm.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1035,7 +1035,7 @@ ssize_t tpm_write(struct file *file, con
-
- mutex_lock(&chip->buffer_mutex);
-
-- if (in_size > TPM_BUFSIZE)
-+ if (in_size > (unsigned int)TPM_BUFSIZE)
- in_size = TPM_BUFSIZE;
-
- if (copy_from_user
-diff -urNp linux-2.6.28.7/drivers/char/vt_ioctl.c linux-2.6.28.7/drivers/char/vt_ioctl.c
---- linux-2.6.28.7/drivers/char/vt_ioctl.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/char/vt_ioctl.c 2009-02-21 09:37:48.000000000 -0500
-@@ -96,6 +96,12 @@ do_kdsk_ioctl(int cmd, struct kbentry __
- case KDSKBENT:
- if (!perm)
- return -EPERM;
-+
-+#ifdef CONFIG_GRKERNSEC
-+ if (!capable(CAP_SYS_TTY_CONFIG))
-+ return -EPERM;
-+#endif
-+
- if (!i && v == K_NOSUCHMAP) {
- /* deallocate map */
- key_map = key_maps[s];
-@@ -236,6 +242,13 @@ do_kdgkb_ioctl(int cmd, struct kbsentry
- goto reterr;
- }
-
-+#ifdef CONFIG_GRKERNSEC
-+ if (!capable(CAP_SYS_TTY_CONFIG)) {
-+ ret = -EPERM;
-+ goto reterr;
-+ }
-+#endif
-+
- q = func_table[i];
- first_free = funcbufptr + (funcbufsize - funcbufleft);
- for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++)
-diff -urNp linux-2.6.28.7/drivers/edac/edac_core.h linux-2.6.28.7/drivers/edac/edac_core.h
---- linux-2.6.28.7/drivers/edac/edac_core.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/edac/edac_core.h 2009-02-21 09:37:48.000000000 -0500
-@@ -85,11 +85,11 @@ extern int edac_debug_level;
-
- #else /* !CONFIG_EDAC_DEBUG */
-
--#define debugf0( ... )
--#define debugf1( ... )
--#define debugf2( ... )
--#define debugf3( ... )
--#define debugf4( ... )
-+#define debugf0( ... ) do {} while (0)
-+#define debugf1( ... ) do {} while (0)
-+#define debugf2( ... ) do {} while (0)
-+#define debugf3( ... ) do {} while (0)
-+#define debugf4( ... ) do {} while (0)
-
- #endif /* !CONFIG_EDAC_DEBUG */
-
-diff -urNp linux-2.6.28.7/drivers/firmware/dmi_scan.c linux-2.6.28.7/drivers/firmware/dmi_scan.c
---- linux-2.6.28.7/drivers/firmware/dmi_scan.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/firmware/dmi_scan.c 2009-02-21 09:37:48.000000000 -0500
-@@ -389,11 +389,6 @@ void __init dmi_scan_machine(void)
- }
- }
- else {
-- /*
-- * no iounmap() for that ioremap(); it would be a no-op, but
-- * it's so early in setup that sucker gets confused into doing
-- * what it shouldn't if we actually call it.
-- */
- p = dmi_ioremap(0xF0000, 0x10000);
- if (p == NULL)
- goto error;
-diff -urNp linux-2.6.28.7/drivers/hwmon/fscpos.c linux-2.6.28.7/drivers/hwmon/fscpos.c
---- linux-2.6.28.7/drivers/hwmon/fscpos.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/hwmon/fscpos.c 2009-02-21 09:37:48.000000000 -0500
-@@ -240,7 +240,6 @@ static ssize_t set_pwm(struct i2c_client
- unsigned long v = simple_strtoul(buf, NULL, 10);
-
- /* Range: 0..255 */
-- if (v < 0) v = 0;
- if (v > 255) v = 255;
-
- mutex_lock(&data->update_lock);
-diff -urNp linux-2.6.28.7/drivers/hwmon/k8temp.c linux-2.6.28.7/drivers/hwmon/k8temp.c
---- linux-2.6.28.7/drivers/hwmon/k8temp.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/hwmon/k8temp.c 2009-02-21 09:37:48.000000000 -0500
-@@ -130,7 +130,7 @@ static DEVICE_ATTR(name, S_IRUGO, show_n
-
- static struct pci_device_id k8temp_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
-- { 0 },
-+ { 0, 0, 0, 0, 0, 0, 0 },
- };
-
- MODULE_DEVICE_TABLE(pci, k8temp_ids);
-diff -urNp linux-2.6.28.7/drivers/hwmon/sis5595.c linux-2.6.28.7/drivers/hwmon/sis5595.c
---- linux-2.6.28.7/drivers/hwmon/sis5595.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/hwmon/sis5595.c 2009-02-21 09:37:48.000000000 -0500
-@@ -698,7 +698,7 @@ static struct sis5595_data *sis5595_upda
-
- static struct pci_device_id sis5595_pci_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, sis5595_pci_ids);
-diff -urNp linux-2.6.28.7/drivers/hwmon/via686a.c linux-2.6.28.7/drivers/hwmon/via686a.c
---- linux-2.6.28.7/drivers/hwmon/via686a.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/hwmon/via686a.c 2009-02-21 09:37:48.000000000 -0500
-@@ -768,7 +768,7 @@ static struct via686a_data *via686a_upda
-
- static struct pci_device_id via686a_pci_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, via686a_pci_ids);
-diff -urNp linux-2.6.28.7/drivers/hwmon/vt8231.c linux-2.6.28.7/drivers/hwmon/vt8231.c
---- linux-2.6.28.7/drivers/hwmon/vt8231.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/hwmon/vt8231.c 2009-02-21 09:37:48.000000000 -0500
-@@ -698,7 +698,7 @@ static struct platform_driver vt8231_dri
-
- static struct pci_device_id vt8231_pci_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, vt8231_pci_ids);
-diff -urNp linux-2.6.28.7/drivers/hwmon/w83791d.c linux-2.6.28.7/drivers/hwmon/w83791d.c
---- linux-2.6.28.7/drivers/hwmon/w83791d.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/hwmon/w83791d.c 2009-02-21 09:37:48.000000000 -0500
-@@ -327,8 +327,8 @@ static int w83791d_detect(struct i2c_cli
- struct i2c_board_info *info);
- static int w83791d_remove(struct i2c_client *client);
-
--static int w83791d_read(struct i2c_client *client, u8 register);
--static int w83791d_write(struct i2c_client *client, u8 register, u8 value);
-+static int w83791d_read(struct i2c_client *client, u8 reg);
-+static int w83791d_write(struct i2c_client *client, u8 reg, u8 value);
- static struct w83791d_data *w83791d_update_device(struct device *dev);
-
- #ifdef DEBUG
-diff -urNp linux-2.6.28.7/drivers/i2c/busses/i2c-i801.c linux-2.6.28.7/drivers/i2c/busses/i2c-i801.c
---- linux-2.6.28.7/drivers/i2c/busses/i2c-i801.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/i2c/busses/i2c-i801.c 2009-02-21 09:37:48.000000000 -0500
-@@ -578,7 +578,7 @@ static struct pci_device_id i801_ids[] =
- { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_4) },
- { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_5) },
- { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PCH_SMBUS) },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE (pci, i801_ids);
-diff -urNp linux-2.6.28.7/drivers/i2c/busses/i2c-piix4.c linux-2.6.28.7/drivers/i2c/busses/i2c-piix4.c
---- linux-2.6.28.7/drivers/i2c/busses/i2c-piix4.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/i2c/busses/i2c-piix4.c 2009-02-21 09:37:48.000000000 -0500
-@@ -123,7 +123,7 @@ static struct dmi_system_id __devinitdat
- .ident = "IBM",
- .matches = { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), },
- },
-- { },
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, NULL)}, NULL },
- };
-
- static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
-@@ -424,7 +424,7 @@ static struct pci_device_id piix4_ids[]
- PCI_DEVICE_ID_SERVERWORKS_CSB6) },
- { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
- PCI_DEVICE_ID_SERVERWORKS_HT1000SB) },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE (pci, piix4_ids);
-diff -urNp linux-2.6.28.7/drivers/i2c/busses/i2c-sis630.c linux-2.6.28.7/drivers/i2c/busses/i2c-sis630.c
---- linux-2.6.28.7/drivers/i2c/busses/i2c-sis630.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/i2c/busses/i2c-sis630.c 2009-02-21 09:37:48.000000000 -0500
-@@ -472,7 +472,7 @@ static struct i2c_adapter sis630_adapter
- static struct pci_device_id sis630_ids[] __devinitdata = {
- { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
- { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC) },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE (pci, sis630_ids);
-diff -urNp linux-2.6.28.7/drivers/i2c/busses/i2c-sis96x.c linux-2.6.28.7/drivers/i2c/busses/i2c-sis96x.c
---- linux-2.6.28.7/drivers/i2c/busses/i2c-sis96x.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/i2c/busses/i2c-sis96x.c 2009-02-21 09:37:48.000000000 -0500
-@@ -248,7 +248,7 @@ static struct i2c_adapter sis96x_adapter
-
- static struct pci_device_id sis96x_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_SMBUS) },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE (pci, sis96x_ids);
-diff -urNp linux-2.6.28.7/drivers/ieee1394/dv1394.c linux-2.6.28.7/drivers/ieee1394/dv1394.c
---- linux-2.6.28.7/drivers/ieee1394/dv1394.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ieee1394/dv1394.c 2009-02-21 09:37:48.000000000 -0500
-@@ -739,7 +739,7 @@ static void frame_prepare(struct video_c
- based upon DIF section and sequence
- */
-
--static void inline
-+static inline void
- frame_put_packet (struct frame *f, struct packet *p)
- {
- int section_type = p->data[0] >> 5; /* section type is in bits 5 - 7 */
-@@ -2177,7 +2177,7 @@ static struct ieee1394_device_id dv1394_
- .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
- .version = AVC_SW_VERSION_ENTRY & 0xffffff
- },
-- { }
-+ { 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(ieee1394, dv1394_id_table);
-diff -urNp linux-2.6.28.7/drivers/ieee1394/eth1394.c linux-2.6.28.7/drivers/ieee1394/eth1394.c
---- linux-2.6.28.7/drivers/ieee1394/eth1394.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ieee1394/eth1394.c 2009-02-21 09:37:48.000000000 -0500
-@@ -451,7 +451,7 @@ static struct ieee1394_device_id eth1394
- .specifier_id = ETHER1394_GASP_SPECIFIER_ID,
- .version = ETHER1394_GASP_VERSION,
- },
-- {}
-+ { 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(ieee1394, eth1394_id_table);
-diff -urNp linux-2.6.28.7/drivers/ieee1394/hosts.c linux-2.6.28.7/drivers/ieee1394/hosts.c
---- linux-2.6.28.7/drivers/ieee1394/hosts.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ieee1394/hosts.c 2009-02-21 09:37:48.000000000 -0500
-@@ -78,6 +78,7 @@ static int dummy_isoctl(struct hpsb_iso
- }
-
- static struct hpsb_host_driver dummy_driver = {
-+ .name = "dummy",
- .transmit_packet = dummy_transmit_packet,
- .devctl = dummy_devctl,
- .isoctl = dummy_isoctl
-diff -urNp linux-2.6.28.7/drivers/ieee1394/ohci1394.c linux-2.6.28.7/drivers/ieee1394/ohci1394.c
---- linux-2.6.28.7/drivers/ieee1394/ohci1394.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ieee1394/ohci1394.c 2009-02-21 09:37:48.000000000 -0500
-@@ -147,9 +147,9 @@ printk(level "%s: " fmt "\n" , OHCI1394_
- printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args)
-
- /* Module Parameters */
--static int phys_dma = 1;
-+static int phys_dma;
- module_param(phys_dma, int, 0444);
--MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 1).");
-+MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 0).");
-
- static void dma_trm_tasklet(unsigned long data);
- static void dma_trm_reset(struct dma_trm_ctx *d);
-@@ -3437,7 +3437,7 @@ static struct pci_device_id ohci1394_pci
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },
-- { 0, },
-+ { 0, 0, 0, 0, 0, 0, 0 },
- };
-
- MODULE_DEVICE_TABLE(pci, ohci1394_pci_tbl);
-diff -urNp linux-2.6.28.7/drivers/ieee1394/raw1394.c linux-2.6.28.7/drivers/ieee1394/raw1394.c
---- linux-2.6.28.7/drivers/ieee1394/raw1394.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ieee1394/raw1394.c 2009-02-21 09:37:48.000000000 -0500
-@@ -2995,7 +2995,7 @@ static struct ieee1394_device_id raw1394
- .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION,
- .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff,
- .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff},
-- {}
-+ { 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(ieee1394, raw1394_id_table);
-diff -urNp linux-2.6.28.7/drivers/ieee1394/sbp2.c linux-2.6.28.7/drivers/ieee1394/sbp2.c
---- linux-2.6.28.7/drivers/ieee1394/sbp2.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ieee1394/sbp2.c 2009-02-21 09:37:48.000000000 -0500
-@@ -290,7 +290,7 @@ static struct ieee1394_device_id sbp2_id
- .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION,
- .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff,
- .version = SBP2_SW_VERSION_ENTRY & 0xffffff},
-- {}
-+ { 0, 0, 0, 0, 0, 0 }
- };
- MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table);
-
-@@ -2110,7 +2110,7 @@ MODULE_DESCRIPTION("IEEE-1394 SBP-2 prot
- MODULE_SUPPORTED_DEVICE(SBP2_DEVICE_NAME);
- MODULE_LICENSE("GPL");
-
--static int sbp2_module_init(void)
-+static int __init sbp2_module_init(void)
- {
- int ret;
-
-diff -urNp linux-2.6.28.7/drivers/ieee1394/video1394.c linux-2.6.28.7/drivers/ieee1394/video1394.c
---- linux-2.6.28.7/drivers/ieee1394/video1394.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/ieee1394/video1394.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1310,7 +1310,7 @@ static struct ieee1394_device_id video13
- .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff,
- .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff
- },
-- { }
-+ { 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(ieee1394, video1394_id_table);
-diff -urNp linux-2.6.28.7/drivers/input/keyboard/atkbd.c linux-2.6.28.7/drivers/input/keyboard/atkbd.c
---- linux-2.6.28.7/drivers/input/keyboard/atkbd.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/input/keyboard/atkbd.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1164,7 +1164,7 @@ static struct serio_device_id atkbd_seri
- .id = SERIO_ANY,
- .extra = SERIO_ANY,
- },
-- { 0 }
-+ { 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
-diff -urNp linux-2.6.28.7/drivers/input/mouse/lifebook.c linux-2.6.28.7/drivers/input/mouse/lifebook.c
---- linux-2.6.28.7/drivers/input/mouse/lifebook.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/input/mouse/lifebook.c 2009-02-21 09:37:48.000000000 -0500
-@@ -110,7 +110,7 @@ static const struct dmi_system_id lifebo
- DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}
- };
-
- static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
-diff -urNp linux-2.6.28.7/drivers/input/mouse/psmouse-base.c linux-2.6.28.7/drivers/input/mouse/psmouse-base.c
---- linux-2.6.28.7/drivers/input/mouse/psmouse-base.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/input/mouse/psmouse-base.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1378,7 +1378,7 @@ static struct serio_device_id psmouse_se
- .id = SERIO_ANY,
- .extra = SERIO_ANY,
- },
-- { 0 }
-+ { 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(serio, psmouse_serio_ids);
-diff -urNp linux-2.6.28.7/drivers/input/mouse/synaptics.c linux-2.6.28.7/drivers/input/mouse/synaptics.c
---- linux-2.6.28.7/drivers/input/mouse/synaptics.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/input/mouse/synaptics.c 2009-02-21 09:37:48.000000000 -0500
-@@ -417,7 +417,7 @@ static void synaptics_process_packet(str
- break;
- case 2:
- if (SYN_MODEL_PEN(priv->model_id))
-- ; /* Nothing, treat a pen as a single finger */
-+ break; /* Nothing, treat a pen as a single finger */
- break;
- case 4 ... 15:
- if (SYN_CAP_PALMDETECT(priv->capabilities))
-@@ -624,7 +624,7 @@ static const struct dmi_system_id toshib
- DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
- #endif
-
-diff -urNp linux-2.6.28.7/drivers/input/mousedev.c linux-2.6.28.7/drivers/input/mousedev.c
---- linux-2.6.28.7/drivers/input/mousedev.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/input/mousedev.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1063,7 +1063,7 @@ static struct input_handler mousedev_han
-
- #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
- static struct miscdevice psaux_mouse = {
-- PSMOUSE_MINOR, "psaux", &mousedev_fops
-+ PSMOUSE_MINOR, "psaux", &mousedev_fops, {NULL, NULL}, NULL, NULL
- };
- static int psaux_registered;
- #endif
-diff -urNp linux-2.6.28.7/drivers/input/serio/i8042-x86ia64io.h linux-2.6.28.7/drivers/input/serio/i8042-x86ia64io.h
---- linux-2.6.28.7/drivers/input/serio/i8042-x86ia64io.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/input/serio/i8042-x86ia64io.h 2009-02-21 09:37:48.000000000 -0500
-@@ -143,7 +143,7 @@ static struct dmi_system_id __initdata i
- DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
-
- /*
-@@ -351,7 +351,7 @@ static struct dmi_system_id __initdata i
- DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
-
- #ifdef CONFIG_PNP
-@@ -363,7 +363,7 @@ static struct dmi_system_id __initdata i
- DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
- #endif
-
-@@ -430,7 +430,7 @@ static struct dmi_system_id __initdata i
- DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
- },
- },
-- { }
-+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
- };
-
- #endif /* CONFIG_X86 */
-diff -urNp linux-2.6.28.7/drivers/input/serio/serio_raw.c linux-2.6.28.7/drivers/input/serio/serio_raw.c
---- linux-2.6.28.7/drivers/input/serio/serio_raw.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/input/serio/serio_raw.c 2009-02-21 09:37:48.000000000 -0500
-@@ -378,7 +378,7 @@ static struct serio_device_id serio_raw_
- .id = SERIO_ANY,
- .extra = SERIO_ANY,
- },
-- { 0 }
-+ { 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids);
-diff -urNp linux-2.6.28.7/drivers/md/bitmap.c linux-2.6.28.7/drivers/md/bitmap.c
---- linux-2.6.28.7/drivers/md/bitmap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/md/bitmap.c 2009-02-21 09:37:48.000000000 -0500
-@@ -57,7 +57,7 @@
- # if DEBUG > 0
- # define PRINTK(x...) printk(KERN_DEBUG x)
- # else
--# define PRINTK(x...)
-+# define PRINTK(x...) do {} while (0)
- # endif
- #endif
-
-diff -urNp linux-2.6.28.7/drivers/mtd/devices/doc2000.c linux-2.6.28.7/drivers/mtd/devices/doc2000.c
---- linux-2.6.28.7/drivers/mtd/devices/doc2000.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/mtd/devices/doc2000.c 2009-02-21 09:37:48.000000000 -0500
-@@ -777,7 +777,7 @@ static int doc_write(struct mtd_info *mt
-
- /* The ECC will not be calculated correctly if less than 512 is written */
- /* DBB-
-- if (len != 0x200 && eccbuf)
-+ if (len != 0x200)
- printk(KERN_WARNING
- "ECC needs a full sector write (adr: %lx size %lx)\n",
- (long) to, (long) len);
-diff -urNp linux-2.6.28.7/drivers/mtd/devices/doc2001.c linux-2.6.28.7/drivers/mtd/devices/doc2001.c
---- linux-2.6.28.7/drivers/mtd/devices/doc2001.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/mtd/devices/doc2001.c 2009-02-21 09:37:48.000000000 -0500
-@@ -396,6 +396,8 @@ static int doc_read (struct mtd_info *mt
- /* Don't allow read past end of device */
- if (from >= this->totlen)
- return -EINVAL;
-+ if (!len)
-+ return -EINVAL;
-
- /* Don't allow a single read to cross a 512-byte block boundary */
- if (from + len > ((from | 0x1ff) + 1))
-diff -urNp linux-2.6.28.7/drivers/mtd/devices/slram.c linux-2.6.28.7/drivers/mtd/devices/slram.c
---- linux-2.6.28.7/drivers/mtd/devices/slram.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/mtd/devices/slram.c 2009-02-21 09:37:48.000000000 -0500
-@@ -273,7 +273,7 @@ static int parse_cmdline(char *devname,
- }
- T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n",
- devname, devstart, devlength);
-- if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) {
-+ if (devlength % SLRAM_BLK_SZ != 0) {
- E("slram: Illegal start / length parameter.\n");
- return(-EINVAL);
- }
-diff -urNp linux-2.6.28.7/drivers/mtd/ubi/build.c linux-2.6.28.7/drivers/mtd/ubi/build.c
---- linux-2.6.28.7/drivers/mtd/ubi/build.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/mtd/ubi/build.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1104,7 +1104,7 @@ static int __init bytes_str_to_int(const
- unsigned long result;
-
- result = simple_strtoul(str, &endp, 0);
-- if (str == endp || result < 0) {
-+ if (str == endp) {
- printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n",
- str);
- return -EINVAL;
-diff -urNp linux-2.6.28.7/drivers/net/eepro100.c linux-2.6.28.7/drivers/net/eepro100.c
---- linux-2.6.28.7/drivers/net/eepro100.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/net/eepro100.c 2009-02-21 09:37:48.000000000 -0500
-@@ -47,7 +47,7 @@ static int rxdmacount /* = 0 */;
- # define rx_align(skb) skb_reserve((skb), 2)
- # define RxFD_ALIGNMENT __attribute__ ((aligned (2), packed))
- #else
--# define rx_align(skb)
-+# define rx_align(skb) do {} while (0)
- # define RxFD_ALIGNMENT
- #endif
-
-@@ -2334,33 +2334,33 @@ static void __devexit eepro100_remove_on
- }
-
- static struct pci_device_id eepro100_pci_tbl[] = {
-- { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, },
-- { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, },
-- { 0,}
-+ { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
- MODULE_DEVICE_TABLE(pci, eepro100_pci_tbl);
-
-diff -urNp linux-2.6.28.7/drivers/net/irda/vlsi_ir.c linux-2.6.28.7/drivers/net/irda/vlsi_ir.c
---- linux-2.6.28.7/drivers/net/irda/vlsi_ir.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/net/irda/vlsi_ir.c 2009-02-21 09:37:48.000000000 -0500
-@@ -906,13 +906,12 @@ static int vlsi_hard_start_xmit(struct s
- /* no race - tx-ring already empty */
- vlsi_set_baud(idev, iobase);
- netif_wake_queue(ndev);
-- }
-- else
-- ;
-+ } else {
- /* keep the speed change pending like it would
- * for any len>0 packet. tx completion interrupt
- * will apply it when the tx ring becomes empty.
- */
-+ }
- spin_unlock_irqrestore(&idev->lock, flags);
- dev_kfree_skb_any(skb);
- return 0;
-diff -urNp linux-2.6.28.7/drivers/net/pcnet32.c linux-2.6.28.7/drivers/net/pcnet32.c
---- linux-2.6.28.7/drivers/net/pcnet32.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/net/pcnet32.c 2009-02-21 09:37:48.000000000 -0500
-@@ -78,7 +78,7 @@ static int cards_found;
- /*
- * VLB I/O addresses
- */
--static unsigned int pcnet32_portlist[] __initdata =
-+static unsigned int pcnet32_portlist[] __devinitdata =
- { 0x300, 0x320, 0x340, 0x360, 0 };
-
- static int pcnet32_debug = 0;
-diff -urNp linux-2.6.28.7/drivers/net/tg3.h linux-2.6.28.7/drivers/net/tg3.h
---- linux-2.6.28.7/drivers/net/tg3.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/net/tg3.h 2009-02-21 09:37:48.000000000 -0500
-@@ -102,6 +102,7 @@
- #define CHIPREV_ID_5750_A0 0x4000
- #define CHIPREV_ID_5750_A1 0x4001
- #define CHIPREV_ID_5750_A3 0x4003
-+#define CHIPREV_ID_5750_C1 0x4201
- #define CHIPREV_ID_5750_C2 0x4202
- #define CHIPREV_ID_5752_A0_HW 0x5000
- #define CHIPREV_ID_5752_A0 0x6000
-diff -urNp linux-2.6.28.7/drivers/net/wireless/iwlwifi/iwl3945-base.c linux-2.6.28.7/drivers/net/wireless/iwlwifi/iwl3945-base.c
---- linux-2.6.28.7/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-21 09:37:48.000000000 -0500
-@@ -785,7 +785,7 @@ static int iwl3945_send_cmd_sync(struct
- IWL_ERROR("Error: Response NULL in '%s'\n",
- get_cmd_string(cmd->id));
- ret = -EIO;
-- goto out;
-+ goto cancel;
- }
-
- ret = 0;
-diff -urNp linux-2.6.28.7/drivers/pci/hotplug/cpqphp_nvram.c linux-2.6.28.7/drivers/pci/hotplug/cpqphp_nvram.c
---- linux-2.6.28.7/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-21 09:37:48.000000000 -0500
-@@ -425,9 +425,13 @@ static u32 store_HRT (void __iomem *rom_
-
- void compaq_nvram_init (void __iomem *rom_start)
- {
-+
-+#ifndef CONFIG_PAX_KERNEXEC
- if (rom_start) {
- compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
- }
-+#endif
-+
- dbg("int15 entry = %p\n", compaq_int15_entry_point);
-
- /* initialize our int15 lock */
-diff -urNp linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv.c linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv.c
---- linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv.c 2009-02-21 09:37:48.000000000 -0500
-@@ -59,7 +59,7 @@ static struct pcie_port_service_id aer_i
- .port_type = PCIE_RC_PORT,
- .service_type = PCIE_PORT_SERVICE_AER,
- },
-- { /* end: all zeroes */ }
-+ { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
- };
-
- static struct pci_error_handlers aer_error_handlers = {
-diff -urNp linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv_core.c linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv_core.c
---- linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv_core.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pci/pcie/aer/aerdrv_core.c 2009-02-21 09:37:48.000000000 -0500
-@@ -637,7 +637,7 @@ static void aer_isr_one_error(struct pci
- struct aer_err_source *e_src)
- {
- struct device *s_device;
-- struct aer_err_info e_info = {0, 0, 0,};
-+ struct aer_err_info e_info = {0, 0, 0, {0, 0, 0, 0}};
- int i;
- u16 id;
-
-diff -urNp linux-2.6.28.7/drivers/pci/pcie/portdrv_pci.c linux-2.6.28.7/drivers/pci/pcie/portdrv_pci.c
---- linux-2.6.28.7/drivers/pci/pcie/portdrv_pci.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pci/pcie/portdrv_pci.c 2009-02-21 09:37:48.000000000 -0500
-@@ -264,7 +264,7 @@ static void pcie_portdrv_err_resume(stru
- static const struct pci_device_id port_pci_ids[] = { {
- /* handle any PCI-Express port */
- PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0),
-- }, { /* end: all zeroes */ }
-+ }, { 0, 0, 0, 0, 0, 0, 0 }
- };
- MODULE_DEVICE_TABLE(pci, port_pci_ids);
-
-diff -urNp linux-2.6.28.7/drivers/pci/proc.c linux-2.6.28.7/drivers/pci/proc.c
---- linux-2.6.28.7/drivers/pci/proc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pci/proc.c 2009-02-21 09:37:48.000000000 -0500
-@@ -470,7 +470,16 @@ static const struct file_operations proc
- static int __init pci_proc_init(void)
- {
- struct pci_dev *dev = NULL;
-+
-+#ifdef CONFIG_GRKERNSEC_PROC_ADD
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
-+#endif
-+#else
- proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
-+#endif
- proc_create("devices", 0, proc_bus_pci_dir,
- &proc_bus_pci_dev_operations);
- proc_initialized = 1;
-diff -urNp linux-2.6.28.7/drivers/pcmcia/ti113x.h linux-2.6.28.7/drivers/pcmcia/ti113x.h
---- linux-2.6.28.7/drivers/pcmcia/ti113x.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pcmcia/ti113x.h 2009-02-21 09:37:48.000000000 -0500
-@@ -903,7 +903,7 @@ static struct pci_device_id ene_tune_tbl
- DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID,
- ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE),
-
-- {}
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus)
-diff -urNp linux-2.6.28.7/drivers/pcmcia/yenta_socket.c linux-2.6.28.7/drivers/pcmcia/yenta_socket.c
---- linux-2.6.28.7/drivers/pcmcia/yenta_socket.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pcmcia/yenta_socket.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1366,7 +1366,7 @@ static struct pci_device_id yenta_table
-
- /* match any cardbus bridge */
- CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
-- { /* all zeroes */ }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
- MODULE_DEVICE_TABLE(pci, yenta_table);
-
-diff -urNp linux-2.6.28.7/drivers/pnp/pnpbios/bioscalls.c linux-2.6.28.7/drivers/pnp/pnpbios/bioscalls.c
---- linux-2.6.28.7/drivers/pnp/pnpbios/bioscalls.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pnp/pnpbios/bioscalls.c 2009-02-21 09:37:48.000000000 -0500
-@@ -60,7 +60,7 @@ set_base(gdt[(selname) >> 3], (u32)(addr
- set_limit(gdt[(selname) >> 3], size); \
- } while(0)
-
--static struct desc_struct bad_bios_desc;
-+static struct desc_struct bad_bios_desc __read_only;
-
- /*
- * At some point we want to use this stack frame pointer to unwind
-@@ -87,6 +87,10 @@ static inline u16 call_pnp_bios(u16 func
- struct desc_struct save_desc_40;
- int cpu;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- /*
- * PnP BIOSes are generally not terribly re-entrant.
- * Also, don't rely on them to save everything correctly.
-@@ -96,8 +100,17 @@ static inline u16 call_pnp_bios(u16 func
-
- cpu = get_cpu();
- save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- /* On some boxes IRQ's during PnP BIOS calls are deadly. */
- spin_lock_irqsave(&pnp_bios_lock, flags);
-
-@@ -134,7 +147,16 @@ static inline u16 call_pnp_bios(u16 func
- :"memory");
- spin_unlock_irqrestore(&pnp_bios_lock, flags);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- put_cpu();
-
- /* If we get here and this is set then the PnP BIOS faulted on us. */
-@@ -468,16 +490,24 @@ int pnp_bios_read_escd(char *data, u32 n
- return status;
- }
-
--void pnpbios_calls_init(union pnp_bios_install_struct *header)
-+void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
- {
- int i;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- spin_lock_init(&pnp_bios_lock);
- pnp_bios_callpoint.offset = header->fields.pm16offset;
- pnp_bios_callpoint.segment = PNP_CS16;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- bad_bios_desc.a = 0;
-- bad_bios_desc.b = 0x00409200;
-+ bad_bios_desc.b = 0x00409300;
-
- set_base(bad_bios_desc, __va((unsigned long)0x40 << 4));
- _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4));
-@@ -491,4 +521,9 @@ void pnpbios_calls_init(union pnp_bios_i
- set_base(gdt[GDT_ENTRY_PNPBIOS_DS],
- __va(header->fields.pm16dseg));
- }
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- }
-diff -urNp linux-2.6.28.7/drivers/pnp/quirks.c linux-2.6.28.7/drivers/pnp/quirks.c
---- linux-2.6.28.7/drivers/pnp/quirks.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pnp/quirks.c 2009-02-21 09:37:48.000000000 -0500
-@@ -327,7 +327,7 @@ static struct pnp_fixup pnp_fixups[] = {
- /* PnP resources that might overlap PCI BARs */
- {"PNP0c01", quirk_system_pci_resources},
- {"PNP0c02", quirk_system_pci_resources},
-- {""}
-+ {"", NULL}
- };
-
- void pnp_fixup_device(struct pnp_dev *dev)
-diff -urNp linux-2.6.28.7/drivers/pnp/resource.c linux-2.6.28.7/drivers/pnp/resource.c
---- linux-2.6.28.7/drivers/pnp/resource.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/pnp/resource.c 2009-02-21 09:37:48.000000000 -0500
-@@ -355,7 +355,7 @@ int pnp_check_irq(struct pnp_dev *dev, s
- return 1;
-
- /* check if the resource is valid */
-- if (*irq < 0 || *irq > 15)
-+ if (*irq > 15)
- return 0;
-
- /* check if the resource is reserved */
-@@ -419,7 +419,7 @@ int pnp_check_dma(struct pnp_dev *dev, s
- return 1;
-
- /* check if the resource is valid */
-- if (*dma < 0 || *dma == 4 || *dma > 7)
-+ if (*dma == 4 || *dma > 7)
- return 0;
-
- /* check if the resource is reserved */
-diff -urNp linux-2.6.28.7/drivers/scsi/scsi_logging.h linux-2.6.28.7/drivers/scsi/scsi_logging.h
---- linux-2.6.28.7/drivers/scsi/scsi_logging.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/scsi/scsi_logging.h 2009-02-21 09:37:48.000000000 -0500
-@@ -51,7 +51,7 @@ do { \
- } while (0); \
- } while (0)
- #else
--#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD)
-+#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) do {} while (0)
- #endif /* CONFIG_SCSI_LOGGING */
-
- /*
-diff -urNp linux-2.6.28.7/drivers/serial/8250_pci.c linux-2.6.28.7/drivers/serial/8250_pci.c
---- linux-2.6.28.7/drivers/serial/8250_pci.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/serial/8250_pci.c 2009-02-21 09:37:48.000000000 -0500
-@@ -3102,7 +3102,7 @@ static struct pci_device_id serial_pci_t
- PCI_ANY_ID, PCI_ANY_ID,
- PCI_CLASS_COMMUNICATION_MULTISERIAL << 8,
- 0xffff00, pbn_default },
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- static struct pci_driver serial_pci_driver = {
-diff -urNp linux-2.6.28.7/drivers/usb/class/cdc-acm.c linux-2.6.28.7/drivers/usb/class/cdc-acm.c
---- linux-2.6.28.7/drivers/usb/class/cdc-acm.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/usb/class/cdc-acm.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1386,7 +1386,7 @@ static struct usb_device_id acm_ids[] =
- USB_CDC_ACM_PROTO_AT_CDMA) },
-
- /* NOTE: COMM/ACM/0xff is likely MSFT RNDIS ... NOT a modem!! */
-- { }
-+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE (usb, acm_ids);
-diff -urNp linux-2.6.28.7/drivers/usb/class/usblp.c linux-2.6.28.7/drivers/usb/class/usblp.c
---- linux-2.6.28.7/drivers/usb/class/usblp.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/usb/class/usblp.c 2009-02-21 09:37:48.000000000 -0500
-@@ -227,7 +227,7 @@ static const struct quirk_printer_struct
- { 0x0409, 0xf1be, USBLP_QUIRK_BIDIR }, /* NEC Picty800 (HP OEM) */
- { 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut <kernel@zut.de> */
- { 0x04b8, 0x0202, USBLP_QUIRK_BAD_CLASS }, /* Seiko Epson Receipt Printer M129C */
-- { 0, 0 }
-+ { 0, 0, 0 }
- };
-
- static int usblp_wwait(struct usblp *usblp, int nonblock);
-@@ -1402,7 +1402,7 @@ static struct usb_device_id usblp_ids []
- { USB_INTERFACE_INFO(7, 1, 2) },
- { USB_INTERFACE_INFO(7, 1, 3) },
- { USB_DEVICE(0x04b8, 0x0202) }, /* Seiko Epson Receipt Printer M129C */
-- { } /* Terminating entry */
-+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */
- };
-
- MODULE_DEVICE_TABLE (usb, usblp_ids);
-diff -urNp linux-2.6.28.7/drivers/usb/core/hub.c linux-2.6.28.7/drivers/usb/core/hub.c
---- linux-2.6.28.7/drivers/usb/core/hub.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/usb/core/hub.c 2009-02-21 09:37:48.000000000 -0500
-@@ -3194,7 +3194,7 @@ static struct usb_device_id hub_id_table
- .bDeviceClass = USB_CLASS_HUB},
- { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
- .bInterfaceClass = USB_CLASS_HUB},
-- { } /* Terminating entry */
-+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */
- };
-
- MODULE_DEVICE_TABLE (usb, hub_id_table);
-diff -urNp linux-2.6.28.7/drivers/usb/host/ehci-pci.c linux-2.6.28.7/drivers/usb/host/ehci-pci.c
---- linux-2.6.28.7/drivers/usb/host/ehci-pci.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/usb/host/ehci-pci.c 2009-02-21 09:37:48.000000000 -0500
-@@ -414,7 +414,7 @@ static const struct pci_device_id pci_id
- PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0),
- .driver_data = (unsigned long) &ehci_pci_hc_driver,
- },
-- { /* end: all zeroes */ }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
- MODULE_DEVICE_TABLE(pci, pci_ids);
-
-diff -urNp linux-2.6.28.7/drivers/usb/host/uhci-hcd.c linux-2.6.28.7/drivers/usb/host/uhci-hcd.c
---- linux-2.6.28.7/drivers/usb/host/uhci-hcd.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/usb/host/uhci-hcd.c 2009-02-21 09:37:48.000000000 -0500
-@@ -927,7 +927,7 @@ static const struct pci_device_id uhci_p
- /* handle any USB UHCI controller */
- PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0),
- .driver_data = (unsigned long) &uhci_driver,
-- }, { /* end: all zeroes */ }
-+ }, { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, uhci_pci_ids);
-diff -urNp linux-2.6.28.7/drivers/usb/storage/debug.h linux-2.6.28.7/drivers/usb/storage/debug.h
---- linux-2.6.28.7/drivers/usb/storage/debug.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/usb/storage/debug.h 2009-02-21 09:37:48.000000000 -0500
-@@ -54,9 +54,9 @@ void usb_stor_show_sense( unsigned char
- #define US_DEBUGPX(x...) printk( x )
- #define US_DEBUG(x) x
- #else
--#define US_DEBUGP(x...)
--#define US_DEBUGPX(x...)
--#define US_DEBUG(x)
-+#define US_DEBUGP(x...) do {} while (0)
-+#define US_DEBUGPX(x...) do {} while (0)
-+#define US_DEBUG(x) do {} while (0)
- #endif
-
- #endif
-diff -urNp linux-2.6.28.7/drivers/usb/storage/usb.c linux-2.6.28.7/drivers/usb/storage/usb.c
---- linux-2.6.28.7/drivers/usb/storage/usb.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/usb/storage/usb.c 2009-02-21 09:37:48.000000000 -0500
-@@ -139,7 +139,7 @@ static struct usb_device_id storage_usb_
- #undef COMPLIANT_DEV
- #undef USUAL_DEV
- /* Terminating entry */
-- { }
-+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE (usb, storage_usb_ids);
-@@ -182,7 +182,7 @@ static struct us_unusual_dev us_unusual_
- # undef USUAL_DEV
-
- /* Terminating entry */
-- { NULL }
-+ { NULL, NULL, 0, 0, NULL }
- };
-
-
-diff -urNp linux-2.6.28.7/drivers/uwb/wlp/messages.c linux-2.6.28.7/drivers/uwb/wlp/messages.c
---- linux-2.6.28.7/drivers/uwb/wlp/messages.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/uwb/wlp/messages.c 2009-02-21 09:37:48.000000000 -0500
-@@ -988,7 +988,7 @@ int wlp_parse_f0(struct wlp *wlp, struct
- size_t len = skb->len;
- size_t used;
- ssize_t result;
-- struct wlp_nonce enonce, rnonce;
-+ struct wlp_nonce enonce = {{0}}, rnonce = {{0}};
- enum wlp_assc_error assc_err;
- char enonce_buf[WLP_WSS_NONCE_STRSIZE];
- char rnonce_buf[WLP_WSS_NONCE_STRSIZE];
-diff -urNp linux-2.6.28.7/drivers/video/fbcmap.c linux-2.6.28.7/drivers/video/fbcmap.c
---- linux-2.6.28.7/drivers/video/fbcmap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/fbcmap.c 2009-02-21 09:37:48.000000000 -0500
-@@ -250,8 +250,7 @@ int fb_set_user_cmap(struct fb_cmap_user
- int rc, size = cmap->len * sizeof(u16);
- struct fb_cmap umap;
-
-- if (cmap->start < 0 || (!info->fbops->fb_setcolreg &&
-- !info->fbops->fb_setcmap))
-+ if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap)
- return -EINVAL;
-
- memset(&umap, 0, sizeof(struct fb_cmap));
-diff -urNp linux-2.6.28.7/drivers/video/fbmem.c linux-2.6.28.7/drivers/video/fbmem.c
---- linux-2.6.28.7/drivers/video/fbmem.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/fbmem.c 2009-02-21 09:37:48.000000000 -0500
-@@ -393,7 +393,7 @@ static void fb_do_show_logo(struct fb_in
- image->dx += image->width + 8;
- }
- } else if (rotate == FB_ROTATE_UD) {
-- for (x = 0; x < num && image->dx >= 0; x++) {
-+ for (x = 0; x < num && (__s32)image->dx >= 0; x++) {
- info->fbops->fb_imageblit(info, image);
- image->dx -= image->width + 8;
- }
-@@ -405,7 +405,7 @@ static void fb_do_show_logo(struct fb_in
- image->dy += image->height + 8;
- }
- } else if (rotate == FB_ROTATE_CCW) {
-- for (x = 0; x < num && image->dy >= 0; x++) {
-+ for (x = 0; x < num && (__s32)image->dy >= 0; x++) {
- info->fbops->fb_imageblit(info, image);
- image->dy -= image->height + 8;
- }
-@@ -1090,7 +1090,7 @@ static long do_fb_ioctl(struct fb_info *
- ret = -EINVAL;
- break;
- }
-- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) {
-+ if (con2fb.framebuffer >= FB_MAX) {
- ret = -EINVAL;
- break;
- }
-diff -urNp linux-2.6.28.7/drivers/video/fbmon.c linux-2.6.28.7/drivers/video/fbmon.c
---- linux-2.6.28.7/drivers/video/fbmon.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/fbmon.c 2009-02-21 09:37:48.000000000 -0500
-@@ -45,7 +45,7 @@
- #ifdef DEBUG
- #define DPRINTK(fmt, args...) printk(fmt,## args)
- #else
--#define DPRINTK(fmt, args...)
-+#define DPRINTK(fmt, args...) do {} while (0)
- #endif
-
- #define FBMON_FIX_HEADER 1
-diff -urNp linux-2.6.28.7/drivers/video/i810/i810_accel.c linux-2.6.28.7/drivers/video/i810/i810_accel.c
---- linux-2.6.28.7/drivers/video/i810/i810_accel.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/i810/i810_accel.c 2009-02-21 09:37:48.000000000 -0500
-@@ -73,6 +73,7 @@ static inline int wait_for_space(struct
- }
- }
- printk("ringbuffer lockup!!!\n");
-+ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
- i810_report_error(mmio);
- par->dev_flags |= LOCKUP;
- info->pixmap.scan_align = 1;
-diff -urNp linux-2.6.28.7/drivers/video/i810/i810_main.c linux-2.6.28.7/drivers/video/i810/i810_main.c
---- linux-2.6.28.7/drivers/video/i810/i810_main.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/i810/i810_main.c 2009-02-21 09:37:48.000000000 -0500
-@@ -120,7 +120,7 @@ static struct pci_device_id i810fb_pci_t
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
- { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
-- { 0 },
-+ { 0, 0, 0, 0, 0, 0, 0 },
- };
-
- static struct pci_driver i810fb_driver = {
-@@ -1509,7 +1509,7 @@ static int i810fb_cursor(struct fb_info
- int size = ((cursor->image.width + 7) >> 3) *
- cursor->image.height;
- int i;
-- u8 *data = kmalloc(64 * 8, GFP_ATOMIC);
-+ u8 *data = kmalloc(64 * 8, GFP_KERNEL);
-
- if (data == NULL)
- return -ENOMEM;
-diff -urNp linux-2.6.28.7/drivers/video/modedb.c linux-2.6.28.7/drivers/video/modedb.c
---- linux-2.6.28.7/drivers/video/modedb.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/modedb.c 2009-02-21 09:37:48.000000000 -0500
-@@ -38,232 +38,232 @@ static const struct fb_videomode modedb[
- {
- /* 640x400 @ 70 Hz, 31.5 kHz hsync */
- NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 640x480 @ 60 Hz, 31.5 kHz hsync */
- NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 800x600 @ 56 Hz, 35.15 kHz hsync */
- NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
- NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
-- 0, FB_VMODE_INTERLACED
-+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 640x400 @ 85 Hz, 37.86 kHz hsync */
- NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
-- FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 640x480 @ 72 Hz, 36.5 kHz hsync */
- NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 640x480 @ 75 Hz, 37.50 kHz hsync */
- NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 800x600 @ 60 Hz, 37.8 kHz hsync */
- NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 640x480 @ 85 Hz, 43.27 kHz hsync */
- NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
- NULL, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
-- 0, FB_VMODE_INTERLACED
-+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 800x600 @ 72 Hz, 48.0 kHz hsync */
- NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1024x768 @ 60 Hz, 48.4 kHz hsync */
- NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 640x480 @ 100 Hz, 53.01 kHz hsync */
- NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1152x864 @ 60 Hz, 53.5 kHz hsync */
- NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 800x600 @ 85 Hz, 55.84 kHz hsync */
- NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1024x768 @ 70 Hz, 56.5 kHz hsync */
- NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
- NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
-- 0, FB_VMODE_INTERLACED
-+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 800x600 @ 100 Hz, 64.02 kHz hsync */
- NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1024x768 @ 76 Hz, 62.5 kHz hsync */
- NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1152x864 @ 70 Hz, 62.4 kHz hsync */
- NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
- NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1400x1050 @ 60Hz, 63.9 kHz hsync */
- NULL, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
- NULL, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
- NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1024x768 @ 85 Hz, 70.24 kHz hsync */
- NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1152x864 @ 78 Hz, 70.8 kHz hsync */
- NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
- NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1600x1200 @ 60Hz, 75.00 kHz hsync */
- NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1152x864 @ 84 Hz, 76.0 kHz hsync */
- NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
- NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1024x768 @ 100Hz, 80.21 kHz hsync */
- NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
- NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
- NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1152x864 @ 100 Hz, 89.62 kHz hsync */
- NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
- NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
- NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
- NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
- NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
- NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1800x1440 @ 64Hz, 96.15 kHz hsync */
- NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1800x1440 @ 70Hz, 104.52 kHz hsync */
- NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 512x384 @ 78 Hz, 31.50 kHz hsync */
- NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 512x384 @ 85 Hz, 34.38 kHz hsync */
- NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
- NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
- NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 320x240 @ 72 Hz, 36.5 kHz hsync */
- NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
- NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 400x300 @ 60 Hz, 37.8 kHz hsync */
- NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 400x300 @ 72 Hz, 48.0 kHz hsync */
- NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
- NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 480x300 @ 60 Hz, 37.8 kHz hsync */
- NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 480x300 @ 63 Hz, 39.6 kHz hsync */
- NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 480x300 @ 72 Hz, 48.0 kHz hsync */
- NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
-- 0, FB_VMODE_DOUBLE
-+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
- }, {
- /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */
- NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3,
- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
-- FB_VMODE_NONINTERLACED
-+ FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
- NULL, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6,
-- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
- NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- }, {
- /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */
- NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3,
-- 0, FB_VMODE_NONINTERLACED
-+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
- },
- };
-
-diff -urNp linux-2.6.28.7/drivers/video/uvesafb.c linux-2.6.28.7/drivers/video/uvesafb.c
---- linux-2.6.28.7/drivers/video/uvesafb.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/uvesafb.c 2009-02-21 09:37:48.000000000 -0500
-@@ -18,6 +18,7 @@
- #include <linux/fb.h>
- #include <linux/io.h>
- #include <linux/mutex.h>
-+#include <linux/moduleloader.h>
- #include <video/edid.h>
- #include <video/uvesafb.h>
- #ifdef CONFIG_X86
-@@ -117,7 +118,7 @@ static int uvesafb_helper_start(void)
- NULL,
- };
-
-- return call_usermodehelper(v86d_path, argv, envp, 1);
-+ return call_usermodehelper(v86d_path, argv, envp, UMH_WAIT_PROC);
- }
-
- /*
-@@ -574,10 +575,34 @@ static int __devinit uvesafb_vbe_getpmi(
- if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
- par->pmi_setpal = par->ypan = 0;
- } else {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+#ifdef CONFIG_MODULES
-+ unsigned long cr0;
-+
-+ par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
-+#endif
-+ if (!par->pmi_code) {
-+ par->pmi_setpal = par->ypan = 0;
-+ return 0;
-+ }
-+#endif
-+
- par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
- + task->t.regs.edi);
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ pax_open_kernel(cr0);
-+ memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
-+ pax_close_kernel(cr0);
-+
-+ par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
-+ par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
-+#else
- par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
- par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
-+#endif
-+
- printk(KERN_INFO "uvesafb: protected mode interface info at "
- "%04x:%04x\n",
- (u16)task->t.regs.es, (u16)task->t.regs.edi);
-@@ -1832,6 +1857,11 @@ out:
- if (par->vbe_modes)
- kfree(par->vbe_modes);
-
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ if (par->pmi_code)
-+ module_free_exec(NULL, par->pmi_code);
-+#endif
-+
- framebuffer_release(info);
- return err;
- }
-@@ -1858,6 +1888,12 @@ static int uvesafb_remove(struct platfor
- kfree(par->vbe_state_orig);
- if (par->vbe_state_saved)
- kfree(par->vbe_state_saved);
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ if (par->pmi_code)
-+ module_free_exec(NULL, par->pmi_code);
-+#endif
-+
- }
-
- framebuffer_release(info);
-diff -urNp linux-2.6.28.7/drivers/video/vesafb.c linux-2.6.28.7/drivers/video/vesafb.c
---- linux-2.6.28.7/drivers/video/vesafb.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/drivers/video/vesafb.c 2009-02-21 09:37:48.000000000 -0500
-@@ -9,6 +9,7 @@
- */
-
- #include <linux/module.h>
-+#include <linux/moduleloader.h>
- #include <linux/kernel.h>
- #include <linux/errno.h>
- #include <linux/string.h>
-@@ -53,8 +54,8 @@ static int vram_remap __initdata; /*
- static int vram_total __initdata; /* Set total amount of memory */
- static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
- static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
--static void (*pmi_start)(void) __read_mostly;
--static void (*pmi_pal) (void) __read_mostly;
-+static void (*pmi_start)(void) __read_only;
-+static void (*pmi_pal) (void) __read_only;
- static int depth __read_mostly;
- static int vga_compat __read_mostly;
- /* --------------------------------------------------------------------- */
-@@ -224,6 +225,7 @@ static int __init vesafb_probe(struct pl
- unsigned int size_vmode;
- unsigned int size_remap;
- unsigned int size_total;
-+ void *pmi_code = NULL;
-
- if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
- return -ENODEV;
-@@ -266,10 +268,6 @@ static int __init vesafb_probe(struct pl
- size_remap = size_total;
- vesafb_fix.smem_len = size_remap;
-
--#ifndef __i386__
-- screen_info.vesapm_seg = 0;
--#endif
--
- if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
- printk(KERN_WARNING
- "vesafb: cannot reserve video memory at 0x%lx\n",
-@@ -302,9 +300,21 @@ static int __init vesafb_probe(struct pl
- printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
- vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
-
-+#ifdef __i386__
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ pmi_code = module_alloc_exec(screen_info.vesapm_size);
-+ if (!pmi_code)
-+#elif !defined(CONFIG_PAX_KERNEXEC)
-+ if (0)
-+#endif
-+
-+#endif
-+ screen_info.vesapm_seg = 0;
-+
- if (screen_info.vesapm_seg) {
-- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
-- screen_info.vesapm_seg,screen_info.vesapm_off);
-+ printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
-+ screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
- }
-
- if (screen_info.vesapm_seg < 0xc000)
-@@ -312,9 +322,29 @@ static int __init vesafb_probe(struct pl
-
- if (ypan || pmi_setpal) {
- unsigned short *pmi_base;
-- pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
-- pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
-- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ unsigned long cr0;
-+#endif
-+
-+ pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ pax_open_kernel(cr0);
-+ memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
-+#else
-+ pmi_code = pmi_base;
-+#endif
-+
-+ pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
-+ pmi_pal = (void*)((char*)pmi_code + pmi_base[2]);
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ pmi_start = ktva_ktla(pmi_start);
-+ pmi_pal = ktva_ktla(pmi_pal);
-+ pax_close_kernel(cr0);
-+#endif
-+
- printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
- if (pmi_base[3]) {
- printk(KERN_INFO "vesafb: pmi: ports = ");
-@@ -456,6 +486,11 @@ static int __init vesafb_probe(struct pl
- info->node, info->fix.id);
- return 0;
- err:
-+
-+#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
-+ module_free_exec(NULL, pmi_code);
-+#endif
-+
- if (info->screen_base)
- iounmap(info->screen_base);
- framebuffer_release(info);
-diff -urNp linux-2.6.28.7/fs/9p/vfs_inode.c linux-2.6.28.7/fs/9p/vfs_inode.c
---- linux-2.6.28.7/fs/9p/vfs_inode.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/9p/vfs_inode.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1021,7 +1021,7 @@ static void *v9fs_vfs_follow_link(struct
- static void
- v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
- {
-- char *s = nd_get_link(nd);
-+ const char *s = nd_get_link(nd);
-
- P9_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name,
- IS_ERR(s) ? "<error>" : s);
-diff -urNp linux-2.6.28.7/fs/aio.c linux-2.6.28.7/fs/aio.c
---- linux-2.6.28.7/fs/aio.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/aio.c 2009-02-21 09:37:48.000000000 -0500
-@@ -114,7 +114,7 @@ static int aio_setup_ring(struct kioctx
- size += sizeof(struct io_event) * nr_events;
- nr_pages = (size + PAGE_SIZE-1) >> PAGE_SHIFT;
-
-- if (nr_pages < 0)
-+ if (nr_pages <= 0)
- return -EINVAL;
-
- nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring)) / sizeof(struct io_event);
-diff -urNp linux-2.6.28.7/fs/autofs4/symlink.c linux-2.6.28.7/fs/autofs4/symlink.c
---- linux-2.6.28.7/fs/autofs4/symlink.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/autofs4/symlink.c 2009-02-21 09:37:48.000000000 -0500
-@@ -15,7 +15,7 @@
- static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
- {
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
-- nd_set_link(nd, (char *)ino->u.symlink);
-+ nd_set_link(nd, ino->u.symlink);
- return NULL;
- }
-
-diff -urNp linux-2.6.28.7/fs/befs/linuxvfs.c linux-2.6.28.7/fs/befs/linuxvfs.c
---- linux-2.6.28.7/fs/befs/linuxvfs.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/befs/linuxvfs.c 2009-02-21 09:37:48.000000000 -0500
-@@ -490,7 +490,7 @@ static void befs_put_link(struct dentry
- {
- befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
- if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
-- char *link = nd_get_link(nd);
-+ const char *link = nd_get_link(nd);
- if (!IS_ERR(link))
- kfree(link);
- }
-diff -urNp linux-2.6.28.7/fs/binfmt_aout.c linux-2.6.28.7/fs/binfmt_aout.c
---- linux-2.6.28.7/fs/binfmt_aout.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/binfmt_aout.c 2009-02-21 09:37:48.000000000 -0500
-@@ -16,6 +16,7 @@
- #include <linux/string.h>
- #include <linux/fs.h>
- #include <linux/file.h>
-+#include <linux/security.h>
- #include <linux/stat.h>
- #include <linux/fcntl.h>
- #include <linux/ptrace.h>
-@@ -124,18 +125,22 @@ static int aout_core_dump(long signr, st
- /* If the size of the dump file exceeds the rlimit, then see what would happen
- if we wrote the stack, but not the data area. */
- #ifdef __sparc__
-+ gr_learn_resource(current, RLIMIT_CORE, dump.u_dsize + dump.u_ssize, 1);
- if ((dump.u_dsize + dump.u_ssize) > limit)
- dump.u_dsize = 0;
- #else
-+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
- if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > limit)
- dump.u_dsize = 0;
- #endif
-
- /* Make sure we have enough room to write the stack and data areas. */
- #ifdef __sparc__
-+ gr_learn_resource(current, RLIMIT_CORE, dump.u_ssize, 1);
- if (dump.u_ssize > limit)
- dump.u_ssize = 0;
- #else
-+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
- if ((dump.u_ssize + 1) * PAGE_SIZE > limit)
- dump.u_ssize = 0;
- #endif
-@@ -291,6 +296,8 @@ static int load_aout_binary(struct linux
- rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
- if (rlim >= RLIM_INFINITY)
- rlim = ~0;
-+
-+ gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
- if (ex.a_data + ex.a_bss > rlim)
- return -ENOMEM;
-
-@@ -322,6 +329,28 @@ static int load_aout_binary(struct linux
-
- compute_creds(bprm);
- current->flags &= ~PF_FORKNOEXEC;
-+
-+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
-+ current->mm->pax_flags = 0UL;
-+#endif
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
-+ current->mm->pax_flags |= MF_PAX_PAGEEXEC;
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
-+ current->mm->pax_flags |= MF_PAX_EMUTRAMP;
-+#endif
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
-+ current->mm->pax_flags |= MF_PAX_MPROTECT;
-+#endif
-+
-+ }
-+#endif
-+
- #ifdef __sparc__
- if (N_MAGIC(ex) == NMAGIC) {
- loff_t pos = fd_offset;
-@@ -413,7 +442,7 @@ static int load_aout_binary(struct linux
-
- down_write(¤t->mm->mmap_sem);
- error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
-- PROT_READ | PROT_WRITE | PROT_EXEC,
-+ PROT_READ | PROT_WRITE,
- MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
- fd_offset + ex.a_text);
- up_write(¤t->mm->mmap_sem);
-diff -urNp linux-2.6.28.7/fs/binfmt_elf.c linux-2.6.28.7/fs/binfmt_elf.c
---- linux-2.6.28.7/fs/binfmt_elf.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/fs/binfmt_elf.c 2009-03-07 04:29:14.000000000 -0500
-@@ -42,6 +42,10 @@
- #include <asm/param.h>
- #include <asm/page.h>
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+#include <asm/desc.h>
-+#endif
-+
- static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs);
- static int load_elf_library(struct file *);
- static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *,
-@@ -57,6 +61,10 @@ static int elf_core_dump(long signr, str
- #define elf_core_dump NULL
- #endif
-
-+#ifdef CONFIG_PAX_MPROTECT
-+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
-+#endif
-+
- #if ELF_EXEC_PAGESIZE > PAGE_SIZE
- #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE
- #else
-@@ -76,6 +84,11 @@ static struct linux_binfmt elf_format =
- .load_binary = load_elf_binary,
- .load_shlib = load_elf_library,
- .core_dump = elf_core_dump,
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ .handle_mprotect= elf_handle_mprotect,
-+#endif
-+
- .min_coredump = ELF_EXEC_PAGESIZE,
- .hasvdso = 1
- };
-@@ -84,6 +97,8 @@ static struct linux_binfmt elf_format =
-
- static int set_brk(unsigned long start, unsigned long end)
- {
-+ unsigned long e = end;
-+
- start = ELF_PAGEALIGN(start);
- end = ELF_PAGEALIGN(end);
- if (end > start) {
-@@ -94,7 +109,7 @@ static int set_brk(unsigned long start,
- if (BAD_ADDR(addr))
- return addr;
- }
-- current->mm->start_brk = current->mm->brk = end;
-+ current->mm->start_brk = current->mm->brk = e;
- return 0;
- }
-
-@@ -380,10 +395,10 @@ static unsigned long load_elf_interp(str
- {
- struct elf_phdr *elf_phdata;
- struct elf_phdr *eppnt;
-- unsigned long load_addr = 0;
-+ unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
- int load_addr_set = 0;
- unsigned long last_bss = 0, elf_bss = 0;
-- unsigned long error = ~0UL;
-+ unsigned long error = -EINVAL;
- unsigned long total_size;
- int retval, i, size;
-
-@@ -429,6 +444,11 @@ static unsigned long load_elf_interp(str
- goto out_close;
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-+
- eppnt = elf_phdata;
- for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
- if (eppnt->p_type == PT_LOAD) {
-@@ -472,8 +492,8 @@ static unsigned long load_elf_interp(str
- k = load_addr + eppnt->p_vaddr;
- if (BAD_ADDR(k) ||
- eppnt->p_filesz > eppnt->p_memsz ||
-- eppnt->p_memsz > TASK_SIZE ||
-- TASK_SIZE - eppnt->p_memsz < k) {
-+ eppnt->p_memsz > pax_task_size ||
-+ pax_task_size - eppnt->p_memsz < k) {
- error = -ENOMEM;
- goto out_close;
- }
-@@ -527,6 +547,177 @@ out:
- return error;
- }
-
-+#if (defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)) && defined(CONFIG_PAX_SOFTMODE)
-+static unsigned long pax_parse_softmode(const struct elf_phdr * const elf_phdata)
-+{
-+ unsigned long pax_flags = 0UL;
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (elf_phdata->p_flags & PF_PAGEEXEC)
-+ pax_flags |= MF_PAX_PAGEEXEC;
-+#endif
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (elf_phdata->p_flags & PF_SEGMEXEC)
-+ pax_flags |= MF_PAX_SEGMEXEC;
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
-+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+ if (nx_enabled)
-+ pax_flags &= ~MF_PAX_SEGMEXEC;
-+ else
-+ pax_flags &= ~MF_PAX_PAGEEXEC;
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ if (elf_phdata->p_flags & PF_EMUTRAMP)
-+ pax_flags |= MF_PAX_EMUTRAMP;
-+#endif
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (elf_phdata->p_flags & PF_MPROTECT)
-+ pax_flags |= MF_PAX_MPROTECT;
-+#endif
-+
-+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
-+ if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
-+ pax_flags |= MF_PAX_RANDMMAP;
-+#endif
-+
-+ return pax_flags;
-+}
-+#endif
-+
-+#ifdef CONFIG_PAX_PT_PAX_FLAGS
-+static unsigned long pax_parse_hardmode(const struct elf_phdr * const elf_phdata)
-+{
-+ unsigned long pax_flags = 0UL;
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
-+ pax_flags |= MF_PAX_PAGEEXEC;
-+#endif
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
-+ pax_flags |= MF_PAX_SEGMEXEC;
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
-+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+ if (nx_enabled)
-+ pax_flags &= ~MF_PAX_SEGMEXEC;
-+ else
-+ pax_flags &= ~MF_PAX_PAGEEXEC;
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
-+ pax_flags |= MF_PAX_EMUTRAMP;
-+#endif
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (!(elf_phdata->p_flags & PF_NOMPROTECT))
-+ pax_flags |= MF_PAX_MPROTECT;
-+#endif
-+
-+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
-+ if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
-+ pax_flags |= MF_PAX_RANDMMAP;
-+#endif
-+
-+ return pax_flags;
-+}
-+#endif
-+
-+#ifdef CONFIG_PAX_EI_PAX
-+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
-+{
-+ unsigned long pax_flags = 0UL;
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
-+ pax_flags |= MF_PAX_PAGEEXEC;
-+#endif
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
-+ pax_flags |= MF_PAX_SEGMEXEC;
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
-+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+ if (nx_enabled)
-+ pax_flags &= ~MF_PAX_SEGMEXEC;
-+ else
-+ pax_flags &= ~MF_PAX_PAGEEXEC;
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
-+ pax_flags |= MF_PAX_EMUTRAMP;
-+#endif
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
-+ pax_flags |= MF_PAX_MPROTECT;
-+#endif
-+
-+#ifdef CONFIG_PAX_ASLR
-+ if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
-+ pax_flags |= MF_PAX_RANDMMAP;
-+#endif
-+
-+ return pax_flags;
-+}
-+#endif
-+
-+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)
-+static long pax_parse_elf_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
-+{
-+ unsigned long pax_flags = 0UL;
-+
-+#ifdef CONFIG_PAX_PT_PAX_FLAGS
-+ unsigned long i;
-+#endif
-+
-+#ifdef CONFIG_PAX_EI_PAX
-+ pax_flags = pax_parse_ei_pax(elf_ex);
-+#endif
-+
-+#ifdef CONFIG_PAX_PT_PAX_FLAGS
-+ for (i = 0UL; i < elf_ex->e_phnum; i++)
-+ if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
-+ if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
-+ ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
-+ ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
-+ ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
-+ ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
-+ return -EINVAL;
-+
-+#ifdef CONFIG_PAX_SOFTMODE
-+ if (pax_softmode)
-+ pax_flags = pax_parse_softmode(&elf_phdata[i]);
-+ else
-+#endif
-+
-+ pax_flags = pax_parse_hardmode(&elf_phdata[i]);
-+ break;
-+ }
-+#endif
-+
-+ if (0 > pax_check_flags(&pax_flags))
-+ return -EINVAL;
-+
-+ current->mm->pax_flags = pax_flags;
-+ return 0;
-+}
-+#endif
-+
- /*
- * These are the functions used to load ELF style executables and shared
- * libraries. There is no binary dependent code anywhere else.
-@@ -543,6 +734,11 @@ static unsigned long randomize_stack_top
- {
- unsigned int random_variable = 0;
-
-+#ifdef CONFIG_PAX_RANDUSTACK
-+ if (randomize_va_space)
-+ return stack_top - current->mm->delta_stack;
-+#endif
-+
- if ((current->flags & PF_RANDOMIZE) &&
- !(current->personality & ADDR_NO_RANDOMIZE)) {
- random_variable = get_random_int() & STACK_RND_MASK;
-@@ -561,7 +757,7 @@ static int load_elf_binary(struct linux_
- unsigned long load_addr = 0, load_bias = 0;
- int load_addr_set = 0;
- char * elf_interpreter = NULL;
-- unsigned long error;
-+ unsigned long error = 0;
- struct elf_phdr *elf_ppnt, *elf_phdata;
- unsigned long elf_bss, elf_brk;
- int elf_exec_fileno;
-@@ -572,11 +768,11 @@ static int load_elf_binary(struct linux_
- unsigned long start_code, end_code, start_data, end_data;
- unsigned long reloc_func_desc = 0;
- int executable_stack = EXSTACK_DEFAULT;
-- unsigned long def_flags = 0;
- struct {
- struct elfhdr elf_ex;
- struct elfhdr interp_elf_ex;
- } *loc;
-+ unsigned long pax_task_size = TASK_SIZE;
-
- loc = kmalloc(sizeof(*loc), GFP_KERNEL);
- if (!loc) {
-@@ -744,11 +940,80 @@ static int load_elf_binary(struct linux_
-
- /* OK, This is the point of no return */
- current->flags &= ~PF_FORKNOEXEC;
-- current->mm->def_flags = def_flags;
-+
-+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
-+ current->mm->pax_flags = 0UL;
-+#endif
-+
-+#ifdef CONFIG_PAX_DLRESOLVE
-+ current->mm->call_dl_resolve = 0UL;
-+#endif
-+
-+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
-+ current->mm->call_syscall = 0UL;
-+#endif
-+
-+#ifdef CONFIG_PAX_ASLR
-+ current->mm->delta_mmap = 0UL;
-+ current->mm->delta_stack = 0UL;
-+#endif
-+
-+ current->mm->def_flags = 0;
-+
-+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)
-+ if (0 > pax_parse_elf_flags(&loc->elf_ex, elf_phdata)) {
-+ send_sig(SIGKILL, current, 0);
-+ goto out_free_dentry;
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
-+ pax_set_initial_flags(bprm);
-+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
-+ if (pax_set_initial_flags_func)
-+ (pax_set_initial_flags_func)(bprm);
-+#endif
-+
-+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
-+ if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !nx_enabled) {
-+ current->mm->context.user_cs_limit = PAGE_SIZE;
-+ current->mm->def_flags |= VM_PAGEEXEC;
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
-+ current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
-+ current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+ }
-+#endif
-+
-+#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
-+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+ set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
-+ put_cpu_no_resched();
-+ }
-+#endif
-+
-+#ifdef CONFIG_PAX_ASLR
-+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
-+ current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
-+ current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
-+ }
-+#endif
-
- /* Do this immediately, since STACK_TOP as used in setup_arg_pages
- may depend on the personality. */
- SET_PERSONALITY(loc->elf_ex);
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+ executable_stack = EXSTACK_DISABLE_X;
-+ current->personality &= ~READ_IMPLIES_EXEC;
-+ } else
-+#endif
-+
- if (elf_read_implies_exec(loc->elf_ex, executable_stack))
- current->personality |= READ_IMPLIES_EXEC;
-
-@@ -829,6 +1094,20 @@ static int load_elf_binary(struct linux_
- #else
- load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
- #endif
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ /* PaX: randomize base address at the default exe base if requested */
-+ if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
-+#ifdef CONFIG_SPARC64
-+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
-+#else
-+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
-+#endif
-+ load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
-+ elf_flags |= MAP_FIXED;
-+ }
-+#endif
-+
- }
-
- error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
-@@ -861,9 +1140,9 @@ static int load_elf_binary(struct linux_
- * allowed task size. Note that p_filesz must always be
- * <= p_memsz so it is only necessary to check p_memsz.
- */
-- if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
-- elf_ppnt->p_memsz > TASK_SIZE ||
-- TASK_SIZE - elf_ppnt->p_memsz < k) {
-+ if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
-+ elf_ppnt->p_memsz > pax_task_size ||
-+ pax_task_size - elf_ppnt->p_memsz < k) {
- /* set_brk can never work. Avoid overflows. */
- send_sig(SIGKILL, current, 0);
- retval = -EINVAL;
-@@ -891,6 +1170,11 @@ static int load_elf_binary(struct linux_
- start_data += load_bias;
- end_data += load_bias;
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (current->mm->pax_flags & MF_PAX_RANDMMAP)
-+ elf_brk += PAGE_SIZE + ((pax_get_random_long() & ~PAGE_MASK) << 4);
-+#endif
-+
- /* Calling set_brk effectively mmaps the pages that we need
- * for the bss and break sections. We must do this before
- * mapping in the interpreter, to make sure it doesn't wind
-@@ -902,9 +1186,11 @@ static int load_elf_binary(struct linux_
- goto out_free_dentry;
- }
- if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
-- send_sig(SIGSEGV, current, 0);
-- retval = -EFAULT; /* Nobody gets to see this, but.. */
-- goto out_free_dentry;
-+ /*
-+ * This bss-zeroing can fail if the ELF
-+ * file specifies odd protections. So
-+ * we don't check the return value
-+ */
- }
-
- if (elf_interpreter) {
-@@ -1141,8 +1427,10 @@ static int dump_seek(struct file *file,
- unsigned long n = off;
- if (n > PAGE_SIZE)
- n = PAGE_SIZE;
-- if (!dump_write(file, buf, n))
-+ if (!dump_write(file, buf, n)) {
-+ free_page((unsigned long)buf);
- return 0;
-+ }
- off -= n;
- }
- free_page((unsigned long)buf);
-@@ -1154,7 +1442,7 @@ static int dump_seek(struct file *file,
- * Decide what to dump of a segment, part, all or none.
- */
- static unsigned long vma_dump_size(struct vm_area_struct *vma,
-- unsigned long mm_flags)
-+ unsigned long mm_flags, long signr)
- {
- #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type))
-
-@@ -1188,7 +1476,7 @@ static unsigned long vma_dump_size(struc
- if (vma->vm_file == NULL)
- return 0;
-
-- if (FILTER(MAPPED_PRIVATE))
-+ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
- goto whole;
-
- /*
-@@ -1284,8 +1572,11 @@ static int writenote(struct memelfnote *
- #undef DUMP_WRITE
-
- #define DUMP_WRITE(addr, nr) \
-+ do { \
-+ gr_learn_resource(current, RLIMIT_CORE, size + (nr), 1); \
- if ((size += (nr)) > limit || !dump_write(file, (addr), (nr))) \
-- goto end_coredump;
-+ goto end_coredump; \
-+ } while (0);
- #define DUMP_SEEK(off) \
- if (!dump_seek(file, (off))) \
- goto end_coredump;
-@@ -1986,7 +2277,7 @@ static int elf_core_dump(long signr, str
- phdr.p_offset = offset;
- phdr.p_vaddr = vma->vm_start;
- phdr.p_paddr = 0;
-- phdr.p_filesz = vma_dump_size(vma, mm_flags);
-+ phdr.p_filesz = vma_dump_size(vma, mm_flags, signr);
- phdr.p_memsz = vma->vm_end - vma->vm_start;
- offset += phdr.p_filesz;
- phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
-@@ -2018,7 +2309,7 @@ static int elf_core_dump(long signr, str
- unsigned long addr;
- unsigned long end;
-
-- end = vma->vm_start + vma_dump_size(vma, mm_flags);
-+ end = vma->vm_start + vma_dump_size(vma, mm_flags, signr);
-
- for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) {
- struct page *page;
-@@ -2038,6 +2329,7 @@ static int elf_core_dump(long signr, str
- flush_cache_page(tmp_vma, addr,
- page_to_pfn(page));
- kaddr = kmap(page);
-+ gr_learn_resource(current, RLIMIT_CORE, size + PAGE_SIZE, 1);
- if ((size += PAGE_SIZE) > limit ||
- !dump_write(file, kaddr,
- PAGE_SIZE)) {
-@@ -2068,6 +2360,99 @@ out:
-
- #endif /* USE_ELF_CORE_DUMP */
-
-+#ifdef CONFIG_PAX_MPROTECT
-+/* PaX: non-PIC ELF libraries need relocations on their executable segments
-+ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
-+ * we'll remove VM_MAYWRITE for good on RELRO segments.
-+ *
-+ * The checks favour ld-linux.so behaviour which operates on a per ELF segment
-+ * basis because we want to allow the common case and not the special ones.
-+ */
-+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
-+{
-+ struct elfhdr elf_h;
-+ struct elf_phdr elf_p;
-+ unsigned long i;
-+ unsigned long oldflags;
-+ bool is_textrel_rw, is_textrel_rx, is_relro;
-+
-+ if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT))
-+ return;
-+
-+ oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
-+ newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
-+
-+#ifdef CONFIG_PAX_NOELFRELOCS
-+ is_textrel_rw = false;
-+ is_textrel_rx = false;
-+#else
-+ /* possible TEXTREL */
-+ is_textrel_rw = vma->vm_file && !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
-+ is_textrel_rx = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
-+#endif
-+
-+ /* possible RELRO */
-+ is_relro = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
-+
-+ if (!is_textrel_rw && !is_textrel_rx && !is_relro)
-+ return;
-+
-+ if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
-+ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
-+
-+#ifdef CONFIG_PAX_ETEXECRELOCS
-+ ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
-+#else
-+ ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
-+#endif
-+
-+ (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
-+ !elf_check_arch(&elf_h) ||
-+ elf_h.e_phentsize != sizeof(struct elf_phdr) ||
-+ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
-+ return;
-+
-+ for (i = 0UL; i < elf_h.e_phnum; i++) {
-+ if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
-+ return;
-+ switch (elf_p.p_type) {
-+ case PT_DYNAMIC: {
-+ elf_addr_t dyn_offset = 0UL;
-+ elf_dyn dyn;
-+
-+ if (!is_textrel_rw && !is_textrel_rx)
-+ continue;
-+ dyn_offset = elf_p.p_offset;
-+ i = 0UL;
-+ do {
-+ if (sizeof(dyn) != kernel_read(vma->vm_file, dyn_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
-+ return;
-+ if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
-+ gr_log_textrel(vma);
-+ if (is_textrel_rw)
-+ vma->vm_flags |= VM_MAYWRITE;
-+ else
-+ /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
-+ vma->vm_flags &= ~VM_MAYWRITE;
-+ return;
-+ }
-+ i++;
-+ } while (dyn.d_tag != DT_NULL);
-+ return;
-+ }
-+
-+ case PT_GNU_RELRO:
-+ if (!is_relro)
-+ continue;
-+ if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start) {
-+ vma->vm_flags &= ~VM_MAYWRITE;
-+ }
-+ return;
-+ }
-+ }
-+}
-+#endif
-+
- static int __init init_elf_binfmt(void)
- {
- return register_binfmt(&elf_format);
-diff -urNp linux-2.6.28.7/fs/binfmt_flat.c linux-2.6.28.7/fs/binfmt_flat.c
---- linux-2.6.28.7/fs/binfmt_flat.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/binfmt_flat.c 2009-02-21 09:37:48.000000000 -0500
-@@ -561,7 +561,9 @@ static int load_flat_file(struct linux_b
- realdatastart = (unsigned long) -ENOMEM;
- printk("Unable to allocate RAM for process data, errno %d\n",
- (int)-realdatastart);
-+ down_write(¤t->mm->mmap_sem);
- do_munmap(current->mm, textpos, text_len);
-+ up_write(¤t->mm->mmap_sem);
- ret = realdatastart;
- goto err;
- }
-@@ -583,8 +585,10 @@ static int load_flat_file(struct linux_b
- }
- if (result >= (unsigned long)-4096) {
- printk("Unable to read data+bss, errno %d\n", (int)-result);
-+ down_write(¤t->mm->mmap_sem);
- do_munmap(current->mm, textpos, text_len);
- do_munmap(current->mm, realdatastart, data_len + extra);
-+ up_write(¤t->mm->mmap_sem);
- ret = result;
- goto err;
- }
-@@ -657,8 +661,10 @@ static int load_flat_file(struct linux_b
- }
- if (result >= (unsigned long)-4096) {
- printk("Unable to read code+data+bss, errno %d\n",(int)-result);
-+ down_write(¤t->mm->mmap_sem);
- do_munmap(current->mm, textpos, text_len + data_len + extra +
- MAX_SHARED_LIBS * sizeof(unsigned long));
-+ up_write(¤t->mm->mmap_sem);
- ret = result;
- goto err;
- }
-diff -urNp linux-2.6.28.7/fs/binfmt_misc.c linux-2.6.28.7/fs/binfmt_misc.c
---- linux-2.6.28.7/fs/binfmt_misc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/binfmt_misc.c 2009-02-21 09:37:48.000000000 -0500
-@@ -696,7 +696,7 @@ static int bm_fill_super(struct super_bl
- static struct tree_descr bm_files[] = {
- [2] = {"status", &bm_status_operations, S_IWUSR|S_IRUGO},
- [3] = {"register", &bm_register_operations, S_IWUSR},
-- /* last one */ {""}
-+ /* last one */ {"", NULL, 0}
- };
- int err = simple_fill_super(sb, 0x42494e4d, bm_files);
- if (!err)
-diff -urNp linux-2.6.28.7/fs/bio.c linux-2.6.28.7/fs/bio.c
---- linux-2.6.28.7/fs/bio.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/bio.c 2009-02-21 09:37:48.000000000 -0500
-@@ -554,7 +554,7 @@ static int __bio_copy_iov(struct bio *bi
-
- while (bv_len && iov_idx < iov_count) {
- unsigned int bytes;
-- char *iov_addr;
-+ char __user *iov_addr;
-
- bytes = min_t(unsigned int,
- iov[iov_idx].iov_len - iov_off, bv_len);
-diff -urNp linux-2.6.28.7/fs/buffer.c linux-2.6.28.7/fs/buffer.c
---- linux-2.6.28.7/fs/buffer.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/buffer.c 2009-02-21 09:37:48.000000000 -0500
-@@ -25,6 +25,7 @@
- #include <linux/percpu.h>
- #include <linux/slab.h>
- #include <linux/capability.h>
-+#include <linux/security.h>
- #include <linux/blkdev.h>
- #include <linux/file.h>
- #include <linux/quotaops.h>
-@@ -2249,6 +2250,7 @@ int generic_cont_expand_simple(struct in
-
- err = -EFBIG;
- limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
-+ gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long) size, 1);
- if (limit != RLIM_INFINITY && size > (loff_t)limit) {
- send_sig(SIGXFSZ, current, 0);
- goto out;
-diff -urNp linux-2.6.28.7/fs/cifs/cifs_uniupr.h linux-2.6.28.7/fs/cifs/cifs_uniupr.h
---- linux-2.6.28.7/fs/cifs/cifs_uniupr.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/cifs/cifs_uniupr.h 2009-02-21 09:37:48.000000000 -0500
-@@ -132,7 +132,7 @@ const struct UniCaseRange CifsUniUpperRa
- {0x0490, 0x04cc, UniCaseRangeU0490},
- {0x1e00, 0x1ffc, UniCaseRangeU1e00},
- {0xff40, 0xff5a, UniCaseRangeUff40},
-- {0}
-+ {0, 0, NULL}
- };
- #endif
-
-diff -urNp linux-2.6.28.7/fs/cifs/link.c linux-2.6.28.7/fs/cifs/link.c
---- linux-2.6.28.7/fs/cifs/link.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/cifs/link.c 2009-02-21 09:37:48.000000000 -0500
-@@ -318,7 +318,7 @@ cifs_readlink(struct dentry *direntry, c
-
- void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
- {
-- char *p = nd_get_link(nd);
-+ const char *p = nd_get_link(nd);
- if (!IS_ERR(p))
- kfree(p);
- }
-diff -urNp linux-2.6.28.7/fs/compat.c linux-2.6.28.7/fs/compat.c
---- linux-2.6.28.7/fs/compat.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/compat.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1331,14 +1331,12 @@ static int compat_copy_strings(int argc,
- if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
- struct page *page;
-
--#ifdef CONFIG_STACK_GROWSUP
- ret = expand_stack_downwards(bprm->vma, pos);
- if (ret < 0) {
- /* We've exceed the stack rlimit. */
- ret = -E2BIG;
- goto out;
- }
--#endif
- ret = get_user_pages(current, bprm->mm, pos,
- 1, 1, 1, &page, NULL);
- if (ret <= 0) {
-@@ -1384,6 +1382,11 @@ int compat_do_execve(char * filename,
- compat_uptr_t __user *envp,
- struct pt_regs * regs)
- {
-+#ifdef CONFIG_GRKERNSEC
-+ struct file *old_exec_file;
-+ struct acl_subject_label *old_acl;
-+ struct rlimit old_rlim[RLIM_NLIMITS];
-+#endif
- struct linux_binprm *bprm;
- struct file *file;
- int retval;
-@@ -1404,6 +1407,14 @@ int compat_do_execve(char * filename,
- bprm->filename = filename;
- bprm->interp = filename;
-
-+ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(¤t->user->processes), 1);
-+ retval = -EAGAIN;
-+ if (gr_handle_nproc())
-+ goto out_file;
-+ retval = -EACCES;
-+ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt))
-+ goto out_file;
-+
- retval = bprm_mm_init(bprm);
- if (retval)
- goto out_file;
-@@ -1437,8 +1448,36 @@ int compat_do_execve(char * filename,
- if (retval < 0)
- goto out;
-
-+ if (!gr_tpe_allow(file)) {
-+ retval = -EACCES;
-+ goto out;
-+ }
-+
-+ if (gr_check_crash_exec(file)) {
-+ retval = -EACCES;
-+ goto out;
-+ }
-+
-+ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt);
-+
-+ gr_handle_exec_args(bprm, (char __user * __user *)argv);
-+
-+#ifdef CONFIG_GRKERNSEC
-+ old_acl = current->acl;
-+ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
-+ old_exec_file = current->exec_file;
-+ get_file(file);
-+ current->exec_file = file;
-+#endif
-+
-+ gr_set_proc_label(file->f_dentry, file->f_vfsmnt);
-+
- retval = search_binary_handler(bprm, regs);
- if (retval >= 0) {
-+#ifdef CONFIG_GRKERNSEC
-+ if (old_exec_file)
-+ fput(old_exec_file);
-+#endif
- /* execve success */
- security_bprm_free(bprm);
- acct_update_integrals(current);
-@@ -1446,6 +1485,13 @@ int compat_do_execve(char * filename,
- return retval;
- }
-
-+#ifdef CONFIG_GRKERNSEC
-+ current->acl = old_acl;
-+ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
-+ fput(current->exec_file);
-+ current->exec_file = old_exec_file;
-+#endif
-+
- out:
- if (bprm->security)
- security_bprm_free(bprm);
-diff -urNp linux-2.6.28.7/fs/compat_ioctl.c linux-2.6.28.7/fs/compat_ioctl.c
---- linux-2.6.28.7/fs/compat_ioctl.c 2009-02-08 00:54:27.000000000 -0500
-+++ linux-2.6.28.7/fs/compat_ioctl.c 2009-02-21 09:37:48.000000000 -0500
-@@ -1832,15 +1832,15 @@ struct ioctl_trans {
- };
-
- #define HANDLE_IOCTL(cmd,handler) \
-- { (cmd), (ioctl_trans_handler_t)(handler) },
-+ { (cmd), (ioctl_trans_handler_t)(handler), NULL },
-
- /* pointer to compatible structure or no argument */
- #define COMPATIBLE_IOCTL(cmd) \
-- { (cmd), do_ioctl32_pointer },
-+ { (cmd), do_ioctl32_pointer, NULL },
-
- /* argument is an unsigned long integer, not a pointer */
- #define ULONG_IOCTL(cmd) \
-- { (cmd), (ioctl_trans_handler_t)sys_ioctl },
-+ { (cmd), (ioctl_trans_handler_t)sys_ioctl, NULL },
-
- /* ioctl should not be warned about even if it's not implemented.
- Valid reasons to use this:
-diff -urNp linux-2.6.28.7/fs/debugfs/inode.c linux-2.6.28.7/fs/debugfs/inode.c
---- linux-2.6.28.7/fs/debugfs/inode.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/debugfs/inode.c 2009-02-21 09:37:48.000000000 -0500
-@@ -120,7 +120,7 @@ static inline int debugfs_positive(struc
-
- static int debug_fill_super(struct super_block *sb, void *data, int silent)
- {
-- static struct tree_descr debug_files[] = {{""}};
-+ static struct tree_descr debug_files[] = {{"", NULL, 0}};
-
- return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files);
- }
-diff -urNp linux-2.6.28.7/fs/exec.c linux-2.6.28.7/fs/exec.c
---- linux-2.6.28.7/fs/exec.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/exec.c 2009-02-21 09:37:48.000000000 -0500
-@@ -51,6 +51,12 @@
- #include <linux/audit.h>
- #include <linux/tracehook.h>
- #include <linux/kmod.h>
-+#include <linux/random.h>
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+#include <linux/kallsyms.h>
-+#include <linux/kdebug.h>
-+#endif
-
- #include <asm/uaccess.h>
- #include <asm/mmu_context.h>
-@@ -61,6 +67,11 @@
- #include <linux/a.out.h>
- #endif
-
-+#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
-+void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
-+EXPORT_SYMBOL(pax_set_initial_flags_func);
-+#endif
-+
- int core_uses_pid;
- char core_pattern[CORENAME_MAX_SIZE] = "core";
- int suid_dumpable = 0;
-@@ -169,18 +180,10 @@ static struct page *get_arg_page(struct
- int write)
- {
- struct page *page;
-- int ret;
-
--#ifdef CONFIG_STACK_GROWSUP
-- if (write) {
-- ret = expand_stack_downwards(bprm->vma, pos);
-- if (ret < 0)
-- return NULL;
-- }
--#endif
-- ret = get_user_pages(current, bprm->mm, pos,
-- 1, write, 1, &page, NULL);
-- if (ret <= 0)
-+ if (0 > expand_stack_downwards(bprm->vma, pos))
-+ return NULL;
-+ if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
- return NULL;
-
- if (write) {
-@@ -253,6 +256,11 @@ static int __bprm_mm_init(struct linux_b
- vma->vm_start = vma->vm_end - PAGE_SIZE;
-
- vma->vm_flags = VM_STACK_FLAGS;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
-+#endif
-+
- vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
- err = insert_vm_struct(mm, vma);
- if (err) {
-@@ -265,6 +273,11 @@ static int __bprm_mm_init(struct linux_b
-
- bprm->p = vma->vm_end - sizeof(void *);
-
-+#ifdef CONFIG_PAX_RANDUSTACK
-+ if (randomize_va_space)
-+ bprm->p ^= (pax_get_random_long() & ~15) & ~PAGE_MASK;
-+#endif
-+
- return 0;
-
- err:
-@@ -528,6 +541,10 @@ static int shift_arg_pages(struct vm_are
- if (vma != find_vma(mm, new_start))
- return -EFAULT;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ BUG_ON(pax_find_mirror_vma(vma));
-+#endif
-+
- /*
- * cover the whole range: [new_start, old_end)
- */
-@@ -616,6 +633,14 @@ int setup_arg_pages(struct linux_binprm
- bprm->exec -= stack_shift;
-
- down_write(&mm->mmap_sem);
-+
-+ /* Move stack pages down in memory. */
-+ if (stack_shift) {
-+ ret = shift_arg_pages(vma, stack_shift);
-+ if (ret)
-+ goto out_unlock;
-+ }
-+
- vm_flags = VM_STACK_FLAGS;
-
- /*
-@@ -629,21 +654,24 @@ int setup_arg_pages(struct linux_binprm
- vm_flags &= ~VM_EXEC;
- vm_flags |= mm->def_flags;
-
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+ vm_flags &= ~VM_EXEC;
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (mm->pax_flags & MF_PAX_MPROTECT)
-+ vm_flags &= ~VM_MAYEXEC;
-+#endif
-+
-+ }
-+#endif
-+
- ret = mprotect_fixup(vma, &prev, vma->vm_start, vma->vm_end,
- vm_flags);
- if (ret)
- goto out_unlock;
- BUG_ON(prev != vma);
-
-- /* Move stack pages down in memory. */
-- if (stack_shift) {
-- ret = shift_arg_pages(vma, stack_shift);
-- if (ret) {
-- up_write(&mm->mmap_sem);
-- return ret;
-- }
-- }
--
- #ifdef CONFIG_STACK_GROWSUP
- stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE;
- #else
-@@ -655,7 +683,7 @@ int setup_arg_pages(struct linux_binprm
-
- out_unlock:
- up_write(&mm->mmap_sem);
-- return 0;
-+ return ret;
- }
- EXPORT_SYMBOL(setup_arg_pages);
-
-@@ -1281,6 +1309,11 @@ int do_execve(char * filename,
- char __user *__user *envp,
- struct pt_regs * regs)
- {
-+#ifdef CONFIG_GRKERNSEC
-+ struct file *old_exec_file;
-+ struct acl_subject_label *old_acl;
-+ struct rlimit old_rlim[RLIM_NLIMITS];
-+#endif
- struct linux_binprm *bprm;
- struct file *file;
- struct files_struct *displaced;
-@@ -1300,6 +1333,20 @@ int do_execve(char * filename,
- if (IS_ERR(file))
- goto out_kfree;
-
-+ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(¤t->user->processes), 1);
-+
-+ if (gr_handle_nproc()) {
-+ allow_write_access(file);
-+ fput(file);
-+ return -EAGAIN;
-+ }
-+
-+ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt)) {
-+ allow_write_access(file);
-+ fput(file);
-+ return -EACCES;
-+ }
-+
- sched_exec();
-
- bprm->file = file;
-@@ -1339,9 +1386,39 @@ int do_execve(char * filename,
- if (retval < 0)
- goto out;
-
-+ if (!gr_tpe_allow(file)) {
-+ retval = -EACCES;
-+ goto out;
-+ }
-+
-+ if (gr_check_crash_exec(file)) {
-+ retval = -EACCES;
-+ goto out;
-+ }
-+
-+ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt);
-+
-+ gr_handle_exec_args(bprm, argv);
-+
-+#ifdef CONFIG_GRKERNSEC
-+ old_acl = current->acl;
-+ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
-+ old_exec_file = current->exec_file;
-+ get_file(file);
-+ current->exec_file = file;
-+#endif
-+
-+ retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt);
-+ if (retval < 0)
-+ goto out_fail;
-+
- current->flags &= ~PF_KTHREAD;
- retval = search_binary_handler(bprm,regs);
- if (retval >= 0) {
-+#ifdef CONFIG_GRKERNSEC
-+ if (old_exec_file)
-+ fput(old_exec_file);
-+#endif
- /* execve success */
- security_bprm_free(bprm);
- acct_update_integrals(current);
-@@ -1351,6 +1428,14 @@ int do_execve(char * filename,
- return retval;
- }
-
-+out_fail:
-+#ifdef CONFIG_GRKERNSEC
-+ current->acl = old_acl;
-+ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
-+ fput(current->exec_file);
-+ current->exec_file = old_exec_file;
-+#endif
-+
- out:
- if (bprm->security)
- security_bprm_free(bprm);
-@@ -1513,6 +1598,129 @@ out:
- return ispipe;
- }
-
-+int pax_check_flags(unsigned long *flags)
-+{
-+ int retval = 0;
-+
-+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
-+ if (*flags & MF_PAX_SEGMEXEC)
-+ {
-+ *flags &= ~MF_PAX_SEGMEXEC;
-+ retval = -EINVAL;
-+ }
-+#endif
-+
-+ if ((*flags & MF_PAX_PAGEEXEC)
-+
-+#ifdef CONFIG_PAX_PAGEEXEC
-+ && (*flags & MF_PAX_SEGMEXEC)
-+#endif
-+
-+ )
-+ {
-+ *flags &= ~MF_PAX_PAGEEXEC;
-+ retval = -EINVAL;
-+ }
-+
-+ if ((*flags & MF_PAX_MPROTECT)
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
-+#endif
-+
-+ )
-+ {
-+ *flags &= ~MF_PAX_MPROTECT;
-+ retval = -EINVAL;
-+ }
-+
-+ if ((*flags & MF_PAX_EMUTRAMP)
-+
-+#ifdef CONFIG_PAX_EMUTRAMP
-+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
-+#endif
-+
-+ )
-+ {
-+ *flags &= ~MF_PAX_EMUTRAMP;
-+ retval = -EINVAL;
-+ }
-+
-+ return retval;
-+}
-+
-+EXPORT_SYMBOL(pax_check_flags);
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
-+{
-+ struct task_struct *tsk = current;
-+ struct mm_struct *mm = current->mm;
-+ char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
-+ char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
-+ char *path_exec = NULL;
-+ char *path_fault = NULL;
-+ unsigned long start = 0UL, end = 0UL, offset = 0UL;
-+
-+ if (buffer_exec && buffer_fault) {
-+ struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
-+
-+ down_read(&mm->mmap_sem);
-+ vma = mm->mmap;
-+ while (vma && (!vma_exec || !vma_fault)) {
-+ if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file)
-+ vma_exec = vma;
-+ if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
-+ vma_fault = vma;
-+ vma = vma->vm_next;
-+ }
-+ if (vma_exec) {
-+ path_exec = d_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
-+ if (IS_ERR(path_exec))
-+ path_exec = "<path too long>";
-+ }
-+ if (vma_fault) {
-+ start = vma_fault->vm_start;
-+ end = vma_fault->vm_end;
-+ offset = vma_fault->vm_pgoff << PAGE_SHIFT;
-+ if (vma_fault->vm_file) {
-+ path_fault = d_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
-+ if (IS_ERR(path_fault))
-+ path_fault = "<path too long>";
-+ } else
-+ path_fault = "<anonymous mapping>";
-+ }
-+ up_read(&mm->mmap_sem);
-+ }
-+ if (tsk->signal->curr_ip)
-+ printk(KERN_ERR "PAX: From %u.%u.%u.%u: execution attempt in: %s, %08lx-%08lx %08lx\n", NIPQUAD(tsk->signal->curr_ip), path_fault, start, end, offset);
-+ else
-+ printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
-+ printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, "
-+ "PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
-+ tsk->uid, tsk->euid, pc, sp);
-+ free_page((unsigned long)buffer_exec);
-+ free_page((unsigned long)buffer_fault);
-+ pax_report_insns(pc, sp);
-+ do_coredump(SIGKILL, SIGKILL, regs);
-+}
-+#endif
-+
-+#ifdef CONFIG_PAX_REFCOUNT
-+void pax_report_refcount_overflow(struct pt_regs *regs)
-+{
-+ if (current->signal->curr_ip)
-+ printk(KERN_ERR "PAX: From %u.%u.%u.%u: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
-+ NIPQUAD(current->signal->curr_ip), current->comm, task_pid_nr(current), current->uid, current->euid);
-+ else
-+ printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
-+ current->comm, task_pid_nr(current), current->uid, current->euid);
-+ print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
-+ show_registers(regs);
-+ force_sig_specific(SIGKILL, current);
-+}
-+#endif
-+
- static int zap_process(struct task_struct *start)
- {
- struct task_struct *t;
-@@ -1759,6 +1967,10 @@ int do_coredump(long signr, int exit_cod
- */
- clear_thread_flag(TIF_SIGPENDING);
-
-+ if (signr == SIGKILL || signr == SIGILL)
-+ gr_handle_brute_attach(current);
-+ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
-+
- /*
- * lock_kernel() because format_corename() is controlled by sysctl, which
- * uses lock_kernel()
-@@ -1779,6 +1991,8 @@ int do_coredump(long signr, int exit_cod
-
- if (ispipe) {
- helper_argv = argv_split(GFP_KERNEL, corename+1, &helper_argc);
-+ if (!helper_argv)
-+ goto fail_unlock;
- /* Terminate the string before the first option */
- delimit = strchr(corename, ' ');
- if (delimit)
-diff -urNp linux-2.6.28.7/fs/ext2/balloc.c linux-2.6.28.7/fs/ext2/balloc.c
---- linux-2.6.28.7/fs/ext2/balloc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/ext2/balloc.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1192,7 +1192,7 @@ static int ext2_has_free_blocks(struct e
-
- free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
- root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
-- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
-+ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) &&
- sbi->s_resuid != current->fsuid &&
- (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
- return 0;
-diff -urNp linux-2.6.28.7/fs/ext3/balloc.c linux-2.6.28.7/fs/ext3/balloc.c
---- linux-2.6.28.7/fs/ext3/balloc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/ext3/balloc.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1421,7 +1421,7 @@ static int ext3_has_free_blocks(struct e
-
- free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
- root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
-- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
-+ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) &&
- sbi->s_resuid != current->fsuid &&
- (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
- return 0;
-diff -urNp linux-2.6.28.7/fs/ext3/namei.c linux-2.6.28.7/fs/ext3/namei.c
---- linux-2.6.28.7/fs/ext3/namei.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/ext3/namei.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1156,9 +1156,9 @@ static struct ext3_dir_entry_2 *do_split
- u32 hash2;
- struct dx_map_entry *map;
- char *data1 = (*bh)->b_data, *data2;
-- unsigned split, move, size, i;
-+ unsigned split, move, size;
- struct ext3_dir_entry_2 *de = NULL, *de2;
-- int err = 0;
-+ int i, err = 0;
-
- bh2 = ext3_append (handle, dir, &newblock, &err);
- if (!(bh2)) {
-diff -urNp linux-2.6.28.7/fs/ext3/xattr.c linux-2.6.28.7/fs/ext3/xattr.c
---- linux-2.6.28.7/fs/ext3/xattr.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/ext3/xattr.c 2009-02-21 09:37:49.000000000 -0500
-@@ -89,8 +89,8 @@
- printk("\n"); \
- } while (0)
- #else
--# define ea_idebug(f...)
--# define ea_bdebug(f...)
-+# define ea_idebug(f...) do {} while (0)
-+# define ea_bdebug(f...) do {} while (0)
- #endif
-
- static void ext3_xattr_cache_insert(struct buffer_head *);
-diff -urNp linux-2.6.28.7/fs/ext4/balloc.c linux-2.6.28.7/fs/ext4/balloc.c
---- linux-2.6.28.7/fs/ext4/balloc.c 2009-02-20 22:26:39.000000000 -0500
-+++ linux-2.6.28.7/fs/ext4/balloc.c 2009-02-21 09:37:49.000000000 -0500
-@@ -576,7 +576,7 @@ int ext4_has_free_blocks(struct ext4_sb_
- /* Hm, nope. Are (enough) root reserved blocks available? */
- if (sbi->s_resuid == current->fsuid ||
- ((sbi->s_resgid != 0) && in_group_p(sbi->s_resgid)) ||
-- capable(CAP_SYS_RESOURCE)) {
-+ capable_nolog(CAP_SYS_RESOURCE)) {
- if (free_blocks >= (nblocks + dirty_blocks))
- return 1;
- }
-diff -urNp linux-2.6.28.7/fs/ext4/namei.c linux-2.6.28.7/fs/ext4/namei.c
---- linux-2.6.28.7/fs/ext4/namei.c 2009-02-20 22:26:39.000000000 -0500
-+++ linux-2.6.28.7/fs/ext4/namei.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1171,9 +1171,9 @@ static struct ext4_dir_entry_2 *do_split
- u32 hash2;
- struct dx_map_entry *map;
- char *data1 = (*bh)->b_data, *data2;
-- unsigned split, move, size, i;
-+ unsigned split, move, size;
- struct ext4_dir_entry_2 *de = NULL, *de2;
-- int err = 0;
-+ int i, err = 0;
-
- bh2 = ext4_append (handle, dir, &newblock, &err);
- if (!(bh2)) {
-diff -urNp linux-2.6.28.7/fs/fcntl.c linux-2.6.28.7/fs/fcntl.c
---- linux-2.6.28.7/fs/fcntl.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/fcntl.c 2009-02-21 09:37:49.000000000 -0500
-@@ -266,6 +266,7 @@ static long do_fcntl(int fd, unsigned in
- switch (cmd) {
- case F_DUPFD:
- case F_DUPFD_CLOEXEC:
-+ gr_learn_resource(current, RLIMIT_NOFILE, arg, 0);
- if (arg >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
- break;
- err = alloc_fd(arg, cmd == F_DUPFD_CLOEXEC ? O_CLOEXEC : 0);
-@@ -411,7 +412,8 @@ static inline int sigio_perm(struct task
- return (((fown->euid == 0) ||
- (fown->euid == p->suid) || (fown->euid == p->uid) ||
- (fown->uid == p->suid) || (fown->uid == p->uid)) &&
-- !security_file_send_sigiotask(p, fown, sig));
-+ !security_file_send_sigiotask(p, fown, sig) &&
-+ !gr_check_protected_task(p) && !gr_pid_is_chrooted(p));
- }
-
- static void send_sigio_to_task(struct task_struct *p,
-diff -urNp linux-2.6.28.7/fs/file.c linux-2.6.28.7/fs/file.c
---- linux-2.6.28.7/fs/file.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/file.c 2009-02-21 09:37:49.000000000 -0500
-@@ -13,6 +13,7 @@
- #include <linux/slab.h>
- #include <linux/vmalloc.h>
- #include <linux/file.h>
-+#include <linux/security.h>
- #include <linux/fdtable.h>
- #include <linux/bitops.h>
- #include <linux/interrupt.h>
-@@ -256,6 +257,8 @@ int expand_files(struct files_struct *fi
- * N.B. For clone tasks sharing a files structure, this test
- * will limit the total number of files that can be opened.
- */
-+
-+ gr_learn_resource(current, RLIMIT_NOFILE, nr, 0);
- if (nr >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
- return -EMFILE;
-
-diff -urNp linux-2.6.28.7/fs/fuse/control.c linux-2.6.28.7/fs/fuse/control.c
---- linux-2.6.28.7/fs/fuse/control.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/fuse/control.c 2009-02-21 09:37:49.000000000 -0500
-@@ -159,7 +159,7 @@ void fuse_ctl_remove_conn(struct fuse_co
-
- static int fuse_ctl_fill_super(struct super_block *sb, void *data, int silent)
- {
-- struct tree_descr empty_descr = {""};
-+ struct tree_descr empty_descr = {"", NULL, 0};
- struct fuse_conn *fc;
- int err;
-
-diff -urNp linux-2.6.28.7/fs/fuse/dir.c linux-2.6.28.7/fs/fuse/dir.c
---- linux-2.6.28.7/fs/fuse/dir.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/fuse/dir.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1072,7 +1072,7 @@ static char *read_link(struct dentry *de
- return link;
- }
-
--static void free_link(char *link)
-+static void free_link(const char *link)
- {
- if (!IS_ERR(link))
- free_page((unsigned long) link);
-diff -urNp linux-2.6.28.7/fs/hfs/inode.c linux-2.6.28.7/fs/hfs/inode.c
---- linux-2.6.28.7/fs/hfs/inode.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/hfs/inode.c 2009-02-21 09:37:49.000000000 -0500
-@@ -419,7 +419,7 @@ int hfs_write_inode(struct inode *inode,
-
- if (S_ISDIR(main_inode->i_mode)) {
- if (fd.entrylength < sizeof(struct hfs_cat_dir))
-- /* panic? */;
-+ {/* panic? */}
- hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
- sizeof(struct hfs_cat_dir));
- if (rec.type != HFS_CDR_DIR ||
-@@ -440,7 +440,7 @@ int hfs_write_inode(struct inode *inode,
- sizeof(struct hfs_cat_file));
- } else {
- if (fd.entrylength < sizeof(struct hfs_cat_file))
-- /* panic? */;
-+ {/* panic? */}
- hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
- sizeof(struct hfs_cat_file));
- if (rec.type != HFS_CDR_FIL ||
-diff -urNp linux-2.6.28.7/fs/hfsplus/inode.c linux-2.6.28.7/fs/hfsplus/inode.c
---- linux-2.6.28.7/fs/hfsplus/inode.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/hfsplus/inode.c 2009-02-21 09:37:49.000000000 -0500
-@@ -406,7 +406,7 @@ int hfsplus_cat_read_inode(struct inode
- struct hfsplus_cat_folder *folder = &entry.folder;
-
- if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
-- /* panic? */;
-+ {/* panic? */}
- hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
- sizeof(struct hfsplus_cat_folder));
- hfsplus_get_perms(inode, &folder->permissions, 1);
-@@ -423,7 +423,7 @@ int hfsplus_cat_read_inode(struct inode
- struct hfsplus_cat_file *file = &entry.file;
-
- if (fd->entrylength < sizeof(struct hfsplus_cat_file))
-- /* panic? */;
-+ {/* panic? */}
- hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
- sizeof(struct hfsplus_cat_file));
-
-@@ -479,7 +479,7 @@ int hfsplus_cat_write_inode(struct inode
- struct hfsplus_cat_folder *folder = &entry.folder;
-
- if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
-- /* panic? */;
-+ {/* panic? */}
- hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
- sizeof(struct hfsplus_cat_folder));
- /* simple node checks? */
-@@ -501,7 +501,7 @@ int hfsplus_cat_write_inode(struct inode
- struct hfsplus_cat_file *file = &entry.file;
-
- if (fd.entrylength < sizeof(struct hfsplus_cat_file))
-- /* panic? */;
-+ {/* panic? */}
- hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
- sizeof(struct hfsplus_cat_file));
- hfsplus_inode_write_fork(inode, &file->data_fork);
-diff -urNp linux-2.6.28.7/fs/jffs2/debug.h linux-2.6.28.7/fs/jffs2/debug.h
---- linux-2.6.28.7/fs/jffs2/debug.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/jffs2/debug.h 2009-02-21 09:37:49.000000000 -0500
-@@ -52,13 +52,13 @@
- #if CONFIG_JFFS2_FS_DEBUG > 0
- #define D1(x) x
- #else
--#define D1(x)
-+#define D1(x) do {} while (0);
- #endif
-
- #if CONFIG_JFFS2_FS_DEBUG > 1
- #define D2(x) x
- #else
--#define D2(x)
-+#define D2(x) do {} while (0);
- #endif
-
- /* The prefixes of JFFS2 messages */
-@@ -114,73 +114,73 @@
- #ifdef JFFS2_DBG_READINODE_MESSAGES
- #define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_readinode(fmt, ...)
-+#define dbg_readinode(fmt, ...) do {} while (0)
- #endif
- #ifdef JFFS2_DBG_READINODE2_MESSAGES
- #define dbg_readinode2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_readinode2(fmt, ...)
-+#define dbg_readinode2(fmt, ...) do {} while (0)
- #endif
-
- /* Fragtree build debugging messages */
- #ifdef JFFS2_DBG_FRAGTREE_MESSAGES
- #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_fragtree(fmt, ...)
-+#define dbg_fragtree(fmt, ...) do {} while (0)
- #endif
- #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
- #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_fragtree2(fmt, ...)
-+#define dbg_fragtree2(fmt, ...) do {} while (0)
- #endif
-
- /* Directory entry list manilulation debugging messages */
- #ifdef JFFS2_DBG_DENTLIST_MESSAGES
- #define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_dentlist(fmt, ...)
-+#define dbg_dentlist(fmt, ...) do {} while (0)
- #endif
-
- /* Print the messages about manipulating node_refs */
- #ifdef JFFS2_DBG_NODEREF_MESSAGES
- #define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_noderef(fmt, ...)
-+#define dbg_noderef(fmt, ...) do {} while (0)
- #endif
-
- /* Manipulations with the list of inodes (JFFS2 inocache) */
- #ifdef JFFS2_DBG_INOCACHE_MESSAGES
- #define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_inocache(fmt, ...)
-+#define dbg_inocache(fmt, ...) do {} while (0)
- #endif
-
- /* Summary debugging messages */
- #ifdef JFFS2_DBG_SUMMARY_MESSAGES
- #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_summary(fmt, ...)
-+#define dbg_summary(fmt, ...) do {} while (0)
- #endif
-
- /* File system build messages */
- #ifdef JFFS2_DBG_FSBUILD_MESSAGES
- #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_fsbuild(fmt, ...)
-+#define dbg_fsbuild(fmt, ...) do {} while (0)
- #endif
-
- /* Watch the object allocations */
- #ifdef JFFS2_DBG_MEMALLOC_MESSAGES
- #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_memalloc(fmt, ...)
-+#define dbg_memalloc(fmt, ...) do {} while (0)
- #endif
-
- /* Watch the XATTR subsystem */
- #ifdef JFFS2_DBG_XATTR_MESSAGES
- #define dbg_xattr(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
- #else
--#define dbg_xattr(fmt, ...)
-+#define dbg_xattr(fmt, ...) do {} while (0)
- #endif
-
- /* "Sanity" checks */
-diff -urNp linux-2.6.28.7/fs/jffs2/erase.c linux-2.6.28.7/fs/jffs2/erase.c
---- linux-2.6.28.7/fs/jffs2/erase.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/jffs2/erase.c 2009-02-21 09:37:49.000000000 -0500
-@@ -431,7 +431,8 @@ static void jffs2_mark_erased_block(stru
- struct jffs2_unknown_node marker = {
- .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
- .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-- .totlen = cpu_to_je32(c->cleanmarker_size)
-+ .totlen = cpu_to_je32(c->cleanmarker_size),
-+ .hdr_crc = cpu_to_je32(0)
- };
-
- jffs2_prealloc_raw_node_refs(c, jeb, 1);
-diff -urNp linux-2.6.28.7/fs/jffs2/summary.h linux-2.6.28.7/fs/jffs2/summary.h
---- linux-2.6.28.7/fs/jffs2/summary.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/jffs2/summary.h 2009-02-21 09:37:49.000000000 -0500
-@@ -194,18 +194,18 @@ int jffs2_sum_scan_sumnode(struct jffs2_
-
- #define jffs2_sum_active() (0)
- #define jffs2_sum_init(a) (0)
--#define jffs2_sum_exit(a)
--#define jffs2_sum_disable_collecting(a)
-+#define jffs2_sum_exit(a) do {} while (0)
-+#define jffs2_sum_disable_collecting(a) do {} while (0)
- #define jffs2_sum_is_disabled(a) (0)
--#define jffs2_sum_reset_collected(a)
-+#define jffs2_sum_reset_collected(a) do {} while (0)
- #define jffs2_sum_add_kvec(a,b,c,d) (0)
--#define jffs2_sum_move_collected(a,b)
-+#define jffs2_sum_move_collected(a,b) do {} while (0)
- #define jffs2_sum_write_sumnode(a) (0)
--#define jffs2_sum_add_padding_mem(a,b)
--#define jffs2_sum_add_inode_mem(a,b,c)
--#define jffs2_sum_add_dirent_mem(a,b,c)
--#define jffs2_sum_add_xattr_mem(a,b,c)
--#define jffs2_sum_add_xref_mem(a,b,c)
-+#define jffs2_sum_add_padding_mem(a,b) do {} while (0)
-+#define jffs2_sum_add_inode_mem(a,b,c) do {} while (0)
-+#define jffs2_sum_add_dirent_mem(a,b,c) do {} while (0)
-+#define jffs2_sum_add_xattr_mem(a,b,c) do {} while (0)
-+#define jffs2_sum_add_xref_mem(a,b,c) do {} while (0)
- #define jffs2_sum_scan_sumnode(a,b,c,d,e) (0)
-
- #endif /* CONFIG_JFFS2_SUMMARY */
-diff -urNp linux-2.6.28.7/fs/jffs2/wbuf.c linux-2.6.28.7/fs/jffs2/wbuf.c
---- linux-2.6.28.7/fs/jffs2/wbuf.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/jffs2/wbuf.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1012,7 +1012,8 @@ static const struct jffs2_unknown_node o
- {
- .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
- .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
-- .totlen = constant_cpu_to_je32(8)
-+ .totlen = constant_cpu_to_je32(8),
-+ .hdr_crc = constant_cpu_to_je32(0)
- };
-
- /*
-diff -urNp linux-2.6.28.7/fs/locks.c linux-2.6.28.7/fs/locks.c
---- linux-2.6.28.7/fs/locks.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/locks.c 2009-02-21 09:37:49.000000000 -0500
-@@ -2006,16 +2006,16 @@ void locks_remove_flock(struct file *fil
- return;
-
- if (filp->f_op && filp->f_op->flock) {
-- struct file_lock fl = {
-+ struct file_lock flock = {
- .fl_pid = current->tgid,
- .fl_file = filp,
- .fl_flags = FL_FLOCK,
- .fl_type = F_UNLCK,
- .fl_end = OFFSET_MAX,
- };
-- filp->f_op->flock(filp, F_SETLKW, &fl);
-- if (fl.fl_ops && fl.fl_ops->fl_release_private)
-- fl.fl_ops->fl_release_private(&fl);
-+ filp->f_op->flock(filp, F_SETLKW, &flock);
-+ if (flock.fl_ops && flock.fl_ops->fl_release_private)
-+ flock.fl_ops->fl_release_private(&flock);
- }
-
- lock_kernel();
-diff -urNp linux-2.6.28.7/fs/namei.c linux-2.6.28.7/fs/namei.c
---- linux-2.6.28.7/fs/namei.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/namei.c 2009-03-07 04:29:14.000000000 -0500
-@@ -633,7 +633,7 @@ static __always_inline int __do_follow_l
- cookie = dentry->d_inode->i_op->follow_link(dentry, nd);
- error = PTR_ERR(cookie);
- if (!IS_ERR(cookie)) {
-- char *s = nd_get_link(nd);
-+ const char *s = nd_get_link(nd);
- error = 0;
- if (s)
- error = __vfs_follow_link(nd, s);
-@@ -664,6 +664,13 @@ static inline int do_follow_link(struct
- err = security_inode_follow_link(path->dentry, nd);
- if (err)
- goto loop;
-+
-+ if (gr_handle_follow_link(path->dentry->d_parent->d_inode,
-+ path->dentry->d_inode, path->dentry, nd->path.mnt)) {
-+ err = -EACCES;
-+ goto loop;
-+ }
-+
- current->link_count++;
- current->total_link_count++;
- nd->depth++;
-@@ -1012,11 +1019,18 @@ return_reval:
- break;
- }
- return_base:
-+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
-+ path_put(&nd->path);
-+ return -ENOENT;
-+ }
- return 0;
- out_dput:
- path_put_conditional(&next, nd);
- break;
- }
-+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt))
-+ err = -ENOENT;
-+
- path_put(&nd->path);
- return_err:
- return err;
-@@ -1582,9 +1596,17 @@ static int __open_namei_create(struct na
- int error;
- struct dentry *dir = nd->path.dentry;
-
-+ if (!gr_acl_handle_creat(path->dentry, nd->path.dentry, nd->path.mnt, flag, mode)) {
-+ error = -EACCES;
-+ goto out_unlock_dput;
-+ }
-+
- if (!IS_POSIXACL(dir->d_inode))
- mode &= ~current->fs->umask;
- error = vfs_create(dir->d_inode, path->dentry, mode, nd);
-+ if (!error)
-+ gr_handle_create(path->dentry, nd->path.mnt);
-+out_unlock_dput:
- mutex_unlock(&dir->d_inode->i_mutex);
- dput(nd->path.dentry);
- nd->path.dentry = path->dentry;
-@@ -1665,6 +1687,17 @@ struct file *do_filp_open(int dfd, const
- &nd, flag);
- if (error)
- return ERR_PTR(error);
-+
-+ if (gr_handle_rawio(nd.path.dentry->d_inode)) {
-+ error = -EPERM;
-+ goto exit;
-+ }
-+
-+ if (!gr_acl_handle_open(nd.path.dentry, nd.path.mnt, flag)) {
-+ error = -EACCES;
-+ goto exit;
-+ }
-+
- goto ok;
- }
-
-@@ -1737,6 +1770,20 @@ do_last:
- /*
- * It already exists.
- */
-+
-+ if (gr_handle_rawio(path.dentry->d_inode)) {
-+ error = -EPERM;
-+ goto exit_mutex_unlock;
-+ }
-+ if (!gr_acl_handle_open(path.dentry, nd.path.mnt, flag)) {
-+ error = -EACCES;
-+ goto exit_mutex_unlock;
-+ }
-+ if (gr_handle_fifo(path.dentry, nd.path.mnt, dir, flag, acc_mode)) {
-+ error = -EACCES;
-+ goto exit_mutex_unlock;
-+ }
-+
- mutex_unlock(&dir->d_inode->i_mutex);
- audit_inode(pathname, path.dentry);
-
-@@ -1822,6 +1869,13 @@ do_link:
- error = security_inode_follow_link(path.dentry, &nd);
- if (error)
- goto exit_dput;
-+
-+ if (gr_handle_follow_link(path.dentry->d_parent->d_inode, path.dentry->d_inode,
-+ path.dentry, nd.path.mnt)) {
-+ error = -EACCES;
-+ goto exit_dput;
-+ }
-+
- error = __do_follow_link(&path, &nd);
- if (error) {
- /* Does someone understand code flow here? Or it is only
-@@ -1994,6 +2048,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const
- error = may_mknod(mode);
- if (error)
- goto out_dput;
-+
-+ if (gr_handle_chroot_mknod(dentry, nd.path.mnt, mode)) {
-+ error = -EPERM;
-+ goto out_dput;
-+ }
-+
-+ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) {
-+ error = -EACCES;
-+ goto out_dput;
-+ }
-+
- error = mnt_want_write(nd.path.mnt);
- if (error)
- goto out_dput;
-@@ -2010,6 +2075,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const
- break;
- }
- mnt_drop_write(nd.path.mnt);
-+
-+ if (!error)
-+ gr_handle_create(dentry, nd.path.mnt);
- out_dput:
- dput(dentry);
- out_unlock:
-@@ -2063,6 +2131,11 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const
- if (IS_ERR(dentry))
- goto out_unlock;
-
-+ if (!gr_acl_handle_mkdir(dentry, nd.path.dentry, nd.path.mnt)) {
-+ error = -EACCES;
-+ goto out_dput;
-+ }
-+
- if (!IS_POSIXACL(nd.path.dentry->d_inode))
- mode &= ~current->fs->umask;
- error = mnt_want_write(nd.path.mnt);
-@@ -2070,6 +2143,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const
- goto out_dput;
- error = vfs_mkdir(nd.path.dentry->d_inode, dentry, mode);
- mnt_drop_write(nd.path.mnt);
-+
-+ if (!error)
-+ gr_handle_create(dentry, nd.path.mnt);
-+
- out_dput:
- dput(dentry);
- out_unlock:
-@@ -2151,6 +2228,8 @@ static long do_rmdir(int dfd, const char
- char * name;
- struct dentry *dentry;
- struct nameidata nd;
-+ ino_t saved_ino = 0;
-+ dev_t saved_dev = 0;
-
- error = user_path_parent(dfd, pathname, &nd, &name);
- if (error)
-@@ -2175,11 +2254,26 @@ static long do_rmdir(int dfd, const char
- error = PTR_ERR(dentry);
- if (IS_ERR(dentry))
- goto exit2;
-+
-+ if (dentry->d_inode != NULL) {
-+ if (dentry->d_inode->i_nlink <= 1) {
-+ saved_ino = dentry->d_inode->i_ino;
-+ saved_dev = dentry->d_inode->i_sb->s_dev;
-+ }
-+
-+ if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
-+ error = -EACCES;
-+ goto exit3;
-+ }
-+ }
-+
- error = mnt_want_write(nd.path.mnt);
- if (error)
- goto exit3;
- error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
- mnt_drop_write(nd.path.mnt);
-+ if (!error && (saved_dev || saved_ino))
-+ gr_handle_delete(saved_ino, saved_dev);
- exit3:
- dput(dentry);
- exit2:
-@@ -2239,6 +2333,8 @@ static long do_unlinkat(int dfd, const c
- struct dentry *dentry;
- struct nameidata nd;
- struct inode *inode = NULL;
-+ ino_t saved_ino = 0;
-+ dev_t saved_dev = 0;
-
- error = user_path_parent(dfd, pathname, &nd, &name);
- if (error)
-@@ -2258,12 +2354,25 @@ static long do_unlinkat(int dfd, const c
- if (nd.last.name[nd.last.len])
- goto slashes;
- inode = dentry->d_inode;
-- if (inode)
-+ if (inode) {
-+ if (inode->i_nlink <= 1) {
-+ saved_ino = inode->i_ino;
-+ saved_dev = inode->i_sb->s_dev;
-+ }
-+
- atomic_inc(&inode->i_count);
-+
-+ if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
-+ error = -EACCES;
-+ goto exit2;
-+ }
-+ }
- error = mnt_want_write(nd.path.mnt);
- if (error)
- goto exit2;
- error = vfs_unlink(nd.path.dentry->d_inode, dentry);
-+ if (!error && (saved_ino || saved_dev))
-+ gr_handle_delete(saved_ino, saved_dev);
- mnt_drop_write(nd.path.mnt);
- exit2:
- dput(dentry);
-@@ -2341,10 +2450,17 @@ SYSCALL_DEFINE3(symlinkat, const char __
- if (IS_ERR(dentry))
- goto out_unlock;
-
-+ if (!gr_acl_handle_symlink(dentry, nd.path.dentry, nd.path.mnt, from)) {
-+ error = -EACCES;
-+ goto out_dput;
-+ }
-+
- error = mnt_want_write(nd.path.mnt);
- if (error)
- goto out_dput;
- error = vfs_symlink(nd.path.dentry->d_inode, dentry, from);
-+ if (!error)
-+ gr_handle_create(dentry, nd.path.mnt);
- mnt_drop_write(nd.path.mnt);
- out_dput:
- dput(dentry);
-@@ -2437,10 +2553,26 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con
- error = PTR_ERR(new_dentry);
- if (IS_ERR(new_dentry))
- goto out_unlock;
-+
-+ if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
-+ old_path.dentry->d_inode,
-+ old_path.dentry->d_inode->i_mode, to)) {
-+ error = -EACCES;
-+ goto out_dput;
-+ }
-+
-+ if (!gr_acl_handle_link(new_dentry, nd.path.dentry, nd.path.mnt,
-+ old_path.dentry, old_path.mnt, to)) {
-+ error = -EACCES;
-+ goto out_dput;
-+ }
-+
- error = mnt_want_write(nd.path.mnt);
- if (error)
- goto out_dput;
- error = vfs_link(old_path.dentry, nd.path.dentry->d_inode, new_dentry);
-+ if (!error)
-+ gr_handle_create(new_dentry, nd.path.mnt);
- mnt_drop_write(nd.path.mnt);
- out_dput:
- dput(new_dentry);
-@@ -2673,11 +2805,21 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c
- if (new_dentry == trap)
- goto exit5;
-
-+ error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
-+ old_dentry, old_dir->d_inode, oldnd.path.mnt,
-+ to);
-+ if (error)
-+ goto exit5;
-+
- error = mnt_want_write(oldnd.path.mnt);
- if (error)
- goto exit5;
- error = vfs_rename(old_dir->d_inode, old_dentry,
- new_dir->d_inode, new_dentry);
-+ if (!error)
-+ gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
-+ new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0);
-+
- mnt_drop_write(oldnd.path.mnt);
- exit5:
- dput(new_dentry);
-diff -urNp linux-2.6.28.7/fs/namespace.c linux-2.6.28.7/fs/namespace.c
---- linux-2.6.28.7/fs/namespace.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/namespace.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1094,6 +1094,8 @@ static int do_umount(struct vfsmount *mn
- lock_kernel();
- retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
- unlock_kernel();
-+
-+ gr_log_remount(mnt->mnt_devname, retval);
- }
- up_write(&sb->s_umount);
- return retval;
-@@ -1117,6 +1119,9 @@ static int do_umount(struct vfsmount *mn
- security_sb_umount_busy(mnt);
- up_write(&namespace_sem);
- release_mounts(&umount_list);
-+
-+ gr_log_unmount(mnt->mnt_devname, retval);
-+
- return retval;
- }
-
-@@ -1946,6 +1951,11 @@ long do_mount(char *dev_name, char *dir_
- if (retval)
- goto dput_out;
-
-+ if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
-+ retval = -EPERM;
-+ goto dput_out;
-+ }
-+
- if (flags & MS_REMOUNT)
- retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
- data_page);
-@@ -1960,6 +1970,9 @@ long do_mount(char *dev_name, char *dir_
- dev_name, data_page);
- dput_out:
- path_put(&path);
-+
-+ gr_log_mount(dev_name, dir_name, retval);
-+
- return retval;
- }
-
-@@ -2071,6 +2084,9 @@ SYSCALL_DEFINE5(mount, char __user *, de
- if (retval < 0)
- goto out3;
-
-+ if (gr_handle_chroot_pivot())
-+ return -EPERM;
-+
- lock_kernel();
- retval = do_mount((char *)dev_page, dir_page, (char *)type_page,
- flags, (void *)data_page);
-diff -urNp linux-2.6.28.7/fs/nfs/nfs4proc.c linux-2.6.28.7/fs/nfs/nfs4proc.c
---- linux-2.6.28.7/fs/nfs/nfs4proc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/nfs/nfs4proc.c 2009-02-21 09:37:49.000000000 -0500
-@@ -653,7 +653,7 @@ static int _nfs4_do_open_reclaim(struct
- static int nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state *state)
- {
- struct nfs_server *server = NFS_SERVER(state->inode);
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = _nfs4_do_open_reclaim(ctx, state);
-@@ -695,7 +695,7 @@ static int _nfs4_open_delegation_recall(
-
- int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- struct nfs_server *server = NFS_SERVER(state->inode);
- int err;
- do {
-@@ -988,7 +988,7 @@ static int _nfs4_open_expired(struct nfs
- static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
- {
- struct nfs_server *server = NFS_SERVER(state->inode);
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- do {
-@@ -1090,7 +1090,7 @@ out_err:
-
- static struct nfs4_state *nfs4_do_open(struct inode *dir, struct path *path, int flags, struct iattr *sattr, struct rpc_cred *cred)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- struct nfs4_state *res;
- int status;
-
-@@ -1181,7 +1181,7 @@ static int nfs4_do_setattr(struct inode
- struct nfs4_state *state)
- {
- struct nfs_server *server = NFS_SERVER(inode);
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(server,
-@@ -1494,7 +1494,7 @@ static int _nfs4_server_capabilities(str
-
- int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(server,
-@@ -1527,7 +1527,7 @@ static int _nfs4_lookup_root(struct nfs_
- static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
- struct nfs_fsinfo *info)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(server,
-@@ -1616,7 +1616,7 @@ static int _nfs4_proc_getattr(struct nfs
-
- static int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(server,
-@@ -1704,7 +1704,7 @@ static int nfs4_proc_lookupfh(struct nfs
- struct qstr *name, struct nfs_fh *fhandle,
- struct nfs_fattr *fattr)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = _nfs4_proc_lookupfh(server, dirfh, name, fhandle, fattr);
-@@ -1733,7 +1733,7 @@ static int _nfs4_proc_lookup(struct inod
-
- static int nfs4_proc_lookup(struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(dir),
-@@ -1797,7 +1797,7 @@ static int _nfs4_proc_access(struct inod
-
- static int nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(inode),
-@@ -1852,7 +1852,7 @@ static int _nfs4_proc_readlink(struct in
- static int nfs4_proc_readlink(struct inode *inode, struct page *page,
- unsigned int pgbase, unsigned int pglen)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(inode),
-@@ -1949,7 +1949,7 @@ static int _nfs4_proc_remove(struct inod
-
- static int nfs4_proc_remove(struct inode *dir, struct qstr *name)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(dir),
-@@ -2021,7 +2021,7 @@ static int _nfs4_proc_rename(struct inod
- static int nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
- struct inode *new_dir, struct qstr *new_name)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(old_dir),
-@@ -2068,7 +2068,7 @@ static int _nfs4_proc_link(struct inode
-
- static int nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(inode),
-@@ -2159,7 +2159,7 @@ out:
- static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry,
- struct page *page, unsigned int len, struct iattr *sattr)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(dir),
-@@ -2190,7 +2190,7 @@ out:
- static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
- struct iattr *sattr)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(dir),
-@@ -2239,7 +2239,7 @@ static int _nfs4_proc_readdir(struct den
- static int nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
- u64 cookie, struct page *page, unsigned int count, int plus)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(dentry->d_inode),
-@@ -2287,7 +2287,7 @@ out:
- static int nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
- struct iattr *sattr, dev_t rdev)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(dir),
-@@ -2316,7 +2316,7 @@ static int _nfs4_proc_statfs(struct nfs_
-
- static int nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *fsstat)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(server,
-@@ -2344,7 +2344,7 @@ static int _nfs4_do_fsinfo(struct nfs_se
-
- static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- do {
-@@ -2387,7 +2387,7 @@ static int _nfs4_proc_pathconf(struct nf
- static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
- struct nfs_pathconf *pathconf)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- do {
-@@ -2674,7 +2674,7 @@ out_free:
-
- static ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- ssize_t ret;
- do {
- ret = __nfs4_get_acl_uncached(inode, buf, buflen);
-@@ -2731,7 +2731,7 @@ static int __nfs4_proc_set_acl(struct in
-
- static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = nfs4_handle_exception(NFS_SERVER(inode),
-@@ -3022,7 +3022,7 @@ out:
- int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync)
- {
- struct nfs_server *server = NFS_SERVER(inode);
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
- do {
- err = _nfs4_proc_delegreturn(inode, cred, stateid, issync);
-@@ -3097,7 +3097,7 @@ out:
-
- static int nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock *request)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- do {
-@@ -3447,7 +3447,7 @@ static int _nfs4_do_setlk(struct nfs4_st
- static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request)
- {
- struct nfs_server *server = NFS_SERVER(state->inode);
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- do {
-@@ -3465,7 +3465,7 @@ static int nfs4_lock_reclaim(struct nfs4
- static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request)
- {
- struct nfs_server *server = NFS_SERVER(state->inode);
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- err = nfs4_set_lock_state(state, request);
-@@ -3526,7 +3526,7 @@ out:
-
- static int nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
- {
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- do {
-@@ -3576,7 +3576,7 @@ nfs4_proc_lock(struct file *filp, int cm
- int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
- {
- struct nfs_server *server = NFS_SERVER(state->inode);
-- struct nfs4_exception exception = { };
-+ struct nfs4_exception exception = {0, 0};
- int err;
-
- err = nfs4_set_lock_state(state, fl);
-diff -urNp linux-2.6.28.7/fs/nfsd/export.c linux-2.6.28.7/fs/nfsd/export.c
---- linux-2.6.28.7/fs/nfsd/export.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/nfsd/export.c 2009-02-21 09:37:49.000000000 -0500
-@@ -472,7 +472,7 @@ static int secinfo_parse(char **mesg, ch
- * probably discover the problem when someone fails to
- * authenticate.
- */
-- if (f->pseudoflavor < 0)
-+ if ((s32)f->pseudoflavor < 0)
- return -EINVAL;
- err = get_int(mesg, &f->flags);
- if (err)
-diff -urNp linux-2.6.28.7/fs/nls/nls_base.c linux-2.6.28.7/fs/nls/nls_base.c
---- linux-2.6.28.7/fs/nls/nls_base.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/nls/nls_base.c 2009-02-21 09:37:49.000000000 -0500
-@@ -40,7 +40,7 @@ static const struct utf8_table utf8_tabl
- {0xF8, 0xF0, 3*6, 0x1FFFFF, 0x10000, /* 4 byte sequence */},
- {0xFC, 0xF8, 4*6, 0x3FFFFFF, 0x200000, /* 5 byte sequence */},
- {0xFE, 0xFC, 5*6, 0x7FFFFFFF, 0x4000000, /* 6 byte sequence */},
-- {0, /* end of table */}
-+ {0, 0, 0, 0, 0, /* end of table */}
- };
-
- int
-diff -urNp linux-2.6.28.7/fs/ntfs/file.c linux-2.6.28.7/fs/ntfs/file.c
---- linux-2.6.28.7/fs/ntfs/file.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/ntfs/file.c 2009-02-21 09:37:49.000000000 -0500
-@@ -2291,6 +2291,6 @@ const struct inode_operations ntfs_file_
- #endif /* NTFS_RW */
- };
-
--const struct file_operations ntfs_empty_file_ops = {};
-+const struct file_operations ntfs_empty_file_ops;
-
--const struct inode_operations ntfs_empty_inode_ops = {};
-+const struct inode_operations ntfs_empty_inode_ops;
-diff -urNp linux-2.6.28.7/fs/open.c linux-2.6.28.7/fs/open.c
---- linux-2.6.28.7/fs/open.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/open.c 2009-02-21 09:37:49.000000000 -0500
-@@ -205,6 +205,9 @@ int do_truncate(struct dentry *dentry, l
- if (length < 0)
- return -EINVAL;
-
-+ if (filp && !gr_acl_handle_truncate(dentry, filp->f_path.mnt))
-+ return -EACCES;
-+
- newattrs.ia_size = length;
- newattrs.ia_valid = ATTR_SIZE | time_attrs;
- if (filp) {
-@@ -510,6 +513,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, con
- if (__mnt_is_readonly(path.mnt))
- res = -EROFS;
-
-+ if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
-+ res = -EACCES;
-+
- out_path_release:
- path_put(&path);
- out:
-@@ -540,6 +546,8 @@ SYSCALL_DEFINE1(chdir, const char __user
- if (error)
- goto dput_and_out;
-
-+ gr_log_chdir(path.dentry, path.mnt);
-+
- set_fs_pwd(current->fs, &path);
-
- dput_and_out:
-@@ -566,6 +574,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd
- goto out_putf;
-
- error = inode_permission(inode, MAY_EXEC | MAY_ACCESS);
-+
-+ if (!error && !gr_chroot_fchdir(file->f_path.dentry, file->f_path.mnt))
-+ error = -EPERM;
-+
-+ if (!error)
-+ gr_log_chdir(file->f_path.dentry, file->f_path.mnt);
-+
- if (!error)
- set_fs_pwd(current->fs, &file->f_path);
- out_putf:
-@@ -591,7 +606,14 @@ SYSCALL_DEFINE1(chroot, const char __use
- if (!capable(CAP_SYS_CHROOT))
- goto dput_and_out;
-
-+ if (gr_handle_chroot_chroot(path.dentry, path.mnt))
-+ goto dput_and_out;
-+
- set_fs_root(current->fs, &path);
-+
-+ gr_handle_chroot_caps(current);
-+ gr_handle_chroot_chdir(&path);
-+
- error = 0;
- dput_and_out:
- path_put(&path);
-@@ -619,13 +641,28 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd
- err = mnt_want_write(file->f_path.mnt);
- if (err)
- goto out_putf;
-+
-+ if (!gr_acl_handle_fchmod(dentry, file->f_path.mnt, mode)) {
-+ err = -EACCES;
-+ goto out_drop_write;
-+ }
-+
- mutex_lock(&inode->i_mutex);
- if (mode == (mode_t) -1)
- mode = inode->i_mode;
-+
-+ if (gr_handle_chroot_chmod(dentry, file->f_path.mnt, mode)) {
-+ err = -EPERM;
-+ mutex_unlock(&inode->i_mutex);
-+ goto out_drop_write;
-+ }
-+
- newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
- newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
- err = notify_change(dentry, &newattrs);
- mutex_unlock(&inode->i_mutex);
-+
-+out_drop_write:
- mnt_drop_write(file->f_path.mnt);
- out_putf:
- fput(file);
-@@ -648,13 +685,28 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, cons
- error = mnt_want_write(path.mnt);
- if (error)
- goto dput_and_out;
-+
-+ if (!gr_acl_handle_chmod(path.dentry, path.mnt, mode)) {
-+ error = -EACCES;
-+ goto out_drop_write;
-+ }
-+
- mutex_lock(&inode->i_mutex);
- if (mode == (mode_t) -1)
- mode = inode->i_mode;
-+
-+ if (gr_handle_chroot_chmod(path.dentry, path.mnt, mode)) {
-+ error = -EACCES;
-+ mutex_unlock(&inode->i_mutex);
-+ goto out_drop_write;
-+ }
-+
- newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
- newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
- error = notify_change(path.dentry, &newattrs);
- mutex_unlock(&inode->i_mutex);
-+
-+out_drop_write:
- mnt_drop_write(path.mnt);
- dput_and_out:
- path_put(&path);
-@@ -667,12 +719,15 @@ SYSCALL_DEFINE2(chmod, const char __user
- return sys_fchmodat(AT_FDCWD, filename, mode);
- }
-
--static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
-+static int chown_common(struct dentry * dentry, uid_t user, gid_t group, struct vfsmount *mnt)
- {
- struct inode *inode = dentry->d_inode;
- int error;
- struct iattr newattrs;
-
-+ if (!gr_acl_handle_chown(dentry, mnt))
-+ return -EACCES;
-+
- newattrs.ia_valid = ATTR_CTIME;
- if (user != (uid_t) -1) {
- newattrs.ia_valid |= ATTR_UID;
-@@ -703,7 +758,7 @@ SYSCALL_DEFINE3(chown, const char __user
- error = mnt_want_write(path.mnt);
- if (error)
- goto out_release;
-- error = chown_common(path.dentry, user, group);
-+ error = chown_common(path.dentry, user, group, path.mnt);
- mnt_drop_write(path.mnt);
- out_release:
- path_put(&path);
-@@ -728,7 +783,7 @@ SYSCALL_DEFINE5(fchownat, int, dfd, cons
- error = mnt_want_write(path.mnt);
- if (error)
- goto out_release;
-- error = chown_common(path.dentry, user, group);
-+ error = chown_common(path.dentry, user, group, path.mnt);
- mnt_drop_write(path.mnt);
- out_release:
- path_put(&path);
-@@ -747,7 +802,7 @@ SYSCALL_DEFINE3(lchown, const char __use
- error = mnt_want_write(path.mnt);
- if (error)
- goto out_release;
-- error = chown_common(path.dentry, user, group);
-+ error = chown_common(path.dentry, user, group, path.mnt);
- mnt_drop_write(path.mnt);
- out_release:
- path_put(&path);
-@@ -770,7 +825,7 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd
- goto out_fput;
- dentry = file->f_path.dentry;
- audit_inode(NULL, dentry);
-- error = chown_common(dentry, user, group);
-+ error = chown_common(dentry, user, group, file->f_path.mnt);
- mnt_drop_write(file->f_path.mnt);
- out_fput:
- fput(file);
-diff -urNp linux-2.6.28.7/fs/pipe.c linux-2.6.28.7/fs/pipe.c
---- linux-2.6.28.7/fs/pipe.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/pipe.c 2009-02-21 09:37:49.000000000 -0500
-@@ -848,7 +848,7 @@ void free_pipe_info(struct inode *inode)
- inode->i_pipe = NULL;
- }
-
--static struct vfsmount *pipe_mnt __read_mostly;
-+struct vfsmount *pipe_mnt __read_mostly;
- static int pipefs_delete_dentry(struct dentry *dentry)
- {
- /*
-diff -urNp linux-2.6.28.7/fs/proc/array.c linux-2.6.28.7/fs/proc/array.c
---- linux-2.6.28.7/fs/proc/array.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/array.c 2009-02-21 09:37:49.000000000 -0500
-@@ -308,6 +308,21 @@ static inline void task_context_switch_c
- p->nivcsw);
- }
-
-+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
-+static inline void task_pax(struct seq_file *m, struct task_struct *p)
-+{
-+ if (p->mm)
-+ seq_printf(m, "PaX:\t%c%c%c%c%c\n",
-+ p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
-+ p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
-+ p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
-+ p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
-+ p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
-+ else
-+ seq_printf(m, "PaX:\t-----\n");
-+}
-+#endif
-+
- int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
- struct pid *pid, struct task_struct *task)
- {
-@@ -327,9 +342,20 @@ int proc_pid_status(struct seq_file *m,
- task_show_regs(m, task);
- #endif
- task_context_switch_counts(m, task);
-+
-+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
-+ task_pax(m, task);
-+#endif
-+
- return 0;
- }
-
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
-+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
-+ _mm->pax_flags & MF_PAX_SEGMEXEC))
-+#endif
-+
- static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
- struct pid *pid, struct task_struct *task, int whole)
- {
-@@ -422,6 +448,19 @@ static int do_task_stat(struct seq_file
- gtime = task_gtime(task);
- }
-
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ if (PAX_RAND_FLAGS(mm)) {
-+ eip = 0;
-+ esp = 0;
-+ wchan = 0;
-+ }
-+#endif
-+#ifdef CONFIG_GRKERNSEC_HIDESYM
-+ wchan = 0;
-+ eip =0;
-+ esp =0;
-+#endif
-+
- /* scale priority and nice values from timeslices to -20..20 */
- /* to make it look like a "normal" Unix priority/nice value */
- priority = task_prio(task);
-@@ -462,9 +501,15 @@ static int do_task_stat(struct seq_file
- vsize,
- mm ? get_mm_rss(mm) : 0,
- rsslim,
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ PAX_RAND_FLAGS(mm) ? 1 : (mm ? mm->start_code : 0),
-+ PAX_RAND_FLAGS(mm) ? 1 : (mm ? mm->end_code : 0),
-+ PAX_RAND_FLAGS(mm) ? 0 : (mm ? mm->start_stack : 0),
-+#else
- mm ? mm->start_code : 0,
- mm ? mm->end_code : 0,
- mm ? mm->start_stack : 0,
-+#endif
- esp,
- eip,
- /* The signal information here is obsolete.
-@@ -517,3 +562,10 @@ int proc_pid_statm(struct seq_file *m, s
-
- return 0;
- }
-+
-+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
-+int proc_pid_ipaddr(struct task_struct *task, char *buffer)
-+{
-+ return sprintf(buffer, "%u.%u.%u.%u\n", NIPQUAD(task->signal->curr_ip));
-+}
-+#endif
-diff -urNp linux-2.6.28.7/fs/proc/base.c linux-2.6.28.7/fs/proc/base.c
---- linux-2.6.28.7/fs/proc/base.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/base.c 2009-03-07 05:50:38.000000000 -0500
-@@ -225,6 +225,9 @@ static int check_mem_permission(struct t
- if (task == current)
- return 0;
-
-+ if (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))
-+ return -EPERM;
-+
- /*
- * If current is actively ptrace'ing, and would also be
- * permitted to freshly attach with ptrace now, permit it.
-@@ -302,15 +305,29 @@ out:
- return res;
- }
-
--static int proc_pid_auxv(struct task_struct *task, char *buffer)
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
-+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
-+ _mm->pax_flags & MF_PAX_SEGMEXEC))
-+#endif
-+
-+static
-+int proc_pid_auxv(struct task_struct *task, char *buffer)
- {
- int res = 0;
- struct mm_struct *mm = get_task_mm(task);
- if (mm) {
- unsigned int nwords = 0;
-- do
-+
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ if (PAX_RAND_FLAGS(mm)) {
-+ mmput(mm);
-+ return res;
-+ }
-+#endif
-+ do {
- nwords += 2;
-- while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
-+ } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
- res = nwords * sizeof(mm->saved_auxv[0]);
- if (res > PAGE_SIZE)
- res = PAGE_SIZE;
-@@ -502,7 +519,7 @@ static int proc_pid_limits(struct task_s
- return count;
- }
-
--#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
-+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
- static int proc_pid_syscall(struct task_struct *task, char *buffer)
- {
- long nr;
-@@ -1429,7 +1446,11 @@ static struct inode *proc_pid_make_inode
- inode->i_gid = 0;
- if (task_dumpable(task)) {
- inode->i_uid = task->euid;
-+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
-+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
-+#else
- inode->i_gid = task->egid;
-+#endif
- }
- security_task_to_inode(task, inode);
-
-@@ -1445,17 +1466,45 @@ static int pid_getattr(struct vfsmount *
- {
- struct inode *inode = dentry->d_inode;
- struct task_struct *task;
-+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ struct task_struct *tmp = current;
-+#endif
-+
- generic_fillattr(inode, stat);
-
- rcu_read_lock();
- stat->uid = 0;
- stat->gid = 0;
- task = pid_task(proc_pid(inode), PIDTYPE_PID);
-- if (task) {
-+
-+ if (task && (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))) {
-+ rcu_read_unlock();
-+ return -ENOENT;
-+ }
-+
-+
-+ if (task
-+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ && (!tmp->uid || (tmp->uid == task->uid)
-+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
-+ || in_group_p(CONFIG_GRKERNSEC_PROC_GID)
-+#endif
-+ )
-+#endif
-+ ) {
- if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
-+#endif
- task_dumpable(task)) {
- stat->uid = task->euid;
-+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
-+ stat->gid = CONFIG_GRKERNSEC_PROC_GID;
-+#else
- stat->gid = task->egid;
-+#endif
- }
- }
- rcu_read_unlock();
-@@ -1483,11 +1532,21 @@ static int pid_revalidate(struct dentry
- {
- struct inode *inode = dentry->d_inode;
- struct task_struct *task = get_proc_task(inode);
-+
- if (task) {
- if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
-+#endif
- task_dumpable(task)) {
- inode->i_uid = task->euid;
-+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
-+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
-+#else
- inode->i_gid = task->egid;
-+#endif
- } else {
- inode->i_uid = 0;
- inode->i_gid = 0;
-@@ -1855,12 +1914,22 @@ static const struct file_operations proc
- static int proc_fd_permission(struct inode *inode, int mask)
- {
- int rv;
-+ struct task_struct *task;
-
- rv = generic_permission(inode, mask, NULL);
-- if (rv == 0)
-- return 0;
-+
- if (task_pid(current) == proc_pid(inode))
- rv = 0;
-+
-+ task = get_proc_task(inode);
-+ if (task == NULL)
-+ return rv;
-+
-+ if (gr_acl_handle_procpidmem(task))
-+ rv = -EACCES;
-+
-+ put_task_struct(task);
-+
- return rv;
- }
-
-@@ -1971,6 +2040,9 @@ static struct dentry *proc_pident_lookup
- if (!task)
- goto out_no_task;
-
-+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
-+ goto out;
-+
- /*
- * Yes, it does not scale. And it should not. Don't add
- * new entries into /proc/<tgid>/ without very good reasons.
-@@ -2015,6 +2087,9 @@ static int proc_pident_readdir(struct fi
- if (!task)
- goto out_no_task;
-
-+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
-+ goto out;
-+
- ret = 0;
- i = filp->f_pos;
- switch (i) {
-@@ -2377,6 +2452,9 @@ static struct dentry *proc_base_lookup(s
- if (p > last)
- goto out;
-
-+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
-+ goto out;
-+
- error = proc_base_instantiate(dir, dentry, task, p);
-
- out:
-@@ -2463,7 +2541,7 @@ static const struct pid_entry tgid_base_
- #ifdef CONFIG_SCHED_DEBUG
- REG("sched", S_IRUGO|S_IWUSR, pid_sched),
- #endif
--#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
-+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
- INF("syscall", S_IRUSR, pid_syscall),
- #endif
- INF("cmdline", S_IRUGO, pid_cmdline),
-@@ -2518,6 +2596,9 @@ static const struct pid_entry tgid_base_
- #ifdef CONFIG_TASK_IO_ACCOUNTING
- INF("io", S_IRUGO, tgid_io_accounting),
- #endif
-+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
-+ INF("ipaddr", S_IRUSR, pid_ipaddr),
-+#endif
- };
-
- static int proc_tgid_base_readdir(struct file * filp,
-@@ -2647,7 +2728,14 @@ static struct dentry *proc_pid_instantia
- if (!inode)
- goto out;
-
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
-+ inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
-+#else
- inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
-+#endif
- inode->i_op = &proc_tgid_base_inode_operations;
- inode->i_fop = &proc_tgid_base_operations;
- inode->i_flags|=S_IMMUTABLE;
-@@ -2689,7 +2777,11 @@ struct dentry *proc_pid_lookup(struct in
- if (!task)
- goto out;
-
-+ if (gr_check_hidden_task(task))
-+ goto out_put_task;
-+
- result = proc_pid_instantiate(dir, dentry, task, NULL);
-+out_put_task:
- put_task_struct(task);
- out:
- return result;
-@@ -2754,6 +2846,9 @@ int proc_pid_readdir(struct file * filp,
- {
- unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
- struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);
-+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ struct task_struct *tmp = current;
-+#endif
- struct tgid_iter iter;
- struct pid_namespace *ns;
-
-@@ -2772,6 +2867,17 @@ int proc_pid_readdir(struct file * filp,
- for (iter = next_tgid(ns, iter);
- iter.task;
- iter.tgid += 1, iter = next_tgid(ns, iter)) {
-+ if (gr_pid_is_chrooted(iter.task) || gr_check_hidden_task(iter.task)
-+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ || (tmp->uid && (iter.task->uid != tmp->uid)
-+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
-+ && !in_group_p(CONFIG_GRKERNSEC_PROC_GID)
-+#endif
-+ )
-+#endif
-+ )
-+ continue;
-+
- filp->f_pos = iter.tgid + TGID_OFFSET;
- if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) {
- put_task_struct(iter.task);
-@@ -2799,7 +2905,7 @@ static const struct pid_entry tid_base_s
- #ifdef CONFIG_SCHED_DEBUG
- REG("sched", S_IRUGO|S_IWUSR, pid_sched),
- #endif
--#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
-+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
- INF("syscall", S_IRUSR, pid_syscall),
- #endif
- INF("cmdline", S_IRUGO, pid_cmdline),
-diff -urNp linux-2.6.28.7/fs/proc/cmdline.c linux-2.6.28.7/fs/proc/cmdline.c
---- linux-2.6.28.7/fs/proc/cmdline.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/cmdline.c 2009-02-21 09:37:49.000000000 -0500
-@@ -23,7 +23,11 @@ static const struct file_operations cmdl
-
- static int __init proc_cmdline_init(void)
- {
-+#ifdef CONFIG_GRKERNSEC_PROC_ADD
-+ proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
-+#else
- proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
-+#endif
- return 0;
- }
- module_init(proc_cmdline_init);
-diff -urNp linux-2.6.28.7/fs/proc/devices.c linux-2.6.28.7/fs/proc/devices.c
---- linux-2.6.28.7/fs/proc/devices.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/devices.c 2009-02-21 09:37:49.000000000 -0500
-@@ -64,7 +64,11 @@ static const struct file_operations proc
-
- static int __init proc_devices_init(void)
- {
-+#ifdef CONFIG_GRKERNSEC_PROC_ADD
-+ proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
-+#else
- proc_create("devices", 0, NULL, &proc_devinfo_operations);
-+#endif
- return 0;
- }
- module_init(proc_devices_init);
-diff -urNp linux-2.6.28.7/fs/proc/inode.c linux-2.6.28.7/fs/proc/inode.c
---- linux-2.6.28.7/fs/proc/inode.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/inode.c 2009-02-21 09:37:49.000000000 -0500
-@@ -466,7 +466,11 @@ struct inode *proc_get_inode(struct supe
- if (de->mode) {
- inode->i_mode = de->mode;
- inode->i_uid = de->uid;
-+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
-+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
-+#else
- inode->i_gid = de->gid;
-+#endif
- }
- if (de->size)
- inode->i_size = de->size;
-diff -urNp linux-2.6.28.7/fs/proc/internal.h linux-2.6.28.7/fs/proc/internal.h
---- linux-2.6.28.7/fs/proc/internal.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/internal.h 2009-02-21 09:37:49.000000000 -0500
-@@ -53,6 +53,9 @@ extern int proc_pid_status(struct seq_fi
- struct pid *pid, struct task_struct *task);
- extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
- struct pid *pid, struct task_struct *task);
-+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
-+extern int proc_pid_ipaddr(struct task_struct *task, char *buffer);
-+#endif
- extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
-
- extern const struct file_operations proc_maps_operations;
-diff -urNp linux-2.6.28.7/fs/proc/Kconfig linux-2.6.28.7/fs/proc/Kconfig
---- linux-2.6.28.7/fs/proc/Kconfig 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/Kconfig 2009-02-21 09:37:49.000000000 -0500
-@@ -30,12 +30,12 @@ config PROC_FS
-
- config PROC_KCORE
- bool "/proc/kcore support" if !ARM
-- depends on PROC_FS && MMU
-+ depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
-
- config PROC_VMCORE
- bool "/proc/vmcore support (EXPERIMENTAL)"
-- depends on PROC_FS && CRASH_DUMP
-- default y
-+ depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
-+ default n
- help
- Exports the dump image of crashed kernel in ELF format.
-
-@@ -59,8 +59,8 @@ config PROC_SYSCTL
- limited in memory.
-
- config PROC_PAGE_MONITOR
-- default y
-- depends on PROC_FS && MMU
-+ default n
-+ depends on PROC_FS && MMU && !GRKERNSEC
- bool "Enable /proc page monitoring" if EMBEDDED
- help
- Various /proc files exist to monitor process memory utilization:
-diff -urNp linux-2.6.28.7/fs/proc/kcore.c linux-2.6.28.7/fs/proc/kcore.c
---- linux-2.6.28.7/fs/proc/kcore.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/kcore.c 2009-02-21 09:37:49.000000000 -0500
-@@ -404,10 +404,12 @@ read_kcore(struct file *file, char __use
-
- static int __init proc_kcore_init(void)
- {
-+#if !defined(CONFIG_GRKERNSEC_PROC_ADD)
- proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
- if (proc_root_kcore)
- proc_root_kcore->size =
- (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
-+#endif
- return 0;
- }
- module_init(proc_kcore_init);
-diff -urNp linux-2.6.28.7/fs/proc/proc_net.c linux-2.6.28.7/fs/proc/proc_net.c
---- linux-2.6.28.7/fs/proc/proc_net.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/proc_net.c 2009-02-21 09:37:49.000000000 -0500
-@@ -106,6 +106,14 @@ static struct net *get_proc_task_net(str
- struct nsproxy *ns;
- struct net *net = NULL;
-
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ if (current->fsuid)
-+ return net;
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ if (current->fsuid && !in_group_p(CONFIG_GRKERNSEC_PROC_GID))
-+ return net;
-+#endif
-+
- rcu_read_lock();
- task = pid_task(proc_pid(dir), PIDTYPE_PID);
- if (task != NULL) {
-diff -urNp linux-2.6.28.7/fs/proc/proc_sysctl.c linux-2.6.28.7/fs/proc/proc_sysctl.c
---- linux-2.6.28.7/fs/proc/proc_sysctl.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/proc_sysctl.c 2009-02-21 09:37:49.000000000 -0500
-@@ -7,6 +7,8 @@
- #include <linux/security.h>
- #include "internal.h"
-
-+extern __u32 gr_handle_sysctl(const struct ctl_table *table, const int op);
-+
- static struct dentry_operations proc_sys_dentry_operations;
- static const struct file_operations proc_sys_file_operations;
- static const struct inode_operations proc_sys_inode_operations;
-@@ -110,6 +112,9 @@ static struct dentry *proc_sys_lookup(st
- if (!p)
- goto out;
-
-+ if (gr_handle_sysctl(p, MAY_EXEC))
-+ goto out;
-+
- err = ERR_PTR(-ENOMEM);
- inode = proc_sys_make_inode(dir->i_sb, h ? h : head, p);
- if (h)
-@@ -229,6 +234,9 @@ static int scan(struct ctl_table_header
- if (*pos < file->f_pos)
- continue;
-
-+ if (gr_handle_sysctl(table, 0))
-+ continue;
-+
- res = proc_sys_fill_cache(file, dirent, filldir, head, table);
- if (res)
- return res;
-@@ -345,6 +353,9 @@ static int proc_sys_getattr(struct vfsmo
- if (IS_ERR(head))
- return PTR_ERR(head);
-
-+ if (table && gr_handle_sysctl(table, MAY_EXEC))
-+ return -ENOENT;
-+
- generic_fillattr(inode, stat);
- if (table)
- stat->mode = (stat->mode & S_IFMT) | table->mode;
-diff -urNp linux-2.6.28.7/fs/proc/root.c linux-2.6.28.7/fs/proc/root.c
---- linux-2.6.28.7/fs/proc/root.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/root.c 2009-02-21 09:37:49.000000000 -0500
-@@ -135,7 +135,15 @@ void __init proc_root_init(void)
- #ifdef CONFIG_PROC_DEVICETREE
- proc_device_tree_init();
- #endif
-+#ifdef CONFIG_GRKERNSEC_PROC_ADD
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
-+#endif
-+#else
- proc_mkdir("bus", NULL);
-+#endif
- proc_sys_init();
- }
-
-diff -urNp linux-2.6.28.7/fs/proc/task_mmu.c linux-2.6.28.7/fs/proc/task_mmu.c
---- linux-2.6.28.7/fs/proc/task_mmu.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/proc/task_mmu.c 2009-02-21 09:37:49.000000000 -0500
-@@ -46,15 +46,26 @@ void task_mem(struct seq_file *m, struct
- "VmStk:\t%8lu kB\n"
- "VmExe:\t%8lu kB\n"
- "VmLib:\t%8lu kB\n"
-- "VmPTE:\t%8lu kB\n",
-- hiwater_vm << (PAGE_SHIFT-10),
-+ "VmPTE:\t%8lu kB\n"
-+
-+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
-+ "CsBase:\t%8lx\nCsLim:\t%8lx\n"
-+#endif
-+
-+ ,hiwater_vm << (PAGE_SHIFT-10),
- (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10),
- mm->locked_vm << (PAGE_SHIFT-10),
- hiwater_rss << (PAGE_SHIFT-10),
- total_rss << (PAGE_SHIFT-10),
- data << (PAGE_SHIFT-10),
- mm->stack_vm << (PAGE_SHIFT-10), text, lib,
-- (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10);
-+ (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10
-+
-+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
-+ , mm->context.user_cs_base, mm->context.user_cs_limit
-+#endif
-+
-+ );
- }
-
- unsigned long task_vsize(struct mm_struct *mm)
-@@ -198,6 +209,12 @@ static int do_maps_open(struct inode *in
- return ret;
- }
-
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
-+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
-+ _mm->pax_flags & MF_PAX_SEGMEXEC))
-+#endif
-+
- static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
- {
- struct mm_struct *mm = vma->vm_mm;
-@@ -214,13 +231,22 @@ static void show_map_vma(struct seq_file
- }
-
- seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start,
-+ PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end,
-+#else
- vma->vm_start,
- vma->vm_end,
-+#endif
- flags & VM_READ ? 'r' : '-',
- flags & VM_WRITE ? 'w' : '-',
- flags & VM_EXEC ? 'x' : '-',
- flags & VM_MAYSHARE ? 's' : 'p',
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ PAX_RAND_FLAGS(mm) ? 0UL : ((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
-+#else
- ((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
-+#endif
- MAJOR(dev), MINOR(dev), ino, &len);
-
- /*
-@@ -234,11 +260,11 @@ static void show_map_vma(struct seq_file
- const char *name = arch_vma_name(vma);
- if (!name) {
- if (mm) {
-- if (vma->vm_start <= mm->start_brk &&
-- vma->vm_end >= mm->brk) {
-+ if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
- name = "[heap]";
-- } else if (vma->vm_start <= mm->start_stack &&
-- vma->vm_end >= mm->start_stack) {
-+ } else if ((vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
-+ (vma->vm_start <= mm->start_stack &&
-+ vma->vm_end >= mm->start_stack)) {
- name = "[stack]";
- }
- } else {
-@@ -381,9 +407,16 @@ static int show_smap(struct seq_file *m,
- };
-
- memset(&mss, 0, sizeof mss);
-- mss.vma = vma;
-- if (vma->vm_mm && !is_vm_hugetlb_page(vma))
-- walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
-+
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ if (!PAX_RAND_FLAGS(vma->vm_mm)) {
-+#endif
-+ mss.vma = vma;
-+ if (vma->vm_mm && !is_vm_hugetlb_page(vma))
-+ walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ }
-+#endif
-
- show_map_vma(m, vma);
-
-@@ -397,7 +430,11 @@ static int show_smap(struct seq_file *m,
- "Private_Dirty: %8lu kB\n"
- "Referenced: %8lu kB\n"
- "Swap: %8lu kB\n",
-+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
-+ PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
-+#else
- (vma->vm_end - vma->vm_start) >> 10,
-+#endif
- mss.resident >> 10,
- (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
- mss.shared_clean >> 10,
-diff -urNp linux-2.6.28.7/fs/readdir.c linux-2.6.28.7/fs/readdir.c
---- linux-2.6.28.7/fs/readdir.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/readdir.c 2009-02-21 09:37:49.000000000 -0500
-@@ -16,6 +16,7 @@
- #include <linux/security.h>
- #include <linux/syscalls.h>
- #include <linux/unistd.h>
-+#include <linux/namei.h>
-
- #include <asm/uaccess.h>
-
-@@ -67,6 +68,7 @@ struct old_linux_dirent {
-
- struct readdir_callback {
- struct old_linux_dirent __user * dirent;
-+ struct file * file;
- int result;
- };
-
-@@ -84,6 +86,10 @@ static int fillonedir(void * __buf, cons
- buf->result = -EOVERFLOW;
- return -EOVERFLOW;
- }
-+
-+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
-+ return 0;
-+
- buf->result++;
- dirent = buf->dirent;
- if (!access_ok(VERIFY_WRITE, dirent,
-@@ -116,6 +122,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned in
-
- buf.result = 0;
- buf.dirent = dirent;
-+ buf.file = file;
-
- error = vfs_readdir(file, fillonedir, &buf);
- if (buf.result)
-@@ -142,6 +149,7 @@ struct linux_dirent {
- struct getdents_callback {
- struct linux_dirent __user * current_dir;
- struct linux_dirent __user * previous;
-+ struct file * file;
- int count;
- int error;
- };
-@@ -162,6 +170,10 @@ static int filldir(void * __buf, const c
- buf->error = -EOVERFLOW;
- return -EOVERFLOW;
- }
-+
-+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
-+ return 0;
-+
- dirent = buf->previous;
- if (dirent) {
- if (__put_user(offset, &dirent->d_off))
-@@ -209,6 +221,7 @@ SYSCALL_DEFINE3(getdents, unsigned int,
- buf.previous = NULL;
- buf.count = count;
- buf.error = 0;
-+ buf.file = file;
-
- error = vfs_readdir(file, filldir, &buf);
- if (error >= 0)
-@@ -228,6 +241,7 @@ out:
- struct getdents_callback64 {
- struct linux_dirent64 __user * current_dir;
- struct linux_dirent64 __user * previous;
-+ struct file *file;
- int count;
- int error;
- };
-@@ -242,6 +256,10 @@ static int filldir64(void * __buf, const
- buf->error = -EINVAL; /* only used if we fail.. */
- if (reclen > buf->count)
- return -EINVAL;
-+
-+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
-+ return 0;
-+
- dirent = buf->previous;
- if (dirent) {
- if (__put_user(offset, &dirent->d_off))
-@@ -289,6 +307,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int
-
- buf.current_dir = dirent;
- buf.previous = NULL;
-+ buf.file = file;
- buf.count = count;
- buf.error = 0;
-
-diff -urNp linux-2.6.28.7/fs/select.c linux-2.6.28.7/fs/select.c
---- linux-2.6.28.7/fs/select.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/select.c 2009-02-21 09:37:49.000000000 -0500
-@@ -19,6 +19,7 @@
- #include <linux/module.h>
- #include <linux/slab.h>
- #include <linux/poll.h>
-+#include <linux/security.h>
- #include <linux/personality.h> /* for STICKY_TIMEOUTS */
- #include <linux/file.h>
- #include <linux/fdtable.h>
-@@ -733,6 +734,7 @@ int do_sys_poll(struct pollfd __user *uf
- struct poll_list *walk = head;
- unsigned long todo = nfds;
-
-+ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
- if (nfds > current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
- return -EINVAL;
-
-diff -urNp linux-2.6.28.7/fs/smbfs/symlink.c linux-2.6.28.7/fs/smbfs/symlink.c
---- linux-2.6.28.7/fs/smbfs/symlink.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/smbfs/symlink.c 2009-02-21 09:37:49.000000000 -0500
-@@ -55,7 +55,7 @@ static void *smb_follow_link(struct dent
-
- static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
- {
-- char *s = nd_get_link(nd);
-+ const char *s = nd_get_link(nd);
- if (!IS_ERR(s))
- __putname(s);
- }
-diff -urNp linux-2.6.28.7/fs/sysfs/symlink.c linux-2.6.28.7/fs/sysfs/symlink.c
---- linux-2.6.28.7/fs/sysfs/symlink.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/sysfs/symlink.c 2009-02-21 09:37:49.000000000 -0500
-@@ -200,7 +200,7 @@ static void *sysfs_follow_link(struct de
-
- static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
- {
-- char *page = nd_get_link(nd);
-+ const char *page = nd_get_link(nd);
- if (!IS_ERR(page))
- free_page((unsigned long)page);
- }
-diff -urNp linux-2.6.28.7/fs/udf/balloc.c linux-2.6.28.7/fs/udf/balloc.c
---- linux-2.6.28.7/fs/udf/balloc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/udf/balloc.c 2009-02-21 09:37:49.000000000 -0500
-@@ -169,9 +169,7 @@ static void udf_bitmap_free_blocks(struc
- unsigned long overflow;
-
- mutex_lock(&sbi->s_alloc_mutex);
-- if (bloc.logicalBlockNum < 0 ||
-- (bloc.logicalBlockNum + count) >
-- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
-+ if (bloc.logicalBlockNum + count > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
- udf_debug("%d < %d || %d + %d > %d\n",
- bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
- sbi->s_partmaps[bloc.partitionReferenceNum].
-@@ -239,7 +237,7 @@ static int udf_bitmap_prealloc_blocks(st
-
- mutex_lock(&sbi->s_alloc_mutex);
- part_len = sbi->s_partmaps[partition].s_partition_len;
-- if (first_block < 0 || first_block >= part_len)
-+ if (first_block >= part_len)
- goto out;
-
- if (first_block + block_count > part_len)
-@@ -300,7 +298,7 @@ static int udf_bitmap_new_block(struct s
- mutex_lock(&sbi->s_alloc_mutex);
-
- repeat:
-- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
-+ if (goal >= sbi->s_partmaps[partition].s_partition_len)
- goal = 0;
-
- nr_groups = bitmap->s_nr_groups;
-@@ -438,9 +436,7 @@ static void udf_table_free_blocks(struct
- struct udf_inode_info *iinfo;
-
- mutex_lock(&sbi->s_alloc_mutex);
-- if (bloc.logicalBlockNum < 0 ||
-- (bloc.logicalBlockNum + count) >
-- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
-+ if (bloc.logicalBlockNum + count > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
- udf_debug("%d < %d || %d + %d > %d\n",
- bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
- sbi->s_partmaps[bloc.partitionReferenceNum].
-@@ -671,8 +667,7 @@ static int udf_table_prealloc_blocks(str
- int8_t etype = -1;
- struct udf_inode_info *iinfo;
-
-- if (first_block < 0 ||
-- first_block >= sbi->s_partmaps[partition].s_partition_len)
-+ if (first_block >= sbi->s_partmaps[partition].s_partition_len)
- return 0;
-
- iinfo = UDF_I(table);
-@@ -750,7 +745,7 @@ static int udf_table_new_block(struct su
- return newblock;
-
- mutex_lock(&sbi->s_alloc_mutex);
-- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
-+ if (goal >= sbi->s_partmaps[partition].s_partition_len)
- goal = 0;
-
- /* We search for the closest matching block to goal. If we find
-diff -urNp linux-2.6.28.7/fs/ufs/inode.c linux-2.6.28.7/fs/ufs/inode.c
---- linux-2.6.28.7/fs/ufs/inode.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/ufs/inode.c 2009-02-21 09:37:49.000000000 -0500
-@@ -56,9 +56,7 @@ static int ufs_block_to_path(struct inod
-
-
- UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks);
-- if (i_block < 0) {
-- ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0");
-- } else if (i_block < direct_blocks) {
-+ if (i_block < direct_blocks) {
- offsets[n++] = i_block;
- } else if ((i_block -= direct_blocks) < indirect_blocks) {
- offsets[n++] = UFS_IND_BLOCK;
-@@ -440,8 +438,6 @@ int ufs_getfrag_block(struct inode *inod
- lock_kernel();
-
- UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
-- if (fragment < 0)
-- goto abort_negative;
- if (fragment >
- ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb)
- << uspi->s_fpbshift))
-@@ -504,10 +500,6 @@ abort:
- unlock_kernel();
- return err;
-
--abort_negative:
-- ufs_warning(sb, "ufs_get_block", "block < 0");
-- goto abort;
--
- abort_too_big:
- ufs_warning(sb, "ufs_get_block", "block > big");
- goto abort;
-diff -urNp linux-2.6.28.7/fs/utimes.c linux-2.6.28.7/fs/utimes.c
---- linux-2.6.28.7/fs/utimes.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/utimes.c 2009-02-21 09:37:49.000000000 -0500
-@@ -1,6 +1,7 @@
- #include <linux/compiler.h>
- #include <linux/file.h>
- #include <linux/fs.h>
-+#include <linux/security.h>
- #include <linux/linkage.h>
- #include <linux/mount.h>
- #include <linux/namei.h>
-@@ -101,6 +102,12 @@ static int utimes_common(struct path *pa
- goto mnt_drop_write_and_out;
- }
- }
-+
-+ if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
-+ error = -EACCES;
-+ goto mnt_drop_write_and_out;
-+ }
-+
- mutex_lock(&inode->i_mutex);
- error = notify_change(path->dentry, &newattrs);
- mutex_unlock(&inode->i_mutex);
-diff -urNp linux-2.6.28.7/fs/xfs/linux-2.6/xfs_iops.c linux-2.6.28.7/fs/xfs/linux-2.6/xfs_iops.c
---- linux-2.6.28.7/fs/xfs/linux-2.6/xfs_iops.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/xfs/linux-2.6/xfs_iops.c 2009-02-21 09:37:49.000000000 -0500
-@@ -500,7 +500,7 @@ xfs_vn_put_link(
- struct nameidata *nd,
- void *p)
- {
-- char *s = nd_get_link(nd);
-+ const char *s = nd_get_link(nd);
-
- if (!IS_ERR(s))
- kfree(s);
-diff -urNp linux-2.6.28.7/fs/xfs/xfs_bmap.c linux-2.6.28.7/fs/xfs/xfs_bmap.c
---- linux-2.6.28.7/fs/xfs/xfs_bmap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/fs/xfs/xfs_bmap.c 2009-02-21 09:37:49.000000000 -0500
-@@ -360,7 +360,7 @@ xfs_bmap_validate_ret(
- int nmap,
- int ret_nmap);
- #else
--#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
-+#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do {} while (0)
- #endif /* DEBUG */
-
- #if defined(XFS_RW_TRACE)
-diff -urNp linux-2.6.28.7/grsecurity/gracl_alloc.c linux-2.6.28.7/grsecurity/gracl_alloc.c
---- linux-2.6.28.7/grsecurity/gracl_alloc.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_alloc.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,91 @@
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <linux/slab.h>
-+#include <linux/vmalloc.h>
-+#include <linux/gracl.h>
-+#include <linux/grsecurity.h>
-+
-+static unsigned long alloc_stack_next = 1;
-+static unsigned long alloc_stack_size = 1;
-+static void **alloc_stack;
-+
-+static __inline__ int
-+alloc_pop(void)
-+{
-+ if (alloc_stack_next == 1)
-+ return 0;
-+
-+ kfree(alloc_stack[alloc_stack_next - 2]);
-+
-+ alloc_stack_next--;
-+
-+ return 1;
-+}
-+
-+static __inline__ void
-+alloc_push(void *buf)
-+{
-+ if (alloc_stack_next >= alloc_stack_size)
-+ BUG();
-+
-+ alloc_stack[alloc_stack_next - 1] = buf;
-+
-+ alloc_stack_next++;
-+
-+ return;
-+}
-+
-+void *
-+acl_alloc(unsigned long len)
-+{
-+ void *ret;
-+
-+ if (len > PAGE_SIZE)
-+ BUG();
-+
-+ ret = kmalloc(len, GFP_KERNEL);
-+
-+ if (ret)
-+ alloc_push(ret);
-+
-+ return ret;
-+}
-+
-+void
-+acl_free_all(void)
-+{
-+ if (gr_acl_is_enabled() || !alloc_stack)
-+ return;
-+
-+ while (alloc_pop()) ;
-+
-+ if (alloc_stack) {
-+ if ((alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
-+ kfree(alloc_stack);
-+ else
-+ vfree(alloc_stack);
-+ }
-+
-+ alloc_stack = NULL;
-+ alloc_stack_size = 1;
-+ alloc_stack_next = 1;
-+
-+ return;
-+}
-+
-+int
-+acl_alloc_stack_init(unsigned long size)
-+{
-+ if ((size * sizeof (void *)) <= PAGE_SIZE)
-+ alloc_stack =
-+ (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
-+ else
-+ alloc_stack = (void **) vmalloc(size * sizeof (void *));
-+
-+ alloc_stack_size = size;
-+
-+ if (!alloc_stack)
-+ return 0;
-+ else
-+ return 1;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/gracl.c linux-2.6.28.7/grsecurity/gracl.c
---- linux-2.6.28.7/grsecurity/gracl.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,3722 @@
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/sched.h>
-+#include <linux/mm.h>
-+#include <linux/file.h>
-+#include <linux/fs.h>
-+#include <linux/namei.h>
-+#include <linux/mount.h>
-+#include <linux/tty.h>
-+#include <linux/proc_fs.h>
-+#include <linux/smp_lock.h>
-+#include <linux/slab.h>
-+#include <linux/vmalloc.h>
-+#include <linux/types.h>
-+#include <linux/sysctl.h>
-+#include <linux/netdevice.h>
-+#include <linux/ptrace.h>
-+#include <linux/gracl.h>
-+#include <linux/gralloc.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+#include <linux/pid_namespace.h>
-+#include <linux/fdtable.h>
-+#include <linux/percpu.h>
-+
-+#include <asm/uaccess.h>
-+#include <asm/errno.h>
-+#include <asm/mman.h>
-+
-+static struct acl_role_db acl_role_set;
-+static struct name_db name_set;
-+static struct inodev_db inodev_set;
-+
-+/* for keeping track of userspace pointers used for subjects, so we
-+ can share references in the kernel as well
-+*/
-+
-+static struct dentry *real_root;
-+static struct vfsmount *real_root_mnt;
-+
-+static struct acl_subj_map_db subj_map_set;
-+
-+static struct acl_role_label *default_role;
-+
-+static u16 acl_sp_role_value;
-+
-+extern char *gr_shared_page[4];
-+static DECLARE_MUTEX(gr_dev_sem);
-+DEFINE_RWLOCK(gr_inode_lock);
-+
-+struct gr_arg *gr_usermode;
-+
-+static unsigned int gr_status = GR_STATUS_INIT;
-+
-+extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
-+extern void gr_clear_learn_entries(void);
-+
-+#ifdef CONFIG_GRKERNSEC_RESLOG
-+extern void gr_log_resource(const struct task_struct *task,
-+ const int res, const unsigned long wanted, const int gt);
-+#endif
-+
-+unsigned char *gr_system_salt;
-+unsigned char *gr_system_sum;
-+
-+static struct sprole_pw **acl_special_roles = NULL;
-+static __u16 num_sprole_pws = 0;
-+
-+static struct acl_role_label *kernel_role = NULL;
-+
-+static unsigned int gr_auth_attempts = 0;
-+static unsigned long gr_auth_expires = 0UL;
-+
-+extern struct vfsmount *sock_mnt;
-+extern struct vfsmount *pipe_mnt;
-+extern struct vfsmount *shm_mnt;
-+static struct acl_object_label *fakefs_obj;
-+
-+extern int gr_init_uidset(void);
-+extern void gr_free_uidset(void);
-+extern void gr_remove_uid(uid_t uid);
-+extern int gr_find_uid(uid_t uid);
-+
-+__inline__ int
-+gr_acl_is_enabled(void)
-+{
-+ return (gr_status & GR_READY);
-+}
-+
-+char gr_roletype_to_char(void)
-+{
-+ switch (current->role->roletype &
-+ (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
-+ GR_ROLE_SPECIAL)) {
-+ case GR_ROLE_DEFAULT:
-+ return 'D';
-+ case GR_ROLE_USER:
-+ return 'U';
-+ case GR_ROLE_GROUP:
-+ return 'G';
-+ case GR_ROLE_SPECIAL:
-+ return 'S';
-+ }
-+
-+ return 'X';
-+}
-+
-+__inline__ int
-+gr_acl_tpe_check(void)
-+{
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+ if (current->role->roletype & GR_ROLE_TPE)
-+ return 1;
-+ else
-+ return 0;
-+}
-+
-+int
-+gr_handle_rawio(const struct inode *inode)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
-+ if (inode && S_ISBLK(inode->i_mode) &&
-+ grsec_enable_chroot_caps && proc_is_chrooted(current) &&
-+ !capable(CAP_SYS_RAWIO))
-+ return 1;
-+#endif
-+ return 0;
-+}
-+
-+static int
-+gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
-+{
-+ int i;
-+ unsigned long *l1;
-+ unsigned long *l2;
-+ unsigned char *c1;
-+ unsigned char *c2;
-+ int num_longs;
-+
-+ if (likely(lena != lenb))
-+ return 0;
-+
-+ l1 = (unsigned long *)a;
-+ l2 = (unsigned long *)b;
-+
-+ num_longs = lena / sizeof(unsigned long);
-+
-+ for (i = num_longs; i--; l1++, l2++) {
-+ if (unlikely(*l1 != *l2))
-+ return 0;
-+ }
-+
-+ c1 = (unsigned char *) l1;
-+ c2 = (unsigned char *) l2;
-+
-+ i = lena - (num_longs * sizeof(unsigned long));
-+
-+ for (; i--; c1++, c2++) {
-+ if (unlikely(*c1 != *c2))
-+ return 0;
-+ }
-+
-+ return 1;
-+}
-+
-+static char * __our_d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
-+ struct dentry *root, struct vfsmount *rootmnt,
-+ char *buffer, int buflen)
-+{
-+ char * end = buffer+buflen;
-+ char * retval;
-+ int namelen;
-+
-+ *--end = '\0';
-+ buflen--;
-+
-+ if (buflen < 1)
-+ goto Elong;
-+ /* Get '/' right */
-+ retval = end-1;
-+ *retval = '/';
-+
-+ for (;;) {
-+ struct dentry * parent;
-+
-+ if (dentry == root && vfsmnt == rootmnt)
-+ break;
-+ if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
-+ /* Global root? */
-+ spin_lock(&vfsmount_lock);
-+ if (vfsmnt->mnt_parent == vfsmnt) {
-+ spin_unlock(&vfsmount_lock);
-+ goto global_root;
-+ }
-+ dentry = vfsmnt->mnt_mountpoint;
-+ vfsmnt = vfsmnt->mnt_parent;
-+ spin_unlock(&vfsmount_lock);
-+ continue;
-+ }
-+ parent = dentry->d_parent;
-+ prefetch(parent);
-+ namelen = dentry->d_name.len;
-+ buflen -= namelen + 1;
-+ if (buflen < 0)
-+ goto Elong;
-+ end -= namelen;
-+ memcpy(end, dentry->d_name.name, namelen);
-+ *--end = '/';
-+ retval = end;
-+ dentry = parent;
-+ }
-+
-+ return retval;
-+
-+global_root:
-+ namelen = dentry->d_name.len;
-+ buflen -= namelen;
-+ if (buflen < 0)
-+ goto Elong;
-+ retval -= namelen-1; /* hit the slash */
-+ memcpy(retval, dentry->d_name.name, namelen);
-+ return retval;
-+Elong:
-+ return ERR_PTR(-ENAMETOOLONG);
-+}
-+
-+static char *
-+gen_full_path(struct dentry *dentry, struct vfsmount *vfsmnt,
-+ struct dentry *root, struct vfsmount *rootmnt, char *buf, int buflen)
-+{
-+ char *retval;
-+
-+ retval = __our_d_path(dentry, vfsmnt, root, rootmnt, buf, buflen);
-+ if (unlikely(IS_ERR(retval)))
-+ retval = strcpy(buf, "<path too long>");
-+ else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
-+ retval[1] = '\0';
-+
-+ return retval;
-+}
-+
-+static char *
-+__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
-+ char *buf, int buflen)
-+{
-+ char *res;
-+
-+ /* we can use real_root, real_root_mnt, because this is only called
-+ by the RBAC system */
-+ res = gen_full_path((struct dentry *)dentry, (struct vfsmount *)vfsmnt, real_root, real_root_mnt, buf, buflen);
-+
-+ return res;
-+}
-+
-+static char *
-+d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
-+ char *buf, int buflen)
-+{
-+ char *res;
-+ struct dentry *root;
-+ struct vfsmount *rootmnt;
-+ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper;
-+
-+ /* we can't use real_root, real_root_mnt, because they belong only to the RBAC system */
-+ read_lock(&reaper->fs->lock);
-+ root = dget(reaper->fs->root.dentry);
-+ rootmnt = mntget(reaper->fs->root.mnt);
-+ read_unlock(&reaper->fs->lock);
-+
-+ spin_lock(&dcache_lock);
-+ res = gen_full_path((struct dentry *)dentry, (struct vfsmount *)vfsmnt, root, rootmnt, buf, buflen);
-+ spin_unlock(&dcache_lock);
-+
-+ dput(root);
-+ mntput(rootmnt);
-+ return res;
-+}
-+
-+static char *
-+gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ char *ret;
-+ spin_lock(&dcache_lock);
-+ ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
-+ PAGE_SIZE);
-+ spin_unlock(&dcache_lock);
-+ return ret;
-+}
-+
-+char *
-+gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
-+ PAGE_SIZE);
-+}
-+
-+char *
-+gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
-+ PAGE_SIZE);
-+}
-+
-+char *
-+gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
-+ PAGE_SIZE);
-+}
-+
-+char *
-+gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
-+ PAGE_SIZE);
-+}
-+
-+char *
-+gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
-+ PAGE_SIZE);
-+}
-+
-+__inline__ __u32
-+to_gr_audit(const __u32 reqmode)
-+{
-+ /* masks off auditable permission flags, then shifts them to create
-+ auditing flags, and adds the special case of append auditing if
-+ we're requesting write */
-+ return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
-+}
-+
-+struct acl_subject_label *
-+lookup_subject_map(const struct acl_subject_label *userp)
-+{
-+ unsigned int index = shash(userp, subj_map_set.s_size);
-+ struct subject_map *match;
-+
-+ match = subj_map_set.s_hash[index];
-+
-+ while (match && match->user != userp)
-+ match = match->next;
-+
-+ if (match != NULL)
-+ return match->kernel;
-+ else
-+ return NULL;
-+}
-+
-+static void
-+insert_subj_map_entry(struct subject_map *subjmap)
-+{
-+ unsigned int index = shash(subjmap->user, subj_map_set.s_size);
-+ struct subject_map **curr;
-+
-+ subjmap->prev = NULL;
-+
-+ curr = &subj_map_set.s_hash[index];
-+ if (*curr != NULL)
-+ (*curr)->prev = subjmap;
-+
-+ subjmap->next = *curr;
-+ *curr = subjmap;
-+
-+ return;
-+}
-+
-+static struct acl_role_label *
-+lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
-+ const gid_t gid)
-+{
-+ unsigned int index = rhash(uid, GR_ROLE_USER, acl_role_set.r_size);
-+ struct acl_role_label *match;
-+ struct role_allowed_ip *ipp;
-+ unsigned int x;
-+
-+ match = acl_role_set.r_hash[index];
-+
-+ while (match) {
-+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
-+ for (x = 0; x < match->domain_child_num; x++) {
-+ if (match->domain_children[x] == uid)
-+ goto found;
-+ }
-+ } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
-+ break;
-+ match = match->next;
-+ }
-+found:
-+ if (match == NULL) {
-+ try_group:
-+ index = rhash(gid, GR_ROLE_GROUP, acl_role_set.r_size);
-+ match = acl_role_set.r_hash[index];
-+
-+ while (match) {
-+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
-+ for (x = 0; x < match->domain_child_num; x++) {
-+ if (match->domain_children[x] == gid)
-+ goto found2;
-+ }
-+ } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
-+ break;
-+ match = match->next;
-+ }
-+found2:
-+ if (match == NULL)
-+ match = default_role;
-+ if (match->allowed_ips == NULL)
-+ return match;
-+ else {
-+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
-+ if (likely
-+ ((ntohl(task->signal->curr_ip) & ipp->netmask) ==
-+ (ntohl(ipp->addr) & ipp->netmask)))
-+ return match;
-+ }
-+ match = default_role;
-+ }
-+ } else if (match->allowed_ips == NULL) {
-+ return match;
-+ } else {
-+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
-+ if (likely
-+ ((ntohl(task->signal->curr_ip) & ipp->netmask) ==
-+ (ntohl(ipp->addr) & ipp->netmask)))
-+ return match;
-+ }
-+ goto try_group;
-+ }
-+
-+ return match;
-+}
-+
-+struct acl_subject_label *
-+lookup_acl_subj_label(const ino_t ino, const dev_t dev,
-+ const struct acl_role_label *role)
-+{
-+ unsigned int index = fhash(ino, dev, role->subj_hash_size);
-+ struct acl_subject_label *match;
-+
-+ match = role->subj_hash[index];
-+
-+ while (match && (match->inode != ino || match->device != dev ||
-+ (match->mode & GR_DELETED))) {
-+ match = match->next;
-+ }
-+
-+ if (match && !(match->mode & GR_DELETED))
-+ return match;
-+ else
-+ return NULL;
-+}
-+
-+static struct acl_object_label *
-+lookup_acl_obj_label(const ino_t ino, const dev_t dev,
-+ const struct acl_subject_label *subj)
-+{
-+ unsigned int index = fhash(ino, dev, subj->obj_hash_size);
-+ struct acl_object_label *match;
-+
-+ match = subj->obj_hash[index];
-+
-+ while (match && (match->inode != ino || match->device != dev ||
-+ (match->mode & GR_DELETED))) {
-+ match = match->next;
-+ }
-+
-+ if (match && !(match->mode & GR_DELETED))
-+ return match;
-+ else
-+ return NULL;
-+}
-+
-+static struct acl_object_label *
-+lookup_acl_obj_label_create(const ino_t ino, const dev_t dev,
-+ const struct acl_subject_label *subj)
-+{
-+ unsigned int index = fhash(ino, dev, subj->obj_hash_size);
-+ struct acl_object_label *match;
-+
-+ match = subj->obj_hash[index];
-+
-+ while (match && (match->inode != ino || match->device != dev ||
-+ !(match->mode & GR_DELETED))) {
-+ match = match->next;
-+ }
-+
-+ if (match && (match->mode & GR_DELETED))
-+ return match;
-+
-+ match = subj->obj_hash[index];
-+
-+ while (match && (match->inode != ino || match->device != dev ||
-+ (match->mode & GR_DELETED))) {
-+ match = match->next;
-+ }
-+
-+ if (match && !(match->mode & GR_DELETED))
-+ return match;
-+ else
-+ return NULL;
-+}
-+
-+static struct name_entry *
-+lookup_name_entry(const char *name)
-+{
-+ unsigned int len = strlen(name);
-+ unsigned int key = full_name_hash(name, len);
-+ unsigned int index = key % name_set.n_size;
-+ struct name_entry *match;
-+
-+ match = name_set.n_hash[index];
-+
-+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
-+ match = match->next;
-+
-+ return match;
-+}
-+
-+static struct name_entry *
-+lookup_name_entry_create(const char *name)
-+{
-+ unsigned int len = strlen(name);
-+ unsigned int key = full_name_hash(name, len);
-+ unsigned int index = key % name_set.n_size;
-+ struct name_entry *match;
-+
-+ match = name_set.n_hash[index];
-+
-+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
-+ !match->deleted))
-+ match = match->next;
-+
-+ if (match && match->deleted)
-+ return match;
-+
-+ match = name_set.n_hash[index];
-+
-+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
-+ match->deleted))
-+ match = match->next;
-+
-+ if (match && !match->deleted)
-+ return match;
-+ else
-+ return NULL;
-+}
-+
-+static struct inodev_entry *
-+lookup_inodev_entry(const ino_t ino, const dev_t dev)
-+{
-+ unsigned int index = fhash(ino, dev, inodev_set.i_size);
-+ struct inodev_entry *match;
-+
-+ match = inodev_set.i_hash[index];
-+
-+ while (match && (match->nentry->inode != ino || match->nentry->device != dev))
-+ match = match->next;
-+
-+ return match;
-+}
-+
-+static void
-+insert_inodev_entry(struct inodev_entry *entry)
-+{
-+ unsigned int index = fhash(entry->nentry->inode, entry->nentry->device,
-+ inodev_set.i_size);
-+ struct inodev_entry **curr;
-+
-+ entry->prev = NULL;
-+
-+ curr = &inodev_set.i_hash[index];
-+ if (*curr != NULL)
-+ (*curr)->prev = entry;
-+
-+ entry->next = *curr;
-+ *curr = entry;
-+
-+ return;
-+}
-+
-+static void
-+__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
-+{
-+ unsigned int index =
-+ rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), acl_role_set.r_size);
-+ struct acl_role_label **curr;
-+
-+ role->prev = NULL;
-+
-+ curr = &acl_role_set.r_hash[index];
-+ if (*curr != NULL)
-+ (*curr)->prev = role;
-+
-+ role->next = *curr;
-+ *curr = role;
-+
-+ return;
-+}
-+
-+static void
-+insert_acl_role_label(struct acl_role_label *role)
-+{
-+ int i;
-+
-+ if (role->roletype & GR_ROLE_DOMAIN) {
-+ for (i = 0; i < role->domain_child_num; i++)
-+ __insert_acl_role_label(role, role->domain_children[i]);
-+ } else
-+ __insert_acl_role_label(role, role->uidgid);
-+}
-+
-+static int
-+insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted)
-+{
-+ struct name_entry **curr, *nentry;
-+ struct inodev_entry *ientry;
-+ unsigned int len = strlen(name);
-+ unsigned int key = full_name_hash(name, len);
-+ unsigned int index = key % name_set.n_size;
-+
-+ curr = &name_set.n_hash[index];
-+
-+ while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
-+ curr = &((*curr)->next);
-+
-+ if (*curr != NULL)
-+ return 1;
-+
-+ nentry = acl_alloc(sizeof (struct name_entry));
-+ if (nentry == NULL)
-+ return 0;
-+ ientry = acl_alloc(sizeof (struct inodev_entry));
-+ if (ientry == NULL)
-+ return 0;
-+ ientry->nentry = nentry;
-+
-+ nentry->key = key;
-+ nentry->name = name;
-+ nentry->inode = inode;
-+ nentry->device = device;
-+ nentry->len = len;
-+ nentry->deleted = deleted;
-+
-+ nentry->prev = NULL;
-+ curr = &name_set.n_hash[index];
-+ if (*curr != NULL)
-+ (*curr)->prev = nentry;
-+ nentry->next = *curr;
-+ *curr = nentry;
-+
-+ /* insert us into the table searchable by inode/dev */
-+ insert_inodev_entry(ientry);
-+
-+ return 1;
-+}
-+
-+static void
-+insert_acl_obj_label(struct acl_object_label *obj,
-+ struct acl_subject_label *subj)
-+{
-+ unsigned int index =
-+ fhash(obj->inode, obj->device, subj->obj_hash_size);
-+ struct acl_object_label **curr;
-+
-+
-+ obj->prev = NULL;
-+
-+ curr = &subj->obj_hash[index];
-+ if (*curr != NULL)
-+ (*curr)->prev = obj;
-+
-+ obj->next = *curr;
-+ *curr = obj;
-+
-+ return;
-+}
-+
-+static void
-+insert_acl_subj_label(struct acl_subject_label *obj,
-+ struct acl_role_label *role)
-+{
-+ unsigned int index = fhash(obj->inode, obj->device, role->subj_hash_size);
-+ struct acl_subject_label **curr;
-+
-+ obj->prev = NULL;
-+
-+ curr = &role->subj_hash[index];
-+ if (*curr != NULL)
-+ (*curr)->prev = obj;
-+
-+ obj->next = *curr;
-+ *curr = obj;
-+
-+ return;
-+}
-+
-+/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
-+
-+static void *
-+create_table(__u32 * len, int elementsize)
-+{
-+ unsigned int table_sizes[] = {
-+ 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
-+ 32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
-+ 4194301, 8388593, 16777213, 33554393, 67108859, 134217689,
-+ 268435399, 536870909, 1073741789, 2147483647
-+ };
-+ void *newtable = NULL;
-+ unsigned int pwr = 0;
-+
-+ while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
-+ table_sizes[pwr] <= *len)
-+ pwr++;
-+
-+ if (table_sizes[pwr] <= *len)
-+ return newtable;
-+
-+ if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
-+ newtable =
-+ kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
-+ else
-+ newtable = vmalloc(table_sizes[pwr] * elementsize);
-+
-+ *len = table_sizes[pwr];
-+
-+ return newtable;
-+}
-+
-+static int
-+init_variables(const struct gr_arg *arg)
-+{
-+ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper;
-+ unsigned int stacksize;
-+
-+ subj_map_set.s_size = arg->role_db.num_subjects;
-+ acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
-+ name_set.n_size = arg->role_db.num_objects;
-+ inodev_set.i_size = arg->role_db.num_objects;
-+
-+ if (!subj_map_set.s_size || !acl_role_set.r_size ||
-+ !name_set.n_size || !inodev_set.i_size)
-+ return 1;
-+
-+ if (!gr_init_uidset())
-+ return 1;
-+
-+ /* set up the stack that holds allocation info */
-+
-+ stacksize = arg->role_db.num_pointers + 5;
-+
-+ if (!acl_alloc_stack_init(stacksize))
-+ return 1;
-+
-+ /* grab reference for the real root dentry and vfsmount */
-+ read_lock(&reaper->fs->lock);
-+ real_root_mnt = mntget(reaper->fs->root.mnt);
-+ real_root = dget(reaper->fs->root.dentry);
-+ read_unlock(&reaper->fs->lock);
-+
-+ fakefs_obj = acl_alloc(sizeof(struct acl_object_label));
-+ if (fakefs_obj == NULL)
-+ return 1;
-+ fakefs_obj->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
-+
-+ subj_map_set.s_hash =
-+ (struct subject_map **) create_table(&subj_map_set.s_size, sizeof(void *));
-+ acl_role_set.r_hash =
-+ (struct acl_role_label **) create_table(&acl_role_set.r_size, sizeof(void *));
-+ name_set.n_hash = (struct name_entry **) create_table(&name_set.n_size, sizeof(void *));
-+ inodev_set.i_hash =
-+ (struct inodev_entry **) create_table(&inodev_set.i_size, sizeof(void *));
-+
-+ if (!subj_map_set.s_hash || !acl_role_set.r_hash ||
-+ !name_set.n_hash || !inodev_set.i_hash)
-+ return 1;
-+
-+ memset(subj_map_set.s_hash, 0,
-+ sizeof(struct subject_map *) * subj_map_set.s_size);
-+ memset(acl_role_set.r_hash, 0,
-+ sizeof (struct acl_role_label *) * acl_role_set.r_size);
-+ memset(name_set.n_hash, 0,
-+ sizeof (struct name_entry *) * name_set.n_size);
-+ memset(inodev_set.i_hash, 0,
-+ sizeof (struct inodev_entry *) * inodev_set.i_size);
-+
-+ return 0;
-+}
-+
-+/* free information not needed after startup
-+ currently contains user->kernel pointer mappings for subjects
-+*/
-+
-+static void
-+free_init_variables(void)
-+{
-+ __u32 i;
-+
-+ if (subj_map_set.s_hash) {
-+ for (i = 0; i < subj_map_set.s_size; i++) {
-+ if (subj_map_set.s_hash[i]) {
-+ kfree(subj_map_set.s_hash[i]);
-+ subj_map_set.s_hash[i] = NULL;
-+ }
-+ }
-+
-+ if ((subj_map_set.s_size * sizeof (struct subject_map *)) <=
-+ PAGE_SIZE)
-+ kfree(subj_map_set.s_hash);
-+ else
-+ vfree(subj_map_set.s_hash);
-+ }
-+
-+ return;
-+}
-+
-+static void
-+free_variables(void)
-+{
-+ struct acl_subject_label *s;
-+ struct acl_role_label *r;
-+ struct task_struct *task, *task2;
-+ unsigned int i, x;
-+
-+ gr_clear_learn_entries();
-+
-+ read_lock(&tasklist_lock);
-+ do_each_thread(task2, task) {
-+ task->acl_sp_role = 0;
-+ task->acl_role_id = 0;
-+ task->acl = NULL;
-+ task->role = NULL;
-+ } while_each_thread(task2, task);
-+ read_unlock(&tasklist_lock);
-+
-+ /* release the reference to the real root dentry and vfsmount */
-+ if (real_root)
-+ dput(real_root);
-+ real_root = NULL;
-+ if (real_root_mnt)
-+ mntput(real_root_mnt);
-+ real_root_mnt = NULL;
-+
-+ /* free all object hash tables */
-+
-+ FOR_EACH_ROLE_START(r, i)
-+ if (r->subj_hash == NULL)
-+ break;
-+ FOR_EACH_SUBJECT_START(r, s, x)
-+ if (s->obj_hash == NULL)
-+ break;
-+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
-+ kfree(s->obj_hash);
-+ else
-+ vfree(s->obj_hash);
-+ FOR_EACH_SUBJECT_END(s, x)
-+ FOR_EACH_NESTED_SUBJECT_START(r, s)
-+ if (s->obj_hash == NULL)
-+ break;
-+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
-+ kfree(s->obj_hash);
-+ else
-+ vfree(s->obj_hash);
-+ FOR_EACH_NESTED_SUBJECT_END(s)
-+ if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
-+ kfree(r->subj_hash);
-+ else
-+ vfree(r->subj_hash);
-+ r->subj_hash = NULL;
-+ FOR_EACH_ROLE_END(r,i)
-+
-+ acl_free_all();
-+
-+ if (acl_role_set.r_hash) {
-+ if ((acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
-+ PAGE_SIZE)
-+ kfree(acl_role_set.r_hash);
-+ else
-+ vfree(acl_role_set.r_hash);
-+ }
-+ if (name_set.n_hash) {
-+ if ((name_set.n_size * sizeof (struct name_entry *)) <=
-+ PAGE_SIZE)
-+ kfree(name_set.n_hash);
-+ else
-+ vfree(name_set.n_hash);
-+ }
-+
-+ if (inodev_set.i_hash) {
-+ if ((inodev_set.i_size * sizeof (struct inodev_entry *)) <=
-+ PAGE_SIZE)
-+ kfree(inodev_set.i_hash);
-+ else
-+ vfree(inodev_set.i_hash);
-+ }
-+
-+ gr_free_uidset();
-+
-+ memset(&name_set, 0, sizeof (struct name_db));
-+ memset(&inodev_set, 0, sizeof (struct inodev_db));
-+ memset(&acl_role_set, 0, sizeof (struct acl_role_db));
-+ memset(&subj_map_set, 0, sizeof (struct acl_subj_map_db));
-+
-+ default_role = NULL;
-+
-+ return;
-+}
-+
-+static __u32
-+count_user_objs(struct acl_object_label *userp)
-+{
-+ struct acl_object_label o_tmp;
-+ __u32 num = 0;
-+
-+ while (userp) {
-+ if (copy_from_user(&o_tmp, userp,
-+ sizeof (struct acl_object_label)))
-+ break;
-+
-+ userp = o_tmp.prev;
-+ num++;
-+ }
-+
-+ return num;
-+}
-+
-+static struct acl_subject_label *
-+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role);
-+
-+static int
-+copy_user_glob(struct acl_object_label *obj)
-+{
-+ struct acl_object_label *g_tmp, **guser;
-+ unsigned int len;
-+ char *tmp;
-+
-+ if (obj->globbed == NULL)
-+ return 0;
-+
-+ guser = &obj->globbed;
-+ while (*guser) {
-+ g_tmp = (struct acl_object_label *)
-+ acl_alloc(sizeof (struct acl_object_label));
-+ if (g_tmp == NULL)
-+ return -ENOMEM;
-+
-+ if (copy_from_user(g_tmp, *guser,
-+ sizeof (struct acl_object_label)))
-+ return -EFAULT;
-+
-+ len = strnlen_user(g_tmp->filename, PATH_MAX);
-+
-+ if (!len || len >= PATH_MAX)
-+ return -EINVAL;
-+
-+ if ((tmp = (char *) acl_alloc(len)) == NULL)
-+ return -ENOMEM;
-+
-+ if (copy_from_user(tmp, g_tmp->filename, len))
-+ return -EFAULT;
-+
-+ g_tmp->filename = tmp;
-+
-+ *guser = g_tmp;
-+ guser = &(g_tmp->next);
-+ }
-+
-+ return 0;
-+}
-+
-+static int
-+copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
-+ struct acl_role_label *role)
-+{
-+ struct acl_object_label *o_tmp;
-+ unsigned int len;
-+ int ret;
-+ char *tmp;
-+
-+ while (userp) {
-+ if ((o_tmp = (struct acl_object_label *)
-+ acl_alloc(sizeof (struct acl_object_label))) == NULL)
-+ return -ENOMEM;
-+
-+ if (copy_from_user(o_tmp, userp,
-+ sizeof (struct acl_object_label)))
-+ return -EFAULT;
-+
-+ userp = o_tmp->prev;
-+
-+ len = strnlen_user(o_tmp->filename, PATH_MAX);
-+
-+ if (!len || len >= PATH_MAX)
-+ return -EINVAL;
-+
-+ if ((tmp = (char *) acl_alloc(len)) == NULL)
-+ return -ENOMEM;
-+
-+ if (copy_from_user(tmp, o_tmp->filename, len))
-+ return -EFAULT;
-+
-+ o_tmp->filename = tmp;
-+
-+ insert_acl_obj_label(o_tmp, subj);
-+ if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
-+ o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
-+ return -ENOMEM;
-+
-+ ret = copy_user_glob(o_tmp);
-+ if (ret)
-+ return ret;
-+
-+ if (o_tmp->nested) {
-+ o_tmp->nested = do_copy_user_subj(o_tmp->nested, role);
-+ if (IS_ERR(o_tmp->nested))
-+ return PTR_ERR(o_tmp->nested);
-+
-+ /* insert into nested subject list */
-+ o_tmp->nested->next = role->hash->first;
-+ role->hash->first = o_tmp->nested;
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+static __u32
-+count_user_subjs(struct acl_subject_label *userp)
-+{
-+ struct acl_subject_label s_tmp;
-+ __u32 num = 0;
-+
-+ while (userp) {
-+ if (copy_from_user(&s_tmp, userp,
-+ sizeof (struct acl_subject_label)))
-+ break;
-+
-+ userp = s_tmp.prev;
-+ /* do not count nested subjects against this count, since
-+ they are not included in the hash table, but are
-+ attached to objects. We have already counted
-+ the subjects in userspace for the allocation
-+ stack
-+ */
-+ if (!(s_tmp.mode & GR_NESTED))
-+ num++;
-+ }
-+
-+ return num;
-+}
-+
-+static int
-+copy_user_allowedips(struct acl_role_label *rolep)
-+{
-+ struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
-+
-+ ruserip = rolep->allowed_ips;
-+
-+ while (ruserip) {
-+ rlast = rtmp;
-+
-+ if ((rtmp = (struct role_allowed_ip *)
-+ acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
-+ return -ENOMEM;
-+
-+ if (copy_from_user(rtmp, ruserip,
-+ sizeof (struct role_allowed_ip)))
-+ return -EFAULT;
-+
-+ ruserip = rtmp->prev;
-+
-+ if (!rlast) {
-+ rtmp->prev = NULL;
-+ rolep->allowed_ips = rtmp;
-+ } else {
-+ rlast->next = rtmp;
-+ rtmp->prev = rlast;
-+ }
-+
-+ if (!ruserip)
-+ rtmp->next = NULL;
-+ }
-+
-+ return 0;
-+}
-+
-+static int
-+copy_user_transitions(struct acl_role_label *rolep)
-+{
-+ struct role_transition *rusertp, *rtmp = NULL, *rlast;
-+
-+ unsigned int len;
-+ char *tmp;
-+
-+ rusertp = rolep->transitions;
-+
-+ while (rusertp) {
-+ rlast = rtmp;
-+
-+ if ((rtmp = (struct role_transition *)
-+ acl_alloc(sizeof (struct role_transition))) == NULL)
-+ return -ENOMEM;
-+
-+ if (copy_from_user(rtmp, rusertp,
-+ sizeof (struct role_transition)))
-+ return -EFAULT;
-+
-+ rusertp = rtmp->prev;
-+
-+ len = strnlen_user(rtmp->rolename, GR_SPROLE_LEN);
-+
-+ if (!len || len >= GR_SPROLE_LEN)
-+ return -EINVAL;
-+
-+ if ((tmp = (char *) acl_alloc(len)) == NULL)
-+ return -ENOMEM;
-+
-+ if (copy_from_user(tmp, rtmp->rolename, len))
-+ return -EFAULT;
-+
-+ rtmp->rolename = tmp;
-+
-+ if (!rlast) {
-+ rtmp->prev = NULL;
-+ rolep->transitions = rtmp;
-+ } else {
-+ rlast->next = rtmp;
-+ rtmp->prev = rlast;
-+ }
-+
-+ if (!rusertp)
-+ rtmp->next = NULL;
-+ }
-+
-+ return 0;
-+}
-+
-+static struct acl_subject_label *
-+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role)
-+{
-+ struct acl_subject_label *s_tmp = NULL, *s_tmp2;
-+ unsigned int len;
-+ char *tmp;
-+ __u32 num_objs;
-+ struct acl_ip_label **i_tmp, *i_utmp2;
-+ struct gr_hash_struct ghash;
-+ struct subject_map *subjmap;
-+ unsigned int i_num;
-+ int err;
-+
-+ s_tmp = lookup_subject_map(userp);
-+
-+ /* we've already copied this subject into the kernel, just return
-+ the reference to it, and don't copy it over again
-+ */
-+ if (s_tmp)
-+ return(s_tmp);
-+
-+ if ((s_tmp = (struct acl_subject_label *)
-+ acl_alloc(sizeof (struct acl_subject_label))) == NULL)
-+ return ERR_PTR(-ENOMEM);
-+
-+ subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
-+ if (subjmap == NULL)
-+ return ERR_PTR(-ENOMEM);
-+
-+ subjmap->user = userp;
-+ subjmap->kernel = s_tmp;
-+ insert_subj_map_entry(subjmap);
-+
-+ if (copy_from_user(s_tmp, userp,
-+ sizeof (struct acl_subject_label)))
-+ return ERR_PTR(-EFAULT);
-+
-+ len = strnlen_user(s_tmp->filename, PATH_MAX);
-+
-+ if (!len || len >= PATH_MAX)
-+ return ERR_PTR(-EINVAL);
-+
-+ if ((tmp = (char *) acl_alloc(len)) == NULL)
-+ return ERR_PTR(-ENOMEM);
-+
-+ if (copy_from_user(tmp, s_tmp->filename, len))
-+ return ERR_PTR(-EFAULT);
-+
-+ s_tmp->filename = tmp;
-+
-+ if (!strcmp(s_tmp->filename, "/"))
-+ role->root_label = s_tmp;
-+
-+ if (copy_from_user(&ghash, s_tmp->hash, sizeof(struct gr_hash_struct)))
-+ return ERR_PTR(-EFAULT);
-+
-+ /* copy user and group transition tables */
-+
-+ if (s_tmp->user_trans_num) {
-+ uid_t *uidlist;
-+
-+ uidlist = (uid_t *)acl_alloc(s_tmp->user_trans_num * sizeof(uid_t));
-+ if (uidlist == NULL)
-+ return ERR_PTR(-ENOMEM);
-+ if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
-+ return ERR_PTR(-EFAULT);
-+
-+ s_tmp->user_transitions = uidlist;
-+ }
-+
-+ if (s_tmp->group_trans_num) {
-+ gid_t *gidlist;
-+
-+ gidlist = (gid_t *)acl_alloc(s_tmp->group_trans_num * sizeof(gid_t));
-+ if (gidlist == NULL)
-+ return ERR_PTR(-ENOMEM);
-+ if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
-+ return ERR_PTR(-EFAULT);
-+
-+ s_tmp->group_transitions = gidlist;
-+ }
-+
-+ /* set up object hash table */
-+ num_objs = count_user_objs(ghash.first);
-+
-+ s_tmp->obj_hash_size = num_objs;
-+ s_tmp->obj_hash =
-+ (struct acl_object_label **)
-+ create_table(&(s_tmp->obj_hash_size), sizeof(void *));
-+
-+ if (!s_tmp->obj_hash)
-+ return ERR_PTR(-ENOMEM);
-+
-+ memset(s_tmp->obj_hash, 0,
-+ s_tmp->obj_hash_size *
-+ sizeof (struct acl_object_label *));
-+
-+ /* add in objects */
-+ err = copy_user_objs(ghash.first, s_tmp, role);
-+
-+ if (err)
-+ return ERR_PTR(err);
-+
-+ /* set pointer for parent subject */
-+ if (s_tmp->parent_subject) {
-+ s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role);
-+
-+ if (IS_ERR(s_tmp2))
-+ return s_tmp2;
-+
-+ s_tmp->parent_subject = s_tmp2;
-+ }
-+
-+ /* add in ip acls */
-+
-+ if (!s_tmp->ip_num) {
-+ s_tmp->ips = NULL;
-+ goto insert;
-+ }
-+
-+ i_tmp =
-+ (struct acl_ip_label **) acl_alloc(s_tmp->ip_num *
-+ sizeof (struct
-+ acl_ip_label *));
-+
-+ if (!i_tmp)
-+ return ERR_PTR(-ENOMEM);
-+
-+ for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
-+ *(i_tmp + i_num) =
-+ (struct acl_ip_label *)
-+ acl_alloc(sizeof (struct acl_ip_label));
-+ if (!*(i_tmp + i_num))
-+ return ERR_PTR(-ENOMEM);
-+
-+ if (copy_from_user
-+ (&i_utmp2, s_tmp->ips + i_num,
-+ sizeof (struct acl_ip_label *)))
-+ return ERR_PTR(-EFAULT);
-+
-+ if (copy_from_user
-+ (*(i_tmp + i_num), i_utmp2,
-+ sizeof (struct acl_ip_label)))
-+ return ERR_PTR(-EFAULT);
-+
-+ if ((*(i_tmp + i_num))->iface == NULL)
-+ continue;
-+
-+ len = strnlen_user((*(i_tmp + i_num))->iface, IFNAMSIZ);
-+ if (!len || len >= IFNAMSIZ)
-+ return ERR_PTR(-EINVAL);
-+ tmp = acl_alloc(len);
-+ if (tmp == NULL)
-+ return ERR_PTR(-ENOMEM);
-+ if (copy_from_user(tmp, (*(i_tmp + i_num))->iface, len))
-+ return ERR_PTR(-EFAULT);
-+ (*(i_tmp + i_num))->iface = tmp;
-+ }
-+
-+ s_tmp->ips = i_tmp;
-+
-+insert:
-+ if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
-+ s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
-+ return ERR_PTR(-ENOMEM);
-+
-+ return s_tmp;
-+}
-+
-+static int
-+copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
-+{
-+ struct acl_subject_label s_pre;
-+ struct acl_subject_label * ret;
-+ int err;
-+
-+ while (userp) {
-+ if (copy_from_user(&s_pre, userp,
-+ sizeof (struct acl_subject_label)))
-+ return -EFAULT;
-+
-+ /* do not add nested subjects here, add
-+ while parsing objects
-+ */
-+
-+ if (s_pre.mode & GR_NESTED) {
-+ userp = s_pre.prev;
-+ continue;
-+ }
-+
-+ ret = do_copy_user_subj(userp, role);
-+
-+ err = PTR_ERR(ret);
-+ if (IS_ERR(ret))
-+ return err;
-+
-+ insert_acl_subj_label(ret, role);
-+
-+ userp = s_pre.prev;
-+ }
-+
-+ return 0;
-+}
-+
-+static int
-+copy_user_acl(struct gr_arg *arg)
-+{
-+ struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
-+ struct sprole_pw *sptmp;
-+ struct gr_hash_struct *ghash;
-+ uid_t *domainlist;
-+ unsigned int r_num;
-+ unsigned int len;
-+ char *tmp;
-+ int err = 0;
-+ __u16 i;
-+ __u32 num_subjs;
-+
-+ /* we need a default and kernel role */
-+ if (arg->role_db.num_roles < 2)
-+ return -EINVAL;
-+
-+ /* copy special role authentication info from userspace */
-+
-+ num_sprole_pws = arg->num_sprole_pws;
-+ acl_special_roles = (struct sprole_pw **) acl_alloc(num_sprole_pws * sizeof(struct sprole_pw *));
-+
-+ if (!acl_special_roles) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+
-+ for (i = 0; i < num_sprole_pws; i++) {
-+ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
-+ if (!sptmp) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+ if (copy_from_user(sptmp, arg->sprole_pws + i,
-+ sizeof (struct sprole_pw))) {
-+ err = -EFAULT;
-+ goto cleanup;
-+ }
-+
-+ len =
-+ strnlen_user(sptmp->rolename, GR_SPROLE_LEN);
-+
-+ if (!len || len >= GR_SPROLE_LEN) {
-+ err = -EINVAL;
-+ goto cleanup;
-+ }
-+
-+ if ((tmp = (char *) acl_alloc(len)) == NULL) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+
-+ if (copy_from_user(tmp, sptmp->rolename, len)) {
-+ err = -EFAULT;
-+ goto cleanup;
-+ }
-+
-+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
-+ printk(KERN_ALERT "Copying special role %s\n", tmp);
-+#endif
-+ sptmp->rolename = tmp;
-+ acl_special_roles[i] = sptmp;
-+ }
-+
-+ r_utmp = (struct acl_role_label **) arg->role_db.r_table;
-+
-+ for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
-+ r_tmp = acl_alloc(sizeof (struct acl_role_label));
-+
-+ if (!r_tmp) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+
-+ if (copy_from_user(&r_utmp2, r_utmp + r_num,
-+ sizeof (struct acl_role_label *))) {
-+ err = -EFAULT;
-+ goto cleanup;
-+ }
-+
-+ if (copy_from_user(r_tmp, r_utmp2,
-+ sizeof (struct acl_role_label))) {
-+ err = -EFAULT;
-+ goto cleanup;
-+ }
-+
-+ len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN);
-+
-+ if (!len || len >= PATH_MAX) {
-+ err = -EINVAL;
-+ goto cleanup;
-+ }
-+
-+ if ((tmp = (char *) acl_alloc(len)) == NULL) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+ if (copy_from_user(tmp, r_tmp->rolename, len)) {
-+ err = -EFAULT;
-+ goto cleanup;
-+ }
-+ r_tmp->rolename = tmp;
-+
-+ if (!strcmp(r_tmp->rolename, "default")
-+ && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
-+ default_role = r_tmp;
-+ } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
-+ kernel_role = r_tmp;
-+ }
-+
-+ if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+ if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct))) {
-+ err = -EFAULT;
-+ goto cleanup;
-+ }
-+
-+ r_tmp->hash = ghash;
-+
-+ num_subjs = count_user_subjs(r_tmp->hash->first);
-+
-+ r_tmp->subj_hash_size = num_subjs;
-+ r_tmp->subj_hash =
-+ (struct acl_subject_label **)
-+ create_table(&(r_tmp->subj_hash_size), sizeof(void *));
-+
-+ if (!r_tmp->subj_hash) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+
-+ err = copy_user_allowedips(r_tmp);
-+ if (err)
-+ goto cleanup;
-+
-+ /* copy domain info */
-+ if (r_tmp->domain_children != NULL) {
-+ domainlist = acl_alloc(r_tmp->domain_child_num * sizeof(uid_t));
-+ if (domainlist == NULL) {
-+ err = -ENOMEM;
-+ goto cleanup;
-+ }
-+ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t))) {
-+ err = -EFAULT;
-+ goto cleanup;
-+ }
-+ r_tmp->domain_children = domainlist;
-+ }
-+
-+ err = copy_user_transitions(r_tmp);
-+ if (err)
-+ goto cleanup;
-+
-+ memset(r_tmp->subj_hash, 0,
-+ r_tmp->subj_hash_size *
-+ sizeof (struct acl_subject_label *));
-+
-+ err = copy_user_subjs(r_tmp->hash->first, r_tmp);
-+
-+ if (err)
-+ goto cleanup;
-+
-+ /* set nested subject list to null */
-+ r_tmp->hash->first = NULL;
-+
-+ insert_acl_role_label(r_tmp);
-+ }
-+
-+ goto return_err;
-+ cleanup:
-+ free_variables();
-+ return_err:
-+ return err;
-+
-+}
-+
-+static int
-+gracl_init(struct gr_arg *args)
-+{
-+ int error = 0;
-+
-+ memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
-+ memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
-+
-+ if (init_variables(args)) {
-+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
-+ error = -ENOMEM;
-+ free_variables();
-+ goto out;
-+ }
-+
-+ error = copy_user_acl(args);
-+ free_init_variables();
-+ if (error) {
-+ free_variables();
-+ goto out;
-+ }
-+
-+ if ((error = gr_set_acls(0))) {
-+ free_variables();
-+ goto out;
-+ }
-+
-+ gr_status |= GR_READY;
-+ out:
-+ return error;
-+}
-+
-+/* derived from glibc fnmatch() 0: match, 1: no match*/
-+
-+static int
-+glob_match(const char *p, const char *n)
-+{
-+ char c;
-+
-+ while ((c = *p++) != '\0') {
-+ switch (c) {
-+ case '?':
-+ if (*n == '\0')
-+ return 1;
-+ else if (*n == '/')
-+ return 1;
-+ break;
-+ case '\\':
-+ if (*n != c)
-+ return 1;
-+ break;
-+ case '*':
-+ for (c = *p++; c == '?' || c == '*'; c = *p++) {
-+ if (*n == '/')
-+ return 1;
-+ else if (c == '?') {
-+ if (*n == '\0')
-+ return 1;
-+ else
-+ ++n;
-+ }
-+ }
-+ if (c == '\0') {
-+ return 0;
-+ } else {
-+ const char *endp;
-+
-+ if ((endp = strchr(n, '/')) == NULL)
-+ endp = n + strlen(n);
-+
-+ if (c == '[') {
-+ for (--p; n < endp; ++n)
-+ if (!glob_match(p, n))
-+ return 0;
-+ } else if (c == '/') {
-+ while (*n != '\0' && *n != '/')
-+ ++n;
-+ if (*n == '/' && !glob_match(p, n + 1))
-+ return 0;
-+ } else {
-+ for (--p; n < endp; ++n)
-+ if (*n == c && !glob_match(p, n))
-+ return 0;
-+ }
-+
-+ return 1;
-+ }
-+ case '[':
-+ {
-+ int not;
-+ char cold;
-+
-+ if (*n == '\0' || *n == '/')
-+ return 1;
-+
-+ not = (*p == '!' || *p == '^');
-+ if (not)
-+ ++p;
-+
-+ c = *p++;
-+ for (;;) {
-+ unsigned char fn = (unsigned char)*n;
-+
-+ if (c == '\0')
-+ return 1;
-+ else {
-+ if (c == fn)
-+ goto matched;
-+ cold = c;
-+ c = *p++;
-+
-+ if (c == '-' && *p != ']') {
-+ unsigned char cend = *p++;
-+
-+ if (cend == '\0')
-+ return 1;
-+
-+ if (cold <= fn && fn <= cend)
-+ goto matched;
-+
-+ c = *p++;
-+ }
-+ }
-+
-+ if (c == ']')
-+ break;
-+ }
-+ if (!not)
-+ return 1;
-+ break;
-+ matched:
-+ while (c != ']') {
-+ if (c == '\0')
-+ return 1;
-+
-+ c = *p++;
-+ }
-+ if (not)
-+ return 1;
-+ }
-+ break;
-+ default:
-+ if (c != *n)
-+ return 1;
-+ }
-+
-+ ++n;
-+ }
-+
-+ if (*n == '\0')
-+ return 0;
-+
-+ if (*n == '/')
-+ return 0;
-+
-+ return 1;
-+}
-+
-+static struct acl_object_label *
-+chk_glob_label(struct acl_object_label *globbed,
-+ struct dentry *dentry, struct vfsmount *mnt, char **path)
-+{
-+ struct acl_object_label *tmp;
-+
-+ if (*path == NULL)
-+ *path = gr_to_filename_nolock(dentry, mnt);
-+
-+ tmp = globbed;
-+
-+ while (tmp) {
-+ if (!glob_match(tmp->filename, *path))
-+ return tmp;
-+ tmp = tmp->next;
-+ }
-+
-+ return NULL;
-+}
-+
-+static struct acl_object_label *
-+__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
-+ const ino_t curr_ino, const dev_t curr_dev,
-+ const struct acl_subject_label *subj, char **path)
-+{
-+ struct acl_subject_label *tmpsubj;
-+ struct acl_object_label *retval;
-+ struct acl_object_label *retval2;
-+
-+ tmpsubj = (struct acl_subject_label *) subj;
-+ read_lock(&gr_inode_lock);
-+ do {
-+ retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
-+ if (retval) {
-+ if (retval->globbed) {
-+ retval2 = chk_glob_label(retval->globbed, (struct dentry *)orig_dentry,
-+ (struct vfsmount *)orig_mnt, path);
-+ if (retval2)
-+ retval = retval2;
-+ }
-+ break;
-+ }
-+ } while ((tmpsubj = tmpsubj->parent_subject));
-+ read_unlock(&gr_inode_lock);
-+
-+ return retval;
-+}
-+
-+static __inline__ struct acl_object_label *
-+full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
-+ const struct dentry *curr_dentry,
-+ const struct acl_subject_label *subj, char **path)
-+{
-+ return __full_lookup(orig_dentry, orig_mnt,
-+ curr_dentry->d_inode->i_ino,
-+ curr_dentry->d_inode->i_sb->s_dev, subj, path);
-+}
-+
-+static struct acl_object_label *
-+__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
-+ const struct acl_subject_label *subj, char *path)
-+{
-+ struct dentry *dentry = (struct dentry *) l_dentry;
-+ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
-+ struct acl_object_label *retval;
-+
-+ spin_lock(&dcache_lock);
-+
-+ if (unlikely(mnt == shm_mnt || mnt == pipe_mnt || mnt == sock_mnt ||
-+ /* ignore Eric Biederman */
-+ IS_PRIVATE(l_dentry->d_inode))) {
-+ retval = fakefs_obj;
-+ goto out;
-+ }
-+
-+ for (;;) {
-+ if (dentry == real_root && mnt == real_root_mnt)
-+ break;
-+
-+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
-+ if (mnt->mnt_parent == mnt)
-+ break;
-+
-+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path);
-+ if (retval != NULL)
-+ goto out;
-+
-+ dentry = mnt->mnt_mountpoint;
-+ mnt = mnt->mnt_parent;
-+ continue;
-+ }
-+
-+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path);
-+ if (retval != NULL)
-+ goto out;
-+
-+ dentry = dentry->d_parent;
-+ }
-+
-+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path);
-+
-+ if (retval == NULL)
-+ retval = full_lookup(l_dentry, l_mnt, real_root, subj, &path);
-+out:
-+ spin_unlock(&dcache_lock);
-+ return retval;
-+}
-+
-+static __inline__ struct acl_object_label *
-+chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
-+ const struct acl_subject_label *subj)
-+{
-+ char *path = NULL;
-+ return __chk_obj_label(l_dentry, l_mnt, subj, path);
-+}
-+
-+static __inline__ struct acl_object_label *
-+chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
-+ const struct acl_subject_label *subj, char *path)
-+{
-+ return __chk_obj_label(l_dentry, l_mnt, subj, path);
-+}
-+
-+static struct acl_subject_label *
-+chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
-+ const struct acl_role_label *role)
-+{
-+ struct dentry *dentry = (struct dentry *) l_dentry;
-+ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
-+ struct acl_subject_label *retval;
-+
-+ spin_lock(&dcache_lock);
-+
-+ for (;;) {
-+ if (dentry == real_root && mnt == real_root_mnt)
-+ break;
-+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
-+ if (mnt->mnt_parent == mnt)
-+ break;
-+
-+ read_lock(&gr_inode_lock);
-+ retval =
-+ lookup_acl_subj_label(dentry->d_inode->i_ino,
-+ dentry->d_inode->i_sb->s_dev, role);
-+ read_unlock(&gr_inode_lock);
-+ if (retval != NULL)
-+ goto out;
-+
-+ dentry = mnt->mnt_mountpoint;
-+ mnt = mnt->mnt_parent;
-+ continue;
-+ }
-+
-+ read_lock(&gr_inode_lock);
-+ retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
-+ dentry->d_inode->i_sb->s_dev, role);
-+ read_unlock(&gr_inode_lock);
-+ if (retval != NULL)
-+ goto out;
-+
-+ dentry = dentry->d_parent;
-+ }
-+
-+ read_lock(&gr_inode_lock);
-+ retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
-+ dentry->d_inode->i_sb->s_dev, role);
-+ read_unlock(&gr_inode_lock);
-+
-+ if (unlikely(retval == NULL)) {
-+ read_lock(&gr_inode_lock);
-+ retval = lookup_acl_subj_label(real_root->d_inode->i_ino,
-+ real_root->d_inode->i_sb->s_dev, role);
-+ read_unlock(&gr_inode_lock);
-+ }
-+out:
-+ spin_unlock(&dcache_lock);
-+
-+ return retval;
-+}
-+
-+static void
-+gr_log_learn(const struct task_struct *task, const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
-+{
-+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
-+ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
-+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
-+ 1, 1, gr_to_filename(dentry, mnt), (unsigned long) mode, NIPQUAD(task->signal->curr_ip));
-+
-+ return;
-+}
-+
-+static void
-+gr_log_learn_sysctl(const struct task_struct *task, const char *path, const __u32 mode)
-+{
-+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
-+ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
-+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
-+ 1, 1, path, (unsigned long) mode, NIPQUAD(task->signal->curr_ip));
-+
-+ return;
-+}
-+
-+static void
-+gr_log_learn_id_change(const struct task_struct *task, const char type, const unsigned int real,
-+ const unsigned int effective, const unsigned int fs)
-+{
-+ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
-+ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
-+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
-+ type, real, effective, fs, NIPQUAD(task->signal->curr_ip));
-+
-+ return;
-+}
-+
-+__u32
-+gr_check_link(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt,
-+ const struct dentry * old_dentry, const struct vfsmount * old_mnt)
-+{
-+ struct acl_object_label *obj;
-+ __u32 oldmode, newmode;
-+ __u32 needmode;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return (GR_CREATE | GR_LINK);
-+
-+ obj = chk_obj_label(old_dentry, old_mnt, current->acl);
-+ oldmode = obj->mode;
-+
-+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
-+ oldmode |= (GR_CREATE | GR_LINK);
-+
-+ needmode = GR_CREATE | GR_AUDIT_CREATE | GR_SUPPRESS;
-+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID))
-+ needmode |= GR_SETID | GR_AUDIT_SETID;
-+
-+ newmode =
-+ gr_check_create(new_dentry, parent_dentry, parent_mnt,
-+ oldmode | needmode);
-+
-+ needmode = newmode & (GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC |
-+ GR_SETID | GR_READ | GR_FIND | GR_DELETE |
-+ GR_INHERIT | GR_AUDIT_INHERIT);
-+
-+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID) && !(newmode & GR_SETID))
-+ goto bad;
-+
-+ if ((oldmode & needmode) != needmode)
-+ goto bad;
-+
-+ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
-+ if ((newmode & needmode) != needmode)
-+ goto bad;
-+
-+ if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
-+ return newmode;
-+bad:
-+ needmode = oldmode;
-+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID))
-+ needmode |= GR_SETID;
-+
-+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
-+ gr_log_learn(current, old_dentry, old_mnt, needmode);
-+ return (GR_CREATE | GR_LINK);
-+ } else if (newmode & GR_SUPPRESS)
-+ return GR_SUPPRESS;
-+ else
-+ return 0;
-+}
-+
-+__u32
-+gr_search_file(const struct dentry * dentry, const __u32 mode,
-+ const struct vfsmount * mnt)
-+{
-+ __u32 retval = mode;
-+ struct acl_subject_label *curracl;
-+ struct acl_object_label *currobj;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return (mode & ~GR_AUDITS);
-+
-+ curracl = current->acl;
-+
-+ currobj = chk_obj_label(dentry, mnt, curracl);
-+ retval = currobj->mode & mode;
-+
-+ if (unlikely
-+ ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
-+ && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
-+ __u32 new_mode = mode;
-+
-+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
-+
-+ retval = new_mode;
-+
-+ if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
-+ new_mode |= GR_INHERIT;
-+
-+ if (!(mode & GR_NOLEARN))
-+ gr_log_learn(current, dentry, mnt, new_mode);
-+ }
-+
-+ return retval;
-+}
-+
-+__u32
-+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
-+ const struct vfsmount * mnt, const __u32 mode)
-+{
-+ struct name_entry *match;
-+ struct acl_object_label *matchpo;
-+ struct acl_subject_label *curracl;
-+ char *path;
-+ __u32 retval;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return (mode & ~GR_AUDITS);
-+
-+ preempt_disable();
-+ path = gr_to_filename_rbac(new_dentry, mnt);
-+ match = lookup_name_entry_create(path);
-+
-+ if (!match)
-+ goto check_parent;
-+
-+ curracl = current->acl;
-+
-+ read_lock(&gr_inode_lock);
-+ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
-+ read_unlock(&gr_inode_lock);
-+
-+ if (matchpo) {
-+ if ((matchpo->mode & mode) !=
-+ (mode & ~(GR_AUDITS | GR_SUPPRESS))
-+ && curracl->mode & (GR_LEARN | GR_INHERITLEARN)) {
-+ __u32 new_mode = mode;
-+
-+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
-+
-+ gr_log_learn(current, new_dentry, mnt, new_mode);
-+
-+ preempt_enable();
-+ return new_mode;
-+ }
-+ preempt_enable();
-+ return (matchpo->mode & mode);
-+ }
-+
-+ check_parent:
-+ curracl = current->acl;
-+
-+ matchpo = chk_obj_create_label(parent, mnt, curracl, path);
-+ retval = matchpo->mode & mode;
-+
-+ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
-+ && (curracl->mode & (GR_LEARN | GR_INHERITLEARN))) {
-+ __u32 new_mode = mode;
-+
-+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
-+
-+ gr_log_learn(current, new_dentry, mnt, new_mode);
-+ preempt_enable();
-+ return new_mode;
-+ }
-+
-+ preempt_enable();
-+ return retval;
-+}
-+
-+int
-+gr_check_hidden_task(const struct task_struct *task)
-+{
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+
-+ if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
-+ return 1;
-+
-+ return 0;
-+}
-+
-+int
-+gr_check_protected_task(const struct task_struct *task)
-+{
-+ if (unlikely(!(gr_status & GR_READY) || !task))
-+ return 0;
-+
-+ if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
-+ task->acl != current->acl)
-+ return 1;
-+
-+ return 0;
-+}
-+
-+void
-+gr_copy_label(struct task_struct *tsk)
-+{
-+ tsk->signal->used_accept = 0;
-+ tsk->acl_sp_role = 0;
-+ tsk->acl_role_id = current->acl_role_id;
-+ tsk->acl = current->acl;
-+ tsk->role = current->role;
-+ tsk->signal->curr_ip = current->signal->curr_ip;
-+ if (current->exec_file)
-+ get_file(current->exec_file);
-+ tsk->exec_file = current->exec_file;
-+ tsk->is_writable = current->is_writable;
-+ if (unlikely(current->signal->used_accept))
-+ current->signal->curr_ip = 0;
-+
-+ return;
-+}
-+
-+static void
-+gr_set_proc_res(struct task_struct *task)
-+{
-+ struct acl_subject_label *proc;
-+ unsigned short i;
-+
-+ proc = task->acl;
-+
-+ if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
-+ return;
-+
-+ for (i = 0; i < (GR_NLIMITS - 1); i++) {
-+ if (!(proc->resmask & (1 << i)))
-+ continue;
-+
-+ task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur;
-+ task->signal->rlim[i].rlim_max = proc->res[i].rlim_max;
-+ }
-+
-+ return;
-+}
-+
-+int
-+gr_check_user_change(int real, int effective, int fs)
-+{
-+ unsigned int i;
-+ __u16 num;
-+ uid_t *uidlist;
-+ int curuid;
-+ int realok = 0;
-+ int effectiveok = 0;
-+ int fsok = 0;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+
-+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
-+ gr_log_learn_id_change(current, 'u', real, effective, fs);
-+
-+ num = current->acl->user_trans_num;
-+ uidlist = current->acl->user_transitions;
-+
-+ if (uidlist == NULL)
-+ return 0;
-+
-+ if (real == -1)
-+ realok = 1;
-+ if (effective == -1)
-+ effectiveok = 1;
-+ if (fs == -1)
-+ fsok = 1;
-+
-+ if (current->acl->user_trans_type & GR_ID_ALLOW) {
-+ for (i = 0; i < num; i++) {
-+ curuid = (int)uidlist[i];
-+ if (real == curuid)
-+ realok = 1;
-+ if (effective == curuid)
-+ effectiveok = 1;
-+ if (fs == curuid)
-+ fsok = 1;
-+ }
-+ } else if (current->acl->user_trans_type & GR_ID_DENY) {
-+ for (i = 0; i < num; i++) {
-+ curuid = (int)uidlist[i];
-+ if (real == curuid)
-+ break;
-+ if (effective == curuid)
-+ break;
-+ if (fs == curuid)
-+ break;
-+ }
-+ /* not in deny list */
-+ if (i == num) {
-+ realok = 1;
-+ effectiveok = 1;
-+ fsok = 1;
-+ }
-+ }
-+
-+ if (realok && effectiveok && fsok)
-+ return 0;
-+ else {
-+ gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real);
-+ return 1;
-+ }
-+}
-+
-+int
-+gr_check_group_change(int real, int effective, int fs)
-+{
-+ unsigned int i;
-+ __u16 num;
-+ gid_t *gidlist;
-+ int curgid;
-+ int realok = 0;
-+ int effectiveok = 0;
-+ int fsok = 0;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+
-+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
-+ gr_log_learn_id_change(current, 'g', real, effective, fs);
-+
-+ num = current->acl->group_trans_num;
-+ gidlist = current->acl->group_transitions;
-+
-+ if (gidlist == NULL)
-+ return 0;
-+
-+ if (real == -1)
-+ realok = 1;
-+ if (effective == -1)
-+ effectiveok = 1;
-+ if (fs == -1)
-+ fsok = 1;
-+
-+ if (current->acl->group_trans_type & GR_ID_ALLOW) {
-+ for (i = 0; i < num; i++) {
-+ curgid = (int)gidlist[i];
-+ if (real == curgid)
-+ realok = 1;
-+ if (effective == curgid)
-+ effectiveok = 1;
-+ if (fs == curgid)
-+ fsok = 1;
-+ }
-+ } else if (current->acl->group_trans_type & GR_ID_DENY) {
-+ for (i = 0; i < num; i++) {
-+ curgid = (int)gidlist[i];
-+ if (real == curgid)
-+ break;
-+ if (effective == curgid)
-+ break;
-+ if (fs == curgid)
-+ break;
-+ }
-+ /* not in deny list */
-+ if (i == num) {
-+ realok = 1;
-+ effectiveok = 1;
-+ fsok = 1;
-+ }
-+ }
-+
-+ if (realok && effectiveok && fsok)
-+ return 0;
-+ else {
-+ gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real);
-+ return 1;
-+ }
-+}
-+
-+void
-+gr_set_role_label(struct task_struct *task, const uid_t uid, const uid_t gid)
-+{
-+ struct acl_role_label *role = task->role;
-+ struct acl_subject_label *subj = NULL;
-+ struct acl_object_label *obj;
-+ struct file *filp;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return;
-+
-+ filp = task->exec_file;
-+
-+ /* kernel process, we'll give them the kernel role */
-+ if (unlikely(!filp)) {
-+ task->role = kernel_role;
-+ task->acl = kernel_role->root_label;
-+ return;
-+ } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL))
-+ role = lookup_acl_role_label(task, uid, gid);
-+
-+ /* perform subject lookup in possibly new role
-+ we can use this result below in the case where role == task->role
-+ */
-+ subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
-+
-+ /* if we changed uid/gid, but result in the same role
-+ and are using inheritance, don't lose the inherited subject
-+ if current subject is other than what normal lookup
-+ would result in, we arrived via inheritance, don't
-+ lose subject
-+ */
-+ if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) &&
-+ (subj == task->acl)))
-+ task->acl = subj;
-+
-+ task->role = role;
-+
-+ task->is_writable = 0;
-+
-+ /* ignore additional mmap checks for processes that are writable
-+ by the default ACL */
-+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ task->is_writable = 1;
-+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ task->is_writable = 1;
-+
-+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
-+ printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
-+#endif
-+
-+ gr_set_proc_res(task);
-+
-+ return;
-+}
-+
-+int
-+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ struct task_struct *task = current;
-+ struct acl_subject_label *newacl;
-+ struct acl_object_label *obj;
-+ __u32 retmode;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+
-+ newacl = chk_subj_label(dentry, mnt, task->role);
-+
-+ task_lock(task);
-+ if (((task->ptrace & PT_PTRACED) && !(task->acl->mode &
-+ GR_POVERRIDE) && (task->acl != newacl) &&
-+ !(task->role->roletype & GR_ROLE_GOD) &&
-+ !gr_search_file(dentry, GR_PTRACERD, mnt) &&
-+ !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) ||
-+ (atomic_read(&task->fs->count) > 1 ||
-+ atomic_read(&task->files->count) > 1 ||
-+ atomic_read(&task->sighand->count) > 1)) {
-+ task_unlock(task);
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
-+ return -EACCES;
-+ }
-+ task_unlock(task);
-+
-+ obj = chk_obj_label(dentry, mnt, task->acl);
-+ retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
-+
-+ if (!(task->acl->mode & GR_INHERITLEARN) &&
-+ ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
-+ if (obj->nested)
-+ task->acl = obj->nested;
-+ else
-+ task->acl = newacl;
-+ } else if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
-+ gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
-+
-+ task->is_writable = 0;
-+
-+ /* ignore additional mmap checks for processes that are writable
-+ by the default ACL */
-+ obj = chk_obj_label(dentry, mnt, default_role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ task->is_writable = 1;
-+ obj = chk_obj_label(dentry, mnt, task->role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ task->is_writable = 1;
-+
-+ gr_set_proc_res(task);
-+
-+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
-+ printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
-+#endif
-+ return 0;
-+}
-+
-+/* always called with valid inodev ptr */
-+static void
-+do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev)
-+{
-+ struct acl_object_label *matchpo;
-+ struct acl_subject_label *matchps;
-+ struct acl_subject_label *subj;
-+ struct acl_role_label *role;
-+ unsigned int i, x;
-+
-+ FOR_EACH_ROLE_START(role, i)
-+ FOR_EACH_SUBJECT_START(role, subj, x)
-+ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
-+ matchpo->mode |= GR_DELETED;
-+ FOR_EACH_SUBJECT_END(subj,x)
-+ FOR_EACH_NESTED_SUBJECT_START(role, subj)
-+ if (subj->inode == ino && subj->device == dev)
-+ subj->mode |= GR_DELETED;
-+ FOR_EACH_NESTED_SUBJECT_END(subj)
-+ if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
-+ matchps->mode |= GR_DELETED;
-+ FOR_EACH_ROLE_END(role,i)
-+
-+ inodev->nentry->deleted = 1;
-+
-+ return;
-+}
-+
-+void
-+gr_handle_delete(const ino_t ino, const dev_t dev)
-+{
-+ struct inodev_entry *inodev;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return;
-+
-+ write_lock(&gr_inode_lock);
-+ inodev = lookup_inodev_entry(ino, dev);
-+ if (inodev != NULL)
-+ do_handle_delete(inodev, ino, dev);
-+ write_unlock(&gr_inode_lock);
-+
-+ return;
-+}
-+
-+static void
-+update_acl_obj_label(const ino_t oldinode, const dev_t olddevice,
-+ const ino_t newinode, const dev_t newdevice,
-+ struct acl_subject_label *subj)
-+{
-+ unsigned int index = fhash(oldinode, olddevice, subj->obj_hash_size);
-+ struct acl_object_label *match;
-+
-+ match = subj->obj_hash[index];
-+
-+ while (match && (match->inode != oldinode ||
-+ match->device != olddevice ||
-+ !(match->mode & GR_DELETED)))
-+ match = match->next;
-+
-+ if (match && (match->inode == oldinode)
-+ && (match->device == olddevice)
-+ && (match->mode & GR_DELETED)) {
-+ if (match->prev == NULL) {
-+ subj->obj_hash[index] = match->next;
-+ if (match->next != NULL)
-+ match->next->prev = NULL;
-+ } else {
-+ match->prev->next = match->next;
-+ if (match->next != NULL)
-+ match->next->prev = match->prev;
-+ }
-+ match->prev = NULL;
-+ match->next = NULL;
-+ match->inode = newinode;
-+ match->device = newdevice;
-+ match->mode &= ~GR_DELETED;
-+
-+ insert_acl_obj_label(match, subj);
-+ }
-+
-+ return;
-+}
-+
-+static void
-+update_acl_subj_label(const ino_t oldinode, const dev_t olddevice,
-+ const ino_t newinode, const dev_t newdevice,
-+ struct acl_role_label *role)
-+{
-+ unsigned int index = fhash(oldinode, olddevice, role->subj_hash_size);
-+ struct acl_subject_label *match;
-+
-+ match = role->subj_hash[index];
-+
-+ while (match && (match->inode != oldinode ||
-+ match->device != olddevice ||
-+ !(match->mode & GR_DELETED)))
-+ match = match->next;
-+
-+ if (match && (match->inode == oldinode)
-+ && (match->device == olddevice)
-+ && (match->mode & GR_DELETED)) {
-+ if (match->prev == NULL) {
-+ role->subj_hash[index] = match->next;
-+ if (match->next != NULL)
-+ match->next->prev = NULL;
-+ } else {
-+ match->prev->next = match->next;
-+ if (match->next != NULL)
-+ match->next->prev = match->prev;
-+ }
-+ match->prev = NULL;
-+ match->next = NULL;
-+ match->inode = newinode;
-+ match->device = newdevice;
-+ match->mode &= ~GR_DELETED;
-+
-+ insert_acl_subj_label(match, role);
-+ }
-+
-+ return;
-+}
-+
-+static void
-+update_inodev_entry(const ino_t oldinode, const dev_t olddevice,
-+ const ino_t newinode, const dev_t newdevice)
-+{
-+ unsigned int index = fhash(oldinode, olddevice, inodev_set.i_size);
-+ struct inodev_entry *match;
-+
-+ match = inodev_set.i_hash[index];
-+
-+ while (match && (match->nentry->inode != oldinode ||
-+ match->nentry->device != olddevice || !match->nentry->deleted))
-+ match = match->next;
-+
-+ if (match && (match->nentry->inode == oldinode)
-+ && (match->nentry->device == olddevice) &&
-+ match->nentry->deleted) {
-+ if (match->prev == NULL) {
-+ inodev_set.i_hash[index] = match->next;
-+ if (match->next != NULL)
-+ match->next->prev = NULL;
-+ } else {
-+ match->prev->next = match->next;
-+ if (match->next != NULL)
-+ match->next->prev = match->prev;
-+ }
-+ match->prev = NULL;
-+ match->next = NULL;
-+ match->nentry->inode = newinode;
-+ match->nentry->device = newdevice;
-+ match->nentry->deleted = 0;
-+
-+ insert_inodev_entry(match);
-+ }
-+
-+ return;
-+}
-+
-+static void
-+do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
-+ const struct vfsmount *mnt)
-+{
-+ struct acl_subject_label *subj;
-+ struct acl_role_label *role;
-+ unsigned int i, x;
-+
-+ FOR_EACH_ROLE_START(role, i)
-+ update_acl_subj_label(matchn->inode, matchn->device,
-+ dentry->d_inode->i_ino,
-+ dentry->d_inode->i_sb->s_dev, role);
-+
-+ FOR_EACH_NESTED_SUBJECT_START(role, subj)
-+ if ((subj->inode == dentry->d_inode->i_ino) &&
-+ (subj->device == dentry->d_inode->i_sb->s_dev)) {
-+ subj->inode = dentry->d_inode->i_ino;
-+ subj->device = dentry->d_inode->i_sb->s_dev;
-+ }
-+ FOR_EACH_NESTED_SUBJECT_END(subj)
-+ FOR_EACH_SUBJECT_START(role, subj, x)
-+ update_acl_obj_label(matchn->inode, matchn->device,
-+ dentry->d_inode->i_ino,
-+ dentry->d_inode->i_sb->s_dev, subj);
-+ FOR_EACH_SUBJECT_END(subj,x)
-+ FOR_EACH_ROLE_END(role,i)
-+
-+ update_inodev_entry(matchn->inode, matchn->device,
-+ dentry->d_inode->i_ino, dentry->d_inode->i_sb->s_dev);
-+
-+ return;
-+}
-+
-+void
-+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ struct name_entry *matchn;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return;
-+
-+ preempt_disable();
-+ matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
-+
-+ if (unlikely((unsigned long)matchn)) {
-+ write_lock(&gr_inode_lock);
-+ do_handle_create(matchn, dentry, mnt);
-+ write_unlock(&gr_inode_lock);
-+ }
-+ preempt_enable();
-+
-+ return;
-+}
-+
-+void
-+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
-+ struct dentry *old_dentry,
-+ struct dentry *new_dentry,
-+ struct vfsmount *mnt, const __u8 replace)
-+{
-+ struct name_entry *matchn;
-+ struct inodev_entry *inodev;
-+
-+ /* vfs_rename swaps the name and parent link for old_dentry and
-+ new_dentry
-+ at this point, old_dentry has the new name, parent link, and inode
-+ for the renamed file
-+ if a file is being replaced by a rename, new_dentry has the inode
-+ and name for the replaced file
-+ */
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return;
-+
-+ preempt_disable();
-+ matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
-+
-+ /* we wouldn't have to check d_inode if it weren't for
-+ NFS silly-renaming
-+ */
-+
-+ write_lock(&gr_inode_lock);
-+ if (unlikely(replace && new_dentry->d_inode)) {
-+ inodev = lookup_inodev_entry(new_dentry->d_inode->i_ino,
-+ new_dentry->d_inode->i_sb->s_dev);
-+ if (inodev != NULL && (new_dentry->d_inode->i_nlink <= 1))
-+ do_handle_delete(inodev, new_dentry->d_inode->i_ino,
-+ new_dentry->d_inode->i_sb->s_dev);
-+ }
-+
-+ inodev = lookup_inodev_entry(old_dentry->d_inode->i_ino,
-+ old_dentry->d_inode->i_sb->s_dev);
-+ if (inodev != NULL && (old_dentry->d_inode->i_nlink <= 1))
-+ do_handle_delete(inodev, old_dentry->d_inode->i_ino,
-+ old_dentry->d_inode->i_sb->s_dev);
-+
-+ if (unlikely((unsigned long)matchn))
-+ do_handle_create(matchn, old_dentry, mnt);
-+
-+ write_unlock(&gr_inode_lock);
-+ preempt_enable();
-+
-+ return;
-+}
-+
-+static int
-+lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
-+ unsigned char **sum)
-+{
-+ struct acl_role_label *r;
-+ struct role_allowed_ip *ipp;
-+ struct role_transition *trans;
-+ unsigned int i;
-+ int found = 0;
-+
-+ /* check transition table */
-+
-+ for (trans = current->role->transitions; trans; trans = trans->next) {
-+ if (!strcmp(rolename, trans->rolename)) {
-+ found = 1;
-+ break;
-+ }
-+ }
-+
-+ if (!found)
-+ return 0;
-+
-+ /* handle special roles that do not require authentication
-+ and check ip */
-+
-+ FOR_EACH_ROLE_START(r, i)
-+ if (!strcmp(rolename, r->rolename) &&
-+ (r->roletype & GR_ROLE_SPECIAL)) {
-+ found = 0;
-+ if (r->allowed_ips != NULL) {
-+ for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
-+ if ((ntohl(current->signal->curr_ip) & ipp->netmask) ==
-+ (ntohl(ipp->addr) & ipp->netmask))
-+ found = 1;
-+ }
-+ } else
-+ found = 2;
-+ if (!found)
-+ return 0;
-+
-+ if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
-+ ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
-+ *salt = NULL;
-+ *sum = NULL;
-+ return 1;
-+ }
-+ }
-+ FOR_EACH_ROLE_END(r,i)
-+
-+ for (i = 0; i < num_sprole_pws; i++) {
-+ if (!strcmp(rolename, acl_special_roles[i]->rolename)) {
-+ *salt = acl_special_roles[i]->salt;
-+ *sum = acl_special_roles[i]->sum;
-+ return 1;
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+static void
-+assign_special_role(char *rolename)
-+{
-+ struct acl_object_label *obj;
-+ struct acl_role_label *r;
-+ struct acl_role_label *assigned = NULL;
-+ struct task_struct *tsk;
-+ struct file *filp;
-+ unsigned int i;
-+
-+ FOR_EACH_ROLE_START(r, i)
-+ if (!strcmp(rolename, r->rolename) &&
-+ (r->roletype & GR_ROLE_SPECIAL))
-+ assigned = r;
-+ FOR_EACH_ROLE_END(r,i)
-+
-+ if (!assigned)
-+ return;
-+
-+ read_lock(&tasklist_lock);
-+ read_lock(&grsec_exec_file_lock);
-+
-+ tsk = current->parent;
-+ if (tsk == NULL)
-+ goto out_unlock;
-+
-+ filp = tsk->exec_file;
-+ if (filp == NULL)
-+ goto out_unlock;
-+
-+ tsk->is_writable = 0;
-+
-+ tsk->acl_sp_role = 1;
-+ tsk->acl_role_id = ++acl_sp_role_value;
-+ tsk->role = assigned;
-+ tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
-+
-+ /* ignore additional mmap checks for processes that are writable
-+ by the default ACL */
-+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ tsk->is_writable = 1;
-+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ tsk->is_writable = 1;
-+
-+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
-+ printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename, tsk->acl->filename, tsk->comm, tsk->pid);
-+#endif
-+
-+out_unlock:
-+ read_unlock(&grsec_exec_file_lock);
-+ read_unlock(&tasklist_lock);
-+ return;
-+}
-+
-+int gr_check_secure_terminal(struct task_struct *task)
-+{
-+ struct task_struct *p, *p2, *p3;
-+ struct files_struct *files;
-+ struct fdtable *fdt;
-+ struct file *our_file = NULL, *file;
-+ int i;
-+
-+ if (task->signal->tty == NULL)
-+ return 1;
-+
-+ files = get_files_struct(task);
-+ if (files != NULL) {
-+ rcu_read_lock();
-+ fdt = files_fdtable(files);
-+ for (i=0; i < fdt->max_fds; i++) {
-+ file = fcheck_files(files, i);
-+ if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
-+ get_file(file);
-+ our_file = file;
-+ }
-+ }
-+ rcu_read_unlock();
-+ put_files_struct(files);
-+ }
-+
-+ if (our_file == NULL)
-+ return 1;
-+
-+ read_lock(&tasklist_lock);
-+ do_each_thread(p2, p) {
-+ files = get_files_struct(p);
-+ if (files == NULL ||
-+ (p->signal && p->signal->tty == task->signal->tty)) {
-+ if (files != NULL)
-+ put_files_struct(files);
-+ continue;
-+ }
-+ rcu_read_lock();
-+ fdt = files_fdtable(files);
-+ for (i=0; i < fdt->max_fds; i++) {
-+ file = fcheck_files(files, i);
-+ if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
-+ file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
-+ p3 = task;
-+ while (p3->pid > 0) {
-+ if (p3 == p)
-+ break;
-+ p3 = p3->parent;
-+ }
-+ if (p3 == p)
-+ break;
-+ gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
-+ gr_handle_alertkill(p);
-+ rcu_read_unlock();
-+ put_files_struct(files);
-+ read_unlock(&tasklist_lock);
-+ fput(our_file);
-+ return 0;
-+ }
-+ }
-+ rcu_read_unlock();
-+ put_files_struct(files);
-+ } while_each_thread(p2, p);
-+ read_unlock(&tasklist_lock);
-+
-+ fput(our_file);
-+ return 1;
-+}
-+
-+ssize_t
-+write_grsec_handler(struct file *file, const char * buf, size_t count, loff_t *ppos)
-+{
-+ struct gr_arg_wrapper uwrap;
-+ unsigned char *sprole_salt;
-+ unsigned char *sprole_sum;
-+ int error = sizeof (struct gr_arg_wrapper);
-+ int error2 = 0;
-+
-+ down(&gr_dev_sem);
-+
-+ if ((gr_status & GR_READY) && !(current->acl->mode & GR_KERNELAUTH)) {
-+ error = -EPERM;
-+ goto out;
-+ }
-+
-+ if (count != sizeof (struct gr_arg_wrapper)) {
-+ gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)sizeof(struct gr_arg_wrapper));
-+ error = -EINVAL;
-+ goto out;
-+ }
-+
-+
-+ if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
-+ gr_auth_expires = 0;
-+ gr_auth_attempts = 0;
-+ }
-+
-+ if (copy_from_user(&uwrap, buf, sizeof (struct gr_arg_wrapper))) {
-+ error = -EFAULT;
-+ goto out;
-+ }
-+
-+ if ((uwrap.version != GRSECURITY_VERSION) || (uwrap.size != sizeof(struct gr_arg))) {
-+ error = -EINVAL;
-+ goto out;
-+ }
-+
-+ if (copy_from_user(gr_usermode, uwrap.arg, sizeof (struct gr_arg))) {
-+ error = -EFAULT;
-+ goto out;
-+ }
-+
-+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
-+ gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
-+ time_after(gr_auth_expires, get_seconds())) {
-+ error = -EBUSY;
-+ goto out;
-+ }
-+
-+ /* if non-root trying to do anything other than use a special role,
-+ do not attempt authentication, do not count towards authentication
-+ locking
-+ */
-+
-+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
-+ gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
-+ current->uid) {
-+ error = -EPERM;
-+ goto out;
-+ }
-+
-+ /* ensure pw and special role name are null terminated */
-+
-+ gr_usermode->pw[GR_PW_LEN - 1] = '\0';
-+ gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
-+
-+ /* Okay.
-+ * We have our enough of the argument structure..(we have yet
-+ * to copy_from_user the tables themselves) . Copy the tables
-+ * only if we need them, i.e. for loading operations. */
-+
-+ switch (gr_usermode->mode) {
-+ case GR_STATUS:
-+ if (gr_status & GR_READY) {
-+ error = 1;
-+ if (!gr_check_secure_terminal(current))
-+ error = 3;
-+ } else
-+ error = 2;
-+ goto out;
-+ case GR_SHUTDOWN:
-+ if ((gr_status & GR_READY)
-+ && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
-+ gr_status &= ~GR_READY;
-+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
-+ free_variables();
-+ memset(gr_usermode, 0, sizeof (struct gr_arg));
-+ memset(gr_system_salt, 0, GR_SALT_LEN);
-+ memset(gr_system_sum, 0, GR_SHA_LEN);
-+ } else if (gr_status & GR_READY) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
-+ error = -EPERM;
-+ } else {
-+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
-+ error = -EAGAIN;
-+ }
-+ break;
-+ case GR_ENABLE:
-+ if (!(gr_status & GR_READY) && !(error2 = gracl_init(gr_usermode)))
-+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
-+ else {
-+ if (gr_status & GR_READY)
-+ error = -EAGAIN;
-+ else
-+ error = error2;
-+ gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
-+ }
-+ break;
-+ case GR_RELOAD:
-+ if (!(gr_status & GR_READY)) {
-+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
-+ error = -EAGAIN;
-+ } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
-+ lock_kernel();
-+ gr_status &= ~GR_READY;
-+ free_variables();
-+ if (!(error2 = gracl_init(gr_usermode))) {
-+ unlock_kernel();
-+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
-+ } else {
-+ unlock_kernel();
-+ error = error2;
-+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
-+ }
-+ } else {
-+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
-+ error = -EPERM;
-+ }
-+ break;
-+ case GR_SEGVMOD:
-+ if (unlikely(!(gr_status & GR_READY))) {
-+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
-+ error = -EAGAIN;
-+ break;
-+ }
-+
-+ if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
-+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
-+ if (gr_usermode->segv_device && gr_usermode->segv_inode) {
-+ struct acl_subject_label *segvacl;
-+ segvacl =
-+ lookup_acl_subj_label(gr_usermode->segv_inode,
-+ gr_usermode->segv_device,
-+ current->role);
-+ if (segvacl) {
-+ segvacl->crashes = 0;
-+ segvacl->expires = 0;
-+ }
-+ } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) {
-+ gr_remove_uid(gr_usermode->segv_uid);
-+ }
-+ } else {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
-+ error = -EPERM;
-+ }
-+ break;
-+ case GR_SPROLE:
-+ case GR_SPROLEPAM:
-+ if (unlikely(!(gr_status & GR_READY))) {
-+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
-+ error = -EAGAIN;
-+ break;
-+ }
-+
-+ if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
-+ current->role->expires = 0;
-+ current->role->auth_attempts = 0;
-+ }
-+
-+ if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
-+ time_after(current->role->expires, get_seconds())) {
-+ error = -EBUSY;
-+ goto out;
-+ }
-+
-+ if (lookup_special_role_auth
-+ (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum)
-+ && ((!sprole_salt && !sprole_sum)
-+ || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
-+ char *p = "";
-+ assign_special_role(gr_usermode->sp_role);
-+ read_lock(&tasklist_lock);
-+ if (current->parent)
-+ p = current->parent->role->rolename;
-+ read_unlock(&tasklist_lock);
-+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
-+ p, acl_sp_role_value);
-+ } else {
-+ gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
-+ error = -EPERM;
-+ if(!(current->role->auth_attempts++))
-+ current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
-+
-+ goto out;
-+ }
-+ break;
-+ case GR_UNSPROLE:
-+ if (unlikely(!(gr_status & GR_READY))) {
-+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
-+ error = -EAGAIN;
-+ break;
-+ }
-+
-+ if (current->role->roletype & GR_ROLE_SPECIAL) {
-+ char *p = "";
-+ int i = 0;
-+
-+ read_lock(&tasklist_lock);
-+ if (current->parent) {
-+ p = current->parent->role->rolename;
-+ i = current->parent->acl_role_id;
-+ }
-+ read_unlock(&tasklist_lock);
-+
-+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
-+ gr_set_acls(1);
-+ } else {
-+ gr_log_str(GR_DONT_AUDIT, GR_UNSPROLEF_ACL_MSG, current->role->rolename);
-+ error = -EPERM;
-+ goto out;
-+ }
-+ break;
-+ default:
-+ gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
-+ error = -EINVAL;
-+ break;
-+ }
-+
-+ if (error != -EPERM)
-+ goto out;
-+
-+ if(!(gr_auth_attempts++))
-+ gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
-+
-+ out:
-+ up(&gr_dev_sem);
-+ return error;
-+}
-+
-+int
-+gr_set_acls(const int type)
-+{
-+ struct acl_object_label *obj;
-+ struct task_struct *task, *task2;
-+ struct file *filp;
-+ struct acl_role_label *role = current->role;
-+ __u16 acl_role_id = current->acl_role_id;
-+
-+ read_lock(&tasklist_lock);
-+ read_lock(&grsec_exec_file_lock);
-+ do_each_thread(task2, task) {
-+ /* check to see if we're called from the exit handler,
-+ if so, only replace ACLs that have inherited the admin
-+ ACL */
-+
-+ if (type && (task->role != role ||
-+ task->acl_role_id != acl_role_id))
-+ continue;
-+
-+ task->acl_role_id = 0;
-+ task->acl_sp_role = 0;
-+
-+ if ((filp = task->exec_file)) {
-+ task->role = lookup_acl_role_label(task, task->uid, task->gid);
-+
-+ task->acl =
-+ chk_subj_label(filp->f_path.dentry, filp->f_path.mnt,
-+ task->role);
-+ if (task->acl) {
-+ struct acl_subject_label *curr;
-+ curr = task->acl;
-+
-+ task->is_writable = 0;
-+ /* ignore additional mmap checks for processes that are writable
-+ by the default ACL */
-+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ task->is_writable = 1;
-+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
-+ if (unlikely(obj->mode & GR_WRITE))
-+ task->is_writable = 1;
-+
-+ gr_set_proc_res(task);
-+
-+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
-+ printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
-+#endif
-+ } else {
-+ read_unlock(&grsec_exec_file_lock);
-+ read_unlock(&tasklist_lock);
-+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task->pid);
-+ return 1;
-+ }
-+ } else {
-+ // it's a kernel process
-+ task->role = kernel_role;
-+ task->acl = kernel_role->root_label;
-+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
-+ task->acl->mode &= ~GR_PROCFIND;
-+#endif
-+ }
-+ } while_each_thread(task2, task);
-+ read_unlock(&grsec_exec_file_lock);
-+ read_unlock(&tasklist_lock);
-+ return 0;
-+}
-+
-+void
-+gr_learn_resource(const struct task_struct *task,
-+ const int res, const unsigned long wanted, const int gt)
-+{
-+ struct acl_subject_label *acl;
-+
-+ if (unlikely((gr_status & GR_READY) &&
-+ task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
-+ goto skip_reslog;
-+
-+#ifdef CONFIG_GRKERNSEC_RESLOG
-+ gr_log_resource(task, res, wanted, gt);
-+#endif
-+ skip_reslog:
-+
-+ if (unlikely(!(gr_status & GR_READY) || !wanted))
-+ return;
-+
-+ acl = task->acl;
-+
-+ if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
-+ !(acl->resmask & (1 << (unsigned short) res))))
-+ return;
-+
-+ if (wanted >= acl->res[res].rlim_cur) {
-+ unsigned long res_add;
-+
-+ res_add = wanted;
-+ switch (res) {
-+ case RLIMIT_CPU:
-+ res_add += GR_RLIM_CPU_BUMP;
-+ break;
-+ case RLIMIT_FSIZE:
-+ res_add += GR_RLIM_FSIZE_BUMP;
-+ break;
-+ case RLIMIT_DATA:
-+ res_add += GR_RLIM_DATA_BUMP;
-+ break;
-+ case RLIMIT_STACK:
-+ res_add += GR_RLIM_STACK_BUMP;
-+ break;
-+ case RLIMIT_CORE:
-+ res_add += GR_RLIM_CORE_BUMP;
-+ break;
-+ case RLIMIT_RSS:
-+ res_add += GR_RLIM_RSS_BUMP;
-+ break;
-+ case RLIMIT_NPROC:
-+ res_add += GR_RLIM_NPROC_BUMP;
-+ break;
-+ case RLIMIT_NOFILE:
-+ res_add += GR_RLIM_NOFILE_BUMP;
-+ break;
-+ case RLIMIT_MEMLOCK:
-+ res_add += GR_RLIM_MEMLOCK_BUMP;
-+ break;
-+ case RLIMIT_AS:
-+ res_add += GR_RLIM_AS_BUMP;
-+ break;
-+ case RLIMIT_LOCKS:
-+ res_add += GR_RLIM_LOCKS_BUMP;
-+ break;
-+ }
-+
-+ acl->res[res].rlim_cur = res_add;
-+
-+ if (wanted > acl->res[res].rlim_max)
-+ acl->res[res].rlim_max = res_add;
-+
-+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
-+ task->role->roletype, acl->filename,
-+ acl->res[res].rlim_cur, acl->res[res].rlim_max,
-+ "", (unsigned long) res);
-+ }
-+
-+ return;
-+}
-+
-+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
-+void
-+pax_set_initial_flags(struct linux_binprm *bprm)
-+{
-+ struct task_struct *task = current;
-+ struct acl_subject_label *proc;
-+ unsigned long flags;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return;
-+
-+ flags = pax_get_flags(task);
-+
-+ proc = task->acl;
-+
-+ if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
-+ flags &= ~MF_PAX_PAGEEXEC;
-+ if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
-+ flags &= ~MF_PAX_SEGMEXEC;
-+ if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
-+ flags &= ~MF_PAX_RANDMMAP;
-+ if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
-+ flags &= ~MF_PAX_EMUTRAMP;
-+ if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
-+ flags &= ~MF_PAX_MPROTECT;
-+
-+ if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
-+ flags |= MF_PAX_PAGEEXEC;
-+ if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
-+ flags |= MF_PAX_SEGMEXEC;
-+ if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
-+ flags |= MF_PAX_RANDMMAP;
-+ if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
-+ flags |= MF_PAX_EMUTRAMP;
-+ if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
-+ flags |= MF_PAX_MPROTECT;
-+
-+ pax_set_flags(task, flags);
-+
-+ return;
-+}
-+#endif
-+
-+#ifdef CONFIG_SYSCTL
-+/* Eric Biederman likes breaking userland ABI and every inode-based security
-+ system to save 35kb of memory */
-+
-+/* we modify the passed in filename, but adjust it back before returning */
-+static struct acl_object_label *gr_lookup_by_name(char *name, unsigned int len)
-+{
-+ struct name_entry *nmatch;
-+ char *p, *lastp = NULL;
-+ struct acl_object_label *obj = NULL, *tmp;
-+ struct acl_subject_label *tmpsubj;
-+ char c = '\0';
-+
-+ read_lock(&gr_inode_lock);
-+
-+ p = name + len - 1;
-+ do {
-+ nmatch = lookup_name_entry(name);
-+ if (lastp != NULL)
-+ *lastp = c;
-+
-+ if (nmatch == NULL)
-+ goto next_component;
-+ tmpsubj = current->acl;
-+ do {
-+ obj = lookup_acl_obj_label(nmatch->inode, nmatch->device, tmpsubj);
-+ if (obj != NULL) {
-+ tmp = obj->globbed;
-+ while (tmp) {
-+ if (!glob_match(tmp->filename, name)) {
-+ obj = tmp;
-+ goto found_obj;
-+ }
-+ tmp = tmp->next;
-+ }
-+ goto found_obj;
-+ }
-+ } while ((tmpsubj = tmpsubj->parent_subject));
-+next_component:
-+ /* end case */
-+ if (p == name)
-+ break;
-+
-+ while (*p != '/')
-+ p--;
-+ if (p == name)
-+ lastp = p + 1;
-+ else {
-+ lastp = p;
-+ p--;
-+ }
-+ c = *lastp;
-+ *lastp = '\0';
-+ } while (1);
-+found_obj:
-+ read_unlock(&gr_inode_lock);
-+ /* obj returned will always be non-null */
-+ return obj;
-+}
-+
-+/* returns 0 when allowing, non-zero on error
-+ op of 0 is used for readdir, so we don't log the names of hidden files
-+*/
-+__u32
-+gr_handle_sysctl(const struct ctl_table *table, const int op)
-+{
-+ ctl_table *tmp;
-+ const char *proc_sys = "/proc/sys";
-+ char *path;
-+ struct acl_object_label *obj;
-+ unsigned short len = 0, pos = 0, depth = 0, i;
-+ __u32 err = 0;
-+ __u32 mode = 0;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+
-+ /* for now, ignore operations on non-sysctl entries if it's not a
-+ readdir*/
-+ if (table->child != NULL && op != 0)
-+ return 0;
-+
-+ mode |= GR_FIND;
-+ /* it's only a read if it's an entry, read on dirs is for readdir */
-+ if (op & MAY_READ)
-+ mode |= GR_READ;
-+ if (op & MAY_WRITE)
-+ mode |= GR_WRITE;
-+
-+ preempt_disable();
-+
-+ path = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
-+
-+ /* it's only a read/write if it's an actual entry, not a dir
-+ (which are opened for readdir)
-+ */
-+
-+ /* convert the requested sysctl entry into a pathname */
-+
-+ for (tmp = (ctl_table *)table; tmp != NULL; tmp = tmp->parent) {
-+ len += strlen(tmp->procname);
-+ len++;
-+ depth++;
-+ }
-+
-+ if ((len + depth + strlen(proc_sys) + 1) > PAGE_SIZE) {
-+ /* deny */
-+ goto out;
-+ }
-+
-+ memset(path, 0, PAGE_SIZE);
-+
-+ memcpy(path, proc_sys, strlen(proc_sys));
-+
-+ pos += strlen(proc_sys);
-+
-+ for (; depth > 0; depth--) {
-+ path[pos] = '/';
-+ pos++;
-+ for (i = 1, tmp = (ctl_table *)table; tmp != NULL; tmp = tmp->parent) {
-+ if (depth == i) {
-+ memcpy(path + pos, tmp->procname,
-+ strlen(tmp->procname));
-+ pos += strlen(tmp->procname);
-+ }
-+ i++;
-+ }
-+ }
-+
-+ obj = gr_lookup_by_name(path, pos);
-+ err = obj->mode & (mode | to_gr_audit(mode) | GR_SUPPRESS);
-+
-+ if (unlikely((current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) &&
-+ ((err & mode) != mode))) {
-+ __u32 new_mode = mode;
-+
-+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
-+
-+ err = 0;
-+ gr_log_learn_sysctl(current, path, new_mode);
-+ } else if (!(err & GR_FIND) && !(err & GR_SUPPRESS) && op != 0) {
-+ gr_log_hidden_sysctl(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, path);
-+ err = -ENOENT;
-+ } else if (!(err & GR_FIND)) {
-+ err = -ENOENT;
-+ } else if (((err & mode) & ~GR_FIND) != (mode & ~GR_FIND) && !(err & GR_SUPPRESS)) {
-+ gr_log_str4(GR_DONT_AUDIT, GR_SYSCTL_ACL_MSG, "denied",
-+ path, (mode & GR_READ) ? " reading" : "",
-+ (mode & GR_WRITE) ? " writing" : "");
-+ err = -EACCES;
-+ } else if ((err & mode) != mode) {
-+ err = -EACCES;
-+ } else if ((((err & mode) & ~GR_FIND) == (mode & ~GR_FIND)) && (err & GR_AUDITS)) {
-+ gr_log_str4(GR_DO_AUDIT, GR_SYSCTL_ACL_MSG, "successful",
-+ path, (mode & GR_READ) ? " reading" : "",
-+ (mode & GR_WRITE) ? " writing" : "");
-+ err = 0;
-+ } else
-+ err = 0;
-+
-+ out:
-+ preempt_enable();
-+
-+ return err;
-+}
-+#endif
-+
-+int
-+gr_handle_proc_ptrace(struct task_struct *task)
-+{
-+ struct file *filp;
-+ struct task_struct *tmp = task;
-+ struct task_struct *curtemp = current;
-+ __u32 retmode;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+
-+ read_lock(&tasklist_lock);
-+ read_lock(&grsec_exec_file_lock);
-+ filp = task->exec_file;
-+
-+ while (tmp->pid > 0) {
-+ if (tmp == curtemp)
-+ break;
-+ tmp = tmp->parent;
-+ }
-+
-+ if (!filp || (tmp->pid == 0 && !(current->acl->mode & GR_RELAXPTRACE))) {
-+ read_unlock(&grsec_exec_file_lock);
-+ read_unlock(&tasklist_lock);
-+ return 1;
-+ }
-+
-+ retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
-+ read_unlock(&grsec_exec_file_lock);
-+ read_unlock(&tasklist_lock);
-+
-+ if (retmode & GR_NOPTRACE)
-+ return 1;
-+
-+ if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
-+ && (current->acl != task->acl || (current->acl != current->role->root_label
-+ && current->pid != task->pid)))
-+ return 1;
-+
-+ return 0;
-+}
-+
-+int
-+gr_handle_ptrace(struct task_struct *task, const long request)
-+{
-+ struct task_struct *tmp = task;
-+ struct task_struct *curtemp = current;
-+ __u32 retmode;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 0;
-+
-+ read_lock(&tasklist_lock);
-+ while (tmp->pid > 0) {
-+ if (tmp == curtemp)
-+ break;
-+ tmp = tmp->parent;
-+ }
-+
-+ if (tmp->pid == 0 && !(current->acl->mode & GR_RELAXPTRACE)) {
-+ read_unlock(&tasklist_lock);
-+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
-+ return 1;
-+ }
-+ read_unlock(&tasklist_lock);
-+
-+ read_lock(&grsec_exec_file_lock);
-+ if (unlikely(!task->exec_file)) {
-+ read_unlock(&grsec_exec_file_lock);
-+ return 0;
-+ }
-+
-+ retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
-+ read_unlock(&grsec_exec_file_lock);
-+
-+ if (retmode & GR_NOPTRACE) {
-+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
-+ return 1;
-+ }
-+
-+ if (retmode & GR_PTRACERD) {
-+ switch (request) {
-+ case PTRACE_POKETEXT:
-+ case PTRACE_POKEDATA:
-+ case PTRACE_POKEUSR:
-+#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
-+ case PTRACE_SETREGS:
-+ case PTRACE_SETFPREGS:
-+#endif
-+#ifdef CONFIG_X86
-+ case PTRACE_SETFPXREGS:
-+#endif
-+#ifdef CONFIG_ALTIVEC
-+ case PTRACE_SETVRREGS:
-+#endif
-+ return 1;
-+ default:
-+ return 0;
-+ }
-+ } else if (!(current->acl->mode & GR_POVERRIDE) &&
-+ !(current->role->roletype & GR_ROLE_GOD) &&
-+ (current->acl != task->acl)) {
-+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
-+ return 1;
-+ }
-+
-+ return 0;
-+}
-+
-+static int is_writable_mmap(const struct file *filp)
-+{
-+ struct task_struct *task = current;
-+ struct acl_object_label *obj, *obj2;
-+
-+ if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
-+ !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode)) {
-+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
-+ obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
-+ task->role->root_label);
-+ if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
-+ return 1;
-+ }
-+ }
-+ return 0;
-+}
-+
-+int
-+gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
-+{
-+ __u32 mode;
-+
-+ if (unlikely(!file || !(prot & PROT_EXEC)))
-+ return 1;
-+
-+ if (is_writable_mmap(file))
-+ return 0;
-+
-+ mode =
-+ gr_search_file(file->f_path.dentry,
-+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
-+ file->f_path.mnt);
-+
-+ if (!gr_tpe_allow(file))
-+ return 0;
-+
-+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
-+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
-+ return 0;
-+ } else if (unlikely(!(mode & GR_EXEC))) {
-+ return 0;
-+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
-+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
-+ return 1;
-+ }
-+
-+ return 1;
-+}
-+
-+int
-+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
-+{
-+ __u32 mode;
-+
-+ if (unlikely(!file || !(prot & PROT_EXEC)))
-+ return 1;
-+
-+ if (is_writable_mmap(file))
-+ return 0;
-+
-+ mode =
-+ gr_search_file(file->f_path.dentry,
-+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
-+ file->f_path.mnt);
-+
-+ if (!gr_tpe_allow(file))
-+ return 0;
-+
-+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
-+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
-+ return 0;
-+ } else if (unlikely(!(mode & GR_EXEC))) {
-+ return 0;
-+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
-+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
-+ return 1;
-+ }
-+
-+ return 1;
-+}
-+
-+void
-+gr_acl_handle_psacct(struct task_struct *task, const long code)
-+{
-+ unsigned long runtime;
-+ unsigned long cputime;
-+ unsigned int wday, cday;
-+ __u8 whr, chr;
-+ __u8 wmin, cmin;
-+ __u8 wsec, csec;
-+ struct timespec timeval;
-+
-+ if (unlikely(!(gr_status & GR_READY) || !task->acl ||
-+ !(task->acl->mode & GR_PROCACCT)))
-+ return;
-+
-+ do_posix_clock_monotonic_gettime(&timeval);
-+ runtime = timeval.tv_sec - task->start_time.tv_sec;
-+ wday = runtime / (3600 * 24);
-+ runtime -= wday * (3600 * 24);
-+ whr = runtime / 3600;
-+ runtime -= whr * 3600;
-+ wmin = runtime / 60;
-+ runtime -= wmin * 60;
-+ wsec = runtime;
-+
-+ cputime = (task->utime + task->stime) / HZ;
-+ cday = cputime / (3600 * 24);
-+ cputime -= cday * (3600 * 24);
-+ chr = cputime / 3600;
-+ cputime -= chr * 3600;
-+ cmin = cputime / 60;
-+ cputime -= cmin * 60;
-+ csec = cputime;
-+
-+ gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
-+
-+ return;
-+}
-+
-+void gr_set_kernel_label(struct task_struct *task)
-+{
-+ if (gr_status & GR_READY) {
-+ task->role = kernel_role;
-+ task->acl = kernel_role->root_label;
-+ }
-+ return;
-+}
-+
-+int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino)
-+{
-+ struct task_struct *task = current;
-+ struct dentry *dentry = file->f_path.dentry;
-+ struct vfsmount *mnt = file->f_path.mnt;
-+ struct acl_object_label *obj, *tmp;
-+ struct acl_subject_label *subj;
-+ unsigned int bufsize;
-+ int is_not_root;
-+ char *path;
-+
-+ if (unlikely(!(gr_status & GR_READY)))
-+ return 1;
-+
-+ if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
-+ return 1;
-+
-+ /* ignore Eric Biederman */
-+ if (IS_PRIVATE(dentry->d_inode))
-+ return 1;
-+
-+ subj = task->acl;
-+ do {
-+ obj = lookup_acl_obj_label(ino, dentry->d_inode->i_sb->s_dev, subj);
-+ if (obj != NULL)
-+ return (obj->mode & GR_FIND) ? 1 : 0;
-+ } while ((subj = subj->parent_subject));
-+
-+ obj = chk_obj_label(dentry, mnt, task->acl);
-+ if (obj->globbed == NULL)
-+ return (obj->mode & GR_FIND) ? 1 : 0;
-+
-+ is_not_root = ((obj->filename[0] == '/') &&
-+ (obj->filename[1] == '\0')) ? 0 : 1;
-+ bufsize = PAGE_SIZE - namelen - is_not_root;
-+
-+ /* check bufsize > PAGE_SIZE || bufsize == 0 */
-+ if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
-+ return 1;
-+
-+ preempt_disable();
-+ path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
-+ bufsize);
-+
-+ bufsize = strlen(path);
-+
-+ /* if base is "/", don't append an additional slash */
-+ if (is_not_root)
-+ *(path + bufsize) = '/';
-+ memcpy(path + bufsize + is_not_root, name, namelen);
-+ *(path + bufsize + namelen + is_not_root) = '\0';
-+
-+ tmp = obj->globbed;
-+ while (tmp) {
-+ if (!glob_match(tmp->filename, path)) {
-+ preempt_enable();
-+ return (tmp->mode & GR_FIND) ? 1 : 0;
-+ }
-+ tmp = tmp->next;
-+ }
-+ preempt_enable();
-+ return (obj->mode & GR_FIND) ? 1 : 0;
-+}
-+
-+EXPORT_SYMBOL(gr_learn_resource);
-+EXPORT_SYMBOL(gr_set_kernel_label);
-+#ifdef CONFIG_SECURITY
-+EXPORT_SYMBOL(gr_check_user_change);
-+EXPORT_SYMBOL(gr_check_group_change);
-+#endif
-+
-diff -urNp linux-2.6.28.7/grsecurity/gracl_cap.c linux-2.6.28.7/grsecurity/gracl_cap.c
---- linux-2.6.28.7/grsecurity/gracl_cap.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_cap.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,129 @@
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/sched.h>
-+#include <linux/gracl.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+static const char *captab_log[] = {
-+ "CAP_CHOWN",
-+ "CAP_DAC_OVERRIDE",
-+ "CAP_DAC_READ_SEARCH",
-+ "CAP_FOWNER",
-+ "CAP_FSETID",
-+ "CAP_KILL",
-+ "CAP_SETGID",
-+ "CAP_SETUID",
-+ "CAP_SETPCAP",
-+ "CAP_LINUX_IMMUTABLE",
-+ "CAP_NET_BIND_SERVICE",
-+ "CAP_NET_BROADCAST",
-+ "CAP_NET_ADMIN",
-+ "CAP_NET_RAW",
-+ "CAP_IPC_LOCK",
-+ "CAP_IPC_OWNER",
-+ "CAP_SYS_MODULE",
-+ "CAP_SYS_RAWIO",
-+ "CAP_SYS_CHROOT",
-+ "CAP_SYS_PTRACE",
-+ "CAP_SYS_PACCT",
-+ "CAP_SYS_ADMIN",
-+ "CAP_SYS_BOOT",
-+ "CAP_SYS_NICE",
-+ "CAP_SYS_RESOURCE",
-+ "CAP_SYS_TIME",
-+ "CAP_SYS_TTY_CONFIG",
-+ "CAP_MKNOD",
-+ "CAP_LEASE",
-+ "CAP_AUDIT_WRITE",
-+ "CAP_AUDIT_CONTROL",
-+ "CAP_SETFCAP",
-+ "CAP_MAC_OVERRIDE",
-+ "CAP_MAC_ADMIN"
-+};
-+
-+EXPORT_SYMBOL(gr_task_is_capable);
-+EXPORT_SYMBOL(gr_is_capable_nolog);
-+
-+int
-+gr_task_is_capable(struct task_struct *task, const int cap)
-+{
-+ struct acl_subject_label *curracl;
-+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
-+
-+ if (!gr_acl_is_enabled())
-+ return 1;
-+
-+ curracl = task->acl;
-+
-+ cap_drop = curracl->cap_lower;
-+ cap_mask = curracl->cap_mask;
-+
-+ while ((curracl = curracl->parent_subject)) {
-+ /* if the cap isn't specified in the current computed mask but is specified in the
-+ current level subject, and is lowered in the current level subject, then add
-+ it to the set of dropped capabilities
-+ otherwise, add the current level subject's mask to the current computed mask
-+ */
-+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
-+ cap_raise(cap_mask, cap);
-+ if (cap_raised(curracl->cap_lower, cap))
-+ cap_raise(cap_drop, cap);
-+ }
-+ }
-+
-+ if (!cap_raised(cap_drop, cap))
-+ return 1;
-+
-+ curracl = task->acl;
-+
-+ if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN))
-+ && cap_raised(task->cap_effective, cap)) {
-+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
-+ task->role->roletype, task->uid,
-+ task->gid, task->exec_file ?
-+ gr_to_filename(task->exec_file->f_path.dentry,
-+ task->exec_file->f_path.mnt) : curracl->filename,
-+ curracl->filename, 0UL,
-+ 0UL, "", (unsigned long) cap, NIPQUAD(task->signal->curr_ip));
-+ return 1;
-+ }
-+
-+ if ((cap >= 0) && (cap < (sizeof(captab_log)/sizeof(captab_log[0]))) && cap_raised(task->cap_effective, cap))
-+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
-+ return 0;
-+}
-+
-+int
-+gr_is_capable_nolog(const int cap)
-+{
-+ struct acl_subject_label *curracl;
-+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
-+
-+ if (!gr_acl_is_enabled())
-+ return 1;
-+
-+ curracl = current->acl;
-+
-+ cap_drop = curracl->cap_lower;
-+ cap_mask = curracl->cap_mask;
-+
-+ while ((curracl = curracl->parent_subject)) {
-+ /* if the cap isn't specified in the current computed mask but is specified in the
-+ current level subject, and is lowered in the current level subject, then add
-+ it to the set of dropped capabilities
-+ otherwise, add the current level subject's mask to the current computed mask
-+ */
-+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
-+ cap_raise(cap_mask, cap);
-+ if (cap_raised(curracl->cap_lower, cap))
-+ cap_raise(cap_drop, cap);
-+ }
-+ }
-+
-+ if (!cap_raised(cap_drop, cap))
-+ return 1;
-+
-+ return 0;
-+}
-+
-diff -urNp linux-2.6.28.7/grsecurity/gracl_fs.c linux-2.6.28.7/grsecurity/gracl_fs.c
---- linux-2.6.28.7/grsecurity/gracl_fs.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_fs.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,423 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/types.h>
-+#include <linux/fs.h>
-+#include <linux/file.h>
-+#include <linux/stat.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+#include <linux/gracl.h>
-+
-+__u32
-+gr_acl_handle_hidden_file(const struct dentry * dentry,
-+ const struct vfsmount * mnt)
-+{
-+ __u32 mode;
-+
-+ if (unlikely(!dentry->d_inode))
-+ return GR_FIND;
-+
-+ mode =
-+ gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
-+
-+ if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
-+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
-+ return mode;
-+ } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
-+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
-+ return 0;
-+ } else if (unlikely(!(mode & GR_FIND)))
-+ return 0;
-+
-+ return GR_FIND;
-+}
-+
-+__u32
-+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
-+ const int fmode)
-+{
-+ __u32 reqmode = GR_FIND;
-+ __u32 mode;
-+
-+ if (unlikely(!dentry->d_inode))
-+ return reqmode;
-+
-+ if (unlikely(fmode & O_APPEND))
-+ reqmode |= GR_APPEND;
-+ else if (unlikely(fmode & FMODE_WRITE))
-+ reqmode |= GR_WRITE;
-+ if (likely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY)))
-+ reqmode |= GR_READ;
-+
-+ mode =
-+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
-+ mnt);
-+
-+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
-+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
-+ reqmode & GR_READ ? " reading" : "",
-+ reqmode & GR_WRITE ? " writing" : reqmode &
-+ GR_APPEND ? " appending" : "");
-+ return reqmode;
-+ } else
-+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
-+ {
-+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
-+ reqmode & GR_READ ? " reading" : "",
-+ reqmode & GR_WRITE ? " writing" : reqmode &
-+ GR_APPEND ? " appending" : "");
-+ return 0;
-+ } else if (unlikely((mode & reqmode) != reqmode))
-+ return 0;
-+
-+ return reqmode;
-+}
-+
-+__u32
-+gr_acl_handle_creat(const struct dentry * dentry,
-+ const struct dentry * p_dentry,
-+ const struct vfsmount * p_mnt, const int fmode,
-+ const int imode)
-+{
-+ __u32 reqmode = GR_WRITE | GR_CREATE;
-+ __u32 mode;
-+
-+ if (unlikely(fmode & O_APPEND))
-+ reqmode |= GR_APPEND;
-+ if (unlikely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY)))
-+ reqmode |= GR_READ;
-+ if (unlikely((fmode & O_CREAT) && (imode & (S_ISUID | S_ISGID))))
-+ reqmode |= GR_SETID;
-+
-+ mode =
-+ gr_check_create(dentry, p_dentry, p_mnt,
-+ reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
-+
-+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
-+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
-+ reqmode & GR_READ ? " reading" : "",
-+ reqmode & GR_WRITE ? " writing" : reqmode &
-+ GR_APPEND ? " appending" : "");
-+ return reqmode;
-+ } else
-+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
-+ {
-+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
-+ reqmode & GR_READ ? " reading" : "",
-+ reqmode & GR_WRITE ? " writing" : reqmode &
-+ GR_APPEND ? " appending" : "");
-+ return 0;
-+ } else if (unlikely((mode & reqmode) != reqmode))
-+ return 0;
-+
-+ return reqmode;
-+}
-+
-+__u32
-+gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
-+ const int fmode)
-+{
-+ __u32 mode, reqmode = GR_FIND;
-+
-+ if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
-+ reqmode |= GR_EXEC;
-+ if (fmode & S_IWOTH)
-+ reqmode |= GR_WRITE;
-+ if (fmode & S_IROTH)
-+ reqmode |= GR_READ;
-+
-+ mode =
-+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
-+ mnt);
-+
-+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
-+ gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
-+ reqmode & GR_READ ? " reading" : "",
-+ reqmode & GR_WRITE ? " writing" : "",
-+ reqmode & GR_EXEC ? " executing" : "");
-+ return reqmode;
-+ } else
-+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
-+ {
-+ gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
-+ reqmode & GR_READ ? " reading" : "",
-+ reqmode & GR_WRITE ? " writing" : "",
-+ reqmode & GR_EXEC ? " executing" : "");
-+ return 0;
-+ } else if (unlikely((mode & reqmode) != reqmode))
-+ return 0;
-+
-+ return reqmode;
-+}
-+
-+static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
-+{
-+ __u32 mode;
-+
-+ mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
-+
-+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
-+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
-+ return mode;
-+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
-+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
-+ return 0;
-+ } else if (unlikely((mode & (reqmode)) != (reqmode)))
-+ return 0;
-+
-+ return (reqmode);
-+}
-+
-+__u32
-+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
-+{
-+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
-+}
-+
-+__u32
-+gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
-+}
-+
-+__u32
-+gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
-+}
-+
-+__u32
-+gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
-+}
-+
-+__u32
-+gr_acl_handle_fchmod(const struct dentry *dentry, const struct vfsmount *mnt,
-+ mode_t mode)
-+{
-+ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
-+ return 1;
-+
-+ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) {
-+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
-+ GR_FCHMOD_ACL_MSG);
-+ } else {
-+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_FCHMOD_ACL_MSG);
-+ }
-+}
-+
-+__u32
-+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
-+ mode_t mode)
-+{
-+ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) {
-+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
-+ GR_CHMOD_ACL_MSG);
-+ } else {
-+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
-+ }
-+}
-+
-+__u32
-+gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
-+}
-+
-+__u32
-+gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
-+}
-+
-+__u32
-+gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
-+ GR_UNIXCONNECT_ACL_MSG);
-+}
-+
-+/* hardlinks require at minimum create permission,
-+ any additional privilege required is based on the
-+ privilege of the file being linked to
-+*/
-+__u32
-+gr_acl_handle_link(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt,
-+ const struct dentry * old_dentry,
-+ const struct vfsmount * old_mnt, const char *to)
-+{
-+ __u32 mode;
-+ __u32 needmode = GR_CREATE | GR_LINK;
-+ __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
-+
-+ mode =
-+ gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
-+ old_mnt);
-+
-+ if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
-+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to);
-+ return mode;
-+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
-+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to);
-+ return 0;
-+ } else if (unlikely((mode & needmode) != needmode))
-+ return 0;
-+
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_symlink(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt, const char *from)
-+{
-+ __u32 needmode = GR_WRITE | GR_CREATE;
-+ __u32 mode;
-+
-+ mode =
-+ gr_check_create(new_dentry, parent_dentry, parent_mnt,
-+ GR_CREATE | GR_AUDIT_CREATE |
-+ GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
-+
-+ if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
-+ gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt);
-+ return mode;
-+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
-+ gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt);
-+ return 0;
-+ } else if (unlikely((mode & needmode) != needmode))
-+ return 0;
-+
-+ return (GR_WRITE | GR_CREATE);
-+}
-+
-+static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt)
-+{
-+ __u32 mode;
-+
-+ mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
-+
-+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
-+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
-+ return mode;
-+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
-+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
-+ return 0;
-+ } else if (unlikely((mode & (reqmode)) != (reqmode)))
-+ return 0;
-+
-+ return (reqmode);
-+}
-+
-+__u32
-+gr_acl_handle_mknod(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt,
-+ const int mode)
-+{
-+ __u32 reqmode = GR_WRITE | GR_CREATE;
-+ if (unlikely(mode & (S_ISUID | S_ISGID)))
-+ reqmode |= GR_SETID;
-+
-+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
-+ reqmode, GR_MKNOD_ACL_MSG);
-+}
-+
-+__u32
-+gr_acl_handle_mkdir(const struct dentry *new_dentry,
-+ const struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt)
-+{
-+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
-+ GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
-+}
-+
-+#define RENAME_CHECK_SUCCESS(old, new) \
-+ (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
-+ ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
-+
-+int
-+gr_acl_handle_rename(struct dentry *new_dentry,
-+ struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt,
-+ struct dentry *old_dentry,
-+ struct inode *old_parent_inode,
-+ struct vfsmount *old_mnt, const char *newname)
-+{
-+ __u32 comp1, comp2;
-+ int error = 0;
-+
-+ if (unlikely(!gr_acl_is_enabled()))
-+ return 0;
-+
-+ if (!new_dentry->d_inode) {
-+ comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
-+ GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
-+ GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
-+ comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
-+ GR_DELETE | GR_AUDIT_DELETE |
-+ GR_AUDIT_READ | GR_AUDIT_WRITE |
-+ GR_SUPPRESS, old_mnt);
-+ } else {
-+ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
-+ GR_CREATE | GR_DELETE |
-+ GR_AUDIT_CREATE | GR_AUDIT_DELETE |
-+ GR_AUDIT_READ | GR_AUDIT_WRITE |
-+ GR_SUPPRESS, parent_mnt);
-+ comp2 =
-+ gr_search_file(old_dentry,
-+ GR_READ | GR_WRITE | GR_AUDIT_READ |
-+ GR_DELETE | GR_AUDIT_DELETE |
-+ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
-+ }
-+
-+ if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
-+ ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
-+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname);
-+ else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
-+ && !(comp2 & GR_SUPPRESS)) {
-+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname);
-+ error = -EACCES;
-+ } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
-+ error = -EACCES;
-+
-+ return error;
-+}
-+
-+void
-+gr_acl_handle_exit(void)
-+{
-+ u16 id;
-+ char *rolename;
-+ struct file *exec_file;
-+
-+ if (unlikely(current->acl_sp_role && gr_acl_is_enabled())) {
-+ id = current->acl_role_id;
-+ rolename = current->role->rolename;
-+ gr_set_acls(1);
-+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
-+ }
-+
-+ write_lock(&grsec_exec_file_lock);
-+ exec_file = current->exec_file;
-+ current->exec_file = NULL;
-+ write_unlock(&grsec_exec_file_lock);
-+
-+ if (exec_file)
-+ fput(exec_file);
-+}
-+
-+int
-+gr_acl_handle_procpidmem(const struct task_struct *task)
-+{
-+ if (unlikely(!gr_acl_is_enabled()))
-+ return 0;
-+
-+ if (task != current && task->acl->mode & GR_PROTPROCFD)
-+ return -EACCES;
-+
-+ return 0;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/gracl_ip.c linux-2.6.28.7/grsecurity/gracl_ip.c
---- linux-2.6.28.7/grsecurity/gracl_ip.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_ip.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,338 @@
-+#include <linux/kernel.h>
-+#include <asm/uaccess.h>
-+#include <asm/errno.h>
-+#include <net/sock.h>
-+#include <linux/file.h>
-+#include <linux/fs.h>
-+#include <linux/net.h>
-+#include <linux/in.h>
-+#include <linux/skbuff.h>
-+#include <linux/ip.h>
-+#include <linux/udp.h>
-+#include <linux/smp_lock.h>
-+#include <linux/types.h>
-+#include <linux/sched.h>
-+#include <linux/netdevice.h>
-+#include <linux/inetdevice.h>
-+#include <linux/gracl.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+#define GR_BIND 0x01
-+#define GR_CONNECT 0x02
-+#define GR_INVERT 0x04
-+#define GR_BINDOVERRIDE 0x08
-+#define GR_CONNECTOVERRIDE 0x10
-+
-+static const char * gr_protocols[256] = {
-+ "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
-+ "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
-+ "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
-+ "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
-+ "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
-+ "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
-+ "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
-+ "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
-+ "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
-+ "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak",
-+ "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf",
-+ "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
-+ "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
-+ "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
-+ "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
-+ "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
-+ "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
-+ "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
-+ "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
-+ "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
-+ "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
-+ "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
-+ "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
-+ "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
-+ "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
-+ "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
-+ "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
-+ "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
-+ "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
-+ "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
-+ "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
-+ "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
-+ };
-+
-+static const char * gr_socktypes[11] = {
-+ "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6",
-+ "unknown:7", "unknown:8", "unknown:9", "packet"
-+ };
-+
-+const char *
-+gr_proto_to_name(unsigned char proto)
-+{
-+ return gr_protocols[proto];
-+}
-+
-+const char *
-+gr_socktype_to_name(unsigned char type)
-+{
-+ return gr_socktypes[type];
-+}
-+
-+int
-+gr_search_socket(const int domain, const int type, const int protocol)
-+{
-+ struct acl_subject_label *curr;
-+
-+ if (unlikely(!gr_acl_is_enabled()))
-+ goto exit;
-+
-+ if ((domain < 0) || (type < 0) || (protocol < 0) || (domain != PF_INET)
-+ || (domain >= NPROTO) || (type >= SOCK_MAX) || (protocol > 255))
-+ goto exit; // let the kernel handle it
-+
-+ curr = current->acl;
-+
-+ if (!curr->ips)
-+ goto exit;
-+
-+ if ((curr->ip_type & (1 << type)) &&
-+ (curr->ip_proto[protocol / 32] & (1 << (protocol % 32))))
-+ goto exit;
-+
-+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
-+ /* we don't place acls on raw sockets , and sometimes
-+ dgram/ip sockets are opened for ioctl and not
-+ bind/connect, so we'll fake a bind learn log */
-+ if (type == SOCK_RAW || type == SOCK_PACKET) {
-+ __u32 fakeip = 0;
-+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
-+ current->role->roletype, current->uid,
-+ current->gid, current->exec_file ?
-+ gr_to_filename(current->exec_file->f_path.dentry,
-+ current->exec_file->f_path.mnt) :
-+ curr->filename, curr->filename,
-+ NIPQUAD(fakeip), 0, type,
-+ protocol, GR_CONNECT,
-+NIPQUAD(current->signal->curr_ip));
-+ } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
-+ __u32 fakeip = 0;
-+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
-+ current->role->roletype, current->uid,
-+ current->gid, current->exec_file ?
-+ gr_to_filename(current->exec_file->f_path.dentry,
-+ current->exec_file->f_path.mnt) :
-+ curr->filename, curr->filename,
-+ NIPQUAD(fakeip), 0, type,
-+ protocol, GR_BIND, NIPQUAD(current->signal->curr_ip));
-+ }
-+ /* we'll log when they use connect or bind */
-+ goto exit;
-+ }
-+
-+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, "inet",
-+ gr_socktype_to_name(type), gr_proto_to_name(protocol));
-+
-+ return 0;
-+ exit:
-+ return 1;
-+}
-+
-+int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask)
-+{
-+ if ((ip->mode & mode) &&
-+ (ip_port >= ip->low) &&
-+ (ip_port <= ip->high) &&
-+ ((ntohl(ip_addr) & our_netmask) ==
-+ (ntohl(our_addr) & our_netmask))
-+ && (ip->proto[protocol / 32] & (1 << (protocol % 32)))
-+ && (ip->type & (1 << type))) {
-+ if (ip->mode & GR_INVERT)
-+ return 2; // specifically denied
-+ else
-+ return 1; // allowed
-+ }
-+
-+ return 0; // not specifically allowed, may continue parsing
-+}
-+
-+static int
-+gr_search_connectbind(const int full_mode, struct sock *sk,
-+ struct sockaddr_in *addr, const int type)
-+{
-+ char iface[IFNAMSIZ] = {0};
-+ struct acl_subject_label *curr;
-+ struct acl_ip_label *ip;
-+ struct inet_sock *isk;
-+ struct net_device *dev;
-+ struct in_device *idev;
-+ unsigned long i;
-+ int ret;
-+ int mode = full_mode & (GR_BIND | GR_CONNECT);
-+ __u32 ip_addr = 0;
-+ __u32 our_addr;
-+ __u32 our_netmask;
-+ char *p;
-+ __u16 ip_port = 0;
-+
-+ if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
-+ return 0;
-+
-+ curr = current->acl;
-+ isk = inet_sk(sk);
-+
-+ /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
-+ if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
-+ addr->sin_addr.s_addr = curr->inaddr_any_override;
-+ if ((full_mode & GR_CONNECT) && isk->saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
-+ struct sockaddr_in saddr;
-+ int err;
-+
-+ saddr.sin_family = AF_INET;
-+ saddr.sin_addr.s_addr = curr->inaddr_any_override;
-+ saddr.sin_port = isk->sport;
-+
-+ err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
-+ if (err)
-+ return err;
-+
-+ err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
-+ if (err)
-+ return err;
-+ }
-+
-+ if (!curr->ips)
-+ return 0;
-+
-+ ip_addr = addr->sin_addr.s_addr;
-+ ip_port = ntohs(addr->sin_port);
-+
-+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
-+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
-+ current->role->roletype, current->uid,
-+ current->gid, current->exec_file ?
-+ gr_to_filename(current->exec_file->f_path.dentry,
-+ current->exec_file->f_path.mnt) :
-+ curr->filename, curr->filename,
-+ NIPQUAD(ip_addr), ip_port, type,
-+ sk->sk_protocol, mode, NIPQUAD(current->signal->curr_ip));
-+ return 0;
-+ }
-+
-+ for (i = 0; i < curr->ip_num; i++) {
-+ ip = *(curr->ips + i);
-+ if (ip->iface != NULL) {
-+ strncpy(iface, ip->iface, IFNAMSIZ - 1);
-+ p = strchr(iface, ':');
-+ if (p != NULL)
-+ *p = '\0';
-+ dev = dev_get_by_name(sock_net(sk), iface);
-+ if (dev == NULL)
-+ continue;
-+ idev = in_dev_get(dev);
-+ if (idev == NULL) {
-+ dev_put(dev);
-+ continue;
-+ }
-+ rcu_read_lock();
-+ for_ifa(idev) {
-+ if (!strcmp(ip->iface, ifa->ifa_label)) {
-+ our_addr = ifa->ifa_address;
-+ our_netmask = 0xffffffff;
-+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
-+ if (ret == 1) {
-+ rcu_read_unlock();
-+ in_dev_put(idev);
-+ dev_put(dev);
-+ return 0;
-+ } else if (ret == 2) {
-+ rcu_read_unlock();
-+ in_dev_put(idev);
-+ dev_put(dev);
-+ goto denied;
-+ }
-+ }
-+ } endfor_ifa(idev);
-+ rcu_read_unlock();
-+ in_dev_put(idev);
-+ dev_put(dev);
-+ } else {
-+ our_addr = ip->addr;
-+ our_netmask = ip->netmask;
-+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
-+ if (ret == 1)
-+ return 0;
-+ else if (ret == 2)
-+ goto denied;
-+ }
-+ }
-+
-+denied:
-+ if (mode == GR_BIND)
-+ gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, NIPQUAD(ip_addr), ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
-+ else if (mode == GR_CONNECT)
-+ gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, NIPQUAD(ip_addr), ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
-+
-+ return -EACCES;
-+}
-+
-+int
-+gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
-+{
-+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
-+}
-+
-+int
-+gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
-+{
-+ return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
-+}
-+
-+int gr_search_listen(struct socket *sock)
-+{
-+ struct sock *sk = sock->sk;
-+ struct sockaddr_in addr;
-+
-+ addr.sin_addr.s_addr = inet_sk(sk)->saddr;
-+ addr.sin_port = inet_sk(sk)->sport;
-+
-+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
-+}
-+
-+int gr_search_accept(struct socket *sock)
-+{
-+ struct sock *sk = sock->sk;
-+ struct sockaddr_in addr;
-+
-+ addr.sin_addr.s_addr = inet_sk(sk)->saddr;
-+ addr.sin_port = inet_sk(sk)->sport;
-+
-+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
-+}
-+
-+int
-+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
-+{
-+ if (addr)
-+ return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
-+ else {
-+ struct sockaddr_in sin;
-+ const struct inet_sock *inet = inet_sk(sk);
-+
-+ sin.sin_addr.s_addr = inet->daddr;
-+ sin.sin_port = inet->dport;
-+
-+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
-+ }
-+}
-+
-+int
-+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
-+{
-+ struct sockaddr_in sin;
-+
-+ if (unlikely(skb->len < sizeof (struct udphdr)))
-+ return 0; // skip this packet
-+
-+ sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
-+ sin.sin_port = udp_hdr(skb)->source;
-+
-+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
-+}
-diff -urNp linux-2.6.28.7/grsecurity/gracl_learn.c linux-2.6.28.7/grsecurity/gracl_learn.c
---- linux-2.6.28.7/grsecurity/gracl_learn.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_learn.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,211 @@
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <linux/sched.h>
-+#include <linux/poll.h>
-+#include <linux/smp_lock.h>
-+#include <linux/string.h>
-+#include <linux/file.h>
-+#include <linux/types.h>
-+#include <linux/vmalloc.h>
-+#include <linux/grinternal.h>
-+
-+extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
-+ size_t count, loff_t *ppos);
-+extern int gr_acl_is_enabled(void);
-+
-+static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
-+static int gr_learn_attached;
-+
-+/* use a 512k buffer */
-+#define LEARN_BUFFER_SIZE (512 * 1024)
-+
-+static DEFINE_SPINLOCK(gr_learn_lock);
-+static DECLARE_MUTEX(gr_learn_user_sem);
-+
-+/* we need to maintain two buffers, so that the kernel context of grlearn
-+ uses a semaphore around the userspace copying, and the other kernel contexts
-+ use a spinlock when copying into the buffer, since they cannot sleep
-+*/
-+static char *learn_buffer;
-+static char *learn_buffer_user;
-+static int learn_buffer_len;
-+static int learn_buffer_user_len;
-+
-+static ssize_t
-+read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
-+{
-+ DECLARE_WAITQUEUE(wait, current);
-+ ssize_t retval = 0;
-+
-+ add_wait_queue(&learn_wait, &wait);
-+ set_current_state(TASK_INTERRUPTIBLE);
-+ do {
-+ down(&gr_learn_user_sem);
-+ spin_lock(&gr_learn_lock);
-+ if (learn_buffer_len)
-+ break;
-+ spin_unlock(&gr_learn_lock);
-+ up(&gr_learn_user_sem);
-+ if (file->f_flags & O_NONBLOCK) {
-+ retval = -EAGAIN;
-+ goto out;
-+ }
-+ if (signal_pending(current)) {
-+ retval = -ERESTARTSYS;
-+ goto out;
-+ }
-+
-+ schedule();
-+ } while (1);
-+
-+ memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
-+ learn_buffer_user_len = learn_buffer_len;
-+ retval = learn_buffer_len;
-+ learn_buffer_len = 0;
-+
-+ spin_unlock(&gr_learn_lock);
-+
-+ if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
-+ retval = -EFAULT;
-+
-+ up(&gr_learn_user_sem);
-+out:
-+ set_current_state(TASK_RUNNING);
-+ remove_wait_queue(&learn_wait, &wait);
-+ return retval;
-+}
-+
-+static unsigned int
-+poll_learn(struct file * file, poll_table * wait)
-+{
-+ poll_wait(file, &learn_wait, wait);
-+
-+ if (learn_buffer_len)
-+ return (POLLIN | POLLRDNORM);
-+
-+ return 0;
-+}
-+
-+void
-+gr_clear_learn_entries(void)
-+{
-+ char *tmp;
-+
-+ down(&gr_learn_user_sem);
-+ if (learn_buffer != NULL) {
-+ spin_lock(&gr_learn_lock);
-+ tmp = learn_buffer;
-+ learn_buffer = NULL;
-+ spin_unlock(&gr_learn_lock);
-+ vfree(learn_buffer);
-+ }
-+ if (learn_buffer_user != NULL) {
-+ vfree(learn_buffer_user);
-+ learn_buffer_user = NULL;
-+ }
-+ learn_buffer_len = 0;
-+ up(&gr_learn_user_sem);
-+
-+ return;
-+}
-+
-+void
-+gr_add_learn_entry(const char *fmt, ...)
-+{
-+ va_list args;
-+ unsigned int len;
-+
-+ if (!gr_learn_attached)
-+ return;
-+
-+ spin_lock(&gr_learn_lock);
-+
-+ /* leave a gap at the end so we know when it's "full" but don't have to
-+ compute the exact length of the string we're trying to append
-+ */
-+ if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
-+ spin_unlock(&gr_learn_lock);
-+ wake_up_interruptible(&learn_wait);
-+ return;
-+ }
-+ if (learn_buffer == NULL) {
-+ spin_unlock(&gr_learn_lock);
-+ return;
-+ }
-+
-+ va_start(args, fmt);
-+ len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
-+ va_end(args);
-+
-+ learn_buffer_len += len + 1;
-+
-+ spin_unlock(&gr_learn_lock);
-+ wake_up_interruptible(&learn_wait);
-+
-+ return;
-+}
-+
-+static int
-+open_learn(struct inode *inode, struct file *file)
-+{
-+ if (file->f_mode & FMODE_READ && gr_learn_attached)
-+ return -EBUSY;
-+ if (file->f_mode & FMODE_READ) {
-+ int retval = 0;
-+ down(&gr_learn_user_sem);
-+ if (learn_buffer == NULL)
-+ learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
-+ if (learn_buffer_user == NULL)
-+ learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
-+ if (learn_buffer == NULL) {
-+ retval = -ENOMEM;
-+ goto out_error;
-+ }
-+ if (learn_buffer_user == NULL) {
-+ retval = -ENOMEM;
-+ goto out_error;
-+ }
-+ learn_buffer_len = 0;
-+ learn_buffer_user_len = 0;
-+ gr_learn_attached = 1;
-+out_error:
-+ up(&gr_learn_user_sem);
-+ return retval;
-+ }
-+ return 0;
-+}
-+
-+static int
-+close_learn(struct inode *inode, struct file *file)
-+{
-+ char *tmp;
-+
-+ if (file->f_mode & FMODE_READ) {
-+ down(&gr_learn_user_sem);
-+ if (learn_buffer != NULL) {
-+ spin_lock(&gr_learn_lock);
-+ tmp = learn_buffer;
-+ learn_buffer = NULL;
-+ spin_unlock(&gr_learn_lock);
-+ vfree(tmp);
-+ }
-+ if (learn_buffer_user != NULL) {
-+ vfree(learn_buffer_user);
-+ learn_buffer_user = NULL;
-+ }
-+ learn_buffer_len = 0;
-+ learn_buffer_user_len = 0;
-+ gr_learn_attached = 0;
-+ up(&gr_learn_user_sem);
-+ }
-+
-+ return 0;
-+}
-+
-+struct file_operations grsec_fops = {
-+ .read = read_learn,
-+ .write = write_grsec_handler,
-+ .open = open_learn,
-+ .release = close_learn,
-+ .poll = poll_learn,
-+};
-diff -urNp linux-2.6.28.7/grsecurity/gracl_res.c linux-2.6.28.7/grsecurity/gracl_res.c
---- linux-2.6.28.7/grsecurity/gracl_res.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_res.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,45 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/gracl.h>
-+#include <linux/grinternal.h>
-+
-+static const char *restab_log[] = {
-+ [RLIMIT_CPU] = "RLIMIT_CPU",
-+ [RLIMIT_FSIZE] = "RLIMIT_FSIZE",
-+ [RLIMIT_DATA] = "RLIMIT_DATA",
-+ [RLIMIT_STACK] = "RLIMIT_STACK",
-+ [RLIMIT_CORE] = "RLIMIT_CORE",
-+ [RLIMIT_RSS] = "RLIMIT_RSS",
-+ [RLIMIT_NPROC] = "RLIMIT_NPROC",
-+ [RLIMIT_NOFILE] = "RLIMIT_NOFILE",
-+ [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
-+ [RLIMIT_AS] = "RLIMIT_AS",
-+ [RLIMIT_LOCKS] = "RLIMIT_LOCKS",
-+ [RLIMIT_LOCKS + 1] = "RLIMIT_CRASH"
-+};
-+
-+void
-+gr_log_resource(const struct task_struct *task,
-+ const int res, const unsigned long wanted, const int gt)
-+{
-+ if (res == RLIMIT_NPROC &&
-+ (cap_raised(task->cap_effective, CAP_SYS_ADMIN) ||
-+ cap_raised(task->cap_effective, CAP_SYS_RESOURCE)))
-+ return;
-+ else if (res == RLIMIT_MEMLOCK &&
-+ cap_raised(task->cap_effective, CAP_IPC_LOCK))
-+ return;
-+
-+ if (!gr_acl_is_enabled() && !grsec_resource_logging)
-+ return;
-+
-+ preempt_disable();
-+
-+ if (unlikely(((gt && wanted > task->signal->rlim[res].rlim_cur) ||
-+ (!gt && wanted >= task->signal->rlim[res].rlim_cur)) &&
-+ task->signal->rlim[res].rlim_cur != RLIM_INFINITY))
-+ gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], task->signal->rlim[res].rlim_cur);
-+ preempt_enable_no_resched();
-+
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/gracl_segv.c linux-2.6.28.7/grsecurity/gracl_segv.c
---- linux-2.6.28.7/grsecurity/gracl_segv.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_segv.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,304 @@
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <asm/uaccess.h>
-+#include <asm/errno.h>
-+#include <asm/mman.h>
-+#include <net/sock.h>
-+#include <linux/file.h>
-+#include <linux/fs.h>
-+#include <linux/net.h>
-+#include <linux/in.h>
-+#include <linux/smp_lock.h>
-+#include <linux/slab.h>
-+#include <linux/types.h>
-+#include <linux/sched.h>
-+#include <linux/timer.h>
-+#include <linux/gracl.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+static struct crash_uid *uid_set;
-+static unsigned short uid_used;
-+static DEFINE_SPINLOCK(gr_uid_lock);
-+extern rwlock_t gr_inode_lock;
-+extern struct acl_subject_label *
-+ lookup_acl_subj_label(const ino_t inode, const dev_t dev,
-+ struct acl_role_label *role);
-+extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
-+
-+int
-+gr_init_uidset(void)
-+{
-+ uid_set =
-+ kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
-+ uid_used = 0;
-+
-+ return uid_set ? 1 : 0;
-+}
-+
-+void
-+gr_free_uidset(void)
-+{
-+ if (uid_set)
-+ kfree(uid_set);
-+
-+ return;
-+}
-+
-+int
-+gr_find_uid(const uid_t uid)
-+{
-+ struct crash_uid *tmp = uid_set;
-+ uid_t buid;
-+ int low = 0, high = uid_used - 1, mid;
-+
-+ while (high >= low) {
-+ mid = (low + high) >> 1;
-+ buid = tmp[mid].uid;
-+ if (buid == uid)
-+ return mid;
-+ if (buid > uid)
-+ high = mid - 1;
-+ if (buid < uid)
-+ low = mid + 1;
-+ }
-+
-+ return -1;
-+}
-+
-+static __inline__ void
-+gr_insertsort(void)
-+{
-+ unsigned short i, j;
-+ struct crash_uid index;
-+
-+ for (i = 1; i < uid_used; i++) {
-+ index = uid_set[i];
-+ j = i;
-+ while ((j > 0) && uid_set[j - 1].uid > index.uid) {
-+ uid_set[j] = uid_set[j - 1];
-+ j--;
-+ }
-+ uid_set[j] = index;
-+ }
-+
-+ return;
-+}
-+
-+static __inline__ void
-+gr_insert_uid(const uid_t uid, const unsigned long expires)
-+{
-+ int loc;
-+
-+ if (uid_used == GR_UIDTABLE_MAX)
-+ return;
-+
-+ loc = gr_find_uid(uid);
-+
-+ if (loc >= 0) {
-+ uid_set[loc].expires = expires;
-+ return;
-+ }
-+
-+ uid_set[uid_used].uid = uid;
-+ uid_set[uid_used].expires = expires;
-+ uid_used++;
-+
-+ gr_insertsort();
-+
-+ return;
-+}
-+
-+void
-+gr_remove_uid(const unsigned short loc)
-+{
-+ unsigned short i;
-+
-+ for (i = loc + 1; i < uid_used; i++)
-+ uid_set[i - 1] = uid_set[i];
-+
-+ uid_used--;
-+
-+ return;
-+}
-+
-+int
-+gr_check_crash_uid(const uid_t uid)
-+{
-+ int loc;
-+ int ret = 0;
-+
-+ if (unlikely(!gr_acl_is_enabled()))
-+ return 0;
-+
-+ spin_lock(&gr_uid_lock);
-+ loc = gr_find_uid(uid);
-+
-+ if (loc < 0)
-+ goto out_unlock;
-+
-+ if (time_before_eq(uid_set[loc].expires, get_seconds()))
-+ gr_remove_uid(loc);
-+ else
-+ ret = 1;
-+
-+out_unlock:
-+ spin_unlock(&gr_uid_lock);
-+ return ret;
-+}
-+
-+static __inline__ int
-+proc_is_setxid(const struct task_struct *task)
-+{
-+ if (task->uid != task->euid || task->uid != task->suid ||
-+ task->uid != task->fsuid)
-+ return 1;
-+ if (task->gid != task->egid || task->gid != task->sgid ||
-+ task->gid != task->fsgid)
-+ return 1;
-+
-+ return 0;
-+}
-+static __inline__ int
-+gr_fake_force_sig(int sig, struct task_struct *t)
-+{
-+ unsigned long int flags;
-+ int ret, blocked, ignored;
-+ struct k_sigaction *action;
-+
-+ spin_lock_irqsave(&t->sighand->siglock, flags);
-+ action = &t->sighand->action[sig-1];
-+ ignored = action->sa.sa_handler == SIG_IGN;
-+ blocked = sigismember(&t->blocked, sig);
-+ if (blocked || ignored) {
-+ action->sa.sa_handler = SIG_DFL;
-+ if (blocked) {
-+ sigdelset(&t->blocked, sig);
-+ recalc_sigpending_and_wake(t);
-+ }
-+ }
-+ if (action->sa.sa_handler == SIG_DFL)
-+ t->signal->flags &= ~SIGNAL_UNKILLABLE;
-+ ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
-+
-+ spin_unlock_irqrestore(&t->sighand->siglock, flags);
-+
-+ return ret;
-+}
-+
-+void
-+gr_handle_crash(struct task_struct *task, const int sig)
-+{
-+ struct acl_subject_label *curr;
-+ struct acl_subject_label *curr2;
-+ struct task_struct *tsk, *tsk2;
-+
-+ if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
-+ return;
-+
-+ if (unlikely(!gr_acl_is_enabled()))
-+ return;
-+
-+ curr = task->acl;
-+
-+ if (!(curr->resmask & (1 << GR_CRASH_RES)))
-+ return;
-+
-+ if (time_before_eq(curr->expires, get_seconds())) {
-+ curr->expires = 0;
-+ curr->crashes = 0;
-+ }
-+
-+ curr->crashes++;
-+
-+ if (!curr->expires)
-+ curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
-+
-+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
-+ time_after(curr->expires, get_seconds())) {
-+ if (task->uid && proc_is_setxid(task)) {
-+ gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
-+ spin_lock(&gr_uid_lock);
-+ gr_insert_uid(task->uid, curr->expires);
-+ spin_unlock(&gr_uid_lock);
-+ curr->expires = 0;
-+ curr->crashes = 0;
-+ read_lock(&tasklist_lock);
-+ do_each_thread(tsk2, tsk) {
-+ if (tsk != task && tsk->uid == task->uid)
-+ gr_fake_force_sig(SIGKILL, tsk);
-+ } while_each_thread(tsk2, tsk);
-+ read_unlock(&tasklist_lock);
-+ } else {
-+ gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
-+ read_lock(&tasklist_lock);
-+ do_each_thread(tsk2, tsk) {
-+ if (likely(tsk != task)) {
-+ curr2 = tsk->acl;
-+
-+ if (curr2->device == curr->device &&
-+ curr2->inode == curr->inode)
-+ gr_fake_force_sig(SIGKILL, tsk);
-+ }
-+ } while_each_thread(tsk2, tsk);
-+ read_unlock(&tasklist_lock);
-+ }
-+ }
-+
-+ return;
-+}
-+
-+int
-+gr_check_crash_exec(const struct file *filp)
-+{
-+ struct acl_subject_label *curr;
-+
-+ if (unlikely(!gr_acl_is_enabled()))
-+ return 0;
-+
-+ read_lock(&gr_inode_lock);
-+ curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino,
-+ filp->f_path.dentry->d_inode->i_sb->s_dev,
-+ current->role);
-+ read_unlock(&gr_inode_lock);
-+
-+ if (!curr || !(curr->resmask & (1 << GR_CRASH_RES)) ||
-+ (!curr->crashes && !curr->expires))
-+ return 0;
-+
-+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
-+ time_after(curr->expires, get_seconds()))
-+ return 1;
-+ else if (time_before_eq(curr->expires, get_seconds())) {
-+ curr->crashes = 0;
-+ curr->expires = 0;
-+ }
-+
-+ return 0;
-+}
-+
-+void
-+gr_handle_alertkill(struct task_struct *task)
-+{
-+ struct acl_subject_label *curracl;
-+ __u32 curr_ip;
-+ struct task_struct *p, *p2;
-+
-+ if (unlikely(!gr_acl_is_enabled()))
-+ return;
-+
-+ curracl = task->acl;
-+ curr_ip = task->signal->curr_ip;
-+
-+ if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
-+ read_lock(&tasklist_lock);
-+ do_each_thread(p2, p) {
-+ if (p->signal->curr_ip == curr_ip)
-+ gr_fake_force_sig(SIGKILL, p);
-+ } while_each_thread(p2, p);
-+ read_unlock(&tasklist_lock);
-+ } else if (curracl->mode & GR_KILLPROC)
-+ gr_fake_force_sig(SIGKILL, task);
-+
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/gracl_shm.c linux-2.6.28.7/grsecurity/gracl_shm.c
---- linux-2.6.28.7/grsecurity/gracl_shm.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/gracl_shm.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,33 @@
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <linux/sched.h>
-+#include <linux/file.h>
-+#include <linux/ipc.h>
-+#include <linux/gracl.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+int
-+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
-+ const time_t shm_createtime, const uid_t cuid, const int shmid)
-+{
-+ struct task_struct *task;
-+
-+ if (!gr_acl_is_enabled())
-+ return 1;
-+
-+ task = find_task_by_vpid(shm_cprid);
-+
-+ if (unlikely(!task))
-+ task = find_task_by_vpid(shm_lapid);
-+
-+ if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) ||
-+ (task->pid == shm_lapid)) &&
-+ (task->acl->mode & GR_PROTSHM) &&
-+ (task->acl != current->acl))) {
-+ gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, cuid, shm_cprid, shmid);
-+ return 0;
-+ }
-+
-+ return 1;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_chdir.c linux-2.6.28.7/grsecurity/grsec_chdir.c
---- linux-2.6.28.7/grsecurity/grsec_chdir.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_chdir.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,19 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/fs.h>
-+#include <linux/file.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+void
-+gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
-+ if ((grsec_enable_chdir && grsec_enable_group &&
-+ in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
-+ !grsec_enable_group)) {
-+ gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
-+ }
-+#endif
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_chroot.c linux-2.6.28.7/grsecurity/grsec_chroot.c
---- linux-2.6.28.7/grsecurity/grsec_chroot.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_chroot.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,336 @@
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/sched.h>
-+#include <linux/file.h>
-+#include <linux/fs.h>
-+#include <linux/mount.h>
-+#include <linux/types.h>
-+#include <linux/pid_namespace.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+int
-+gr_handle_chroot_unix(const pid_t pid)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
-+ struct pid *spid = NULL;
-+
-+ if (unlikely(!grsec_enable_chroot_unix))
-+ return 1;
-+
-+ if (likely(!proc_is_chrooted(current)))
-+ return 1;
-+
-+ read_lock(&tasklist_lock);
-+
-+ spid = find_vpid(pid);
-+ if (spid) {
-+ struct task_struct *p;
-+ p = pid_task(spid, PIDTYPE_PID);
-+ task_lock(p);
-+ if (unlikely(!have_same_root(current, p))) {
-+ task_unlock(p);
-+ read_unlock(&tasklist_lock);
-+ gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
-+ return 0;
-+ }
-+ task_unlock(p);
-+ }
-+ read_unlock(&tasklist_lock);
-+#endif
-+ return 1;
-+}
-+
-+int
-+gr_handle_chroot_nice(void)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
-+ if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
-+ if (grsec_enable_chroot_nice && (niceval < task_nice(p))
-+ && proc_is_chrooted(current)) {
-+ gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, p->pid);
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_chroot_rawio(const struct inode *inode)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
-+ if (grsec_enable_chroot_caps && proc_is_chrooted(current) &&
-+ inode && S_ISBLK(inode->i_mode) && !capable(CAP_SYS_RAWIO))
-+ return 1;
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_pid_is_chrooted(struct task_struct *p)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
-+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
-+ return 0;
-+
-+ task_lock(p);
-+ if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
-+ !have_same_root(current, p)) {
-+ task_unlock(p);
-+ return 1;
-+ }
-+ task_unlock(p);
-+#endif
-+ return 0;
-+}
-+
-+EXPORT_SYMBOL(gr_pid_is_chrooted);
-+
-+#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
-+int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
-+{
-+ struct dentry *dentry = (struct dentry *)u_dentry;
-+ struct vfsmount *mnt = (struct vfsmount *)u_mnt;
-+ struct dentry *realroot;
-+ struct vfsmount *realrootmnt;
-+ struct dentry *currentroot;
-+ struct vfsmount *currentmnt;
-+ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper;
-+ int ret = 1;
-+
-+ read_lock(&reaper->fs->lock);
-+ realrootmnt = mntget(reaper->fs->root.mnt);
-+ realroot = dget(reaper->fs->root.dentry);
-+ read_unlock(&reaper->fs->lock);
-+
-+ read_lock(¤t->fs->lock);
-+ currentmnt = mntget(current->fs->root.mnt);
-+ currentroot = dget(current->fs->root.dentry);
-+ read_unlock(¤t->fs->lock);
-+
-+ spin_lock(&dcache_lock);
-+ for (;;) {
-+ if (unlikely((dentry == realroot && mnt == realrootmnt)
-+ || (dentry == currentroot && mnt == currentmnt)))
-+ break;
-+ if (unlikely(dentry == mnt->mnt_root || IS_ROOT(dentry))) {
-+ if (mnt->mnt_parent == mnt)
-+ break;
-+ dentry = mnt->mnt_mountpoint;
-+ mnt = mnt->mnt_parent;
-+ continue;
-+ }
-+ dentry = dentry->d_parent;
-+ }
-+ spin_unlock(&dcache_lock);
-+
-+ dput(currentroot);
-+ mntput(currentmnt);
-+
-+ /* access is outside of chroot */
-+ if (dentry == realroot && mnt == realrootmnt)
-+ ret = 0;
-+
-+ dput(realroot);
-+ mntput(realrootmnt);
-+ return ret;
-+}
-+#endif
-+
-+int
-+gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
-+ if (!grsec_enable_chroot_fchdir)
-+ return 1;
-+
-+ if (!proc_is_chrooted(current))
-+ return 1;
-+ else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
-+ return 0;
-+ }
-+#endif
-+ return 1;
-+}
-+
-+int
-+gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
-+ const time_t shm_createtime)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
-+ struct pid *pid = NULL;
-+ time_t starttime;
-+
-+ if (unlikely(!grsec_enable_chroot_shmat))
-+ return 1;
-+
-+ if (likely(!proc_is_chrooted(current)))
-+ return 1;
-+
-+ read_lock(&tasklist_lock);
-+
-+ pid = find_vpid(shm_cprid);
-+ if (pid) {
-+ struct task_struct *p;
-+ p = pid_task(pid, PIDTYPE_PID);
-+ task_lock(p);
-+ starttime = p->start_time.tv_sec;
-+ if (unlikely(!have_same_root(current, p) &&
-+ time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime))) {
-+ task_unlock(p);
-+ read_unlock(&tasklist_lock);
-+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
-+ return 0;
-+ }
-+ task_unlock(p);
-+ } else {
-+ pid = find_vpid(shm_lapid);
-+ if (pid) {
-+ struct task_struct *p;
-+ p = pid_task(pid, PIDTYPE_PID);
-+ task_lock(p);
-+ if (unlikely(!have_same_root(current, p))) {
-+ task_unlock(p);
-+ read_unlock(&tasklist_lock);
-+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
-+ return 0;
-+ }
-+ task_unlock(p);
-+ }
-+ }
-+
-+ read_unlock(&tasklist_lock);
-+#endif
-+ return 1;
-+}
-+
-+void
-+gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
-+ if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
-+ gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
-+#endif
-+ return;
-+}
-+
-+int
-+gr_handle_chroot_mknod(const struct dentry *dentry,
-+ const struct vfsmount *mnt, const int mode)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
-+ if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) &&
-+ proc_is_chrooted(current)) {
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_chroot_mount(const struct dentry *dentry,
-+ const struct vfsmount *mnt, const char *dev_name)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
-+ if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
-+ gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name, dentry, mnt);
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_chroot_pivot(void)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
-+ if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
-+ if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
-+ !gr_is_outside_chroot(dentry, mnt)) {
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+void
-+gr_handle_chroot_caps(struct task_struct *task)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
-+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
-+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
-+ task->cap_permitted =
-+ cap_drop(task->cap_permitted, chroot_caps);
-+ task->cap_inheritable =
-+ cap_drop(task->cap_inheritable, chroot_caps);
-+ task->cap_effective =
-+ cap_drop(task->cap_effective, chroot_caps);
-+ }
-+#endif
-+ return;
-+}
-+
-+int
-+gr_handle_chroot_sysctl(const int op)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
-+ if (grsec_enable_chroot_sysctl && proc_is_chrooted(current)
-+ && (op & MAY_WRITE))
-+ return -EACCES;
-+#endif
-+ return 0;
-+}
-+
-+void
-+gr_handle_chroot_chdir(struct path *path)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
-+ if (grsec_enable_chroot_chdir)
-+ set_fs_pwd(current->fs, path);
-+#endif
-+ return;
-+}
-+
-+int
-+gr_handle_chroot_chmod(const struct dentry *dentry,
-+ const struct vfsmount *mnt, const int mode)
-+{
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
-+ if (grsec_enable_chroot_chmod &&
-+ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
-+ proc_is_chrooted(current)) {
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+#ifdef CONFIG_SECURITY
-+EXPORT_SYMBOL(gr_handle_chroot_caps);
-+#endif
-diff -urNp linux-2.6.28.7/grsecurity/grsec_disabled.c linux-2.6.28.7/grsecurity/grsec_disabled.c
---- linux-2.6.28.7/grsecurity/grsec_disabled.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_disabled.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,418 @@
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/sched.h>
-+#include <linux/file.h>
-+#include <linux/fs.h>
-+#include <linux/kdev_t.h>
-+#include <linux/net.h>
-+#include <linux/in.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+#include <linux/sysctl.h>
-+
-+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
-+void
-+pax_set_initial_flags(struct linux_binprm *bprm)
-+{
-+ return;
-+}
-+#endif
-+
-+#ifdef CONFIG_SYSCTL
-+__u32
-+gr_handle_sysctl(const struct ctl_table * table, const int op)
-+{
-+ return 0;
-+}
-+#endif
-+
-+int
-+gr_acl_is_enabled(void)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_handle_rawio(const struct inode *inode)
-+{
-+ return 0;
-+}
-+
-+void
-+gr_acl_handle_psacct(struct task_struct *task, const long code)
-+{
-+ return;
-+}
-+
-+int
-+gr_handle_ptrace(struct task_struct *task, const long request)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_handle_proc_ptrace(struct task_struct *task)
-+{
-+ return 0;
-+}
-+
-+void
-+gr_learn_resource(const struct task_struct *task,
-+ const int res, const unsigned long wanted, const int gt)
-+{
-+ return;
-+}
-+
-+int
-+gr_set_acls(const int type)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_check_hidden_task(const struct task_struct *tsk)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_check_protected_task(const struct task_struct *task)
-+{
-+ return 0;
-+}
-+
-+void
-+gr_copy_label(struct task_struct *tsk)
-+{
-+ return;
-+}
-+
-+void
-+gr_set_pax_flags(struct task_struct *task)
-+{
-+ return;
-+}
-+
-+int
-+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return 0;
-+}
-+
-+void
-+gr_handle_delete(const ino_t ino, const dev_t dev)
-+{
-+ return;
-+}
-+
-+void
-+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+ return;
-+}
-+
-+void
-+gr_handle_crash(struct task_struct *task, const int sig)
-+{
-+ return;
-+}
-+
-+int
-+gr_check_crash_exec(const struct file *filp)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_check_crash_uid(const uid_t uid)
-+{
-+ return 0;
-+}
-+
-+void
-+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
-+ struct dentry *old_dentry,
-+ struct dentry *new_dentry,
-+ struct vfsmount *mnt, const __u8 replace)
-+{
-+ return;
-+}
-+
-+int
-+gr_search_socket(const int family, const int type, const int protocol)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_search_connectbind(const int mode, const struct socket *sock,
-+ const struct sockaddr_in *addr)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_task_is_capable(struct task_struct *task, const int cap)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_is_capable_nolog(const int cap)
-+{
-+ return 1;
-+}
-+
-+void
-+gr_handle_alertkill(struct task_struct *task)
-+{
-+ return;
-+}
-+
-+__u32
-+gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_hidden_file(const struct dentry * dentry,
-+ const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
-+ const int fmode)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
-+ unsigned int *vm_flags)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_truncate(const struct dentry * dentry,
-+ const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_access(const struct dentry * dentry,
-+ const struct vfsmount * mnt, const int fmode)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_fchmod(const struct dentry * dentry, const struct vfsmount * mnt,
-+ mode_t mode)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
-+ mode_t mode)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+void
-+grsecurity_init(void)
-+{
-+ return;
-+}
-+
-+__u32
-+gr_acl_handle_mknod(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt,
-+ const int mode)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_mkdir(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_symlink(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt, const char *from)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_link(const struct dentry * new_dentry,
-+ const struct dentry * parent_dentry,
-+ const struct vfsmount * parent_mnt,
-+ const struct dentry * old_dentry,
-+ const struct vfsmount * old_mnt, const char *to)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_acl_handle_rename(const struct dentry *new_dentry,
-+ const struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt,
-+ const struct dentry *old_dentry,
-+ const struct inode *old_parent_inode,
-+ const struct vfsmount *old_mnt, const char *newname)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_acl_handle_filldir(const struct file *file, const char *name,
-+ const int namelen, const ino_t ino)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
-+ const time_t shm_createtime, const uid_t cuid, const int shmid)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_search_accept(const struct socket *sock)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_search_listen(const struct socket *sock)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
-+{
-+ return 1;
-+}
-+
-+__u32
-+gr_acl_handle_creat(const struct dentry * dentry,
-+ const struct dentry * p_dentry,
-+ const struct vfsmount * p_mnt, const int fmode,
-+ const int imode)
-+{
-+ return 1;
-+}
-+
-+void
-+gr_acl_handle_exit(void)
-+{
-+ return;
-+}
-+
-+int
-+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
-+{
-+ return 1;
-+}
-+
-+void
-+gr_set_role_label(const uid_t uid, const gid_t gid)
-+{
-+ return;
-+}
-+
-+int
-+gr_acl_handle_procpidmem(const struct task_struct *task)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
-+{
-+ return 1;
-+}
-+
-+int
-+gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
-+{
-+ return 1;
-+}
-+
-+void
-+gr_set_kernel_label(struct task_struct *task)
-+{
-+ return;
-+}
-+
-+int
-+gr_check_user_change(int real, int effective, int fs)
-+{
-+ return 0;
-+}
-+
-+int
-+gr_check_group_change(int real, int effective, int fs)
-+{
-+ return 0;
-+}
-+
-+
-+EXPORT_SYMBOL(gr_task_is_capable);
-+EXPORT_SYMBOL(gr_is_capable_nolog);
-+EXPORT_SYMBOL(gr_learn_resource);
-+EXPORT_SYMBOL(gr_set_kernel_label);
-+#ifdef CONFIG_SECURITY
-+EXPORT_SYMBOL(gr_check_user_change);
-+EXPORT_SYMBOL(gr_check_group_change);
-+#endif
-diff -urNp linux-2.6.28.7/grsecurity/grsec_exec.c linux-2.6.28.7/grsecurity/grsec_exec.c
---- linux-2.6.28.7/grsecurity/grsec_exec.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_exec.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,88 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/file.h>
-+#include <linux/binfmts.h>
-+#include <linux/smp_lock.h>
-+#include <linux/fs.h>
-+#include <linux/types.h>
-+#include <linux/grdefs.h>
-+#include <linux/grinternal.h>
-+#include <linux/capability.h>
-+
-+#include <asm/uaccess.h>
-+
-+#ifdef CONFIG_GRKERNSEC_EXECLOG
-+static char gr_exec_arg_buf[132];
-+static DECLARE_MUTEX(gr_exec_arg_sem);
-+#endif
-+
-+int
-+gr_handle_nproc(void)
-+{
-+#ifdef CONFIG_GRKERNSEC_EXECVE
-+ if (grsec_enable_execve && current->user &&
-+ (atomic_read(¤t->user->processes) >
-+ current->signal->rlim[RLIMIT_NPROC].rlim_cur) &&
-+ !capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE)) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_NPROC_MSG);
-+ return -EAGAIN;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+void
-+gr_handle_exec_args(struct linux_binprm *bprm, const char __user *__user *argv)
-+{
-+#ifdef CONFIG_GRKERNSEC_EXECLOG
-+ char *grarg = gr_exec_arg_buf;
-+ unsigned int i, x, execlen = 0;
-+ char c;
-+
-+ if (!((grsec_enable_execlog && grsec_enable_group &&
-+ in_group_p(grsec_audit_gid))
-+ || (grsec_enable_execlog && !grsec_enable_group)))
-+ return;
-+
-+ down(&gr_exec_arg_sem);
-+ memset(grarg, 0, sizeof(gr_exec_arg_buf));
-+
-+ if (unlikely(argv == NULL))
-+ goto log;
-+
-+ for (i = 0; i < bprm->argc && execlen < 128; i++) {
-+ const char __user *p;
-+ unsigned int len;
-+
-+ if (copy_from_user(&p, argv + i, sizeof(p)))
-+ goto log;
-+ if (!p)
-+ goto log;
-+ len = strnlen_user(p, 128 - execlen);
-+ if (len > 128 - execlen)
-+ len = 128 - execlen;
-+ else if (len > 0)
-+ len--;
-+ if (copy_from_user(grarg + execlen, p, len))
-+ goto log;
-+
-+ /* rewrite unprintable characters */
-+ for (x = 0; x < len; x++) {
-+ c = *(grarg + execlen + x);
-+ if (c < 32 || c > 126)
-+ *(grarg + execlen + x) = ' ';
-+ }
-+
-+ execlen += len;
-+ *(grarg + execlen) = ' ';
-+ *(grarg + execlen + 1) = '\0';
-+ execlen++;
-+ }
-+
-+ log:
-+ gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
-+ bprm->file->f_path.mnt, grarg);
-+ up(&gr_exec_arg_sem);
-+#endif
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_fifo.c linux-2.6.28.7/grsecurity/grsec_fifo.c
---- linux-2.6.28.7/grsecurity/grsec_fifo.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_fifo.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,22 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/fs.h>
-+#include <linux/file.h>
-+#include <linux/grinternal.h>
-+
-+int
-+gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
-+ const struct dentry *dir, const int flag, const int acc_mode)
-+{
-+#ifdef CONFIG_GRKERNSEC_FIFO
-+ if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
-+ !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
-+ (dentry->d_inode->i_uid != dir->d_inode->i_uid) &&
-+ (current->fsuid != dentry->d_inode->i_uid)) {
-+ if (!generic_permission(dentry->d_inode, acc_mode, NULL))
-+ gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, dentry->d_inode->i_uid, dentry->d_inode->i_gid);
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_fork.c linux-2.6.28.7/grsecurity/grsec_fork.c
---- linux-2.6.28.7/grsecurity/grsec_fork.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_fork.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,15 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+#include <linux/errno.h>
-+
-+void
-+gr_log_forkfail(const int retval)
-+{
-+#ifdef CONFIG_GRKERNSEC_FORKFAIL
-+ if (grsec_enable_forkfail && retval != -ERESTARTNOINTR)
-+ gr_log_int(GR_DONT_AUDIT, GR_FAILFORK_MSG, retval);
-+#endif
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_init.c linux-2.6.28.7/grsecurity/grsec_init.c
---- linux-2.6.28.7/grsecurity/grsec_init.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_init.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,230 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/mm.h>
-+#include <linux/smp_lock.h>
-+#include <linux/gracl.h>
-+#include <linux/slab.h>
-+#include <linux/vmalloc.h>
-+#include <linux/percpu.h>
-+
-+int grsec_enable_link;
-+int grsec_enable_dmesg;
-+int grsec_enable_fifo;
-+int grsec_enable_execve;
-+int grsec_enable_execlog;
-+int grsec_enable_signal;
-+int grsec_enable_forkfail;
-+int grsec_enable_time;
-+int grsec_enable_audit_textrel;
-+int grsec_enable_group;
-+int grsec_audit_gid;
-+int grsec_enable_chdir;
-+int grsec_enable_audit_ipc;
-+int grsec_enable_mount;
-+int grsec_enable_chroot_findtask;
-+int grsec_enable_chroot_mount;
-+int grsec_enable_chroot_shmat;
-+int grsec_enable_chroot_fchdir;
-+int grsec_enable_chroot_double;
-+int grsec_enable_chroot_pivot;
-+int grsec_enable_chroot_chdir;
-+int grsec_enable_chroot_chmod;
-+int grsec_enable_chroot_mknod;
-+int grsec_enable_chroot_nice;
-+int grsec_enable_chroot_execlog;
-+int grsec_enable_chroot_caps;
-+int grsec_enable_chroot_sysctl;
-+int grsec_enable_chroot_unix;
-+int grsec_enable_tpe;
-+int grsec_tpe_gid;
-+int grsec_enable_tpe_all;
-+int grsec_enable_socket_all;
-+int grsec_socket_all_gid;
-+int grsec_enable_socket_client;
-+int grsec_socket_client_gid;
-+int grsec_enable_socket_server;
-+int grsec_socket_server_gid;
-+int grsec_resource_logging;
-+int grsec_lock;
-+
-+DEFINE_SPINLOCK(grsec_alert_lock);
-+unsigned long grsec_alert_wtime = 0;
-+unsigned long grsec_alert_fyet = 0;
-+
-+DEFINE_SPINLOCK(grsec_audit_lock);
-+
-+DEFINE_RWLOCK(grsec_exec_file_lock);
-+
-+char *gr_shared_page[4];
-+
-+char *gr_alert_log_fmt;
-+char *gr_audit_log_fmt;
-+char *gr_alert_log_buf;
-+char *gr_audit_log_buf;
-+
-+extern struct gr_arg *gr_usermode;
-+extern unsigned char *gr_system_salt;
-+extern unsigned char *gr_system_sum;
-+
-+void
-+grsecurity_init(void)
-+{
-+ int j;
-+ /* create the per-cpu shared pages */
-+
-+#ifdef CONFIG_X86
-+ memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
-+#endif
-+
-+ for (j = 0; j < 4; j++) {
-+ gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE);
-+ if (gr_shared_page[j] == NULL) {
-+ panic("Unable to allocate grsecurity shared page");
-+ return;
-+ }
-+ }
-+
-+ /* allocate log buffers */
-+ gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
-+ if (!gr_alert_log_fmt) {
-+ panic("Unable to allocate grsecurity alert log format buffer");
-+ return;
-+ }
-+ gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
-+ if (!gr_audit_log_fmt) {
-+ panic("Unable to allocate grsecurity audit log format buffer");
-+ return;
-+ }
-+ gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
-+ if (!gr_alert_log_buf) {
-+ panic("Unable to allocate grsecurity alert log buffer");
-+ return;
-+ }
-+ gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
-+ if (!gr_audit_log_buf) {
-+ panic("Unable to allocate grsecurity audit log buffer");
-+ return;
-+ }
-+
-+ /* allocate memory for authentication structure */
-+ gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
-+ gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
-+ gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
-+
-+ if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
-+ panic("Unable to allocate grsecurity authentication structure");
-+ return;
-+ }
-+
-+#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
-+#ifndef CONFIG_GRKERNSEC_SYSCTL
-+ grsec_lock = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
-+ grsec_enable_audit_textrel = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
-+ grsec_enable_group = 1;
-+ grsec_audit_gid = CONFIG_GRKERNSEC_AUDIT_GID;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
-+ grsec_enable_chdir = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ grsec_enable_audit_ipc = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
-+ grsec_enable_mount = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_LINK
-+ grsec_enable_link = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_DMESG
-+ grsec_enable_dmesg = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_FIFO
-+ grsec_enable_fifo = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_EXECVE
-+ grsec_enable_execve = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_EXECLOG
-+ grsec_enable_execlog = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SIGNAL
-+ grsec_enable_signal = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_FORKFAIL
-+ grsec_enable_forkfail = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_TIME
-+ grsec_enable_time = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_RESLOG
-+ grsec_resource_logging = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
-+ grsec_enable_chroot_findtask = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
-+ grsec_enable_chroot_unix = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
-+ grsec_enable_chroot_mount = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
-+ grsec_enable_chroot_fchdir = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
-+ grsec_enable_chroot_shmat = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
-+ grsec_enable_chroot_double = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
-+ grsec_enable_chroot_pivot = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
-+ grsec_enable_chroot_chdir = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
-+ grsec_enable_chroot_chmod = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
-+ grsec_enable_chroot_mknod = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
-+ grsec_enable_chroot_nice = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
-+ grsec_enable_chroot_execlog = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
-+ grsec_enable_chroot_caps = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
-+ grsec_enable_chroot_sysctl = 1;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_TPE
-+ grsec_enable_tpe = 1;
-+ grsec_tpe_gid = CONFIG_GRKERNSEC_TPE_GID;
-+#ifdef CONFIG_GRKERNSEC_TPE_ALL
-+ grsec_enable_tpe_all = 1;
-+#endif
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
-+ grsec_enable_socket_all = 1;
-+ grsec_socket_all_gid = CONFIG_GRKERNSEC_SOCKET_ALL_GID;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
-+ grsec_enable_socket_client = 1;
-+ grsec_socket_client_gid = CONFIG_GRKERNSEC_SOCKET_CLIENT_GID;
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
-+ grsec_enable_socket_server = 1;
-+ grsec_socket_server_gid = CONFIG_GRKERNSEC_SOCKET_SERVER_GID;
-+#endif
-+#endif
-+
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_ipc.c linux-2.6.28.7/grsecurity/grsec_ipc.c
---- linux-2.6.28.7/grsecurity/grsec_ipc.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_ipc.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,81 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/types.h>
-+#include <linux/ipc.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+void
-+gr_log_msgget(const int ret, const int msgflg)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ if (((grsec_enable_group && in_group_p(grsec_audit_gid) &&
-+ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc &&
-+ !grsec_enable_group)) && (ret >= 0)
-+ && (msgflg & IPC_CREAT))
-+ gr_log_noargs(GR_DO_AUDIT, GR_MSGQ_AUDIT_MSG);
-+#endif
-+ return;
-+}
-+
-+void
-+gr_log_msgrm(const uid_t uid, const uid_t cuid)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ if ((grsec_enable_group && in_group_p(grsec_audit_gid) &&
-+ grsec_enable_audit_ipc) ||
-+ (grsec_enable_audit_ipc && !grsec_enable_group))
-+ gr_log_int_int(GR_DO_AUDIT, GR_MSGQR_AUDIT_MSG, uid, cuid);
-+#endif
-+ return;
-+}
-+
-+void
-+gr_log_semget(const int err, const int semflg)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ if (((grsec_enable_group && in_group_p(grsec_audit_gid) &&
-+ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc &&
-+ !grsec_enable_group)) && (err >= 0)
-+ && (semflg & IPC_CREAT))
-+ gr_log_noargs(GR_DO_AUDIT, GR_SEM_AUDIT_MSG);
-+#endif
-+ return;
-+}
-+
-+void
-+gr_log_semrm(const uid_t uid, const uid_t cuid)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ if ((grsec_enable_group && in_group_p(grsec_audit_gid) &&
-+ grsec_enable_audit_ipc) ||
-+ (grsec_enable_audit_ipc && !grsec_enable_group))
-+ gr_log_int_int(GR_DO_AUDIT, GR_SEMR_AUDIT_MSG, uid, cuid);
-+#endif
-+ return;
-+}
-+
-+void
-+gr_log_shmget(const int err, const int shmflg, const size_t size)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ if (((grsec_enable_group && in_group_p(grsec_audit_gid) &&
-+ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc &&
-+ !grsec_enable_group)) && (err >= 0)
-+ && (shmflg & IPC_CREAT))
-+ gr_log_int(GR_DO_AUDIT, GR_SHM_AUDIT_MSG, size);
-+#endif
-+ return;
-+}
-+
-+void
-+gr_log_shmrm(const uid_t uid, const uid_t cuid)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ if ((grsec_enable_group && in_group_p(grsec_audit_gid) &&
-+ grsec_enable_audit_ipc) ||
-+ (grsec_enable_audit_ipc && !grsec_enable_group))
-+ gr_log_int_int(GR_DO_AUDIT, GR_SHMR_AUDIT_MSG, uid, cuid);
-+#endif
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_link.c linux-2.6.28.7/grsecurity/grsec_link.c
---- linux-2.6.28.7/grsecurity/grsec_link.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_link.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,39 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/fs.h>
-+#include <linux/file.h>
-+#include <linux/grinternal.h>
-+
-+int
-+gr_handle_follow_link(const struct inode *parent,
-+ const struct inode *inode,
-+ const struct dentry *dentry, const struct vfsmount *mnt)
-+{
-+#ifdef CONFIG_GRKERNSEC_LINK
-+ if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
-+ (parent->i_mode & S_ISVTX) && (parent->i_uid != inode->i_uid) &&
-+ (parent->i_mode & S_IWOTH) && (current->fsuid != inode->i_uid)) {
-+ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_hardlink(const struct dentry *dentry,
-+ const struct vfsmount *mnt,
-+ struct inode *inode, const int mode, const char *to)
-+{
-+#ifdef CONFIG_GRKERNSEC_LINK
-+ if (grsec_enable_link && current->fsuid != inode->i_uid &&
-+ (!S_ISREG(mode) || (mode & S_ISUID) ||
-+ ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) ||
-+ (generic_permission(inode, MAY_READ | MAY_WRITE, NULL))) &&
-+ !capable(CAP_FOWNER) && current->uid) {
-+ gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to);
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_log.c linux-2.6.28.7/grsecurity/grsec_log.c
---- linux-2.6.28.7/grsecurity/grsec_log.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_log.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,269 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/file.h>
-+#include <linux/tty.h>
-+#include <linux/fs.h>
-+#include <linux/grinternal.h>
-+
-+#define BEGIN_LOCKS(x) \
-+ read_lock(&tasklist_lock); \
-+ read_lock(&grsec_exec_file_lock); \
-+ if (x != GR_DO_AUDIT) \
-+ spin_lock(&grsec_alert_lock); \
-+ else \
-+ spin_lock(&grsec_audit_lock)
-+
-+#define END_LOCKS(x) \
-+ if (x != GR_DO_AUDIT) \
-+ spin_unlock(&grsec_alert_lock); \
-+ else \
-+ spin_unlock(&grsec_audit_lock); \
-+ read_unlock(&grsec_exec_file_lock); \
-+ read_unlock(&tasklist_lock); \
-+ if (x == GR_DONT_AUDIT) \
-+ gr_handle_alertkill(current)
-+
-+enum {
-+ FLOODING,
-+ NO_FLOODING
-+};
-+
-+extern char *gr_alert_log_fmt;
-+extern char *gr_audit_log_fmt;
-+extern char *gr_alert_log_buf;
-+extern char *gr_audit_log_buf;
-+
-+static int gr_log_start(int audit)
-+{
-+ char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
-+ char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
-+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
-+
-+ if (audit == GR_DO_AUDIT)
-+ goto set_fmt;
-+
-+ if (!grsec_alert_wtime || jiffies - grsec_alert_wtime > CONFIG_GRKERNSEC_FLOODTIME * HZ) {
-+ grsec_alert_wtime = jiffies;
-+ grsec_alert_fyet = 0;
-+ } else if ((jiffies - grsec_alert_wtime < CONFIG_GRKERNSEC_FLOODTIME * HZ) && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
-+ grsec_alert_fyet++;
-+ } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
-+ grsec_alert_wtime = jiffies;
-+ grsec_alert_fyet++;
-+ printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
-+ return FLOODING;
-+ } else return FLOODING;
-+
-+set_fmt:
-+ memset(buf, 0, PAGE_SIZE);
-+ if (current->signal->curr_ip && gr_acl_is_enabled()) {
-+ sprintf(fmt, "%s%s", loglevel, "grsec: From %u.%u.%u.%u: (%.64s:%c:%.950s) ");
-+ snprintf(buf, PAGE_SIZE - 1, fmt, NIPQUAD(current->signal->curr_ip), current->role->rolename, gr_roletype_to_char(), current->acl->filename);
-+ } else if (current->signal->curr_ip) {
-+ sprintf(fmt, "%s%s", loglevel, "grsec: From %u.%u.%u.%u: ");
-+ snprintf(buf, PAGE_SIZE - 1, fmt, NIPQUAD(current->signal->curr_ip));
-+ } else if (gr_acl_is_enabled()) {
-+ sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
-+ snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
-+ } else {
-+ sprintf(fmt, "%s%s", loglevel, "grsec: ");
-+ strcpy(buf, fmt);
-+ }
-+
-+ return NO_FLOODING;
-+}
-+
-+static void gr_log_middle(int audit, const char *msg, va_list ap)
-+{
-+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
-+ unsigned int len = strlen(buf);
-+
-+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
-+
-+ return;
-+}
-+
-+static void gr_log_middle_varargs(int audit, const char *msg, ...)
-+{
-+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
-+ unsigned int len = strlen(buf);
-+ va_list ap;
-+
-+ va_start(ap, msg);
-+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
-+ va_end(ap);
-+
-+ return;
-+}
-+
-+static void gr_log_end(int audit)
-+{
-+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
-+ unsigned int len = strlen(buf);
-+
-+ snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, DEFAULTSECARGS(current));
-+ printk("%s\n", buf);
-+
-+ return;
-+}
-+
-+void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
-+{
-+ int logtype;
-+ char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
-+ char *str1, *str2, *str3;
-+ int num1, num2;
-+ unsigned long ulong1, ulong2;
-+ struct dentry *dentry;
-+ struct vfsmount *mnt;
-+ struct file *file;
-+ struct task_struct *task;
-+ va_list ap;
-+
-+ BEGIN_LOCKS(audit);
-+ logtype = gr_log_start(audit);
-+ if (logtype == FLOODING) {
-+ END_LOCKS(audit);
-+ return;
-+ }
-+ va_start(ap, argtypes);
-+ switch (argtypes) {
-+ case GR_TTYSNIFF:
-+ task = va_arg(ap, struct task_struct *);
-+ gr_log_middle_varargs(audit, msg, NIPQUAD(task->signal->curr_ip), gr_task_fullpath0(task), task->comm, task->pid, gr_parent_task_fullpath0(task), task->parent->comm, task->parent->pid);
-+ break;
-+ case GR_SYSCTL_HIDDEN:
-+ str1 = va_arg(ap, char *);
-+ gr_log_middle_varargs(audit, msg, result, str1);
-+ break;
-+ case GR_RBAC:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
-+ break;
-+ case GR_RBAC_STR:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ str1 = va_arg(ap, char *);
-+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
-+ break;
-+ case GR_STR_RBAC:
-+ str1 = va_arg(ap, char *);
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
-+ break;
-+ case GR_RBAC_MODE2:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ str1 = va_arg(ap, char *);
-+ str2 = va_arg(ap, char *);
-+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
-+ break;
-+ case GR_RBAC_MODE3:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ str1 = va_arg(ap, char *);
-+ str2 = va_arg(ap, char *);
-+ str3 = va_arg(ap, char *);
-+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
-+ break;
-+ case GR_FILENAME:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
-+ break;
-+ case GR_STR_FILENAME:
-+ str1 = va_arg(ap, char *);
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
-+ break;
-+ case GR_FILENAME_STR:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ str1 = va_arg(ap, char *);
-+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
-+ break;
-+ case GR_FILENAME_TWO_INT:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ num1 = va_arg(ap, int);
-+ num2 = va_arg(ap, int);
-+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
-+ break;
-+ case GR_FILENAME_TWO_INT_STR:
-+ dentry = va_arg(ap, struct dentry *);
-+ mnt = va_arg(ap, struct vfsmount *);
-+ num1 = va_arg(ap, int);
-+ num2 = va_arg(ap, int);
-+ str1 = va_arg(ap, char *);
-+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
-+ break;
-+ case GR_TEXTREL:
-+ file = va_arg(ap, struct file *);
-+ ulong1 = va_arg(ap, unsigned long);
-+ ulong2 = va_arg(ap, unsigned long);
-+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
-+ break;
-+ case GR_PTRACE:
-+ task = va_arg(ap, struct task_struct *);
-+ gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task->pid);
-+ break;
-+ case GR_RESOURCE:
-+ task = va_arg(ap, struct task_struct *);
-+ ulong1 = va_arg(ap, unsigned long);
-+ str1 = va_arg(ap, char *);
-+ ulong2 = va_arg(ap, unsigned long);
-+ gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
-+ break;
-+ case GR_CAP:
-+ task = va_arg(ap, struct task_struct *);
-+ str1 = va_arg(ap, char *);
-+ gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
-+ break;
-+ case GR_SIG:
-+ task = va_arg(ap, struct task_struct *);
-+ num1 = va_arg(ap, int);
-+ gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath0(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
-+ break;
-+ case GR_CRASH1:
-+ task = va_arg(ap, struct task_struct *);
-+ ulong1 = va_arg(ap, unsigned long);
-+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid, task->uid, ulong1);
-+ break;
-+ case GR_CRASH2:
-+ task = va_arg(ap, struct task_struct *);
-+ ulong1 = va_arg(ap, unsigned long);
-+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid, ulong1);
-+ break;
-+ case GR_PSACCT:
-+ {
-+ unsigned int wday, cday;
-+ __u8 whr, chr;
-+ __u8 wmin, cmin;
-+ __u8 wsec, csec;
-+ char cur_tty[64] = { 0 };
-+ char parent_tty[64] = { 0 };
-+
-+ task = va_arg(ap, struct task_struct *);
-+ wday = va_arg(ap, unsigned int);
-+ cday = va_arg(ap, unsigned int);
-+ whr = va_arg(ap, int);
-+ chr = va_arg(ap, int);
-+ wmin = va_arg(ap, int);
-+ cmin = va_arg(ap, int);
-+ wsec = va_arg(ap, int);
-+ csec = va_arg(ap, int);
-+ ulong1 = va_arg(ap, unsigned long);
-+
-+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, NIPQUAD(task->signal->curr_ip), tty_name(task->signal->tty, cur_tty), task->uid, task->euid, task->gid, task->egid, wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, NIPQUAD(task->parent->signal->curr_ip), tty_name(task->parent->signal->tty, parent_tty), task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
-+ }
-+ break;
-+ default:
-+ gr_log_middle(audit, msg, ap);
-+ }
-+ va_end(ap);
-+ gr_log_end(audit);
-+ END_LOCKS(audit);
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_mem.c linux-2.6.28.7/grsecurity/grsec_mem.c
---- linux-2.6.28.7/grsecurity/grsec_mem.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_mem.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,71 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/mm.h>
-+#include <linux/mman.h>
-+#include <linux/grinternal.h>
-+
-+void
-+gr_handle_ioperm(void)
-+{
-+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
-+ return;
-+}
-+
-+void
-+gr_handle_iopl(void)
-+{
-+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
-+ return;
-+}
-+
-+void
-+gr_handle_mem_write(void)
-+{
-+ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_WRITE_MSG);
-+ return;
-+}
-+
-+void
-+gr_handle_kmem_write(void)
-+{
-+ gr_log_noargs(GR_DONT_AUDIT, GR_KMEM_MSG);
-+ return;
-+}
-+
-+void
-+gr_handle_open_port(void)
-+{
-+ gr_log_noargs(GR_DONT_AUDIT, GR_PORT_OPEN_MSG);
-+ return;
-+}
-+
-+int
-+gr_handle_mem_mmap(const unsigned long offset, struct vm_area_struct *vma)
-+{
-+ unsigned long start, end;
-+
-+ start = offset;
-+ end = start + vma->vm_end - vma->vm_start;
-+
-+ if (start > end) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_MMAP_MSG);
-+ return -EPERM;
-+ }
-+
-+ /* allowed ranges : ISA I/O BIOS */
-+ if ((start >= __pa(high_memory))
-+#ifdef CONFIG_X86
-+ || (start >= 0x000a0000 && end <= 0x00100000)
-+ || (start >= 0x00000000 && end <= 0x00001000)
-+#endif
-+ )
-+ return 0;
-+
-+ if (vma->vm_flags & VM_WRITE) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_MMAP_MSG);
-+ return -EPERM;
-+ } else
-+ vma->vm_flags &= ~VM_MAYWRITE;
-+
-+ return 0;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_mount.c linux-2.6.28.7/grsecurity/grsec_mount.c
---- linux-2.6.28.7/grsecurity/grsec_mount.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_mount.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,34 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+void
-+gr_log_remount(const char *devname, const int retval)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
-+ if (grsec_enable_mount && (retval >= 0))
-+ gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
-+#endif
-+ return;
-+}
-+
-+void
-+gr_log_unmount(const char *devname, const int retval)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
-+ if (grsec_enable_mount && (retval >= 0))
-+ gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
-+#endif
-+ return;
-+}
-+
-+void
-+gr_log_mount(const char *from, const char *to, const int retval)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
-+ if (grsec_enable_mount && (retval >= 0))
-+ gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from, to);
-+#endif
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_sig.c linux-2.6.28.7/grsecurity/grsec_sig.c
---- linux-2.6.28.7/grsecurity/grsec_sig.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_sig.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,58 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/delay.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+void
-+gr_log_signal(const int sig, const struct task_struct *t)
-+{
-+#ifdef CONFIG_GRKERNSEC_SIGNAL
-+ if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
-+ (sig == SIGABRT) || (sig == SIGBUS))) {
-+ if (t->pid == current->pid) {
-+ gr_log_int(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, sig);
-+ } else {
-+ gr_log_sig(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
-+ }
-+ }
-+#endif
-+ return;
-+}
-+
-+int
-+gr_handle_signal(const struct task_struct *p, const int sig)
-+{
-+#ifdef CONFIG_GRKERNSEC
-+ if (current->pid > 1 && gr_check_protected_task(p)) {
-+ gr_log_sig(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
-+ return -EPERM;
-+ } else if (gr_pid_is_chrooted((struct task_struct *)p)) {
-+ return -EPERM;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+void gr_handle_brute_attach(struct task_struct *p)
-+{
-+#ifdef CONFIG_GRKERNSEC_BRUTE
-+ read_lock(&tasklist_lock);
-+ read_lock(&grsec_exec_file_lock);
-+ if (p->parent && p->parent->exec_file == p->exec_file)
-+ p->parent->brute = 1;
-+ read_unlock(&grsec_exec_file_lock);
-+ read_unlock(&tasklist_lock);
-+#endif
-+ return;
-+}
-+
-+void gr_handle_brute_check(void)
-+{
-+#ifdef CONFIG_GRKERNSEC_BRUTE
-+ if (current->brute)
-+ msleep(30 * 1000);
-+#endif
-+ return;
-+}
-+
-diff -urNp linux-2.6.28.7/grsecurity/grsec_sock.c linux-2.6.28.7/grsecurity/grsec_sock.c
---- linux-2.6.28.7/grsecurity/grsec_sock.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_sock.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,274 @@
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/sched.h>
-+#include <linux/file.h>
-+#include <linux/net.h>
-+#include <linux/in.h>
-+#include <linux/ip.h>
-+#include <net/sock.h>
-+#include <net/inet_sock.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+#include <linux/gracl.h>
-+
-+#if defined(CONFIG_IP_NF_MATCH_STEALTH_MODULE)
-+extern struct sock *udp_v4_lookup(u32 saddr, u16 sport, u32 daddr, u16 dport, int dif);
-+EXPORT_SYMBOL(udp_v4_lookup);
-+#endif
-+
-+kernel_cap_t gr_cap_rtnetlink(struct sock *sock);
-+EXPORT_SYMBOL(gr_cap_rtnetlink);
-+
-+extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
-+extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
-+
-+EXPORT_SYMBOL(gr_search_udp_recvmsg);
-+EXPORT_SYMBOL(gr_search_udp_sendmsg);
-+
-+#ifdef CONFIG_UNIX_MODULE
-+EXPORT_SYMBOL(gr_acl_handle_unix);
-+EXPORT_SYMBOL(gr_acl_handle_mknod);
-+EXPORT_SYMBOL(gr_handle_chroot_unix);
-+EXPORT_SYMBOL(gr_handle_create);
-+#endif
-+
-+#ifdef CONFIG_GRKERNSEC
-+#define gr_conn_table_size 32749
-+struct conn_table_entry {
-+ struct conn_table_entry *next;
-+ struct signal_struct *sig;
-+};
-+
-+struct conn_table_entry *gr_conn_table[gr_conn_table_size];
-+DEFINE_SPINLOCK(gr_conn_table_lock);
-+
-+extern const char * gr_socktype_to_name(unsigned char type);
-+extern const char * gr_proto_to_name(unsigned char proto);
-+
-+static __inline__ int
-+conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
-+{
-+ return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
-+}
-+
-+static __inline__ int
-+conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr,
-+ __u16 sport, __u16 dport)
-+{
-+ if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
-+ sig->gr_sport == sport && sig->gr_dport == dport))
-+ return 1;
-+ else
-+ return 0;
-+}
-+
-+static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
-+{
-+ struct conn_table_entry **match;
-+ unsigned int index;
-+
-+ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
-+ sig->gr_sport, sig->gr_dport,
-+ gr_conn_table_size);
-+
-+ newent->sig = sig;
-+
-+ match = &gr_conn_table[index];
-+ newent->next = *match;
-+ *match = newent;
-+
-+ return;
-+}
-+
-+static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
-+{
-+ struct conn_table_entry *match, *last = NULL;
-+ unsigned int index;
-+
-+ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
-+ sig->gr_sport, sig->gr_dport,
-+ gr_conn_table_size);
-+
-+ match = gr_conn_table[index];
-+ while (match && !conn_match(match->sig,
-+ sig->gr_saddr, sig->gr_daddr, sig->gr_sport,
-+ sig->gr_dport)) {
-+ last = match;
-+ match = match->next;
-+ }
-+
-+ if (match) {
-+ if (last)
-+ last->next = match->next;
-+ else
-+ gr_conn_table[index] = NULL;
-+ kfree(match);
-+ }
-+
-+ return;
-+}
-+
-+static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
-+ __u16 sport, __u16 dport)
-+{
-+ struct conn_table_entry *match;
-+ unsigned int index;
-+
-+ index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
-+
-+ match = gr_conn_table[index];
-+ while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
-+ match = match->next;
-+
-+ if (match)
-+ return match->sig;
-+ else
-+ return NULL;
-+}
-+
-+#endif
-+
-+void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet)
-+{
-+#ifdef CONFIG_GRKERNSEC
-+ struct signal_struct *sig = task->signal;
-+ struct conn_table_entry *newent;
-+
-+ newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
-+ if (newent == NULL)
-+ return;
-+ /* no bh lock needed since we are called with bh disabled */
-+ spin_lock(&gr_conn_table_lock);
-+ gr_del_task_from_ip_table_nolock(sig);
-+ sig->gr_saddr = inet->rcv_saddr;
-+ sig->gr_daddr = inet->daddr;
-+ sig->gr_sport = inet->sport;
-+ sig->gr_dport = inet->dport;
-+ gr_add_to_task_ip_table_nolock(sig, newent);
-+ spin_unlock(&gr_conn_table_lock);
-+#endif
-+ return;
-+}
-+
-+void gr_del_task_from_ip_table(struct task_struct *task)
-+{
-+#ifdef CONFIG_GRKERNSEC
-+ spin_lock_bh(&gr_conn_table_lock);
-+ gr_del_task_from_ip_table_nolock(task->signal);
-+ spin_unlock_bh(&gr_conn_table_lock);
-+#endif
-+ return;
-+}
-+
-+void
-+gr_attach_curr_ip(const struct sock *sk)
-+{
-+#ifdef CONFIG_GRKERNSEC
-+ struct signal_struct *p, *set;
-+ const struct inet_sock *inet = inet_sk(sk);
-+
-+ if (unlikely(sk->sk_protocol != IPPROTO_TCP))
-+ return;
-+
-+ set = current->signal;
-+
-+ spin_lock_bh(&gr_conn_table_lock);
-+ p = gr_lookup_task_ip_table(inet->daddr, inet->rcv_saddr,
-+ inet->dport, inet->sport);
-+ if (unlikely(p != NULL)) {
-+ set->curr_ip = p->curr_ip;
-+ set->used_accept = 1;
-+ gr_del_task_from_ip_table_nolock(p);
-+ spin_unlock_bh(&gr_conn_table_lock);
-+ return;
-+ }
-+ spin_unlock_bh(&gr_conn_table_lock);
-+
-+ set->curr_ip = inet->daddr;
-+ set->used_accept = 1;
-+#endif
-+ return;
-+}
-+
-+int
-+gr_handle_sock_all(const int family, const int type, const int protocol)
-+{
-+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
-+ if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
-+ (family != AF_UNIX) && (family != AF_LOCAL)) {
-+ gr_log_int_str2(GR_DONT_AUDIT, GR_SOCK2_MSG, family, gr_socktype_to_name(type), gr_proto_to_name(protocol));
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_sock_server(const struct sockaddr *sck)
-+{
-+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
-+ if (grsec_enable_socket_server &&
-+ in_group_p(grsec_socket_server_gid) &&
-+ sck && (sck->sa_family != AF_UNIX) &&
-+ (sck->sa_family != AF_LOCAL)) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_sock_server_other(const struct sock *sck)
-+{
-+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
-+ if (grsec_enable_socket_server &&
-+ in_group_p(grsec_socket_server_gid) &&
-+ sck && (sck->sk_family != AF_UNIX) &&
-+ (sck->sk_family != AF_LOCAL)) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+int
-+gr_handle_sock_client(const struct sockaddr *sck)
-+{
-+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
-+ if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
-+ sck && (sck->sa_family != AF_UNIX) &&
-+ (sck->sa_family != AF_LOCAL)) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+kernel_cap_t
-+gr_cap_rtnetlink(struct sock *sock)
-+{
-+#ifdef CONFIG_GRKERNSEC
-+ if (!gr_acl_is_enabled())
-+ return current->cap_effective;
-+ else if (sock->sk_protocol == NETLINK_ISCSI &&
-+ cap_raised(current->cap_effective, CAP_SYS_ADMIN) &&
-+ gr_task_is_capable(current, CAP_SYS_ADMIN))
-+ return current->cap_effective;
-+ else if (sock->sk_protocol == NETLINK_AUDIT &&
-+ cap_raised(current->cap_effective, CAP_AUDIT_WRITE) &&
-+ gr_task_is_capable(current, CAP_AUDIT_WRITE) &&
-+ cap_raised(current->cap_effective, CAP_AUDIT_CONTROL) &&
-+ gr_task_is_capable(current, CAP_AUDIT_CONTROL))
-+ return current->cap_effective;
-+ else if (cap_raised(current->cap_effective, CAP_NET_ADMIN) &&
-+ gr_task_is_capable(current, CAP_NET_ADMIN))
-+ return current->cap_effective;
-+ else
-+ return __cap_empty_set;
-+#else
-+ return current->cap_effective;
-+#endif
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_sysctl.c linux-2.6.28.7/grsecurity/grsec_sysctl.c
---- linux-2.6.28.7/grsecurity/grsec_sysctl.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_sysctl.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,435 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/sysctl.h>
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+#ifdef CONFIG_GRKERNSEC_MODSTOP
-+int grsec_modstop;
-+#endif
-+
-+int
-+gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
-+{
-+#ifdef CONFIG_GRKERNSEC_SYSCTL
-+ if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
-+ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
-+ return -EACCES;
-+ }
-+#endif
-+#ifdef CONFIG_GRKERNSEC_MODSTOP
-+ if (!strcmp(dirname, "grsecurity") && !strcmp(name, "disable_modules") &&
-+ grsec_modstop && (op & MAY_WRITE)) {
-+ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
-+ return -EACCES;
-+ }
-+#endif
-+ return 0;
-+}
-+
-+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_MODSTOP)
-+ctl_table grsecurity_table[] = {
-+#ifdef CONFIG_GRKERNSEC_SYSCTL
-+#ifdef CONFIG_GRKERNSEC_LINK
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "linking_restrictions",
-+ .data = &grsec_enable_link,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_FIFO
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "fifo_restrictions",
-+ .data = &grsec_enable_fifo,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_EXECVE
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "execve_limiting",
-+ .data = &grsec_enable_execve,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_EXECLOG
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "exec_logging",
-+ .data = &grsec_enable_execlog,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SIGNAL
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "signal_logging",
-+ .data = &grsec_enable_signal,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_FORKFAIL
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "forkfail_logging",
-+ .data = &grsec_enable_forkfail,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_TIME
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "timechange_logging",
-+ .data = &grsec_enable_time,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_shmat",
-+ .data = &grsec_enable_chroot_shmat,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_unix",
-+ .data = &grsec_enable_chroot_unix,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_mount",
-+ .data = &grsec_enable_chroot_mount,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_fchdir",
-+ .data = &grsec_enable_chroot_fchdir,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_chroot",
-+ .data = &grsec_enable_chroot_double,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_pivot",
-+ .data = &grsec_enable_chroot_pivot,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_enforce_chdir",
-+ .data = &grsec_enable_chroot_chdir,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_chmod",
-+ .data = &grsec_enable_chroot_chmod,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_mknod",
-+ .data = &grsec_enable_chroot_mknod,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_restrict_nice",
-+ .data = &grsec_enable_chroot_nice,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_execlog",
-+ .data = &grsec_enable_chroot_execlog,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_caps",
-+ .data = &grsec_enable_chroot_caps,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_deny_sysctl",
-+ .data = &grsec_enable_chroot_sysctl,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_TPE
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "tpe",
-+ .data = &grsec_enable_tpe,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "tpe_gid",
-+ .data = &grsec_tpe_gid,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_TPE_ALL
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "tpe_restrict_all",
-+ .data = &grsec_enable_tpe_all,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "socket_all",
-+ .data = &grsec_enable_socket_all,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "socket_all_gid",
-+ .data = &grsec_socket_all_gid,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "socket_client",
-+ .data = &grsec_enable_socket_client,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "socket_client_gid",
-+ .data = &grsec_socket_client_gid,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "socket_server",
-+ .data = &grsec_enable_socket_server,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "socket_server_gid",
-+ .data = &grsec_socket_server_gid,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "audit_group",
-+ .data = &grsec_enable_group,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "audit_gid",
-+ .data = &grsec_audit_gid,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "audit_chdir",
-+ .data = &grsec_enable_chdir,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "audit_mount",
-+ .data = &grsec_enable_mount,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "audit_ipc",
-+ .data = &grsec_enable_audit_ipc,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "audit_textrel",
-+ .data = &grsec_enable_audit_textrel,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_DMESG
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "dmesg",
-+ .data = &grsec_enable_dmesg,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "chroot_findtask",
-+ .data = &grsec_enable_chroot_findtask,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_RESLOG
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "resource_logging",
-+ .data = &grsec_resource_logging,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "grsec_lock",
-+ .data = &grsec_lock,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+#ifdef CONFIG_GRKERNSEC_MODSTOP
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "disable_modules",
-+ .data = &grsec_modstop,
-+ .maxlen = sizeof(int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+#endif
-+ { .ctl_name = 0 }
-+};
-+#endif
-+
-+int gr_check_modstop(void)
-+{
-+#ifdef CONFIG_GRKERNSEC_MODSTOP
-+ if (grsec_modstop == 1) {
-+ gr_log_noargs(GR_DONT_AUDIT, GR_STOPMOD_MSG);
-+ return 1;
-+ }
-+#endif
-+ return 0;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_textrel.c linux-2.6.28.7/grsecurity/grsec_textrel.c
---- linux-2.6.28.7/grsecurity/grsec_textrel.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_textrel.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,16 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/mm.h>
-+#include <linux/file.h>
-+#include <linux/grinternal.h>
-+#include <linux/grsecurity.h>
-+
-+void
-+gr_log_textrel(struct vm_area_struct * vma)
-+{
-+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
-+ if (grsec_enable_audit_textrel)
-+ gr_log_textrel_ulong_ulong(GR_DO_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
-+#endif
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_time.c linux-2.6.28.7/grsecurity/grsec_time.c
---- linux-2.6.28.7/grsecurity/grsec_time.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_time.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,13 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/grinternal.h>
-+
-+void
-+gr_log_timechange(void)
-+{
-+#ifdef CONFIG_GRKERNSEC_TIME
-+ if (grsec_enable_time)
-+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
-+#endif
-+ return;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsec_tpe.c linux-2.6.28.7/grsecurity/grsec_tpe.c
---- linux-2.6.28.7/grsecurity/grsec_tpe.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsec_tpe.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,37 @@
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/file.h>
-+#include <linux/fs.h>
-+#include <linux/grinternal.h>
-+
-+extern int gr_acl_tpe_check(void);
-+
-+int
-+gr_tpe_allow(const struct file *file)
-+{
-+#ifdef CONFIG_GRKERNSEC
-+ struct inode *inode = file->f_path.dentry->d_parent->d_inode;
-+
-+ if (current->uid && ((grsec_enable_tpe &&
-+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
-+ !in_group_p(grsec_tpe_gid)
-+#else
-+ in_group_p(grsec_tpe_gid)
-+#endif
-+ ) || gr_acl_tpe_check()) &&
-+ (inode->i_uid || (!inode->i_uid && ((inode->i_mode & S_IWGRP) ||
-+ (inode->i_mode & S_IWOTH))))) {
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt);
-+ return 0;
-+ }
-+#ifdef CONFIG_GRKERNSEC_TPE_ALL
-+ if (current->uid && grsec_enable_tpe && grsec_enable_tpe_all &&
-+ ((inode->i_uid && (inode->i_uid != current->uid)) ||
-+ (inode->i_mode & S_IWGRP) || (inode->i_mode & S_IWOTH))) {
-+ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt);
-+ return 0;
-+ }
-+#endif
-+#endif
-+ return 1;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/grsum.c linux-2.6.28.7/grsecurity/grsum.c
---- linux-2.6.28.7/grsecurity/grsum.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/grsum.c 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,59 @@
-+#include <linux/err.h>
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/mm.h>
-+#include <linux/scatterlist.h>
-+#include <linux/crypto.h>
-+#include <linux/gracl.h>
-+
-+
-+#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
-+#error "crypto and sha256 must be built into the kernel"
-+#endif
-+
-+int
-+chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
-+{
-+ char *p;
-+ struct crypto_hash *tfm;
-+ struct hash_desc desc;
-+ struct scatterlist sg;
-+ unsigned char temp_sum[GR_SHA_LEN];
-+ volatile int retval = 0;
-+ volatile int dummy = 0;
-+ unsigned int i;
-+
-+ tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
-+ if (IS_ERR(tfm)) {
-+ /* should never happen, since sha256 should be built in */
-+ return 1;
-+ }
-+
-+ desc.tfm = tfm;
-+ desc.flags = 0;
-+
-+ crypto_hash_init(&desc);
-+
-+ p = salt;
-+ sg_set_buf(&sg, p, GR_SALT_LEN);
-+ crypto_hash_update(&desc, &sg, sg.length);
-+
-+ p = entry->pw;
-+ sg_set_buf(&sg, p, strlen(p));
-+
-+ crypto_hash_update(&desc, &sg, sg.length);
-+
-+ crypto_hash_final(&desc, temp_sum);
-+
-+ memset(entry->pw, 0, GR_PW_LEN);
-+
-+ for (i = 0; i < GR_SHA_LEN; i++)
-+ if (sum[i] != temp_sum[i])
-+ retval = 1;
-+ else
-+ dummy = 1; // waste a cycle
-+
-+ crypto_free_hash(tfm);
-+
-+ return retval;
-+}
-diff -urNp linux-2.6.28.7/grsecurity/Kconfig linux-2.6.28.7/grsecurity/Kconfig
---- linux-2.6.28.7/grsecurity/Kconfig 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/Kconfig 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,867 @@
-+#
-+# grecurity configuration
-+#
-+
-+menu "Grsecurity"
-+
-+config GRKERNSEC
-+ bool "Grsecurity"
-+ select CRYPTO
-+ select CRYPTO_SHA256
-+ select SECURITY
-+ select SECURITY_CAPABILITIES
-+ help
-+ If you say Y here, you will be able to configure many features
-+ that will enhance the security of your system. It is highly
-+ recommended that you say Y here and read through the help
-+ for each option so that you fully understand the features and
-+ can evaluate their usefulness for your machine.
-+
-+choice
-+ prompt "Security Level"
-+ depends on GRKERNSEC
-+ default GRKERNSEC_CUSTOM
-+
-+config GRKERNSEC_LOW
-+ bool "Low"
-+ select GRKERNSEC_LINK
-+ select GRKERNSEC_FIFO
-+ select GRKERNSEC_EXECVE
-+ select GRKERNSEC_RANDNET
-+ select GRKERNSEC_DMESG
-+ select GRKERNSEC_CHROOT
-+ select GRKERNSEC_CHROOT_CHDIR
-+ select GRKERNSEC_MODSTOP if (MODULES)
-+
-+ help
-+ If you choose this option, several of the grsecurity options will
-+ be enabled that will give you greater protection against a number
-+ of attacks, while assuring that none of your software will have any
-+ conflicts with the additional security measures. If you run a lot
-+ of unusual software, or you are having problems with the higher
-+ security levels, you should say Y here. With this option, the
-+ following features are enabled:
-+
-+ - Linking restrictions
-+ - FIFO restrictions
-+ - Enforcing RLIMIT_NPROC on execve
-+ - Restricted dmesg
-+ - Enforced chdir("/") on chroot
-+ - Runtime module disabling
-+
-+config GRKERNSEC_MEDIUM
-+ bool "Medium"
-+ select PAX
-+ select PAX_EI_PAX
-+ select PAX_PT_PAX_FLAGS
-+ select PAX_HAVE_ACL_FLAGS
-+ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR)
-+ select GRKERNSEC_CHROOT
-+ select GRKERNSEC_CHROOT_SYSCTL
-+ select GRKERNSEC_LINK
-+ select GRKERNSEC_FIFO
-+ select GRKERNSEC_EXECVE
-+ select GRKERNSEC_DMESG
-+ select GRKERNSEC_RANDNET
-+ select GRKERNSEC_FORKFAIL
-+ select GRKERNSEC_TIME
-+ select GRKERNSEC_SIGNAL
-+ select GRKERNSEC_CHROOT
-+ select GRKERNSEC_CHROOT_UNIX
-+ select GRKERNSEC_CHROOT_MOUNT
-+ select GRKERNSEC_CHROOT_PIVOT
-+ select GRKERNSEC_CHROOT_DOUBLE
-+ select GRKERNSEC_CHROOT_CHDIR
-+ select GRKERNSEC_CHROOT_MKNOD
-+ select GRKERNSEC_PROC
-+ select GRKERNSEC_PROC_USERGROUP
-+ select GRKERNSEC_MODSTOP if (MODULES)
-+ select PAX_RANDUSTACK
-+ select PAX_ASLR
-+ select PAX_RANDMMAP
-+ select PAX_REFCOUNT if (X86)
-+
-+ help
-+ If you say Y here, several features in addition to those included
-+ in the low additional security level will be enabled. These
-+ features provide even more security to your system, though in rare
-+ cases they may be incompatible with very old or poorly written
-+ software. If you enable this option, make sure that your auth
-+ service (identd) is running as gid 1001. With this option,
-+ the following features (in addition to those provided in the
-+ low additional security level) will be enabled:
-+
-+ - Failed fork logging
-+ - Time change logging
-+ - Signal logging
-+ - Deny mounts in chroot
-+ - Deny double chrooting
-+ - Deny sysctl writes in chroot
-+ - Deny mknod in chroot
-+ - Deny access to abstract AF_UNIX sockets out of chroot
-+ - Deny pivot_root in chroot
-+ - Denied writes of /dev/kmem, /dev/mem, and /dev/port
-+ - /proc restrictions with special GID set to 10 (usually wheel)
-+ - Address Space Layout Randomization (ASLR)
-+ - Prevent exploitation of most refcount overflows
-+
-+config GRKERNSEC_HIGH
-+ bool "High"
-+ select GRKERNSEC_LINK
-+ select GRKERNSEC_FIFO
-+ select GRKERNSEC_EXECVE
-+ select GRKERNSEC_DMESG
-+ select GRKERNSEC_FORKFAIL
-+ select GRKERNSEC_TIME
-+ select GRKERNSEC_SIGNAL
-+ select GRKERNSEC_CHROOT
-+ select GRKERNSEC_CHROOT_SHMAT
-+ select GRKERNSEC_CHROOT_UNIX
-+ select GRKERNSEC_CHROOT_MOUNT
-+ select GRKERNSEC_CHROOT_FCHDIR
-+ select GRKERNSEC_CHROOT_PIVOT
-+ select GRKERNSEC_CHROOT_DOUBLE
-+ select GRKERNSEC_CHROOT_CHDIR
-+ select GRKERNSEC_CHROOT_MKNOD
-+ select GRKERNSEC_CHROOT_CAPS
-+ select GRKERNSEC_CHROOT_SYSCTL
-+ select GRKERNSEC_CHROOT_FINDTASK
-+ select GRKERNSEC_PROC
-+ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR)
-+ select GRKERNSEC_HIDESYM
-+ select GRKERNSEC_BRUTE
-+ select GRKERNSEC_PROC_USERGROUP
-+ select GRKERNSEC_KMEM
-+ select GRKERNSEC_RESLOG
-+ select GRKERNSEC_RANDNET
-+ select GRKERNSEC_PROC_ADD
-+ select GRKERNSEC_CHROOT_CHMOD
-+ select GRKERNSEC_CHROOT_NICE
-+ select GRKERNSEC_AUDIT_MOUNT
-+ select GRKERNSEC_MODSTOP if (MODULES)
-+ select PAX
-+ select PAX_RANDUSTACK
-+ select PAX_ASLR
-+ select PAX_RANDMMAP
-+ select PAX_NOEXEC
-+ select PAX_MPROTECT
-+ select PAX_EI_PAX
-+ select PAX_PT_PAX_FLAGS
-+ select PAX_HAVE_ACL_FLAGS
-+ select PAX_KERNEXEC if (X86 && !EFI && !COMPAT_VDSO && !PARAVIRT && (!X86_32 || X86_WP_WORKS_OK))
-+ select PAX_MEMORY_UDEREF if (!X86_64 && !COMPAT_VDSO)
-+ select PAX_RANDKSTACK if (X86_TSC && !X86_64)
-+ select PAX_SEGMEXEC if (X86 && !X86_64)
-+ select PAX_PAGEEXEC if (!X86)
-+ select PAX_EMUPLT if (ALPHA || PARISC || PPC32 || SPARC32 || SPARC64)
-+ select PAX_DLRESOLVE if (SPARC32 || SPARC64)
-+ select PAX_SYSCALL if (PPC32)
-+ select PAX_EMUTRAMP if (PARISC)
-+ select PAX_EMUSIGRT if (PARISC)
-+ select PAX_ETEXECRELOCS if (ALPHA || IA64 || PARISC)
-+ select PAX_REFCOUNT if (X86)
-+ help
-+ If you say Y here, many of the features of grsecurity will be
-+ enabled, which will protect you against many kinds of attacks
-+ against your system. The heightened security comes at a cost
-+ of an increased chance of incompatibilities with rare software
-+ on your machine. Since this security level enables PaX, you should
-+ view <http://pax.grsecurity.net> and read about the PaX
-+ project. While you are there, download chpax and run it on
-+ binaries that cause problems with PaX. Also remember that
-+ since the /proc restrictions are enabled, you must run your
-+ identd as gid 1001. This security level enables the following
-+ features in addition to those listed in the low and medium
-+ security levels:
-+
-+ - Additional /proc restrictions
-+ - Chmod restrictions in chroot
-+ - No signals, ptrace, or viewing of processes outside of chroot
-+ - Capability restrictions in chroot
-+ - Deny fchdir out of chroot
-+ - Priority restrictions in chroot
-+ - Segmentation-based implementation of PaX
-+ - Mprotect restrictions
-+ - Removal of addresses from /proc/<pid>/[smaps|maps|stat]
-+ - Kernel stack randomization
-+ - Mount/unmount/remount logging
-+ - Kernel symbol hiding
-+ - Prevention of memory exhaustion-based exploits
-+config GRKERNSEC_CUSTOM
-+ bool "Custom"
-+ help
-+ If you say Y here, you will be able to configure every grsecurity
-+ option, which allows you to enable many more features that aren't
-+ covered in the basic security levels. These additional features
-+ include TPE, socket restrictions, and the sysctl system for
-+ grsecurity. It is advised that you read through the help for
-+ each option to determine its usefulness in your situation.
-+
-+endchoice
-+
-+menu "Address Space Protection"
-+depends on GRKERNSEC
-+
-+config GRKERNSEC_KMEM
-+ bool "Deny writing to /dev/kmem, /dev/mem, and /dev/port"
-+ help
-+ If you say Y here, /dev/kmem and /dev/mem won't be allowed to
-+ be written to via mmap or otherwise to modify the running kernel.
-+ /dev/port will also not be allowed to be opened. If you have module
-+ support disabled, enabling this will close up four ways that are
-+ currently used to insert malicious code into the running kernel.
-+ Even with all these features enabled, we still highly recommend that
-+ you use the RBAC system, as it is still possible for an attacker to
-+ modify the running kernel through privileged I/O granted by ioperm/iopl.
-+ If you are not using XFree86, you may be able to stop this additional
-+ case by enabling the 'Disable privileged I/O' option. Though nothing
-+ legitimately writes to /dev/kmem, XFree86 does need to write to /dev/mem,
-+ but only to video memory, which is the only writing we allow in this
-+ case. If /dev/kmem or /dev/mem are mmaped without PROT_WRITE, they will
-+ not be allowed to mprotect it with PROT_WRITE later.
-+ It is highly recommended that you say Y here if you meet all the
-+ conditions above.
-+
-+config GRKERNSEC_IO
-+ bool "Disable privileged I/O"
-+ depends on X86
-+ select RTC
-+ help
-+ If you say Y here, all ioperm and iopl calls will return an error.
-+ Ioperm and iopl can be used to modify the running kernel.
-+ Unfortunately, some programs need this access to operate properly,
-+ the most notable of which are XFree86 and hwclock. hwclock can be
-+ remedied by having RTC support in the kernel, so CONFIG_RTC is
-+ enabled if this option is enabled, to ensure that hwclock operates
-+ correctly. XFree86 still will not operate correctly with this option
-+ enabled, so DO NOT CHOOSE Y IF YOU USE XFree86. If you use XFree86
-+ and you still want to protect your kernel against modification,
-+ use the RBAC system.
-+
-+config GRKERNSEC_PROC_MEMMAP
-+ bool "Remove addresses from /proc/<pid>/[smaps|maps|stat]"
-+ depends on PAX_NOEXEC || PAX_ASLR
-+ help
-+ If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
-+ give no information about the addresses of its mappings if
-+ PaX features that rely on random addresses are enabled on the task.
-+ If you use PaX it is greatly recommended that you say Y here as it
-+ closes up a hole that makes the full ASLR useless for suid
-+ binaries.
-+
-+config GRKERNSEC_BRUTE
-+ bool "Deter exploit bruteforcing"
-+ help
-+ If you say Y here, attempts to bruteforce exploits against forking
-+ daemons such as apache or sshd will be deterred. When a child of a
-+ forking daemon is killed by PaX or crashes due to an illegal
-+ instruction, the parent process will be delayed 30 seconds upon every
-+ subsequent fork until the administrator is able to assess the
-+ situation and restart the daemon. It is recommended that you also
-+ enable signal logging in the auditing section so that logs are
-+ generated when a process performs an illegal instruction.
-+
-+config GRKERNSEC_MODSTOP
-+ bool "Runtime module disabling"
-+ depends on MODULES
-+ help
-+ If you say Y here, you will be able to disable the ability to (un)load
-+ modules at runtime. This feature is useful if you need the ability
-+ to load kernel modules at boot time, but do not want to allow an
-+ attacker to load a rootkit kernel module into the system, or to remove
-+ a loaded kernel module important to system functioning. You should
-+ enable the /dev/mem protection feature as well, since rootkits can be
-+ inserted into the kernel via other methods than kernel modules. Since
-+ an untrusted module could still be loaded by modifying init scripts and
-+ rebooting the system, it is also recommended that you enable the RBAC
-+ system. If you enable this option, a sysctl option with name
-+ "disable_modules" will be created. Setting this option to "1" disables
-+ module loading. After this option is set, no further writes to it are
-+ allowed until the system is rebooted.
-+
-+config GRKERNSEC_HIDESYM
-+ bool "Hide kernel symbols"
-+ help
-+ If you say Y here, getting information on loaded modules, and
-+ displaying all kernel symbols through a syscall will be restricted
-+ to users with CAP_SYS_MODULE. This option is only effective
-+ provided the following conditions are met:
-+ 1) The kernel using grsecurity is not precompiled by some distribution
-+ 2) You are using the RBAC system and hiding other files such as your
-+ kernel image and System.map
-+ 3) You have the additional /proc restrictions enabled, which removes
-+ /proc/kcore
-+ If the above conditions are met, this option will aid to provide a
-+ useful protection against local and remote kernel exploitation of
-+ overflows and arbitrary read/write vulnerabilities.
-+
-+endmenu
-+menu "Role Based Access Control Options"
-+depends on GRKERNSEC
-+
-+config GRKERNSEC_ACL_HIDEKERN
-+ bool "Hide kernel processes"
-+ help
-+ If you say Y here, all kernel threads will be hidden to all
-+ processes but those whose subject has the "view hidden processes"
-+ flag.
-+
-+config GRKERNSEC_ACL_MAXTRIES
-+ int "Maximum tries before password lockout"
-+ default 3
-+ help
-+ This option enforces the maximum number of times a user can attempt
-+ to authorize themselves with the grsecurity RBAC system before being
-+ denied the ability to attempt authorization again for a specified time.
-+ The lower the number, the harder it will be to brute-force a password.
-+
-+config GRKERNSEC_ACL_TIMEOUT
-+ int "Time to wait after max password tries, in seconds"
-+ default 30
-+ help
-+ This option specifies the time the user must wait after attempting to
-+ authorize to the RBAC system with the maximum number of invalid
-+ passwords. The higher the number, the harder it will be to brute-force
-+ a password.
-+
-+endmenu
-+menu "Filesystem Protections"
-+depends on GRKERNSEC
-+
-+config GRKERNSEC_PROC
-+ bool "Proc restrictions"
-+ help
-+ If you say Y here, the permissions of the /proc filesystem
-+ will be altered to enhance system security and privacy. You MUST
-+ choose either a user only restriction or a user and group restriction.
-+ Depending upon the option you choose, you can either restrict users to
-+ see only the processes they themselves run, or choose a group that can
-+ view all processes and files normally restricted to root if you choose
-+ the "restrict to user only" option. NOTE: If you're running identd as
-+ a non-root user, you will have to run it as the group you specify here.
-+
-+config GRKERNSEC_PROC_USER
-+ bool "Restrict /proc to user only"
-+ depends on GRKERNSEC_PROC
-+ help
-+ If you say Y here, non-root users will only be able to view their own
-+ processes, and restricts them from viewing network-related information,
-+ and viewing kernel symbol and module information.
-+
-+config GRKERNSEC_PROC_USERGROUP
-+ bool "Allow special group"
-+ depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
-+ help
-+ If you say Y here, you will be able to select a group that will be
-+ able to view all processes, network-related information, and
-+ kernel and symbol information. This option is useful if you want
-+ to run identd as a non-root user.
-+
-+config GRKERNSEC_PROC_GID
-+ int "GID for special group"
-+ depends on GRKERNSEC_PROC_USERGROUP
-+ default 1001
-+
-+config GRKERNSEC_PROC_ADD
-+ bool "Additional restrictions"
-+ depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
-+ help
-+ If you say Y here, additional restrictions will be placed on
-+ /proc that keep normal users from viewing device information and
-+ slabinfo information that could be useful for exploits.
-+
-+config GRKERNSEC_LINK
-+ bool "Linking restrictions"
-+ help
-+ If you say Y here, /tmp race exploits will be prevented, since users
-+ will no longer be able to follow symlinks owned by other users in
-+ world-writable +t directories (i.e. /tmp), unless the owner of the
-+ symlink is the owner of the directory. users will also not be
-+ able to hardlink to files they do not own. If the sysctl option is
-+ enabled, a sysctl option with name "linking_restrictions" is created.
-+
-+config GRKERNSEC_FIFO
-+ bool "FIFO restrictions"
-+ help
-+ If you say Y here, users will not be able to write to FIFOs they don't
-+ own in world-writable +t directories (i.e. /tmp), unless the owner of
-+ the FIFO is the same owner of the directory it's held in. If the sysctl
-+ option is enabled, a sysctl option with name "fifo_restrictions" is
-+ created.
-+
-+config GRKERNSEC_CHROOT
-+ bool "Chroot jail restrictions"
-+ help
-+ If you say Y here, you will be able to choose several options that will
-+ make breaking out of a chrooted jail much more difficult. If you
-+ encounter no software incompatibilities with the following options, it
-+ is recommended that you enable each one.
-+
-+config GRKERNSEC_CHROOT_MOUNT
-+ bool "Deny mounts"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to
-+ mount or remount filesystems. If the sysctl option is enabled, a
-+ sysctl option with name "chroot_deny_mount" is created.
-+
-+config GRKERNSEC_CHROOT_DOUBLE
-+ bool "Deny double-chroots"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to chroot
-+ again outside the chroot. This is a widely used method of breaking
-+ out of a chroot jail and should not be allowed. If the sysctl
-+ option is enabled, a sysctl option with name
-+ "chroot_deny_chroot" is created.
-+
-+config GRKERNSEC_CHROOT_PIVOT
-+ bool "Deny pivot_root in chroot"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to use
-+ a function called pivot_root() that was introduced in Linux 2.3.41. It
-+ works similar to chroot in that it changes the root filesystem. This
-+ function could be misused in a chrooted process to attempt to break out
-+ of the chroot, and therefore should not be allowed. If the sysctl
-+ option is enabled, a sysctl option with name "chroot_deny_pivot" is
-+ created.
-+
-+config GRKERNSEC_CHROOT_CHDIR
-+ bool "Enforce chdir(\"/\") on all chroots"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, the current working directory of all newly-chrooted
-+ applications will be set to the the root directory of the chroot.
-+ The man page on chroot(2) states:
-+ Note that this call does not change the current working
-+ directory, so that `.' can be outside the tree rooted at
-+ `/'. In particular, the super-user can escape from a
-+ `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
-+
-+ It is recommended that you say Y here, since it's not known to break
-+ any software. If the sysctl option is enabled, a sysctl option with
-+ name "chroot_enforce_chdir" is created.
-+
-+config GRKERNSEC_CHROOT_CHMOD
-+ bool "Deny (f)chmod +s"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to chmod
-+ or fchmod files to make them have suid or sgid bits. This protects
-+ against another published method of breaking a chroot. If the sysctl
-+ option is enabled, a sysctl option with name "chroot_deny_chmod" is
-+ created.
-+
-+config GRKERNSEC_CHROOT_FCHDIR
-+ bool "Deny fchdir out of chroot"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, a well-known method of breaking chroots by fchdir'ing
-+ to a file descriptor of the chrooting process that points to a directory
-+ outside the filesystem will be stopped. If the sysctl option
-+ is enabled, a sysctl option with name "chroot_deny_fchdir" is created.
-+
-+config GRKERNSEC_CHROOT_MKNOD
-+ bool "Deny mknod"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be allowed to
-+ mknod. The problem with using mknod inside a chroot is that it
-+ would allow an attacker to create a device entry that is the same
-+ as one on the physical root of your system, which could range from
-+ anything from the console device to a device for your harddrive (which
-+ they could then use to wipe the drive or steal data). It is recommended
-+ that you say Y here, unless you run into software incompatibilities.
-+ If the sysctl option is enabled, a sysctl option with name
-+ "chroot_deny_mknod" is created.
-+
-+config GRKERNSEC_CHROOT_SHMAT
-+ bool "Deny shmat() out of chroot"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to attach
-+ to shared memory segments that were created outside of the chroot jail.
-+ It is recommended that you say Y here. If the sysctl option is enabled,
-+ a sysctl option with name "chroot_deny_shmat" is created.
-+
-+config GRKERNSEC_CHROOT_UNIX
-+ bool "Deny access to abstract AF_UNIX sockets out of chroot"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to
-+ connect to abstract (meaning not belonging to a filesystem) Unix
-+ domain sockets that were bound outside of a chroot. It is recommended
-+ that you say Y here. If the sysctl option is enabled, a sysctl option
-+ with name "chroot_deny_unix" is created.
-+
-+config GRKERNSEC_CHROOT_FINDTASK
-+ bool "Protect outside processes"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to
-+ kill, send signals with fcntl, ptrace, capget, getpgid, getsid,
-+ or view any process outside of the chroot. If the sysctl
-+ option is enabled, a sysctl option with name "chroot_findtask" is
-+ created.
-+
-+config GRKERNSEC_CHROOT_NICE
-+ bool "Restrict priority changes"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, processes inside a chroot will not be able to raise
-+ the priority of processes in the chroot, or alter the priority of
-+ processes outside the chroot. This provides more security than simply
-+ removing CAP_SYS_NICE from the process' capability set. If the
-+ sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
-+ is created.
-+
-+config GRKERNSEC_CHROOT_SYSCTL
-+ bool "Deny sysctl writes"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, an attacker in a chroot will not be able to
-+ write to sysctl entries, either by sysctl(2) or through a /proc
-+ interface. It is strongly recommended that you say Y here. If the
-+ sysctl option is enabled, a sysctl option with name
-+ "chroot_deny_sysctl" is created.
-+
-+config GRKERNSEC_CHROOT_CAPS
-+ bool "Capability restrictions"
-+ depends on GRKERNSEC_CHROOT
-+ help
-+ If you say Y here, the capabilities on all root processes within a
-+ chroot jail will be lowered to stop module insertion, raw i/o,
-+ system and net admin tasks, rebooting the system, modifying immutable
-+ files, modifying IPC owned by another, and changing the system time.
-+ This is left an option because it can break some apps. Disable this
-+ if your chrooted apps are having problems performing those kinds of
-+ tasks. If the sysctl option is enabled, a sysctl option with
-+ name "chroot_caps" is created.
-+
-+endmenu
-+menu "Kernel Auditing"
-+depends on GRKERNSEC
-+
-+config GRKERNSEC_AUDIT_GROUP
-+ bool "Single group for auditing"
-+ help
-+ If you say Y here, the exec, chdir, (un)mount, and ipc logging features
-+ will only operate on a group you specify. This option is recommended
-+ if you only want to watch certain users instead of having a large
-+ amount of logs from the entire system. If the sysctl option is enabled,
-+ a sysctl option with name "audit_group" is created.
-+
-+config GRKERNSEC_AUDIT_GID
-+ int "GID for auditing"
-+ depends on GRKERNSEC_AUDIT_GROUP
-+ default 1007
-+
-+config GRKERNSEC_EXECLOG
-+ bool "Exec logging"
-+ help
-+ If you say Y here, all execve() calls will be logged (since the
-+ other exec*() calls are frontends to execve(), all execution
-+ will be logged). Useful for shell-servers that like to keep track
-+ of their users. If the sysctl option is enabled, a sysctl option with
-+ name "exec_logging" is created.
-+ WARNING: This option when enabled will produce a LOT of logs, especially
-+ on an active system.
-+
-+config GRKERNSEC_RESLOG
-+ bool "Resource logging"
-+ help
-+ If you say Y here, all attempts to overstep resource limits will
-+ be logged with the resource name, the requested size, and the current
-+ limit. It is highly recommended that you say Y here. If the sysctl
-+ option is enabled, a sysctl option with name "resource_logging" is
-+ created. If the RBAC system is enabled, the sysctl value is ignored.
-+
-+config GRKERNSEC_CHROOT_EXECLOG
-+ bool "Log execs within chroot"
-+ help
-+ If you say Y here, all executions inside a chroot jail will be logged
-+ to syslog. This can cause a large amount of logs if certain
-+ applications (eg. djb's daemontools) are installed on the system, and
-+ is therefore left as an option. If the sysctl option is enabled, a
-+ sysctl option with name "chroot_execlog" is created.
-+
-+config GRKERNSEC_AUDIT_CHDIR
-+ bool "Chdir logging"
-+ help
-+ If you say Y here, all chdir() calls will be logged. If the sysctl
-+ option is enabled, a sysctl option with name "audit_chdir" is created.
-+
-+config GRKERNSEC_AUDIT_MOUNT
-+ bool "(Un)Mount logging"
-+ help
-+ If you say Y here, all mounts and unmounts will be logged. If the
-+ sysctl option is enabled, a sysctl option with name "audit_mount" is
-+ created.
-+
-+config GRKERNSEC_AUDIT_IPC
-+ bool "IPC logging"
-+ help
-+ If you say Y here, creation and removal of message queues, semaphores,
-+ and shared memory will be logged. If the sysctl option is enabled, a
-+ sysctl option with name "audit_ipc" is created.
-+
-+config GRKERNSEC_SIGNAL
-+ bool "Signal logging"
-+ help
-+ If you say Y here, certain important signals will be logged, such as
-+ SIGSEGV, which will as a result inform you of when a error in a program
-+ occurred, which in some cases could mean a possible exploit attempt.
-+ If the sysctl option is enabled, a sysctl option with name
-+ "signal_logging" is created.
-+
-+config GRKERNSEC_FORKFAIL
-+ bool "Fork failure logging"
-+ help
-+ If you say Y here, all failed fork() attempts will be logged.
-+ This could suggest a fork bomb, or someone attempting to overstep
-+ their process limit. If the sysctl option is enabled, a sysctl option
-+ with name "forkfail_logging" is created.
-+
-+config GRKERNSEC_TIME
-+ bool "Time change logging"
-+ help
-+ If you say Y here, any changes of the system clock will be logged.
-+ If the sysctl option is enabled, a sysctl option with name
-+ "timechange_logging" is created.
-+
-+config GRKERNSEC_PROC_IPADDR
-+ bool "/proc/<pid>/ipaddr support"
-+ help
-+ If you say Y here, a new entry will be added to each /proc/<pid>
-+ directory that contains the IP address of the person using the task.
-+ The IP is carried across local TCP and AF_UNIX stream sockets.
-+ This information can be useful for IDS/IPSes to perform remote response
-+ to a local attack. The entry is readable by only the owner of the
-+ process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
-+ the RBAC system), and thus does not create privacy concerns.
-+
-+config GRKERNSEC_AUDIT_TEXTREL
-+ bool 'ELF text relocations logging (READ HELP)'
-+ depends on PAX_MPROTECT
-+ help
-+ If you say Y here, text relocations will be logged with the filename
-+ of the offending library or binary. The purpose of the feature is
-+ to help Linux distribution developers get rid of libraries and
-+ binaries that need text relocations which hinder the future progress
-+ of PaX. Only Linux distribution developers should say Y here, and
-+ never on a production machine, as this option creates an information
-+ leak that could aid an attacker in defeating the randomization of
-+ a single memory region. If the sysctl option is enabled, a sysctl
-+ option with name "audit_textrel" is created.
-+
-+endmenu
-+
-+menu "Executable Protections"
-+depends on GRKERNSEC
-+
-+config GRKERNSEC_EXECVE
-+ bool "Enforce RLIMIT_NPROC on execs"
-+ help
-+ If you say Y here, users with a resource limit on processes will
-+ have the value checked during execve() calls. The current system
-+ only checks the system limit during fork() calls. If the sysctl option
-+ is enabled, a sysctl option with name "execve_limiting" is created.
-+
-+config GRKERNSEC_DMESG
-+ bool "Dmesg(8) restriction"
-+ help
-+ If you say Y here, non-root users will not be able to use dmesg(8)
-+ to view up to the last 4kb of messages in the kernel's log buffer.
-+ If the sysctl option is enabled, a sysctl option with name "dmesg" is
-+ created.
-+
-+config GRKERNSEC_TPE
-+ bool "Trusted Path Execution (TPE)"
-+ help
-+ If you say Y here, you will be able to choose a gid to add to the
-+ supplementary groups of users you want to mark as "untrusted."
-+ These users will not be able to execute any files that are not in
-+ root-owned directories writable only by root. If the sysctl option
-+ is enabled, a sysctl option with name "tpe" is created.
-+
-+config GRKERNSEC_TPE_ALL
-+ bool "Partially restrict non-root users"
-+ depends on GRKERNSEC_TPE
-+ help
-+ If you say Y here, All non-root users other than the ones in the
-+ group specified in the main TPE option will only be allowed to
-+ execute files in directories they own that are not group or
-+ world-writable, or in directories owned by root and writable only by
-+ root. If the sysctl option is enabled, a sysctl option with name
-+ "tpe_restrict_all" is created.
-+
-+config GRKERNSEC_TPE_INVERT
-+ bool "Invert GID option"
-+ depends on GRKERNSEC_TPE
-+ help
-+ If you say Y here, the group you specify in the TPE configuration will
-+ decide what group TPE restrictions will be *disabled* for. This
-+ option is useful if you want TPE restrictions to be applied to most
-+ users on the system.
-+
-+config GRKERNSEC_TPE_GID
-+ int "GID for untrusted users"
-+ depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
-+ default 1005
-+ help
-+ If you have selected the "Invert GID option" above, setting this
-+ GID determines what group TPE restrictions will be *disabled* for.
-+ If you have not selected the "Invert GID option" above, setting this
-+ GID determines what group TPE restrictions will be *enabled* for.
-+ If the sysctl option is enabled, a sysctl option with name "tpe_gid"
-+ is created.
-+
-+config GRKERNSEC_TPE_GID
-+ int "GID for trusted users"
-+ depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
-+ default 1005
-+ help
-+ If you have selected the "Invert GID option" above, setting this
-+ GID determines what group TPE restrictions will be *disabled* for.
-+ If you have not selected the "Invert GID option" above, setting this
-+ GID determines what group TPE restrictions will be *enabled* for.
-+ If the sysctl option is enabled, a sysctl option with name "tpe_gid"
-+ is created.
-+
-+endmenu
-+menu "Network Protections"
-+depends on GRKERNSEC
-+
-+config GRKERNSEC_RANDNET
-+ bool "Larger entropy pools"
-+ help
-+ If you say Y here, the entropy pools used for many features of Linux
-+ and grsecurity will be doubled in size. Since several grsecurity
-+ features use additional randomness, it is recommended that you say Y
-+ here. Saying Y here has a similar effect as modifying
-+ /proc/sys/kernel/random/poolsize.
-+
-+config GRKERNSEC_SOCKET
-+ bool "Socket restrictions"
-+ help
-+ If you say Y here, you will be able to choose from several options.
-+ If you assign a GID on your system and add it to the supplementary
-+ groups of users you want to restrict socket access to, this patch
-+ will perform up to three things, based on the option(s) you choose.
-+
-+config GRKERNSEC_SOCKET_ALL
-+ bool "Deny any sockets to group"
-+ depends on GRKERNSEC_SOCKET
-+ help
-+ If you say Y here, you will be able to choose a GID of whose users will
-+ be unable to connect to other hosts from your machine or run server
-+ applications from your machine. If the sysctl option is enabled, a
-+ sysctl option with name "socket_all" is created.
-+
-+config GRKERNSEC_SOCKET_ALL_GID
-+ int "GID to deny all sockets for"
-+ depends on GRKERNSEC_SOCKET_ALL
-+ default 1004
-+ help
-+ Here you can choose the GID to disable socket access for. Remember to
-+ add the users you want socket access disabled for to the GID
-+ specified here. If the sysctl option is enabled, a sysctl option
-+ with name "socket_all_gid" is created.
-+
-+config GRKERNSEC_SOCKET_CLIENT
-+ bool "Deny client sockets to group"
-+ depends on GRKERNSEC_SOCKET
-+ help
-+ If you say Y here, you will be able to choose a GID of whose users will
-+ be unable to connect to other hosts from your machine, but will be
-+ able to run servers. If this option is enabled, all users in the group
-+ you specify will have to use passive mode when initiating ftp transfers
-+ from the shell on your machine. If the sysctl option is enabled, a
-+ sysctl option with name "socket_client" is created.
-+
-+config GRKERNSEC_SOCKET_CLIENT_GID
-+ int "GID to deny client sockets for"
-+ depends on GRKERNSEC_SOCKET_CLIENT
-+ default 1003
-+ help
-+ Here you can choose the GID to disable client socket access for.
-+ Remember to add the users you want client socket access disabled for to
-+ the GID specified here. If the sysctl option is enabled, a sysctl
-+ option with name "socket_client_gid" is created.
-+
-+config GRKERNSEC_SOCKET_SERVER
-+ bool "Deny server sockets to group"
-+ depends on GRKERNSEC_SOCKET
-+ help
-+ If you say Y here, you will be able to choose a GID of whose users will
-+ be unable to run server applications from your machine. If the sysctl
-+ option is enabled, a sysctl option with name "socket_server" is created.
-+
-+config GRKERNSEC_SOCKET_SERVER_GID
-+ int "GID to deny server sockets for"
-+ depends on GRKERNSEC_SOCKET_SERVER
-+ default 1002
-+ help
-+ Here you can choose the GID to disable server socket access for.
-+ Remember to add the users you want server socket access disabled for to
-+ the GID specified here. If the sysctl option is enabled, a sysctl
-+ option with name "socket_server_gid" is created.
-+
-+endmenu
-+menu "Sysctl support"
-+depends on GRKERNSEC && SYSCTL
-+
-+config GRKERNSEC_SYSCTL
-+ bool "Sysctl support"
-+ help
-+ If you say Y here, you will be able to change the options that
-+ grsecurity runs with at bootup, without having to recompile your
-+ kernel. You can echo values to files in /proc/sys/kernel/grsecurity
-+ to enable (1) or disable (0) various features. All the sysctl entries
-+ are mutable until the "grsec_lock" entry is set to a non-zero value.
-+ All features enabled in the kernel configuration are disabled at boot
-+ if you do not say Y to the "Turn on features by default" option.
-+ All options should be set at startup, and the grsec_lock entry should
-+ be set to a non-zero value after all the options are set.
-+ *THIS IS EXTREMELY IMPORTANT*
-+
-+config GRKERNSEC_SYSCTL_ON
-+ bool "Turn on features by default"
-+ depends on GRKERNSEC_SYSCTL
-+ help
-+ If you say Y here, instead of having all features enabled in the
-+ kernel configuration disabled at boot time, the features will be
-+ enabled at boot time. It is recommended you say Y here unless
-+ there is some reason you would want all sysctl-tunable features to
-+ be disabled by default. As mentioned elsewhere, it is important
-+ to enable the grsec_lock entry once you have finished modifying
-+ the sysctl entries.
-+
-+endmenu
-+menu "Logging Options"
-+depends on GRKERNSEC
-+
-+config GRKERNSEC_FLOODTIME
-+ int "Seconds in between log messages (minimum)"
-+ default 10
-+ help
-+ This option allows you to enforce the number of seconds between
-+ grsecurity log messages. The default should be suitable for most
-+ people, however, if you choose to change it, choose a value small enough
-+ to allow informative logs to be produced, but large enough to
-+ prevent flooding.
-+
-+config GRKERNSEC_FLOODBURST
-+ int "Number of messages in a burst (maximum)"
-+ default 4
-+ help
-+ This option allows you to choose the maximum number of messages allowed
-+ within the flood time interval you chose in a separate option. The
-+ default should be suitable for most people, however if you find that
-+ many of your logs are being interpreted as flooding, you may want to
-+ raise this value.
-+
-+endmenu
-+
-+endmenu
-diff -urNp linux-2.6.28.7/grsecurity/Makefile linux-2.6.28.7/grsecurity/Makefile
---- linux-2.6.28.7/grsecurity/Makefile 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/grsecurity/Makefile 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,20 @@
-+# grsecurity's ACL system was originally written in 2001 by Michael Dalton
-+# during 2001-2005 it has been completely redesigned by Brad Spengler
-+# into an RBAC system
-+#
-+# All code in this directory and various hooks inserted throughout the kernel
-+# are copyright Brad Spengler, and released under the GPL v2 or higher
-+
-+obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
-+ grsec_mount.o grsec_sig.o grsec_sock.o grsec_sysctl.o \
-+ grsec_time.o grsec_tpe.o grsec_ipc.o grsec_link.o grsec_textrel.o
-+
-+obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_ip.o gracl_segv.o \
-+ gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
-+ gracl_learn.o grsec_log.o
-+obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
-+
-+ifndef CONFIG_GRKERNSEC
-+obj-y += grsec_disabled.o
-+endif
-+
-diff -urNp linux-2.6.28.7/include/asm-frv/kmap_types.h linux-2.6.28.7/include/asm-frv/kmap_types.h
---- linux-2.6.28.7/include/asm-frv/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/asm-frv/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
-@@ -23,6 +23,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/include/asm-generic/futex.h linux-2.6.28.7/include/asm-generic/futex.h
---- linux-2.6.28.7/include/asm-generic/futex.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/asm-generic/futex.h 2009-02-21 09:37:49.000000000 -0500
-@@ -6,7 +6,7 @@
- #include <asm/errno.h>
-
- static inline int
--futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
-+futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
- {
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
-@@ -48,7 +48,7 @@ futex_atomic_op_inuser (int encoded_op,
- }
-
- static inline int
--futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
-+futex_atomic_cmpxchg_inatomic(u32 __user *uaddr, int oldval, int newval)
- {
- return -ENOSYS;
- }
-diff -urNp linux-2.6.28.7/include/asm-generic/vmlinux.lds.h linux-2.6.28.7/include/asm-generic/vmlinux.lds.h
---- linux-2.6.28.7/include/asm-generic/vmlinux.lds.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/asm-generic/vmlinux.lds.h 2009-02-21 09:37:49.000000000 -0500
-@@ -69,6 +69,7 @@
- .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_rodata) = .; \
- *(.rodata) *(.rodata.*) \
-+ *(.data.read_only) \
- *(__vermagic) /* Kernel version magic */ \
- *(__markers_strings) /* Markers: strings */ \
- *(__tracepoints_strings)/* Tracepoints: strings */ \
-diff -urNp linux-2.6.28.7/include/asm-m32r/kmap_types.h linux-2.6.28.7/include/asm-m32r/kmap_types.h
---- linux-2.6.28.7/include/asm-m32r/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/asm-m32r/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
-@@ -21,7 +21,8 @@ D(9) KM_IRQ0,
- D(10) KM_IRQ1,
- D(11) KM_SOFTIRQ0,
- D(12) KM_SOFTIRQ1,
--D(13) KM_TYPE_NR
-+D(13) KM_CLEARPAGE,
-+D(14) KM_TYPE_NR
- };
-
- #undef D
-diff -urNp linux-2.6.28.7/include/asm-m68k/kmap_types.h linux-2.6.28.7/include/asm-m68k/kmap_types.h
---- linux-2.6.28.7/include/asm-m68k/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/asm-m68k/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
-@@ -15,6 +15,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/include/asm-mn10300/kmap_types.h linux-2.6.28.7/include/asm-mn10300/kmap_types.h
---- linux-2.6.28.7/include/asm-mn10300/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/asm-mn10300/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
-@@ -25,6 +25,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/include/asm-xtensa/kmap_types.h linux-2.6.28.7/include/asm-xtensa/kmap_types.h
---- linux-2.6.28.7/include/asm-xtensa/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/asm-xtensa/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
-@@ -25,6 +25,7 @@ enum km_type {
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
-+ KM_CLEARPAGE,
- KM_TYPE_NR
- };
-
-diff -urNp linux-2.6.28.7/include/drm/drm_pciids.h linux-2.6.28.7/include/drm/drm_pciids.h
---- linux-2.6.28.7/include/drm/drm_pciids.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/drm/drm_pciids.h 2009-02-21 09:37:49.000000000 -0500
-@@ -243,7 +243,7 @@
- {0x1002, 0x796d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
- {0x1002, 0x796e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
- {0x1002, 0x796f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define r128_PCI_IDS \
- {0x1002, 0x4c45, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-@@ -283,14 +283,14 @@
- {0x1002, 0x5446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x1002, 0x544C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x1002, 0x5452, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define mga_PCI_IDS \
- {0x102b, 0x0520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G200}, \
- {0x102b, 0x0521, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G200}, \
- {0x102b, 0x0525, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G400}, \
- {0x102b, 0x2527, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G550}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define mach64_PCI_IDS \
- {0x1002, 0x4749, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-@@ -313,7 +313,7 @@
- {0x1002, 0x4c53, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x1002, 0x4c4d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x1002, 0x4c4e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define sisdrv_PCI_IDS \
- {0x1039, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-@@ -324,7 +324,7 @@
- {0x1039, 0x7300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x18CA, 0x0040, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_CHIP_315}, \
- {0x18CA, 0x0042, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_CHIP_315}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define tdfx_PCI_IDS \
- {0x121a, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-@@ -333,7 +333,7 @@
- {0x121a, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x121a, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x121a, 0x000b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define viadrv_PCI_IDS \
- {0x1106, 0x3022, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-@@ -345,25 +345,25 @@
- {0x1106, 0x3343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x1106, 0x3230, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_DX9_0}, \
- {0x1106, 0x3157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_PRO_GROUP_A}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define i810_PCI_IDS \
- {0x8086, 0x7121, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x8086, 0x7123, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x8086, 0x7125, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x8086, 0x1132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define i830_PCI_IDS \
- {0x8086, 0x3577, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x8086, 0x2562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x8086, 0x3582, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
- {0x8086, 0x2572, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define gamma_PCI_IDS \
- {0x3d3d, 0x0008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define savage_PCI_IDS \
- {0x5333, 0x8a20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_SAVAGE3D}, \
-@@ -389,10 +389,10 @@
- {0x5333, 0x8d02, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_TWISTER}, \
- {0x5333, 0x8d03, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_PROSAVAGEDDR}, \
- {0x5333, 0x8d04, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_PROSAVAGEDDR}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define ffb_PCI_IDS \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-
- #define i915_PCI_IDS \
- {0x8086, 0x3577, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
-@@ -418,4 +418,4 @@
- {0x8086, 0x2e02, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
- {0x8086, 0x2e12, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
- {0x8086, 0x2e22, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
-- {0, 0, 0}
-+ {0, 0, 0, 0, 0, 0}
-diff -urNp linux-2.6.28.7/include/linux/a.out.h linux-2.6.28.7/include/linux/a.out.h
---- linux-2.6.28.7/include/linux/a.out.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/a.out.h 2009-02-21 09:37:49.000000000 -0500
-@@ -39,6 +39,14 @@ enum machine_type {
- M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
- };
-
-+/* Constants for the N_FLAGS field */
-+#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
-+#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */
-+#define F_PAX_MPROTECT 4 /* Restrict mprotect() */
-+#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */
-+/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
-+#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
-+
- #if !defined (N_MAGIC)
- #define N_MAGIC(exec) ((exec).a_info & 0xffff)
- #endif
-diff -urNp linux-2.6.28.7/include/linux/binfmts.h linux-2.6.28.7/include/linux/binfmts.h
---- linux-2.6.28.7/include/linux/binfmts.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/binfmts.h 2009-02-21 09:37:49.000000000 -0500
-@@ -74,6 +74,7 @@ struct linux_binfmt {
- int (*load_binary)(struct linux_binprm *, struct pt_regs * regs);
- int (*load_shlib)(struct file *);
- int (*core_dump)(long signr, struct pt_regs *regs, struct file *file, unsigned long limit);
-+ void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
- unsigned long min_coredump; /* minimal dump size */
- int hasvdso;
- };
-diff -urNp linux-2.6.28.7/include/linux/cache.h linux-2.6.28.7/include/linux/cache.h
---- linux-2.6.28.7/include/linux/cache.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/cache.h 2009-02-21 09:37:49.000000000 -0500
-@@ -16,6 +16,10 @@
- #define __read_mostly
- #endif
-
-+#ifndef __read_only
-+#define __read_only __read_mostly
-+#endif
-+
- #ifndef ____cacheline_aligned
- #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
- #endif
-diff -urNp linux-2.6.28.7/include/linux/capability.h linux-2.6.28.7/include/linux/capability.h
---- linux-2.6.28.7/include/linux/capability.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/capability.h 2009-02-21 09:37:49.000000000 -0500
-@@ -516,6 +516,7 @@ kernel_cap_t cap_set_effective(const ker
- #define has_capability(t, cap) (security_capable((t), (cap)) == 0)
-
- extern int capable(int cap);
-+int capable_nolog(int cap);
-
- #endif /* __KERNEL__ */
-
-diff -urNp linux-2.6.28.7/include/linux/cpumask.h linux-2.6.28.7/include/linux/cpumask.h
---- linux-2.6.28.7/include/linux/cpumask.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/cpumask.h 2009-02-21 09:37:49.000000000 -0500
-@@ -142,7 +142,6 @@
- #include <linux/bitmap.h>
-
- typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
--extern cpumask_t _unused_cpumask_arg_;
-
- #define cpu_set(cpu, dst) __cpu_set((cpu), &(dst))
- static inline void __cpu_set(int cpu, volatile cpumask_t *dstp)
-diff -urNp linux-2.6.28.7/include/linux/elf.h linux-2.6.28.7/include/linux/elf.h
---- linux-2.6.28.7/include/linux/elf.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/elf.h 2009-02-21 09:37:49.000000000 -0500
-@@ -49,6 +49,17 @@ typedef __s64 Elf64_Sxword;
- #define PT_GNU_EH_FRAME 0x6474e550
-
- #define PT_GNU_STACK (PT_LOOS + 0x474e551)
-+#define PT_GNU_RELRO (PT_LOOS + 0x474e552)
-+
-+#define PT_PAX_FLAGS (PT_LOOS + 0x5041580)
-+
-+/* Constants for the e_flags field */
-+#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
-+#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */
-+#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */
-+#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */
-+/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
-+#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
-
- /* These constants define the different elf file types */
- #define ET_NONE 0
-@@ -84,6 +95,8 @@ typedef __s64 Elf64_Sxword;
- #define DT_DEBUG 21
- #define DT_TEXTREL 22
- #define DT_JMPREL 23
-+#define DT_FLAGS 30
-+ #define DF_TEXTREL 0x00000004
- #define DT_ENCODING 32
- #define OLD_DT_LOOS 0x60000000
- #define DT_LOOS 0x6000000d
-@@ -230,6 +243,19 @@ typedef struct elf64_hdr {
- #define PF_W 0x2
- #define PF_X 0x1
-
-+#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */
-+#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */
-+#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */
-+#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */
-+#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */
-+#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */
-+/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */
-+/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */
-+#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */
-+#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */
-+#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */
-+#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */
-+
- typedef struct elf32_phdr{
- Elf32_Word p_type;
- Elf32_Off p_offset;
-@@ -322,6 +348,8 @@ typedef struct elf64_shdr {
- #define EI_OSABI 7
- #define EI_PAD 8
-
-+#define EI_PAX 14
-+
- #define ELFMAG0 0x7f /* EI_MAG */
- #define ELFMAG1 'E'
- #define ELFMAG2 'L'
-@@ -384,6 +412,7 @@ extern Elf32_Dyn _DYNAMIC [];
- #define elf_phdr elf32_phdr
- #define elf_note elf32_note
- #define elf_addr_t Elf32_Off
-+#define elf_dyn Elf32_Dyn
-
- #else
-
-@@ -392,6 +421,7 @@ extern Elf64_Dyn _DYNAMIC [];
- #define elf_phdr elf64_phdr
- #define elf_note elf64_note
- #define elf_addr_t Elf64_Off
-+#define elf_dyn Elf64_Dyn
-
- #endif
-
-diff -urNp linux-2.6.28.7/include/linux/gracl.h linux-2.6.28.7/include/linux/gracl.h
---- linux-2.6.28.7/include/linux/gracl.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/include/linux/gracl.h 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,318 @@
-+#ifndef GR_ACL_H
-+#define GR_ACL_H
-+
-+#include <linux/grdefs.h>
-+#include <linux/resource.h>
-+#include <linux/capability.h>
-+#include <linux/dcache.h>
-+#include <asm/resource.h>
-+
-+/* Major status information */
-+
-+#define GR_VERSION "grsecurity 2.1.13"
-+#define GRSECURITY_VERSION 0x2113
-+
-+enum {
-+ GR_SHUTDOWN = 0,
-+ GR_ENABLE = 1,
-+ GR_SPROLE = 2,
-+ GR_RELOAD = 3,
-+ GR_SEGVMOD = 4,
-+ GR_STATUS = 5,
-+ GR_UNSPROLE = 6,
-+ GR_PASSSET = 7,
-+ GR_SPROLEPAM = 8,
-+};
-+
-+/* Password setup definitions
-+ * kernel/grhash.c */
-+enum {
-+ GR_PW_LEN = 128,
-+ GR_SALT_LEN = 16,
-+ GR_SHA_LEN = 32,
-+};
-+
-+enum {
-+ GR_SPROLE_LEN = 64,
-+};
-+
-+#define GR_NLIMITS (RLIMIT_LOCKS + 2)
-+
-+/* Begin Data Structures */
-+
-+struct sprole_pw {
-+ unsigned char *rolename;
-+ unsigned char salt[GR_SALT_LEN];
-+ unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */
-+};
-+
-+struct name_entry {
-+ __u32 key;
-+ ino_t inode;
-+ dev_t device;
-+ char *name;
-+ __u16 len;
-+ __u8 deleted;
-+ struct name_entry *prev;
-+ struct name_entry *next;
-+};
-+
-+struct inodev_entry {
-+ struct name_entry *nentry;
-+ struct inodev_entry *prev;
-+ struct inodev_entry *next;
-+};
-+
-+struct acl_role_db {
-+ struct acl_role_label **r_hash;
-+ __u32 r_size;
-+};
-+
-+struct inodev_db {
-+ struct inodev_entry **i_hash;
-+ __u32 i_size;
-+};
-+
-+struct name_db {
-+ struct name_entry **n_hash;
-+ __u32 n_size;
-+};
-+
-+struct crash_uid {
-+ uid_t uid;
-+ unsigned long expires;
-+};
-+
-+struct gr_hash_struct {
-+ void **table;
-+ void **nametable;
-+ void *first;
-+ __u32 table_size;
-+ __u32 used_size;
-+ int type;
-+};
-+
-+/* Userspace Grsecurity ACL data structures */
-+
-+struct acl_subject_label {
-+ char *filename;
-+ ino_t inode;
-+ dev_t device;
-+ __u32 mode;
-+ kernel_cap_t cap_mask;
-+ kernel_cap_t cap_lower;
-+
-+ struct rlimit res[GR_NLIMITS];
-+ __u16 resmask;
-+
-+ __u8 user_trans_type;
-+ __u8 group_trans_type;
-+ uid_t *user_transitions;
-+ gid_t *group_transitions;
-+ __u16 user_trans_num;
-+ __u16 group_trans_num;
-+
-+ __u32 ip_proto[8];
-+ __u32 ip_type;
-+ struct acl_ip_label **ips;
-+ __u32 ip_num;
-+ __u32 inaddr_any_override;
-+
-+ __u32 crashes;
-+ unsigned long expires;
-+
-+ struct acl_subject_label *parent_subject;
-+ struct gr_hash_struct *hash;
-+ struct acl_subject_label *prev;
-+ struct acl_subject_label *next;
-+
-+ struct acl_object_label **obj_hash;
-+ __u32 obj_hash_size;
-+ __u16 pax_flags;
-+};
-+
-+struct role_allowed_ip {
-+ __u32 addr;
-+ __u32 netmask;
-+
-+ struct role_allowed_ip *prev;
-+ struct role_allowed_ip *next;
-+};
-+
-+struct role_transition {
-+ char *rolename;
-+
-+ struct role_transition *prev;
-+ struct role_transition *next;
-+};
-+
-+struct acl_role_label {
-+ char *rolename;
-+ uid_t uidgid;
-+ __u16 roletype;
-+
-+ __u16 auth_attempts;
-+ unsigned long expires;
-+
-+ struct acl_subject_label *root_label;
-+ struct gr_hash_struct *hash;
-+
-+ struct acl_role_label *prev;
-+ struct acl_role_label *next;
-+
-+ struct role_transition *transitions;
-+ struct role_allowed_ip *allowed_ips;
-+ uid_t *domain_children;
-+ __u16 domain_child_num;
-+
-+ struct acl_subject_label **subj_hash;
-+ __u32 subj_hash_size;
-+};
-+
-+struct user_acl_role_db {
-+ struct acl_role_label **r_table;
-+ __u32 num_pointers; /* Number of allocations to track */
-+ __u32 num_roles; /* Number of roles */
-+ __u32 num_domain_children; /* Number of domain children */
-+ __u32 num_subjects; /* Number of subjects */
-+ __u32 num_objects; /* Number of objects */
-+};
-+
-+struct acl_object_label {
-+ char *filename;
-+ ino_t inode;
-+ dev_t device;
-+ __u32 mode;
-+
-+ struct acl_subject_label *nested;
-+ struct acl_object_label *globbed;
-+
-+ /* next two structures not used */
-+
-+ struct acl_object_label *prev;
-+ struct acl_object_label *next;
-+};
-+
-+struct acl_ip_label {
-+ char *iface;
-+ __u32 addr;
-+ __u32 netmask;
-+ __u16 low, high;
-+ __u8 mode;
-+ __u32 type;
-+ __u32 proto[8];
-+
-+ /* next two structures not used */
-+
-+ struct acl_ip_label *prev;
-+ struct acl_ip_label *next;
-+};
-+
-+struct gr_arg {
-+ struct user_acl_role_db role_db;
-+ unsigned char pw[GR_PW_LEN];
-+ unsigned char salt[GR_SALT_LEN];
-+ unsigned char sum[GR_SHA_LEN];
-+ unsigned char sp_role[GR_SPROLE_LEN];
-+ struct sprole_pw *sprole_pws;
-+ dev_t segv_device;
-+ ino_t segv_inode;
-+ uid_t segv_uid;
-+ __u16 num_sprole_pws;
-+ __u16 mode;
-+};
-+
-+struct gr_arg_wrapper {
-+ struct gr_arg *arg;
-+ __u32 version;
-+ __u32 size;
-+};
-+
-+struct subject_map {
-+ struct acl_subject_label *user;
-+ struct acl_subject_label *kernel;
-+ struct subject_map *prev;
-+ struct subject_map *next;
-+};
-+
-+struct acl_subj_map_db {
-+ struct subject_map **s_hash;
-+ __u32 s_size;
-+};
-+
-+/* End Data Structures Section */
-+
-+/* Hash functions generated by empirical testing by Brad Spengler
-+ Makes good use of the low bits of the inode. Generally 0-1 times
-+ in loop for successful match. 0-3 for unsuccessful match.
-+ Shift/add algorithm with modulus of table size and an XOR*/
-+
-+static __inline__ unsigned int
-+rhash(const uid_t uid, const __u16 type, const unsigned int sz)
-+{
-+ return (((uid << type) + (uid ^ type)) % sz);
-+}
-+
-+ static __inline__ unsigned int
-+shash(const struct acl_subject_label *userp, const unsigned int sz)
-+{
-+ return ((const unsigned long)userp % sz);
-+}
-+
-+static __inline__ unsigned int
-+fhash(const ino_t ino, const dev_t dev, const unsigned int sz)
-+{
-+ return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz);
-+}
-+
-+static __inline__ unsigned int
-+nhash(const char *name, const __u16 len, const unsigned int sz)
-+{
-+ return full_name_hash(name, len) % sz;
-+}
-+
-+#define FOR_EACH_ROLE_START(role,iter) \
-+ role = NULL; \
-+ iter = 0; \
-+ while (iter < acl_role_set.r_size) { \
-+ if (role == NULL) \
-+ role = acl_role_set.r_hash[iter]; \
-+ if (role == NULL) { \
-+ iter++; \
-+ continue; \
-+ }
-+
-+#define FOR_EACH_ROLE_END(role,iter) \
-+ role = role->next; \
-+ if (role == NULL) \
-+ iter++; \
-+ }
-+
-+#define FOR_EACH_SUBJECT_START(role,subj,iter) \
-+ subj = NULL; \
-+ iter = 0; \
-+ while (iter < role->subj_hash_size) { \
-+ if (subj == NULL) \
-+ subj = role->subj_hash[iter]; \
-+ if (subj == NULL) { \
-+ iter++; \
-+ continue; \
-+ }
-+
-+#define FOR_EACH_SUBJECT_END(subj,iter) \
-+ subj = subj->next; \
-+ if (subj == NULL) \
-+ iter++; \
-+ }
-+
-+
-+#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
-+ subj = role->hash->first; \
-+ while (subj != NULL) {
-+
-+#define FOR_EACH_NESTED_SUBJECT_END(subj) \
-+ subj = subj->next; \
-+ }
-+
-+#endif
-+
-diff -urNp linux-2.6.28.7/include/linux/gralloc.h linux-2.6.28.7/include/linux/gralloc.h
---- linux-2.6.28.7/include/linux/gralloc.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/include/linux/gralloc.h 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,8 @@
-+#ifndef __GRALLOC_H
-+#define __GRALLOC_H
-+
-+void acl_free_all(void);
-+int acl_alloc_stack_init(unsigned long size);
-+void *acl_alloc(unsigned long len);
-+
-+#endif
-diff -urNp linux-2.6.28.7/include/linux/grdefs.h linux-2.6.28.7/include/linux/grdefs.h
---- linux-2.6.28.7/include/linux/grdefs.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/include/linux/grdefs.h 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,131 @@
-+#ifndef GRDEFS_H
-+#define GRDEFS_H
-+
-+/* Begin grsecurity status declarations */
-+
-+enum {
-+ GR_READY = 0x01,
-+ GR_STATUS_INIT = 0x00 // disabled state
-+};
-+
-+/* Begin ACL declarations */
-+
-+/* Role flags */
-+
-+enum {
-+ GR_ROLE_USER = 0x0001,
-+ GR_ROLE_GROUP = 0x0002,
-+ GR_ROLE_DEFAULT = 0x0004,
-+ GR_ROLE_SPECIAL = 0x0008,
-+ GR_ROLE_AUTH = 0x0010,
-+ GR_ROLE_NOPW = 0x0020,
-+ GR_ROLE_GOD = 0x0040,
-+ GR_ROLE_LEARN = 0x0080,
-+ GR_ROLE_TPE = 0x0100,
-+ GR_ROLE_DOMAIN = 0x0200,
-+ GR_ROLE_PAM = 0x0400
-+};
-+
-+/* ACL Subject and Object mode flags */
-+enum {
-+ GR_DELETED = 0x80000000
-+};
-+
-+/* ACL Object-only mode flags */
-+enum {
-+ GR_READ = 0x00000001,
-+ GR_APPEND = 0x00000002,
-+ GR_WRITE = 0x00000004,
-+ GR_EXEC = 0x00000008,
-+ GR_FIND = 0x00000010,
-+ GR_INHERIT = 0x00000020,
-+ GR_SETID = 0x00000040,
-+ GR_CREATE = 0x00000080,
-+ GR_DELETE = 0x00000100,
-+ GR_LINK = 0x00000200,
-+ GR_AUDIT_READ = 0x00000400,
-+ GR_AUDIT_APPEND = 0x00000800,
-+ GR_AUDIT_WRITE = 0x00001000,
-+ GR_AUDIT_EXEC = 0x00002000,
-+ GR_AUDIT_FIND = 0x00004000,
-+ GR_AUDIT_INHERIT= 0x00008000,
-+ GR_AUDIT_SETID = 0x00010000,
-+ GR_AUDIT_CREATE = 0x00020000,
-+ GR_AUDIT_DELETE = 0x00040000,
-+ GR_AUDIT_LINK = 0x00080000,
-+ GR_PTRACERD = 0x00100000,
-+ GR_NOPTRACE = 0x00200000,
-+ GR_SUPPRESS = 0x00400000,
-+ GR_NOLEARN = 0x00800000
-+};
-+
-+#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
-+ GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
-+ GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
-+
-+/* ACL subject-only mode flags */
-+enum {
-+ GR_KILL = 0x00000001,
-+ GR_VIEW = 0x00000002,
-+ GR_PROTECTED = 0x00000004,
-+ GR_LEARN = 0x00000008,
-+ GR_OVERRIDE = 0x00000010,
-+ /* just a placeholder, this mode is only used in userspace */
-+ GR_DUMMY = 0x00000020,
-+ GR_PROTSHM = 0x00000040,
-+ GR_KILLPROC = 0x00000080,
-+ GR_KILLIPPROC = 0x00000100,
-+ /* just a placeholder, this mode is only used in userspace */
-+ GR_NOTROJAN = 0x00000200,
-+ GR_PROTPROCFD = 0x00000400,
-+ GR_PROCACCT = 0x00000800,
-+ GR_RELAXPTRACE = 0x00001000,
-+ GR_NESTED = 0x00002000,
-+ GR_INHERITLEARN = 0x00004000,
-+ GR_PROCFIND = 0x00008000,
-+ GR_POVERRIDE = 0x00010000,
-+ GR_KERNELAUTH = 0x00020000,
-+};
-+
-+enum {
-+ GR_PAX_ENABLE_SEGMEXEC = 0x0001,
-+ GR_PAX_ENABLE_PAGEEXEC = 0x0002,
-+ GR_PAX_ENABLE_MPROTECT = 0x0004,
-+ GR_PAX_ENABLE_RANDMMAP = 0x0008,
-+ GR_PAX_ENABLE_EMUTRAMP = 0x0010,
-+ GR_PAX_DISABLE_SEGMEXEC = 0x0100,
-+ GR_PAX_DISABLE_PAGEEXEC = 0x0200,
-+ GR_PAX_DISABLE_MPROTECT = 0x0400,
-+ GR_PAX_DISABLE_RANDMMAP = 0x0800,
-+ GR_PAX_DISABLE_EMUTRAMP = 0x1000,
-+};
-+
-+enum {
-+ GR_ID_USER = 0x01,
-+ GR_ID_GROUP = 0x02,
-+};
-+
-+enum {
-+ GR_ID_ALLOW = 0x01,
-+ GR_ID_DENY = 0x02,
-+};
-+
-+#define GR_CRASH_RES 11
-+#define GR_UIDTABLE_MAX 500
-+
-+/* begin resource learning section */
-+enum {
-+ GR_RLIM_CPU_BUMP = 60,
-+ GR_RLIM_FSIZE_BUMP = 50000,
-+ GR_RLIM_DATA_BUMP = 10000,
-+ GR_RLIM_STACK_BUMP = 1000,
-+ GR_RLIM_CORE_BUMP = 10000,
-+ GR_RLIM_RSS_BUMP = 500000,
-+ GR_RLIM_NPROC_BUMP = 1,
-+ GR_RLIM_NOFILE_BUMP = 5,
-+ GR_RLIM_MEMLOCK_BUMP = 50000,
-+ GR_RLIM_AS_BUMP = 500000,
-+ GR_RLIM_LOCKS_BUMP = 2
-+};
-+
-+#endif
-diff -urNp linux-2.6.28.7/include/linux/grinternal.h linux-2.6.28.7/include/linux/grinternal.h
---- linux-2.6.28.7/include/linux/grinternal.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/include/linux/grinternal.h 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,210 @@
-+#ifndef __GRINTERNAL_H
-+#define __GRINTERNAL_H
-+
-+#ifdef CONFIG_GRKERNSEC
-+
-+#include <linux/fs.h>
-+#include <linux/gracl.h>
-+#include <linux/grdefs.h>
-+#include <linux/grmsg.h>
-+
-+void gr_add_learn_entry(const char *fmt, ...);
-+__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
-+ const struct vfsmount *mnt);
-+__u32 gr_check_create(const struct dentry *new_dentry,
-+ const struct dentry *parent,
-+ const struct vfsmount *mnt, const __u32 mode);
-+int gr_check_protected_task(const struct task_struct *task);
-+__u32 to_gr_audit(const __u32 reqmode);
-+int gr_set_acls(const int type);
-+
-+int gr_acl_is_enabled(void);
-+char gr_roletype_to_char(void);
-+
-+void gr_handle_alertkill(struct task_struct *task);
-+char *gr_to_filename(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+char *gr_to_filename1(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+char *gr_to_filename2(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+char *gr_to_filename3(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+
-+extern int grsec_enable_link;
-+extern int grsec_enable_fifo;
-+extern int grsec_enable_execve;
-+extern int grsec_enable_shm;
-+extern int grsec_enable_execlog;
-+extern int grsec_enable_signal;
-+extern int grsec_enable_forkfail;
-+extern int grsec_enable_time;
-+extern int grsec_enable_chroot_shmat;
-+extern int grsec_enable_chroot_findtask;
-+extern int grsec_enable_chroot_mount;
-+extern int grsec_enable_chroot_double;
-+extern int grsec_enable_chroot_pivot;
-+extern int grsec_enable_chroot_chdir;
-+extern int grsec_enable_chroot_chmod;
-+extern int grsec_enable_chroot_mknod;
-+extern int grsec_enable_chroot_fchdir;
-+extern int grsec_enable_chroot_nice;
-+extern int grsec_enable_chroot_execlog;
-+extern int grsec_enable_chroot_caps;
-+extern int grsec_enable_chroot_sysctl;
-+extern int grsec_enable_chroot_unix;
-+extern int grsec_enable_tpe;
-+extern int grsec_tpe_gid;
-+extern int grsec_enable_tpe_all;
-+extern int grsec_enable_sidcaps;
-+extern int grsec_enable_socket_all;
-+extern int grsec_socket_all_gid;
-+extern int grsec_enable_socket_client;
-+extern int grsec_socket_client_gid;
-+extern int grsec_enable_socket_server;
-+extern int grsec_socket_server_gid;
-+extern int grsec_audit_gid;
-+extern int grsec_enable_group;
-+extern int grsec_enable_audit_ipc;
-+extern int grsec_enable_audit_textrel;
-+extern int grsec_enable_mount;
-+extern int grsec_enable_chdir;
-+extern int grsec_resource_logging;
-+extern int grsec_lock;
-+
-+extern spinlock_t grsec_alert_lock;
-+extern unsigned long grsec_alert_wtime;
-+extern unsigned long grsec_alert_fyet;
-+
-+extern spinlock_t grsec_audit_lock;
-+
-+extern rwlock_t grsec_exec_file_lock;
-+
-+#define gr_task_fullpath(tsk) (tsk->exec_file ? \
-+ gr_to_filename2(tsk->exec_file->f_path.dentry, \
-+ tsk->exec_file->f_vfsmnt) : "/")
-+
-+#define gr_parent_task_fullpath(tsk) (tsk->parent->exec_file ? \
-+ gr_to_filename3(tsk->parent->exec_file->f_path.dentry, \
-+ tsk->parent->exec_file->f_vfsmnt) : "/")
-+
-+#define gr_task_fullpath0(tsk) (tsk->exec_file ? \
-+ gr_to_filename(tsk->exec_file->f_path.dentry, \
-+ tsk->exec_file->f_vfsmnt) : "/")
-+
-+#define gr_parent_task_fullpath0(tsk) (tsk->parent->exec_file ? \
-+ gr_to_filename1(tsk->parent->exec_file->f_path.dentry, \
-+ tsk->parent->exec_file->f_vfsmnt) : "/")
-+
-+#define proc_is_chrooted(tsk_a) ((tsk_a->pid > 1) && (tsk_a->fs != NULL) && \
-+ ((tsk_a->fs->root.dentry->d_inode->i_sb->s_dev != \
-+ tsk_a->nsproxy->pid_ns->child_reaper->fs->root.dentry->d_inode->i_sb->s_dev) || \
-+ (tsk_a->fs->root.dentry->d_inode->i_ino != \
-+ tsk_a->nsproxy->pid_ns->child_reaper->fs->root.dentry->d_inode->i_ino)))
-+
-+#define have_same_root(tsk_a,tsk_b) ((tsk_a->fs != NULL) && (tsk_b->fs != NULL) && \
-+ (tsk_a->fs->root.dentry->d_inode->i_sb->s_dev == \
-+ tsk_b->fs->root.dentry->d_inode->i_sb->s_dev) && \
-+ (tsk_a->fs->root.dentry->d_inode->i_ino == \
-+ tsk_b->fs->root.dentry->d_inode->i_ino))
-+
-+#define DEFAULTSECARGS(task) gr_task_fullpath(task), task->comm, \
-+ task->pid, task->uid, \
-+ task->euid, task->gid, task->egid, \
-+ gr_parent_task_fullpath(task), \
-+ task->parent->comm, task->parent->pid, \
-+ task->parent->uid, task->parent->euid, \
-+ task->parent->gid, task->parent->egid
-+
-+#define GR_CHROOT_CAPS {{ \
-+ CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
-+ CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
-+ CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
-+ CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
-+ CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
-+ CAP_TO_MASK(CAP_IPC_OWNER) , 0 }}
-+
-+#define security_learn(normal_msg,args...) \
-+({ \
-+ read_lock(&grsec_exec_file_lock); \
-+ gr_add_learn_entry(normal_msg "\n", ## args); \
-+ read_unlock(&grsec_exec_file_lock); \
-+})
-+
-+enum {
-+ GR_DO_AUDIT,
-+ GR_DONT_AUDIT,
-+ GR_DONT_AUDIT_GOOD
-+};
-+
-+enum {
-+ GR_TTYSNIFF,
-+ GR_RBAC,
-+ GR_RBAC_STR,
-+ GR_STR_RBAC,
-+ GR_RBAC_MODE2,
-+ GR_RBAC_MODE3,
-+ GR_FILENAME,
-+ GR_SYSCTL_HIDDEN,
-+ GR_NOARGS,
-+ GR_ONE_INT,
-+ GR_ONE_INT_TWO_STR,
-+ GR_ONE_STR,
-+ GR_STR_INT,
-+ GR_TWO_INT,
-+ GR_THREE_INT,
-+ GR_FIVE_INT_TWO_STR,
-+ GR_TWO_STR,
-+ GR_THREE_STR,
-+ GR_FOUR_STR,
-+ GR_STR_FILENAME,
-+ GR_FILENAME_STR,
-+ GR_FILENAME_TWO_INT,
-+ GR_FILENAME_TWO_INT_STR,
-+ GR_TEXTREL,
-+ GR_PTRACE,
-+ GR_RESOURCE,
-+ GR_CAP,
-+ GR_SIG,
-+ GR_CRASH1,
-+ GR_CRASH2,
-+ GR_PSACCT
-+};
-+
-+#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
-+#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
-+#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
-+#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
-+#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
-+#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
-+#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3)
-+#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
-+#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
-+#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
-+#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
-+#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
-+#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
-+#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
-+#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
-+#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2)
-+#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
-+#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
-+#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
-+#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
-+#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
-+#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
-+#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str)
-+#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
-+#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
-+#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
-+#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
-+#define gr_log_sig(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG, task, num)
-+#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
-+#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
-+#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9)
-+
-+void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
-+
-+#endif
-+
-+#endif
-diff -urNp linux-2.6.28.7/include/linux/grmsg.h linux-2.6.28.7/include/linux/grmsg.h
---- linux-2.6.28.7/include/linux/grmsg.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/include/linux/grmsg.h 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,108 @@
-+#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u"
-+#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%u.%u.%u.%u TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%u.%u.%u.%u TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u"
-+#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
-+#define GR_STOPMOD_MSG "denied modification of module state by "
-+#define GR_IOPERM_MSG "denied use of ioperm() by "
-+#define GR_IOPL_MSG "denied use of iopl() by "
-+#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
-+#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
-+#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
-+#define GR_KMEM_MSG "denied write of /dev/kmem by "
-+#define GR_PORT_OPEN_MSG "denied open of /dev/port by "
-+#define GR_MEM_WRITE_MSG "denied write of /dev/mem by "
-+#define GR_MEM_MMAP_MSG "denied mmap write of /dev/[k]mem by "
-+#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
-+#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%u.%u.%u.%u"
-+#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%u.%u.%u.%u"
-+#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
-+#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
-+#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
-+#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
-+#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
-+#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
-+#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
-+#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%u.%u.%u.%u %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
-+#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
-+#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
-+#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
-+#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
-+#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
-+#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
-+#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
-+#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
-+#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
-+#define GR_NPROC_MSG "denied overstep of process limit by "
-+#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
-+#define GR_EXEC_TPE_MSG "denied untrusted exec of %.950s by "
-+#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
-+#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
-+#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
-+#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
-+#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
-+#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
-+#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
-+#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
-+#define GR_FCHMOD_ACL_MSG "%s fchmod of %.950s by "
-+#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
-+#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
-+#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
-+#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
-+#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
-+#define GR_INITF_ACL_MSG "init_variables() failed %s by "
-+#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader"
-+#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbaged by "
-+#define GR_SHUTS_ACL_MSG "shutdown auth success for "
-+#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
-+#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
-+#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
-+#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
-+#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
-+#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
-+#define GR_ENABLEF_ACL_MSG "unable to load %s for "
-+#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
-+#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
-+#define GR_RELOADF_ACL_MSG "failed reload of %s for "
-+#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
-+#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
-+#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
-+#define GR_SPROLEF_ACL_MSG "special role %s failure for "
-+#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
-+#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
-+#define GR_UNSPROLEF_ACL_MSG "special role unauth of %s failure for "
-+#define GR_INVMODE_ACL_MSG "invalid mode %d by "
-+#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
-+#define GR_FAILFORK_MSG "failed fork with errno %d by "
-+#define GR_NICE_CHROOT_MSG "denied priority change by "
-+#define GR_UNISIGLOG_MSG "signal %d sent to "
-+#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
-+#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
-+#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
-+#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
-+#define GR_TIME_MSG "time set by "
-+#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
-+#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
-+#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
-+#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
-+#define GR_SOCK2_MSG "denied socket(%d,%.16s,%.16s) by "
-+#define GR_BIND_MSG "denied bind() by "
-+#define GR_CONNECT_MSG "denied connect() by "
-+#define GR_BIND_ACL_MSG "denied bind() to %u.%u.%u.%u port %u sock type %.16s protocol %.16s by "
-+#define GR_CONNECT_ACL_MSG "denied connect() to %u.%u.%u.%u port %u sock type %.16s protocol %.16s by "
-+#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%u.%u.%u.%u\t%u\t%u\t%u\t%u\t%u.%u.%u.%u"
-+#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
-+#define GR_CAP_ACL_MSG "use of %s denied for "
-+#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
-+#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
-+#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
-+#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
-+#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
-+#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
-+#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
-+#define GR_MSGQ_AUDIT_MSG "message queue created by "
-+#define GR_MSGQR_AUDIT_MSG "message queue of uid:%u euid:%u removed by "
-+#define GR_SEM_AUDIT_MSG "semaphore created by "
-+#define GR_SEMR_AUDIT_MSG "semaphore of uid:%u euid:%u removed by "
-+#define GR_SHM_AUDIT_MSG "shared memory of size %d created by "
-+#define GR_SHMR_AUDIT_MSG "shared memory of uid:%u euid:%u removed by "
-+#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
-+#define GR_TEXTREL_AUDIT_MSG "text relocation in %s, VMA:0x%08lx 0x%08lx by "
-diff -urNp linux-2.6.28.7/include/linux/grsecurity.h linux-2.6.28.7/include/linux/grsecurity.h
---- linux-2.6.28.7/include/linux/grsecurity.h 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/include/linux/grsecurity.h 2009-02-21 09:37:49.000000000 -0500
-@@ -0,0 +1,200 @@
-+#ifndef GR_SECURITY_H
-+#define GR_SECURITY_H
-+#include <linux/fs.h>
-+#include <linux/binfmts.h>
-+#include <linux/gracl.h>
-+
-+/* notify of brain-dead configs */
-+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
-+#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
-+#endif
-+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS)
-+#error "CONFIG_PAX_NOEXEC enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled."
-+#endif
-+#if defined(CONFIG_PAX_ASLR) && (defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS)
-+#error "CONFIG_PAX_ASLR enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled."
-+#endif
-+#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
-+#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
-+#endif
-+#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
-+#error "CONFIG_PAX enabled, but no PaX options are enabled."
-+#endif
-+
-+void gr_handle_brute_attach(struct task_struct *p);
-+void gr_handle_brute_check(void);
-+
-+char gr_roletype_to_char(void);
-+
-+int gr_check_user_change(int real, int effective, int fs);
-+int gr_check_group_change(int real, int effective, int fs);
-+
-+void gr_del_task_from_ip_table(struct task_struct *p);
-+
-+int gr_pid_is_chrooted(struct task_struct *p);
-+int gr_handle_chroot_nice(void);
-+int gr_handle_chroot_sysctl(const int op);
-+int gr_handle_chroot_setpriority(struct task_struct *p,
-+ const int niceval);
-+int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
-+int gr_handle_chroot_chroot(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+void gr_handle_chroot_caps(struct task_struct *task);
-+void gr_handle_chroot_chdir(struct path *path);
-+int gr_handle_chroot_chmod(const struct dentry *dentry,
-+ const struct vfsmount *mnt, const int mode);
-+int gr_handle_chroot_mknod(const struct dentry *dentry,
-+ const struct vfsmount *mnt, const int mode);
-+int gr_handle_chroot_mount(const struct dentry *dentry,
-+ const struct vfsmount *mnt,
-+ const char *dev_name);
-+int gr_handle_chroot_pivot(void);
-+int gr_handle_chroot_unix(const pid_t pid);
-+
-+int gr_handle_rawio(const struct inode *inode);
-+int gr_handle_nproc(void);
-+
-+void gr_handle_ioperm(void);
-+void gr_handle_iopl(void);
-+
-+int gr_tpe_allow(const struct file *file);
-+
-+int gr_random_pid(void);
-+
-+void gr_log_forkfail(const int retval);
-+void gr_log_timechange(void);
-+void gr_log_signal(const int sig, const struct task_struct *t);
-+void gr_log_chdir(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+void gr_log_chroot_exec(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+void gr_handle_exec_args(struct linux_binprm *bprm, char **argv);
-+void gr_log_remount(const char *devname, const int retval);
-+void gr_log_unmount(const char *devname, const int retval);
-+void gr_log_mount(const char *from, const char *to, const int retval);
-+void gr_log_msgget(const int ret, const int msgflg);
-+void gr_log_msgrm(const uid_t uid, const uid_t cuid);
-+void gr_log_semget(const int err, const int semflg);
-+void gr_log_semrm(const uid_t uid, const uid_t cuid);
-+void gr_log_shmget(const int err, const int shmflg, const size_t size);
-+void gr_log_shmrm(const uid_t uid, const uid_t cuid);
-+void gr_log_textrel(struct vm_area_struct *vma);
-+
-+int gr_handle_follow_link(const struct inode *parent,
-+ const struct inode *inode,
-+ const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+int gr_handle_fifo(const struct dentry *dentry,
-+ const struct vfsmount *mnt,
-+ const struct dentry *dir, const int flag,
-+ const int acc_mode);
-+int gr_handle_hardlink(const struct dentry *dentry,
-+ const struct vfsmount *mnt,
-+ struct inode *inode,
-+ const int mode, const char *to);
-+
-+int gr_task_is_capable(struct task_struct *task, const int cap);
-+int gr_is_capable_nolog(const int cap);
-+void gr_learn_resource(const struct task_struct *task, const int limit,
-+ const unsigned long wanted, const int gt);
-+void gr_copy_label(struct task_struct *tsk);
-+void gr_handle_crash(struct task_struct *task, const int sig);
-+int gr_handle_signal(const struct task_struct *p, const int sig);
-+int gr_check_crash_uid(const uid_t uid);
-+int gr_check_protected_task(const struct task_struct *task);
-+int gr_acl_handle_mmap(const struct file *file,
-+ const unsigned long prot);
-+int gr_acl_handle_mprotect(const struct file *file,
-+ const unsigned long prot);
-+int gr_check_hidden_task(const struct task_struct *tsk);
-+__u32 gr_acl_handle_truncate(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+__u32 gr_acl_handle_utime(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+__u32 gr_acl_handle_access(const struct dentry *dentry,
-+ const struct vfsmount *mnt, const int fmode);
-+__u32 gr_acl_handle_fchmod(const struct dentry *dentry,
-+ const struct vfsmount *mnt, mode_t mode);
-+__u32 gr_acl_handle_chmod(const struct dentry *dentry,
-+ const struct vfsmount *mnt, mode_t mode);
-+__u32 gr_acl_handle_chown(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+int gr_handle_ptrace(struct task_struct *task, const long request);
-+int gr_handle_proc_ptrace(struct task_struct *task);
-+__u32 gr_acl_handle_execve(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+int gr_check_crash_exec(const struct file *filp);
-+int gr_acl_is_enabled(void);
-+void gr_set_kernel_label(struct task_struct *task);
-+void gr_set_role_label(struct task_struct *task, const uid_t uid,
-+ const gid_t gid);
-+int gr_set_proc_label(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+__u32 gr_acl_handle_open(const struct dentry *dentry,
-+ const struct vfsmount *mnt, const int fmode);
-+__u32 gr_acl_handle_creat(const struct dentry *dentry,
-+ const struct dentry *p_dentry,
-+ const struct vfsmount *p_mnt, const int fmode,
-+ const int imode);
-+void gr_handle_create(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
-+ const struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt,
-+ const int mode);
-+__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
-+ const struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt);
-+__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+void gr_handle_delete(const ino_t ino, const dev_t dev);
-+__u32 gr_acl_handle_unlink(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
-+ const struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt,
-+ const char *from);
-+__u32 gr_acl_handle_link(const struct dentry *new_dentry,
-+ const struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt,
-+ const struct dentry *old_dentry,
-+ const struct vfsmount *old_mnt, const char *to);
-+int gr_acl_handle_rename(struct dentry *new_dentry,
-+ struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt,
-+ struct dentry *old_dentry,
-+ struct inode *old_parent_inode,
-+ struct vfsmount *old_mnt, const char *newname);
-+void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
-+ struct dentry *old_dentry,
-+ struct dentry *new_dentry,
-+ struct vfsmount *mnt, const __u8 replace);
-+__u32 gr_check_link(const struct dentry *new_dentry,
-+ const struct dentry *parent_dentry,
-+ const struct vfsmount *parent_mnt,
-+ const struct dentry *old_dentry,
-+ const struct vfsmount *old_mnt);
-+int gr_acl_handle_filldir(const struct file *file, const char *name,
-+ const unsigned int namelen, const ino_t ino);
-+
-+__u32 gr_acl_handle_unix(const struct dentry *dentry,
-+ const struct vfsmount *mnt);
-+void gr_acl_handle_exit(void);
-+void gr_acl_handle_psacct(struct task_struct *task, const long code);
-+int gr_acl_handle_procpidmem(const struct task_struct *task);
-+
-+#ifdef CONFIG_GRKERNSEC
-+void gr_handle_mem_write(void);
-+void gr_handle_kmem_write(void);
-+void gr_handle_open_port(void);
-+int gr_handle_mem_mmap(const unsigned long offset,
-+ struct vm_area_struct *vma);
-+
-+extern int grsec_enable_dmesg;
-+extern int grsec_enable_randsrc;
-+extern int grsec_enable_shm;
-+#endif
-+
-+#endif
-diff -urNp linux-2.6.28.7/include/linux/highmem.h linux-2.6.28.7/include/linux/highmem.h
---- linux-2.6.28.7/include/linux/highmem.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/highmem.h 2009-02-21 09:37:49.000000000 -0500
-@@ -124,6 +124,13 @@ static inline void clear_highpage(struct
- kunmap_atomic(kaddr, KM_USER0);
- }
-
-+static inline void sanitize_highpage(struct page *page)
-+{
-+ void *kaddr = kmap_atomic(page, KM_CLEARPAGE);
-+ clear_page(kaddr);
-+ kunmap_atomic(kaddr, KM_CLEARPAGE);
-+}
-+
- static inline void zero_user_segments(struct page *page,
- unsigned start1, unsigned end1,
- unsigned start2, unsigned end2)
-diff -urNp linux-2.6.28.7/include/linux/jbd2.h linux-2.6.28.7/include/linux/jbd2.h
---- linux-2.6.28.7/include/linux/jbd2.h 2009-02-20 22:26:39.000000000 -0500
-+++ linux-2.6.28.7/include/linux/jbd2.h 2009-02-21 09:37:49.000000000 -0500
-@@ -66,7 +66,7 @@ extern u8 jbd2_journal_enable_debug;
- } \
- } while (0)
- #else
--#define jbd_debug(f, a...) /**/
-+#define jbd_debug(f, a...) do {} while (0)
- #endif
-
- static inline void *jbd2_alloc(size_t size, gfp_t flags)
-diff -urNp linux-2.6.28.7/include/linux/jbd.h linux-2.6.28.7/include/linux/jbd.h
---- linux-2.6.28.7/include/linux/jbd.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/jbd.h 2009-02-21 09:37:49.000000000 -0500
-@@ -66,7 +66,7 @@ extern u8 journal_enable_debug;
- } \
- } while (0)
- #else
--#define jbd_debug(f, a...) /**/
-+#define jbd_debug(f, a...) do {} while (0)
- #endif
-
- static inline void *jbd_alloc(size_t size, gfp_t flags)
-diff -urNp linux-2.6.28.7/include/linux/kvm_host.h linux-2.6.28.7/include/linux/kvm_host.h
---- linux-2.6.28.7/include/linux/kvm_host.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/kvm_host.h 2009-02-21 09:37:49.000000000 -0500
-@@ -150,7 +150,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vc
- void vcpu_load(struct kvm_vcpu *vcpu);
- void vcpu_put(struct kvm_vcpu *vcpu);
-
--int kvm_init(void *opaque, unsigned int vcpu_size,
-+int kvm_init(const void *opaque, unsigned int vcpu_size,
- struct module *module);
- void kvm_exit(void);
-
-@@ -258,7 +258,7 @@ int kvm_arch_vcpu_ioctl_debug_guest(stru
- struct kvm_debug_guest *dbg);
- int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
-
--int kvm_arch_init(void *opaque);
-+int kvm_arch_init(const void *opaque);
- void kvm_arch_exit(void);
-
- int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
-diff -urNp linux-2.6.28.7/include/linux/libata.h linux-2.6.28.7/include/linux/libata.h
---- linux-2.6.28.7/include/linux/libata.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/libata.h 2009-02-21 09:37:49.000000000 -0500
-@@ -64,11 +64,11 @@
- #ifdef ATA_VERBOSE_DEBUG
- #define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
- #else
--#define VPRINTK(fmt, args...)
-+#define VPRINTK(fmt, args...) do {} while (0)
- #endif /* ATA_VERBOSE_DEBUG */
- #else
--#define DPRINTK(fmt, args...)
--#define VPRINTK(fmt, args...)
-+#define DPRINTK(fmt, args...) do {} while (0)
-+#define VPRINTK(fmt, args...) do {} while (0)
- #endif /* ATA_DEBUG */
-
- #define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __func__, ## args)
-diff -urNp linux-2.6.28.7/include/linux/mm.h linux-2.6.28.7/include/linux/mm.h
---- linux-2.6.28.7/include/linux/mm.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/mm.h 2009-02-21 09:37:49.000000000 -0500
-@@ -39,6 +39,7 @@ extern unsigned long mmap_min_addr;
- #include <asm/page.h>
- #include <asm/pgtable.h>
- #include <asm/processor.h>
-+#include <asm/mman.h>
-
- #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n))
-
-@@ -115,6 +116,10 @@ extern unsigned int kobjsize(const void
- #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */
- #define VM_SAO 0x20000000 /* Strong Access Ordering (powerpc) */
-
-+#ifdef CONFIG_PAX_PAGEEXEC
-+#define VM_PAGEEXEC 0x40000000 /* vma->vm_page_prot needs special handling */
-+#endif
-+
- #ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */
- #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
- #endif
-@@ -873,6 +878,8 @@ struct shrinker {
- extern void register_shrinker(struct shrinker *);
- extern void unregister_shrinker(struct shrinker *);
-
-+pgprot_t vm_get_page_prot(unsigned long vm_flags);
-+
- int vma_wants_writenotify(struct vm_area_struct *vma);
-
- extern pte_t *get_locked_pte(struct mm_struct *mm, unsigned long addr, spinlock_t **ptl);
-@@ -1128,6 +1135,7 @@ out:
- }
-
- extern int do_munmap(struct mm_struct *, unsigned long, size_t);
-+extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
-
- extern unsigned long do_brk(unsigned long, unsigned long);
-
-@@ -1180,6 +1188,10 @@ extern struct vm_area_struct * find_vma(
- extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
- struct vm_area_struct **pprev);
-
-+extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
-+extern void pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
-+extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
-+
- /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
- NULL if none. Assume start_addr < end_addr. */
- static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
-@@ -1196,7 +1208,6 @@ static inline unsigned long vma_pages(st
- return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
- }
-
--pgprot_t vm_get_page_prot(unsigned long vm_flags);
- struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
- int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
- unsigned long pfn, unsigned long size, pgprot_t);
-@@ -1285,5 +1296,11 @@ int vmemmap_populate_basepages(struct pa
- int vmemmap_populate(struct page *start_page, unsigned long pages, int node);
- void vmemmap_populate_print_last(void);
-
-+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
-+extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
-+#else
-+static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
-+#endif
-+
- #endif /* __KERNEL__ */
- #endif /* _LINUX_MM_H */
-diff -urNp linux-2.6.28.7/include/linux/mm_types.h linux-2.6.28.7/include/linux/mm_types.h
---- linux-2.6.28.7/include/linux/mm_types.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/mm_types.h 2009-02-21 09:37:49.000000000 -0500
-@@ -157,6 +157,8 @@ struct vm_area_struct {
- #ifdef CONFIG_NUMA
- struct mempolicy *vm_policy; /* NUMA policy for the VMA */
- #endif
-+
-+ struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
- };
-
- struct core_thread {
-@@ -256,6 +258,24 @@ struct mm_struct {
- #ifdef CONFIG_MMU_NOTIFIER
- struct mmu_notifier_mm *mmu_notifier_mm;
- #endif
-+
-+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) || defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
-+ unsigned long pax_flags;
-+#endif
-+
-+#ifdef CONFIG_PAX_DLRESOLVE
-+ unsigned long call_dl_resolve;
-+#endif
-+
-+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
-+ unsigned long call_syscall;
-+#endif
-+
-+#ifdef CONFIG_PAX_ASLR
-+ unsigned long delta_mmap; /* randomized offset */
-+ unsigned long delta_stack; /* randomized offset */
-+#endif
-+
- };
-
- #endif /* _LINUX_MM_TYPES_H */
-diff -urNp linux-2.6.28.7/include/linux/module.h linux-2.6.28.7/include/linux/module.h
---- linux-2.6.28.7/include/linux/module.h 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/module.h 2009-02-21 09:37:49.000000000 -0500
-@@ -283,16 +283,16 @@ struct module
- int (*init)(void);
-
- /* If this is non-NULL, vfree after init() returns */
-- void *module_init;
-+ void *module_init_rx, *module_init_rw;
-
- /* Here is the actual code + data, vfree'd on unload. */
-- void *module_core;
-+ void *module_core_rx, *module_core_rw;
-
- /* Here are the sizes of the init and core sections */
-- unsigned int init_size, core_size;
-+ unsigned int init_size_rw, core_size_rw;
-
- /* The size of the executable code in each section. */
-- unsigned int init_text_size, core_text_size;
-+ unsigned int init_size_rx, core_size_rx;
-
- /* The handle returned from unwind_add_table. */
- void *unwind_info;
-diff -urNp linux-2.6.28.7/include/linux/moduleloader.h linux-2.6.28.7/include/linux/moduleloader.h
---- linux-2.6.28.7/include/linux/moduleloader.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/moduleloader.h 2009-02-21 09:37:49.000000000 -0500
-@@ -17,9 +17,21 @@ int module_frob_arch_sections(Elf_Ehdr *
- sections. Returns NULL on failure. */
- void *module_alloc(unsigned long size);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+void *module_alloc_exec(unsigned long size);
-+#else
-+#define module_alloc_exec(x) module_alloc(x)
-+#endif
-+
- /* Free memory returned from module_alloc. */
- void module_free(struct module *mod, void *module_region);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+void module_free_exec(struct module *mod, void *module_region);
-+#else
-+#define module_free_exec(x, y) module_free(x, y)
-+#endif
-+
- /* Apply the given relocation to the (simplified) ELF. Return -error
- or 0. */
- int apply_relocate(Elf_Shdr *sechdrs,
-diff -urNp linux-2.6.28.7/include/linux/namei.h linux-2.6.28.7/include/linux/namei.h
---- linux-2.6.28.7/include/linux/namei.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/namei.h 2009-02-21 09:37:49.000000000 -0500
-@@ -21,7 +21,7 @@ struct nameidata {
- unsigned int flags;
- int last_type;
- unsigned depth;
-- char *saved_names[MAX_NESTED_LINKS + 1];
-+ const char *saved_names[MAX_NESTED_LINKS + 1];
-
- /* Intent data */
- union {
-@@ -84,12 +84,12 @@ extern int follow_up(struct vfsmount **,
- extern struct dentry *lock_rename(struct dentry *, struct dentry *);
- extern void unlock_rename(struct dentry *, struct dentry *);
-
--static inline void nd_set_link(struct nameidata *nd, char *path)
-+static inline void nd_set_link(struct nameidata *nd, const char *path)
- {
- nd->saved_names[nd->depth] = path;
- }
-
--static inline char *nd_get_link(struct nameidata *nd)
-+static inline const char *nd_get_link(struct nameidata *nd)
- {
- return nd->saved_names[nd->depth];
- }
-diff -urNp linux-2.6.28.7/include/linux/nodemask.h linux-2.6.28.7/include/linux/nodemask.h
---- linux-2.6.28.7/include/linux/nodemask.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/nodemask.h 2009-02-21 09:37:49.000000000 -0500
-@@ -442,11 +442,11 @@ static inline int num_node_state(enum no
-
- #define any_online_node(mask) \
- ({ \
-- int node; \
-- for_each_node_mask(node, (mask)) \
-- if (node_online(node)) \
-+ int __node; \
-+ for_each_node_mask(__node, (mask)) \
-+ if (node_online(__node)) \
- break; \
-- node; \
-+ __node; \
- })
-
- #define num_online_nodes() num_node_state(N_ONLINE)
-diff -urNp linux-2.6.28.7/include/linux/percpu.h linux-2.6.28.7/include/linux/percpu.h
---- linux-2.6.28.7/include/linux/percpu.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/percpu.h 2009-02-21 09:37:49.000000000 -0500
-@@ -50,7 +50,7 @@
- #endif
-
- #define PERCPU_ENOUGH_ROOM \
-- (__per_cpu_end - __per_cpu_start + PERCPU_MODULE_RESERVE)
-+ ((unsigned long)(__per_cpu_end - __per_cpu_start + PERCPU_MODULE_RESERVE))
- #endif /* PERCPU_ENOUGH_ROOM */
-
- /*
-diff -urNp linux-2.6.28.7/include/linux/poison.h linux-2.6.28.7/include/linux/poison.h
---- linux-2.6.28.7/include/linux/poison.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/poison.h 2009-02-21 09:37:49.000000000 -0500
-@@ -7,8 +7,8 @@
- * under normal circumstances, used to verify that nobody uses
- * non-initialized list entries.
- */
--#define LIST_POISON1 ((void *) 0x00100100)
--#define LIST_POISON2 ((void *) 0x00200200)
-+#define LIST_POISON1 ((void *) 0xFF1001FFFF1001FFULL)
-+#define LIST_POISON2 ((void *) 0xFF2002FFFF2002FFULL)
-
- /********** include/linux/timer.h **********/
- /*
-diff -urNp linux-2.6.28.7/include/linux/proc_fs.h linux-2.6.28.7/include/linux/proc_fs.h
---- linux-2.6.28.7/include/linux/proc_fs.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/proc_fs.h 2009-02-21 09:37:49.000000000 -0500
-@@ -174,6 +174,19 @@ static inline struct proc_dir_entry *pro
- return proc_create_data(name, mode, parent, proc_fops, NULL);
- }
-
-+static inline struct proc_dir_entry *proc_create_grsec(const char *name, mode_t mode,
-+ struct proc_dir_entry *parent, const struct file_operations *proc_fops)
-+{
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
-+#else
-+ return proc_create_data(name, mode, parent, proc_fops, NULL);
-+#endif
-+}
-+
-+
- static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
- mode_t mode, struct proc_dir_entry *base,
- read_proc_t *read_proc, void * data)
-diff -urNp linux-2.6.28.7/include/linux/random.h linux-2.6.28.7/include/linux/random.h
---- linux-2.6.28.7/include/linux/random.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/random.h 2009-02-21 09:37:49.000000000 -0500
-@@ -72,6 +72,11 @@ unsigned long randomize_range(unsigned l
- u32 random32(void);
- void srandom32(u32 seed);
-
-+static inline unsigned long pax_get_random_long(void)
-+{
-+ return random32() + (sizeof(long) > 4 ? (unsigned long)random32() << 32 : 0);
-+}
-+
- #endif /* __KERNEL___ */
-
- #endif /* _LINUX_RANDOM_H */
-diff -urNp linux-2.6.28.7/include/linux/sched.h linux-2.6.28.7/include/linux/sched.h
---- linux-2.6.28.7/include/linux/sched.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/sched.h 2009-02-21 09:37:49.000000000 -0500
-@@ -96,6 +96,7 @@ struct exec_domain;
- struct futex_pi_state;
- struct robust_list_head;
- struct bio;
-+struct linux_binprm;
-
- /*
- * List of flags we want to share for kernel threads,
-@@ -588,6 +589,15 @@ struct signal_struct {
- unsigned audit_tty;
- struct tty_audit_buf *tty_audit_buf;
- #endif
-+
-+#ifdef CONFIG_GRKERNSEC
-+ u32 curr_ip;
-+ u32 gr_saddr;
-+ u32 gr_daddr;
-+ u16 gr_sport;
-+ u16 gr_dport;
-+ u8 used_accept:1;
-+#endif
- };
-
- /* Context switch must be unlocked if interrupts are to be enabled */
-@@ -1073,7 +1083,7 @@ struct sched_rt_entity {
-
- struct task_struct {
- volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
-- void *stack;
-+ struct thread_info *stack;
- atomic_t usage;
- unsigned int flags; /* per process flags, defined below */
- unsigned int ptrace;
-@@ -1138,10 +1148,9 @@ struct task_struct {
- pid_t pid;
- pid_t tgid;
-
--#ifdef CONFIG_CC_STACKPROTECTOR
- /* Canary value for the -fstack-protector gcc feature */
- unsigned long stack_canary;
--#endif
-+
- /*
- * pointers to (original) parent process, youngest child, younger sibling,
- * older sibling, respectively. (p->father can be replaced with
-@@ -1169,8 +1178,8 @@ struct task_struct {
- struct list_head thread_group;
-
- struct completion *vfork_done; /* for vfork() */
-- int __user *set_child_tid; /* CLONE_CHILD_SETTID */
-- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
-+ pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */
-+ pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
-
- cputime_t utime, stime, utimescaled, stimescaled;
- cputime_t gtime;
-@@ -1355,8 +1364,64 @@ struct task_struct {
- unsigned long default_timer_slack_ns;
-
- struct list_head *scm_work_list;
-+
-+#ifdef CONFIG_GRKERNSEC
-+ /* grsecurity */
-+ struct acl_subject_label *acl;
-+ struct acl_role_label *role;
-+ struct file *exec_file;
-+ u16 acl_role_id;
-+ u8 acl_sp_role;
-+ u8 is_writable;
-+ u8 brute;
-+#endif
-+
- };
-
-+#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */
-+#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */
-+#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */
-+#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */
-+/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */
-+#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */
-+
-+#ifdef CONFIG_PAX_SOFTMODE
-+extern unsigned int pax_softmode;
-+#endif
-+
-+extern int pax_check_flags(unsigned long *);
-+
-+/* if tsk != current then task_lock must be held on it */
-+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
-+static inline unsigned long pax_get_flags(struct task_struct *tsk)
-+{
-+ if (likely(tsk->mm))
-+ return tsk->mm->pax_flags;
-+ else
-+ return 0UL;
-+}
-+
-+/* if tsk != current then task_lock must be held on it */
-+static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
-+{
-+ if (likely(tsk->mm)) {
-+ tsk->mm->pax_flags = flags;
-+ return 0;
-+ }
-+ return -EINVAL;
-+}
-+#endif
-+
-+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
-+extern void pax_set_initial_flags(struct linux_binprm *bprm);
-+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
-+extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
-+#endif
-+
-+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
-+void pax_report_insns(void *pc, void *sp);
-+void pax_report_refcount_overflow(struct pt_regs *regs);
-+
- /*
- * Priority of a process goes from 0..MAX_PRIO-1, valid RT
- * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH
-@@ -1899,7 +1964,7 @@ extern void __cleanup_sighand(struct sig
- extern void exit_itimers(struct signal_struct *);
- extern void flush_itimer_signals(void);
-
--extern NORET_TYPE void do_group_exit(int);
-+extern NORET_TYPE void do_group_exit(int) ATTRIB_NORET;
-
- extern void daemonize(const char *, ...);
- extern int allow_signal(int);
-@@ -2002,8 +2067,8 @@ static inline void unlock_task_sighand(s
-
- #ifndef __HAVE_THREAD_FUNCTIONS
-
--#define task_thread_info(task) ((struct thread_info *)(task)->stack)
--#define task_stack_page(task) ((task)->stack)
-+#define task_thread_info(task) ((task)->stack)
-+#define task_stack_page(task) ((void *)(task)->stack)
-
- static inline void setup_thread_stack(struct task_struct *p, struct task_struct *org)
- {
-diff -urNp linux-2.6.28.7/include/linux/screen_info.h linux-2.6.28.7/include/linux/screen_info.h
---- linux-2.6.28.7/include/linux/screen_info.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/screen_info.h 2009-02-21 09:37:49.000000000 -0500
-@@ -42,7 +42,8 @@ struct screen_info {
- __u16 pages; /* 0x32 */
- __u16 vesa_attributes; /* 0x34 */
- __u32 capabilities; /* 0x36 */
-- __u8 _reserved[6]; /* 0x3a */
-+ __u16 vesapm_size; /* 0x3a */
-+ __u8 _reserved[4]; /* 0x3c */
- } __attribute__((packed));
-
- #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
-diff -urNp linux-2.6.28.7/include/linux/security.h linux-2.6.28.7/include/linux/security.h
---- linux-2.6.28.7/include/linux/security.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/security.h 2009-02-21 09:37:49.000000000 -0500
-@@ -32,6 +32,7 @@
- #include <linux/sched.h>
- #include <linux/key.h>
- #include <linux/xfrm.h>
-+#include <linux/grsecurity.h>
- #include <net/flow.h>
-
- /* Maximum number of letters for an LSM name string */
-diff -urNp linux-2.6.28.7/include/linux/shm.h linux-2.6.28.7/include/linux/shm.h
---- linux-2.6.28.7/include/linux/shm.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/shm.h 2009-02-21 09:37:49.000000000 -0500
-@@ -95,6 +95,10 @@ struct shmid_kernel /* private to the ke
- pid_t shm_cprid;
- pid_t shm_lprid;
- struct user_struct *mlock_user;
-+#ifdef CONFIG_GRKERNSEC
-+ time_t shm_createtime;
-+ pid_t shm_lapid;
-+#endif
- };
-
- /* shm_mode upper byte flags */
-diff -urNp linux-2.6.28.7/include/linux/slab.h linux-2.6.28.7/include/linux/slab.h
---- linux-2.6.28.7/include/linux/slab.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/slab.h 2009-02-21 09:37:49.000000000 -0500
-@@ -73,10 +73,9 @@
- * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
- * Both make kfree a no-op.
- */
--#define ZERO_SIZE_PTR ((void *)16)
-+#define ZERO_SIZE_PTR ((void *)-1024L)
-
--#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
-- (unsigned long)ZERO_SIZE_PTR)
-+#define ZERO_OR_NULL_PTR(x) (!(x) || (x) == ZERO_SIZE_PTR)
-
- /*
- * struct kmem_cache related prototypes
-diff -urNp linux-2.6.28.7/include/linux/sysctl.h linux-2.6.28.7/include/linux/sysctl.h
---- linux-2.6.28.7/include/linux/sysctl.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/sysctl.h 2009-02-21 09:37:49.000000000 -0500
-@@ -165,7 +165,11 @@ enum
- KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
- };
-
--
-+#ifdef CONFIG_PAX_SOFTMODE
-+enum {
-+ PAX_SOFTMODE=1 /* PaX: disable/enable soft mode */
-+};
-+#endif
-
- /* CTL_VM names: */
- enum
-diff -urNp linux-2.6.28.7/include/linux/thread_info.h linux-2.6.28.7/include/linux/thread_info.h
---- linux-2.6.28.7/include/linux/thread_info.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/thread_info.h 2009-02-21 09:37:49.000000000 -0500
-@@ -23,7 +23,7 @@ struct restart_block {
- };
- /* For futex_wait */
- struct {
-- u32 *uaddr;
-+ u32 __user *uaddr;
- u32 val;
- u32 flags;
- u32 bitset;
-diff -urNp linux-2.6.28.7/include/linux/uaccess.h linux-2.6.28.7/include/linux/uaccess.h
---- linux-2.6.28.7/include/linux/uaccess.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/uaccess.h 2009-02-21 09:37:49.000000000 -0500
-@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_
- long ret; \
- mm_segment_t old_fs = get_fs(); \
- \
-- set_fs(KERNEL_DS); \
- pagefault_disable(); \
-+ set_fs(KERNEL_DS); \
- ret = __get_user(retval, (__force typeof(retval) __user *)(addr)); \
-- pagefault_enable(); \
- set_fs(old_fs); \
-+ pagefault_enable(); \
- ret; \
- })
-
-diff -urNp linux-2.6.28.7/include/linux/vmalloc.h linux-2.6.28.7/include/linux/vmalloc.h
---- linux-2.6.28.7/include/linux/vmalloc.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/linux/vmalloc.h 2009-02-21 09:37:49.000000000 -0500
-@@ -13,6 +13,11 @@ struct vm_area_struct; /* vma defining
- #define VM_MAP 0x00000004 /* vmap()ed pages */
- #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
- #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+#define VM_KERNEXEC 0x00000020 /* allocate from executable kernel memory range */
-+#endif
-+
- /* bits [20..32] reserved for arch specific ioremap internals */
-
- /*
-diff -urNp linux-2.6.28.7/include/net/sctp/sctp.h linux-2.6.28.7/include/net/sctp/sctp.h
---- linux-2.6.28.7/include/net/sctp/sctp.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/net/sctp/sctp.h 2009-02-21 09:37:49.000000000 -0500
-@@ -309,8 +309,8 @@ extern int sctp_debug_flag;
-
- #else /* SCTP_DEBUG */
-
--#define SCTP_DEBUG_PRINTK(whatever...)
--#define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
-+#define SCTP_DEBUG_PRINTK(whatever...) do {} while (0)
-+#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) do {} while (0)
- #define SCTP_ENABLE_DEBUG
- #define SCTP_DISABLE_DEBUG
- #define SCTP_ASSERT(expr, str, func)
-diff -urNp linux-2.6.28.7/include/sound/core.h linux-2.6.28.7/include/sound/core.h
---- linux-2.6.28.7/include/sound/core.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/sound/core.h 2009-02-21 09:37:49.000000000 -0500
-@@ -405,7 +405,7 @@ static inline int __snd_bug_on(void)
- */
- #define snd_printdd(format, args...) snd_printk(format, ##args)
- #else
--#define snd_printdd(format, args...) /* nothing */
-+#define snd_printdd(format, args...) do {} while (0)
- #endif
-
-
-diff -urNp linux-2.6.28.7/include/video/uvesafb.h linux-2.6.28.7/include/video/uvesafb.h
---- linux-2.6.28.7/include/video/uvesafb.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/include/video/uvesafb.h 2009-02-21 09:37:49.000000000 -0500
-@@ -175,6 +175,7 @@ struct uvesafb_par {
- u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */
- u8 pmi_setpal; /* PMI for palette changes */
- u16 *pmi_base; /* protected mode interface location */
-+ u8 *pmi_code; /* protected mode code location */
- void *pmi_start;
- void *pmi_pal;
- u8 *vbe_state_orig; /*
-diff -urNp linux-2.6.28.7/init/do_mounts.c linux-2.6.28.7/init/do_mounts.c
---- linux-2.6.28.7/init/do_mounts.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/do_mounts.c 2009-02-21 09:37:49.000000000 -0500
-@@ -214,11 +214,11 @@ static void __init get_fs_names(char *pa
-
- static int __init do_mount_root(char *name, char *fs, int flags, void *data)
- {
-- int err = sys_mount(name, "/root", fs, flags, data);
-+ int err = sys_mount((char __user *)name, (char __user *)"/root", (char __user *)fs, flags, (void __user *)data);
- if (err)
- return err;
-
-- sys_chdir("/root");
-+ sys_chdir((char __user *)"/root");
- ROOT_DEV = current->fs->pwd.mnt->mnt_sb->s_dev;
- printk("VFS: Mounted root (%s filesystem)%s.\n",
- current->fs->pwd.mnt->mnt_sb->s_type->name,
-@@ -308,18 +308,18 @@ void __init change_floppy(char *fmt, ...
- va_start(args, fmt);
- vsprintf(buf, fmt, args);
- va_end(args);
-- fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
-+ fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
- if (fd >= 0) {
- sys_ioctl(fd, FDEJECT, 0);
- sys_close(fd);
- }
- printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
-- fd = sys_open("/dev/console", O_RDWR, 0);
-+ fd = sys_open((char __user *)"/dev/console", O_RDWR, 0);
- if (fd >= 0) {
- sys_ioctl(fd, TCGETS, (long)&termios);
- termios.c_lflag &= ~ICANON;
- sys_ioctl(fd, TCSETSF, (long)&termios);
-- sys_read(fd, &c, 1);
-+ sys_read(fd, (char __user *)&c, 1);
- termios.c_lflag |= ICANON;
- sys_ioctl(fd, TCSETSF, (long)&termios);
- sys_close(fd);
-@@ -406,7 +406,7 @@ void __init prepare_namespace(void)
-
- mount_root();
- out:
-- sys_mount(".", "/", NULL, MS_MOVE, NULL);
-- sys_chroot(".");
-+ sys_mount((char __user *)".", (char __user *)"/", NULL, MS_MOVE, NULL);
-+ sys_chroot((char __user *)".");
- }
-
-diff -urNp linux-2.6.28.7/init/do_mounts.h linux-2.6.28.7/init/do_mounts.h
---- linux-2.6.28.7/init/do_mounts.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/do_mounts.h 2009-02-21 09:37:49.000000000 -0500
-@@ -14,15 +14,15 @@ extern int root_mountflags;
-
- static inline int create_dev(char *name, dev_t dev)
- {
-- sys_unlink(name);
-- return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
-+ sys_unlink((char __user *)name);
-+ return sys_mknod((char __user *)name, S_IFBLK|0600, new_encode_dev(dev));
- }
-
- #if BITS_PER_LONG == 32
- static inline u32 bstat(char *name)
- {
- struct stat64 stat;
-- if (sys_stat64(name, &stat) != 0)
-+ if (sys_stat64((char __user *)name, (struct stat64 __user *)&stat) != 0)
- return 0;
- if (!S_ISBLK(stat.st_mode))
- return 0;
-diff -urNp linux-2.6.28.7/init/do_mounts_initrd.c linux-2.6.28.7/init/do_mounts_initrd.c
---- linux-2.6.28.7/init/do_mounts_initrd.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/do_mounts_initrd.c 2009-02-21 09:37:49.000000000 -0500
-@@ -32,7 +32,7 @@ static int __init do_linuxrc(void * shel
- sys_close(old_fd);sys_close(root_fd);
- sys_close(0);sys_close(1);sys_close(2);
- sys_setsid();
-- (void) sys_open("/dev/console",O_RDWR,0);
-+ (void) sys_open((const char __user *)"/dev/console",O_RDWR,0);
- (void) sys_dup(0);
- (void) sys_dup(0);
- return kernel_execve(shell, argv, envp_init);
-@@ -47,13 +47,13 @@ static void __init handle_initrd(void)
- create_dev("/dev/root.old", Root_RAM0);
- /* mount initrd on rootfs' /root */
- mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
-- sys_mkdir("/old", 0700);
-- root_fd = sys_open("/", 0, 0);
-- old_fd = sys_open("/old", 0, 0);
-+ sys_mkdir((const char __user *)"/old", 0700);
-+ root_fd = sys_open((const char __user *)"/", 0, 0);
-+ old_fd = sys_open((const char __user *)"/old", 0, 0);
- /* move initrd over / and chdir/chroot in initrd root */
-- sys_chdir("/root");
-- sys_mount(".", "/", NULL, MS_MOVE, NULL);
-- sys_chroot(".");
-+ sys_chdir((const char __user *)"/root");
-+ sys_mount((char __user *)".", (char __user *)"/", NULL, MS_MOVE, NULL);
-+ sys_chroot((const char __user *)".");
-
- /*
- * In case that a resume from disk is carried out by linuxrc or one of
-@@ -70,15 +70,15 @@ static void __init handle_initrd(void)
-
- /* move initrd to rootfs' /old */
- sys_fchdir(old_fd);
-- sys_mount("/", ".", NULL, MS_MOVE, NULL);
-+ sys_mount((char __user *)"/", (char __user *)".", NULL, MS_MOVE, NULL);
- /* switch root and cwd back to / of rootfs */
- sys_fchdir(root_fd);
-- sys_chroot(".");
-+ sys_chroot((const char __user *)".");
- sys_close(old_fd);
- sys_close(root_fd);
-
- if (new_decode_dev(real_root_dev) == Root_RAM0) {
-- sys_chdir("/old");
-+ sys_chdir((const char __user *)"/old");
- return;
- }
-
-@@ -86,17 +86,17 @@ static void __init handle_initrd(void)
- mount_root();
-
- printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
-- error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
-+ error = sys_mount((char __user *)"/old", (char __user *)"/root/initrd", NULL, MS_MOVE, NULL);
- if (!error)
- printk("okay\n");
- else {
-- int fd = sys_open("/dev/root.old", O_RDWR, 0);
-+ int fd = sys_open((const char __user *)"/dev/root.old", O_RDWR, 0);
- if (error == -ENOENT)
- printk("/initrd does not exist. Ignored.\n");
- else
- printk("failed\n");
- printk(KERN_NOTICE "Unmounting old root\n");
-- sys_umount("/old", MNT_DETACH);
-+ sys_umount((char __user *)"/old", MNT_DETACH);
- printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
- if (fd < 0) {
- error = fd;
-@@ -119,11 +119,11 @@ int __init initrd_load(void)
- * mounted in the normal path.
- */
- if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
-- sys_unlink("/initrd.image");
-+ sys_unlink((const char __user *)"/initrd.image");
- handle_initrd();
- return 1;
- }
- }
-- sys_unlink("/initrd.image");
-+ sys_unlink((const char __user *)"/initrd.image");
- return 0;
- }
-diff -urNp linux-2.6.28.7/init/do_mounts_md.c linux-2.6.28.7/init/do_mounts_md.c
---- linux-2.6.28.7/init/do_mounts_md.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/do_mounts_md.c 2009-02-21 09:37:49.000000000 -0500
-@@ -171,7 +171,7 @@ static void __init md_setup_drive(void)
- partitioned ? "_d" : "", minor,
- md_setup_args[ent].device_names);
-
-- fd = sys_open(name, 0, 0);
-+ fd = sys_open((char __user *)name, 0, 0);
- if (fd < 0) {
- printk(KERN_ERR "md: open failed - cannot start "
- "array %s\n", name);
-@@ -234,7 +234,7 @@ static void __init md_setup_drive(void)
- * array without it
- */
- sys_close(fd);
-- fd = sys_open(name, 0, 0);
-+ fd = sys_open((char __user *)name, 0, 0);
- sys_ioctl(fd, BLKRRPART, 0);
- }
- sys_close(fd);
-@@ -283,7 +283,7 @@ static void autodetect_raid(void)
- printk(KERN_INFO "md: If you don't use raid, use raid=noautodetect\n");
- while (driver_probe_done() < 0)
- msleep(100);
-- fd = sys_open("/dev/md0", 0, 0);
-+ fd = sys_open((char __user *)"/dev/md0", 0, 0);
- if (fd >= 0) {
- sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
- sys_close(fd);
-diff -urNp linux-2.6.28.7/init/initramfs.c linux-2.6.28.7/init/initramfs.c
---- linux-2.6.28.7/init/initramfs.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/initramfs.c 2009-02-21 09:37:49.000000000 -0500
-@@ -276,7 +276,7 @@ static int __init maybe_link(void)
- if (nlink >= 2) {
- char *old = find_link(major, minor, ino, mode, collected);
- if (old)
-- return (sys_link(old, collected) < 0) ? -1 : 1;
-+ return (sys_link((char __user *)old, (char __user *)collected) < 0) ? -1 : 1;
- }
- return 0;
- }
-@@ -285,11 +285,11 @@ static void __init clean_path(char *path
- {
- struct stat st;
-
-- if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) {
-+ if (!sys_newlstat((char __user *)path, (struct stat __user *)&st) && (st.st_mode^mode) & S_IFMT) {
- if (S_ISDIR(st.st_mode))
-- sys_rmdir(path);
-+ sys_rmdir((char __user *)path);
- else
-- sys_unlink(path);
-+ sys_unlink((char __user *)path);
- }
- }
-
-@@ -312,7 +312,7 @@ static int __init do_name(void)
- int openflags = O_WRONLY|O_CREAT;
- if (ml != 1)
- openflags |= O_TRUNC;
-- wfd = sys_open(collected, openflags, mode);
-+ wfd = sys_open((char __user *)collected, openflags, mode);
-
- if (wfd >= 0) {
- sys_fchown(wfd, uid, gid);
-@@ -322,16 +322,16 @@ static int __init do_name(void)
- }
- }
- } else if (S_ISDIR(mode)) {
-- sys_mkdir(collected, mode);
-- sys_chown(collected, uid, gid);
-- sys_chmod(collected, mode);
-+ sys_mkdir((char __user *)collected, mode);
-+ sys_chown((char __user *)collected, uid, gid);
-+ sys_chmod((char __user *)collected, mode);
- dir_add(collected, mtime);
- } else if (S_ISBLK(mode) || S_ISCHR(mode) ||
- S_ISFIFO(mode) || S_ISSOCK(mode)) {
- if (maybe_link() == 0) {
-- sys_mknod(collected, mode, rdev);
-- sys_chown(collected, uid, gid);
-- sys_chmod(collected, mode);
-+ sys_mknod((char __user *)collected, mode, rdev);
-+ sys_chown((char __user *)collected, uid, gid);
-+ sys_chmod((char __user *)collected, mode);
- do_utime(collected, mtime);
- }
- }
-@@ -341,7 +341,7 @@ static int __init do_name(void)
- static int __init do_copy(void)
- {
- if (count >= body_len) {
-- sys_write(wfd, victim, body_len);
-+ sys_write(wfd, (char __user *)victim, body_len);
- sys_close(wfd);
- do_utime(vcollected, mtime);
- kfree(vcollected);
-@@ -349,7 +349,7 @@ static int __init do_copy(void)
- state = SkipIt;
- return 0;
- } else {
-- sys_write(wfd, victim, count);
-+ sys_write(wfd, (char __user *)victim, count);
- body_len -= count;
- eat(count);
- return 1;
-@@ -360,8 +360,8 @@ static int __init do_symlink(void)
- {
- collected[N_ALIGN(name_len) + body_len] = '\0';
- clean_path(collected, 0);
-- sys_symlink(collected + N_ALIGN(name_len), collected);
-- sys_lchown(collected, uid, gid);
-+ sys_symlink((char __user *)collected + N_ALIGN(name_len), (char __user *)collected);
-+ sys_lchown((char __user *)collected, uid, gid);
- do_utime(collected, mtime);
- state = SkipIt;
- next_state = Reset;
-diff -urNp linux-2.6.28.7/init/Kconfig linux-2.6.28.7/init/Kconfig
---- linux-2.6.28.7/init/Kconfig 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/Kconfig 2009-02-21 09:37:49.000000000 -0500
-@@ -572,6 +572,7 @@ config SYSCTL_SYSCALL
- config KALLSYMS
- bool "Load all symbols for debugging/ksymoops" if EMBEDDED
- default y
-+ depends on !GRKERNSEC_HIDESYM
- help
- Say Y here to let the kernel print out symbolic crash information and
- symbolic stack backtraces. This increases the size of the kernel
-@@ -822,9 +823,9 @@ config HAVE_GENERIC_DMA_COHERENT
-
- config SLABINFO
- bool
-- depends on PROC_FS
-+ depends on PROC_FS && !GRKERNSEC_PROC_ADD
- depends on SLAB || SLUB_DEBUG
-- default y
-+ default n
-
- config RT_MUTEXES
- boolean
-diff -urNp linux-2.6.28.7/init/main.c linux-2.6.28.7/init/main.c
---- linux-2.6.28.7/init/main.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/main.c 2009-02-21 09:37:49.000000000 -0500
-@@ -104,6 +104,7 @@ static inline void mark_rodata_ro(void)
- #ifdef CONFIG_TC
- extern void tc_init(void);
- #endif
-+extern void grsecurity_init(void);
-
- enum system_states system_state;
- EXPORT_SYMBOL(system_state);
-@@ -190,6 +191,40 @@ static int __init set_reset_devices(char
-
- __setup("reset_devices", set_reset_devices);
-
-+#if defined(CONFIG_PAX_MEMORY_UDEREF) && defined(CONFIG_X86_32)
-+static int __init setup_pax_nouderef(char *str)
-+{
-+ unsigned int cpu;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ for (cpu = 0; cpu < NR_CPUS; cpu++)
-+ get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_DS].b = 0x00cf9300;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ return 1;
-+}
-+__setup("pax_nouderef", setup_pax_nouderef);
-+#endif
-+
-+#ifdef CONFIG_PAX_SOFTMODE
-+unsigned int pax_softmode;
-+
-+static int __init setup_pax_softmode(char *str)
-+{
-+ get_option(&str, &pax_softmode);
-+ return 1;
-+}
-+__setup("pax_softmode=", setup_pax_softmode);
-+#endif
-+
- static char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
- char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
- static const char *panic_later, *panic_param;
-@@ -388,7 +423,7 @@ static void __init setup_nr_cpu_ids(void
- }
-
- #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
--unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
-+unsigned long __per_cpu_offset[NR_CPUS] __read_only;
-
- EXPORT_SYMBOL(__per_cpu_offset);
-
-@@ -704,6 +739,7 @@ int do_one_initcall(initcall_t fn)
- {
- int count = preempt_count();
- ktime_t delta;
-+ const char *msg1 = "", *msg2 = "";
- char msgbuf[64];
- struct boot_trace it;
-
-@@ -730,15 +766,15 @@ int do_one_initcall(initcall_t fn)
- sprintf(msgbuf, "error code %d ", it.result);
-
- if (preempt_count() != count) {
-- strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf));
-+ msg1 = " preemption imbalance";
- preempt_count() = count;
- }
- if (irqs_disabled()) {
-- strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
-+ msg2 = " disabled interrupts";
- local_irq_enable();
- }
-- if (msgbuf[0]) {
-- printk("initcall %pF returned with %s\n", fn, msgbuf);
-+ if (msgbuf[0] || *msg1 || *msg2) {
-+ printk("initcall %pF returned with %s%s%s\n", fn, msgbuf, msg1, msg2);
- }
-
- return it.result;
-@@ -877,6 +913,8 @@ static int __init kernel_init(void * unu
- prepare_namespace();
- }
-
-+ grsecurity_init();
-+
- /*
- * Ok, we have completed the initial bootup, and
- * we're essentially up and running. Get rid of the
-diff -urNp linux-2.6.28.7/init/noinitramfs.c linux-2.6.28.7/init/noinitramfs.c
---- linux-2.6.28.7/init/noinitramfs.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/init/noinitramfs.c 2009-02-21 09:37:49.000000000 -0500
-@@ -29,7 +29,7 @@ static int __init default_rootfs(void)
- {
- int err;
-
-- err = sys_mkdir("/dev", 0755);
-+ err = sys_mkdir((const char __user *)"/dev", 0755);
- if (err < 0)
- goto out;
-
-@@ -39,7 +39,7 @@ static int __init default_rootfs(void)
- if (err < 0)
- goto out;
-
-- err = sys_mkdir("/root", 0700);
-+ err = sys_mkdir((const char __user *)"/root", 0700);
- if (err < 0)
- goto out;
-
-diff -urNp linux-2.6.28.7/ipc/ipc_sysctl.c linux-2.6.28.7/ipc/ipc_sysctl.c
---- linux-2.6.28.7/ipc/ipc_sysctl.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/ipc/ipc_sysctl.c 2009-02-21 09:37:49.000000000 -0500
-@@ -267,7 +267,7 @@ static struct ctl_table ipc_kern_table[]
- .extra1 = &zero,
- .extra2 = &one,
- },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static struct ctl_table ipc_root_table[] = {
-@@ -277,7 +277,7 @@ static struct ctl_table ipc_root_table[]
- .mode = 0555,
- .child = ipc_kern_table,
- },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static int __init ipc_sysctl_init(void)
-diff -urNp linux-2.6.28.7/ipc/msg.c linux-2.6.28.7/ipc/msg.c
---- linux-2.6.28.7/ipc/msg.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/ipc/msg.c 2009-02-21 09:37:49.000000000 -0500
-@@ -314,6 +314,7 @@ SYSCALL_DEFINE2(msgget, key_t, key, int,
- struct ipc_namespace *ns;
- struct ipc_ops msg_ops;
- struct ipc_params msg_params;
-+ long err;
-
- ns = current->nsproxy->ipc_ns;
-
-@@ -324,7 +325,11 @@ SYSCALL_DEFINE2(msgget, key_t, key, int,
- msg_params.key = key;
- msg_params.flg = msgflg;
-
-- return ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params);
-+ err = ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params);
-+
-+ gr_log_msgget(err, msgflg);
-+
-+ return err;
- }
-
- static inline unsigned long
-@@ -434,6 +439,7 @@ static int msgctl_down(struct ipc_namesp
-
- switch (cmd) {
- case IPC_RMID:
-+ gr_log_msgrm(ipcp->uid, ipcp->cuid);
- freeque(ns, ipcp);
- goto out_up;
- case IPC_SET:
-diff -urNp linux-2.6.28.7/ipc/sem.c linux-2.6.28.7/ipc/sem.c
---- linux-2.6.28.7/ipc/sem.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/ipc/sem.c 2009-02-21 09:37:49.000000000 -0500
-@@ -313,6 +313,7 @@ SYSCALL_DEFINE3(semget, key_t, key, int,
- struct ipc_namespace *ns;
- struct ipc_ops sem_ops;
- struct ipc_params sem_params;
-+ long err;
-
- ns = current->nsproxy->ipc_ns;
-
-@@ -327,7 +328,11 @@ SYSCALL_DEFINE3(semget, key_t, key, int,
- sem_params.flg = semflg;
- sem_params.u.nsems = nsems;
-
-- return ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params);
-+ err = ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params);
-+
-+ gr_log_semget(err, semflg);
-+
-+ return err;
- }
-
- /*
-@@ -870,6 +875,7 @@ static int semctl_down(struct ipc_namesp
-
- switch(cmd){
- case IPC_RMID:
-+ gr_log_semrm(ipcp->uid, ipcp->cuid);
- freeary(ns, ipcp);
- goto out_up;
- case IPC_SET:
-diff -urNp linux-2.6.28.7/ipc/shm.c linux-2.6.28.7/ipc/shm.c
---- linux-2.6.28.7/ipc/shm.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/ipc/shm.c 2009-02-21 09:37:49.000000000 -0500
-@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_name
- static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
- #endif
-
-+#ifdef CONFIG_GRKERNSEC
-+extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
-+ const time_t shm_createtime, const uid_t cuid,
-+ const int shmid);
-+extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
-+ const time_t shm_createtime);
-+#endif
-+
- void shm_init_ns(struct ipc_namespace *ns)
- {
- ns->shm_ctlmax = SHMMAX;
-@@ -87,6 +95,8 @@ static void do_shm_rmid(struct ipc_names
- struct shmid_kernel *shp;
- shp = container_of(ipcp, struct shmid_kernel, shm_perm);
-
-+ gr_log_shmrm(shp->shm_perm.uid, shp->shm_perm.cuid);
-+
- if (shp->shm_nattch){
- shp->shm_perm.mode |= SHM_DEST;
- /* Do not find it any more */
-@@ -392,6 +402,14 @@ static int newseg(struct ipc_namespace *
- shp->shm_lprid = 0;
- shp->shm_atim = shp->shm_dtim = 0;
- shp->shm_ctim = get_seconds();
-+#ifdef CONFIG_GRKERNSEC
-+ {
-+ struct timespec timeval;
-+ do_posix_clock_monotonic_gettime(&timeval);
-+
-+ shp->shm_createtime = timeval.tv_sec;
-+ }
-+#endif
- shp->shm_segsz = size;
- shp->shm_nattch = 0;
- shp->shm_file = file;
-@@ -445,6 +463,7 @@ SYSCALL_DEFINE3(shmget, key_t, key, size
- struct ipc_namespace *ns;
- struct ipc_ops shm_ops;
- struct ipc_params shm_params;
-+ long err;
-
- ns = current->nsproxy->ipc_ns;
-
-@@ -456,7 +475,11 @@ SYSCALL_DEFINE3(shmget, key_t, key, size
- shm_params.flg = shmflg;
- shm_params.u.size = size;
-
-- return ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params);
-+ err = ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params);
-+
-+ gr_log_shmget(err, shmflg, size);
-+
-+ return err;
- }
-
- static inline unsigned long copy_shmid_to_user(void __user *buf, struct shmid64_ds *in, int version)
-@@ -877,9 +900,21 @@ long do_shmat(int shmid, char __user *sh
- if (err)
- goto out_unlock;
-
-+#ifdef CONFIG_GRKERNSEC
-+ if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
-+ shp->shm_perm.cuid, shmid) ||
-+ !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
-+ err = -EACCES;
-+ goto out_unlock;
-+ }
-+#endif
-+
- path.dentry = dget(shp->shm_file->f_path.dentry);
- path.mnt = shp->shm_file->f_path.mnt;
- shp->shm_nattch++;
-+#ifdef CONFIG_GRKERNSEC
-+ shp->shm_lapid = current->pid;
-+#endif
- size = i_size_read(path.dentry->d_inode);
- shm_unlock(shp);
-
-diff -urNp linux-2.6.28.7/kernel/acct.c linux-2.6.28.7/kernel/acct.c
---- linux-2.6.28.7/kernel/acct.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/acct.c 2009-02-21 09:37:49.000000000 -0500
-@@ -573,7 +573,7 @@ static void do_acct_process(struct bsd_a
- */
- flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
- current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
-- file->f_op->write(file, (char *)&ac,
-+ file->f_op->write(file, (char __user *)&ac,
- sizeof(acct_t), &file->f_pos);
- current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim;
- set_fs(fs);
-diff -urNp linux-2.6.28.7/kernel/capability.c linux-2.6.28.7/kernel/capability.c
---- linux-2.6.28.7/kernel/capability.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/capability.c 2009-02-21 09:37:49.000000000 -0500
-@@ -498,10 +498,21 @@ SYSCALL_DEFINE2(capset, cap_user_header_
- */
- int capable(int cap)
- {
-- if (has_capability(current, cap)) {
-+ if (has_capability(current, cap) && gr_task_is_capable(current, cap)) {
- current->flags |= PF_SUPERPRIV;
- return 1;
- }
- return 0;
- }
-+
-+int capable_nolog(int cap)
-+{
-+ if (has_capability(current, cap) && gr_is_capable_nolog(cap)) {
-+ current->flags |= PF_SUPERPRIV;
-+ return 1;
-+ }
-+ return 0;
-+}
-+
- EXPORT_SYMBOL(capable);
-+EXPORT_SYMBOL(capable_nolog);
-diff -urNp linux-2.6.28.7/kernel/configs.c linux-2.6.28.7/kernel/configs.c
---- linux-2.6.28.7/kernel/configs.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/configs.c 2009-02-21 09:37:49.000000000 -0500
-@@ -73,8 +73,19 @@ static int __init ikconfig_init(void)
- struct proc_dir_entry *entry;
-
- /* create the current config file */
-+#ifdef CONFIG_GRKERNSEC_PROC_ADD
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
-+ &ikconfig_file_ops);
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
-+ &ikconfig_file_ops);
-+#endif
-+#else
- entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
- &ikconfig_file_ops);
-+#endif
-+
- if (!entry)
- return -ENOMEM;
-
-diff -urNp linux-2.6.28.7/kernel/cpu.c linux-2.6.28.7/kernel/cpu.c
---- linux-2.6.28.7/kernel/cpu.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/cpu.c 2009-02-21 09:37:49.000000000 -0500
-@@ -40,7 +40,7 @@ EXPORT_SYMBOL(cpu_possible_map);
- /* Serializes the updates to cpu_online_map, cpu_present_map */
- static DEFINE_MUTEX(cpu_add_remove_lock);
-
--static __cpuinitdata RAW_NOTIFIER_HEAD(cpu_chain);
-+static RAW_NOTIFIER_HEAD(cpu_chain);
-
- /* If set, cpu_up and cpu_down will return -EBUSY and do nothing.
- * Should always be manipulated under cpu_add_remove_lock
-diff -urNp linux-2.6.28.7/kernel/exit.c linux-2.6.28.7/kernel/exit.c
---- linux-2.6.28.7/kernel/exit.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/exit.c 2009-03-07 04:29:14.000000000 -0500
-@@ -53,6 +53,10 @@
- #include <asm/pgtable.h>
- #include <asm/mmu_context.h>
-
-+#ifdef CONFIG_GRKERNSEC
-+extern rwlock_t grsec_exec_file_lock;
-+#endif
-+
- static void exit_mm(struct task_struct * tsk);
-
- static inline int task_detached(struct task_struct *p)
-@@ -163,6 +167,8 @@ void release_task(struct task_struct * p
- struct task_struct *leader;
- int zap_leader;
- repeat:
-+ gr_del_task_from_ip_table(p);
-+
- tracehook_prepare_release_task(p);
- atomic_dec(&p->user->processes);
- proc_flush_task(p);
-@@ -326,11 +332,22 @@ static void reparent_to_kthreadd(void)
- {
- write_lock_irq(&tasklist_lock);
-
-+#ifdef CONFIG_GRKERNSEC
-+ write_lock(&grsec_exec_file_lock);
-+ if (current->exec_file) {
-+ fput(current->exec_file);
-+ current->exec_file = NULL;
-+ }
-+ write_unlock(&grsec_exec_file_lock);
-+#endif
-+
- ptrace_unlink(current);
- /* Reparent to init */
- current->real_parent = current->parent = kthreadd_task;
- list_move_tail(¤t->sibling, ¤t->real_parent->children);
-
-+ gr_set_kernel_label(current);
-+
- /* Set the exit signal to SIGCHLD so we signal init on exit */
- current->exit_signal = SIGCHLD;
-
-@@ -424,6 +441,17 @@ void daemonize(const char *name, ...)
- vsnprintf(current->comm, sizeof(current->comm), name, args);
- va_end(args);
-
-+#ifdef CONFIG_GRKERNSEC
-+ write_lock(&grsec_exec_file_lock);
-+ if (current->exec_file) {
-+ fput(current->exec_file);
-+ current->exec_file = NULL;
-+ }
-+ write_unlock(&grsec_exec_file_lock);
-+#endif
-+
-+ gr_set_kernel_label(current);
-+
- /*
- * If we were started as result of loading a module, close all of the
- * user space pages. We don't need them, and if we didn't close them
-@@ -1066,6 +1094,9 @@ NORET_TYPE void do_exit(long code)
- tsk->exit_code = code;
- taskstats_exit(tsk, group_dead);
-
-+ gr_acl_handle_psacct(tsk, code);
-+ gr_acl_handle_exit();
-+
- exit_mm(tsk);
-
- if (group_dead)
-@@ -1272,7 +1303,7 @@ static int wait_task_zombie(struct task_
- if (unlikely(options & WNOWAIT)) {
- uid_t uid = p->uid;
- int exit_code = p->exit_code;
-- int why, status;
-+ int why;
-
- get_task_struct(p);
- read_unlock(&tasklist_lock);
-diff -urNp linux-2.6.28.7/kernel/fork.c linux-2.6.28.7/kernel/fork.c
---- linux-2.6.28.7/kernel/fork.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/fork.c 2009-02-21 09:37:49.000000000 -0500
-@@ -236,7 +236,7 @@ static struct task_struct *dup_task_stru
- setup_thread_stack(tsk, orig);
-
- #ifdef CONFIG_CC_STACKPROTECTOR
-- tsk->stack_canary = get_random_int();
-+ tsk->stack_canary = pax_get_random_long();
- #endif
-
- /* One for us, one for whoever does the "release_task()" (usually parent) */
-@@ -273,8 +273,8 @@ static int dup_mmap(struct mm_struct *mm
- mm->locked_vm = 0;
- mm->mmap = NULL;
- mm->mmap_cache = NULL;
-- mm->free_area_cache = oldmm->mmap_base;
-- mm->cached_hole_size = ~0UL;
-+ mm->free_area_cache = oldmm->free_area_cache;
-+ mm->cached_hole_size = oldmm->cached_hole_size;
- mm->map_count = 0;
- cpus_clear(mm->cpu_vm_mask);
- mm->mm_rb = RB_ROOT;
-@@ -311,6 +311,7 @@ static int dup_mmap(struct mm_struct *mm
- tmp->vm_flags &= ~VM_LOCKED;
- tmp->vm_mm = mm;
- tmp->vm_next = NULL;
-+ tmp->vm_mirror = NULL;
- anon_vma_link(tmp);
- file = tmp->vm_file;
- if (file) {
-@@ -358,6 +359,31 @@ static int dup_mmap(struct mm_struct *mm
- if (retval)
- goto out;
- }
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
-+ struct vm_area_struct *mpnt_m;
-+
-+ for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
-+ BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
-+
-+ if (!mpnt->vm_mirror)
-+ continue;
-+
-+ if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
-+ BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
-+ mpnt->vm_mirror = mpnt_m;
-+ } else {
-+ BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
-+ mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
-+ mpnt_m->vm_mirror->vm_mirror = mpnt_m;
-+ mpnt->vm_mirror->vm_mirror = mpnt;
-+ }
-+ }
-+ BUG_ON(mpnt_m);
-+ }
-+#endif
-+
- /* a new mm has just been created */
- arch_dup_mmap(oldmm, mm);
- retval = 0;
-@@ -527,9 +553,11 @@ void mm_release(struct task_struct *tsk,
- #ifdef CONFIG_FUTEX
- if (unlikely(tsk->robust_list))
- exit_robust_list(tsk);
-+ tsk->robust_list = NULL;
- #ifdef CONFIG_COMPAT
- if (unlikely(tsk->compat_robust_list))
- compat_exit_robust_list(tsk);
-+ tsk->compat_robust_list = NULL;
- #endif
- #endif
-
-@@ -551,7 +579,7 @@ void mm_release(struct task_struct *tsk,
- if (tsk->clear_child_tid
- && !(tsk->flags & PF_SIGNALED)
- && atomic_read(&mm->mm_users) > 1) {
-- u32 __user * tidptr = tsk->clear_child_tid;
-+ pid_t __user * tidptr = tsk->clear_child_tid;
- tsk->clear_child_tid = NULL;
-
- /*
-@@ -559,7 +587,7 @@ void mm_release(struct task_struct *tsk,
- * not set up a proper pointer then tough luck.
- */
- put_user(0, tidptr);
-- sys_futex(tidptr, FUTEX_WAKE, 1, NULL, NULL, 0);
-+ sys_futex((u32 __user *)tidptr, FUTEX_WAKE, 1, NULL, NULL, 0);
- }
- }
-
-@@ -984,6 +1012,9 @@ static struct task_struct *copy_process(
- DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
- #endif
- retval = -EAGAIN;
-+
-+ gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->user->processes), 0);
-+
- if (atomic_read(&p->user->processes) >=
- p->signal->rlim[RLIMIT_NPROC].rlim_cur) {
- if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
-@@ -1147,6 +1178,8 @@ static struct task_struct *copy_process(
- goto bad_fork_free_pid;
- }
-
-+ gr_copy_label(p);
-+
- p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL;
- /*
- * Clear TID on mm_release()?
-@@ -1318,6 +1351,8 @@ bad_fork_cleanup_count:
- bad_fork_free:
- free_task(p);
- fork_out:
-+ gr_log_forkfail(retval);
-+
- return ERR_PTR(retval);
- }
-
-@@ -1396,6 +1431,8 @@ long do_fork(unsigned long clone_flags,
- if (clone_flags & CLONE_PARENT_SETTID)
- put_user(nr, parent_tidptr);
-
-+ gr_handle_brute_check();
-+
- if (clone_flags & CLONE_VFORK) {
- p->vfork_done = &vfork;
- init_completion(&vfork);
-diff -urNp linux-2.6.28.7/kernel/futex.c linux-2.6.28.7/kernel/futex.c
---- linux-2.6.28.7/kernel/futex.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/futex.c 2009-02-21 09:37:49.000000000 -0500
-@@ -188,6 +188,11 @@ static int get_futex_key(u32 __user *uad
- struct page *page;
- int err;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
-+ return -EFAULT;
-+#endif
-+
- /*
- * The futex address must be "naturally" aligned.
- */
-@@ -214,8 +219,8 @@ static int get_futex_key(u32 __user *uad
- * The futex is hashed differently depending on whether
- * it's in a shared or private mapping. So check vma first.
- */
-- vma = find_extend_vma(mm, address);
-- if (unlikely(!vma))
-+ vma = find_vma(mm, address);
-+ if (unlikely(!vma || address < vma->vm_start))
- return -EFAULT;
-
- /*
-@@ -1348,7 +1353,7 @@ static int futex_wait(u32 __user *uaddr,
- struct restart_block *restart;
- restart = ¤t_thread_info()->restart_block;
- restart->fn = futex_wait_restart;
-- restart->futex.uaddr = (u32 *)uaddr;
-+ restart->futex.uaddr = uaddr;
- restart->futex.val = val;
- restart->futex.time = abs_time->tv64;
- restart->futex.bitset = bitset;
-@@ -1908,7 +1913,7 @@ retry:
- */
- static inline int fetch_robust_entry(struct robust_list __user **entry,
- struct robust_list __user * __user *head,
-- int *pi)
-+ unsigned int *pi)
- {
- unsigned long uentry;
-
-diff -urNp linux-2.6.28.7/kernel/irq/handle.c linux-2.6.28.7/kernel/irq/handle.c
---- linux-2.6.28.7/kernel/irq/handle.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/irq/handle.c 2009-02-21 09:37:49.000000000 -0500
-@@ -57,7 +57,8 @@ struct irq_desc irq_desc[NR_IRQS] __cach
- .depth = 1,
- .lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock),
- #ifdef CONFIG_SMP
-- .affinity = CPU_MASK_ALL
-+ .affinity = CPU_MASK_ALL,
-+ .cpu = 0,
- #endif
- }
- };
-diff -urNp linux-2.6.28.7/kernel/kallsyms.c linux-2.6.28.7/kernel/kallsyms.c
---- linux-2.6.28.7/kernel/kallsyms.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/kallsyms.c 2009-02-21 09:37:49.000000000 -0500
-@@ -62,6 +62,18 @@ static inline int is_kernel_text(unsigne
-
- static inline int is_kernel(unsigned long addr)
- {
-+
-+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES)
-+ if ((unsigned long)MODULES_VADDR <= ktla_ktva(addr) &&
-+ ktla_ktva(addr) < (unsigned long)MODULES_END)
-+ return 0;
-+#endif
-+
-+#ifdef CONFIG_X86_32
-+ if (is_kernel_inittext(addr))
-+ return 1;
-+#endif
-+
- if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
- return 1;
- return in_gate_area_no_task(addr);
-@@ -372,7 +384,6 @@ static unsigned long get_ksymbol_core(st
-
- static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
- {
-- iter->name[0] = '\0';
- iter->nameoff = get_symbol_offset(new_pos);
- iter->pos = new_pos;
- }
-@@ -456,7 +467,7 @@ static int kallsyms_open(struct inode *i
- struct kallsym_iter *iter;
- int ret;
-
-- iter = kmalloc(sizeof(*iter), GFP_KERNEL);
-+ iter = kzalloc(sizeof(*iter), GFP_KERNEL);
- if (!iter)
- return -ENOMEM;
- reset_iter(iter, 0);
-@@ -478,7 +489,15 @@ static const struct file_operations kall
-
- static int __init kallsyms_init(void)
- {
-+#ifdef CONFIG_GRKERNSEC_PROC_ADD
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ proc_create("kallsyms", S_IFREG | S_IRUSR, NULL, &kallsyms_operations);
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ proc_create("kallsyms", S_IFREG | S_IRUSR | S_IRGRP, NULL, &kallsyms_operations);
-+#endif
-+#else
- proc_create("kallsyms", 0444, NULL, &kallsyms_operations);
-+#endif
- return 0;
- }
- __initcall(kallsyms_init);
-diff -urNp linux-2.6.28.7/kernel/kmod.c linux-2.6.28.7/kernel/kmod.c
---- linux-2.6.28.7/kernel/kmod.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/kmod.c 2009-02-21 09:37:49.000000000 -0500
-@@ -108,7 +108,7 @@ int request_module(const char *fmt, ...)
- return -ENOMEM;
- }
-
-- ret = call_usermodehelper(modprobe_path, argv, envp, 1);
-+ ret = call_usermodehelper(modprobe_path, argv, envp, UMH_WAIT_PROC);
- atomic_dec(&kmod_concurrent);
- return ret;
- }
-diff -urNp linux-2.6.28.7/kernel/kprobes.c linux-2.6.28.7/kernel/kprobes.c
---- linux-2.6.28.7/kernel/kprobes.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/kprobes.c 2009-02-21 09:37:49.000000000 -0500
-@@ -182,7 +182,7 @@ kprobe_opcode_t __kprobes *get_insn_slot
- * kernel image and loaded module images reside. This is required
- * so x86_64 can correctly handle the %rip-relative fixups.
- */
-- kip->insns = module_alloc(PAGE_SIZE);
-+ kip->insns = module_alloc_exec(PAGE_SIZE);
- if (!kip->insns) {
- kfree(kip);
- return NULL;
-@@ -214,7 +214,7 @@ static int __kprobes collect_one_slot(st
- hlist_add_head(&kip->hlist,
- &kprobe_insn_pages);
- } else {
-- module_free(NULL, kip->insns);
-+ module_free_exec(NULL, kip->insns);
- kfree(kip);
- }
- return 1;
-diff -urNp linux-2.6.28.7/kernel/lockdep.c linux-2.6.28.7/kernel/lockdep.c
---- linux-2.6.28.7/kernel/lockdep.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/lockdep.c 2009-02-21 09:37:49.000000000 -0500
-@@ -627,6 +627,10 @@ static int static_obj(void *obj)
- int i;
- #endif
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ start = (unsigned long )&_data;
-+#endif
-+
- /*
- * static variable?
- */
-@@ -638,9 +642,12 @@ static int static_obj(void *obj)
- * percpu var?
- */
- for_each_possible_cpu(i) {
-+#ifdef CONFIG_X86_32
-+ start = per_cpu_offset(i);
-+#else
- start = (unsigned long) &__per_cpu_start + per_cpu_offset(i);
-- end = (unsigned long) &__per_cpu_start + PERCPU_ENOUGH_ROOM
-- + per_cpu_offset(i);
-+#endif
-+ end = start + PERCPU_ENOUGH_ROOM;
-
- if ((addr >= start) && (addr < end))
- return 1;
-diff -urNp linux-2.6.28.7/kernel/module.c linux-2.6.28.7/kernel/module.c
---- linux-2.6.28.7/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/module.c 2009-02-21 09:37:50.000000000 -0500
-@@ -47,6 +47,11 @@
- #include <linux/rculist.h>
- #include <asm/uaccess.h>
- #include <asm/cacheflush.h>
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+#include <asm/desc.h>
-+#endif
-+
- #include <linux/license.h>
- #include <asm/sections.h>
- #include <linux/tracepoint.h>
-@@ -76,7 +81,10 @@ static DECLARE_WAIT_QUEUE_HEAD(module_wq
- static BLOCKING_NOTIFIER_HEAD(module_notify_list);
-
- /* Bounds of module allocation, for speeding __module_text_address */
--static unsigned long module_addr_min = -1UL, module_addr_max = 0;
-+static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
-+static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
-+
-+extern int gr_check_modstop(void);
-
- int register_module_notifier(struct notifier_block * nb)
- {
-@@ -245,7 +253,7 @@ static bool each_symbol(bool (*fn)(const
- return true;
-
- list_for_each_entry_rcu(mod, &modules, list) {
-- struct symsearch arr[] = {
-+ struct symsearch modarr[] = {
- { mod->syms, mod->syms + mod->num_syms, mod->crcs,
- NOT_GPL_ONLY, false },
- { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
-@@ -267,7 +275,7 @@ static bool each_symbol(bool (*fn)(const
- #endif
- };
-
-- if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
-+ if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
- return true;
- }
- return false;
-@@ -403,6 +411,8 @@ static inline unsigned int block_size(in
- return val;
- }
-
-+EXPORT_SYMBOL(__per_cpu_start);
-+
- static void *percpu_modalloc(unsigned long size, unsigned long align,
- const char *name)
- {
-@@ -410,7 +420,7 @@ static void *percpu_modalloc(unsigned lo
- unsigned int i;
- void *ptr;
-
-- if (align > PAGE_SIZE) {
-+ if (align-1 >= PAGE_SIZE) {
- printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n",
- name, align, PAGE_SIZE);
- align = PAGE_SIZE;
-@@ -492,7 +502,11 @@ static void percpu_modcopy(void *pcpudes
- int cpu;
-
- for_each_possible_cpu(cpu)
-+#ifdef CONFIG_X86_32
-+ memcpy(pcpudest + __per_cpu_offset[cpu], from, size);
-+#else
- memcpy(pcpudest + per_cpu_offset(cpu), from, size);
-+#endif
- }
-
- static int percpu_modinit(void)
-@@ -750,6 +764,9 @@ SYSCALL_DEFINE2(delete_module, const cha
- char name[MODULE_NAME_LEN];
- int ret, forced = 0;
-
-+ if (gr_check_modstop())
-+ return -EPERM;
-+
- if (!capable(CAP_SYS_MODULE))
- return -EPERM;
-
-@@ -1448,19 +1465,22 @@ static void free_module(struct module *m
- module_unload_free(mod);
-
- /* release any pointers to mcount in this module */
-- ftrace_release(mod->module_core, mod->core_size);
-+ ftrace_release(mod->module_core_rx, mod->core_size_rx);
-
- /* This may be NULL, but that's OK */
-- module_free(mod, mod->module_init);
-+ module_free(mod, mod->module_init_rw);
-+ module_free_exec(mod, mod->module_init_rx);
- kfree(mod->args);
- if (mod->percpu)
- percpu_modfree(mod->percpu);
-
- /* Free lock-classes: */
-- lockdep_free_key_range(mod->module_core, mod->core_size);
-+ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
-+ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
-
- /* Finally, free the core (containing the module structure) */
-- module_free(mod, mod->module_core);
-+ module_free_exec(mod, mod->module_core_rx);
-+ module_free(mod, mod->module_core_rw);
- }
-
- void *__symbol_get(const char *symbol)
-@@ -1526,10 +1546,14 @@ static int simplify_symbols(Elf_Shdr *se
- struct module *mod)
- {
- Elf_Sym *sym = (void *)sechdrs[symindex].sh_addr;
-- unsigned long secbase;
-+ unsigned long secbase, symbol;
- unsigned int i, n = sechdrs[symindex].sh_size / sizeof(Elf_Sym);
- int ret = 0;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- for (i = 1; i < n; i++) {
- switch (sym[i].st_shndx) {
- case SHN_COMMON:
-@@ -1548,10 +1572,19 @@ static int simplify_symbols(Elf_Shdr *se
- break;
-
- case SHN_UNDEF:
-- sym[i].st_value
-- = resolve_symbol(sechdrs, versindex,
-+ symbol = resolve_symbol(sechdrs, versindex,
- strtab + sym[i].st_name, mod);
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ sym[i].st_value = symbol;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- /* Ok if resolved. */
- if (!IS_ERR_VALUE(sym[i].st_value))
- break;
-@@ -1566,11 +1599,27 @@ static int simplify_symbols(Elf_Shdr *se
-
- default:
- /* Divert to percpu allocation if a percpu var. */
-- if (sym[i].st_shndx == pcpuindex)
-+ if (sym[i].st_shndx == pcpuindex) {
-+
-+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
-+ secbase = (unsigned long)mod->percpu - (unsigned long)__per_cpu_start;
-+#else
- secbase = (unsigned long)mod->percpu;
-- else
-+#endif
-+
-+ } else
- secbase = sechdrs[sym[i].st_shndx].sh_addr;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- sym[i].st_value += secbase;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
- break;
- }
- }
-@@ -1622,11 +1671,12 @@ static void layout_sections(struct modul
- || strncmp(secstrings + s->sh_name,
- ".init", 5) == 0)
- continue;
-- s->sh_entsize = get_offset(&mod->core_size, s);
-+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
-+ s->sh_entsize = get_offset(&mod->core_size_rw, s);
-+ else
-+ s->sh_entsize = get_offset(&mod->core_size_rx, s);
- DEBUGP("\t%s\n", secstrings + s->sh_name);
- }
-- if (m == 0)
-- mod->core_text_size = mod->core_size;
- }
-
- DEBUGP("Init section allocation order:\n");
-@@ -1640,12 +1690,13 @@ static void layout_sections(struct modul
- || strncmp(secstrings + s->sh_name,
- ".init", 5) != 0)
- continue;
-- s->sh_entsize = (get_offset(&mod->init_size, s)
-- | INIT_OFFSET_MASK);
-+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
-+ s->sh_entsize = get_offset(&mod->init_size_rw, s);
-+ else
-+ s->sh_entsize = get_offset(&mod->init_size_rx, s);
-+ s->sh_entsize |= INIT_OFFSET_MASK;
- DEBUGP("\t%s\n", secstrings + s->sh_name);
- }
-- if (m == 0)
-- mod->init_text_size = mod->init_size;
- }
- }
-
-@@ -1785,14 +1836,31 @@ static void add_kallsyms(struct module *
- {
- unsigned int i;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- mod->symtab = (void *)sechdrs[symindex].sh_addr;
- mod->num_symtab = sechdrs[symindex].sh_size / sizeof(Elf_Sym);
- mod->strtab = (void *)sechdrs[strindex].sh_addr;
-
- /* Set types up while we still have access to sections. */
-- for (i = 0; i < mod->num_symtab; i++)
-- mod->symtab[i].st_info
-- = elf_type(&mod->symtab[i], sechdrs, secstrings, mod);
-+
-+ for (i = 0; i < mod->num_symtab; i++) {
-+ char type = elf_type(&mod->symtab[i], sechdrs, secstrings, mod);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ mod->symtab[i].st_info = type;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ }
-+
- }
- #else
- static inline void add_kallsyms(struct module *mod,
-@@ -1819,16 +1887,30 @@ static void dynamic_printk_setup(struct
- #endif /* CONFIG_DYNAMIC_PRINTK_DEBUG */
- }
-
--static void *module_alloc_update_bounds(unsigned long size)
-+static void *module_alloc_update_bounds_rw(unsigned long size)
- {
- void *ret = module_alloc(size);
-
- if (ret) {
- /* Update module bounds. */
-- if ((unsigned long)ret < module_addr_min)
-- module_addr_min = (unsigned long)ret;
-- if ((unsigned long)ret + size > module_addr_max)
-- module_addr_max = (unsigned long)ret + size;
-+ if ((unsigned long)ret < module_addr_min_rw)
-+ module_addr_min_rw = (unsigned long)ret;
-+ if ((unsigned long)ret + size > module_addr_max_rw)
-+ module_addr_max_rw = (unsigned long)ret + size;
-+ }
-+ return ret;
-+}
-+
-+static void *module_alloc_update_bounds_rx(unsigned long size)
-+{
-+ void *ret = module_alloc_exec(size);
-+
-+ if (ret) {
-+ /* Update module bounds. */
-+ if ((unsigned long)ret < module_addr_min_rx)
-+ module_addr_min_rx = (unsigned long)ret;
-+ if ((unsigned long)ret + size > module_addr_max_rx)
-+ module_addr_max_rx = (unsigned long)ret + size;
- }
- return ret;
- }
-@@ -1856,6 +1938,10 @@ static noinline struct module *load_modu
- unsigned long *mseg;
- mm_segment_t old_fs;
-
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-+
- DEBUGP("load_module: umod=%p, len=%lu, uargs=%p\n",
- umod, len, uargs);
- if (len < sizeof(*hdr))
-@@ -2010,22 +2096,57 @@ static noinline struct module *load_modu
- layout_sections(mod, hdr, sechdrs, secstrings);
-
- /* Do the allocs. */
-- ptr = module_alloc_update_bounds(mod->core_size);
-+ ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
- if (!ptr) {
- err = -ENOMEM;
- goto free_percpu;
- }
-- memset(ptr, 0, mod->core_size);
-- mod->module_core = ptr;
-+ memset(ptr, 0, mod->core_size_rw);
-+ mod->module_core_rw = ptr;
-
-- ptr = module_alloc_update_bounds(mod->init_size);
-- if (!ptr && mod->init_size) {
-+ ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
-+ if (!ptr && mod->init_size_rw) {
- err = -ENOMEM;
-- goto free_core;
-+ goto free_core_rw;
- }
-- memset(ptr, 0, mod->init_size);
-- mod->module_init = ptr;
-+ memset(ptr, 0, mod->init_size_rw);
-+ mod->module_init_rw = ptr;
-+
-+ ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
-+ if (!ptr) {
-+ err = -ENOMEM;
-+ goto free_init_rw;
-+ }
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-
-+ memset(ptr, 0, mod->core_size_rx);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ mod->module_core_rx = ptr;
-+
-+ ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
-+ if (!ptr && mod->init_size_rx) {
-+ err = -ENOMEM;
-+ goto free_core_rx;
-+ }
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
-+ memset(ptr, 0, mod->init_size_rx);
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ mod->module_init_rx = ptr;
- /* Transfer each section which specifies SHF_ALLOC */
- DEBUGP("final section addresses:\n");
- for (i = 0; i < hdr->e_shnum; i++) {
-@@ -2034,17 +2155,41 @@ static noinline struct module *load_modu
- if (!(sechdrs[i].sh_flags & SHF_ALLOC))
- continue;
-
-- if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK)
-- dest = mod->module_init
-- + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK);
-- else
-- dest = mod->module_core + sechdrs[i].sh_entsize;
-+ if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK) {
-+ if ((sechdrs[i].sh_flags & SHF_WRITE) || !(sechdrs[i].sh_flags & SHF_ALLOC))
-+ dest = mod->module_init_rw
-+ + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK);
-+ else
-+ dest = mod->module_init_rx
-+ + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK);
-+ } else {
-+ if ((sechdrs[i].sh_flags & SHF_WRITE) || !(sechdrs[i].sh_flags & SHF_ALLOC))
-+ dest = mod->module_core_rw + sechdrs[i].sh_entsize;
-+ else
-+ dest = mod->module_core_rx + sechdrs[i].sh_entsize;
-+ }
-+
-+ if (sechdrs[i].sh_type != SHT_NOBITS) {
-
-- if (sechdrs[i].sh_type != SHT_NOBITS)
-- memcpy(dest, (void *)sechdrs[i].sh_addr,
-- sechdrs[i].sh_size);
-+#ifdef CONFIG_PAX_KERNEXEC
-+ if (!(sechdrs[i].sh_flags & SHF_WRITE) && (sechdrs[i].sh_flags & SHF_ALLOC)) {
-+ pax_open_kernel(cr0);
-+ memcpy(dest, (void *)sechdrs[i].sh_addr, sechdrs[i].sh_size);
-+ pax_close_kernel(cr0);
-+ } else
-+#endif
-+
-+ memcpy(dest, (void *)sechdrs[i].sh_addr, sechdrs[i].sh_size);
-+ }
- /* Update sh_addr to point to copy in image. */
-- sechdrs[i].sh_addr = (unsigned long)dest;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ if (sechdrs[i].sh_flags & SHF_EXECINSTR)
-+ sechdrs[i].sh_addr = ktva_ktla((unsigned long)dest);
-+ else
-+#endif
-+
-+ sechdrs[i].sh_addr = (unsigned long)dest;
- DEBUGP("\t0x%lx %s\n", sechdrs[i].sh_addr, secstrings + sechdrs[i].sh_name);
- }
- /* Module has been moved. */
-@@ -2144,8 +2289,8 @@ static noinline struct module *load_modu
-
- /* Now do relocations. */
- for (i = 1; i < hdr->e_shnum; i++) {
-- const char *strtab = (char *)sechdrs[strindex].sh_addr;
- unsigned int info = sechdrs[i].sh_info;
-+ strtab = (char *)sechdrs[strindex].sh_addr;
-
- /* Not a valid relocation section? */
- if (info >= hdr->e_shnum)
-@@ -2216,12 +2361,12 @@ static noinline struct module *load_modu
- * Do it before processing of module parameters, so the module
- * can provide parameter accessor functions of its own.
- */
-- if (mod->module_init)
-- flush_icache_range((unsigned long)mod->module_init,
-- (unsigned long)mod->module_init
-- + mod->init_size);
-- flush_icache_range((unsigned long)mod->module_core,
-- (unsigned long)mod->module_core + mod->core_size);
-+ if (mod->module_init_rx)
-+ flush_icache_range((unsigned long)mod->module_init_rx,
-+ (unsigned long)mod->module_init_rx
-+ + mod->init_size_rx);
-+ flush_icache_range((unsigned long)mod->module_core_rx,
-+ (unsigned long)mod->module_core_rx + mod->core_size_rx);
-
- set_fs(old_fs);
-
-@@ -2266,12 +2411,16 @@ static noinline struct module *load_modu
- cleanup:
- kobject_del(&mod->mkobj.kobj);
- kobject_put(&mod->mkobj.kobj);
-- ftrace_release(mod->module_core, mod->core_size);
-+ ftrace_release(mod->module_core_rx, mod->core_size_rx);
- free_unload:
- module_unload_free(mod);
-- module_free(mod, mod->module_init);
-- free_core:
-- module_free(mod, mod->module_core);
-+ module_free_exec(mod, mod->module_init_rx);
-+ free_core_rx:
-+ module_free_exec(mod, mod->module_core_rx);
-+ free_init_rw:
-+ module_free(mod, mod->module_init_rw);
-+ free_core_rw:
-+ module_free(mod, mod->module_core_rw);
- free_percpu:
- if (percpu)
- percpu_modfree(percpu);
-@@ -2294,6 +2443,9 @@ SYSCALL_DEFINE3(init_module, void __user
- struct module *mod;
- int ret = 0;
-
-+ if (gr_check_modstop())
-+ return -EPERM;
-+
- /* Must have permission */
- if (!capable(CAP_SYS_MODULE))
- return -EPERM;
-@@ -2349,10 +2501,12 @@ SYSCALL_DEFINE3(init_module, void __user
- /* Drop initial reference. */
- module_put(mod);
- unwind_remove_table(mod->unwind_info, 1);
-- module_free(mod, mod->module_init);
-- mod->module_init = NULL;
-- mod->init_size = 0;
-- mod->init_text_size = 0;
-+ module_free(mod, mod->module_init_rw);
-+ module_free_exec(mod, mod->module_init_rx);
-+ mod->module_init_rw = NULL;
-+ mod->module_init_rx = NULL;
-+ mod->init_size_rw = 0;
-+ mod->init_size_rx = 0;
- mutex_unlock(&module_mutex);
-
- return 0;
-@@ -2360,6 +2514,13 @@ SYSCALL_DEFINE3(init_module, void __user
-
- static inline int within(unsigned long addr, void *start, unsigned long size)
- {
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ if (ktla_ktva(addr) >= (unsigned long)start &&
-+ ktla_ktva(addr) < (unsigned long)start + size)
-+ return 1;
-+#endif
-+
- return ((void *)addr >= start && (void *)addr < start + size);
- }
-
-@@ -2383,10 +2544,14 @@ static const char *get_ksymbol(struct mo
- unsigned long nextval;
-
- /* At worse, next value is at end of module */
-- if (within(addr, mod->module_init, mod->init_size))
-- nextval = (unsigned long)mod->module_init+mod->init_text_size;
-+ if (within(addr, mod->module_init_rx, mod->init_size_rx))
-+ nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
-+ else if (within(addr, mod->module_init_rw, mod->init_size_rw))
-+ nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
-+ else if (within(addr, mod->module_core_rx, mod->core_size_rx))
-+ nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
- else
-- nextval = (unsigned long)mod->module_core+mod->core_text_size;
-+ nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
-
- /* Scan for closest preceeding symbol, and next symbol. (ELF
- starts real symbols at 1). */
-@@ -2431,8 +2596,10 @@ const char *module_address_lookup(unsign
-
- preempt_disable();
- list_for_each_entry_rcu(mod, &modules, list) {
-- if (within(addr, mod->module_init, mod->init_size)
-- || within(addr, mod->module_core, mod->core_size)) {
-+ if (within(addr, mod->module_init_rx, mod->init_size_rx) ||
-+ within(addr, mod->module_init_rw, mod->init_size_rw) ||
-+ within(addr, mod->module_core_rx, mod->core_size_rx) ||
-+ within(addr, mod->module_core_rw, mod->core_size_rw)) {
- if (modname)
- *modname = mod->name;
- ret = get_ksymbol(mod, addr, size, offset);
-@@ -2454,8 +2621,10 @@ int lookup_module_symbol_name(unsigned l
-
- preempt_disable();
- list_for_each_entry_rcu(mod, &modules, list) {
-- if (within(addr, mod->module_init, mod->init_size) ||
-- within(addr, mod->module_core, mod->core_size)) {
-+ if (within(addr, mod->module_init_rx, mod->init_size_rx) ||
-+ within(addr, mod->module_init_rw, mod->init_size_rw) ||
-+ within(addr, mod->module_core_rx, mod->core_size_rx) ||
-+ within(addr, mod->module_core_rw, mod->core_size_rw)) {
- const char *sym;
-
- sym = get_ksymbol(mod, addr, NULL, NULL);
-@@ -2478,8 +2647,10 @@ int lookup_module_symbol_attrs(unsigned
-
- preempt_disable();
- list_for_each_entry_rcu(mod, &modules, list) {
-- if (within(addr, mod->module_init, mod->init_size) ||
-- within(addr, mod->module_core, mod->core_size)) {
-+ if (within(addr, mod->module_init_rx, mod->init_size_rx) ||
-+ within(addr, mod->module_init_rw, mod->init_size_rw) ||
-+ within(addr, mod->module_core_rx, mod->core_size_rx) ||
-+ within(addr, mod->module_core_rw, mod->core_size_rw)) {
- const char *sym;
-
- sym = get_ksymbol(mod, addr, size, offset);
-@@ -2613,7 +2784,7 @@ static int m_show(struct seq_file *m, vo
- char buf[8];
-
- seq_printf(m, "%s %u",
-- mod->name, mod->init_size + mod->core_size);
-+ mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
- print_unload_info(m, mod);
-
- /* Informative for users. */
-@@ -2622,7 +2793,7 @@ static int m_show(struct seq_file *m, vo
- mod->state == MODULE_STATE_COMING ? "Loading":
- "Live");
- /* Used by oprofile and other similar tools. */
-- seq_printf(m, " 0x%p", mod->module_core);
-+ seq_printf(m, " 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw);
-
- /* Taints info */
- if (mod->taints)
-@@ -2698,8 +2869,8 @@ int is_module_address(unsigned long addr
- preempt_disable();
-
- list_for_each_entry_rcu(mod, &modules, list) {
-- if (within(addr, mod->module_core, mod->core_size)) {
-- preempt_enable();
-+ if (within(addr, mod->module_core_rx, mod->core_size_rx) ||
-+ within(addr, mod->module_core_rw, mod->core_size_rw)) {
- return 1;
- }
- }
-@@ -2715,12 +2886,16 @@ struct module *__module_text_address(uns
- {
- struct module *mod;
-
-- if (addr < module_addr_min || addr > module_addr_max)
-+#ifdef CONFIG_X86_32
-+ addr = ktla_ktva(addr);
-+#endif
-+
-+ if (addr < module_addr_min_rx || addr > module_addr_max_rx)
- return NULL;
-
- list_for_each_entry_rcu(mod, &modules, list)
-- if (within(addr, mod->module_init, mod->init_text_size)
-- || within(addr, mod->module_core, mod->core_text_size))
-+ if (within(addr, mod->module_init_rx, mod->init_size_rx)
-+ || within(addr, mod->module_core_rx, mod->core_size_rx))
- return mod;
- return NULL;
- }
-diff -urNp linux-2.6.28.7/kernel/mutex.c linux-2.6.28.7/kernel/mutex.c
---- linux-2.6.28.7/kernel/mutex.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/mutex.c 2009-02-21 09:37:50.000000000 -0500
-@@ -83,7 +83,7 @@ __mutex_lock_slowpath(atomic_t *lock_cou
- *
- * This function is similar to (but not equivalent to) down().
- */
--void inline __sched mutex_lock(struct mutex *lock)
-+inline void __sched mutex_lock(struct mutex *lock)
- {
- might_sleep();
- /*
-diff -urNp linux-2.6.28.7/kernel/panic.c linux-2.6.28.7/kernel/panic.c
---- linux-2.6.28.7/kernel/panic.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/panic.c 2009-02-21 09:37:50.000000000 -0500
-@@ -367,6 +367,8 @@ EXPORT_SYMBOL(warn_slowpath);
- */
- void __stack_chk_fail(void)
- {
-+ print_symbol("stack corrupted in: %s\n", (unsigned long)__builtin_return_address(0));
-+ dump_stack();
- panic("stack-protector: Kernel stack is corrupted");
- }
- EXPORT_SYMBOL(__stack_chk_fail);
-diff -urNp linux-2.6.28.7/kernel/pid.c linux-2.6.28.7/kernel/pid.c
---- linux-2.6.28.7/kernel/pid.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/pid.c 2009-02-21 09:37:50.000000000 -0500
-@@ -33,6 +33,7 @@
- #include <linux/rculist.h>
- #include <linux/bootmem.h>
- #include <linux/hash.h>
-+#include <linux/security.h>
- #include <linux/pid_namespace.h>
- #include <linux/init_task.h>
- #include <linux/syscalls.h>
-@@ -45,7 +46,7 @@ struct pid init_struct_pid = INIT_STRUCT
-
- int pid_max = PID_MAX_DEFAULT;
-
--#define RESERVED_PIDS 300
-+#define RESERVED_PIDS 500
-
- int pid_max_min = RESERVED_PIDS + 1;
- int pid_max_max = PID_MAX_LIMIT;
-@@ -381,7 +382,14 @@ EXPORT_SYMBOL(pid_task);
- struct task_struct *find_task_by_pid_type_ns(int type, int nr,
- struct pid_namespace *ns)
- {
-- return pid_task(find_pid_ns(nr, ns), type);
-+ struct task_struct *task;
-+
-+ task = pid_task(find_pid_ns(nr, ns), type);
-+
-+ if (gr_pid_is_chrooted(task))
-+ return NULL;
-+
-+ return task;
- }
-
- EXPORT_SYMBOL(find_task_by_pid_type_ns);
-diff -urNp linux-2.6.28.7/kernel/posix-cpu-timers.c linux-2.6.28.7/kernel/posix-cpu-timers.c
---- linux-2.6.28.7/kernel/posix-cpu-timers.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/posix-cpu-timers.c 2009-02-21 09:37:50.000000000 -0500
-@@ -6,6 +6,7 @@
- #include <linux/posix-timers.h>
- #include <linux/errno.h>
- #include <linux/math64.h>
-+#include <linux/security.h>
- #include <asm/uaccess.h>
- #include <linux/kernel_stat.h>
-
-@@ -1157,6 +1158,7 @@ static void check_process_timers(struct
- __group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);
- return;
- }
-+ gr_learn_resource(tsk, RLIMIT_CPU, psecs, 1);
- if (psecs >= sig->rlim[RLIMIT_CPU].rlim_cur) {
- /*
- * At the soft limit, send a SIGXCPU every second.
-@@ -1381,17 +1383,17 @@ void run_posix_cpu_timers(struct task_st
- * timer call will interfere.
- */
- list_for_each_entry_safe(timer, next, &firing, it.cpu.entry) {
-- int firing;
-+ int __firing;
- spin_lock(&timer->it_lock);
- list_del_init(&timer->it.cpu.entry);
-- firing = timer->it.cpu.firing;
-+ __firing = timer->it.cpu.firing;
- timer->it.cpu.firing = 0;
- /*
- * The firing flag is -1 if we collided with a reset
- * of the timer, which already reported this
- * almost-firing as an overrun. So don't generate an event.
- */
-- if (likely(firing >= 0)) {
-+ if (likely(__firing >= 0)) {
- cpu_timer_fire(timer);
- }
- spin_unlock(&timer->it_lock);
-diff -urNp linux-2.6.28.7/kernel/power/poweroff.c linux-2.6.28.7/kernel/power/poweroff.c
---- linux-2.6.28.7/kernel/power/poweroff.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/power/poweroff.c 2009-02-21 09:37:50.000000000 -0500
-@@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_powerof
- .enable_mask = SYSRQ_ENABLE_BOOT,
- };
-
--static int pm_sysrq_init(void)
-+static int __init pm_sysrq_init(void)
- {
- register_sysrq_key('o', &sysrq_poweroff_op);
- return 0;
-diff -urNp linux-2.6.28.7/kernel/printk.c linux-2.6.28.7/kernel/printk.c
---- linux-2.6.28.7/kernel/printk.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/printk.c 2009-02-21 09:37:50.000000000 -0500
-@@ -254,6 +254,11 @@ int do_syslog(int type, char __user *buf
- char c;
- int error = 0;
-
-+#ifdef CONFIG_GRKERNSEC_DMESG
-+ if (grsec_enable_dmesg && !capable(CAP_SYS_ADMIN))
-+ return -EPERM;
-+#endif
-+
- error = security_syslog(type);
- if (error)
- return error;
-diff -urNp linux-2.6.28.7/kernel/ptrace.c linux-2.6.28.7/kernel/ptrace.c
---- linux-2.6.28.7/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/ptrace.c 2009-02-21 09:37:50.000000000 -0500
-@@ -132,12 +132,12 @@ int __ptrace_may_access(struct task_stru
- (current->uid != task->uid) ||
- (current->gid != task->egid) ||
- (current->gid != task->sgid) ||
-- (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE))
-+ (current->gid != task->gid)) && !capable_nolog(CAP_SYS_PTRACE))
- return -EPERM;
- smp_rmb();
- if (task->mm)
- dumpable = get_dumpable(task->mm);
-- if (!dumpable && !capable(CAP_SYS_PTRACE))
-+ if (!dumpable && !capable_nolog(CAP_SYS_PTRACE))
- return -EPERM;
-
- return security_ptrace_may_access(task, mode);
-@@ -193,7 +193,7 @@ repeat:
-
- /* Go */
- task->ptrace |= PT_PTRACED;
-- if (capable(CAP_SYS_PTRACE))
-+ if (capable_nolog(CAP_SYS_PTRACE))
- task->ptrace |= PT_PTRACE_CAP;
-
- __ptrace_link(task, current);
-@@ -582,6 +582,11 @@ SYSCALL_DEFINE4(ptrace, long, request, l
- if (ret < 0)
- goto out_put_task_struct;
-
-+ if (gr_handle_ptrace(child, request)) {
-+ ret = -EPERM;
-+ goto out_put_task_struct;
-+ }
-+
- ret = arch_ptrace(child, request, addr, data);
- if (ret < 0)
- goto out_put_task_struct;
-diff -urNp linux-2.6.28.7/kernel/relay.c linux-2.6.28.7/kernel/relay.c
---- linux-2.6.28.7/kernel/relay.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/relay.c 2009-02-21 09:37:50.000000000 -0500
-@@ -1292,7 +1292,7 @@ static int subbuf_splice_actor(struct fi
- return 0;
-
- ret = *nonpad_ret = splice_to_pipe(pipe, &spd);
-- if (ret < 0 || ret < total_len)
-+ if ((int)ret < 0 || ret < total_len)
- return ret;
-
- if (read_start + ret == nonpad_end)
-diff -urNp linux-2.6.28.7/kernel/resource.c linux-2.6.28.7/kernel/resource.c
---- linux-2.6.28.7/kernel/resource.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/resource.c 2009-02-21 09:37:50.000000000 -0500
-@@ -132,8 +132,18 @@ static const struct file_operations proc
-
- static int __init ioresources_init(void)
- {
-+#ifdef CONFIG_GRKERNSEC_PROC_ADD
-+#ifdef CONFIG_GRKERNSEC_PROC_USER
-+ proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
-+ proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
-+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
-+ proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
-+ proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
-+#endif
-+#else
- proc_create("ioports", 0, NULL, &proc_ioports_operations);
- proc_create("iomem", 0, NULL, &proc_iomem_operations);
-+#endif
- return 0;
- }
- __initcall(ioresources_init);
-diff -urNp linux-2.6.28.7/kernel/sched.c linux-2.6.28.7/kernel/sched.c
---- linux-2.6.28.7/kernel/sched.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/sched.c 2009-02-21 09:37:50.000000000 -0500
-@@ -5045,7 +5045,8 @@ SYSCALL_DEFINE1(nice, int, increment)
- if (nice > 19)
- nice = 19;
-
-- if (increment < 0 && !can_nice(current, nice))
-+ if (increment < 0 && (!can_nice(current, nice) ||
-+ gr_handle_chroot_nice()))
- return -EPERM;
-
- retval = security_task_setnice(current, nice);
-@@ -6310,7 +6311,7 @@ static struct ctl_table sd_ctl_dir[] = {
- .procname = "sched_domain",
- .mode = 0555,
- },
-- {0, },
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static struct ctl_table sd_ctl_root[] = {
-@@ -6320,7 +6321,7 @@ static struct ctl_table sd_ctl_root[] =
- .mode = 0555,
- .child = sd_ctl_dir,
- },
-- {0, },
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static struct ctl_table *sd_alloc_ctl_entry(int n)
-diff -urNp linux-2.6.28.7/kernel/signal.c linux-2.6.28.7/kernel/signal.c
---- linux-2.6.28.7/kernel/signal.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/signal.c 2009-02-21 09:37:50.000000000 -0500
-@@ -596,6 +596,9 @@ static int check_kill_permission(int sig
- }
- }
-
-+ if (gr_handle_signal(t, sig))
-+ return -EPERM;
-+
- return security_task_kill(t, info, sig, 0);
- }
-
-@@ -887,8 +890,8 @@ static void print_fatal_signal(struct pt
- for (i = 0; i < 16; i++) {
- unsigned char insn;
-
-- __get_user(insn, (unsigned char *)(regs->ip + i));
-- printk("%02x ", insn);
-+ if (!get_user(insn, (unsigned char __user *)(regs->ip + i)))
-+ printk("%02x ", insn);
- }
- }
- #endif
-@@ -911,7 +914,7 @@ __group_send_sig_info(int sig, struct si
- return send_signal(sig, info, p, 1);
- }
-
--static int
-+int
- specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
- {
- return send_signal(sig, info, t, 0);
-@@ -949,8 +952,12 @@ force_sig_info(int sig, struct siginfo *
- if (action->sa.sa_handler == SIG_DFL)
- t->signal->flags &= ~SIGNAL_UNKILLABLE;
- ret = specific_send_sig_info(sig, info, t);
-+
- spin_unlock_irqrestore(&t->sighand->siglock, flags);
-
-+ gr_log_signal(sig, t);
-+ gr_handle_crash(t, sig);
-+
- return ret;
- }
-
-@@ -1021,6 +1028,8 @@ int group_send_sig_info(int sig, struct
- ret = __group_send_sig_info(sig, info, p);
- unlock_task_sighand(p, &flags);
- }
-+ if (!ret)
-+ gr_log_signal(sig, p);
- }
-
- return ret;
-diff -urNp linux-2.6.28.7/kernel/softirq.c linux-2.6.28.7/kernel/softirq.c
---- linux-2.6.28.7/kernel/softirq.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/softirq.c 2009-02-21 09:37:50.000000000 -0500
-@@ -463,9 +463,9 @@ void tasklet_kill(struct tasklet_struct
- printk("Attempt to kill tasklet from interrupt\n");
-
- while (test_and_set_bit(TASKLET_STATE_SCHED, &t->state)) {
-- do
-+ do {
- yield();
-- while (test_bit(TASKLET_STATE_SCHED, &t->state));
-+ } while (test_bit(TASKLET_STATE_SCHED, &t->state));
- }
- tasklet_unlock_wait(t);
- clear_bit(TASKLET_STATE_SCHED, &t->state);
-diff -urNp linux-2.6.28.7/kernel/sys.c linux-2.6.28.7/kernel/sys.c
---- linux-2.6.28.7/kernel/sys.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/sys.c 2009-02-21 09:37:50.000000000 -0500
-@@ -125,6 +125,12 @@ static int set_one_prio(struct task_stru
- error = -EACCES;
- goto out;
- }
-+
-+ if (gr_handle_chroot_setpriority(p, niceval)) {
-+ error = -EACCES;
-+ goto out;
-+ }
-+
- no_nice = security_task_setnice(p, niceval);
- if (no_nice) {
- error = no_nice;
-@@ -181,10 +187,10 @@ SYSCALL_DEFINE3(setpriority, int, which,
- if ((who != current->uid) && !(user = find_user(who)))
- goto out_unlock; /* No processes for this user */
-
-- do_each_thread(g, p)
-+ do_each_thread(g, p) {
- if (p->uid == who)
- error = set_one_prio(p, niceval, error);
-- while_each_thread(g, p);
-+ } while_each_thread(g, p);
- if (who != current->uid)
- free_uid(user); /* For find_user() */
- break;
-@@ -243,13 +249,13 @@ SYSCALL_DEFINE2(getpriority, int, which,
- if ((who != current->uid) && !(user = find_user(who)))
- goto out_unlock; /* No processes for this user */
-
-- do_each_thread(g, p)
-+ do_each_thread(g, p) {
- if (p->uid == who) {
- niceval = 20 - task_nice(p);
- if (niceval > retval)
- retval = niceval;
- }
-- while_each_thread(g, p);
-+ } while_each_thread(g, p);
- if (who != current->uid)
- free_uid(user); /* for find_user() */
- break;
-@@ -500,6 +506,10 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g
- else
- return -EPERM;
- }
-+
-+ if (gr_check_group_change(new_rgid, new_egid, -1))
-+ return -EPERM;
-+
- if (new_egid != old_egid) {
- set_dumpable(current->mm, suid_dumpable);
- smp_wmb();
-@@ -507,6 +517,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g
- if (rgid != (gid_t) -1 ||
- (egid != (gid_t) -1 && egid != old_rgid))
- current->sgid = new_egid;
-+
-+ gr_set_role_label(current, current->uid, new_rgid);
-+
- current->fsgid = new_egid;
- current->egid = new_egid;
- current->gid = new_rgid;
-@@ -529,11 +542,17 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
- if (retval)
- return retval;
-
-+ if (gr_check_group_change(gid, gid, gid))
-+ return -EPERM;
-+
- if (capable(CAP_SETGID)) {
- if (old_egid != gid) {
- set_dumpable(current->mm, suid_dumpable);
- smp_wmb();
- }
-+
-+ gr_set_role_label(current, current->uid, gid);
-+
- current->gid = current->egid = current->sgid = current->fsgid = gid;
- } else if ((gid == current->gid) || (gid == current->sgid)) {
- if (old_egid != gid) {
-@@ -571,6 +590,9 @@ static int set_user(uid_t new_ruid, int
- set_dumpable(current->mm, suid_dumpable);
- smp_wmb();
- }
-+
-+ gr_set_role_label(current, new_ruid, current->gid);
-+
- current->uid = new_ruid;
- return 0;
- }
-@@ -620,6 +642,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, u
- return -EPERM;
- }
-
-+ if (gr_check_user_change(new_ruid, new_euid, -1))
-+ return -EPERM;
-+
- if (new_ruid != old_ruid && set_user(new_ruid, new_euid != old_euid) < 0)
- return -EAGAIN;
-
-@@ -666,6 +691,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
- old_suid = current->suid;
- new_suid = old_suid;
-
-+ if (gr_check_crash_uid(uid))
-+ return -EPERM;
-+
-+ if (gr_check_user_change(uid, uid, uid))
-+ return -EPERM;
-+
- if (capable(CAP_SETUID)) {
- if (uid != old_ruid && set_user(uid, old_euid != uid) < 0)
- return -EAGAIN;
-@@ -713,6 +744,10 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid,
- (suid != current->euid) && (suid != current->suid))
- return -EPERM;
- }
-+
-+ if (gr_check_user_change(ruid, euid, -1))
-+ return -EPERM;
-+
- if (ruid != (uid_t) -1) {
- if (ruid != current->uid && set_user(ruid, euid != current->euid) < 0)
- return -EAGAIN;
-@@ -767,6 +802,10 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid,
- (sgid != current->egid) && (sgid != current->sgid))
- return -EPERM;
- }
-+
-+ if (gr_check_group_change(rgid, egid, -1))
-+ return -EPERM;
-+
- if (egid != (gid_t) -1) {
- if (egid != current->egid) {
- set_dumpable(current->mm, suid_dumpable);
-@@ -775,8 +814,10 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid,
- current->egid = egid;
- }
- current->fsgid = current->egid;
-- if (rgid != (gid_t) -1)
-+ if (rgid != (gid_t) -1) {
-+ gr_set_role_label(current, current->uid, rgid);
- current->gid = rgid;
-+ }
- if (sgid != (gid_t) -1)
- current->sgid = sgid;
-
-@@ -811,6 +852,9 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
- if (security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS))
- return old_fsuid;
-
-+ if (gr_check_user_change(-1, -1, uid))
-+ return old_fsuid;
-+
- if (uid == current->uid || uid == current->euid ||
- uid == current->suid || uid == current->fsuid ||
- capable(CAP_SETUID)) {
-@@ -843,6 +887,9 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
- if (gid == current->gid || gid == current->egid ||
- gid == current->sgid || gid == current->fsgid ||
- capable(CAP_SETGID)) {
-+ if (gr_check_group_change(-1, -1, gid))
-+ return old_fsgid;
-+
- if (gid != old_fsgid) {
- set_dumpable(current->mm, suid_dumpable);
- smp_wmb();
-@@ -914,7 +961,10 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid
- write_lock_irq(&tasklist_lock);
-
- err = -ESRCH;
-- p = find_task_by_vpid(pid);
-+ /* grsec: replaced find_task_by_vpid with equivalent call which
-+ lacks the chroot restriction
-+ */
-+ p = pid_task(find_pid_ns(pid, current->nsproxy->pid_ns), PIDTYPE_PID);
- if (!p)
- goto out;
-
-@@ -1640,7 +1690,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsi
- error = get_dumpable(current->mm);
- break;
- case PR_SET_DUMPABLE:
-- if (arg2 < 0 || arg2 > 1) {
-+ if (arg2 > 1) {
- error = -EINVAL;
- break;
- }
-diff -urNp linux-2.6.28.7/kernel/sysctl.c linux-2.6.28.7/kernel/sysctl.c
---- linux-2.6.28.7/kernel/sysctl.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/sysctl.c 2009-03-07 04:29:14.000000000 -0500
-@@ -61,6 +61,13 @@
- static int deprecated_sysctl_warning(struct __sysctl_args *args);
-
- #if defined(CONFIG_SYSCTL)
-+#include <linux/grsecurity.h>
-+#include <linux/grinternal.h>
-+
-+extern __u32 gr_handle_sysctl(const ctl_table *table, const int op);
-+extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
-+ const int op);
-+extern int gr_handle_chroot_sysctl(const int op);
-
- /* External variables not in a header file. */
- extern int C_A_D;
-@@ -152,6 +159,7 @@ static int proc_do_cad_pid(struct ctl_ta
- static int proc_taint(struct ctl_table *table, int write, struct file *filp,
- void __user *buffer, size_t *lenp, loff_t *ppos);
- #endif
-+extern ctl_table grsecurity_table[];
-
- static struct ctl_table root_table[];
- static struct ctl_table_root sysctl_table_root;
-@@ -184,6 +192,21 @@ extern struct ctl_table epoll_table[];
- int sysctl_legacy_va_layout;
- #endif
-
-+#ifdef CONFIG_PAX_SOFTMODE
-+static ctl_table pax_table[] = {
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "softmode",
-+ .data = &pax_softmode,
-+ .maxlen = sizeof(unsigned int),
-+ .mode = 0600,
-+ .proc_handler = &proc_dointvec,
-+ },
-+
-+ { .ctl_name = 0 }
-+};
-+#endif
-+
- extern int prove_locking;
- extern int lock_stat;
-
-@@ -856,6 +879,25 @@ static struct ctl_table kern_table[] = {
- .proc_handler = &scan_unevictable_handler,
- },
- #endif
-+
-+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_MODSTOP)
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "grsecurity",
-+ .mode = 0500,
-+ .child = grsecurity_table,
-+ },
-+#endif
-+
-+#ifdef CONFIG_PAX_SOFTMODE
-+ {
-+ .ctl_name = CTL_UNNUMBERED,
-+ .procname = "pax",
-+ .mode = 0500,
-+ .child = pax_table,
-+ },
-+#endif
-+
- /*
- * NOTE: do not add new entries to this table unless you have read
- * Documentation/sysctl/ctl_unnumbered.txt
-@@ -1562,6 +1604,8 @@ static int do_sysctl_strategy(struct ctl
- return 0;
- }
-
-+static int sysctl_perm_nochk(struct ctl_table_root *root, struct ctl_table *table, int op);
-+
- static int parse_table(int __user *name, int nlen,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen,
-@@ -1580,7 +1624,7 @@ repeat:
- if (n == table->ctl_name) {
- int error;
- if (table->child) {
-- if (sysctl_perm(root, table, MAY_EXEC))
-+ if (sysctl_perm_nochk(root, table, MAY_EXEC))
- return -EPERM;
- name++;
- nlen--;
-@@ -1665,6 +1709,33 @@ int sysctl_perm(struct ctl_table_root *r
- int error;
- int mode;
-
-+ if (table->parent != NULL && table->parent->procname != NULL &&
-+ table->procname != NULL &&
-+ gr_handle_sysctl_mod(table->parent->procname, table->procname, op))
-+ return -EACCES;
-+ if (gr_handle_chroot_sysctl(op))
-+ return -EACCES;
-+ error = gr_handle_sysctl(table, op);
-+ if (error)
-+ return error;
-+
-+ error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC));
-+ if (error)
-+ return error;
-+
-+ if (root->permissions)
-+ mode = root->permissions(root, current->nsproxy, table);
-+ else
-+ mode = table->mode;
-+
-+ return test_perm(mode, op);
-+}
-+
-+int sysctl_perm_nochk(struct ctl_table_root *root, struct ctl_table *table, int op)
-+{
-+ int error;
-+ int mode;
-+
- error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC));
- if (error)
- return error;
-diff -urNp linux-2.6.28.7/kernel/time/tick-broadcast.c linux-2.6.28.7/kernel/time/tick-broadcast.c
---- linux-2.6.28.7/kernel/time/tick-broadcast.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/time/tick-broadcast.c 2009-02-21 09:37:50.000000000 -0500
-@@ -114,7 +114,7 @@ int tick_device_uses_broadcast(struct cl
- * then clear the broadcast bit.
- */
- if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) {
-- int cpu = smp_processor_id();
-+ cpu = smp_processor_id();
-
- cpu_clear(cpu, tick_broadcast_mask);
- tick_broadcast_clear_oneshot(cpu);
-diff -urNp linux-2.6.28.7/kernel/time.c linux-2.6.28.7/kernel/time.c
---- linux-2.6.28.7/kernel/time.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/time.c 2009-02-21 09:37:50.000000000 -0500
-@@ -92,6 +92,9 @@ SYSCALL_DEFINE1(stime, time_t __user *,
- return err;
-
- do_settimeofday(&tv);
-+
-+ gr_log_timechange();
-+
- return 0;
- }
-
-@@ -200,6 +203,8 @@ SYSCALL_DEFINE2(settimeofday, struct tim
- return -EFAULT;
- }
-
-+ gr_log_timechange();
-+
- return do_sys_settimeofday(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
- }
-
-@@ -238,7 +243,7 @@ EXPORT_SYMBOL(current_fs_time);
- * Avoid unnecessary multiplications/divisions in the
- * two most common HZ cases:
- */
--unsigned int inline jiffies_to_msecs(const unsigned long j)
-+inline unsigned int jiffies_to_msecs(const unsigned long j)
- {
- #if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
- return (MSEC_PER_SEC / HZ) * j;
-@@ -254,7 +259,7 @@ unsigned int inline jiffies_to_msecs(con
- }
- EXPORT_SYMBOL(jiffies_to_msecs);
-
--unsigned int inline jiffies_to_usecs(const unsigned long j)
-+inline unsigned int jiffies_to_usecs(const unsigned long j)
- {
- #if HZ <= USEC_PER_SEC && !(USEC_PER_SEC % HZ)
- return (USEC_PER_SEC / HZ) * j;
-diff -urNp linux-2.6.28.7/kernel/utsname_sysctl.c linux-2.6.28.7/kernel/utsname_sysctl.c
---- linux-2.6.28.7/kernel/utsname_sysctl.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/kernel/utsname_sysctl.c 2009-02-21 09:37:50.000000000 -0500
-@@ -123,7 +123,7 @@ static struct ctl_table uts_kern_table[]
- .proc_handler = proc_do_uts_string,
- .strategy = sysctl_uts_string,
- },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static struct ctl_table uts_root_table[] = {
-@@ -133,7 +133,7 @@ static struct ctl_table uts_root_table[]
- .mode = 0555,
- .child = uts_kern_table,
- },
-- {}
-+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
- };
-
- static int __init utsname_sysctl_init(void)
-diff -urNp linux-2.6.28.7/lib/radix-tree.c linux-2.6.28.7/lib/radix-tree.c
---- linux-2.6.28.7/lib/radix-tree.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/lib/radix-tree.c 2009-02-21 09:37:50.000000000 -0500
-@@ -81,7 +81,7 @@ struct radix_tree_preload {
- int nr;
- struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH];
- };
--DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
-+DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
-
- static inline gfp_t root_gfp_mask(struct radix_tree_root *root)
- {
-diff -urNp linux-2.6.28.7/localversion-grsec linux-2.6.28.7/localversion-grsec
---- linux-2.6.28.7/localversion-grsec 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/localversion-grsec 2009-02-21 09:37:50.000000000 -0500
-@@ -0,0 +1 @@
-+-grsec
-diff -urNp linux-2.6.28.7/Makefile linux-2.6.28.7/Makefile
---- linux-2.6.28.7/Makefile 2009-02-20 22:26:38.000000000 -0500
-+++ linux-2.6.28.7/Makefile 2009-02-21 09:37:50.000000000 -0500
-@@ -221,7 +221,7 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH"
-
- HOSTCC = gcc
- HOSTCXX = g++
--HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
-+HOSTCFLAGS = -Wall -W -Wno-unused -Wno-sign-compare -Wstrict-prototypes -O2 -fomit-frame-pointer
- HOSTCXXFLAGS = -O2
-
- # Decide whether to build built-in, modular, or both.
-@@ -619,7 +619,7 @@ export mod_strip_cmd
-
-
- ifeq ($(KBUILD_EXTMOD),)
--core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
-+core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
-
- vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
- $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
-diff -urNp linux-2.6.28.7/mm/filemap.c linux-2.6.28.7/mm/filemap.c
---- linux-2.6.28.7/mm/filemap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/filemap.c 2009-02-21 09:37:50.000000000 -0500
-@@ -1609,7 +1609,7 @@ int generic_file_mmap(struct file * file
- struct address_space *mapping = file->f_mapping;
-
- if (!mapping->a_ops->readpage)
-- return -ENOEXEC;
-+ return -ENODEV;
- file_accessed(file);
- vma->vm_ops = &generic_file_vm_ops;
- vma->vm_flags |= VM_CAN_NONLINEAR;
-@@ -1970,6 +1970,7 @@ inline int generic_write_checks(struct f
- *pos = i_size_read(inode);
-
- if (limit != RLIM_INFINITY) {
-+ gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
- if (*pos >= limit) {
- send_sig(SIGXFSZ, current, 0);
- return -EFBIG;
-diff -urNp linux-2.6.28.7/mm/fremap.c linux-2.6.28.7/mm/fremap.c
---- linux-2.6.28.7/mm/fremap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/fremap.c 2009-02-21 09:37:50.000000000 -0500
-@@ -153,6 +153,13 @@ SYSCALL_DEFINE5(remap_file_pages, unsign
- retry:
- vma = find_vma(mm, start);
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC)) {
-+ up_read(&mm->mmap_sem);
-+ return err;
-+ }
-+#endif
-+
- /*
- * Make sure the vma is shared, that it supports prefaulting,
- * and that the remapped range is valid and fully within
-diff -urNp linux-2.6.28.7/mm/hugetlb.c linux-2.6.28.7/mm/hugetlb.c
---- linux-2.6.28.7/mm/hugetlb.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/hugetlb.c 2009-02-21 09:37:50.000000000 -0500
-@@ -1832,6 +1832,26 @@ static int unmap_ref_private(struct mm_s
- return 1;
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
-+{
-+ struct mm_struct *mm = vma->vm_mm;
-+ struct vm_area_struct *vma_m;
-+ unsigned long address_m;
-+ pte_t *ptep_m;
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (!vma_m)
-+ return;
-+
-+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
-+ address_m = address + SEGMEXEC_TASK_SIZE;
-+ ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
-+ get_page(page_m);
-+ set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
-+}
-+#endif
-+
- static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep, pte_t pte,
- struct page *pagecache_page)
-@@ -1903,6 +1923,11 @@ retry_avoidcopy:
- huge_ptep_clear_flush(vma, address, ptep);
- set_huge_pte_at(mm, address, ptep,
- make_huge_pte(vma, new_page, 1));
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ pax_mirror_huge_pte(vma, address, new_page);
-+#endif
-+
- /* Make the old page be freed below */
- new_page = old_page;
- }
-@@ -2012,6 +2037,10 @@ retry:
- && (vma->vm_flags & VM_SHARED)));
- set_huge_pte_at(mm, address, ptep, new_pte);
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ pax_mirror_huge_pte(vma, address, page);
-+#endif
-+
- if (write_access && !(vma->vm_flags & VM_SHARED)) {
- /* Optimization, do the COW without a second fault */
- ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
-@@ -2040,6 +2069,28 @@ int hugetlb_fault(struct mm_struct *mm,
- static DEFINE_MUTEX(hugetlb_instantiation_mutex);
- struct hstate *h = hstate_vma(vma);
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m;
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (vma_m) {
-+ unsigned long address_m;
-+
-+ if (vma->vm_start > vma_m->vm_start) {
-+ address_m = address;
-+ address -= SEGMEXEC_TASK_SIZE;
-+ vma = vma_m;
-+ h = hstate_vma(vma);
-+ } else
-+ address_m = address + SEGMEXEC_TASK_SIZE;
-+
-+ if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
-+ return VM_FAULT_OOM;
-+ address_m &= HPAGE_MASK;
-+ unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
-+ }
-+#endif
-+
- ptep = huge_pte_alloc(mm, address, huge_page_size(h));
- if (!ptep)
- return VM_FAULT_OOM;
-diff -urNp linux-2.6.28.7/mm/madvise.c linux-2.6.28.7/mm/madvise.c
---- linux-2.6.28.7/mm/madvise.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/madvise.c 2009-02-21 09:37:50.000000000 -0500
-@@ -43,6 +43,10 @@ static long madvise_behavior(struct vm_a
- pgoff_t pgoff;
- int new_flags = vma->vm_flags;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m;
-+#endif
-+
- switch (behavior) {
- case MADV_NORMAL:
- new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
-@@ -92,6 +96,13 @@ success:
- /*
- * vm_flags is protected by the mmap_sem held in write mode.
- */
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (vma_m)
-+ vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
-+#endif
-+
- vma->vm_flags = new_flags;
-
- out:
-@@ -236,6 +247,17 @@ madvise_vma(struct vm_area_struct *vma,
-
- case MADV_DONTNEED:
- error = madvise_dontneed(vma, prev, start, end);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (!error) {
-+ struct vm_area_struct *vma_m, *prev_m;
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (vma_m)
-+ error = madvise_dontneed(vma_m, &prev_m, start + SEGMEXEC_TASK_SIZE, end + SEGMEXEC_TASK_SIZE);
-+ }
-+#endif
-+
- break;
-
- default:
-@@ -308,6 +330,16 @@ SYSCALL_DEFINE3(madvise, unsigned long,
- if (end < start)
- goto out;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
-+ if (end > SEGMEXEC_TASK_SIZE)
-+ goto out;
-+ } else
-+#endif
-+
-+ if (end > TASK_SIZE)
-+ goto out;
-+
- error = 0;
- if (end == start)
- goto out;
-diff -urNp linux-2.6.28.7/mm/memory.c linux-2.6.28.7/mm/memory.c
---- linux-2.6.28.7/mm/memory.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/mm/memory.c 2009-02-21 09:37:50.000000000 -0500
-@@ -47,6 +47,7 @@
- #include <linux/pagemap.h>
- #include <linux/rmap.h>
- #include <linux/module.h>
-+#include <linux/security.h>
- #include <linux/delayacct.h>
- #include <linux/init.h>
- #include <linux/writeback.h>
-@@ -1151,11 +1152,11 @@ int __get_user_pages(struct task_struct
- vm_flags &= force ? (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE);
- i = 0;
-
-- do {
-+ while (len) {
- struct vm_area_struct *vma;
- unsigned int foll_flags;
-
-- vma = find_extend_vma(mm, start);
-+ vma = find_vma(mm, start);
- if (!vma && in_gate_area(tsk, start)) {
- unsigned long pg = start & PAGE_MASK;
- struct vm_area_struct *gate_vma = get_gate_vma(tsk);
-@@ -1197,7 +1198,7 @@ int __get_user_pages(struct task_struct
- continue;
- }
-
-- if (!vma ||
-+ if (!vma || start < vma->vm_start ||
- (vma->vm_flags & (VM_IO | VM_PFNMAP)) ||
- (!ignore && !(vm_flags & vma->vm_flags)))
- return i ? : -EFAULT;
-@@ -1271,7 +1272,7 @@ int __get_user_pages(struct task_struct
- start += PAGE_SIZE;
- len--;
- } while (len && start < vma->vm_end);
-- } while (len);
-+ }
- return i;
- }
-
-@@ -1760,6 +1761,186 @@ static inline void cow_user_page(struct
- copy_user_highpage(dst, src, va, vma);
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
-+{
-+ struct mm_struct *mm = vma->vm_mm;
-+ spinlock_t *ptl;
-+ pte_t *pte, entry;
-+
-+ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
-+ entry = *pte;
-+ if (!pte_present(entry)) {
-+ if (!pte_none(entry)) {
-+ BUG_ON(pte_file(entry));
-+ free_swap_and_cache(pte_to_swp_entry(entry));
-+ pte_clear_not_present_full(mm, address, pte, 0);
-+ }
-+ } else {
-+ struct page *page;
-+
-+ flush_cache_page(vma, address, pte_pfn(entry));
-+ entry = ptep_clear_flush(vma, address, pte);
-+ BUG_ON(pte_dirty(entry));
-+ page = vm_normal_page(vma, address, entry);
-+ if (page) {
-+ update_hiwater_rss(mm);
-+ if (PageAnon(page))
-+ dec_mm_counter(mm, anon_rss);
-+ else
-+ dec_mm_counter(mm, file_rss);
-+ page_remove_rmap(page, vma);
-+ page_cache_release(page);
-+ }
-+ }
-+ pte_unmap_unlock(pte, ptl);
-+}
-+
-+/* PaX: if vma is mirrored, synchronize the mirror's PTE
-+ *
-+ * the ptl of the lower mapped page is held on entry and is not released on exit
-+ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
-+ */
-+static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
-+{
-+ struct mm_struct *mm = vma->vm_mm;
-+ unsigned long address_m;
-+ spinlock_t *ptl_m;
-+ struct vm_area_struct *vma_m;
-+ pmd_t *pmd_m;
-+ pte_t *pte_m, entry_m;
-+
-+ BUG_ON(!page_m || !PageAnon(page_m));
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (!vma_m)
-+ return;
-+
-+ BUG_ON(!PageLocked(page_m));
-+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
-+ address_m = address + SEGMEXEC_TASK_SIZE;
-+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
-+ pte_m = pte_offset_map_nested(pmd_m, address_m);
-+ ptl_m = pte_lockptr(mm, pmd_m);
-+ if (ptl != ptl_m) {
-+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
-+ if (!pte_none(*pte_m))
-+ goto out;
-+ }
-+
-+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
-+ page_cache_get(page_m);
-+ page_add_anon_rmap(page_m, vma_m, address_m);
-+ inc_mm_counter(mm, anon_rss);
-+ set_pte_at(mm, address_m, pte_m, entry_m);
-+ update_mmu_cache(vma_m, address_m, entry_m);
-+out:
-+ if (ptl != ptl_m)
-+ spin_unlock(ptl_m);
-+ pte_unmap_nested(pte_m);
-+ unlock_page(page_m);
-+}
-+
-+void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
-+{
-+ struct mm_struct *mm = vma->vm_mm;
-+ unsigned long address_m;
-+ spinlock_t *ptl_m;
-+ struct vm_area_struct *vma_m;
-+ pmd_t *pmd_m;
-+ pte_t *pte_m, entry_m;
-+
-+ BUG_ON(!page_m || PageAnon(page_m));
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (!vma_m)
-+ return;
-+
-+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
-+ address_m = address + SEGMEXEC_TASK_SIZE;
-+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
-+ pte_m = pte_offset_map_nested(pmd_m, address_m);
-+ ptl_m = pte_lockptr(mm, pmd_m);
-+ if (ptl != ptl_m) {
-+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
-+ if (!pte_none(*pte_m))
-+ goto out;
-+ }
-+
-+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
-+ page_cache_get(page_m);
-+ page_add_file_rmap(page_m);
-+ inc_mm_counter(mm, file_rss);
-+ set_pte_at(mm, address_m, pte_m, entry_m);
-+ update_mmu_cache(vma_m, address_m, entry_m);
-+out:
-+ if (ptl != ptl_m)
-+ spin_unlock(ptl_m);
-+ pte_unmap_nested(pte_m);
-+}
-+
-+static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
-+{
-+ struct mm_struct *mm = vma->vm_mm;
-+ unsigned long address_m;
-+ spinlock_t *ptl_m;
-+ struct vm_area_struct *vma_m;
-+ pmd_t *pmd_m;
-+ pte_t *pte_m, entry_m;
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (!vma_m)
-+ return;
-+
-+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
-+ address_m = address + SEGMEXEC_TASK_SIZE;
-+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
-+ pte_m = pte_offset_map_nested(pmd_m, address_m);
-+ ptl_m = pte_lockptr(mm, pmd_m);
-+ if (ptl != ptl_m) {
-+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
-+ if (!pte_none(*pte_m))
-+ goto out;
-+ }
-+
-+ entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
-+ set_pte_at(mm, address_m, pte_m, entry_m);
-+out:
-+ if (ptl != ptl_m)
-+ spin_unlock(ptl_m);
-+ pte_unmap_nested(pte_m);
-+}
-+
-+static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
-+{
-+ struct page *page_m;
-+ pte_t entry;
-+
-+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
-+ goto out;
-+
-+ entry = *pte;
-+ page_m = vm_normal_page(vma, address, entry);
-+ if (!page_m)
-+ pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
-+ else if (PageAnon(page_m)) {
-+ if (pax_find_mirror_vma(vma)) {
-+ pte_unmap_unlock(pte, ptl);
-+ lock_page(page_m);
-+ pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
-+ if (pte_same(entry, *pte))
-+ pax_mirror_anon_pte(vma, address, page_m, ptl);
-+ else
-+ unlock_page(page_m);
-+ }
-+ } else
-+ pax_mirror_file_pte(vma, address, page_m, ptl);
-+
-+out:
-+ pte_unmap_unlock(pte, ptl);
-+}
-+#endif
-+
- /*
- * This routine handles present pages, when users try to write
- * to a shared page. It is done by copying the page to a new address
-@@ -1897,6 +2078,12 @@ gotten:
- */
- page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
- if (likely(pte_same(*page_table, orig_pte))) {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (pax_find_mirror_vma(vma))
-+ BUG_ON(!trylock_page(new_page));
-+#endif
-+
- if (old_page) {
- if (!PageAnon(old_page)) {
- dec_mm_counter(mm, file_rss);
-@@ -1947,6 +2134,10 @@ gotten:
- page_remove_rmap(old_page, vma);
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ pax_mirror_anon_pte(vma, address, new_page, ptl);
-+#endif
-+
- /* Free the old page.. */
- new_page = old_page;
- ret |= VM_FAULT_WRITE;
-@@ -2206,6 +2397,7 @@ int vmtruncate(struct inode * inode, lof
- unsigned long limit;
-
- limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
-+ gr_learn_resource(current, RLIMIT_FSIZE, offset, 1);
- if (limit != RLIM_INFINITY && offset > limit)
- goto out_sig;
- if (offset > inode->i_sb->s_maxbytes)
-@@ -2357,6 +2549,11 @@ static int do_swap_page(struct mm_struct
- swap_free(entry);
- if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
- remove_exclusive_swap_page(page);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (write_access || !pax_find_mirror_vma(vma))
-+#endif
-+
- unlock_page(page);
-
- if (write_access) {
-@@ -2368,6 +2565,11 @@ static int do_swap_page(struct mm_struct
-
- /* No need to invalidate - it was non-present before */
- update_mmu_cache(vma, address, pte);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ pax_mirror_anon_pte(vma, address, page, ptl);
-+#endif
-+
- unlock:
- pte_unmap_unlock(page_table, ptl);
- out:
-@@ -2412,6 +2614,12 @@ static int do_anonymous_page(struct mm_s
- page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
- if (!pte_none(*page_table))
- goto release;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (pax_find_mirror_vma(vma))
-+ BUG_ON(!trylock_page(page));
-+#endif
-+
- inc_mm_counter(mm, anon_rss);
- SetPageSwapBacked(page);
- lru_cache_add_active_or_unevictable(page, vma);
-@@ -2420,6 +2628,11 @@ static int do_anonymous_page(struct mm_s
-
- /* No need to invalidate - it was non-present before */
- update_mmu_cache(vma, address, entry);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ pax_mirror_anon_pte(vma, address, page, ptl);
-+#endif
-+
- unlock:
- pte_unmap_unlock(page_table, ptl);
- return 0;
-@@ -2556,6 +2769,12 @@ static int __do_fault(struct mm_struct *
- */
- /* Only go through if we didn't race with anybody else... */
- if (likely(pte_same(*page_table, orig_pte))) {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (anon && pax_find_mirror_vma(vma))
-+ BUG_ON(!trylock_page(page));
-+#endif
-+
- flush_icache_page(vma, page);
- entry = mk_pte(page, vma->vm_page_prot);
- if (flags & FAULT_FLAG_WRITE)
-@@ -2578,6 +2797,14 @@ static int __do_fault(struct mm_struct *
-
- /* no need to invalidate: a not-present page won't be cached */
- update_mmu_cache(vma, address, entry);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (anon)
-+ pax_mirror_anon_pte(vma, address, page, ptl);
-+ else
-+ pax_mirror_file_pte(vma, address, page, ptl);
-+#endif
-+
- } else {
- if (charged)
- mem_cgroup_uncharge_page(page);
-@@ -2711,6 +2938,12 @@ static inline int handle_pte_fault(struc
- if (write_access)
- flush_tlb_page(vma, address);
- }
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ pax_mirror_pte(vma, address, pte, pmd, ptl);
-+ return 0;
-+#endif
-+
- unlock:
- pte_unmap_unlock(pte, ptl);
- return 0;
-@@ -2727,6 +2960,10 @@ int handle_mm_fault(struct mm_struct *mm
- pmd_t *pmd;
- pte_t *pte;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m;
-+#endif
-+
- __set_current_state(TASK_RUNNING);
-
- count_vm_event(PGFAULT);
-@@ -2734,6 +2971,34 @@ int handle_mm_fault(struct mm_struct *mm
- if (unlikely(is_vm_hugetlb_page(vma)))
- return hugetlb_fault(mm, vma, address, write_access);
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (vma_m) {
-+ unsigned long address_m;
-+ pgd_t *pgd_m;
-+ pud_t *pud_m;
-+ pmd_t *pmd_m;
-+
-+ if (vma->vm_start > vma_m->vm_start) {
-+ address_m = address;
-+ address -= SEGMEXEC_TASK_SIZE;
-+ vma = vma_m;
-+ } else
-+ address_m = address + SEGMEXEC_TASK_SIZE;
-+
-+ pgd_m = pgd_offset(mm, address_m);
-+ pud_m = pud_alloc(mm, pgd_m, address_m);
-+ if (!pud_m)
-+ return VM_FAULT_OOM;
-+ pmd_m = pmd_alloc(mm, pud_m, address_m);
-+ if (!pmd_m)
-+ return VM_FAULT_OOM;
-+ if (!pmd_present(*pmd_m) && __pte_alloc(mm, pmd_m, address_m))
-+ return VM_FAULT_OOM;
-+ pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
-+ }
-+#endif
-+
- pgd = pgd_offset(mm, address);
- pud = pud_alloc(mm, pgd, address);
- if (!pud)
-@@ -2831,7 +3096,7 @@ static int __init gate_vma_init(void)
- gate_vma.vm_start = FIXADDR_USER_START;
- gate_vma.vm_end = FIXADDR_USER_END;
- gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-- gate_vma.vm_page_prot = __P101;
-+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
- /*
- * Make sure the vDSO gets into every core dump.
- * Dumping its contents makes post-mortem fully interpretable later
-diff -urNp linux-2.6.28.7/mm/mempolicy.c linux-2.6.28.7/mm/mempolicy.c
---- linux-2.6.28.7/mm/mempolicy.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/mempolicy.c 2009-02-21 09:37:50.000000000 -0500
-@@ -551,6 +551,10 @@ static int mbind_range(struct vm_area_st
- struct vm_area_struct *next;
- int err;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m;
-+#endif
-+
- err = 0;
- for (; vma && vma->vm_start < end; vma = next) {
- next = vma->vm_next;
-@@ -562,6 +566,16 @@ static int mbind_range(struct vm_area_st
- err = policy_vma(vma, new);
- if (err)
- break;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (vma_m) {
-+ err = policy_vma(vma_m, new);
-+ if (err)
-+ break;
-+ }
-+#endif
-+
- }
- return err;
- }
-@@ -954,6 +968,17 @@ static long do_mbind(unsigned long start
-
- if (end < start)
- return -EINVAL;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
-+ if (end > SEGMEXEC_TASK_SIZE)
-+ return -EINVAL;
-+ } else
-+#endif
-+
-+ if (end > TASK_SIZE)
-+ return -EINVAL;
-+
- if (end == start)
- return 0;
-
-diff -urNp linux-2.6.28.7/mm/migrate.c linux-2.6.28.7/mm/migrate.c
---- linux-2.6.28.7/mm/migrate.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/migrate.c 2009-02-21 09:37:50.000000000 -0500
-@@ -1139,7 +1139,7 @@ int migrate_vmas(struct mm_struct *mm, c
- struct vm_area_struct *vma;
- int err = 0;
-
-- for(vma = mm->mmap; vma->vm_next && !err; vma = vma->vm_next) {
-+ for(vma = mm->mmap; vma && !err; vma = vma->vm_next) {
- if (vma->vm_ops && vma->vm_ops->migrate) {
- err = vma->vm_ops->migrate(vma, to, from, flags);
- if (err)
-diff -urNp linux-2.6.28.7/mm/mlock.c linux-2.6.28.7/mm/mlock.c
---- linux-2.6.28.7/mm/mlock.c 2009-02-07 16:10:45.000000000 -0500
-+++ linux-2.6.28.7/mm/mlock.c 2009-02-21 09:37:50.000000000 -0500
-@@ -13,6 +13,7 @@
- #include <linux/pagemap.h>
- #include <linux/mempolicy.h>
- #include <linux/syscalls.h>
-+#include <linux/security.h>
- #include <linux/sched.h>
- #include <linux/module.h>
- #include <linux/rmap.h>
-@@ -452,6 +453,17 @@ static int do_mlock(unsigned long start,
- return -EINVAL;
- if (end == start)
- return 0;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
-+ if (end > SEGMEXEC_TASK_SIZE)
-+ return -EINVAL;
-+ } else
-+#endif
-+
-+ if (end > TASK_SIZE)
-+ return -EINVAL;
-+
- vma = find_vma_prev(current->mm, start, &prev);
- if (!vma || vma->vm_start > start)
- return -ENOMEM;
-@@ -511,6 +523,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, st
- lock_limit >>= PAGE_SHIFT;
-
- /* check against resource limits */
-+ gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
- if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
- error = do_mlock(start, len, 1);
- up_write(¤t->mm->mmap_sem);
-@@ -532,10 +545,10 @@ SYSCALL_DEFINE2(munlock, unsigned long,
- static int do_mlockall(int flags)
- {
- struct vm_area_struct * vma, * prev = NULL;
-- unsigned int def_flags = 0;
-+ unsigned int def_flags = current->mm->def_flags & ~VM_LOCKED;
-
- if (flags & MCL_FUTURE)
-- def_flags = VM_LOCKED;
-+ def_flags |= VM_LOCKED;
- current->mm->def_flags = def_flags;
- if (flags == MCL_FUTURE)
- goto out;
-@@ -543,6 +556,12 @@ static int do_mlockall(int flags)
- for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
- unsigned int newflags;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
-+ break;
-+#endif
-+
-+ BUG_ON(vma->vm_end > TASK_SIZE);
- newflags = vma->vm_flags | VM_LOCKED;
- if (!(flags & MCL_CURRENT))
- newflags &= ~VM_LOCKED;
-@@ -574,6 +593,7 @@ SYSCALL_DEFINE1(mlockall, int, flags)
- lock_limit >>= PAGE_SHIFT;
-
- ret = -ENOMEM;
-+ gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm, 1);
- if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
- capable(CAP_IPC_LOCK))
- ret = do_mlockall(flags);
-diff -urNp linux-2.6.28.7/mm/mmap.c linux-2.6.28.7/mm/mmap.c
---- linux-2.6.28.7/mm/mmap.c 2009-02-08 00:54:27.000000000 -0500
-+++ linux-2.6.28.7/mm/mmap.c 2009-02-21 09:37:50.000000000 -0500
-@@ -43,6 +43,16 @@
- #define arch_rebalance_pgtables(addr, len) (addr)
- #endif
-
-+static inline void verify_mm_writelocked(struct mm_struct *mm)
-+{
-+#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
-+ if (unlikely(down_read_trylock(&mm->mmap_sem))) {
-+ up_read(&mm->mmap_sem);
-+ BUG();
-+ }
-+#endif
-+}
-+
- static void unmap_region(struct mm_struct *mm,
- struct vm_area_struct *vma, struct vm_area_struct *prev,
- unsigned long start, unsigned long end);
-@@ -68,16 +78,25 @@ static void unmap_region(struct mm_struc
- * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
- *
- */
--pgprot_t protection_map[16] = {
-+pgprot_t protection_map[16] __read_only = {
- __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
- __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
- };
-
- pgprot_t vm_get_page_prot(unsigned long vm_flags)
- {
-- return __pgprot(pgprot_val(protection_map[vm_flags &
-+ pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
- (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
- pgprot_val(arch_vm_get_page_prot(vm_flags)));
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
-+ if (!nx_enabled &&
-+ (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
-+ (vm_flags & (VM_READ | VM_WRITE)))
-+ prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
-+#endif
-+
-+ return prot;
- }
- EXPORT_SYMBOL(vm_get_page_prot);
-
-@@ -233,6 +252,7 @@ static struct vm_area_struct *remove_vma
- struct vm_area_struct *next = vma->vm_next;
-
- might_sleep();
-+ BUG_ON(vma->vm_mirror);
- if (vma->vm_ops && vma->vm_ops->close)
- vma->vm_ops->close(vma);
- if (vma->vm_file) {
-@@ -269,6 +289,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
- * not page aligned -Ram Gupta
- */
- rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
-+ gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1);
- if (rlim < RLIM_INFINITY && (brk - mm->start_brk) +
- (mm->end_data - mm->start_data) > rlim)
- goto out;
-@@ -696,6 +717,12 @@ static int
- can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
- struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
- {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
-+ return 0;
-+#endif
-+
- if (is_mergeable_vma(vma, file, vm_flags) &&
- is_mergeable_anon_vma(anon_vma, vma->anon_vma)) {
- if (vma->vm_pgoff == vm_pgoff)
-@@ -715,6 +742,12 @@ static int
- can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
- struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
- {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
-+ return 0;
-+#endif
-+
- if (is_mergeable_vma(vma, file, vm_flags) &&
- is_mergeable_anon_vma(anon_vma, vma->anon_vma)) {
- pgoff_t vm_pglen;
-@@ -757,12 +790,19 @@ can_vma_merge_after(struct vm_area_struc
- struct vm_area_struct *vma_merge(struct mm_struct *mm,
- struct vm_area_struct *prev, unsigned long addr,
- unsigned long end, unsigned long vm_flags,
-- struct anon_vma *anon_vma, struct file *file,
-+ struct anon_vma *anon_vma, struct file *file,
- pgoff_t pgoff, struct mempolicy *policy)
- {
- pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
- struct vm_area_struct *area, *next;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
-+ struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
-+
-+ BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
-+#endif
-+
- /*
- * We later require that vma->vm_flags == vm_flags,
- * so this tests vma->vm_flags & VM_SPECIAL, too.
-@@ -778,6 +818,15 @@ struct vm_area_struct *vma_merge(struct
- if (next && next->vm_end == end) /* cases 6, 7, 8 */
- next = next->vm_next;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (prev)
-+ prev_m = pax_find_mirror_vma(prev);
-+ if (area)
-+ area_m = pax_find_mirror_vma(area);
-+ if (next)
-+ next_m = pax_find_mirror_vma(next);
-+#endif
-+
- /*
- * Can it merge with the predecessor?
- */
-@@ -797,9 +846,24 @@ struct vm_area_struct *vma_merge(struct
- /* cases 1, 6 */
- vma_adjust(prev, prev->vm_start,
- next->vm_end, prev->vm_pgoff, NULL);
-- } else /* cases 2, 5, 7 */
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (prev_m)
-+ vma_adjust(prev_m, prev_m->vm_start,
-+ next_m->vm_end, prev_m->vm_pgoff, NULL);
-+#endif
-+
-+ } else { /* cases 2, 5, 7 */
- vma_adjust(prev, prev->vm_start,
- end, prev->vm_pgoff, NULL);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (prev_m)
-+ vma_adjust(prev_m, prev_m->vm_start,
-+ end_m, prev_m->vm_pgoff, NULL);
-+#endif
-+
-+ }
- return prev;
- }
-
-@@ -810,12 +874,27 @@ struct vm_area_struct *vma_merge(struct
- mpol_equal(policy, vma_policy(next)) &&
- can_vma_merge_before(next, vm_flags,
- anon_vma, file, pgoff+pglen)) {
-- if (prev && addr < prev->vm_end) /* case 4 */
-+ if (prev && addr < prev->vm_end) { /* case 4 */
- vma_adjust(prev, prev->vm_start,
- addr, prev->vm_pgoff, NULL);
-- else /* cases 3, 8 */
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (prev_m)
-+ vma_adjust(prev_m, prev_m->vm_start,
-+ addr_m, prev_m->vm_pgoff, NULL);
-+#endif
-+
-+ } else { /* cases 3, 8 */
- vma_adjust(area, addr, next->vm_end,
- next->vm_pgoff - pglen, NULL);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (area_m)
-+ vma_adjust(area_m, addr_m, next_m->vm_end,
-+ next_m->vm_pgoff - pglen, NULL);
-+#endif
-+
-+ }
- return area;
- }
-
-@@ -890,14 +969,11 @@ none:
- void vm_stat_account(struct mm_struct *mm, unsigned long flags,
- struct file *file, long pages)
- {
-- const unsigned long stack_flags
-- = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
--
- if (file) {
- mm->shared_vm += pages;
- if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
- mm->exec_vm += pages;
-- } else if (flags & stack_flags)
-+ } else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
- mm->stack_vm += pages;
- if (flags & (VM_RESERVED|VM_IO))
- mm->reserved_vm += pages;
-@@ -925,7 +1001,7 @@ unsigned long do_mmap_pgoff(struct file
- * (the exception is when the underlying filesystem is noexec
- * mounted, in which case we dont add PROT_EXEC.)
- */
-- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
-+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
- if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
- prot |= PROT_EXEC;
-
-@@ -935,15 +1011,15 @@ unsigned long do_mmap_pgoff(struct file
- if (!(flags & MAP_FIXED))
- addr = round_hint_to_min(addr);
-
-- error = arch_mmap_check(addr, len, flags);
-- if (error)
-- return error;
--
- /* Careful about overflows.. */
- len = PAGE_ALIGN(len);
- if (!len || len > TASK_SIZE)
- return -ENOMEM;
-
-+ error = arch_mmap_check(addr, len, flags);
-+ if (error)
-+ return error;
-+
- /* offset overflow? */
- if ((pgoff + (len >> PAGE_SHIFT)) < pgoff)
- return -EOVERFLOW;
-@@ -955,7 +1031,7 @@ unsigned long do_mmap_pgoff(struct file
- /* Obtain the address to map to. we verify (or select) it and ensure
- * that it represents a valid section of the address space.
- */
-- addr = get_unmapped_area(file, addr, len, pgoff, flags);
-+ addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
- if (addr & ~PAGE_MASK)
- return addr;
-
-@@ -966,6 +1042,26 @@ unsigned long do_mmap_pgoff(struct file
- vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
- mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
-
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (mm->pax_flags & MF_PAX_MPROTECT) {
-+ if ((prot & (PROT_WRITE | PROT_EXEC)) != PROT_EXEC)
-+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
-+ else
-+ vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
-+ }
-+#endif
-+
-+ }
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
-+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
-+ vm_flags &= ~VM_PAGEEXEC;
-+#endif
-+
- if (flags & MAP_LOCKED) {
- if (!can_do_mlock())
- return -EPERM;
-@@ -979,6 +1075,7 @@ unsigned long do_mmap_pgoff(struct file
- locked += mm->locked_vm;
- lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
- lock_limit >>= PAGE_SHIFT;
-+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
- if (locked > lock_limit && !capable(CAP_IPC_LOCK))
- return -EAGAIN;
- }
-@@ -1051,6 +1148,9 @@ unsigned long do_mmap_pgoff(struct file
- if (error)
- return error;
-
-+ if (!gr_acl_handle_mmap(file, prot))
-+ return -EACCES;
-+
- return mmap_region(file, addr, len, flags, vm_flags, pgoff,
- accountable);
- }
-@@ -1064,10 +1164,10 @@ EXPORT_SYMBOL(do_mmap_pgoff);
- */
- int vma_wants_writenotify(struct vm_area_struct *vma)
- {
-- unsigned int vm_flags = vma->vm_flags;
-+ unsigned long vm_flags = vma->vm_flags;
-
- /* If it was private or non-writable, the write bit is already clear */
-- if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
-+ if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
- return 0;
-
- /* The backer wishes to know when pages are first written to? */
-@@ -1102,14 +1202,24 @@ unsigned long mmap_region(struct file *f
- unsigned long charged = 0;
- struct inode *inode = file ? file->f_path.dentry->d_inode : NULL;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m = NULL;
-+#endif
-+
-+ /*
-+ * mm->mmap_sem is required to protect against another thread
-+ * changing the mappings in case we sleep.
-+ */
-+ verify_mm_writelocked(mm);
-+
- /* Clear old maps */
- error = -ENOMEM;
--munmap_back:
- vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
- if (vma && vma->vm_start < addr + len) {
- if (do_munmap(mm, addr, len))
- return -ENOMEM;
-- goto munmap_back;
-+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
-+ BUG_ON(vma && vma->vm_start < addr + len);
- }
-
- /* Check against address space limit. */
-@@ -1158,6 +1268,16 @@ munmap_back:
- goto unacct_error;
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
-+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+ if (!vma_m) {
-+ error = -ENOMEM;
-+ goto free_vma;
-+ }
-+ }
-+#endif
-+
- vma->vm_mm = mm;
- vma->vm_start = addr;
- vma->vm_end = addr + len;
-@@ -1180,6 +1300,19 @@ munmap_back:
- error = file->f_op->mmap(file, vma);
- if (error)
- goto unmap_and_free_vma;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma_m && (vm_flags & VM_EXECUTABLE))
-+ added_exe_file_vma(mm);
-+#endif
-+
-+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
-+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
-+ vma->vm_flags |= VM_PAGEEXEC;
-+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
-+ }
-+#endif
-+
- if (vm_flags & VM_EXECUTABLE)
- added_exe_file_vma(mm);
- } else if (vm_flags & VM_SHARED) {
-@@ -1215,13 +1348,30 @@ munmap_back:
- if (merged_vma) {
- mpol_put(vma_policy(vma));
- kmem_cache_free(vm_area_cachep, vma);
-+ vma = NULL;
- fput(file);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma_m) {
-+ kmem_cache_free(vm_area_cachep, vma_m);
-+
-+ if (vm_flags & VM_EXECUTABLE)
-+ removed_exe_file_vma(mm);
-+ }
-+#endif
-+
- if (vm_flags & VM_EXECUTABLE)
- removed_exe_file_vma(mm);
- vma = merged_vma;
- } else {
- vma_link(mm, vma, prev, rb_link, rb_parent);
- file = vma->vm_file;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma_m)
-+ pax_mirror_vma(vma_m, vma);
-+#endif
-+
- }
-
- /* Once vma denies write, undo our temporary denial count */
-@@ -1230,6 +1380,7 @@ munmap_back:
- out:
- mm->total_vm += len >> PAGE_SHIFT;
- vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
-+ track_exec_limit(mm, addr, addr + len, vm_flags);
- if (vm_flags & VM_LOCKED) {
- /*
- * makes pages present; downgrades, drops, reacquires mmap_sem
-@@ -1252,6 +1403,12 @@ unmap_and_free_vma:
- unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
- charged = 0;
- free_vma:
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma_m)
-+ kmem_cache_free(vm_area_cachep, vma_m);
-+#endif
-+
- kmem_cache_free(vm_area_cachep, vma);
- unacct_error:
- if (charged)
-@@ -1285,6 +1442,10 @@ arch_get_unmapped_area(struct file *filp
- if (flags & MAP_FIXED)
- return addr;
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- if (addr) {
- addr = PAGE_ALIGN(addr);
- vma = find_vma(mm, addr);
-@@ -1293,10 +1454,10 @@ arch_get_unmapped_area(struct file *filp
- return addr;
- }
- if (len > mm->cached_hole_size) {
-- start_addr = addr = mm->free_area_cache;
-+ start_addr = addr = mm->free_area_cache;
- } else {
-- start_addr = addr = TASK_UNMAPPED_BASE;
-- mm->cached_hole_size = 0;
-+ start_addr = addr = mm->mmap_base;
-+ mm->cached_hole_size = 0;
- }
-
- full_search:
-@@ -1307,9 +1468,8 @@ full_search:
- * Start a new search - just in case we missed
- * some holes.
- */
-- if (start_addr != TASK_UNMAPPED_BASE) {
-- addr = TASK_UNMAPPED_BASE;
-- start_addr = addr;
-+ if (start_addr != mm->mmap_base) {
-+ start_addr = addr = mm->mmap_base;
- mm->cached_hole_size = 0;
- goto full_search;
- }
-@@ -1331,10 +1491,16 @@ full_search:
-
- void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
- {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
-+ return;
-+#endif
-+
- /*
- * Is this a new hole at the lowest possible address?
- */
-- if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache) {
-+ if (addr >= mm->mmap_base && addr < mm->free_area_cache) {
- mm->free_area_cache = addr;
- mm->cached_hole_size = ~0UL;
- }
-@@ -1352,7 +1518,7 @@ arch_get_unmapped_area_topdown(struct fi
- {
- struct vm_area_struct *vma;
- struct mm_struct *mm = current->mm;
-- unsigned long addr = addr0;
-+ unsigned long base = mm->mmap_base, addr = addr0;
-
- /* requested length too big for entire address space */
- if (len > TASK_SIZE)
-@@ -1361,6 +1527,10 @@ arch_get_unmapped_area_topdown(struct fi
- if (flags & MAP_FIXED)
- return addr;
-
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
-+#endif
-+
- /* requesting a specific address */
- if (addr) {
- addr = PAGE_ALIGN(addr);
-@@ -1418,13 +1588,21 @@ bottomup:
- * can happen with large stack limits and large mmap()
- * allocations.
- */
-+ mm->mmap_base = TASK_UNMAPPED_BASE;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
-+ mm->free_area_cache = mm->mmap_base;
- mm->cached_hole_size = ~0UL;
-- mm->free_area_cache = TASK_UNMAPPED_BASE;
- addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
- /*
- * Restore the topdown base:
- */
-- mm->free_area_cache = mm->mmap_base;
-+ mm->mmap_base = base;
-+ mm->free_area_cache = base;
- mm->cached_hole_size = ~0UL;
-
- return addr;
-@@ -1433,6 +1611,12 @@ bottomup:
-
- void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
- {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
-+ return;
-+#endif
-+
- /*
- * Is this a new hole at the highest possible address?
- */
-@@ -1440,8 +1624,10 @@ void arch_unmap_area_topdown(struct mm_s
- mm->free_area_cache = addr;
-
- /* dont allow allocations above current base */
-- if (mm->free_area_cache > mm->mmap_base)
-+ if (mm->free_area_cache > mm->mmap_base) {
- mm->free_area_cache = mm->mmap_base;
-+ mm->cached_hole_size = ~0UL;
-+ }
- }
-
- unsigned long
-@@ -1541,6 +1727,27 @@ out:
- return prev ? prev->vm_next : vma;
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
-+{
-+ struct vm_area_struct *vma_m;
-+
-+ BUG_ON(!vma || vma->vm_start >= vma->vm_end);
-+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
-+ BUG_ON(vma->vm_mirror);
-+ return NULL;
-+ }
-+ BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
-+ vma_m = vma->vm_mirror;
-+ BUG_ON(!vma_m || vma_m->vm_mirror != vma);
-+ BUG_ON(vma->vm_file != vma_m->vm_file);
-+ BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
-+ BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff || vma->anon_vma != vma_m->anon_vma);
-+ BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
-+ return vma_m;
-+}
-+#endif
-+
- /*
- * Verify that the stack growth is acceptable and
- * update accounting. This is shared with both the
-@@ -1557,6 +1764,7 @@ static int acct_stack_growth(struct vm_a
- return -ENOMEM;
-
- /* Stack limit test */
-+ gr_learn_resource(current, RLIMIT_STACK, size, 1);
- if (size > rlim[RLIMIT_STACK].rlim_cur)
- return -ENOMEM;
-
-@@ -1566,6 +1774,7 @@ static int acct_stack_growth(struct vm_a
- unsigned long limit;
- locked = mm->locked_vm + grow;
- limit = rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT;
-+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
- if (locked > limit && !capable(CAP_IPC_LOCK))
- return -ENOMEM;
- }
-@@ -1580,7 +1789,7 @@ static int acct_stack_growth(struct vm_a
- * Overcommit.. This must be the final test, as it will
- * update security statistics.
- */
-- if (security_vm_enough_memory(grow))
-+ if (security_vm_enough_memory_mm(mm, grow))
- return -ENOMEM;
-
- /* Ok, everything looks good - let it rip */
-@@ -1601,35 +1810,40 @@ static
- #endif
- int expand_upwards(struct vm_area_struct *vma, unsigned long address)
- {
-- int error;
-+ int error, locknext;
-
- if (!(vma->vm_flags & VM_GROWSUP))
- return -EFAULT;
-
-+ /* Also guard against wrapping around to address 0. */
-+ if (address < PAGE_ALIGN(address+1))
-+ address = PAGE_ALIGN(address+1);
-+ else
-+ return -ENOMEM;
-+
- /*
- * We must make sure the anon_vma is allocated
- * so that the anon_vma locking is not a noop.
- */
- if (unlikely(anon_vma_prepare(vma)))
- return -ENOMEM;
-+ locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
-+ if (locknext && unlikely(anon_vma_prepare(vma->vm_next)))
-+ return -ENOMEM;
- anon_vma_lock(vma);
-+ if (locknext)
-+ anon_vma_lock(vma->vm_next);
-
- /*
- * vma->vm_start/vm_end cannot change under us because the caller
- * is required to hold the mmap_sem in read mode. We need the
-- * anon_vma lock to serialize against concurrent expand_stacks.
-- * Also guard against wrapping around to address 0.
-+ * anon_vma locks to serialize against concurrent expand_stacks
-+ * and expand_upwards.
- */
-- if (address < PAGE_ALIGN(address+4))
-- address = PAGE_ALIGN(address+4);
-- else {
-- anon_vma_unlock(vma);
-- return -ENOMEM;
-- }
- error = 0;
-
- /* Somebody else might have raced and expanded it already */
-- if (address > vma->vm_end) {
-+ if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
- unsigned long size, grow;
-
- size = address - vma->vm_start;
-@@ -1639,6 +1853,8 @@ int expand_upwards(struct vm_area_struct
- if (!error)
- vma->vm_end = address;
- }
-+ if (locknext)
-+ anon_vma_unlock(vma->vm_next);
- anon_vma_unlock(vma);
- return error;
- }
-@@ -1650,7 +1866,8 @@ int expand_upwards(struct vm_area_struct
- static int expand_downwards(struct vm_area_struct *vma,
- unsigned long address)
- {
-- int error;
-+ int error, lockprev = 0;
-+ struct vm_area_struct *prev = NULL;
-
- /*
- * We must make sure the anon_vma is allocated
-@@ -1664,6 +1881,15 @@ static int expand_downwards(struct vm_ar
- if (error)
- return error;
-
-+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
-+ find_vma_prev(vma->vm_mm, address, &prev);
-+ lockprev = prev && (prev->vm_flags & VM_GROWSUP);
-+#endif
-+ if (lockprev && unlikely(anon_vma_prepare(prev)))
-+ return -ENOMEM;
-+ if (lockprev)
-+ anon_vma_lock(prev);
-+
- anon_vma_lock(vma);
-
- /*
-@@ -1673,9 +1899,15 @@ static int expand_downwards(struct vm_ar
- */
-
- /* Somebody else might have raced and expanded it already */
-- if (address < vma->vm_start) {
-+ if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
- unsigned long size, grow;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m;
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+#endif
-+
- size = vma->vm_end - address;
- grow = (vma->vm_start - address) >> PAGE_SHIFT;
-
-@@ -1683,9 +1915,20 @@ static int expand_downwards(struct vm_ar
- if (!error) {
- vma->vm_start = address;
- vma->vm_pgoff -= grow;
-+ track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma_m) {
-+ vma_m->vm_start -= grow << PAGE_SHIFT;
-+ vma_m->vm_pgoff -= grow;
-+ }
-+#endif
-+
- }
- }
- anon_vma_unlock(vma);
-+ if (lockprev)
-+ anon_vma_unlock(prev);
- return error;
- }
-
-@@ -1761,6 +2004,13 @@ static void remove_vma_list(struct mm_st
- do {
- long nrpages = vma_pages(vma);
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
-+ vma = remove_vma(vma);
-+ continue;
-+ }
-+#endif
-+
- mm->total_vm -= nrpages;
- vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
- vma = remove_vma(vma);
-@@ -1805,6 +2055,16 @@ detach_vmas_to_be_unmapped(struct mm_str
-
- insertion_point = (prev ? &prev->vm_next : &mm->mmap);
- do {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma->vm_mirror) {
-+ BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
-+ vma->vm_mirror->vm_mirror = NULL;
-+ vma->vm_mirror->vm_flags &= ~VM_EXEC;
-+ vma->vm_mirror = NULL;
-+ }
-+#endif
-+
- rb_erase(&vma->vm_rb, &mm->mm_rb);
- mm->map_count--;
- tail_vma = vma;
-@@ -1824,6 +2084,108 @@ detach_vmas_to_be_unmapped(struct mm_str
- * Split a vma into two pieces at address 'addr', a new vma is allocated
- * either for the first part or the tail.
- */
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+int split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
-+ unsigned long addr, int new_below)
-+{
-+ struct mempolicy *pol;
-+ struct vm_area_struct *new, *vma_m, *new_m = NULL;
-+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
-+
-+ if (is_vm_hugetlb_page(vma) && (addr & ~HPAGE_MASK))
-+ return -EINVAL;
-+
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (vma_m) {
-+ BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
-+ if (mm->map_count >= sysctl_max_map_count-1)
-+ return -ENOMEM;
-+ } else if (mm->map_count >= sysctl_max_map_count)
-+ return -ENOMEM;
-+
-+ new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
-+ if (!new)
-+ return -ENOMEM;
-+
-+ if (vma_m) {
-+ new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
-+ if (!new_m) {
-+ kmem_cache_free(vm_area_cachep, new);
-+ return -ENOMEM;
-+ }
-+ }
-+
-+ /* most fields are the same, copy all, and then fixup */
-+ *new = *vma;
-+
-+ if (new_below)
-+ new->vm_end = addr;
-+ else {
-+ new->vm_start = addr;
-+ new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
-+ }
-+
-+ if (vma_m) {
-+ *new_m = *vma_m;
-+ new_m->vm_mirror = new;
-+ new->vm_mirror = new_m;
-+
-+ if (new_below)
-+ new_m->vm_end = addr_m;
-+ else {
-+ new_m->vm_start = addr_m;
-+ new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
-+ }
-+ }
-+
-+ pol = mpol_dup(vma_policy(vma));
-+ if (IS_ERR(pol)) {
-+ if (new_m)
-+ kmem_cache_free(vm_area_cachep, new_m);
-+ kmem_cache_free(vm_area_cachep, new);
-+ return PTR_ERR(pol);
-+ }
-+ vma_set_policy(new, pol);
-+
-+ if (new->vm_file) {
-+ get_file(new->vm_file);
-+ if (vma->vm_flags & VM_EXECUTABLE)
-+ added_exe_file_vma(mm);
-+ }
-+
-+ if (new->vm_ops && new->vm_ops->open)
-+ new->vm_ops->open(new);
-+
-+ if (new_below)
-+ vma_adjust(vma, addr, vma->vm_end, vma->vm_pgoff +
-+ ((addr - new->vm_start) >> PAGE_SHIFT), new);
-+ else
-+ vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
-+
-+ if (vma_m) {
-+ mpol_get(pol);
-+ vma_set_policy(new_m, pol);
-+
-+ if (new_m->vm_file) {
-+ get_file(new_m->vm_file);
-+ if (vma_m->vm_flags & VM_EXECUTABLE)
-+ added_exe_file_vma(mm);
-+ }
-+
-+ if (new_m->vm_ops && new_m->vm_ops->open)
-+ new_m->vm_ops->open(new_m);
-+
-+ if (new_below)
-+ vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
-+ ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
-+ else
-+ vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
-+ }
-+
-+ return 0;
-+}
-+#else
- int split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
- unsigned long addr, int new_below)
- {
-@@ -1875,17 +2237,37 @@ int split_vma(struct mm_struct * mm, str
-
- return 0;
- }
-+#endif
-
- /* Munmap is split into 2 main parts -- this part which finds
- * what needs doing, and the areas themselves, which do the
- * work. This now handles partial unmappings.
- * Jeremy Fitzhardinge <jeremy@goop.org>
- */
-+#ifdef CONFIG_PAX_SEGMEXEC
- int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
- {
-+ int ret = __do_munmap(mm, start, len);
-+ if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
-+ return ret;
-+
-+ return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
-+}
-+
-+int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
-+#else
-+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
-+#endif
-+{
- unsigned long end;
- struct vm_area_struct *vma, *prev, *last;
-
-+ /*
-+ * mm->mmap_sem is required to protect against another thread
-+ * changing the mappings in case we sleep.
-+ */
-+ verify_mm_writelocked(mm);
-+
- if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
- return -EINVAL;
-
-@@ -1949,6 +2331,8 @@ int do_munmap(struct mm_struct *mm, unsi
- /* Fix up all other VM information */
- remove_vma_list(mm, vma);
-
-+ track_exec_limit(mm, start, end, 0UL);
-+
- return 0;
- }
-
-@@ -1961,22 +2345,18 @@ SYSCALL_DEFINE2(munmap, unsigned long, a
-
- profile_munmap(addr);
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
-+ (len > SEGMEXEC_TASK_SIZE || addr > SEGMEXEC_TASK_SIZE-len))
-+ return -EINVAL;
-+#endif
-+
- down_write(&mm->mmap_sem);
- ret = do_munmap(mm, addr, len);
- up_write(&mm->mmap_sem);
- return ret;
- }
-
--static inline void verify_mm_writelocked(struct mm_struct *mm)
--{
--#ifdef CONFIG_DEBUG_VM
-- if (unlikely(down_read_trylock(&mm->mmap_sem))) {
-- WARN_ON(1);
-- up_read(&mm->mmap_sem);
-- }
--#endif
--}
--
- /*
- * this is really a simplified "do_mmap". it only handles
- * anonymous maps. eventually we may be able to do some
-@@ -1990,6 +2370,11 @@ unsigned long do_brk(unsigned long addr,
- struct rb_node ** rb_link, * rb_parent;
- pgoff_t pgoff = addr >> PAGE_SHIFT;
- int error;
-+ unsigned long charged;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m = NULL;
-+#endif
-
- len = PAGE_ALIGN(len);
- if (!len)
-@@ -2007,19 +2392,34 @@ unsigned long do_brk(unsigned long addr,
-
- flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
-
-+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
-+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
-+ flags &= ~VM_EXEC;
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (mm->pax_flags & MF_PAX_MPROTECT)
-+ flags &= ~VM_MAYEXEC;
-+#endif
-+
-+ }
-+#endif
-+
- error = arch_mmap_check(addr, len, flags);
- if (error)
- return error;
-
-+ charged = len >> PAGE_SHIFT;
-+
- /*
- * mlock MCL_FUTURE?
- */
- if (mm->def_flags & VM_LOCKED) {
- unsigned long locked, lock_limit;
-- locked = len >> PAGE_SHIFT;
-+ locked = charged;
- locked += mm->locked_vm;
- lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
- lock_limit >>= PAGE_SHIFT;
-+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
- if (locked > lock_limit && !capable(CAP_IPC_LOCK))
- return -EAGAIN;
- }
-@@ -2033,22 +2433,22 @@ unsigned long do_brk(unsigned long addr,
- /*
- * Clear old maps. this also does some error checking for us
- */
-- munmap_back:
- vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
- if (vma && vma->vm_start < addr + len) {
- if (do_munmap(mm, addr, len))
- return -ENOMEM;
-- goto munmap_back;
-+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
-+ BUG_ON(vma && vma->vm_start < addr + len);
- }
-
- /* Check against address space limits *after* clearing old maps... */
-- if (!may_expand_vm(mm, len >> PAGE_SHIFT))
-+ if (!may_expand_vm(mm, charged))
- return -ENOMEM;
-
- if (mm->map_count > sysctl_max_map_count)
- return -ENOMEM;
-
-- if (security_vm_enough_memory(len >> PAGE_SHIFT))
-+ if (security_vm_enough_memory(charged))
- return -ENOMEM;
-
- /* Can we just expand an old private anonymous mapping? */
-@@ -2062,10 +2462,21 @@ unsigned long do_brk(unsigned long addr,
- */
- vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
- if (!vma) {
-- vm_unacct_memory(len >> PAGE_SHIFT);
-+ vm_unacct_memory(charged);
- return -ENOMEM;
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (flags & VM_EXEC)) {
-+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+ if (!vma_m) {
-+ kmem_cache_free(vm_area_cachep, vma);
-+ vm_unacct_memory(charged);
-+ return -ENOMEM;
-+ }
-+ }
-+#endif
-+
- vma->vm_mm = mm;
- vma->vm_start = addr;
- vma->vm_end = addr + len;
-@@ -2074,11 +2485,12 @@ unsigned long do_brk(unsigned long addr,
- vma->vm_page_prot = vm_get_page_prot(flags);
- vma_link(mm, vma, prev, rb_link, rb_parent);
- out:
-- mm->total_vm += len >> PAGE_SHIFT;
-+ mm->total_vm += charged;
- if (flags & VM_LOCKED) {
- if (!mlock_vma_pages_range(vma, addr, addr + len))
-- mm->locked_vm += (len >> PAGE_SHIFT);
-+ mm->locked_vm += charged;
- }
-+ track_exec_limit(mm, addr, addr + len, flags);
- return addr;
- }
-
-@@ -2124,8 +2536,10 @@ void exit_mmap(struct mm_struct *mm)
- * Walk the list again, actually closing and freeing it,
- * with preemption enabled, without holding any MM locks.
- */
-- while (vma)
-+ while (vma) {
-+ vma->vm_mirror = NULL;
- vma = remove_vma(vma);
-+ }
-
- BUG_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT);
- }
-@@ -2139,6 +2553,10 @@ int insert_vm_struct(struct mm_struct *
- struct vm_area_struct * __vma, * prev;
- struct rb_node ** rb_link, * rb_parent;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m = NULL;
-+#endif
-+
- /*
- * The vm_pgoff of a purely anonymous vma should be irrelevant
- * until its first write fault, when page's anon_vma and index
-@@ -2161,7 +2579,22 @@ int insert_vm_struct(struct mm_struct *
- if ((vma->vm_flags & VM_ACCOUNT) &&
- security_vm_enough_memory_mm(mm, vma_pages(vma)))
- return -ENOMEM;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
-+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+ if (!vma_m)
-+ return -ENOMEM;
-+ }
-+#endif
-+
- vma_link(mm, vma, prev, rb_link, rb_parent);
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (vma_m)
-+ pax_mirror_vma(vma_m, vma);
-+#endif
-+
- return 0;
- }
-
-@@ -2179,6 +2612,8 @@ struct vm_area_struct *copy_vma(struct v
- struct rb_node **rb_link, *rb_parent;
- struct mempolicy *pol;
-
-+ BUG_ON(vma->vm_mirror);
-+
- /*
- * If anonymous vma has not yet been faulted, update new pgoff
- * to match new location, to increase its chance of merging.
-@@ -2222,6 +2657,35 @@ struct vm_area_struct *copy_vma(struct v
- return new_vma;
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+void pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
-+{
-+ struct vm_area_struct *prev_m;
-+ struct rb_node **rb_link_m, *rb_parent_m;
-+ struct mempolicy *pol_m;
-+
-+ BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
-+ BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
-+ BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
-+ *vma_m = *vma;
-+ pol_m = vma_policy(vma_m);
-+ mpol_get(pol_m);
-+ vma_set_policy(vma_m, pol_m);
-+ vma_m->vm_start += SEGMEXEC_TASK_SIZE;
-+ vma_m->vm_end += SEGMEXEC_TASK_SIZE;
-+ vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
-+ vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
-+ if (vma_m->vm_file)
-+ get_file(vma_m->vm_file);
-+ if (vma_m->vm_ops && vma_m->vm_ops->open)
-+ vma_m->vm_ops->open(vma_m);
-+ find_vma_prepare(vma->vm_mm, vma_m->vm_start, &prev_m, &rb_link_m, &rb_parent_m);
-+ vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
-+ vma_m->vm_mirror = vma;
-+ vma->vm_mirror = vma_m;
-+}
-+#endif
-+
- /*
- * Return true if the calling process may expand its vm space by the passed
- * number of pages
-@@ -2232,7 +2696,7 @@ int may_expand_vm(struct mm_struct *mm,
- unsigned long lim;
-
- lim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT;
--
-+ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
- if (cur + npages > lim)
- return 0;
- return 1;
-@@ -2301,6 +2765,15 @@ int install_special_mapping(struct mm_st
- vma->vm_start = addr;
- vma->vm_end = addr + len;
-
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (mm->pax_flags & MF_PAX_MPROTECT) {
-+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
-+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
-+ else
-+ vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
-+ }
-+#endif
-+
- vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND;
- vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
-
-diff -urNp linux-2.6.28.7/mm/mprotect.c linux-2.6.28.7/mm/mprotect.c
---- linux-2.6.28.7/mm/mprotect.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/mprotect.c 2009-02-21 09:37:50.000000000 -0500
-@@ -22,10 +22,16 @@
- #include <linux/swap.h>
- #include <linux/swapops.h>
- #include <linux/mmu_notifier.h>
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+#include <linux/elf.h>
-+#endif
-+
- #include <asm/uaccess.h>
- #include <asm/pgtable.h>
- #include <asm/cacheflush.h>
- #include <asm/tlbflush.h>
-+#include <asm/mmu_context.h>
-
- #ifndef pgprot_modify
- static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
-@@ -133,6 +139,48 @@ static void change_protection(struct vm_
- flush_tlb_range(vma, start, end);
- }
-
-+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
-+/* called while holding the mmap semaphor for writing except stack expansion */
-+void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
-+{
-+ unsigned long oldlimit, newlimit = 0UL;
-+
-+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || nx_enabled)
-+ return;
-+
-+ spin_lock(&mm->page_table_lock);
-+ oldlimit = mm->context.user_cs_limit;
-+ if ((prot & VM_EXEC) && oldlimit < end)
-+ /* USER_CS limit moved up */
-+ newlimit = end;
-+ else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
-+ /* USER_CS limit moved down */
-+ newlimit = start;
-+
-+ if (newlimit) {
-+ mm->context.user_cs_limit = newlimit;
-+
-+#ifdef CONFIG_SMP
-+ wmb();
-+ cpus_clear(mm->context.cpu_user_cs_mask);
-+ cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask);
-+#endif
-+
-+ set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
-+ }
-+ spin_unlock(&mm->page_table_lock);
-+ if (newlimit == end) {
-+ struct vm_area_struct *vma = find_vma(mm, oldlimit);
-+
-+ for (; vma && vma->vm_start < end; vma = vma->vm_next)
-+ if (is_vm_hugetlb_page(vma))
-+ hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
-+ else
-+ change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma));
-+ }
-+}
-+#endif
-+
- int
- mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
- unsigned long start, unsigned long end, unsigned long newflags)
-@@ -145,6 +193,14 @@ mprotect_fixup(struct vm_area_struct *vm
- int error;
- int dirty_accountable = 0;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m = NULL;
-+ unsigned long start_m, end_m;
-+
-+ start_m = start + SEGMEXEC_TASK_SIZE;
-+ end_m = end + SEGMEXEC_TASK_SIZE;
-+#endif
-+
- if (newflags == oldflags) {
- *pprev = vma;
- return 0;
-@@ -165,6 +221,38 @@ mprotect_fixup(struct vm_area_struct *vm
- }
- }
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
-+ if (start != vma->vm_start) {
-+ error = split_vma(mm, vma, start, 1);
-+ if (error)
-+ goto fail;
-+ BUG_ON(!*pprev || (*pprev)->vm_next == vma);
-+ *pprev = (*pprev)->vm_next;
-+ }
-+
-+ if (end != vma->vm_end) {
-+ error = split_vma(mm, vma, end, 0);
-+ if (error)
-+ goto fail;
-+ }
-+
-+ if (pax_find_mirror_vma(vma)) {
-+ error = __do_munmap(mm, start_m, end_m - start_m);
-+ if (error)
-+ goto fail;
-+ } else {
-+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-+ if (!vma_m) {
-+ error = -ENOMEM;
-+ goto fail;
-+ }
-+ vma->vm_flags = newflags;
-+ pax_mirror_vma(vma_m, vma);
-+ }
-+ }
-+#endif
-+
- /*
- * First try to merge with previous and/or next vma.
- */
-@@ -196,8 +284,14 @@ success:
- * held in write mode.
- */
- vma->vm_flags = newflags;
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (current->binfmt && current->binfmt->handle_mprotect)
-+ current->binfmt->handle_mprotect(vma, newflags);
-+#endif
-+
- vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
-- vm_get_page_prot(newflags));
-+ vm_get_page_prot(vma->vm_flags));
-
- if (vma_wants_writenotify(vma)) {
- vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
-@@ -238,6 +332,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
- end = start + len;
- if (end <= start)
- return -ENOMEM;
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
-+ if (end > SEGMEXEC_TASK_SIZE)
-+ return -EINVAL;
-+ } else
-+#endif
-+
-+ if (end > TASK_SIZE)
-+ return -EINVAL;
-+
- if (!arch_validate_prot(prot))
- return -EINVAL;
-
-@@ -245,7 +350,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
- /*
- * Does the application expect PROT_READ to imply PROT_EXEC:
- */
-- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
-+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
- prot |= PROT_EXEC;
-
- vm_flags = calc_vm_prot_bits(prot);
-@@ -277,6 +382,16 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
- if (start > vma->vm_start)
- prev = vma;
-
-+ if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
-+ error = -EACCES;
-+ goto out;
-+ }
-+
-+#ifdef CONFIG_PAX_MPROTECT
-+ if (current->binfmt && current->binfmt->handle_mprotect)
-+ current->binfmt->handle_mprotect(vma, vm_flags);
-+#endif
-+
- for (nstart = start ; ; ) {
- unsigned long newflags;
-
-@@ -300,6 +415,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
- error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
- if (error)
- goto out;
-+
-+ track_exec_limit(current->mm, nstart, tmp, vm_flags);
-+
- nstart = tmp;
-
- if (nstart < prev->vm_end)
-diff -urNp linux-2.6.28.7/mm/mremap.c linux-2.6.28.7/mm/mremap.c
---- linux-2.6.28.7/mm/mremap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/mremap.c 2009-02-21 09:37:50.000000000 -0500
-@@ -113,6 +113,12 @@ static void move_ptes(struct vm_area_str
- continue;
- pte = ptep_clear_flush(vma, old_addr, old_pte);
- pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
-+
-+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
-+ if (!nx_enabled && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
-+ pte = pte_exprotect(pte);
-+#endif
-+
- set_pte_at(mm, new_addr, new_pte, pte);
- }
-
-@@ -262,6 +268,7 @@ unsigned long do_mremap(unsigned long ad
- struct vm_area_struct *vma;
- unsigned long ret = -EINVAL;
- unsigned long charged = 0;
-+ unsigned long pax_task_size = TASK_SIZE;
-
- if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
- goto out;
-@@ -280,6 +287,15 @@ unsigned long do_mremap(unsigned long ad
- if (!new_len)
- goto out;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
-+ pax_task_size = SEGMEXEC_TASK_SIZE;
-+#endif
-+
-+ if (new_len > pax_task_size || addr > pax_task_size-new_len ||
-+ old_len > pax_task_size || addr > pax_task_size-old_len)
-+ goto out;
-+
- /* new_addr is only valid if MREMAP_FIXED is specified */
- if (flags & MREMAP_FIXED) {
- if (new_addr & ~PAGE_MASK)
-@@ -287,16 +303,13 @@ unsigned long do_mremap(unsigned long ad
- if (!(flags & MREMAP_MAYMOVE))
- goto out;
-
-- if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
-+ if (new_addr > pax_task_size - new_len)
- goto out;
-
- /* Check if the location we're moving into overlaps the
- * old location at all, and fail if it does.
- */
-- if ((new_addr <= addr) && (new_addr+new_len) > addr)
-- goto out;
--
-- if ((addr <= new_addr) && (addr+old_len) > new_addr)
-+ if (addr + old_len > new_addr && new_addr + new_len > addr)
- goto out;
-
- ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
-@@ -334,6 +347,14 @@ unsigned long do_mremap(unsigned long ad
- ret = -EINVAL;
- goto out;
- }
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ if (pax_find_mirror_vma(vma)) {
-+ ret = -EINVAL;
-+ goto out;
-+ }
-+#endif
-+
- /* We can't remap across vm area boundaries */
- if (old_len > vma->vm_end - addr)
- goto out;
-@@ -367,7 +388,7 @@ unsigned long do_mremap(unsigned long ad
- if (old_len == vma->vm_end - addr &&
- !((flags & MREMAP_FIXED) && (addr != new_addr)) &&
- (old_len != new_len || !(flags & MREMAP_MAYMOVE))) {
-- unsigned long max_addr = TASK_SIZE;
-+ unsigned long max_addr = pax_task_size;
- if (vma->vm_next)
- max_addr = vma->vm_next->vm_start;
- /* can we just expand the current mapping? */
-@@ -385,6 +406,7 @@ unsigned long do_mremap(unsigned long ad
- addr + new_len);
- }
- ret = addr;
-+ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
- goto out;
- }
- }
-@@ -395,8 +417,8 @@ unsigned long do_mremap(unsigned long ad
- */
- ret = -ENOMEM;
- if (flags & MREMAP_MAYMOVE) {
-+ unsigned long map_flags = 0;
- if (!(flags & MREMAP_FIXED)) {
-- unsigned long map_flags = 0;
- if (vma->vm_flags & VM_MAYSHARE)
- map_flags |= MAP_SHARED;
-
-@@ -411,7 +433,12 @@ unsigned long do_mremap(unsigned long ad
- if (ret)
- goto out;
- }
-+ map_flags = vma->vm_flags;
- ret = move_vma(vma, addr, old_len, new_len, new_addr);
-+ if (!(ret & ~PAGE_MASK)) {
-+ track_exec_limit(current->mm, addr, addr + old_len, 0UL);
-+ track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
-+ }
- }
- out:
- if (ret & ~PAGE_MASK)
-diff -urNp linux-2.6.28.7/mm/nommu.c linux-2.6.28.7/mm/nommu.c
---- linux-2.6.28.7/mm/nommu.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/nommu.c 2009-02-21 09:37:50.000000000 -0500
-@@ -459,15 +459,6 @@ struct vm_area_struct *find_vma(struct m
- }
- EXPORT_SYMBOL(find_vma);
-
--/*
-- * find a VMA
-- * - we don't extend stack VMAs under NOMMU conditions
-- */
--struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
--{
-- return find_vma(mm, addr);
--}
--
- int expand_stack(struct vm_area_struct *vma, unsigned long address)
- {
- return -ENOMEM;
-diff -urNp linux-2.6.28.7/mm/page_alloc.c linux-2.6.28.7/mm/page_alloc.c
---- linux-2.6.28.7/mm/page_alloc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/page_alloc.c 2009-02-21 09:39:27.000000000 -0500
-@@ -525,6 +525,10 @@ static void __free_pages_ok(struct page
- int i;
- int reserved = 0;
-
-+#ifdef CONFIG_PAX_MEMORY_SANITIZE
-+ unsigned long index = 1UL << order;
-+#endif
-+
- for (i = 0 ; i < (1 << order) ; ++i)
- reserved += free_pages_check(page + i);
- if (reserved)
-@@ -535,6 +539,12 @@ static void __free_pages_ok(struct page
- debug_check_no_obj_freed(page_address(page),
- PAGE_SIZE << order);
- }
-+
-+#ifdef CONFIG_PAX_MEMORY_SANITIZE
-+ for (; index; --index)
-+ sanitize_highpage(page + index - 1);
-+#endif
-+
- arch_free_page(page, order);
- kernel_map_pages(page, 1 << order, 0);
-
-@@ -635,8 +645,10 @@ static int prep_new_page(struct page *pa
- arch_alloc_page(page, order);
- kernel_map_pages(page, 1 << order, 1);
-
-+#ifndef CONFIG_PAX_MEMORY_SANITIZE
- if (gfp_flags & __GFP_ZERO)
- prep_zero_page(page, order, gfp_flags);
-+#endif
-
- if (order && (gfp_flags & __GFP_COMP))
- prep_compound_page(page, order);
-@@ -997,6 +1009,11 @@ static void free_hot_cold_page(struct pa
- debug_check_no_locks_freed(page_address(page), PAGE_SIZE);
- debug_check_no_obj_freed(page_address(page), PAGE_SIZE);
- }
-+
-+#ifdef CONFIG_PAX_MEMORY_SANITIZE
-+ sanitize_highpage(page);
-+#endif
-+
- arch_free_page(page, 0);
- kernel_map_pages(page, 1, 0);
-
-diff -urNp linux-2.6.28.7/mm/rmap.c linux-2.6.28.7/mm/rmap.c
---- linux-2.6.28.7/mm/rmap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/rmap.c 2009-02-21 09:37:50.000000000 -0500
-@@ -103,6 +103,10 @@ int anon_vma_prepare(struct vm_area_stru
- struct mm_struct *mm = vma->vm_mm;
- struct anon_vma *allocated;
-
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ struct vm_area_struct *vma_m;
-+#endif
-+
- anon_vma = find_mergeable_anon_vma(vma);
- allocated = NULL;
- if (!anon_vma) {
-@@ -116,6 +120,15 @@ int anon_vma_prepare(struct vm_area_stru
- /* page_table_lock to protect against threads */
- spin_lock(&mm->page_table_lock);
- if (likely(!vma->anon_vma)) {
-+
-+#ifdef CONFIG_PAX_SEGMEXEC
-+ vma_m = pax_find_mirror_vma(vma);
-+ if (vma_m) {
-+ vma_m->anon_vma = anon_vma;
-+ __anon_vma_link(vma_m);
-+ }
-+#endif
-+
- vma->anon_vma = anon_vma;
- list_add_tail(&vma->anon_vma_node, &anon_vma->head);
- allocated = NULL;
-diff -urNp linux-2.6.28.7/mm/shmem.c linux-2.6.28.7/mm/shmem.c
---- linux-2.6.28.7/mm/shmem.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/shmem.c 2009-02-21 09:37:50.000000000 -0500
-@@ -2486,7 +2486,7 @@ static struct file_system_type tmpfs_fs_
- .get_sb = shmem_get_sb,
- .kill_sb = kill_litter_super,
- };
--static struct vfsmount *shm_mnt;
-+struct vfsmount *shm_mnt;
-
- static int __init init_tmpfs(void)
- {
-diff -urNp linux-2.6.28.7/mm/slab.c linux-2.6.28.7/mm/slab.c
---- linux-2.6.28.7/mm/slab.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/slab.c 2009-02-21 09:37:50.000000000 -0500
-@@ -305,7 +305,7 @@ struct kmem_list3 {
- * Need this for bootstrapping a per node allocator.
- */
- #define NUM_INIT_LISTS (3 * MAX_NUMNODES)
--struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS];
-+struct kmem_list3 initkmem_list3[NUM_INIT_LISTS];
- #define CACHE_CACHE 0
- #define SIZE_AC MAX_NUMNODES
- #define SIZE_L3 (2 * MAX_NUMNODES)
-@@ -654,14 +654,14 @@ struct cache_names {
- static struct cache_names __initdata cache_names[] = {
- #define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)" },
- #include <linux/kmalloc_sizes.h>
-- {NULL,}
-+ {NULL, NULL}
- #undef CACHE
- };
-
- static struct arraycache_init initarray_cache __initdata =
-- { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} };
-+ { {0, BOOT_CPUCACHE_ENTRIES, 1, 0}, {NULL} };
- static struct arraycache_init initarray_generic =
-- { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} };
-+ { {0, BOOT_CPUCACHE_ENTRIES, 1, 0}, {NULL} };
-
- /* internal cache of cache description objs */
- static struct kmem_cache cache_cache = {
-@@ -2997,7 +2997,7 @@ retry:
- * there must be at least one object available for
- * allocation.
- */
-- BUG_ON(slabp->inuse < 0 || slabp->inuse >= cachep->num);
-+ BUG_ON(slabp->inuse >= cachep->num);
-
- while (slabp->inuse < cachep->num && batchcount--) {
- STATS_INC_ALLOCED(cachep);
-@@ -4491,10 +4491,12 @@ static const struct file_operations proc
-
- static int __init slab_proc_init(void)
- {
-+#if !defined(CONFIG_GRKERNSEC_PROC_ADD)
- proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
- #ifdef CONFIG_DEBUG_SLAB_LEAK
- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
- #endif
-+#endif
- return 0;
- }
- module_init(slab_proc_init);
-diff -urNp linux-2.6.28.7/mm/slub.c linux-2.6.28.7/mm/slub.c
---- linux-2.6.28.7/mm/slub.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/slub.c 2009-02-21 09:37:50.000000000 -0500
-@@ -4508,7 +4508,9 @@ static const struct file_operations proc
-
- static int __init slab_proc_init(void)
- {
-+#if !defined(CONFIG_GRKERNSEC_PROC_ADD)
- proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
-+#endif
- return 0;
- }
- module_init(slab_proc_init);
-diff -urNp linux-2.6.28.7/mm/tiny-shmem.c linux-2.6.28.7/mm/tiny-shmem.c
---- linux-2.6.28.7/mm/tiny-shmem.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/tiny-shmem.c 2009-02-21 09:37:50.000000000 -0500
-@@ -26,7 +26,7 @@ static struct file_system_type tmpfs_fs_
- .kill_sb = kill_litter_super,
- };
-
--static struct vfsmount *shm_mnt;
-+struct vfsmount *shm_mnt;
-
- static int __init init_tmpfs(void)
- {
-diff -urNp linux-2.6.28.7/mm/util.c linux-2.6.28.7/mm/util.c
---- linux-2.6.28.7/mm/util.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/util.c 2009-02-21 09:37:50.000000000 -0500
-@@ -167,6 +167,12 @@ EXPORT_SYMBOL(strndup_user);
- void arch_pick_mmap_layout(struct mm_struct *mm)
- {
- mm->mmap_base = TASK_UNMAPPED_BASE;
-+
-+#ifdef CONFIG_PAX_RANDMMAP
-+ if (mm->pax_flags & MF_PAX_RANDMMAP)
-+ mm->mmap_base += mm->delta_mmap;
-+#endif
-+
- mm->get_unmapped_area = arch_get_unmapped_area;
- mm->unmap_area = arch_unmap_area;
- }
-diff -urNp linux-2.6.28.7/mm/vmalloc.c linux-2.6.28.7/mm/vmalloc.c
---- linux-2.6.28.7/mm/vmalloc.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/mm/vmalloc.c 2009-02-21 09:37:50.000000000 -0500
-@@ -90,6 +90,11 @@ static int vmap_pte_range(pmd_t *pmd, un
- unsigned long end, pgprot_t prot, struct page **pages, int *nr)
- {
- pte_t *pte;
-+ int ret = -ENOMEM;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ unsigned long cr0;
-+#endif
-
- /*
- * nr is a running index into the array which helps higher level
-@@ -99,17 +104,33 @@ static int vmap_pte_range(pmd_t *pmd, un
- pte = pte_alloc_kernel(pmd, addr);
- if (!pte)
- return -ENOMEM;
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_open_kernel(cr0);
-+#endif
-+
- do {
- struct page *page = pages[*nr];
-
-- if (WARN_ON(!pte_none(*pte)))
-- return -EBUSY;
-- if (WARN_ON(!page))
-- return -ENOMEM;
-+ if (WARN_ON(!pte_none(*pte))) {
-+ ret = -EBUSY;
-+ goto out;
-+ }
-+ if (WARN_ON(!page)) {
-+ ret = -ENOMEM;
-+ goto out;
-+ }
- set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
- (*nr)++;
- } while (pte++, addr += PAGE_SIZE, addr != end);
-- return 0;
-+ ret = 0;
-+out:
-+
-+#ifdef CONFIG_PAX_KERNEXEC
-+ pax_close_kernel(cr0);
-+#endif
-+
-+ return ret;
- }
-
- static int vmap_pmd_range(pud_t *pud, unsigned long addr,
-@@ -1023,6 +1044,16 @@ static struct vm_struct *__get_vm_area_n
- unsigned long align = 1;
-
- BUG_ON(in_interrupt());
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+ if (flags & VM_KERNEXEC) {
-+ if (start != VMALLOC_START || end != VMALLOC_END)
-+ return NULL;
-+ start = (unsigned long)MODULES_VADDR;
-+ end = (unsigned long)MODULES_END;
-+ }
-+#endif
-+
- if (flags & VM_IOREMAP) {
- int bit = fls(size);
-
-@@ -1246,6 +1277,11 @@ void *vmap(struct page **pages, unsigned
- if (count > num_physpages)
- return NULL;
-
-+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+ if (!(pgprot_val(prot) & _PAGE_NX))
-+ flags |= VM_KERNEXEC;
-+#endif
-+
- area = get_vm_area_caller((count << PAGE_SHIFT), flags,
- __builtin_return_address(0));
- if (!area)
-@@ -1342,6 +1378,13 @@ static void *__vmalloc_node(unsigned lon
- if (!size || (size >> PAGE_SHIFT) > num_physpages)
- return NULL;
-
-+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+ if (!(pgprot_val(prot) & _PAGE_NX))
-+ area = __get_vm_area_node(size, VM_ALLOC | VM_KERNEXEC, VMALLOC_START, VMALLOC_END,
-+ node, gfp_mask, caller);
-+ else
-+#endif
-+
- area = __get_vm_area_node(size, VM_ALLOC, VMALLOC_START, VMALLOC_END,
- node, gfp_mask, caller);
-
-@@ -1431,7 +1474,7 @@ EXPORT_SYMBOL(vmalloc_node);
-
- void *vmalloc_exec(unsigned long size)
- {
-- return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
-+ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC);
- }
-
- #if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
-diff -urNp linux-2.6.28.7/net/bridge/br_stp_if.c linux-2.6.28.7/net/bridge/br_stp_if.c
---- linux-2.6.28.7/net/bridge/br_stp_if.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/bridge/br_stp_if.c 2009-02-21 09:37:50.000000000 -0500
-@@ -146,7 +146,7 @@ static void br_stp_stop(struct net_bridg
- char *envp[] = { NULL };
-
- if (br->stp_enabled == BR_USER_STP) {
-- r = call_usermodehelper(BR_STP_PROG, argv, envp, 1);
-+ r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC);
- printk(KERN_INFO "%s: userspace STP stopped, return code %d\n",
- br->dev->name, r);
-
-diff -urNp linux-2.6.28.7/net/core/flow.c linux-2.6.28.7/net/core/flow.c
---- linux-2.6.28.7/net/core/flow.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/core/flow.c 2009-02-21 09:37:50.000000000 -0500
-@@ -39,7 +39,7 @@ atomic_t flow_cache_genid = ATOMIC_INIT(
-
- static u32 flow_hash_shift;
- #define flow_hash_size (1 << flow_hash_shift)
--static DEFINE_PER_CPU(struct flow_cache_entry **, flow_tables) = { NULL };
-+static DEFINE_PER_CPU(struct flow_cache_entry **, flow_tables);
-
- #define flow_table(cpu) (per_cpu(flow_tables, cpu))
-
-@@ -52,7 +52,7 @@ struct flow_percpu_info {
- u32 hash_rnd;
- int count;
- };
--static DEFINE_PER_CPU(struct flow_percpu_info, flow_hash_info) = { 0 };
-+static DEFINE_PER_CPU(struct flow_percpu_info, flow_hash_info);
-
- #define flow_hash_rnd_recalc(cpu) \
- (per_cpu(flow_hash_info, cpu).hash_rnd_recalc)
-@@ -69,7 +69,7 @@ struct flow_flush_info {
- atomic_t cpuleft;
- struct completion completion;
- };
--static DEFINE_PER_CPU(struct tasklet_struct, flow_flush_tasklets) = { NULL };
-+static DEFINE_PER_CPU(struct tasklet_struct, flow_flush_tasklets);
-
- #define flow_flush_tasklet(cpu) (&per_cpu(flow_flush_tasklets, cpu))
-
-diff -urNp linux-2.6.28.7/net/dccp/ccids/ccid3.c linux-2.6.28.7/net/dccp/ccids/ccid3.c
---- linux-2.6.28.7/net/dccp/ccids/ccid3.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/dccp/ccids/ccid3.c 2009-02-21 09:37:50.000000000 -0500
-@@ -43,7 +43,7 @@
- static int ccid3_debug;
- #define ccid3_pr_debug(format, a...) DCCP_PR_DEBUG(ccid3_debug, format, ##a)
- #else
--#define ccid3_pr_debug(format, a...)
-+#define ccid3_pr_debug(format, a...) do {} while (0)
- #endif
-
- /*
-diff -urNp linux-2.6.28.7/net/dccp/dccp.h linux-2.6.28.7/net/dccp/dccp.h
---- linux-2.6.28.7/net/dccp/dccp.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/dccp/dccp.h 2009-02-21 09:37:50.000000000 -0500
-@@ -43,8 +43,8 @@ extern int dccp_debug;
- #define dccp_pr_debug(format, a...) DCCP_PR_DEBUG(dccp_debug, format, ##a)
- #define dccp_pr_debug_cat(format, a...) DCCP_PRINTK(dccp_debug, format, ##a)
- #else
--#define dccp_pr_debug(format, a...)
--#define dccp_pr_debug_cat(format, a...)
-+#define dccp_pr_debug(format, a...) do {} while (0)
-+#define dccp_pr_debug_cat(format, a...) do {} while (0)
- #endif
-
- extern struct inet_hashinfo dccp_hashinfo;
-diff -urNp linux-2.6.28.7/net/ipv4/inet_connection_sock.c linux-2.6.28.7/net/ipv4/inet_connection_sock.c
---- linux-2.6.28.7/net/ipv4/inet_connection_sock.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/ipv4/inet_connection_sock.c 2009-02-21 09:37:50.000000000 -0500
-@@ -15,6 +15,7 @@
-
- #include <linux/module.h>
- #include <linux/jhash.h>
-+#include <linux/security.h>
-
- #include <net/inet_connection_sock.h>
- #include <net/inet_hashtables.h>
-diff -urNp linux-2.6.28.7/net/ipv4/inet_hashtables.c linux-2.6.28.7/net/ipv4/inet_hashtables.c
---- linux-2.6.28.7/net/ipv4/inet_hashtables.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/ipv4/inet_hashtables.c 2009-02-21 09:37:50.000000000 -0500
-@@ -18,11 +18,14 @@
- #include <linux/sched.h>
- #include <linux/slab.h>
- #include <linux/wait.h>
-+#include <linux/security.h>
-
- #include <net/inet_connection_sock.h>
- #include <net/inet_hashtables.h>
- #include <net/ip.h>
-
-+extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet);
-+
- /*
- * Allocate and initialize a new local port bind bucket.
- * The bindhash mutex for snum's hash chain must be held here.
-@@ -487,6 +490,8 @@ ok:
- }
- spin_unlock(&head->lock);
-
-+ gr_update_task_in_ip_table(current, inet_sk(sk));
-+
- if (tw) {
- inet_twsk_deschedule(tw, death_row);
- inet_twsk_put(tw);
-diff -urNp linux-2.6.28.7/net/ipv4/netfilter/ipt_stealth.c linux-2.6.28.7/net/ipv4/netfilter/ipt_stealth.c
---- linux-2.6.28.7/net/ipv4/netfilter/ipt_stealth.c 1969-12-31 19:00:00.000000000 -0500
-+++ linux-2.6.28.7/net/ipv4/netfilter/ipt_stealth.c 2009-02-21 09:37:50.000000000 -0500
-@@ -0,0 +1,114 @@
-+/* Kernel module to add stealth support.
-+ *
-+ * Copyright (C) 2002-2006 Brad Spengler <spender@grsecurity.net>
-+ *
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/skbuff.h>
-+#include <linux/net.h>
-+#include <linux/sched.h>
-+#include <linux/inet.h>
-+#include <linux/stddef.h>
-+
-+#include <net/ip.h>
-+#include <net/sock.h>
-+#include <net/tcp.h>
-+#include <net/udp.h>
-+#include <net/route.h>
-+#include <net/inet_common.h>
-+
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+
-+MODULE_LICENSE("GPL");
-+
-+extern struct sock *udp_v4_lookup(struct net *net, u32 saddr, u16 sport, u32 daddr, u16 dport, int dif);
-+
-+static bool
-+match(const struct sk_buff *skb,
-+ const struct net_device *in,
-+ const struct net_device *out,
-+ const struct xt_match *match,
-+ const void *matchinfo,
-+ int offset,
-+ unsigned int protoff,
-+ bool *hotdrop)
-+{
-+ struct iphdr *ip = ip_hdr(skb);
-+ struct tcphdr th;
-+ struct udphdr uh;
-+ struct sock *sk = NULL;
-+
-+ if (!ip || offset) return false;
-+
-+ switch(ip->protocol) {
-+ case IPPROTO_TCP:
-+ if (skb_copy_bits(skb, (ip_hdr(skb))->ihl*4, &th, sizeof(th)) < 0) {
-+ *hotdrop = true;
-+ return false;
-+ }
-+ if (!(th.syn && !th.ack)) return false;
-+ sk = inet_lookup_listener(dev_net(skb->dev), &tcp_hashinfo, ip->daddr, th.dest, inet_iif(skb));
-+ break;
-+ case IPPROTO_UDP:
-+ if (skb_copy_bits(skb, (ip_hdr(skb))->ihl*4, &uh, sizeof(uh)) < 0) {
-+ *hotdrop = true;
-+ return false;
-+ }
-+ sk = udp_v4_lookup(dev_net(skb->dev), ip->saddr, uh.source, ip->daddr, uh.dest, skb->dev->ifindex);
-+ break;
-+ default:
-+ return false;
-+ }
-+
-+ if(!sk) // port is being listened on, match this
-+ return true;
-+ else {
-+ sock_put(sk);
-+ return false;
-+ }
-+}
-+
-+/* Called when user tries to insert an entry of this type. */
-+static bool
-+checkentry(const char *tablename,
-+ const void *nip,
-+ const struct xt_match *match,
-+ void *matchinfo,
-+ unsigned int hook_mask)
-+{
-+ const struct ipt_ip *ip = (const struct ipt_ip *)nip;
-+
-+ if(((ip->proto == IPPROTO_TCP && !(ip->invflags & IPT_INV_PROTO)) ||
-+ ((ip->proto == IPPROTO_UDP) && !(ip->invflags & IPT_INV_PROTO)))
-+ && (hook_mask & (1 << NF_INET_LOCAL_IN)))
-+ return true;
-+
-+ printk("stealth: Only works on TCP and UDP for the INPUT chain.\n");
-+
-+ return false;
-+}
-+
-+
-+static struct xt_match stealth_match __read_mostly = {
-+ .name = "stealth",
-+ .family = AF_INET,
-+ .match = match,
-+ .checkentry = checkentry,
-+ .destroy = NULL,
-+ .me = THIS_MODULE
-+};
-+
-+static int __init init(void)
-+{
-+ return xt_register_match(&stealth_match);
-+}
-+
-+static void __exit fini(void)
-+{
-+ xt_unregister_match(&stealth_match);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -urNp linux-2.6.28.7/net/ipv4/netfilter/Kconfig linux-2.6.28.7/net/ipv4/netfilter/Kconfig
---- linux-2.6.28.7/net/ipv4/netfilter/Kconfig 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/ipv4/netfilter/Kconfig 2009-03-07 04:29:14.000000000 -0500
-@@ -101,6 +101,21 @@ config IP_NF_MATCH_TTL
-
- To compile it as a module, choose M here. If unsure, say N.
-
-+config IP_NF_MATCH_STEALTH
-+ tristate "stealth match support"
-+ depends on IP_NF_IPTABLES
-+ help
-+ Enabling this option will drop all syn packets coming to unserved tcp
-+ ports as well as all packets coming to unserved udp ports. If you
-+ are using your system to route any type of packets (ie. via NAT)
-+ you should put this module at the end of your ruleset, since it will
-+ drop packets that aren't going to ports that are listening on your
-+ machine itself, it doesn't take into account that the packet might be
-+ destined for someone on your internal network if you're using NAT for
-+ instance.
-+
-+ To compile it as a module, choose M here. If unsure, say N.
-+
- # `filter', generic and specific targets
- config IP_NF_FILTER
- tristate "Packet filtering"
-diff -urNp linux-2.6.28.7/net/ipv4/netfilter/Makefile linux-2.6.28.7/net/ipv4/netfilter/Makefile
---- linux-2.6.28.7/net/ipv4/netfilter/Makefile 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/ipv4/netfilter/Makefile 2009-02-21 09:37:50.000000000 -0500
-@@ -61,6 +61,7 @@ obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) +=
- obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o
- obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
- obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
-+obj-$(CONFIG_IP_NF_MATCH_STEALTH) += ipt_stealth.o
- obj-$(CONFIG_IP_NF_TARGET_TTL) += ipt_TTL.o
- obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o
-
-diff -urNp linux-2.6.28.7/net/ipv4/tcp_ipv4.c linux-2.6.28.7/net/ipv4/tcp_ipv4.c
---- linux-2.6.28.7/net/ipv4/tcp_ipv4.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/ipv4/tcp_ipv4.c 2009-02-21 09:37:50.000000000 -0500
-@@ -55,6 +55,7 @@
- #include <linux/fcntl.h>
- #include <linux/module.h>
- #include <linux/random.h>
-+#include <linux/security.h>
- #include <linux/cache.h>
- #include <linux/jhash.h>
- #include <linux/init.h>
-diff -urNp linux-2.6.28.7/net/ipv4/udp.c linux-2.6.28.7/net/ipv4/udp.c
---- linux-2.6.28.7/net/ipv4/udp.c 2009-02-08 00:54:28.000000000 -0500
-+++ linux-2.6.28.7/net/ipv4/udp.c 2009-02-21 09:37:50.000000000 -0500
-@@ -84,6 +84,7 @@
- #include <linux/types.h>
- #include <linux/fcntl.h>
- #include <linux/module.h>
-+#include <linux/security.h>
- #include <linux/socket.h>
- #include <linux/sockios.h>
- #include <linux/igmp.h>
-@@ -104,6 +105,9 @@
- #include <net/xfrm.h>
- #include "udp_impl.h"
-
-+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
-+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
-+
- /*
- * Snmp MIB for the UDP layer
- */
-@@ -284,6 +288,13 @@ struct sock *udp4_lib_lookup(struct net
- }
- EXPORT_SYMBOL_GPL(udp4_lib_lookup);
-
-+struct sock *udp_v4_lookup(struct net *net, __be32 saddr, __be16 sport,
-+ __be32 daddr, __be16 dport, int dif)
-+{
-+ return __udp4_lib_lookup(net, saddr, sport, daddr, dport, dif, udp_hash);
-+}
-+
-+
- static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk,
- __be16 loc_port, __be32 loc_addr,
- __be16 rmt_port, __be32 rmt_addr,
-@@ -574,9 +585,18 @@ int udp_sendmsg(struct kiocb *iocb, stru
- dport = usin->sin_port;
- if (dport == 0)
- return -EINVAL;
-+
-+ err = gr_search_udp_sendmsg(sk, usin);
-+ if (err)
-+ return err;
- } else {
- if (sk->sk_state != TCP_ESTABLISHED)
- return -EDESTADDRREQ;
-+
-+ err = gr_search_udp_sendmsg(sk, NULL);
-+ if (err)
-+ return err;
-+
- daddr = inet->daddr;
- dport = inet->dport;
- /* Open fast path for connected socket.
-@@ -842,6 +862,10 @@ try_again:
- if (!skb)
- goto out;
-
-+ err = gr_search_udp_recvmsg(sk, skb);
-+ if (err)
-+ goto out_free;
-+
- ulen = skb->len - sizeof(struct udphdr);
- copied = len;
- if (copied > ulen)
-diff -urNp linux-2.6.28.7/net/ipv6/exthdrs.c linux-2.6.28.7/net/ipv6/exthdrs.c
---- linux-2.6.28.7/net/ipv6/exthdrs.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/ipv6/exthdrs.c 2009-02-21 09:37:50.000000000 -0500
-@@ -630,7 +630,7 @@ static struct tlvtype_proc tlvprochopopt
- .type = IPV6_TLV_JUMBO,
- .func = ipv6_hop_jumbo,
- },
-- { -1, }
-+ { -1, NULL }
- };
-
- int ipv6_parse_hopopts(struct sk_buff *skb)
-diff -urNp linux-2.6.28.7/net/ipv6/raw.c linux-2.6.28.7/net/ipv6/raw.c
---- linux-2.6.28.7/net/ipv6/raw.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/ipv6/raw.c 2009-02-21 09:37:50.000000000 -0500
-@@ -600,7 +600,7 @@ out:
- return err;
- }
-
--static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
-+static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length,
- struct flowi *fl, struct rt6_info *rt,
- unsigned int flags)
- {
-diff -urNp linux-2.6.28.7/net/irda/ircomm/ircomm_tty.c linux-2.6.28.7/net/irda/ircomm/ircomm_tty.c
---- linux-2.6.28.7/net/irda/ircomm/ircomm_tty.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/irda/ircomm/ircomm_tty.c 2009-02-21 09:37:50.000000000 -0500
-@@ -371,7 +371,7 @@ static int ircomm_tty_open(struct tty_st
- IRDA_DEBUG(2, "%s()\n", __func__ );
-
- line = tty->index;
-- if ((line < 0) || (line >= IRCOMM_TTY_PORTS)) {
-+ if (line >= IRCOMM_TTY_PORTS) {
- return -ENODEV;
- }
-
-diff -urNp linux-2.6.28.7/net/sctp/socket.c linux-2.6.28.7/net/sctp/socket.c
---- linux-2.6.28.7/net/sctp/socket.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/sctp/socket.c 2009-02-21 09:37:50.000000000 -0500
-@@ -1434,7 +1434,7 @@ SCTP_STATIC int sctp_sendmsg(struct kioc
- struct sctp_sndrcvinfo *sinfo;
- struct sctp_initmsg *sinit;
- sctp_assoc_t associd = 0;
-- sctp_cmsgs_t cmsgs = { NULL };
-+ sctp_cmsgs_t cmsgs = { NULL, NULL };
- int err;
- sctp_scope_t scope;
- long timeo;
-@@ -5616,7 +5616,6 @@ pp_found:
- */
- int reuse = sk->sk_reuse;
- struct sock *sk2;
-- struct hlist_node *node;
-
- SCTP_DEBUG_PRINTK("sctp_get_port() found a possible match\n");
- if (pp->fastreuse && sk->sk_reuse &&
-diff -urNp linux-2.6.28.7/net/socket.c linux-2.6.28.7/net/socket.c
---- linux-2.6.28.7/net/socket.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/socket.c 2009-03-07 04:29:14.000000000 -0500
-@@ -87,6 +87,7 @@
- #include <linux/audit.h>
- #include <linux/wireless.h>
- #include <linux/nsproxy.h>
-+#include <linux/in.h>
-
- #include <asm/uaccess.h>
- #include <asm/unistd.h>
-@@ -97,6 +98,21 @@
- #include <net/sock.h>
- #include <linux/netfilter.h>
-
-+extern void gr_attach_curr_ip(const struct sock *sk);
-+extern int gr_handle_sock_all(const int family, const int type,
-+ const int protocol);
-+extern int gr_handle_sock_server(const struct sockaddr *sck);
-+extern int gr_handle_sock_server_other(const struct socket *sck);
-+extern int gr_handle_sock_client(const struct sockaddr *sck);
-+extern int gr_search_connect(struct socket * sock,
-+ struct sockaddr_in * addr);
-+extern int gr_search_bind(struct socket * sock,
-+ struct sockaddr_in * addr);
-+extern int gr_search_listen(struct socket * sock);
-+extern int gr_search_accept(struct socket * sock);
-+extern int gr_search_socket(const int domain, const int type,
-+ const int protocol);
-+
- static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
- static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
- unsigned long nr_segs, loff_t pos);
-@@ -300,7 +316,7 @@ static int sockfs_get_sb(struct file_sys
- mnt);
- }
-
--static struct vfsmount *sock_mnt __read_mostly;
-+struct vfsmount *sock_mnt __read_mostly;
-
- static struct file_system_type sock_fs_type = {
- .name = "sockfs",
-@@ -1235,6 +1251,16 @@ SYSCALL_DEFINE3(socket, int, family, int
- if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
- flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
-
-+ if(!gr_search_socket(family, type, protocol)) {
-+ retval = -EACCES;
-+ goto out;
-+ }
-+
-+ if (gr_handle_sock_all(family, type, protocol)) {
-+ retval = -EACCES;
-+ goto out;
-+ }
-+
- retval = sock_create(family, type, protocol, &sock);
- if (retval < 0)
- goto out;
-@@ -1374,6 +1400,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct so
- if (sock) {
- err = move_addr_to_kernel(umyaddr, addrlen, (struct sockaddr *)&address);
- if (err >= 0) {
-+ if (gr_handle_sock_server((struct sockaddr *)&address)) {
-+ err = -EACCES;
-+ goto error;
-+ }
-+ err = gr_search_bind(sock, (struct sockaddr_in *)&address);
-+ if (err)
-+ goto error;
-+
- err = security_socket_bind(sock,
- (struct sockaddr *)&address,
- addrlen);
-@@ -1382,6 +1416,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct so
- (struct sockaddr *)
- &address, addrlen);
- }
-+error:
- fput_light(sock->file, fput_needed);
- }
- return err;
-@@ -1405,10 +1440,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, ba
- if ((unsigned)backlog > somaxconn)
- backlog = somaxconn;
-
-+ if (gr_handle_sock_server_other(sock)) {
-+ err = -EPERM;
-+ goto error;
-+ }
-+
-+ err = gr_search_listen(sock);
-+ if (err)
-+ goto error;
-+
- err = security_socket_listen(sock, backlog);
- if (!err)
- err = sock->ops->listen(sock, backlog);
-
-+error:
- fput_light(sock->file, fput_needed);
- }
- return err;
-@@ -1451,6 +1496,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct
- newsock->type = sock->type;
- newsock->ops = sock->ops;
-
-+ if (gr_handle_sock_server_other(sock)) {
-+ err = -EPERM;
-+ sock_release(newsock);
-+ goto out_put;
-+ }
-+
-+ err = gr_search_accept(sock);
-+ if (err) {
-+ sock_release(newsock);
-+ goto out_put;
-+ }
-+
- /*
- * We don't need try_module_get here, as the listening socket (sock)
- * has the protocol module (sock->ops->owner) held.
-@@ -1494,6 +1551,7 @@ SYSCALL_DEFINE4(accept4, int, fd, struct
- err = newfd;
-
- security_socket_post_accept(sock, newsock);
-+ gr_attach_curr_ip(newsock->sk);
-
- out_put:
- fput_light(sock->file, fput_needed);
-@@ -1532,6 +1590,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct
- int, addrlen)
- {
- struct socket *sock;
-+ struct sockaddr *sck;
- struct sockaddr_storage address;
- int err, fput_needed;
-
-@@ -1542,6 +1601,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct
- if (err < 0)
- goto out_put;
-
-+ sck = (struct sockaddr *)&address;
-+
-+ if (gr_handle_sock_client(sck)) {
-+ err = -EACCES;
-+ goto out_put;
-+ }
-+
-+ err = gr_search_connect(sock, (struct sockaddr_in *)sck);
-+ if (err)
-+ goto out_put;
-+
- err =
- security_socket_connect(sock, (struct sockaddr *)&address, addrlen);
- if (err)
-diff -urNp linux-2.6.28.7/net/unix/af_unix.c linux-2.6.28.7/net/unix/af_unix.c
---- linux-2.6.28.7/net/unix/af_unix.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/net/unix/af_unix.c 2009-02-21 09:37:50.000000000 -0500
-@@ -727,6 +727,12 @@ static struct sock *unix_find_other(stru
- err = -ECONNREFUSED;
- if (!S_ISSOCK(inode->i_mode))
- goto put_fail;
-+
-+ if (!gr_acl_handle_unix(path.dentry, path.mnt)) {
-+ err = -EACCES;
-+ goto put_fail;
-+ }
-+
- u = unix_find_socket_byinode(net, inode);
- if (!u)
- goto put_fail;
-@@ -747,6 +753,13 @@ static struct sock *unix_find_other(stru
- if (u) {
- struct dentry *dentry;
- dentry = unix_sk(u)->dentry;
-+
-+ if (!gr_handle_chroot_unix(u->sk_peercred.pid)) {
-+ err = -EPERM;
-+ sock_put(u);
-+ goto fail;
-+ }
-+
- if (dentry)
- touch_atime(unix_sk(u)->mnt, dentry);
- } else
-@@ -829,10 +842,20 @@ static int unix_bind(struct socket *sock
- err = mnt_want_write(nd.path.mnt);
- if (err)
- goto out_mknod_dput;
-+
-+ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) {
-+ err = -EACCES;
-+ mnt_drop_write(nd.path.mnt);
-+ goto out_mknod_dput;
-+ }
-+
- err = vfs_mknod(nd.path.dentry->d_inode, dentry, mode, 0);
- mnt_drop_write(nd.path.mnt);
- if (err)
- goto out_mknod_dput;
-+
-+ gr_handle_create(dentry, nd.path.mnt);
-+
- mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
- dput(nd.path.dentry);
- nd.path.dentry = dentry;
-@@ -850,6 +873,10 @@ static int unix_bind(struct socket *sock
- goto out_unlock;
- }
-
-+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
-+ sk->sk_peercred.pid = current->pid;
-+#endif
-+
- list = &unix_socket_table[addr->hash];
- } else {
- list = &unix_socket_table[dentry->d_inode->i_ino & (UNIX_HASH_SIZE-1)];
-diff -urNp linux-2.6.28.7/scripts/pnmtologo.c linux-2.6.28.7/scripts/pnmtologo.c
---- linux-2.6.28.7/scripts/pnmtologo.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/scripts/pnmtologo.c 2009-02-21 09:37:50.000000000 -0500
-@@ -237,14 +237,14 @@ static void write_header(void)
- fprintf(out, " * Linux logo %s\n", logoname);
- fputs(" */\n\n", out);
- fputs("#include <linux/linux_logo.h>\n\n", out);
-- fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
-+ fprintf(out, "static unsigned char %s_data[] = {\n",
- logoname);
- }
-
- static void write_footer(void)
- {
- fputs("\n};\n\n", out);
-- fprintf(out, "struct linux_logo %s __initdata = {\n", logoname);
-+ fprintf(out, "struct linux_logo %s = {\n", logoname);
- fprintf(out, " .type\t= %s,\n", logo_types[logo_type]);
- fprintf(out, " .width\t= %d,\n", logo_width);
- fprintf(out, " .height\t= %d,\n", logo_height);
-@@ -374,7 +374,7 @@ static void write_logo_clut224(void)
- fputs("\n};\n\n", out);
-
- /* write logo clut */
-- fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
-+ fprintf(out, "static unsigned char %s_clut[] = {\n",
- logoname);
- write_hex_cnt = 0;
- for (i = 0; i < logo_clutsize; i++) {
-diff -urNp linux-2.6.28.7/security/commoncap.c linux-2.6.28.7/security/commoncap.c
---- linux-2.6.28.7/security/commoncap.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/security/commoncap.c 2009-03-07 04:29:14.000000000 -0500
-@@ -27,9 +27,11 @@
- #include <linux/prctl.h>
- #include <linux/securebits.h>
-
-+extern kernel_cap_t gr_cap_rtnetlink(struct sock *sk);
-+
- int cap_netlink_send(struct sock *sk, struct sk_buff *skb)
- {
-- NETLINK_CB(skb).eff_cap = current->cap_effective;
-+ NETLINK_CB(skb).eff_cap = gr_cap_rtnetlink(sk);
- return 0;
- }
-
-@@ -56,6 +58,14 @@ int cap_capable (struct task_struct *tsk
- return -EPERM;
- }
-
-+int cap_capable_nolog (struct task_struct *tsk, int cap)
-+{
-+ /* tsk = current for all callers */
-+ if (cap_raised(tsk->cap_effective, cap) && gr_is_capable_nolog(cap))
-+ return 0;
-+ return -EPERM;
-+}
-+
- int cap_settime(struct timespec *ts, struct timezone *tz)
- {
- if (!capable(CAP_SYS_TIME))
-@@ -379,8 +389,11 @@ void cap_bprm_apply_creds (struct linux_
- }
- }
-
-- current->suid = current->euid = current->fsuid = bprm->e_uid;
-- current->sgid = current->egid = current->fsgid = bprm->e_gid;
-+ if (!gr_check_user_change(-1, bprm->e_uid, bprm->e_uid))
-+ current->suid = current->euid = current->fsuid = bprm->e_uid;
-+
-+ if (!gr_check_group_change(-1, bprm->e_gid, bprm->e_gid))
-+ current->sgid = current->egid = current->fsgid = bprm->e_gid;
-
- /* For init, we want to retain the capabilities set
- * in the init_task struct. Thus we skip the usual
-@@ -393,6 +406,8 @@ void cap_bprm_apply_creds (struct linux_
- cap_clear(current->cap_effective);
- }
-
-+ gr_handle_chroot_caps(current);
-+
- /* AUD: Audit candidate if current->cap_effective is set */
-
- current->securebits &= ~issecure_mask(SECURE_KEEP_CAPS);
-@@ -705,7 +720,7 @@ int cap_vm_enough_memory(struct mm_struc
- {
- int cap_sys_admin = 0;
-
-- if (cap_capable(current, CAP_SYS_ADMIN) == 0)
-+ if (cap_capable_nolog(current, CAP_SYS_ADMIN) == 0)
- cap_sys_admin = 1;
- return __vm_enough_memory(mm, pages, cap_sys_admin);
- }
-diff -urNp linux-2.6.28.7/security/Kconfig linux-2.6.28.7/security/Kconfig
---- linux-2.6.28.7/security/Kconfig 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/security/Kconfig 2009-02-21 09:37:50.000000000 -0500
-@@ -4,6 +4,447 @@
-
- menu "Security options"
-
-+source grsecurity/Kconfig
-+
-+menu "PaX"
-+
-+config PAX
-+ bool "Enable various PaX features"
-+ depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS32 || MIPS64 || PARISC || PPC32 || PPC64 || SPARC32 || SPARC64 || X86)
-+ help
-+ This allows you to enable various PaX features. PaX adds
-+ intrusion prevention mechanisms to the kernel that reduce
-+ the risks posed by exploitable memory corruption bugs.
-+
-+menu "PaX Control"
-+ depends on PAX
-+
-+config PAX_SOFTMODE
-+ bool 'Support soft mode'
-+ help
-+ Enabling this option will allow you to run PaX in soft mode, that
-+ is, PaX features will not be enforced by default, only on executables
-+ marked explicitly. You must also enable PT_PAX_FLAGS support as it
-+ is the only way to mark executables for soft mode use.
-+
-+ Soft mode can be activated by using the "pax_softmode=1" kernel command
-+ line option on boot. Furthermore you can control various PaX features
-+ at runtime via the entries in /proc/sys/kernel/pax.
-+
-+config PAX_EI_PAX
-+ bool 'Use legacy ELF header marking'
-+ help
-+ Enabling this option will allow you to control PaX features on
-+ a per executable basis via the 'chpax' utility available at
-+ http://pax.grsecurity.net/. The control flags will be read from
-+ an otherwise reserved part of the ELF header. This marking has
-+ numerous drawbacks (no support for soft-mode, toolchain does not
-+ know about the non-standard use of the ELF header) therefore it
-+ has been deprecated in favour of PT_PAX_FLAGS support.
-+
-+ If you have applications not marked by the PT_PAX_FLAGS ELF
-+ program header then you MUST enable this option otherwise they
-+ will not get any protection.
-+
-+ Note that if you enable PT_PAX_FLAGS marking support as well,
-+ the PT_PAX_FLAG marks will override the legacy EI_PAX marks.
-+
-+config PAX_PT_PAX_FLAGS
-+ bool 'Use ELF program header marking'
-+ help
-+ Enabling this option will allow you to control PaX features on
-+ a per executable basis via the 'paxctl' utility available at
-+ http://pax.grsecurity.net/. The control flags will be read from
-+ a PaX specific ELF program header (PT_PAX_FLAGS). This marking
-+ has the benefits of supporting both soft mode and being fully
-+ integrated into the toolchain (the binutils patch is available
-+ from http://pax.grsecurity.net).
-+
-+ If you have applications not marked by the PT_PAX_FLAGS ELF
-+ program header then you MUST enable the EI_PAX marking support
-+ otherwise they will not get any protection.
-+
-+ Note that if you enable the legacy EI_PAX marking support as well,
-+ the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks.
-+
-+choice
-+ prompt 'MAC system integration'
-+ default PAX_HAVE_ACL_FLAGS
-+ help
-+ Mandatory Access Control systems have the option of controlling
-+ PaX flags on a per executable basis, choose the method supported
-+ by your particular system.
-+
-+ - "none": if your MAC system does not interact with PaX,
-+ - "direct": if your MAC system defines pax_set_initial_flags() itself,
-+ - "hook": if your MAC system uses the pax_set_initial_flags_func callback.
-+
-+ NOTE: this option is for developers/integrators only.
-+
-+ config PAX_NO_ACL_FLAGS
-+ bool 'none'
-+
-+ config PAX_HAVE_ACL_FLAGS
-+ bool 'direct'
-+
-+ config PAX_HOOK_ACL_FLAGS
-+ bool 'hook'
-+endchoice
-+
-+endmenu
-+
-+menu "Non-executable pages"
-+ depends on PAX
-+
-+config PAX_NOEXEC
-+ bool "Enforce non-executable pages"
-+ depends on (PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS) && (ALPHA || IA64 || MIPS32 || MIPS64 || PARISC || PPC32 || PPC64 || SPARC32 || SPARC64 || X86)
-+ help
-+ By design some architectures do not allow for protecting memory
-+ pages against execution or even if they do, Linux does not make
-+ use of this feature. In practice this means that if a page is
-+ readable (such as the stack or heap) it is also executable.
-+
-+ There is a well known exploit technique that makes use of this
-+ fact and a common programming mistake where an attacker can
-+ introduce code of his choice somewhere in the attacked program's
-+ memory (typically the stack or the heap) and then execute it.
-+
-+ If the attacked program was running with different (typically
-+ higher) privileges than that of the attacker, then he can elevate
-+ his own privilege level (e.g. get a root shell, write to files for
-+ which he does not have write access to, etc).
-+
-+ Enabling this option will let you choose from various features
-+ that prevent the injection and execution of 'foreign' code in
-+ a program.
-+
-+ This will also break programs that rely on the old behaviour and
-+ expect that dynamically allocated memory via the malloc() family
-+ of functions is executable (which it is not). Notable examples
-+ are the XFree86 4.x server, the java runtime and wine.
-+
-+config PAX_PAGEEXEC
-+ bool "Paging based non-executable pages"
-+ depends on !COMPAT_VDSO && PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7)
-+ help
-+ This implementation is based on the paging feature of the CPU.
-+ On i386 without hardware non-executable bit support there is a
-+ variable but usually low performance impact, however on Intel's
-+ P4 core based CPUs it is very high so you should not enable this
-+ for kernels meant to be used on such CPUs.
-+
-+ On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386
-+ with hardware non-executable bit support there is no performance
-+ impact, on ppc the impact is negligible.
-+
-+ Note that several architectures require various emulations due to
-+ badly designed userland ABIs, this will cause a performance impact
-+ but will disappear as soon as userland is fixed (e.g., ppc users
-+ can make use of the secure-plt feature found in binutils).
-+
-+config PAX_SEGMEXEC
-+ bool "Segmentation based non-executable pages"
-+ depends on !COMPAT_VDSO && PAX_NOEXEC && X86_32
-+ help
-+ This implementation is based on the segmentation feature of the
-+ CPU and has a very small performance impact, however applications
-+ will be limited to a 1.5 GB address space instead of the normal
-+ 3 GB.
-+
-+config PAX_EMUTRAMP
-+ bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || PPC32 || X86)
-+ default y if PARISC || PPC32
-+ help
-+ There are some programs and libraries that for one reason or
-+ another attempt to execute special small code snippets from
-+ non-executable memory pages. Most notable examples are the
-+ signal handler return code generated by the kernel itself and
-+ the GCC trampolines.
-+
-+ If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then
-+ such programs will no longer work under your kernel.
-+
-+ As a remedy you can say Y here and use the 'chpax' or 'paxctl'
-+ utilities to enable trampoline emulation for the affected programs
-+ yet still have the protection provided by the non-executable pages.
-+
-+ On parisc and ppc you MUST enable this option and EMUSIGRT as
-+ well, otherwise your system will not even boot.
-+
-+ Alternatively you can say N here and use the 'chpax' or 'paxctl'
-+ utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC
-+ for the affected files.
-+
-+ NOTE: enabling this feature *may* open up a loophole in the
-+ protection provided by non-executable pages that an attacker
-+ could abuse. Therefore the best solution is to not have any
-+ files on your system that would require this option. This can
-+ be achieved by not using libc5 (which relies on the kernel
-+ signal handler return code) and not using or rewriting programs
-+ that make use of the nested function implementation of GCC.
-+ Skilled users can just fix GCC itself so that it implements
-+ nested function calls in a way that does not interfere with PaX.
-+
-+config PAX_EMUSIGRT
-+ bool "Automatically emulate sigreturn trampolines"
-+ depends on PAX_EMUTRAMP && (PARISC || PPC32)
-+ default y
-+ help
-+ Enabling this option will have the kernel automatically detect
-+ and emulate signal return trampolines executing on the stack
-+ that would otherwise lead to task termination.
-+
-+ This solution is intended as a temporary one for users with
-+ legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17,
-+ Modula-3 runtime, etc) or executables linked to such, basically
-+ everything that does not specify its own SA_RESTORER function in
-+ normal executable memory like glibc 2.1+ does.
-+
-+ On parisc and ppc you MUST enable this option, otherwise your
-+ system will not even boot.
-+
-+ NOTE: this feature cannot be disabled on a per executable basis
-+ and since it *does* open up a loophole in the protection provided
-+ by non-executable pages, the best solution is to not have any
-+ files on your system that would require this option.
-+
-+config PAX_MPROTECT
-+ bool "Restrict mprotect()"
-+ depends on (PAX_PAGEEXEC || PAX_SEGMEXEC) && !PPC64
-+ help
-+ Enabling this option will prevent programs from
-+ - changing the executable status of memory pages that were
-+ not originally created as executable,
-+ - making read-only executable pages writable again,
-+ - creating executable pages from anonymous memory.
-+
-+ You should say Y here to complete the protection provided by
-+ the enforcement of non-executable pages.
-+
-+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control
-+ this feature on a per file basis.
-+
-+config PAX_NOELFRELOCS
-+ bool "Disallow ELF text relocations"
-+ depends on PAX_MPROTECT && !PAX_ETEXECRELOCS && (IA64 || X86)
-+ help
-+ Non-executable pages and mprotect() restrictions are effective
-+ in preventing the introduction of new executable code into an
-+ attacked task's address space. There remain only two venues
-+ for this kind of attack: if the attacker can execute already
-+ existing code in the attacked task then he can either have it
-+ create and mmap() a file containing his code or have it mmap()
-+ an already existing ELF library that does not have position
-+ independent code in it and use mprotect() on it to make it
-+ writable and copy his code there. While protecting against
-+ the former approach is beyond PaX, the latter can be prevented
-+ by having only PIC ELF libraries on one's system (which do not
-+ need to relocate their code). If you are sure this is your case,
-+ then enable this option otherwise be careful as you may not even
-+ be able to boot or log on your system (for example, some PAM
-+ modules are erroneously compiled as non-PIC by default).
-+
-+ NOTE: if you are using dynamic ELF executables (as suggested
-+ when using ASLR) then you must have made sure that you linked
-+ your files using the PIC version of crt1 (the et_dyn.tar.gz package
-+ referenced there has already been updated to support this).
-+
-+config PAX_ETEXECRELOCS
-+ bool "Allow ELF ET_EXEC text relocations"
-+ depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC)
-+ default y
-+ help
-+ On some architectures there are incorrectly created applications
-+ that require text relocations and would not work without enabling
-+ this option. If you are an alpha, ia64 or parisc user, you should
-+ enable this option and disable it once you have made sure that
-+ none of your applications need it.
-+
-+config PAX_EMUPLT
-+ bool "Automatically emulate ELF PLT"
-+ depends on PAX_MPROTECT && (ALPHA || PARISC || PPC32 || SPARC32 || SPARC64)
-+ default y
-+ help
-+ Enabling this option will have the kernel automatically detect
-+ and emulate the Procedure Linkage Table entries in ELF files.
-+ On some architectures such entries are in writable memory, and
-+ become non-executable leading to task termination. Therefore
-+ it is mandatory that you enable this option on alpha, parisc,
-+ ppc (if secure-plt is not used throughout in userland), sparc
-+ and sparc64, otherwise your system would not even boot.
-+
-+ NOTE: this feature *does* open up a loophole in the protection
-+ provided by the non-executable pages, therefore the proper
-+ solution is to modify the toolchain to produce a PLT that does
-+ not need to be writable.
-+
-+config PAX_DLRESOLVE
-+ bool
-+ depends on PAX_EMUPLT && (SPARC32 || SPARC64)
-+ default y
-+
-+config PAX_SYSCALL
-+ bool
-+ depends on PAX_PAGEEXEC && PPC32
-+ default y
-+
-+config PAX_KERNEXEC
-+ bool "Enforce non-executable kernel pages"
-+ depends on PAX_NOEXEC && X86 && !EFI && !COMPAT_VDSO && (!X86_32 || X86_WP_WORKS_OK) && !PARAVIRT
-+ help
-+ This is the kernel land equivalent of PAGEEXEC and MPROTECT,
-+ that is, enabling this option will make it harder to inject
-+ and execute 'foreign' code in kernel memory itself.
-+
-+endmenu
-+
-+menu "Address Space Layout Randomization"
-+ depends on PAX
-+
-+config PAX_ASLR
-+ bool "Address Space Layout Randomization"
-+ depends on PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS
-+ help
-+ Many if not most exploit techniques rely on the knowledge of
-+ certain addresses in the attacked program. The following options
-+ will allow the kernel to apply a certain amount of randomization
-+ to specific parts of the program thereby forcing an attacker to
-+ guess them in most cases. Any failed guess will most likely crash
-+ the attacked program which allows the kernel to detect such attempts
-+ and react on them. PaX itself provides no reaction mechanisms,
-+ instead it is strongly encouraged that you make use of Nergal's
-+ segvguard (ftp://ftp.pl.openwall.com/misc/segvguard/) or grsecurity's
-+ (http://www.grsecurity.net/) built-in crash detection features or
-+ develop one yourself.
-+
-+ By saying Y here you can choose to randomize the following areas:
-+ - top of the task's kernel stack
-+ - top of the task's userland stack
-+ - base address for mmap() requests that do not specify one
-+ (this includes all libraries)
-+ - base address of the main executable
-+
-+ It is strongly recommended to say Y here as address space layout
-+ randomization has negligible impact on performance yet it provides
-+ a very effective protection.
-+
-+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control
-+ this feature on a per file basis.
-+
-+config PAX_RANDKSTACK
-+ bool "Randomize kernel stack base"
-+ depends on PAX_ASLR && X86_TSC && X86_32
-+ help
-+ By saying Y here the kernel will randomize every task's kernel
-+ stack on every system call. This will not only force an attacker
-+ to guess it but also prevent him from making use of possible
-+ leaked information about it.
-+
-+ Since the kernel stack is a rather scarce resource, randomization
-+ may cause unexpected stack overflows, therefore you should very
-+ carefully test your system. Note that once enabled in the kernel
-+ configuration, this feature cannot be disabled on a per file basis.
-+
-+config PAX_RANDUSTACK
-+ bool "Randomize user stack base"
-+ depends on PAX_ASLR
-+ help
-+ By saying Y here the kernel will randomize every task's userland
-+ stack. The randomization is done in two steps where the second
-+ one may apply a big amount of shift to the top of the stack and
-+ cause problems for programs that want to use lots of memory (more
-+ than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is).
-+ For this reason the second step can be controlled by 'chpax' or
-+ 'paxctl' on a per file basis.
-+
-+config PAX_RANDMMAP
-+ bool "Randomize mmap() base"
-+ depends on PAX_ASLR
-+ help
-+ By saying Y here the kernel will use a randomized base address for
-+ mmap() requests that do not specify one themselves. As a result
-+ all dynamically loaded libraries will appear at random addresses
-+ and therefore be harder to exploit by a technique where an attacker
-+ attempts to execute library code for his purposes (e.g. spawn a
-+ shell from an exploited program that is running at an elevated
-+ privilege level).
-+
-+ Furthermore, if a program is relinked as a dynamic ELF file, its
-+ base address will be randomized as well, completing the full
-+ randomization of the address space layout. Attacking such programs
-+ becomes a guess game. You can find an example of doing this at
-+ http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at
-+ http://www.grsecurity.net/grsec-gcc-specs.tar.gz .
-+
-+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control this
-+ feature on a per file basis.
-+
-+endmenu
-+
-+menu "Miscellaneous hardening features"
-+
-+config PAX_MEMORY_SANITIZE
-+ bool "Sanitize all freed memory"
-+ help
-+ By saying Y here the kernel will erase memory pages as soon as they
-+ are freed. This in turn reduces the lifetime of data stored in the
-+ pages, making it less likely that sensitive information such as
-+ passwords, cryptographic secrets, etc stay in memory for too long.
-+
-+ This is especially useful for programs whose runtime is short, long
-+ lived processes and the kernel itself benefit from this as long as
-+ they operate on whole memory pages and ensure timely freeing of pages
-+ that may hold sensitive information.
-+
-+ The tradeoff is performance impact, on a single CPU system kernel
-+ compilation sees a 3% slowdown, other systems and workloads may vary
-+ and you are advised to test this feature on your expected workload
-+ before deploying it.
-+
-+ Note that this feature does not protect data stored in live pages,
-+ e.g., process memory swapped to disk may stay there for a long time.
-+
-+config PAX_MEMORY_UDEREF
-+ bool "Prevent invalid userland pointer dereference"
-+ depends on X86_32 && !COMPAT_VDSO && !UML_X86
-+ help
-+ By saying Y here the kernel will be prevented from dereferencing
-+ userland pointers in contexts where the kernel expects only kernel
-+ pointers. This is both a useful runtime debugging feature and a
-+ security measure that prevents exploiting a class of kernel bugs.
-+
-+ The tradeoff is that some virtualization solutions may experience
-+ a huge slowdown and therefore you should not enable this feature
-+ for kernels meant to run in such environments. Whether a given VM
-+ solution is affected or not is best determined by simply trying it
-+ out, the performance impact will be obvious right on boot as this
-+ mechanism engages from very early on. A good rule of thumb is that
-+ VMs running on CPUs without hardware virtualization support (i.e.,
-+ the majority of IA-32 CPUs) will likely experience the slowdown.
-+
-+config PAX_REFCOUNT
-+ bool "Prevent various kernel object reference counter overflows"
-+ depends on X86
-+ help
-+ By saying Y here the kernel will detect and prevent overflowing
-+ various (but not all) kinds of object reference counters. Such
-+ overflows can normally occur due to bugs only and are often, if
-+ not always, exploitable.
-+
-+ The tradeoff is that data structures protected by an overflowed
-+ refcount will never be freed and therefore will leak memory. Note
-+ that this leak also happens even without this protection but in
-+ that case the overflow can eventually trigger the freeing of the
-+ data structure while it is still being used elsewhere, resulting
-+ in the exploitable situation that this feature prevents.
-+
-+ Since this has a negligible performance impact, you should enable
-+ this feature.
-+endmenu
-+
-+endmenu
-+
- config KEYS
- bool "Enable access key retention support"
- help
-diff -urNp linux-2.6.28.7/sound/core/oss/pcm_oss.c linux-2.6.28.7/sound/core/oss/pcm_oss.c
---- linux-2.6.28.7/sound/core/oss/pcm_oss.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/sound/core/oss/pcm_oss.c 2009-02-21 09:37:50.000000000 -0500
-@@ -2929,8 +2929,8 @@ static void snd_pcm_oss_proc_done(struct
- }
- }
- #else /* !CONFIG_SND_VERBOSE_PROCFS */
--#define snd_pcm_oss_proc_init(pcm)
--#define snd_pcm_oss_proc_done(pcm)
-+#define snd_pcm_oss_proc_init(pcm) do {} while (0)
-+#define snd_pcm_oss_proc_done(pcm) do {} while (0)
- #endif /* CONFIG_SND_VERBOSE_PROCFS */
-
- /*
-diff -urNp linux-2.6.28.7/sound/core/seq/seq_lock.h linux-2.6.28.7/sound/core/seq/seq_lock.h
---- linux-2.6.28.7/sound/core/seq/seq_lock.h 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/sound/core/seq/seq_lock.h 2009-02-21 09:37:50.000000000 -0500
-@@ -23,10 +23,10 @@ void snd_use_lock_sync_helper(snd_use_lo
- #else /* SMP || CONFIG_SND_DEBUG */
-
- typedef spinlock_t snd_use_lock_t; /* dummy */
--#define snd_use_lock_init(lockp) /**/
--#define snd_use_lock_use(lockp) /**/
--#define snd_use_lock_free(lockp) /**/
--#define snd_use_lock_sync(lockp) /**/
-+#define snd_use_lock_init(lockp) do {} while (0)
-+#define snd_use_lock_use(lockp) do {} while (0)
-+#define snd_use_lock_free(lockp) do {} while (0)
-+#define snd_use_lock_sync(lockp) do {} while (0)
-
- #endif /* SMP || CONFIG_SND_DEBUG */
-
-diff -urNp linux-2.6.28.7/sound/pci/ac97/ac97_patch.c linux-2.6.28.7/sound/pci/ac97/ac97_patch.c
---- linux-2.6.28.7/sound/pci/ac97/ac97_patch.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/sound/pci/ac97/ac97_patch.c 2009-02-21 09:37:50.000000000 -0500
-@@ -1498,7 +1498,7 @@ static const struct snd_ac97_res_table a
- { AC97_VIDEO, 0x9f1f },
- { AC97_AUX, 0x9f1f },
- { AC97_PCM, 0x9f1f },
-- { } /* terminator */
-+ { 0, 0 } /* terminator */
- };
-
- static int patch_ad1819(struct snd_ac97 * ac97)
-@@ -3870,7 +3870,7 @@ static struct snd_ac97_res_table lm4550_
- { AC97_AUX, 0x1f1f },
- { AC97_PCM, 0x1f1f },
- { AC97_REC_GAIN, 0x0f0f },
-- { } /* terminator */
-+ { 0, 0 } /* terminator */
- };
-
- static int patch_lm4550(struct snd_ac97 *ac97)
-diff -urNp linux-2.6.28.7/sound/pci/ens1370.c linux-2.6.28.7/sound/pci/ens1370.c
---- linux-2.6.28.7/sound/pci/ens1370.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/sound/pci/ens1370.c 2009-02-21 09:37:50.000000000 -0500
-@@ -452,7 +452,7 @@ static struct pci_device_id snd_audiopci
- { 0x1274, 0x5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ES1373 - CT5880 */
- { 0x1102, 0x8938, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* Ectiva EV1938 */
- #endif
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, snd_audiopci_ids);
-diff -urNp linux-2.6.28.7/sound/pci/intel8x0.c linux-2.6.28.7/sound/pci/intel8x0.c
---- linux-2.6.28.7/sound/pci/intel8x0.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/sound/pci/intel8x0.c 2009-02-21 09:37:50.000000000 -0500
-@@ -443,7 +443,7 @@ static struct pci_device_id snd_intel8x0
- { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
- { 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
- { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
-@@ -2088,7 +2088,7 @@ static struct ac97_quirk ac97_quirks[] _
- .type = AC97_TUNE_HP_ONLY
- },
- #endif
-- { } /* terminator */
-+ { 0, 0, 0, 0, NULL, 0 } /* terminator */
- };
-
- static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
-diff -urNp linux-2.6.28.7/sound/pci/intel8x0m.c linux-2.6.28.7/sound/pci/intel8x0m.c
---- linux-2.6.28.7/sound/pci/intel8x0m.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/sound/pci/intel8x0m.c 2009-02-21 09:37:50.000000000 -0500
-@@ -239,7 +239,7 @@ static struct pci_device_id snd_intel8x0
- { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
- { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */
- #endif
-- { 0, }
-+ { 0, 0, 0, 0, 0, 0, 0 }
- };
-
- MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
-@@ -1258,7 +1258,7 @@ static struct shortname_table {
- { 0x5455, "ALi M5455" },
- { 0x746d, "AMD AMD8111" },
- #endif
-- { 0 },
-+ { 0, NULL },
- };
-
- static int __devinit snd_intel8x0m_probe(struct pci_dev *pci,
-diff -urNp linux-2.6.28.7/virt/kvm/kvm_main.c linux-2.6.28.7/virt/kvm/kvm_main.c
---- linux-2.6.28.7/virt/kvm/kvm_main.c 2009-02-06 16:47:45.000000000 -0500
-+++ linux-2.6.28.7/virt/kvm/kvm_main.c 2009-02-21 09:37:50.000000000 -0500
-@@ -1765,6 +1765,9 @@ static struct miscdevice kvm_dev = {
- KVM_MINOR,
- "kvm",
- &kvm_chardev_ops,
-+ {NULL, NULL},
-+ NULL,
-+ NULL
- };
-
- static void hardware_enable(void *junk)
-@@ -1996,7 +1999,7 @@ static void kvm_sched_out(struct preempt
- kvm_arch_vcpu_put(vcpu);
- }
-
--int kvm_init(void *opaque, unsigned int vcpu_size,
-+int kvm_init(const void *opaque, unsigned int vcpu_size,
- struct module *module)
- {
- int r;
Added: hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.8-200903191958.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.8-200903191958.patch (rev 0)
+++ hardened/2.6/trunk/2.6.28/4420_grsec-2.1.13-2.6.28.8-200903191958.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -0,0 +1,37186 @@
+diff -urNp linux-2.6.28.8/arch/alpha/include/asm/elf.h linux-2.6.28.8/arch/alpha/include/asm/elf.h
+--- linux-2.6.28.8/arch/alpha/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/alpha/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N
+
+ #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
++
++#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
++#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
++#endif
++
+ /* $0 is set by ld.so to a pointer to a function which might be
+ registered using atexit. This provides a mean for the dynamic
+ linker to call DT_FINI functions for shared libraries that have
+diff -urNp linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -24,7 +24,8 @@ D(9) KM_IRQ0,
+ D(10) KM_IRQ1,
+ D(11) KM_SOFTIRQ0,
+ D(12) KM_SOFTIRQ1,
+-D(13) KM_TYPE_NR
++D(13) KM_CLEARPAGE,
++D(14) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/arch/alpha/include/asm/pgtable.h linux-2.6.28.8/arch/alpha/include/asm/pgtable.h
+--- linux-2.6.28.8/arch/alpha/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/alpha/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
+@@ -101,6 +101,17 @@ struct vm_area_struct;
+ #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS)
+ #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+ #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
++# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
++# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
++#else
++# define PAGE_SHARED_NOEXEC PAGE_SHARED
++# define PAGE_COPY_NOEXEC PAGE_COPY
++# define PAGE_READONLY_NOEXEC PAGE_READONLY
++#endif
++
+ #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
+
+ #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
+diff -urNp linux-2.6.28.8/arch/alpha/kernel/module.c linux-2.6.28.8/arch/alpha/kernel/module.c
+--- linux-2.6.28.8/arch/alpha/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/alpha/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
+@@ -182,7 +182,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs,
+
+ /* The small sections were sorted to the end of the segment.
+ The following should definitely cover them. */
+- gp = (u64)me->module_core + me->core_size - 0x8000;
++ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000;
+ got = sechdrs[me->arch.gotsecindex].sh_addr;
+
+ for (i = 0; i < n; i++) {
+diff -urNp linux-2.6.28.8/arch/alpha/kernel/osf_sys.c linux-2.6.28.8/arch/alpha/kernel/osf_sys.c
+--- linux-2.6.28.8/arch/alpha/kernel/osf_sys.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/alpha/kernel/osf_sys.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1230,6 +1230,10 @@ arch_get_unmapped_area(struct file *filp
+ merely specific addresses, but regions of memory -- perhaps
+ this feature should be incorporated into all ports? */
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ if (addr) {
+ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
+ if (addr != (unsigned long) -ENOMEM)
+@@ -1237,8 +1241,8 @@ arch_get_unmapped_area(struct file *filp
+ }
+
+ /* Next, try allocating at TASK_UNMAPPED_BASE. */
+- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
+- len, limit);
++ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit);
++
+ if (addr != (unsigned long) -ENOMEM)
+ return addr;
+
+diff -urNp linux-2.6.28.8/arch/alpha/kernel/ptrace.c linux-2.6.28.8/arch/alpha/kernel/ptrace.c
+--- linux-2.6.28.8/arch/alpha/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/alpha/kernel/ptrace.c 2009-02-21 09:37:48.000000000 -0500
+@@ -266,6 +266,9 @@ long arch_ptrace(struct task_struct *chi
+ size_t copied;
+ long ret;
+
++ if (gr_handle_ptrace(child, request))
++ return -EPERM;
++
+ switch (request) {
+ /* When I and D space are separate, these will need to be fixed. */
+ case PTRACE_PEEKTEXT: /* read word at location addr. */
+diff -urNp linux-2.6.28.8/arch/alpha/mm/fault.c linux-2.6.28.8/arch/alpha/mm/fault.c
+--- linux-2.6.28.8/arch/alpha/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/alpha/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -54,6 +54,124 @@ __load_new_mm_context(struct mm_struct *
+ __reload_thread(pcb);
+ }
+
++#ifdef CONFIG_PAX_PAGEEXEC
++/*
++ * PaX: decide what to do with offenders (regs->pc = fault address)
++ *
++ * returns 1 when task should be killed
++ * 2 when patched PLT trampoline was detected
++ * 3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++ int err;
++
++ do { /* PaX: patched PLT emulation #1 */
++ unsigned int ldah, ldq, jmp;
++
++ err = get_user(ldah, (unsigned int *)regs->pc);
++ err |= get_user(ldq, (unsigned int *)(regs->pc+4));
++ err |= get_user(jmp, (unsigned int *)(regs->pc+8));
++
++ if (err)
++ break;
++
++ if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
++ (ldq & 0xFFFF0000U) == 0xA77B0000U &&
++ jmp == 0x6BFB0000U)
++ {
++ unsigned long r27, addr;
++ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
++ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
++
++ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
++ err = get_user(r27, (unsigned long *)addr);
++ if (err)
++ break;
++
++ regs->r27 = r27;
++ regs->pc = r27;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: patched PLT emulation #2 */
++ unsigned int ldah, lda, br;
++
++ err = get_user(ldah, (unsigned int *)regs->pc);
++ err |= get_user(lda, (unsigned int *)(regs->pc+4));
++ err |= get_user(br, (unsigned int *)(regs->pc+8));
++
++ if (err)
++ break;
++
++ if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
++ (lda & 0xFFFF0000U) == 0xA77B0000U &&
++ (br & 0xFFE00000U) == 0xC3E00000U)
++ {
++ unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
++ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
++ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
++
++ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
++ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: unpatched PLT emulation */
++ unsigned int br;
++
++ err = get_user(br, (unsigned int *)regs->pc);
++
++ if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
++ unsigned int br2, ldq, nop, jmp;
++ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
++
++ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
++ err = get_user(br2, (unsigned int *)addr);
++ err |= get_user(ldq, (unsigned int *)(addr+4));
++ err |= get_user(nop, (unsigned int *)(addr+8));
++ err |= get_user(jmp, (unsigned int *)(addr+12));
++ err |= get_user(resolver, (unsigned long *)(addr+16));
++
++ if (err)
++ break;
++
++ if (br2 == 0xC3600000U &&
++ ldq == 0xA77B000CU &&
++ nop == 0x47FF041FU &&
++ jmp == 0x6B7B0000U)
++ {
++ regs->r28 = regs->pc+4;
++ regs->r27 = addr+16;
++ regs->pc = resolver;
++ return 3;
++ }
++ }
++ } while (0);
++#endif
++
++ return 1;
++}
++
++void pax_report_insns(void *pc, void *sp)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 5; i++) {
++ unsigned int c;
++ if (get_user(c, (unsigned int *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%08x ", c);
++ }
++ printk("\n");
++}
++#endif
+
+ /*
+ * This routine handles page faults. It determines the address,
+@@ -131,8 +249,29 @@ do_page_fault(unsigned long address, uns
+ good_area:
+ si_code = SEGV_ACCERR;
+ if (cause < 0) {
+- if (!(vma->vm_flags & VM_EXEC))
++ if (!(vma->vm_flags & VM_EXEC)) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
++ goto bad_area;
++
++ up_read(&mm->mmap_sem);
++ switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++ case 2:
++ case 3:
++ return;
++#endif
++
++ }
++ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
++ do_group_exit(SIGKILL);
++#else
+ goto bad_area;
++#endif
++
++ }
+ } else if (!cause) {
+ /* Allow reads even for write-only mappings */
+ if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
+diff -urNp linux-2.6.28.8/arch/arm/include/asm/elf.h linux-2.6.28.8/arch/arm/include/asm/elf.h
+--- linux-2.6.28.8/arch/arm/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/arm/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -99,7 +99,14 @@ extern int arm_elf_read_implies_exec(con
+ the loader. We need to make sure that it is out of the way of the program
+ that it will "exec", and that there is sufficient room for the brk. */
+
+-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
++#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
++
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE 0x00008000UL
++
++#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
++#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
++#endif
+
+ /* When the program starts, a1 contains a pointer to a function to be
+ registered with atexit, as per the SVR4 ABI. A value of 0 means we
+diff -urNp linux-2.6.28.8/arch/arm/include/asm/kmap_types.h linux-2.6.28.8/arch/arm/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/arm/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/arm/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -18,6 +18,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/arm/mm/mmap.c linux-2.6.28.8/arch/arm/mm/mmap.c
+--- linux-2.6.28.8/arch/arm/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/arm/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500
+@@ -62,6 +62,10 @@ arch_get_unmapped_area(struct file *filp
+ if (len > TASK_SIZE)
+ return -ENOMEM;
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ if (addr) {
+ if (do_align)
+ addr = COLOUR_ALIGN(addr, pgoff);
+@@ -74,10 +78,10 @@ arch_get_unmapped_area(struct file *filp
+ return addr;
+ }
+ if (len > mm->cached_hole_size) {
+- start_addr = addr = mm->free_area_cache;
++ start_addr = addr = mm->free_area_cache;
+ } else {
+- start_addr = addr = TASK_UNMAPPED_BASE;
+- mm->cached_hole_size = 0;
++ start_addr = addr = mm->mmap_base;
++ mm->cached_hole_size = 0;
+ }
+
+ full_search:
+@@ -93,8 +97,8 @@ full_search:
+ * Start a new search - just in case we missed
+ * some holes.
+ */
+- if (start_addr != TASK_UNMAPPED_BASE) {
+- start_addr = addr = TASK_UNMAPPED_BASE;
++ if (start_addr != mm->mmap_base) {
++ start_addr = addr = mm->mmap_base;
+ mm->cached_hole_size = 0;
+ goto full_search;
+ }
+diff -urNp linux-2.6.28.8/arch/avr32/include/asm/elf.h linux-2.6.28.8/arch/avr32/include/asm/elf.h
+--- linux-2.6.28.8/arch/avr32/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/avr32/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -85,8 +85,14 @@ typedef struct user_fpu_struct elf_fpreg
+ the loader. We need to make sure that it is out of the way of the program
+ that it will "exec", and that there is sufficient room for the brk. */
+
+-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
++#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE 0x00001000UL
++
++#define PAX_DELTA_MMAP_LEN 15
++#define PAX_DELTA_STACK_LEN 15
++#endif
+
+ /* This yields a mask that user programs can use to figure out what
+ instruction set this CPU supports. This could be done in user space,
+diff -urNp linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -22,7 +22,8 @@ D(10) KM_IRQ0,
+ D(11) KM_IRQ1,
+ D(12) KM_SOFTIRQ0,
+ D(13) KM_SOFTIRQ1,
+-D(14) KM_TYPE_NR
++D(14) KM_CLEARPAGE,
++D(15) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/arch/avr32/mm/fault.c linux-2.6.28.8/arch/avr32/mm/fault.c
+--- linux-2.6.28.8/arch/avr32/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/avr32/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -41,6 +41,23 @@ static inline int notify_page_fault(stru
+
+ int exception_trace = 1;
+
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_report_insns(void *pc, void *sp)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 20; i++) {
++ unsigned char c;
++ if (get_user(c, (unsigned char *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%02x ", c);
++ }
++ printk("\n");
++}
++#endif
++
+ /*
+ * This routine handles page faults. It determines the address and the
+ * problem, and then passes it off to one of the appropriate routines.
+@@ -157,6 +174,16 @@ bad_area:
+ up_read(&mm->mmap_sem);
+
+ if (user_mode(regs)) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
++ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
++ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
++ do_group_exit(SIGKILL);
++ }
++ }
++#endif
++
+ if (exception_trace && printk_ratelimit())
+ printk("%s%s[%d]: segfault at %08lx pc %08lx "
+ "sp %08lx ecr %lu\n",
+diff -urNp linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -15,6 +15,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/cris/include/asm/kmap_types.h linux-2.6.28.8/arch/cris/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/cris/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/cris/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -19,6 +19,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -15,6 +15,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c
+--- linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -45,6 +45,13 @@ randomize_stack_top(unsigned long stack_
+
+ #define elf_read_implies_exec(ex, have_pt_gnu_stack) (!(have_pt_gnu_stack))
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
++
++#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
++#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
++#endif
++
+ /* Ugly but avoids duplication */
+ #include "../../../fs/binfmt_elf.c"
+
+diff -urNp linux-2.6.28.8/arch/ia64/ia32/ia32priv.h linux-2.6.28.8/arch/ia64/ia32/ia32priv.h
+--- linux-2.6.28.8/arch/ia64/ia32/ia32priv.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/ia32/ia32priv.h 2009-02-21 09:37:48.000000000 -0500
+@@ -296,7 +296,14 @@ typedef struct compat_siginfo {
+ #define ELF_DATA ELFDATA2LSB
+ #define ELF_ARCH EM_386
+
+-#define IA32_STACK_TOP IA32_PAGE_OFFSET
++#ifdef CONFIG_PAX_RANDUSTACK
++#define __IA32_DELTA_STACK (current->mm->delta_stack)
++#else
++#define __IA32_DELTA_STACK 0UL
++#endif
++
++#define IA32_STACK_TOP (IA32_PAGE_OFFSET - __IA32_DELTA_STACK)
++
+ #define IA32_GATE_OFFSET IA32_PAGE_OFFSET
+ #define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE
+
+diff -urNp linux-2.6.28.8/arch/ia64/include/asm/elf.h linux-2.6.28.8/arch/ia64/include/asm/elf.h
+--- linux-2.6.28.8/arch/ia64/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -43,6 +43,13 @@
+ */
+ #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
++
++#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
++#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
++#endif
++
+ #define PT_IA_64_UNWIND 0x70000001
+
+ /* IA-64 relocations: */
+diff -urNp linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -22,7 +22,8 @@ D(9) KM_IRQ0,
+ D(10) KM_IRQ1,
+ D(11) KM_SOFTIRQ0,
+ D(12) KM_SOFTIRQ1,
+-D(13) KM_TYPE_NR
++D(13) KM_CLEARPAGE,
++D(14) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/arch/ia64/include/asm/pgtable.h linux-2.6.28.8/arch/ia64/include/asm/pgtable.h
+--- linux-2.6.28.8/arch/ia64/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
+@@ -143,6 +143,17 @@
+ #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+ #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+ #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
++# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
++# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
++#else
++# define PAGE_SHARED_NOEXEC PAGE_SHARED
++# define PAGE_READONLY_NOEXEC PAGE_READONLY
++# define PAGE_COPY_NOEXEC PAGE_COPY
++#endif
++
+ #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
+ #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX)
+ #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
+diff -urNp linux-2.6.28.8/arch/ia64/kernel/module.c linux-2.6.28.8/arch/ia64/kernel/module.c
+--- linux-2.6.28.8/arch/ia64/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
+@@ -312,8 +312,7 @@ module_alloc (unsigned long size)
+ void
+ module_free (struct module *mod, void *module_region)
+ {
+- if (mod && mod->arch.init_unw_table &&
+- module_region == mod->module_init) {
++ if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) {
+ unw_remove_unwind_table(mod->arch.init_unw_table);
+ mod->arch.init_unw_table = NULL;
+ }
+@@ -491,15 +490,39 @@ module_frob_arch_sections (Elf_Ehdr *ehd
+ }
+
+ static inline int
++in_init_rx (const struct module *mod, uint64_t addr)
++{
++ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx;
++}
++
++static inline int
++in_init_rw (const struct module *mod, uint64_t addr)
++{
++ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw;
++}
++
++static inline int
+ in_init (const struct module *mod, uint64_t addr)
+ {
+- return addr - (uint64_t) mod->module_init < mod->init_size;
++ return in_init_rx(mod, addr) || in_init_rw(mod, addr);
++}
++
++static inline int
++in_core_rx (const struct module *mod, uint64_t addr)
++{
++ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx;
++}
++
++static inline int
++in_core_rw (const struct module *mod, uint64_t addr)
++{
++ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw;
+ }
+
+ static inline int
+ in_core (const struct module *mod, uint64_t addr)
+ {
+- return addr - (uint64_t) mod->module_core < mod->core_size;
++ return in_core_rx(mod, addr) || in_core_rw(mod, addr);
+ }
+
+ static inline int
+@@ -683,7 +706,14 @@ do_reloc (struct module *mod, uint8_t r_
+ break;
+
+ case RV_BDREL:
+- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
++ if (in_init_rx(mod, val))
++ val -= (uint64_t) mod->module_init_rx;
++ else if (in_init_rw(mod, val))
++ val -= (uint64_t) mod->module_init_rw;
++ else if (in_core_rx(mod, val))
++ val -= (uint64_t) mod->module_core_rx;
++ else if (in_core_rw(mod, val))
++ val -= (uint64_t) mod->module_core_rw;
+ break;
+
+ case RV_LTV:
+@@ -817,15 +847,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs,
+ * addresses have been selected...
+ */
+ uint64_t gp;
+- if (mod->core_size > MAX_LTOFF)
++ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF)
+ /*
+ * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
+ * at the end of the module.
+ */
+- gp = mod->core_size - MAX_LTOFF / 2;
++ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2;
+ else
+- gp = mod->core_size / 2;
+- gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
++ gp = (mod->core_size_rx + mod->core_size_rw) / 2;
++ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8);
+ mod->arch.gp = gp;
+ DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
+ }
+diff -urNp linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c
+--- linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *fil
+ if (REGION_NUMBER(addr) == RGN_HPAGE)
+ addr = 0;
+ #endif
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ addr = mm->free_area_cache;
++ else
++#endif
++
+ if (!addr)
+ addr = mm->free_area_cache;
+
+@@ -61,9 +68,9 @@ arch_get_unmapped_area (struct file *fil
+ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
+ /* At this point: (!vma || addr < vma->vm_end). */
+ if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) {
+- if (start_addr != TASK_UNMAPPED_BASE) {
++ if (start_addr != mm->mmap_base) {
+ /* Start a new search --- just in case we missed some holes. */
+- addr = TASK_UNMAPPED_BASE;
++ addr = mm->mmap_base;
+ goto full_search;
+ }
+ return -ENOMEM;
+diff -urNp linux-2.6.28.8/arch/ia64/mm/fault.c linux-2.6.28.8/arch/ia64/mm/fault.c
+--- linux-2.6.28.8/arch/ia64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned
+ return pte_present(pte);
+ }
+
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_report_insns(void *pc, void *sp)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 8; i++) {
++ unsigned int c;
++ if (get_user(c, (unsigned int *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%08x ", c);
++ }
++ printk("\n");
++}
++#endif
++
+ void __kprobes
+ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs)
+ {
+@@ -145,9 +162,23 @@ ia64_do_page_fault (unsigned long addres
+ mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
+ | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT));
+
+- if ((vma->vm_flags & mask) != mask)
++ if ((vma->vm_flags & mask) != mask) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
++ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
++ goto bad_area;
++
++ up_read(&mm->mmap_sem);
++ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
++ do_group_exit(SIGKILL);
++ }
++#endif
++
+ goto bad_area;
+
++ }
++
+ survive:
+ /*
+ * If for any reason at all we couldn't handle the fault, make
+diff -urNp linux-2.6.28.8/arch/ia64/mm/init.c linux-2.6.28.8/arch/ia64/mm/init.c
+--- linux-2.6.28.8/arch/ia64/mm/init.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/ia64/mm/init.c 2009-02-21 09:37:48.000000000 -0500
+@@ -121,6 +121,19 @@ ia64_init_addr_space (void)
+ vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
+ vma->vm_end = vma->vm_start + PAGE_SIZE;
+ vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
++ vma->vm_flags &= ~VM_EXEC;
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (current->mm->pax_flags & MF_PAX_MPROTECT)
++ vma->vm_flags &= ~VM_MAYEXEC;
++#endif
++
++ }
++#endif
++
+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+ down_write(¤t->mm->mmap_sem);
+ if (insert_vm_struct(current->mm, vma)) {
+diff -urNp linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -15,6 +15,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/mips/include/asm/elf.h linux-2.6.28.8/arch/mips/include/asm/elf.h
+--- linux-2.6.28.8/arch/mips/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -364,4 +364,11 @@ extern int dump_task_fpu(struct task_str
+ #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
+ #endif
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL)
++
++#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#endif
++
+ #endif /* _ASM_ELF_H */
+diff -urNp linux-2.6.28.8/arch/mips/include/asm/kmap_types.h linux-2.6.28.8/arch/mips/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/mips/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -22,7 +22,8 @@ D(9) KM_IRQ0,
+ D(10) KM_IRQ1,
+ D(11) KM_SOFTIRQ0,
+ D(12) KM_SOFTIRQ1,
+-D(13) KM_TYPE_NR
++D(13) KM_CLEARPAGE,
++D(14) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/arch/mips/include/asm/page.h linux-2.6.28.8/arch/mips/include/asm/page.h
+--- linux-2.6.28.8/arch/mips/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500
+@@ -82,7 +82,7 @@ extern void copy_user_highpage(struct pa
+ #ifdef CONFIG_CPU_MIPS32
+ typedef struct { unsigned long pte_low, pte_high; } pte_t;
+ #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
+- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
++ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
+ #else
+ typedef struct { unsigned long long pte; } pte_t;
+ #define pte_val(x) ((x).pte)
+diff -urNp linux-2.6.28.8/arch/mips/include/asm/system.h linux-2.6.28.8/arch/mips/include/asm/system.h
+--- linux-2.6.28.8/arch/mips/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500
+@@ -217,6 +217,6 @@ extern void per_cpu_trap_init(void);
+ */
+ #define __ARCH_WANT_UNLOCKED_CTXSW
+
+-extern unsigned long arch_align_stack(unsigned long sp);
++#define arch_align_stack(x) ((x) & ALMASK)
+
+ #endif /* _ASM_SYSTEM_H */
+diff -urNp linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c
+--- linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N
+ #undef ELF_ET_DYN_BASE
+ #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL)
++
++#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#endif
++
+ #include <asm/processor.h>
+ #include <linux/module.h>
+ #include <linux/elfcore.h>
+diff -urNp linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c
+--- linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N
+ #undef ELF_ET_DYN_BASE
+ #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL)
++
++#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#endif
++
+ #include <asm/processor.h>
+ #include <linux/module.h>
+ #include <linux/elfcore.h>
+diff -urNp linux-2.6.28.8/arch/mips/kernel/process.c linux-2.6.28.8/arch/mips/kernel/process.c
+--- linux-2.6.28.8/arch/mips/kernel/process.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/kernel/process.c 2009-02-21 09:37:48.000000000 -0500
+@@ -457,15 +457,3 @@ unsigned long get_wchan(struct task_stru
+ out:
+ return pc;
+ }
+-
+-/*
+- * Don't forget that the stack pointer must be aligned on a 8 bytes
+- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
+- */
+-unsigned long arch_align_stack(unsigned long sp)
+-{
+- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+- sp -= get_random_int() & ~PAGE_MASK;
+-
+- return sp & ALMASK;
+-}
+diff -urNp linux-2.6.28.8/arch/mips/kernel/syscall.c linux-2.6.28.8/arch/mips/kernel/syscall.c
+--- linux-2.6.28.8/arch/mips/kernel/syscall.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/kernel/syscall.c 2009-02-21 09:37:48.000000000 -0500
+@@ -99,6 +99,11 @@ unsigned long arch_get_unmapped_area(str
+ do_color_align = 0;
+ if (filp || (flags & MAP_SHARED))
+ do_color_align = 1;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ if (addr) {
+ if (do_color_align)
+ addr = COLOUR_ALIGN(addr, pgoff);
+@@ -109,7 +114,7 @@ unsigned long arch_get_unmapped_area(str
+ (!vmm || addr + len <= vmm->vm_start))
+ return addr;
+ }
+- addr = TASK_UNMAPPED_BASE;
++ addr = current->mm->mmap_base;
+ if (do_color_align)
+ addr = COLOUR_ALIGN(addr, pgoff);
+ else
+diff -urNp linux-2.6.28.8/arch/mips/mm/fault.c linux-2.6.28.8/arch/mips/mm/fault.c
+--- linux-2.6.28.8/arch/mips/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/mips/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -26,6 +26,23 @@
+ #include <asm/ptrace.h>
+ #include <asm/highmem.h> /* For VMALLOC_END */
+
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_report_insns(void *pc)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 5; i++) {
++ unsigned int c;
++ if (get_user(c, (unsigned int *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%08x ", c);
++ }
++ printk("\n");
++}
++#endif
++
+ /*
+ * This routine handles page faults. It determines the address,
+ * and the problem, and then passes it off to one of the appropriate
+diff -urNp linux-2.6.28.8/arch/parisc/include/asm/elf.h linux-2.6.28.8/arch/parisc/include/asm/elf.h
+--- linux-2.6.28.8/arch/parisc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/parisc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -333,6 +333,13 @@ struct pt_regs; /* forward declaration..
+
+ #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE 0x10000UL
++
++#define PAX_DELTA_MMAP_LEN 16
++#define PAX_DELTA_STACK_LEN 16
++#endif
++
+ /* This yields a mask that user programs can use to figure out what
+ instruction set this CPU supports. This could be done in user space,
+ but it's not easy, and we've already done it here. */
+diff -urNp linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -22,7 +22,8 @@ D(9) KM_IRQ0,
+ D(10) KM_IRQ1,
+ D(11) KM_SOFTIRQ0,
+ D(12) KM_SOFTIRQ1,
+-D(13) KM_TYPE_NR
++D(13) KM_CLEARPAGE,
++D(14) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/arch/parisc/include/asm/pgtable.h linux-2.6.28.8/arch/parisc/include/asm/pgtable.h
+--- linux-2.6.28.8/arch/parisc/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/parisc/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
+@@ -202,6 +202,17 @@
+ #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
+ #define PAGE_COPY PAGE_EXECREAD
+ #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
++# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
++# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
++#else
++# define PAGE_SHARED_NOEXEC PAGE_SHARED
++# define PAGE_COPY_NOEXEC PAGE_COPY
++# define PAGE_READONLY_NOEXEC PAGE_READONLY
++#endif
++
+ #define PAGE_KERNEL __pgprot(_PAGE_KERNEL)
+ #define PAGE_KERNEL_RO __pgprot(_PAGE_KERNEL & ~_PAGE_WRITE)
+ #define PAGE_KERNEL_UNC __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
+diff -urNp linux-2.6.28.8/arch/parisc/kernel/module.c linux-2.6.28.8/arch/parisc/kernel/module.c
+--- linux-2.6.28.8/arch/parisc/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/parisc/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
+@@ -75,16 +75,38 @@
+
+ /* three functions to determine where in the module core
+ * or init pieces the location is */
++static inline int in_init_rx(struct module *me, void *loc)
++{
++ return (loc >= me->module_init_rx &&
++ loc < (me->module_init_rx + me->init_size_rx));
++}
++
++static inline int in_init_rw(struct module *me, void *loc)
++{
++ return (loc >= me->module_init_rw &&
++ loc < (me->module_init_rw + me->init_size_rw));
++}
++
+ static inline int in_init(struct module *me, void *loc)
+ {
+- return (loc >= me->module_init &&
+- loc <= (me->module_init + me->init_size));
++ return in_init_rx(me, loc) || in_init_rw(me, loc);
++}
++
++static inline int in_core_rx(struct module *me, void *loc)
++{
++ return (loc >= me->module_core_rx &&
++ loc < (me->module_core_rx + me->core_size_rx));
++}
++
++static inline int in_core_rw(struct module *me, void *loc)
++{
++ return (loc >= me->module_core_rw &&
++ loc < (me->module_core_rw + me->core_size_rw));
+ }
+
+ static inline int in_core(struct module *me, void *loc)
+ {
+- return (loc >= me->module_core &&
+- loc <= (me->module_core + me->core_size));
++ return in_core_rx(me, loc) || in_core_rw(me, loc);
+ }
+
+ static inline int in_local(struct module *me, void *loc)
+@@ -298,21 +320,21 @@ int module_frob_arch_sections(CONST Elf_
+ }
+
+ /* align things a bit */
+- me->core_size = ALIGN(me->core_size, 16);
+- me->arch.got_offset = me->core_size;
+- me->core_size += gots * sizeof(struct got_entry);
+-
+- me->core_size = ALIGN(me->core_size, 16);
+- me->arch.fdesc_offset = me->core_size;
+- me->core_size += fdescs * sizeof(Elf_Fdesc);
+-
+- me->core_size = ALIGN(me->core_size, 16);
+- me->arch.stub_offset = me->core_size;
+- me->core_size += stubs * sizeof(struct stub_entry);
+-
+- me->init_size = ALIGN(me->init_size, 16);
+- me->arch.init_stub_offset = me->init_size;
+- me->init_size += init_stubs * sizeof(struct stub_entry);
++ me->core_size_rw = ALIGN(me->core_size_rw, 16);
++ me->arch.got_offset = me->core_size_rw;
++ me->core_size_rw += gots * sizeof(struct got_entry);
++
++ me->core_size_rw = ALIGN(me->core_size_rw, 16);
++ me->arch.fdesc_offset = me->core_size_rw;
++ me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
++
++ me->core_size_rx = ALIGN(me->core_size_rx, 16);
++ me->arch.stub_offset = me->core_size_rx;
++ me->core_size_rx += stubs * sizeof(struct stub_entry);
++
++ me->init_size_rx = ALIGN(me->init_size_rx, 16);
++ me->arch.init_stub_offset = me->init_size_rx;
++ me->init_size_rx += init_stubs * sizeof(struct stub_entry);
+
+ me->arch.got_max = gots;
+ me->arch.fdesc_max = fdescs;
+@@ -332,7 +354,7 @@ static Elf64_Word get_got(struct module
+
+ BUG_ON(value == 0);
+
+- got = me->module_core + me->arch.got_offset;
++ got = me->module_core_rw + me->arch.got_offset;
+ for (i = 0; got[i].addr; i++)
+ if (got[i].addr == value)
+ goto out;
+@@ -350,7 +372,7 @@ static Elf64_Word get_got(struct module
+ #ifdef CONFIG_64BIT
+ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
+ {
+- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
++ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
+
+ if (!value) {
+ printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
+@@ -368,7 +390,7 @@ static Elf_Addr get_fdesc(struct module
+
+ /* Create new one */
+ fdesc->addr = value;
+- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
++ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
+ return (Elf_Addr)fdesc;
+ }
+ #endif /* CONFIG_64BIT */
+@@ -388,12 +410,12 @@ static Elf_Addr get_stub(struct module *
+ if(init_section) {
+ i = me->arch.init_stub_count++;
+ BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max);
+- stub = me->module_init + me->arch.init_stub_offset +
++ stub = me->module_init_rx + me->arch.init_stub_offset +
+ i * sizeof(struct stub_entry);
+ } else {
+ i = me->arch.stub_count++;
+ BUG_ON(me->arch.stub_count > me->arch.stub_max);
+- stub = me->module_core + me->arch.stub_offset +
++ stub = me->module_core_rx + me->arch.stub_offset +
+ i * sizeof(struct stub_entry);
+ }
+
+@@ -761,7 +783,7 @@ register_unwind_table(struct module *me,
+
+ table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
+ end = table + sechdrs[me->arch.unwind_section].sh_size;
+- gp = (Elf_Addr)me->module_core + me->arch.got_offset;
++ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
+
+ DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
+ me->arch.unwind_section, table, end, gp);
+diff -urNp linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c
+--- linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c 2009-02-21 09:37:48.000000000 -0500
+@@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(str
+ if (flags & MAP_FIXED)
+ return addr;
+ if (!addr)
+- addr = TASK_UNMAPPED_BASE;
++ addr = current->mm->mmap_base;
+
+ if (filp) {
+ addr = get_shared_area(filp->f_mapping, addr, len, pgoff);
+diff -urNp linux-2.6.28.8/arch/parisc/kernel/traps.c linux-2.6.28.8/arch/parisc/kernel/traps.c
+--- linux-2.6.28.8/arch/parisc/kernel/traps.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/parisc/kernel/traps.c 2009-02-21 09:37:48.000000000 -0500
+@@ -731,9 +731,7 @@ void handle_interruption(int code, struc
+
+ down_read(¤t->mm->mmap_sem);
+ vma = find_vma(current->mm,regs->iaoq[0]);
+- if (vma && (regs->iaoq[0] >= vma->vm_start)
+- && (vma->vm_flags & VM_EXEC)) {
+-
++ if (vma && (regs->iaoq[0] >= vma->vm_start)) {
+ fault_address = regs->iaoq[0];
+ fault_space = regs->iasq[0];
+
+diff -urNp linux-2.6.28.8/arch/parisc/mm/fault.c linux-2.6.28.8/arch/parisc/mm/fault.c
+--- linux-2.6.28.8/arch/parisc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/parisc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -16,6 +16,7 @@
+ #include <linux/sched.h>
+ #include <linux/interrupt.h>
+ #include <linux/module.h>
++#include <linux/unistd.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/traps.h>
+@@ -53,7 +54,7 @@ DEFINE_PER_CPU(struct exception_data, ex
+ static unsigned long
+ parisc_acctyp(unsigned long code, unsigned int inst)
+ {
+- if (code == 6 || code == 16)
++ if (code == 6 || code == 7 || code == 16)
+ return VM_EXEC;
+
+ switch (inst & 0xf0000000) {
+@@ -139,6 +140,116 @@ parisc_acctyp(unsigned long code, unsign
+ }
+ #endif
+
++#ifdef CONFIG_PAX_PAGEEXEC
++/*
++ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
++ *
++ * returns 1 when task should be killed
++ * 2 when rt_sigreturn trampoline was detected
++ * 3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++ int err;
++
++ do { /* PaX: unpatched PLT emulation */
++ unsigned int bl, depwi;
++
++ err = get_user(bl, (unsigned int *)instruction_pointer(regs));
++ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
++
++ if (err)
++ break;
++
++ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
++ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
++
++ err = get_user(ldw, (unsigned int *)addr);
++ err |= get_user(bv, (unsigned int *)(addr+4));
++ err |= get_user(ldw2, (unsigned int *)(addr+8));
++
++ if (err)
++ break;
++
++ if (ldw == 0x0E801096U &&
++ bv == 0xEAC0C000U &&
++ ldw2 == 0x0E881095U)
++ {
++ unsigned int resolver, map;
++
++ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
++ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
++ if (err)
++ break;
++
++ regs->gr[20] = instruction_pointer(regs)+8;
++ regs->gr[21] = map;
++ regs->gr[22] = resolver;
++ regs->iaoq[0] = resolver | 3UL;
++ regs->iaoq[1] = regs->iaoq[0] + 4;
++ return 3;
++ }
++ }
++ } while (0);
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++
++#ifndef CONFIG_PAX_EMUSIGRT
++ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
++ return 1;
++#endif
++
++ do { /* PaX: rt_sigreturn emulation */
++ unsigned int ldi1, ldi2, bel, nop;
++
++ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
++ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
++ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
++ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
++
++ if (err)
++ break;
++
++ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
++ ldi2 == 0x3414015AU &&
++ bel == 0xE4008200U &&
++ nop == 0x08000240U)
++ {
++ regs->gr[25] = (ldi1 & 2) >> 1;
++ regs->gr[20] = __NR_rt_sigreturn;
++ regs->gr[31] = regs->iaoq[1] + 16;
++ regs->sr[0] = regs->iasq[1];
++ regs->iaoq[0] = 0x100UL;
++ regs->iaoq[1] = regs->iaoq[0] + 4;
++ regs->iasq[0] = regs->sr[2];
++ regs->iasq[1] = regs->sr[2];
++ return 2;
++ }
++ } while (0);
++#endif
++
++ return 1;
++}
++
++void pax_report_insns(void *pc, void *sp)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 5; i++) {
++ unsigned int c;
++ if (get_user(c, (unsigned int *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%08x ", c);
++ }
++ printk("\n");
++}
++#endif
++
+ void do_page_fault(struct pt_regs *regs, unsigned long code,
+ unsigned long address)
+ {
+@@ -165,8 +276,33 @@ good_area:
+
+ acc_type = parisc_acctyp(code,regs->iir);
+
+- if ((vma->vm_flags & acc_type) != acc_type)
++ if ((vma->vm_flags & acc_type) != acc_type) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
++ (address & ~3UL) == instruction_pointer(regs))
++ {
++ up_read(&mm->mmap_sem);
++ switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++ case 3:
++ return;
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ case 2:
++ return;
++#endif
++
++ }
++ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
++ do_group_exit(SIGKILL);
++ }
++#endif
++
+ goto bad_area;
++ }
+
+ /*
+ * If for any reason at all we couldn't handle the fault, make
+diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/elf.h linux-2.6.28.8/arch/powerpc/include/asm/elf.h
+--- linux-2.6.28.8/arch/powerpc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -180,6 +180,18 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E
+
+ #define ELF_ET_DYN_BASE (0x20000000)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (0x10000000UL)
++
++#ifdef __powerpc64__
++#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28)
++#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28)
++#else
++#define PAX_DELTA_MMAP_LEN 15
++#define PAX_DELTA_STACK_LEN 15
++#endif
++#endif
++
+ /*
+ * Our registers are always unsigned longs, whether we're a 32 bit
+ * process or 64 bit, on either a 64 bit or 32 bit kernel.
+diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -26,6 +26,7 @@ enum km_type {
+ KM_SOFTIRQ1,
+ KM_PPC_SYNC_PAGE,
+ KM_PPC_SYNC_ICACHE,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/page_64.h linux-2.6.28.8/arch/powerpc/include/asm/page_64.h
+--- linux-2.6.28.8/arch/powerpc/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500
+@@ -170,15 +170,18 @@ do { \
+ * stack by default, so in the absense of a PT_GNU_STACK program header
+ * we turn execute permission off.
+ */
+-#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
+- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
++#define VM_STACK_DEFAULT_FLAGS32 \
++ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
++ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+ #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
++#ifndef CONFIG_PAX_PAGEEXEC
+ #define VM_STACK_DEFAULT_FLAGS \
+ (test_thread_flag(TIF_32BIT) ? \
+ VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
++#endif
+
+ #include <asm-generic/page.h>
+
+diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/page.h linux-2.6.28.8/arch/powerpc/include/asm/page.h
+--- linux-2.6.28.8/arch/powerpc/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500
+@@ -111,8 +111,9 @@ extern phys_addr_t kernstart_addr;
+ * and needs to be executable. This means the whole heap ends
+ * up being executable.
+ */
+-#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
+- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
++#define VM_DATA_DEFAULT_FLAGS32 \
++ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
++ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+ #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+diff -urNp linux-2.6.28.8/arch/powerpc/kernel/module_32.c linux-2.6.28.8/arch/powerpc/kernel/module_32.c
+--- linux-2.6.28.8/arch/powerpc/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -158,7 +158,7 @@ int module_frob_arch_sections(Elf32_Ehdr
+ me->arch.core_plt_section = i;
+ }
+ if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
+- printk("Module doesn't contain .plt or .init.plt sections.\n");
++ printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name);
+ return -ENOEXEC;
+ }
+
+@@ -199,11 +199,16 @@ static uint32_t do_plt_call(void *locati
+
+ DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
+ /* Init, or core PLT? */
+- if (location >= mod->module_core
+- && location < mod->module_core + mod->core_size)
++ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
++ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
+ entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
+- else
++ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
++ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
+ entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
++ else {
++ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
++ return ~0UL;
++ }
+
+ /* Find this entry, or if that fails, the next avail. entry */
+ while (entry->jump[0]) {
+diff -urNp linux-2.6.28.8/arch/powerpc/kernel/signal_32.c linux-2.6.28.8/arch/powerpc/kernel/signal_32.c
+--- linux-2.6.28.8/arch/powerpc/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -857,7 +857,7 @@ int handle_rt_signal32(unsigned long sig
+ /* Save user registers on the stack */
+ frame = &rt_sf->uc.uc_mcontext;
+ addr = frame;
+- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
++ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
+ if (save_user_regs(regs, frame, 0, 1))
+ goto badframe;
+ regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp;
+diff -urNp linux-2.6.28.8/arch/powerpc/kernel/signal_64.c linux-2.6.28.8/arch/powerpc/kernel/signal_64.c
+--- linux-2.6.28.8/arch/powerpc/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -429,7 +429,7 @@ int handle_rt_signal64(int signr, struct
+ current->thread.fpscr.val = 0;
+
+ /* Set up to return from userspace. */
+- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
++ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
+ regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
+ } else {
+ err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
+diff -urNp linux-2.6.28.8/arch/powerpc/kernel/vdso.c linux-2.6.28.8/arch/powerpc/kernel/vdso.c
+--- linux-2.6.28.8/arch/powerpc/kernel/vdso.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/kernel/vdso.c 2009-02-21 09:37:48.000000000 -0500
+@@ -212,7 +212,7 @@ int arch_setup_additional_pages(struct l
+ vdso_base = VDSO32_MBASE;
+ #endif
+
+- current->mm->context.vdso_base = 0;
++ current->mm->context.vdso_base = ~0UL;
+
+ /* vDSO has a problem and was disabled, just don't "enable" it for the
+ * process
+@@ -229,7 +229,7 @@ int arch_setup_additional_pages(struct l
+ */
+ down_write(&mm->mmap_sem);
+ vdso_base = get_unmapped_area(NULL, vdso_base,
+- vdso_pages << PAGE_SHIFT, 0, 0);
++ vdso_pages << PAGE_SHIFT, 0, MAP_PRIVATE | MAP_EXECUTABLE);
+ if (IS_ERR_VALUE(vdso_base)) {
+ rc = vdso_base;
+ goto fail_mmapsem;
+diff -urNp linux-2.6.28.8/arch/powerpc/mm/fault.c linux-2.6.28.8/arch/powerpc/mm/fault.c
+--- linux-2.6.28.8/arch/powerpc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -29,6 +29,10 @@
+ #include <linux/module.h>
+ #include <linux/kprobes.h>
+ #include <linux/kdebug.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
++#include <linux/compiler.h>
++#include <linux/unistd.h>
+
+ #include <asm/page.h>
+ #include <asm/pgtable.h>
+@@ -62,6 +66,363 @@ static inline int notify_page_fault(stru
+ }
+ #endif
+
++#ifdef CONFIG_PAX_EMUSIGRT
++void pax_syscall_close(struct vm_area_struct *vma)
++{
++ vma->vm_mm->call_syscall = 0UL;
++}
++
++static int pax_syscall_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
++{
++ unsigned int *kaddr;
++
++ vmf->page = alloc_page(GFP_HIGHUSER);
++ if (!vmf->page)
++ return VM_FAULT_OOM;
++
++ kaddr = kmap(vmf->page);
++ memset(kaddr, 0, PAGE_SIZE);
++ kaddr[0] = 0x44000002U; /* sc */
++ __flush_dcache_icache(kaddr);
++ kunmap(vmf->page);
++ return VM_FAULT_MAJOR;
++}
++
++static struct vm_operations_struct pax_vm_ops = {
++ .close = pax_syscall_close,
++ .fault = pax_syscall_fault
++};
++
++static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
++{
++ int ret;
++
++ vma->vm_mm = current->mm;
++ vma->vm_start = addr;
++ vma->vm_end = addr + PAGE_SIZE;
++ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
++ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
++ vma->vm_ops = &pax_vm_ops;
++
++ ret = insert_vm_struct(current->mm, vma);
++ if (ret)
++ return ret;
++
++ ++current->mm->total_vm;
++ return 0;
++}
++#endif
++
++#ifdef CONFIG_PAX_PAGEEXEC
++/*
++ * PaX: decide what to do with offenders (regs->nip = fault address)
++ *
++ * returns 1 when task should be killed
++ * 2 when patched GOT trampoline was detected
++ * 3 when patched PLT trampoline was detected
++ * 4 when unpatched PLT trampoline was detected
++ * 5 when sigreturn trampoline was detected
++ * 6 when rt_sigreturn trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#if defined(CONFIG_PAX_EMUPLT) || defined(CONFIG_PAX_EMUSIGRT)
++ int err;
++#endif
++
++#ifdef CONFIG_PAX_EMUPLT
++ do { /* PaX: patched GOT emulation */
++ unsigned int blrl;
++
++ err = get_user(blrl, (unsigned int *)regs->nip);
++
++ if (!err && blrl == 0x4E800021U) {
++ unsigned long temp = regs->nip;
++
++ regs->nip = regs->link & 0xFFFFFFFCUL;
++ regs->link = temp + 4UL;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: patched PLT emulation #1 */
++ unsigned int b;
++
++ err = get_user(b, (unsigned int *)regs->nip);
++
++ if (!err && (b & 0xFC000003U) == 0x48000000U) {
++ regs->nip += (((b | 0xFC000000UL) ^ 0x02000000UL) + 0x02000000UL);
++ return 3;
++ }
++ } while (0);
++
++ do { /* PaX: unpatched PLT emulation #1 */
++ unsigned int li, b;
++
++ err = get_user(li, (unsigned int *)regs->nip);
++ err |= get_user(b, (unsigned int *)(regs->nip+4));
++
++ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) {
++ unsigned int rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr;
++ unsigned long addr = b | 0xFC000000UL;
++
++ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL);
++ err = get_user(rlwinm, (unsigned int *)addr);
++ err |= get_user(add, (unsigned int *)(addr+4));
++ err |= get_user(li2, (unsigned int *)(addr+8));
++ err |= get_user(addis2, (unsigned int *)(addr+12));
++ err |= get_user(mtctr, (unsigned int *)(addr+16));
++ err |= get_user(li3, (unsigned int *)(addr+20));
++ err |= get_user(addis3, (unsigned int *)(addr+24));
++ err |= get_user(bctr, (unsigned int *)(addr+28));
++
++ if (err)
++ break;
++
++ if (rlwinm == 0x556C083CU &&
++ add == 0x7D6C5A14U &&
++ (li2 & 0xFFFF0000U) == 0x39800000U &&
++ (addis2 & 0xFFFF0000U) == 0x3D8C0000U &&
++ mtctr == 0x7D8903A6U &&
++ (li3 & 0xFFFF0000U) == 0x39800000U &&
++ (addis3 & 0xFFFF0000U) == 0x3D8C0000U &&
++ bctr == 0x4E800420U)
++ {
++ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16;
++ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++ regs->ctr += (addis2 & 0xFFFFU) << 16;
++ regs->nip = regs->ctr;
++ return 4;
++ }
++ }
++ } while (0);
++
++#if 0
++ do { /* PaX: unpatched PLT emulation #2 */
++ unsigned int lis, lwzu, b, bctr;
++
++ err = get_user(lis, (unsigned int *)regs->nip);
++ err |= get_user(lwzu, (unsigned int *)(regs->nip+4));
++ err |= get_user(b, (unsigned int *)(regs->nip+8));
++ err |= get_user(bctr, (unsigned int *)(regs->nip+12));
++
++ if (err)
++ break;
++
++ if ((lis & 0xFFFF0000U) == 0x39600000U &&
++ (lwzu & 0xU) == 0xU &&
++ (b & 0xFC000003U) == 0x48000000U &&
++ bctr == 0x4E800420U)
++ {
++ unsigned int addis, addi, rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr;
++ unsigned long addr = b | 0xFC000000UL;
++
++ addr = regs->nip + 12 + ((addr ^ 0x02000000UL) + 0x02000000UL);
++ err = get_user(addis, (unsigned int *)addr);
++ err |= get_user(addi, (unsigned int *)(addr+4));
++ err |= get_user(rlwinm, (unsigned int *)(addr+8));
++ err |= get_user(add, (unsigned int *)(addr+12));
++ err |= get_user(li2, (unsigned int *)(addr+16));
++ err |= get_user(addis2, (unsigned int *)(addr+20));
++ err |= get_user(mtctr, (unsigned int *)(addr+24));
++ err |= get_user(li3, (unsigned int *)(addr+28));
++ err |= get_user(addis3, (unsigned int *)(addr+32));
++ err |= get_user(bctr, (unsigned int *)(addr+36));
++
++ if (err)
++ break;
++
++ if ((addis & 0xFFFF0000U) == 0x3D6B0000U &&
++ (addi & 0xFFFF0000U) == 0x396B0000U &&
++ rlwinm == 0x556C083CU &&
++ add == 0x7D6C5A14U &&
++ (li2 & 0xFFFF0000U) == 0x39800000U &&
++ (addis2 & 0xFFFF0000U) == 0x3D8C0000U &&
++ mtctr == 0x7D8903A6U &&
++ (li3 & 0xFFFF0000U) == 0x39800000U &&
++ (addis3 & 0xFFFF0000U) == 0x3D8C0000U &&
++ bctr == 0x4E800420U)
++ {
++ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16;
++ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++ regs->ctr += (addis2 & 0xFFFFU) << 16;
++ regs->nip = regs->ctr;
++ return 4;
++ }
++ }
++ } while (0);
++#endif
++
++ do { /* PaX: unpatched PLT emulation #3 */
++ unsigned int li, b;
++
++ err = get_user(li, (unsigned int *)regs->nip);
++ err |= get_user(b, (unsigned int *)(regs->nip+4));
++
++ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) {
++ unsigned int addis, lwz, mtctr, bctr;
++ unsigned long addr = b | 0xFC000000UL;
++
++ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL);
++ err = get_user(addis, (unsigned int *)addr);
++ err |= get_user(lwz, (unsigned int *)(addr+4));
++ err |= get_user(mtctr, (unsigned int *)(addr+8));
++ err |= get_user(bctr, (unsigned int *)(addr+12));
++
++ if (err)
++ break;
++
++ if ((addis & 0xFFFF0000U) == 0x3D6B0000U &&
++ (lwz & 0xFFFF0000U) == 0x816B0000U &&
++ mtctr == 0x7D6903A6U &&
++ bctr == 0x4E800420U)
++ {
++ unsigned int r11;
++
++ addr = (addis << 16) + (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++ addr += (((lwz | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL);
++
++ err = get_user(r11, (unsigned int *)addr);
++ if (err)
++ break;
++
++ regs->gpr[PT_R11] = r11;
++ regs->ctr = r11;
++ regs->nip = r11;
++ return 4;
++ }
++ }
++ } while (0);
++#endif
++
++#ifdef CONFIG_PAX_EMUSIGRT
++ do { /* PaX: sigreturn emulation */
++ unsigned int li, sc;
++
++ err = get_user(li, (unsigned int *)regs->nip);
++ err |= get_user(sc, (unsigned int *)(regs->nip+4));
++
++ if (!err && li == 0x38000000U + __NR_sigreturn && sc == 0x44000002U) {
++ struct vm_area_struct *vma;
++ unsigned long call_syscall;
++
++ down_read(¤t->mm->mmap_sem);
++ call_syscall = current->mm->call_syscall;
++ up_read(¤t->mm->mmap_sem);
++ if (likely(call_syscall))
++ goto emulate;
++
++ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++
++ down_write(¤t->mm->mmap_sem);
++ if (current->mm->call_syscall) {
++ call_syscall = current->mm->call_syscall;
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ goto emulate;
++ }
++
++ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
++ if (!vma || (call_syscall & ~PAGE_MASK)) {
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ if (pax_insert_vma(vma, call_syscall)) {
++ up_write(¤t->mm->mmap_sem);
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ current->mm->call_syscall = call_syscall;
++ up_write(¤t->mm->mmap_sem);
++
++emulate:
++ regs->gpr[PT_R0] = __NR_sigreturn;
++ regs->nip = call_syscall;
++ return 5;
++ }
++ } while (0);
++
++ do { /* PaX: rt_sigreturn emulation */
++ unsigned int li, sc;
++
++ err = get_user(li, (unsigned int *)regs->nip);
++ err |= get_user(sc, (unsigned int *)(regs->nip+4));
++
++ if (!err && li == 0x38000000U + __NR_rt_sigreturn && sc == 0x44000002U) {
++ struct vm_area_struct *vma;
++ unsigned int call_syscall;
++
++ down_read(¤t->mm->mmap_sem);
++ call_syscall = current->mm->call_syscall;
++ up_read(¤t->mm->mmap_sem);
++ if (likely(call_syscall))
++ goto rt_emulate;
++
++ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++
++ down_write(¤t->mm->mmap_sem);
++ if (current->mm->call_syscall) {
++ call_syscall = current->mm->call_syscall;
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ goto rt_emulate;
++ }
++
++ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
++ if (!vma || (call_syscall & ~PAGE_MASK)) {
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ if (pax_insert_vma(vma, call_syscall)) {
++ up_write(¤t->mm->mmap_sem);
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ current->mm->call_syscall = call_syscall;
++ up_write(¤t->mm->mmap_sem);
++
++rt_emulate:
++ regs->gpr[PT_R0] = __NR_rt_sigreturn;
++ regs->nip = call_syscall;
++ return 6;
++ }
++ } while (0);
++#endif
++
++ return 1;
++}
++
++void pax_report_insns(void *pc, void *sp)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 5; i++) {
++ unsigned int c;
++ if (get_user(c, (unsigned int *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%08x ", c);
++ }
++ printk("\n");
++}
++#endif
++
+ /*
+ * Check whether the instruction at regs->nip is a store using
+ * an update addressing form which will update r1.
+@@ -132,7 +493,7 @@ int __kprobes do_page_fault(struct pt_re
+ * indicate errors in DSISR but can validly be set in SRR1.
+ */
+ if (trap == 0x400)
+- error_code &= 0x48200000;
++ error_code &= 0x58200000;
+ else
+ is_write = error_code & DSISR_ISSTORE;
+ #else
+@@ -331,6 +692,37 @@ bad_area:
+ bad_area_nosemaphore:
+ /* User mode accesses cause a SIGSEGV */
+ if (user_mode(regs)) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
++#ifdef CONFIG_PPC64
++ if (is_exec && (error_code & DSISR_PROTFAULT)) {
++#else
++ if (is_exec && regs->nip == address) {
++#endif
++ switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++ case 2:
++ case 3:
++ case 4:
++ return 0;
++#endif
++
++#ifdef CONFIG_PAX_EMUSIGRT
++ case 5:
++ case 6:
++ return 0;
++#endif
++
++ }
++
++ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
++ do_group_exit(SIGKILL);
++ }
++ }
++#endif
++
+ _exception(SIGSEGV, regs, code, address);
+ return 0;
+ }
+diff -urNp linux-2.6.28.8/arch/powerpc/mm/mmap.c linux-2.6.28.8/arch/powerpc/mm/mmap.c
+--- linux-2.6.28.8/arch/powerpc/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/powerpc/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500
+@@ -75,10 +75,22 @@ void arch_pick_mmap_layout(struct mm_str
+ */
+ if (mmap_is_legacy()) {
+ mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
+ mm->get_unmapped_area = arch_get_unmapped_area;
+ mm->unmap_area = arch_unmap_area;
+ } else {
+ mm->mmap_base = mmap_base();
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ mm->unmap_area = arch_unmap_area_topdown;
+ }
+diff -urNp linux-2.6.28.8/arch/s390/include/asm/kmap_types.h linux-2.6.28.8/arch/s390/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/s390/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/s390/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -16,6 +16,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/s390/kernel/module.c linux-2.6.28.8/arch/s390/kernel/module.c
+--- linux-2.6.28.8/arch/s390/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/s390/kernel/module.c 2009-02-21 09:37:48.000000000 -0500
+@@ -166,11 +166,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr,
+
+ /* Increase core size by size of got & plt and set start
+ offsets for got and plt. */
+- me->core_size = ALIGN(me->core_size, 4);
+- me->arch.got_offset = me->core_size;
+- me->core_size += me->arch.got_size;
+- me->arch.plt_offset = me->core_size;
+- me->core_size += me->arch.plt_size;
++ me->core_size_rw = ALIGN(me->core_size_rw, 4);
++ me->arch.got_offset = me->core_size_rw;
++ me->core_size_rw += me->arch.got_size;
++ me->arch.plt_offset = me->core_size_rx;
++ me->core_size_rx += me->arch.plt_size;
+ return 0;
+ }
+
+@@ -256,7 +256,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
+ if (info->got_initialized == 0) {
+ Elf_Addr *gotent;
+
+- gotent = me->module_core + me->arch.got_offset +
++ gotent = me->module_core_rw + me->arch.got_offset +
+ info->got_offset;
+ *gotent = val;
+ info->got_initialized = 1;
+@@ -280,7 +280,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
+ else if (r_type == R_390_GOTENT ||
+ r_type == R_390_GOTPLTENT)
+ *(unsigned int *) loc =
+- (val + (Elf_Addr) me->module_core - loc) >> 1;
++ (val + (Elf_Addr) me->module_core_rw - loc) >> 1;
+ else if (r_type == R_390_GOT64 ||
+ r_type == R_390_GOTPLT64)
+ *(unsigned long *) loc = val;
+@@ -294,7 +294,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
+ case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */
+ if (info->plt_initialized == 0) {
+ unsigned int *ip;
+- ip = me->module_core + me->arch.plt_offset +
++ ip = me->module_core_rx + me->arch.plt_offset +
+ info->plt_offset;
+ #ifndef CONFIG_64BIT
+ ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
+@@ -316,7 +316,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
+ val = me->arch.plt_offset - me->arch.got_offset +
+ info->plt_offset + rela->r_addend;
+ else
+- val = (Elf_Addr) me->module_core +
++ val = (Elf_Addr) me->module_core_rx +
+ me->arch.plt_offset + info->plt_offset +
+ rela->r_addend - loc;
+ if (r_type == R_390_PLT16DBL)
+@@ -336,7 +336,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
+ case R_390_GOTOFF32: /* 32 bit offset to GOT. */
+ case R_390_GOTOFF64: /* 64 bit offset to GOT. */
+ val = val + rela->r_addend -
+- ((Elf_Addr) me->module_core + me->arch.got_offset);
++ ((Elf_Addr) me->module_core_rw + me->arch.got_offset);
+ if (r_type == R_390_GOTOFF16)
+ *(unsigned short *) loc = val;
+ else if (r_type == R_390_GOTOFF32)
+@@ -346,7 +346,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base
+ break;
+ case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
+ case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
+- val = (Elf_Addr) me->module_core + me->arch.got_offset +
++ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
+ rela->r_addend - loc;
+ if (r_type == R_390_GOTPC)
+ *(unsigned int *) loc = val;
+diff -urNp linux-2.6.28.8/arch/sh/include/asm/kmap_types.h linux-2.6.28.8/arch/sh/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/sh/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sh/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -24,7 +24,8 @@ D(9) KM_IRQ0,
+ D(10) KM_IRQ1,
+ D(11) KM_SOFTIRQ0,
+ D(12) KM_SOFTIRQ1,
+-D(13) KM_TYPE_NR
++D(13) KM_CLEARPAGE,
++D(14) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/arch/sparc/include/asm/elf_32.h linux-2.6.28.8/arch/sparc/include/asm/elf_32.h
+--- linux-2.6.28.8/arch/sparc/include/asm/elf_32.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/include/asm/elf_32.h 2009-02-21 09:37:48.000000000 -0500
+@@ -116,6 +116,13 @@ typedef struct {
+
+ #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE 0x10000UL
++
++#define PAX_DELTA_MMAP_LEN 16
++#define PAX_DELTA_STACK_LEN 16
++#endif
++
+ /* This yields a mask that user programs can use to figure out what
+ instruction set this cpu supports. This can NOT be done in userspace
+ on Sparc. */
+diff -urNp linux-2.6.28.8/arch/sparc/include/asm/elf_64.h linux-2.6.28.8/arch/sparc/include/asm/elf_64.h
+--- linux-2.6.28.8/arch/sparc/include/asm/elf_64.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/include/asm/elf_64.h 2009-02-21 09:37:48.000000000 -0500
+@@ -163,6 +163,12 @@ typedef struct {
+ #define ELF_ET_DYN_BASE 0x0000010000000000UL
+ #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
+
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
++
++#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28 )
++#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29 )
++#endif
+
+ /* This yields a mask that user programs can use to figure out what
+ instruction set this cpu supports. */
+diff -urNp linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -19,6 +19,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h
+--- linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500
+@@ -43,6 +43,13 @@ BTFIXUPDEF_SIMM13(user_ptrs_per_pgd)
+ BTFIXUPDEF_INT(page_none)
+ BTFIXUPDEF_INT(page_copy)
+ BTFIXUPDEF_INT(page_readonly)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++BTFIXUPDEF_INT(page_shared_noexec)
++BTFIXUPDEF_INT(page_copy_noexec)
++BTFIXUPDEF_INT(page_readonly_noexec)
++#endif
++
+ BTFIXUPDEF_INT(page_kernel)
+
+ #define PMD_SHIFT SUN4C_PMD_SHIFT
+@@ -64,6 +71,16 @@ extern pgprot_t PAGE_SHARED;
+ #define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy))
+ #define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly))
+
++#ifdef CONFIG_PAX_PAGEEXEC
++extern pgprot_t PAGE_SHARED_NOEXEC;
++# define PAGE_COPY_NOEXEC __pgprot(BTFIXUP_INT(page_copy_noexec))
++# define PAGE_READONLY_NOEXEC __pgprot(BTFIXUP_INT(page_readonly_noexec))
++#else
++# define PAGE_SHARED_NOEXEC PAGE_SHARED
++# define PAGE_COPY_NOEXEC PAGE_COPY
++# define PAGE_READONLY_NOEXEC PAGE_READONLY
++#endif
++
+ extern unsigned long page_kernel;
+
+ #ifdef MODULE
+diff -urNp linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h
+--- linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h 2009-02-21 09:37:48.000000000 -0500
+@@ -115,6 +115,13 @@
+ SRMMU_EXEC | SRMMU_REF)
+ #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \
+ SRMMU_EXEC | SRMMU_REF)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
++#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
++#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
++#endif
++
+ #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
+ SRMMU_DIRTY | SRMMU_REF)
+
+diff -urNp linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c
+--- linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500
+@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(str
+ if (ARCH_SUN4C && len > 0x20000000)
+ return -ENOMEM;
+ if (!addr)
+- addr = TASK_UNMAPPED_BASE;
++ addr = current->mm->mmap_base;
+
+ if (flags & MAP_SHARED)
+ addr = COLOUR_ALIGN(addr);
+diff -urNp linux-2.6.28.8/arch/sparc/Makefile linux-2.6.28.8/arch/sparc/Makefile
+--- linux-2.6.28.8/arch/sparc/Makefile 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/Makefile 2009-02-21 09:37:48.000000000 -0500
+@@ -37,7 +37,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc
+ # Renaming is done to avoid confusing pattern matching rules in 2.5.45 (multy-)
+ INIT_Y := $(patsubst %/, %/built-in.o, $(init-y))
+ CORE_Y := $(core-y)
+-CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
++CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
+ CORE_Y := $(patsubst %/, %/built-in.o, $(CORE_Y))
+ DRIVERS_Y := $(patsubst %/, %/built-in.o, $(drivers-y))
+ NET_Y := $(patsubst %/, %/built-in.o, $(net-y))
+diff -urNp linux-2.6.28.8/arch/sparc/mm/fault.c linux-2.6.28.8/arch/sparc/mm/fault.c
+--- linux-2.6.28.8/arch/sparc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -21,6 +21,9 @@
+ #include <linux/interrupt.h>
+ #include <linux/module.h>
+ #include <linux/kdebug.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
++#include <linux/compiler.h>
+
+ #include <asm/system.h>
+ #include <asm/page.h>
+@@ -167,6 +170,249 @@ static unsigned long compute_si_addr(str
+ return safe_compute_effective_address(regs, insn);
+ }
+
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_emuplt_close(struct vm_area_struct *vma)
++{
++ vma->vm_mm->call_dl_resolve = 0UL;
++}
++
++static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
++{
++ unsigned int *kaddr;
++
++ vmf->page = alloc_page(GFP_HIGHUSER);
++ if (!vmf->page)
++ return VM_FAULT_OOM;
++
++ kaddr = kmap(vmf->page);
++ memset(kaddr, 0, PAGE_SIZE);
++ kaddr[0] = 0x9DE3BFA8U; /* save */
++ flush_dcache_page(vmf->page);
++ kunmap(vmf->page);
++ return VM_FAULT_MAJOR;
++}
++
++static struct vm_operations_struct pax_vm_ops = {
++ .close = pax_emuplt_close,
++ .fault = pax_emuplt_fault
++};
++
++static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
++{
++ int ret;
++
++ vma->vm_mm = current->mm;
++ vma->vm_start = addr;
++ vma->vm_end = addr + PAGE_SIZE;
++ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
++ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
++ vma->vm_ops = &pax_vm_ops;
++
++ ret = insert_vm_struct(current->mm, vma);
++ if (ret)
++ return ret;
++
++ ++current->mm->total_vm;
++ return 0;
++}
++
++/*
++ * PaX: decide what to do with offenders (regs->pc = fault address)
++ *
++ * returns 1 when task should be killed
++ * 2 when patched PLT trampoline was detected
++ * 3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++ int err;
++
++ do { /* PaX: patched PLT emulation #1 */
++ unsigned int sethi1, sethi2, jmpl;
++
++ err = get_user(sethi1, (unsigned int *)regs->pc);
++ err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
++ err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
++
++ if (err)
++ break;
++
++ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
++ (sethi2 & 0xFFC00000U) == 0x03000000U &&
++ (jmpl & 0xFFFFE000U) == 0x81C06000U)
++ {
++ unsigned int addr;
++
++ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
++ addr = regs->u_regs[UREG_G1];
++ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
++ regs->pc = addr;
++ regs->npc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ { /* PaX: patched PLT emulation #2 */
++ unsigned int ba;
++
++ err = get_user(ba, (unsigned int *)regs->pc);
++
++ if (!err && (ba & 0xFFC00000U) == 0x30800000U) {
++ unsigned int addr;
++
++ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
++ regs->pc = addr;
++ regs->npc = addr+4;
++ return 2;
++ }
++ }
++
++ do { /* PaX: patched PLT emulation #3 */
++ unsigned int sethi, jmpl, nop;
++
++ err = get_user(sethi, (unsigned int *)regs->pc);
++ err |= get_user(jmpl, (unsigned int *)(regs->pc+4));
++ err |= get_user(nop, (unsigned int *)(regs->pc+8));
++
++ if (err)
++ break;
++
++ if ((sethi & 0xFFC00000U) == 0x03000000U &&
++ (jmpl & 0xFFFFE000U) == 0x81C06000U &&
++ nop == 0x01000000U)
++ {
++ unsigned int addr;
++
++ addr = (sethi & 0x003FFFFFU) << 10;
++ regs->u_regs[UREG_G1] = addr;
++ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
++ regs->pc = addr;
++ regs->npc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: unpatched PLT emulation step 1 */
++ unsigned int sethi, ba, nop;
++
++ err = get_user(sethi, (unsigned int *)regs->pc);
++ err |= get_user(ba, (unsigned int *)(regs->pc+4));
++ err |= get_user(nop, (unsigned int *)(regs->pc+8));
++
++ if (err)
++ break;
++
++ if ((sethi & 0xFFC00000U) == 0x03000000U &&
++ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
++ nop == 0x01000000U)
++ {
++ unsigned int addr, save, call;
++
++ if ((ba & 0xFFC00000U) == 0x30800000U)
++ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
++ else
++ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
++
++ err = get_user(save, (unsigned int *)addr);
++ err |= get_user(call, (unsigned int *)(addr+4));
++ err |= get_user(nop, (unsigned int *)(addr+8));
++ if (err)
++ break;
++
++ if (save == 0x9DE3BFA8U &&
++ (call & 0xC0000000U) == 0x40000000U &&
++ nop == 0x01000000U)
++ {
++ struct vm_area_struct *vma;
++ unsigned long call_dl_resolve;
++
++ down_read(¤t->mm->mmap_sem);
++ call_dl_resolve = current->mm->call_dl_resolve;
++ up_read(¤t->mm->mmap_sem);
++ if (likely(call_dl_resolve))
++ goto emulate;
++
++ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++
++ down_write(¤t->mm->mmap_sem);
++ if (current->mm->call_dl_resolve) {
++ call_dl_resolve = current->mm->call_dl_resolve;
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ goto emulate;
++ }
++
++ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
++ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ if (pax_insert_vma(vma, call_dl_resolve)) {
++ up_write(¤t->mm->mmap_sem);
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ current->mm->call_dl_resolve = call_dl_resolve;
++ up_write(¤t->mm->mmap_sem);
++
++emulate:
++ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
++ regs->pc = call_dl_resolve;
++ regs->npc = addr+4;
++ return 3;
++ }
++ }
++ } while (0);
++
++ do { /* PaX: unpatched PLT emulation step 2 */
++ unsigned int save, call, nop;
++
++ err = get_user(save, (unsigned int *)(regs->pc-4));
++ err |= get_user(call, (unsigned int *)regs->pc);
++ err |= get_user(nop, (unsigned int *)(regs->pc+4));
++ if (err)
++ break;
++
++ if (save == 0x9DE3BFA8U &&
++ (call & 0xC0000000U) == 0x40000000U &&
++ nop == 0x01000000U)
++ {
++ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
++
++ regs->u_regs[UREG_RETPC] = regs->pc;
++ regs->pc = dl_resolve;
++ regs->npc = dl_resolve+4;
++ return 3;
++ }
++ } while (0);
++#endif
++
++ return 1;
++}
++
++void pax_report_insns(void *pc, void *sp)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 5; i++) {
++ unsigned int c;
++ if (get_user(c, (unsigned int *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%08x ", c);
++ }
++ printk("\n");
++}
++#endif
++
+ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
+ unsigned long address)
+ {
+@@ -231,6 +477,24 @@ good_area:
+ if(!(vma->vm_flags & VM_WRITE))
+ goto bad_area;
+ } else {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
++ up_read(&mm->mmap_sem);
++ switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++ case 2:
++ case 3:
++ return;
++#endif
++
++ }
++ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
++ do_group_exit(SIGKILL);
++ }
++#endif
++
+ /* Allow reads even for write-only mappings */
+ if(!(vma->vm_flags & (VM_READ | VM_EXEC)))
+ goto bad_area;
+diff -urNp linux-2.6.28.8/arch/sparc/mm/init.c linux-2.6.28.8/arch/sparc/mm/init.c
+--- linux-2.6.28.8/arch/sparc/mm/init.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/mm/init.c 2009-02-21 09:37:48.000000000 -0500
+@@ -313,6 +313,9 @@ extern void device_scan(void);
+ pgprot_t PAGE_SHARED __read_mostly;
+ EXPORT_SYMBOL(PAGE_SHARED);
+
++pgprot_t PAGE_SHARED_NOEXEC __read_mostly;
++EXPORT_SYMBOL(PAGE_SHARED_NOEXEC);
++
+ void __init paging_init(void)
+ {
+ switch(sparc_cpu_model) {
+@@ -338,17 +341,17 @@ void __init paging_init(void)
+
+ /* Initialize the protection map with non-constant, MMU dependent values. */
+ protection_map[0] = PAGE_NONE;
+- protection_map[1] = PAGE_READONLY;
+- protection_map[2] = PAGE_COPY;
+- protection_map[3] = PAGE_COPY;
++ protection_map[1] = PAGE_READONLY_NOEXEC;
++ protection_map[2] = PAGE_COPY_NOEXEC;
++ protection_map[3] = PAGE_COPY_NOEXEC;
+ protection_map[4] = PAGE_READONLY;
+ protection_map[5] = PAGE_READONLY;
+ protection_map[6] = PAGE_COPY;
+ protection_map[7] = PAGE_COPY;
+ protection_map[8] = PAGE_NONE;
+- protection_map[9] = PAGE_READONLY;
+- protection_map[10] = PAGE_SHARED;
+- protection_map[11] = PAGE_SHARED;
++ protection_map[9] = PAGE_READONLY_NOEXEC;
++ protection_map[10] = PAGE_SHARED_NOEXEC;
++ protection_map[11] = PAGE_SHARED_NOEXEC;
+ protection_map[12] = PAGE_READONLY;
+ protection_map[13] = PAGE_READONLY;
+ protection_map[14] = PAGE_SHARED;
+diff -urNp linux-2.6.28.8/arch/sparc/mm/srmmu.c linux-2.6.28.8/arch/sparc/mm/srmmu.c
+--- linux-2.6.28.8/arch/sparc/mm/srmmu.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc/mm/srmmu.c 2009-02-21 09:37:48.000000000 -0500
+@@ -2162,6 +2162,13 @@ void __init ld_mmu_srmmu(void)
+ PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED);
+ BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY));
+ BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY));
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ PAGE_SHARED_NOEXEC = pgprot_val(SRMMU_PAGE_SHARED_NOEXEC);
++ BTFIXUPSET_INT(page_copy_noexec, pgprot_val(SRMMU_PAGE_COPY_NOEXEC));
++ BTFIXUPSET_INT(page_readonly_noexec, pgprot_val(SRMMU_PAGE_RDONLY_NOEXEC));
++#endif
++
+ BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL));
+ page_kernel = pgprot_val(SRMMU_PAGE_KERNEL);
+
+diff -urNp linux-2.6.28.8/arch/sparc64/kernel/Makefile linux-2.6.28.8/arch/sparc64/kernel/Makefile
+--- linux-2.6.28.8/arch/sparc64/kernel/Makefile 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc64/kernel/Makefile 2009-02-21 09:37:48.000000000 -0500
+@@ -3,7 +3,7 @@
+ #
+
+ EXTRA_AFLAGS := -ansi
+-EXTRA_CFLAGS := -Werror
++#EXTRA_CFLAGS := -Werror
+
+ CFLAGS_REMOVE_ftrace.o = -pg
+
+diff -urNp linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c
+--- linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c 2009-02-08 00:54:27.000000000 -0500
++++ linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500
+@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(str
+ /* We do not accept a shared mapping if it would violate
+ * cache aliasing constraints.
+ */
+- if ((flags & MAP_SHARED) &&
++ if ((filp || (flags & MAP_SHARED)) &&
+ ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
+ return -EINVAL;
+ return addr;
+@@ -139,6 +139,10 @@ unsigned long arch_get_unmapped_area(str
+ if (filp || (flags & MAP_SHARED))
+ do_color_align = 1;
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ if (addr) {
+ if (do_color_align)
+ addr = COLOUR_ALIGN(addr, pgoff);
+@@ -152,9 +156,9 @@ unsigned long arch_get_unmapped_area(str
+ }
+
+ if (len > mm->cached_hole_size) {
+- start_addr = addr = mm->free_area_cache;
++ start_addr = addr = mm->free_area_cache;
+ } else {
+- start_addr = addr = TASK_UNMAPPED_BASE;
++ start_addr = addr = mm->mmap_base;
+ mm->cached_hole_size = 0;
+ }
+
+@@ -174,8 +178,8 @@ full_search:
+ vma = find_vma(mm, VA_EXCLUDE_END);
+ }
+ if (unlikely(task_size < addr)) {
+- if (start_addr != TASK_UNMAPPED_BASE) {
+- start_addr = addr = TASK_UNMAPPED_BASE;
++ if (start_addr != mm->mmap_base) {
++ start_addr = addr = mm->mmap_base;
+ mm->cached_hole_size = 0;
+ goto full_search;
+ }
+@@ -215,7 +219,7 @@ arch_get_unmapped_area_topdown(struct fi
+ /* We do not accept a shared mapping if it would violate
+ * cache aliasing constraints.
+ */
+- if ((flags & MAP_SHARED) &&
++ if ((filp || (flags & MAP_SHARED)) &&
+ ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
+ return -EINVAL;
+ return addr;
+@@ -378,6 +382,12 @@ void arch_pick_mmap_layout(struct mm_str
+ current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY ||
+ sysctl_legacy_va_layout) {
+ mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
+ mm->get_unmapped_area = arch_get_unmapped_area;
+ mm->unmap_area = arch_unmap_area;
+ } else {
+@@ -392,6 +402,12 @@ void arch_pick_mmap_layout(struct mm_str
+ gap = (task_size / 6 * 5);
+
+ mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ mm->unmap_area = arch_unmap_area_topdown;
+ }
+diff -urNp linux-2.6.28.8/arch/sparc64/mm/fault.c linux-2.6.28.8/arch/sparc64/mm/fault.c
+--- linux-2.6.28.8/arch/sparc64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -19,6 +19,9 @@
+ #include <linux/interrupt.h>
+ #include <linux/kprobes.h>
+ #include <linux/kdebug.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
++#include <linux/compiler.h>
+
+ #include <asm/page.h>
+ #include <asm/pgtable.h>
+@@ -224,6 +227,367 @@ cannot_handle:
+ unhandled_fault (address, current, regs);
+ }
+
++#ifdef CONFIG_PAX_PAGEEXEC
++#ifdef CONFIG_PAX_EMUPLT
++static void pax_emuplt_close(struct vm_area_struct *vma)
++{
++ vma->vm_mm->call_dl_resolve = 0UL;
++}
++
++static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
++{
++ unsigned int *kaddr;
++
++ vmf->page = alloc_page(GFP_HIGHUSER);
++ if (!vmf->page)
++ return VM_FAULT_OOM;
++
++ kaddr = kmap(vmf->page);
++ memset(kaddr, 0, PAGE_SIZE);
++ kaddr[0] = 0x9DE3BFA8U; /* save */
++ flush_dcache_page(vmf->page);
++ kunmap(vmf->page);
++ return VM_FAULT_MAJOR;
++}
++
++static struct vm_operations_struct pax_vm_ops = {
++ .close = pax_emuplt_close,
++ .fault = pax_emuplt_fault
++};
++
++static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
++{
++ int ret;
++
++ vma->vm_mm = current->mm;
++ vma->vm_start = addr;
++ vma->vm_end = addr + PAGE_SIZE;
++ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
++ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
++ vma->vm_ops = &pax_vm_ops;
++
++ ret = insert_vm_struct(current->mm, vma);
++ if (ret)
++ return ret;
++
++ ++current->mm->total_vm;
++ return 0;
++}
++#endif
++
++/*
++ * PaX: decide what to do with offenders (regs->tpc = fault address)
++ *
++ * returns 1 when task should be killed
++ * 2 when patched PLT trampoline was detected
++ * 3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++ int err;
++
++ do { /* PaX: patched PLT emulation #1 */
++ unsigned int sethi1, sethi2, jmpl;
++
++ err = get_user(sethi1, (unsigned int *)regs->tpc);
++ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
++ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
++
++ if (err)
++ break;
++
++ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
++ (sethi2 & 0xFFC00000U) == 0x03000000U &&
++ (jmpl & 0xFFFFE000U) == 0x81C06000U)
++ {
++ unsigned long addr;
++
++ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
++ addr = regs->u_regs[UREG_G1];
++ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
++ regs->tpc = addr;
++ regs->tnpc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ { /* PaX: patched PLT emulation #2 */
++ unsigned int ba;
++
++ err = get_user(ba, (unsigned int *)regs->tpc);
++
++ if (!err && (ba & 0xFFC00000U) == 0x30800000U) {
++ unsigned long addr;
++
++ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
++ regs->tpc = addr;
++ regs->tnpc = addr+4;
++ return 2;
++ }
++ }
++
++ do { /* PaX: patched PLT emulation #3 */
++ unsigned int sethi, jmpl, nop;
++
++ err = get_user(sethi, (unsigned int *)regs->tpc);
++ err |= get_user(jmpl, (unsigned int *)(regs->tpc+4));
++ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
++
++ if (err)
++ break;
++
++ if ((sethi & 0xFFC00000U) == 0x03000000U &&
++ (jmpl & 0xFFFFE000U) == 0x81C06000U &&
++ nop == 0x01000000U)
++ {
++ unsigned long addr;
++
++ addr = (sethi & 0x003FFFFFU) << 10;
++ regs->u_regs[UREG_G1] = addr;
++ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
++ regs->tpc = addr;
++ regs->tnpc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: patched PLT emulation #4 */
++ unsigned int mov1, call, mov2;
++
++ err = get_user(mov1, (unsigned int *)regs->tpc);
++ err |= get_user(call, (unsigned int *)(regs->tpc+4));
++ err |= get_user(mov2, (unsigned int *)(regs->tpc+8));
++
++ if (err)
++ break;
++
++ if (mov1 == 0x8210000FU &&
++ (call & 0xC0000000U) == 0x40000000U &&
++ mov2 == 0x9E100001U)
++ {
++ unsigned long addr;
++
++ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
++ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
++ regs->tpc = addr;
++ regs->tnpc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: patched PLT emulation #5 */
++ unsigned int sethi1, sethi2, or1, or2, sllx, jmpl, nop;
++
++ err = get_user(sethi1, (unsigned int *)regs->tpc);
++ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
++ err |= get_user(or1, (unsigned int *)(regs->tpc+8));
++ err |= get_user(or2, (unsigned int *)(regs->tpc+12));
++ err |= get_user(sllx, (unsigned int *)(regs->tpc+16));
++ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
++ err |= get_user(nop, (unsigned int *)(regs->tpc+24));
++
++ if (err)
++ break;
++
++ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
++ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
++ (or1 & 0xFFFFE000U) == 0x82106000U &&
++ (or2 & 0xFFFFE000U) == 0x8A116000U &&
++ sllx == 0x83287020 &&
++ jmpl == 0x81C04005U &&
++ nop == 0x01000000U)
++ {
++ unsigned long addr;
++
++ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
++ regs->u_regs[UREG_G1] <<= 32;
++ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
++ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
++ regs->tpc = addr;
++ regs->tnpc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: patched PLT emulation #6 */
++ unsigned int sethi1, sethi2, sllx, or, jmpl, nop;
++
++ err = get_user(sethi1, (unsigned int *)regs->tpc);
++ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
++ err |= get_user(sllx, (unsigned int *)(regs->tpc+8));
++ err |= get_user(or, (unsigned int *)(regs->tpc+12));
++ err |= get_user(jmpl, (unsigned int *)(regs->tpc+16));
++ err |= get_user(nop, (unsigned int *)(regs->tpc+20));
++
++ if (err)
++ break;
++
++ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
++ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
++ sllx == 0x83287020 &&
++ (or & 0xFFFFE000U) == 0x8A116000U &&
++ jmpl == 0x81C04005U &&
++ nop == 0x01000000U)
++ {
++ unsigned long addr;
++
++ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
++ regs->u_regs[UREG_G1] <<= 32;
++ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
++ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
++ regs->tpc = addr;
++ regs->tnpc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: patched PLT emulation #7 */
++ unsigned int sethi, ba, nop;
++
++ err = get_user(sethi, (unsigned int *)regs->tpc);
++ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
++ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
++
++ if (err)
++ break;
++
++ if ((sethi & 0xFFC00000U) == 0x03000000U &&
++ (ba & 0xFFF00000U) == 0x30600000U &&
++ nop == 0x01000000U)
++ {
++ unsigned long addr;
++
++ addr = (sethi & 0x003FFFFFU) << 10;
++ regs->u_regs[UREG_G1] = addr;
++ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
++ regs->tpc = addr;
++ regs->tnpc = addr+4;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: unpatched PLT emulation step 1 */
++ unsigned int sethi, ba, nop;
++
++ err = get_user(sethi, (unsigned int *)regs->tpc);
++ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
++ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
++
++ if (err)
++ break;
++
++ if ((sethi & 0xFFC00000U) == 0x03000000U &&
++ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
++ nop == 0x01000000U)
++ {
++ unsigned long addr;
++ unsigned int save, call;
++
++ if ((ba & 0xFFC00000U) == 0x30800000U)
++ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
++ else
++ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
++
++ err = get_user(save, (unsigned int *)addr);
++ err |= get_user(call, (unsigned int *)(addr+4));
++ err |= get_user(nop, (unsigned int *)(addr+8));
++ if (err)
++ break;
++
++ if (save == 0x9DE3BFA8U &&
++ (call & 0xC0000000U) == 0x40000000U &&
++ nop == 0x01000000U)
++ {
++ struct vm_area_struct *vma;
++ unsigned long call_dl_resolve;
++
++ down_read(¤t->mm->mmap_sem);
++ call_dl_resolve = current->mm->call_dl_resolve;
++ up_read(¤t->mm->mmap_sem);
++ if (likely(call_dl_resolve))
++ goto emulate;
++
++ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++
++ down_write(¤t->mm->mmap_sem);
++ if (current->mm->call_dl_resolve) {
++ call_dl_resolve = current->mm->call_dl_resolve;
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ goto emulate;
++ }
++
++ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
++ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
++ up_write(¤t->mm->mmap_sem);
++ if (vma)
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ if (pax_insert_vma(vma, call_dl_resolve)) {
++ up_write(¤t->mm->mmap_sem);
++ kmem_cache_free(vm_area_cachep, vma);
++ return 1;
++ }
++
++ current->mm->call_dl_resolve = call_dl_resolve;
++ up_write(¤t->mm->mmap_sem);
++
++emulate:
++ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
++ regs->tpc = call_dl_resolve;
++ regs->tnpc = addr+4;
++ return 3;
++ }
++ }
++ } while (0);
++
++ do { /* PaX: unpatched PLT emulation step 2 */
++ unsigned int save, call, nop;
++
++ err = get_user(save, (unsigned int *)(regs->tpc-4));
++ err |= get_user(call, (unsigned int *)regs->tpc);
++ err |= get_user(nop, (unsigned int *)(regs->tpc+4));
++ if (err)
++ break;
++
++ if (save == 0x9DE3BFA8U &&
++ (call & 0xC0000000U) == 0x40000000U &&
++ nop == 0x01000000U)
++ {
++ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
++
++ regs->u_regs[UREG_RETPC] = regs->tpc;
++ regs->tpc = dl_resolve;
++ regs->tnpc = dl_resolve+4;
++ return 3;
++ }
++ } while (0);
++#endif
++
++ return 1;
++}
++
++void pax_report_insns(void *pc, void *sp)
++{
++ unsigned long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 5; i++) {
++ unsigned int c;
++ if (get_user(c, (unsigned int *)pc+i))
++ printk(KERN_CONT "???????? ");
++ else
++ printk(KERN_CONT "%08x ", c);
++ }
++ printk("\n");
++}
++#endif
++
+ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
+ {
+ struct mm_struct *mm = current->mm;
+@@ -265,8 +629,10 @@ asmlinkage void __kprobes do_sparc64_fau
+ goto intr_or_no_mm;
+
+ if (test_thread_flag(TIF_32BIT)) {
+- if (!(regs->tstate & TSTATE_PRIV))
++ if (!(regs->tstate & TSTATE_PRIV)) {
+ regs->tpc &= 0xffffffff;
++ regs->tnpc &= 0xffffffff;
++ }
+ address &= 0xffffffff;
+ }
+
+@@ -283,6 +649,29 @@ asmlinkage void __kprobes do_sparc64_fau
+ if (!vma)
+ goto bad_area;
+
++#ifdef CONFIG_PAX_PAGEEXEC
++ /* PaX: detect ITLB misses on non-exec pages */
++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
++ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
++ {
++ if (address != regs->tpc)
++ goto good_area;
++
++ up_read(&mm->mmap_sem);
++ switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++ case 2:
++ case 3:
++ return;
++#endif
++
++ }
++ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
++ do_group_exit(SIGKILL);
++ }
++#endif
++
+ /* Pure DTLB misses do not tell us whether the fault causing
+ * load/store/atomic was a write or not, it only says that there
+ * was no match. So in such a case we (carefully) read the
+diff -urNp linux-2.6.28.8/arch/sparc64/mm/Makefile linux-2.6.28.8/arch/sparc64/mm/Makefile
+--- linux-2.6.28.8/arch/sparc64/mm/Makefile 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/sparc64/mm/Makefile 2009-02-21 09:37:48.000000000 -0500
+@@ -2,7 +2,7 @@
+ #
+
+ EXTRA_AFLAGS := -ansi
+-EXTRA_CFLAGS := -Werror
++#EXTRA_CFLAGS := -Werror
+
+ obj-y := ultra.o tlb.o tsb.o fault.o init.o generic.o
+
+diff -urNp linux-2.6.28.8/arch/um/include/asm/kmap_types.h linux-2.6.28.8/arch/um/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/um/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/um/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -23,6 +23,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/arch/um/include/asm/page.h linux-2.6.28.8/arch/um/include/asm/page.h
+--- linux-2.6.28.8/arch/um/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/um/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500
+@@ -14,6 +14,9 @@
+ #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
+ #define PAGE_MASK (~(PAGE_SIZE-1))
+
++#define ktla_ktva(addr) (addr)
++#define ktva_ktla(addr) (addr)
++
+ #ifndef __ASSEMBLY__
+
+ struct page;
+diff -urNp linux-2.6.28.8/arch/um/sys-i386/syscalls.c linux-2.6.28.8/arch/um/sys-i386/syscalls.c
+--- linux-2.6.28.8/arch/um/sys-i386/syscalls.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/um/sys-i386/syscalls.c 2009-02-21 09:37:48.000000000 -0500
+@@ -11,6 +11,21 @@
+ #include "asm/uaccess.h"
+ #include "asm/unistd.h"
+
++int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
++{
++ unsigned long pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++ if (len > pax_task_size || addr > pax_task_size - len)
++ return -EINVAL;
++
++ return 0;
++}
++
+ /*
+ * Perform the select(nd, in, out, ex, tv) and mmap() system
+ * calls. Linux/i386 didn't use to be able to handle more than
+diff -urNp linux-2.6.28.8/arch/x86/boot/bitops.h linux-2.6.28.8/arch/x86/boot/bitops.h
+--- linux-2.6.28.8/arch/x86/boot/bitops.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/bitops.h 2009-02-21 09:37:48.000000000 -0500
+@@ -26,7 +26,7 @@ static inline int variable_test_bit(int
+ u8 v;
+ const u32 *p = (const u32 *)addr;
+
+- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
++ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
+ return v;
+ }
+
+@@ -37,7 +37,7 @@ static inline int variable_test_bit(int
+
+ static inline void set_bit(int nr, void *addr)
+ {
+- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
++ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
+ }
+
+ #endif /* BOOT_BITOPS_H */
+diff -urNp linux-2.6.28.8/arch/x86/boot/boot.h linux-2.6.28.8/arch/x86/boot/boot.h
+--- linux-2.6.28.8/arch/x86/boot/boot.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/boot.h 2009-02-21 09:37:48.000000000 -0500
+@@ -80,7 +80,7 @@ static inline void io_delay(void)
+ static inline u16 ds(void)
+ {
+ u16 seg;
+- asm("movw %%ds,%0" : "=rm" (seg));
++ asm volatile("movw %%ds,%0" : "=rm" (seg));
+ return seg;
+ }
+
+@@ -176,7 +176,7 @@ static inline void wrgs32(u32 v, addr_t
+ static inline int memcmp(const void *s1, const void *s2, size_t len)
+ {
+ u8 diff;
+- asm("repe; cmpsb; setnz %0"
++ asm volatile("repe; cmpsb; setnz %0"
+ : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
+ return diff;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/boot/compressed/head_32.S linux-2.6.28.8/arch/x86/boot/compressed/head_32.S
+--- linux-2.6.28.8/arch/x86/boot/compressed/head_32.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/compressed/head_32.S 2009-03-07 10:28:24.000000000 -0500
+@@ -70,7 +70,7 @@ startup_32:
+ addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebx
+ andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebx
+ #else
+- movl $LOAD_PHYSICAL_ADDR, %ebx
++ movl $____LOAD_PHYSICAL_ADDR, %ebx
+ #endif
+
+ /* Replace the compressed data size with the uncompressed size */
+@@ -80,8 +80,8 @@ startup_32:
+ /* Add 8 bytes for every 32K input block */
+ shrl $12, %eax
+ addl %eax, %ebx
+- /* Add 32K + 18 bytes of extra slack */
+- addl $(32768 + 18), %ebx
++ /* Add 64K of extra slack */
++ addl $65536, %ebx
+ /* Align on a 4K boundary */
+ addl $4095, %ebx
+ andl $~4095, %ebx
+@@ -105,7 +105,7 @@ startup_32:
+ addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebp
+ andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebp
+ #else
+- movl $LOAD_PHYSICAL_ADDR, %ebp
++ movl $____LOAD_PHYSICAL_ADDR, %ebp
+ #endif
+
+ /*
+@@ -160,16 +160,15 @@ relocated:
+ * and where it was actually loaded.
+ */
+ movl %ebp, %ebx
+- subl $LOAD_PHYSICAL_ADDR, %ebx
++ subl $____LOAD_PHYSICAL_ADDR, %ebx
+ jz 2f /* Nothing to be done if loaded at compiled addr. */
+ /*
+ * Process relocations.
+ */
+
+ 1: subl $4, %edi
+- movl 0(%edi), %ecx
+- testl %ecx, %ecx
+- jz 2f
++ movl (%edi), %ecx
++ jecxz 2f
+ addl %ebx, -__PAGE_OFFSET(%ebx, %ecx)
+ jmp 1b
+ 2:
+diff -urNp linux-2.6.28.8/arch/x86/boot/compressed/misc.c linux-2.6.28.8/arch/x86/boot/compressed/misc.c
+--- linux-2.6.28.8/arch/x86/boot/compressed/misc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/compressed/misc.c 2009-02-21 09:37:48.000000000 -0500
+@@ -373,7 +373,7 @@ static void parse_elf(void *output)
+ case PT_LOAD:
+ #ifdef CONFIG_RELOCATABLE
+ dest = output;
+- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
++ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
+ #else
+ dest = (void *)(phdr->p_paddr);
+ #endif
+@@ -425,7 +425,7 @@ asmlinkage void decompress_kernel(void *
+ if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff))
+ error("Destination address too large");
+ #ifndef CONFIG_RELOCATABLE
+- if ((u32)output != LOAD_PHYSICAL_ADDR)
++ if ((u32)output != ____LOAD_PHYSICAL_ADDR)
+ error("Wrong destination address");
+ #endif
+ #endif
+diff -urNp linux-2.6.28.8/arch/x86/boot/compressed/relocs.c linux-2.6.28.8/arch/x86/boot/compressed/relocs.c
+--- linux-2.6.28.8/arch/x86/boot/compressed/relocs.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/compressed/relocs.c 2009-02-21 09:37:48.000000000 -0500
+@@ -10,8 +10,11 @@
+ #define USE_BSD
+ #include <endian.h>
+
++#include "../../../../include/linux/autoconf.h"
++
+ #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+ static Elf32_Ehdr ehdr;
++static Elf32_Phdr *phdr;
+ static unsigned long reloc_count, reloc_idx;
+ static unsigned long *relocs;
+
+@@ -245,6 +248,36 @@ static void read_ehdr(FILE *fp)
+ }
+ }
+
++static void read_phdrs(FILE *fp)
++{
++ int i;
++
++ phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr));
++ if (!phdr) {
++ die("Unable to allocate %d program headers\n",
++ ehdr.e_phnum);
++ }
++ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
++ die("Seek to %d failed: %s\n",
++ ehdr.e_phoff, strerror(errno));
++ }
++ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
++ die("Cannot read ELF program headers: %s\n",
++ strerror(errno));
++ }
++ for(i = 0; i < ehdr.e_phnum; i++) {
++ phdr[i].p_type = elf32_to_cpu(phdr[i].p_type);
++ phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset);
++ phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr);
++ phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr);
++ phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz);
++ phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz);
++ phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags);
++ phdr[i].p_align = elf32_to_cpu(phdr[i].p_align);
++ }
++
++}
++
+ static void read_shdrs(FILE *fp)
+ {
+ int i;
+@@ -341,6 +374,8 @@ static void read_symtabs(FILE *fp)
+ static void read_relocs(FILE *fp)
+ {
+ int i,j;
++ uint32_t base;
++
+ for (i = 0; i < ehdr.e_shnum; i++) {
+ struct section *sec = &secs[i];
+ if (sec->shdr.sh_type != SHT_REL) {
+@@ -360,9 +395,18 @@ static void read_relocs(FILE *fp)
+ die("Cannot read symbol table: %s\n",
+ strerror(errno));
+ }
++ base = 0;
++ for (j = 0; j < ehdr.e_phnum; j++) {
++ if (phdr[j].p_type != PT_LOAD )
++ continue;
++ if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz)
++ continue;
++ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
++ break;
++ }
+ for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
+ Elf32_Rel *rel = &sec->reltab[j];
+- rel->r_offset = elf32_to_cpu(rel->r_offset);
++ rel->r_offset = elf32_to_cpu(rel->r_offset) + base;
+ rel->r_info = elf32_to_cpu(rel->r_info);
+ }
+ }
+@@ -504,6 +548,23 @@ static void walk_relocs(void (*visit)(El
+ if (sym->st_shndx == SHN_ABS) {
+ continue;
+ }
++ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
++ if (!strcmp(sec_name(sym->st_shndx), ".data.percpu") && strncmp(sym_name(sym_strtab, sym), "__per_cpu_", 10))
++ continue;
++#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32)
++ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
++ if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
++ continue;
++ if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
++ continue;
++ if (!strcmp(sec_name(sym->st_shndx), ".text.head")) {
++ if (strcmp(sym_name(sym_strtab, sym), "__init_end") &&
++ strcmp(sym_name(sym_strtab, sym), "KERNEL_TEXT_OFFSET"))
++ continue;
++ }
++ if (!strcmp(sec_name(sym->st_shndx), ".text"))
++ continue;
++#endif
+ if (r_type == R_386_PC32) {
+ /* PC relative relocations don't need to be adjusted */
+ }
+@@ -631,6 +692,7 @@ int main(int argc, char **argv)
+ fname, strerror(errno));
+ }
+ read_ehdr(fp);
++ read_phdrs(fp);
+ read_shdrs(fp);
+ read_strtabs(fp);
+ read_symtabs(fp);
+diff -urNp linux-2.6.28.8/arch/x86/boot/cpucheck.c linux-2.6.28.8/arch/x86/boot/cpucheck.c
+--- linux-2.6.28.8/arch/x86/boot/cpucheck.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/cpucheck.c 2009-02-21 09:37:48.000000000 -0500
+@@ -74,7 +74,7 @@ static int has_fpu(void)
+ u16 fcw = -1, fsw = -1;
+ u32 cr0;
+
+- asm("movl %%cr0,%0" : "=r" (cr0));
++ asm volatile("movl %%cr0,%0" : "=r" (cr0));
+ if (cr0 & (X86_CR0_EM|X86_CR0_TS)) {
+ cr0 &= ~(X86_CR0_EM|X86_CR0_TS);
+ asm volatile("movl %0,%%cr0" : : "r" (cr0));
+@@ -90,7 +90,7 @@ static int has_eflag(u32 mask)
+ {
+ u32 f0, f1;
+
+- asm("pushfl ; "
++ asm volatile("pushfl ; "
+ "pushfl ; "
+ "popl %0 ; "
+ "movl %0,%1 ; "
+@@ -115,7 +115,7 @@ static void get_flags(void)
+ set_bit(X86_FEATURE_FPU, cpu.flags);
+
+ if (has_eflag(X86_EFLAGS_ID)) {
+- asm("cpuid"
++ asm volatile("cpuid"
+ : "=a" (max_intel_level),
+ "=b" (cpu_vendor[0]),
+ "=d" (cpu_vendor[1]),
+@@ -124,7 +124,7 @@ static void get_flags(void)
+
+ if (max_intel_level >= 0x00000001 &&
+ max_intel_level <= 0x0000ffff) {
+- asm("cpuid"
++ asm volatile("cpuid"
+ : "=a" (tfms),
+ "=c" (cpu.flags[4]),
+ "=d" (cpu.flags[0])
+@@ -136,7 +136,7 @@ static void get_flags(void)
+ cpu.model += ((tfms >> 16) & 0xf) << 4;
+ }
+
+- asm("cpuid"
++ asm volatile("cpuid"
+ : "=a" (max_amd_level)
+ : "a" (0x80000000)
+ : "ebx", "ecx", "edx");
+@@ -144,7 +144,7 @@ static void get_flags(void)
+ if (max_amd_level >= 0x80000001 &&
+ max_amd_level <= 0x8000ffff) {
+ u32 eax = 0x80000001;
+- asm("cpuid"
++ asm volatile("cpuid"
+ : "+a" (eax),
+ "=c" (cpu.flags[6]),
+ "=d" (cpu.flags[1])
+@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *r
+ u32 ecx = MSR_K7_HWCR;
+ u32 eax, edx;
+
+- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
++ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+ eax &= ~(1 << 15);
+- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
++ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+
+ get_flags(); /* Make sure it really did something */
+ err = check_flags();
+@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *r
+ u32 ecx = MSR_VIA_FCR;
+ u32 eax, edx;
+
+- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
++ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+ eax |= (1<<1)|(1<<7);
+- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
++ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+
+ set_bit(X86_FEATURE_CX8, cpu.flags);
+ err = check_flags();
+@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *r
+ u32 eax, edx;
+ u32 level = 1;
+
+- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
+- asm("cpuid"
++ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
++ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
++ asm volatile("cpuid"
+ : "+a" (level), "=d" (cpu.flags[0])
+ : : "ecx", "ebx");
+- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
++ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+
+ err = check_flags();
+ }
+diff -urNp linux-2.6.28.8/arch/x86/boot/edd.c linux-2.6.28.8/arch/x86/boot/edd.c
+--- linux-2.6.28.8/arch/x86/boot/edd.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/edd.c 2009-02-21 09:37:48.000000000 -0500
+@@ -81,7 +81,7 @@ static int get_edd_info(u8 devno, struct
+ ax = 0x4100;
+ bx = EDDMAGIC1;
+ dx = devno;
+- asm("pushfl; stc; int $0x13; setc %%al; popfl"
++ asm volatile("pushfl; stc; int $0x13; setc %%al; popfl"
+ : "+a" (ax), "+b" (bx), "=c" (cx), "+d" (dx)
+ : : "esi", "edi");
+
+@@ -100,7 +100,7 @@ static int get_edd_info(u8 devno, struct
+ ei->params.length = sizeof(ei->params);
+ ax = 0x4800;
+ dx = devno;
+- asm("pushfl; int $0x13; popfl"
++ asm volatile("pushfl; int $0x13; popfl"
+ : "+a" (ax), "+d" (dx), "=m" (ei->params)
+ : "S" (&ei->params)
+ : "ebx", "ecx", "edi");
+@@ -111,7 +111,7 @@ static int get_edd_info(u8 devno, struct
+ ax = 0x0800;
+ dx = devno;
+ di = 0;
+- asm("pushw %%es; "
++ asm volatile("pushw %%es; "
+ "movw %%di,%%es; "
+ "pushfl; stc; int $0x13; setc %%al; popfl; "
+ "popw %%es"
+diff -urNp linux-2.6.28.8/arch/x86/boot/main.c linux-2.6.28.8/arch/x86/boot/main.c
+--- linux-2.6.28.8/arch/x86/boot/main.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/main.c 2009-02-21 09:37:48.000000000 -0500
+@@ -78,7 +78,7 @@ static void query_ist(void)
+ if (cpu.level < 6)
+ return;
+
+- asm("int $0x15"
++ asm volatile("int $0x15"
+ : "=a" (boot_params.ist_info.signature),
+ "=b" (boot_params.ist_info.command),
+ "=c" (boot_params.ist_info.event),
+diff -urNp linux-2.6.28.8/arch/x86/boot/mca.c linux-2.6.28.8/arch/x86/boot/mca.c
+--- linux-2.6.28.8/arch/x86/boot/mca.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/mca.c 2009-02-21 09:37:48.000000000 -0500
+@@ -19,7 +19,7 @@ int query_mca(void)
+ u8 err;
+ u16 es, bx, len;
+
+- asm("pushw %%es ; "
++ asm volatile("pushw %%es ; "
+ "int $0x15 ; "
+ "setc %0 ; "
+ "movw %%es, %1 ; "
+diff -urNp linux-2.6.28.8/arch/x86/boot/memory.c linux-2.6.28.8/arch/x86/boot/memory.c
+--- linux-2.6.28.8/arch/x86/boot/memory.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/memory.c 2009-02-21 09:37:48.000000000 -0500
+@@ -30,7 +30,7 @@ static int detect_memory_e820(void)
+ /* Important: %edx is clobbered by some BIOSes,
+ so it must be either used for the error output
+ or explicitly marked clobbered. */
+- asm("int $0x15; setc %0"
++ asm volatile("int $0x15; setc %0"
+ : "=d" (err), "+b" (next), "=a" (id), "+c" (size),
+ "=m" (*desc)
+ : "D" (desc), "d" (SMAP), "a" (0xe820));
+@@ -65,7 +65,7 @@ static int detect_memory_e801(void)
+
+ bx = cx = dx = 0;
+ ax = 0xe801;
+- asm("stc; int $0x15; setc %0"
++ asm volatile("stc; int $0x15; setc %0"
+ : "=m" (err), "+a" (ax), "+b" (bx), "+c" (cx), "+d" (dx));
+
+ if (err)
+@@ -95,7 +95,7 @@ static int detect_memory_88(void)
+ u8 err;
+
+ ax = 0x8800;
+- asm("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax));
++ asm volatile("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax));
+
+ boot_params.screen_info.ext_mem_k = ax;
+
+diff -urNp linux-2.6.28.8/arch/x86/boot/video.c linux-2.6.28.8/arch/x86/boot/video.c
+--- linux-2.6.28.8/arch/x86/boot/video.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/video.c 2009-02-21 09:37:48.000000000 -0500
+@@ -23,7 +23,7 @@ static void store_cursor_position(void)
+
+ ax = 0x0300;
+ bx = 0;
+- asm(INT10
++ asm volatile(INT10
+ : "=d" (curpos), "+a" (ax), "+b" (bx)
+ : : "ecx", "esi", "edi");
+
+@@ -38,7 +38,7 @@ static void store_video_mode(void)
+ /* N.B.: the saving of the video page here is a bit silly,
+ since we pretty much assume page 0 everywhere. */
+ ax = 0x0f00;
+- asm(INT10
++ asm volatile(INT10
+ : "+a" (ax), "=b" (page)
+ : : "ecx", "edx", "esi", "edi");
+
+diff -urNp linux-2.6.28.8/arch/x86/boot/video-vesa.c linux-2.6.28.8/arch/x86/boot/video-vesa.c
+--- linux-2.6.28.8/arch/x86/boot/video-vesa.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/video-vesa.c 2009-02-21 09:37:48.000000000 -0500
+@@ -41,7 +41,7 @@ static int vesa_probe(void)
+
+ ax = 0x4f00;
+ di = (size_t)&vginfo;
+- asm(INT10
++ asm volatile(INT10
+ : "+a" (ax), "+D" (di), "=m" (vginfo)
+ : : "ebx", "ecx", "edx", "esi");
+
+@@ -68,7 +68,7 @@ static int vesa_probe(void)
+ ax = 0x4f01;
+ cx = mode;
+ di = (size_t)&vminfo;
+- asm(INT10
++ asm volatile(INT10
+ : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo)
+ : : "ebx", "edx", "esi");
+
+@@ -120,7 +120,7 @@ static int vesa_set_mode(struct mode_inf
+ ax = 0x4f01;
+ cx = vesa_mode;
+ di = (size_t)&vminfo;
+- asm(INT10
++ asm volatile(INT10
+ : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo)
+ : : "ebx", "edx", "esi");
+
+@@ -202,19 +202,20 @@ static void vesa_dac_set_8bits(void)
+ /* Save the VESA protected mode info */
+ static void vesa_store_pm_info(void)
+ {
+- u16 ax, bx, di, es;
++ u16 ax, bx, cx, di, es;
+
+ ax = 0x4f0a;
+- bx = di = 0;
+- asm("pushw %%es; "INT10"; movw %%es,%0; popw %%es"
+- : "=d" (es), "+a" (ax), "+b" (bx), "+D" (di)
+- : : "ecx", "esi");
++ bx = cx = di = 0;
++ asm volatile("pushw %%es; "INT10"; movw %%es,%0; popw %%es"
++ : "=d" (es), "+a" (ax), "+b" (bx), "+c" (cx), "+D" (di)
++ : : "esi");
+
+ if (ax != 0x004f)
+ return;
+
+ boot_params.screen_info.vesapm_seg = es;
+ boot_params.screen_info.vesapm_off = di;
++ boot_params.screen_info.vesapm_size = cx;
+ }
+
+ /*
+@@ -268,7 +269,7 @@ void vesa_store_edid(void)
+ /* Note: The VBE DDC spec is different from the main VESA spec;
+ we genuinely have to assume all registers are destroyed here. */
+
+- asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es"
++ asm volatile("pushw %%es; movw %2,%%es; "INT10"; popw %%es"
+ : "+a" (ax), "+b" (bx)
+ : "c" (cx), "D" (di)
+ : "esi");
+@@ -284,7 +285,7 @@ void vesa_store_edid(void)
+ cx = 0; /* Controller 0 */
+ dx = 0; /* EDID block number */
+ di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */
+- asm(INT10
++ asm volatile(INT10
+ : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info)
+ : "c" (cx), "D" (di)
+ : "esi");
+diff -urNp linux-2.6.28.8/arch/x86/boot/video-vga.c linux-2.6.28.8/arch/x86/boot/video-vga.c
+--- linux-2.6.28.8/arch/x86/boot/video-vga.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/video-vga.c 2009-02-21 09:37:48.000000000 -0500
+@@ -225,7 +225,7 @@ static int vga_probe(void)
+ };
+ u8 vga_flag;
+
+- asm(INT10
++ asm volatile(INT10
+ : "=b" (ega_bx)
+ : "a" (0x1200), "b" (0x10) /* Check EGA/VGA */
+ : "ecx", "edx", "esi", "edi");
+@@ -237,7 +237,7 @@ static int vga_probe(void)
+ /* If we have MDA/CGA/HGC then BL will be unchanged at 0x10 */
+ if ((u8)ega_bx != 0x10) {
+ /* EGA/VGA */
+- asm(INT10
++ asm volatile(INT10
+ : "=a" (vga_flag)
+ : "a" (0x1a00)
+ : "ebx", "ecx", "edx", "esi", "edi");
+diff -urNp linux-2.6.28.8/arch/x86/boot/voyager.c linux-2.6.28.8/arch/x86/boot/voyager.c
+--- linux-2.6.28.8/arch/x86/boot/voyager.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/boot/voyager.c 2009-02-21 09:37:48.000000000 -0500
+@@ -23,7 +23,7 @@ int query_voyager(void)
+
+ data_ptr[0] = 0xff; /* Flag on config not found(?) */
+
+- asm("pushw %%es ; "
++ asm volatile("pushw %%es ; "
+ "int $0x15 ; "
+ "setc %0 ; "
+ "movw %%es, %1 ; "
+diff -urNp linux-2.6.28.8/arch/x86/ia32/ia32_signal.c linux-2.6.28.8/arch/x86/ia32/ia32_signal.c
+--- linux-2.6.28.8/arch/x86/ia32/ia32_signal.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/ia32/ia32_signal.c 2009-02-21 09:37:48.000000000 -0500
+@@ -518,6 +518,7 @@ int ia32_setup_rt_frame(int sig, struct
+ __NR_ia32_rt_sigreturn,
+ 0x80cd,
+ 0,
++ 0
+ };
+
+ frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/alternative.h linux-2.6.28.8/arch/x86/include/asm/alternative.h
+--- linux-2.6.28.8/arch/x86/include/asm/alternative.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/alternative.h 2009-02-21 09:37:48.000000000 -0500
+@@ -96,7 +96,7 @@ const unsigned char *const *find_nop_tab
+ " .byte 662b-661b\n" /* sourcelen */ \
+ " .byte 664f-663f\n" /* replacementlen */ \
+ ".previous\n" \
+- ".section .altinstr_replacement,\"ax\"\n" \
++ ".section .altinstr_replacement,\"a\"\n" \
+ "663:\n\t" newinstr "\n664:\n" /* replacement */ \
+ ".previous" :: "i" (feature) : "memory")
+
+@@ -120,7 +120,7 @@ const unsigned char *const *find_nop_tab
+ " .byte 662b-661b\n" /* sourcelen */ \
+ " .byte 664f-663f\n" /* replacementlen */ \
+ ".previous\n" \
+- ".section .altinstr_replacement,\"ax\"\n" \
++ ".section .altinstr_replacement,\"a\"\n" \
+ "663:\n\t" newinstr "\n664:\n" /* replacement */ \
+ ".previous" :: "i" (feature), ##input)
+
+@@ -135,7 +135,7 @@ const unsigned char *const *find_nop_tab
+ " .byte 662b-661b\n" /* sourcelen */ \
+ " .byte 664f-663f\n" /* replacementlen */ \
+ ".previous\n" \
+- ".section .altinstr_replacement,\"ax\"\n" \
++ ".section .altinstr_replacement,\"a\"\n" \
+ "663:\n\t" newinstr "\n664:\n" /* replacement */ \
+ ".previous" : output : [feat] "i" (feature), ##input)
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/atomic_32.h linux-2.6.28.8/arch/x86/include/asm/atomic_32.h
+--- linux-2.6.28.8/arch/x86/include/asm/atomic_32.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/atomic_32.h 2009-02-21 09:37:48.000000000 -0500
+@@ -47,7 +47,29 @@ typedef struct {
+ */
+ static inline void atomic_add(int i, atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "addl %1,%0"
++ asm volatile(LOCK_PREFIX "addl %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "subl %1,%0\n"
++ "into\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ : "+m" (v->counter)
++ : "ir" (i));
++}
++
++/**
++ * atomic_add_unchecked - add integer to atomic variable
++ * @i: integer value to add
++ * @v: pointer of type atomic_t
++ *
++ * Atomically adds @i to @v.
++ */
++static inline void atomic_add_unchecked(int i, atomic_t *v)
++{
++ asm volatile(LOCK_PREFIX "addl %1,%0\n"
+ : "+m" (v->counter)
+ : "ir" (i));
+ }
+@@ -61,7 +83,15 @@ static inline void atomic_add(int i, ato
+ */
+ static inline void atomic_sub(int i, atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "subl %1,%0"
++ asm volatile(LOCK_PREFIX "subl %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "addl %1,%0\n"
++ "into\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
+ : "+m" (v->counter)
+ : "ir" (i));
+ }
+@@ -79,7 +109,16 @@ static inline int atomic_sub_and_test(in
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
++ asm volatile(LOCK_PREFIX "subl %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "addl %2,%0\n"
++ "into\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ "sete %1\n"
+ : "+m" (v->counter), "=qm" (c)
+ : "ir" (i) : "memory");
+ return c;
+@@ -93,7 +132,18 @@ static inline int atomic_sub_and_test(in
+ */
+ static inline void atomic_inc(atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "incl %0"
++ asm volatile(LOCK_PREFIX "incl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "into\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "decl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (v->counter));
+ }
+
+@@ -105,7 +155,18 @@ static inline void atomic_inc(atomic_t *
+ */
+ static inline void atomic_dec(atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "decl %0"
++ asm volatile(LOCK_PREFIX "decl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "into\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "incl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (v->counter));
+ }
+
+@@ -121,7 +182,19 @@ static inline int atomic_dec_and_test(at
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "decl %0; sete %1"
++ asm volatile(LOCK_PREFIX "decl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "into\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "incl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "+m" (v->counter), "=qm" (c)
+ : : "memory");
+ return c != 0;
+@@ -139,7 +212,19 @@ static inline int atomic_inc_and_test(at
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "incl %0; sete %1"
++ asm volatile(LOCK_PREFIX "incl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "into\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "decl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "+m" (v->counter), "=qm" (c)
+ : : "memory");
+ return c != 0;
+@@ -158,7 +243,16 @@ static inline int atomic_add_negative(in
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
++ asm volatile(LOCK_PREFIX "addl %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "subl %2,%0\n"
++ "into\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ "sets %1\n"
+ : "+m" (v->counter), "=qm" (c)
+ : "ir" (i) : "memory");
+ return c;
+@@ -181,7 +275,15 @@ static inline int atomic_add_return(int
+ #endif
+ /* Modern 486+ processor */
+ __i = i;
+- asm volatile(LOCK_PREFIX "xaddl %0, %1"
++ asm volatile(LOCK_PREFIX "xaddl %0, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "movl %0, %1\n"
++ "into\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
+ : "+r" (i), "+m" (v->counter)
+ : : "memory");
+ return i + __i;
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/atomic_64.h linux-2.6.28.8/arch/x86/include/asm/atomic_64.h
+--- linux-2.6.28.8/arch/x86/include/asm/atomic_64.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/atomic_64.h 2009-02-21 09:37:48.000000000 -0500
+@@ -48,7 +48,29 @@ typedef struct {
+ */
+ static inline void atomic_add(int i, atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "addl %1,%0"
++ asm volatile(LOCK_PREFIX "addl %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "subl %1,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ : "=m" (v->counter)
++ : "ir" (i), "m" (v->counter));
++}
++
++/**
++ * atomic_add_unchecked - add integer to atomic variable
++ * @i: integer value to add
++ * @v: pointer of type atomic_t
++ *
++ * Atomically adds @i to @v.
++ */
++static inline void atomic_add_unchecked(int i, atomic_t *v)
++{
++ asm volatile(LOCK_PREFIX "addl %1,%0\n"
+ : "=m" (v->counter)
+ : "ir" (i), "m" (v->counter));
+ }
+@@ -62,7 +84,15 @@ static inline void atomic_add(int i, ato
+ */
+ static inline void atomic_sub(int i, atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "subl %1,%0"
++ asm volatile(LOCK_PREFIX "subl %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "addl %1,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
+ : "=m" (v->counter)
+ : "ir" (i), "m" (v->counter));
+ }
+@@ -80,7 +110,16 @@ static inline int atomic_sub_and_test(in
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
++ asm volatile(LOCK_PREFIX "subl %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "addl %2,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ "sete %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "ir" (i), "m" (v->counter) : "memory");
+ return c;
+@@ -94,7 +133,19 @@ static inline int atomic_sub_and_test(in
+ */
+ static inline void atomic_inc(atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "incl %0"
++ asm volatile(LOCK_PREFIX "incl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "decl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "=m" (v->counter)
+ : "m" (v->counter));
+ }
+@@ -107,7 +158,19 @@ static inline void atomic_inc(atomic_t *
+ */
+ static inline void atomic_dec(atomic_t *v)
+ {
+- asm volatile(LOCK_PREFIX "decl %0"
++ asm volatile(LOCK_PREFIX "decl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "incl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "=m" (v->counter)
+ : "m" (v->counter));
+ }
+@@ -124,7 +187,20 @@ static inline int atomic_dec_and_test(at
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "decl %0; sete %1"
++ asm volatile(LOCK_PREFIX "decl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "incl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "m" (v->counter) : "memory");
+ return c != 0;
+@@ -142,7 +218,20 @@ static inline int atomic_inc_and_test(at
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "incl %0; sete %1"
++ asm volatile(LOCK_PREFIX "incl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "decl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "m" (v->counter) : "memory");
+ return c != 0;
+@@ -161,7 +250,16 @@ static inline int atomic_add_negative(in
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
++ asm volatile(LOCK_PREFIX "addl %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "subl %2,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ "sets %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "ir" (i), "m" (v->counter) : "memory");
+ return c;
+@@ -177,7 +275,15 @@ static inline int atomic_add_negative(in
+ static inline int atomic_add_return(int i, atomic_t *v)
+ {
+ int __i = i;
+- asm volatile(LOCK_PREFIX "xaddl %0, %1"
++ asm volatile(LOCK_PREFIX "xaddl %0, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "movl %0, %1\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
+ : "+r" (i), "+m" (v->counter)
+ : : "memory");
+ return i + __i;
+@@ -226,7 +332,15 @@ typedef struct {
+ */
+ static inline void atomic64_add(long i, atomic64_t *v)
+ {
+- asm volatile(LOCK_PREFIX "addq %1,%0"
++ asm volatile(LOCK_PREFIX "addq %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "subq %1,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
+ : "=m" (v->counter)
+ : "er" (i), "m" (v->counter));
+ }
+@@ -240,7 +354,15 @@ static inline void atomic64_add(long i,
+ */
+ static inline void atomic64_sub(long i, atomic64_t *v)
+ {
+- asm volatile(LOCK_PREFIX "subq %1,%0"
++ asm volatile(LOCK_PREFIX "subq %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "addq %1,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
+ : "=m" (v->counter)
+ : "er" (i), "m" (v->counter));
+ }
+@@ -258,7 +380,16 @@ static inline int atomic64_sub_and_test(
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1"
++ asm volatile(LOCK_PREFIX "subq %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "addq %2,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ "sete %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "er" (i), "m" (v->counter) : "memory");
+ return c;
+@@ -272,7 +403,19 @@ static inline int atomic64_sub_and_test(
+ */
+ static inline void atomic64_inc(atomic64_t *v)
+ {
+- asm volatile(LOCK_PREFIX "incq %0"
++ asm volatile(LOCK_PREFIX "incq %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "decq %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "=m" (v->counter)
+ : "m" (v->counter));
+ }
+@@ -285,7 +428,19 @@ static inline void atomic64_inc(atomic64
+ */
+ static inline void atomic64_dec(atomic64_t *v)
+ {
+- asm volatile(LOCK_PREFIX "decq %0"
++ asm volatile(LOCK_PREFIX "decq %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "incq %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "=m" (v->counter)
+ : "m" (v->counter));
+ }
+@@ -302,7 +457,20 @@ static inline int atomic64_dec_and_test(
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "decq %0; sete %1"
++ asm volatile(LOCK_PREFIX "decq %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "incq %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "m" (v->counter) : "memory");
+ return c != 0;
+@@ -320,7 +488,20 @@ static inline int atomic64_inc_and_test(
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "incq %0; sete %1"
++ asm volatile(LOCK_PREFIX "incq %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "int $4\n0:\n"
++ ".pushsection .fixup,\"ax\"\n"
++ "1: \n"
++ LOCK_PREFIX "decq %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "m" (v->counter) : "memory");
+ return c != 0;
+@@ -339,7 +520,16 @@ static inline int atomic64_add_negative(
+ {
+ unsigned char c;
+
+- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1"
++ asm volatile(LOCK_PREFIX "addq %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ LOCK_PREFIX "subq %2,%0\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
++ "sets %1\n"
+ : "=m" (v->counter), "=qm" (c)
+ : "er" (i), "m" (v->counter) : "memory");
+ return c;
+@@ -355,7 +545,15 @@ static inline int atomic64_add_negative(
+ static inline long atomic64_add_return(long i, atomic64_t *v)
+ {
+ long __i = i;
+- asm volatile(LOCK_PREFIX "xaddq %0, %1;"
++ asm volatile(LOCK_PREFIX "xaddq %0, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++ "jno 0f\n"
++ "movq %0, %1\n"
++ "int $4\n0:\n"
++ _ASM_EXTABLE(0b, 0b)
++#endif
++
+ : "+r" (i), "+m" (v->counter)
+ : : "memory");
+ return i + __i;
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/boot.h linux-2.6.28.8/arch/x86/include/asm/boot.h
+--- linux-2.6.28.8/arch/x86/include/asm/boot.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/boot.h 2009-02-21 09:37:48.000000000 -0500
+@@ -11,10 +11,15 @@
+ #define ASK_VGA 0xfffd /* ask for it at bootup */
+
+ /* Physical address where kernel should be loaded. */
+-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
++#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
+ + (CONFIG_PHYSICAL_ALIGN - 1)) \
+ & ~(CONFIG_PHYSICAL_ALIGN - 1))
+
++#ifndef __ASSEMBLY__
++extern unsigned char __LOAD_PHYSICAL_ADDR[];
++#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
++#endif
++
+ #ifdef CONFIG_X86_64
+ #define BOOT_HEAP_SIZE 0x7000
+ #define BOOT_STACK_SIZE 0x4000
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/cache.h linux-2.6.28.8/arch/x86/include/asm/cache.h
+--- linux-2.6.28.8/arch/x86/include/asm/cache.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/cache.h 2009-02-21 09:37:48.000000000 -0500
+@@ -6,6 +6,7 @@
+ #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+ #define __read_mostly __attribute__((__section__(".data.read_mostly")))
++#define __read_only __attribute__((__section__(".data.read_only")))
+
+ #ifdef CONFIG_X86_VSMP
+ /* vSMP Internode cacheline shift */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/checksum_32.h linux-2.6.28.8/arch/x86/include/asm/checksum_32.h
+--- linux-2.6.28.8/arch/x86/include/asm/checksum_32.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/checksum_32.h 2009-02-21 09:37:48.000000000 -0500
+@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_gene
+ int len, __wsum sum,
+ int *src_err_ptr, int *dst_err_ptr);
+
++asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
++ int len, __wsum sum,
++ int *src_err_ptr, int *dst_err_ptr);
++
++asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
++ int len, __wsum sum,
++ int *src_err_ptr, int *dst_err_ptr);
++
+ /*
+ * Note: when you get a NULL pointer exception here this means someone
+ * passed in an incorrect kernel address to one of these functions.
+@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_f
+ int *err_ptr)
+ {
+ might_sleep();
+- return csum_partial_copy_generic((__force void *)src, dst,
++ return csum_partial_copy_generic_from_user((__force void *)src, dst,
+ len, sum, err_ptr, NULL);
+ }
+
+@@ -177,7 +185,7 @@ static inline __wsum csum_and_copy_to_us
+ {
+ might_sleep();
+ if (access_ok(VERIFY_WRITE, dst, len))
+- return csum_partial_copy_generic(src, (__force void *)dst,
++ return csum_partial_copy_generic_to_user(src, (__force void *)dst,
+ len, sum, NULL, err_ptr);
+
+ if (len)
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/cpufeature.h linux-2.6.28.8/arch/x86/include/asm/cpufeature.h
+--- linux-2.6.28.8/arch/x86/include/asm/cpufeature.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/cpufeature.h 2009-02-21 09:37:48.000000000 -0500
+@@ -80,7 +80,6 @@
+ #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */
+ #define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* "" FXSAVE leaks FOP/FIP/FOP */
+ #define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */
+-#define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */
+ #define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */
+ #define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */
+ #define X86_FEATURE_SYSCALL32 (3*32+14) /* "" syscall in ia32 userspace */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/desc.h linux-2.6.28.8/arch/x86/include/asm/desc.h
+--- linux-2.6.28.8/arch/x86/include/asm/desc.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/desc.h 2009-02-21 09:37:48.000000000 -0500
+@@ -16,6 +16,7 @@ static inline void fill_ldt(struct desc_
+ desc->base1 = (info->base_addr & 0x00ff0000) >> 16;
+ desc->type = (info->read_exec_only ^ 1) << 1;
+ desc->type |= info->contents << 2;
++ desc->type |= info->seg_not_present ^ 1;
+ desc->s = 1;
+ desc->dpl = 0x3;
+ desc->p = info->seg_not_present ^ 1;
+@@ -32,16 +33,12 @@ static inline void fill_ldt(struct desc_
+ }
+
+ extern struct desc_ptr idt_descr;
+-extern gate_desc idt_table[];
+-
+-struct gdt_page {
+- struct desc_struct gdt[GDT_ENTRIES];
+-} __attribute__((aligned(PAGE_SIZE)));
+-DECLARE_PER_CPU(struct gdt_page, gdt_page);
++extern gate_desc idt_table[256];
+
++extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
+ static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
+ {
+- return per_cpu(gdt_page, cpu).gdt;
++ return cpu_gdt_table[cpu];
+ }
+
+ #ifdef CONFIG_X86_64
+@@ -115,19 +112,48 @@ static inline void paravirt_free_ldt(str
+ static inline void native_write_idt_entry(gate_desc *idt, int entry,
+ const gate_desc *gate)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ memcpy(&idt[entry], gate, sizeof(*gate));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry,
+ const void *desc)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ memcpy(&ldt[entry], desc, 8);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry,
+ const void *desc, int type)
+ {
+ unsigned int size;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ switch (type) {
+ case DESC_TSS:
+ size = sizeof(tss_desc);
+@@ -139,7 +165,17 @@ static inline void native_write_gdt_entr
+ size = sizeof(struct desc_struct);
+ break;
+ }
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ memcpy(&gdt[entry], desc, size);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
+@@ -211,7 +247,19 @@ static inline void native_set_ldt(const
+
+ static inline void native_load_tr_desc(void)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ static inline void native_load_gdt(const struct desc_ptr *dtr)
+@@ -246,8 +294,19 @@ static inline void native_load_tls(struc
+ unsigned int i;
+ struct desc_struct *gdt = get_cpu_gdt_table(cpu);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
+ gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ #define _LDT_empty(info) \
+@@ -381,6 +440,18 @@ static inline void set_system_intr_gate_
+ _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
+ }
+
++#ifdef CONFIG_X86_32
++static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
++{
++ struct desc_struct d;
++
++ if (likely(limit))
++ limit = (limit - 1UL) >> PAGE_SHIFT;
++ pack_descriptor(&d, base, limit, 0xFB, 0xC);
++ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
++}
++#endif
++
+ #else
+ /*
+ * GET_DESC_BASE reads the descriptor base of the specified segment.
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/e820.h linux-2.6.28.8/arch/x86/include/asm/e820.h
+--- linux-2.6.28.8/arch/x86/include/asm/e820.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/e820.h 2009-02-21 09:37:48.000000000 -0500
+@@ -134,7 +134,7 @@ extern char *memory_setup(void);
+ #define ISA_END_ADDRESS 0x100000
+ #define is_ISA_range(s, e) ((s) >= ISA_START_ADDRESS && (e) < ISA_END_ADDRESS)
+
+-#define BIOS_BEGIN 0x000a0000
++#define BIOS_BEGIN 0x000c0000
+ #define BIOS_END 0x00100000
+
+ #ifdef __KERNEL__
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/elf.h linux-2.6.28.8/arch/x86/include/asm/elf.h
+--- linux-2.6.28.8/arch/x86/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500
+@@ -252,7 +252,25 @@ extern int force_personality32;
+ the loader. We need to make sure that it is out of the way of the program
+ that it will "exec", and that there is sufficient room for the brk. */
+
++#ifdef CONFIG_PAX_SEGMEXEC
++#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
++#else
+ #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++#ifdef CONFIG_X86_32
++#define PAX_ELF_ET_DYN_BASE 0x10000000UL
++
++#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
++#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
++#else
++#define PAX_ELF_ET_DYN_BASE 0x400000UL
++
++#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32)
++#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32)
++#endif
++#endif
+
+ /* This yields a mask that user programs can use to figure out what
+ instruction set this CPU supports. This could be done in user space,
+@@ -304,8 +322,7 @@ do { \
+ #define ARCH_DLINFO \
+ do { \
+ if (vdso_enabled) \
+- NEW_AUX_ENT(AT_SYSINFO_EHDR, \
+- (unsigned long)current->mm->context.vdso); \
++ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);\
+ } while (0)
+
+ #define AT_SYSINFO 32
+@@ -316,7 +333,7 @@ do { \
+
+ #endif /* !CONFIG_X86_32 */
+
+-#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso)
++#define VDSO_CURRENT_BASE (current->mm->context.vdso)
+
+ #define VDSO_ENTRY \
+ ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
+@@ -330,7 +347,4 @@ extern int arch_setup_additional_pages(s
+ extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
+ #define compat_arch_setup_additional_pages syscall32_setup_pages
+
+-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+-#define arch_randomize_brk arch_randomize_brk
+-
+ #endif /* _ASM_X86_ELF_H */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/futex.h linux-2.6.28.8/arch/x86/include/asm/futex.h
+--- linux-2.6.28.8/arch/x86/include/asm/futex.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/futex.h 2009-02-21 09:37:48.000000000 -0500
+@@ -11,6 +11,40 @@
+ #include <asm/processor.h>
+ #include <asm/system.h>
+
++#ifdef CONFIG_X86_32
++#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
++ asm volatile( \
++ "movw\t%w6, %%ds\n" \
++ "1:\t" insn "\n" \
++ "2:\tpushl\t%%ss\n" \
++ "\tpopl\t%%ds\n" \
++ "\t.section .fixup,\"ax\"\n" \
++ "3:\tmov\t%3, %1\n" \
++ "\tjmp\t2b\n" \
++ "\t.previous\n" \
++ _ASM_EXTABLE(1b, 3b) \
++ : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
++ : "i" (-EFAULT), "0" (oparg), "1" (0), "r" (__USER_DS))
++
++#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
++ asm volatile("movw\t%w7, %%es\n" \
++ "1:\tmovl\t%%es:%2, %0\n" \
++ "\tmovl\t%0, %3\n" \
++ "\t" insn "\n" \
++ "2:\t" LOCK_PREFIX "cmpxchgl %3, %%es:%2\n"\
++ "\tjnz\t1b\n" \
++ "3:\tpushl\t%%ss\n" \
++ "\tpopl\t%%es\n" \
++ "\t.section .fixup,\"ax\"\n" \
++ "4:\tmov\t%5, %1\n" \
++ "\tjmp\t3b\n" \
++ "\t.previous\n" \
++ _ASM_EXTABLE(1b, 4b) \
++ _ASM_EXTABLE(2b, 4b) \
++ : "=&a" (oldval), "=&r" (ret), \
++ "+m" (*uaddr), "=&r" (tem) \
++ : "r" (oparg), "i" (-EFAULT), "1" (0), "r" (__USER_DS))
++#else
+ #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
+ asm volatile("1:\t" insn "\n" \
+ "2:\t.section .fixup,\"ax\"\n" \
+@@ -36,8 +70,9 @@
+ : "=&a" (oldval), "=&r" (ret), \
+ "+m" (*uaddr), "=&r" (tem) \
+ : "r" (oparg), "i" (-EFAULT), "1" (0))
++#endif
+
+-static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
++static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+ {
+ int op = (encoded_op >> 28) & 7;
+ int cmp = (encoded_op >> 24) & 15;
+@@ -61,11 +96,20 @@ static inline int futex_atomic_op_inuser
+
+ switch (op) {
+ case FUTEX_OP_SET:
++#ifdef CONFIG_X86_32
++ __futex_atomic_op1("xchgl %0, %%ds:%2", ret, oldval, uaddr, oparg);
++#else
+ __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
++#endif
+ break;
+ case FUTEX_OP_ADD:
++#ifdef CONFIG_X86_32
++ __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %%ds:%2", ret, oldval,
++ uaddr, oparg);
++#else
+ __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
+ uaddr, oparg);
++#endif
+ break;
+ case FUTEX_OP_OR:
+ __futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, oparg);
+@@ -109,7 +153,7 @@ static inline int futex_atomic_op_inuser
+ return ret;
+ }
+
+-static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval,
++static inline int futex_atomic_cmpxchg_inatomic(u32 __user *uaddr, int oldval,
+ int newval)
+ {
+
+@@ -122,14 +166,27 @@ static inline int futex_atomic_cmpxchg_i
+ if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
+ return -EFAULT;
+
+- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n"
++ asm volatile(
++#ifdef CONFIG_X86_32
++ "\tmovw %w5, %%ds\n"
++ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n"
++ "2:\tpushl %%ss\n"
++ "\tpopl %%ds\n"
++ "\t.section .fixup, \"ax\"\n"
++#else
++ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n"
+ "2:\t.section .fixup, \"ax\"\n"
++#endif
+ "3:\tmov %2, %0\n"
+ "\tjmp 2b\n"
+ "\t.previous\n"
+ _ASM_EXTABLE(1b, 3b)
+ : "=a" (oldval), "+m" (*uaddr)
++#ifdef CONFIG_X86_32
++ : "i" (-EFAULT), "r" (newval), "0" (oldval), "r" (__USER_DS)
++#else
+ : "i" (-EFAULT), "r" (newval), "0" (oldval)
++#endif
+ : "memory"
+ );
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/i387.h linux-2.6.28.8/arch/x86/include/asm/i387.h
+--- linux-2.6.28.8/arch/x86/include/asm/i387.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/i387.h 2009-02-21 09:37:48.000000000 -0500
+@@ -197,13 +197,8 @@ static inline void restore_fpu(struct ta
+ }
+
+ /* We need a safe address that is cheap to find and that is already
+- in L1 during context switch. The best choices are unfortunately
+- different for UP and SMP */
+-#ifdef CONFIG_SMP
+-#define safe_address (__per_cpu_offset[0])
+-#else
+-#define safe_address (kstat_cpu(0).cpustat.user)
+-#endif
++ in L1 during context switch. */
++#define safe_address (init_tss[smp_processor_id()].x86_tss.sp0)
+
+ /*
+ * These must be called with preempt disabled
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/io_64.h linux-2.6.28.8/arch/x86/include/asm/io_64.h
+--- linux-2.6.28.8/arch/x86/include/asm/io_64.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/io_64.h 2009-02-21 09:37:48.000000000 -0500
+@@ -158,6 +158,17 @@ static inline void *phys_to_virt(unsigne
+ }
+ #endif
+
++#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
++static inline int valid_phys_addr_range (unsigned long addr, size_t count)
++{
++ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
++}
++
++static inline int valid_mmap_phys_addr_range (unsigned long pfn, size_t count)
++{
++ return (pfn + (count >> PAGE_SHIFT)) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
++}
++
+ /*
+ * Change "struct page" to physical address.
+ */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/irqflags.h linux-2.6.28.8/arch/x86/include/asm/irqflags.h
+--- linux-2.6.28.8/arch/x86/include/asm/irqflags.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/irqflags.h 2009-02-21 09:37:48.000000000 -0500
+@@ -141,6 +141,8 @@ static inline unsigned long __raw_local_
+ #define INTERRUPT_RETURN iret
+ #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
+ #define GET_CR0_INTO_EAX movl %cr0, %eax
++#define GET_CR0_INTO_EDX movl %cr0, %edx
++#define SET_CR0_FROM_EDX movl %edx, %cr0
+ #endif
+
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/kmap_types.h linux-2.6.28.8/arch/x86/include/asm/kmap_types.h
+--- linux-2.6.28.8/arch/x86/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500
+@@ -21,7 +21,8 @@ D(9) KM_IRQ0,
+ D(10) KM_IRQ1,
+ D(11) KM_SOFTIRQ0,
+ D(12) KM_SOFTIRQ1,
+-D(13) KM_TYPE_NR
++D(13) KM_CLEARPAGE,
++D(14) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/kvm_host.h linux-2.6.28.8/arch/x86/include/asm/kvm_host.h
+--- linux-2.6.28.8/arch/x86/include/asm/kvm_host.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/kvm_host.h 2009-02-21 09:37:48.000000000 -0500
+@@ -479,7 +479,7 @@ struct kvm_x86_ops {
+ int (*get_tdp_level)(void);
+ };
+
+-extern struct kvm_x86_ops *kvm_x86_ops;
++extern const struct kvm_x86_ops *kvm_x86_ops;
+
+ int kvm_mmu_module_init(void);
+ void kvm_mmu_module_exit(void);
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/linkage.h linux-2.6.28.8/arch/x86/include/asm/linkage.h
+--- linux-2.6.28.8/arch/x86/include/asm/linkage.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/linkage.h 2009-02-21 09:37:48.000000000 -0500
+@@ -7,6 +7,11 @@
+ #ifdef CONFIG_X86_64
+ #define __ALIGN .p2align 4,,15
+ #define __ALIGN_STR ".p2align 4,,15"
++#else
++#ifdef CONFIG_X86_ALIGNMENT_16
++#define __ALIGN .align 16,0x90
++#define __ALIGN_STR ".align 16,0x90"
++#endif
+ #endif
+
+ #ifdef CONFIG_X86_32
+@@ -52,10 +57,5 @@
+
+ #endif
+
+-#ifdef CONFIG_X86_ALIGNMENT_16
+-#define __ALIGN .align 16,0x90
+-#define __ALIGN_STR ".align 16,0x90"
+-#endif
+-
+ #endif /* _ASM_X86_LINKAGE_H */
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/local.h linux-2.6.28.8/arch/x86/include/asm/local.h
+--- linux-2.6.28.8/arch/x86/include/asm/local.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/local.h 2009-02-21 09:37:48.000000000 -0500
+@@ -18,26 +18,90 @@ typedef struct {
+
+ static inline void local_inc(local_t *l)
+ {
+- asm volatile(_ASM_INC "%0"
++ asm volatile(_ASM_INC "%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_DEC "%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (l->a.counter));
+ }
+
+ static inline void local_dec(local_t *l)
+ {
+- asm volatile(_ASM_DEC "%0"
++ asm volatile(_ASM_DEC "%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_INC "%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (l->a.counter));
+ }
+
+ static inline void local_add(long i, local_t *l)
+ {
+- asm volatile(_ASM_ADD "%1,%0"
++ asm volatile(_ASM_ADD "%1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_SUB "%1,%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (l->a.counter)
+ : "ir" (i));
+ }
+
+ static inline void local_sub(long i, local_t *l)
+ {
+- asm volatile(_ASM_SUB "%1,%0"
++ asm volatile(_ASM_SUB "%1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_ADD "%1,%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (l->a.counter)
+ : "ir" (i));
+ }
+@@ -55,7 +119,24 @@ static inline int local_sub_and_test(lon
+ {
+ unsigned char c;
+
+- asm volatile(_ASM_SUB "%2,%0; sete %1"
++ asm volatile(_ASM_SUB "%2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_ADD "%2,%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "+m" (l->a.counter), "=qm" (c)
+ : "ir" (i) : "memory");
+ return c;
+@@ -73,7 +154,24 @@ static inline int local_dec_and_test(loc
+ {
+ unsigned char c;
+
+- asm volatile(_ASM_DEC "%0; sete %1"
++ asm volatile(_ASM_DEC "%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_INC "%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "+m" (l->a.counter), "=qm" (c)
+ : : "memory");
+ return c != 0;
+@@ -91,7 +189,24 @@ static inline int local_inc_and_test(loc
+ {
+ unsigned char c;
+
+- asm volatile(_ASM_INC "%0; sete %1"
++ asm volatile(_ASM_INC "%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_DEC "%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sete %1\n"
+ : "+m" (l->a.counter), "=qm" (c)
+ : : "memory");
+ return c != 0;
+@@ -110,7 +225,24 @@ static inline int local_add_negative(lon
+ {
+ unsigned char c;
+
+- asm volatile(_ASM_ADD "%2,%0; sets %1"
++ asm volatile(_ASM_ADD "%2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_SUB "%2,%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "sets %1\n"
+ : "+m" (l->a.counter), "=qm" (c)
+ : "ir" (i) : "memory");
+ return c;
+@@ -133,7 +265,23 @@ static inline long local_add_return(long
+ #endif
+ /* Modern 486+ processor */
+ __i = i;
+- asm volatile(_ASM_XADD "%0, %1;"
++ asm volatile(_ASM_XADD "%0, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ _ASM_MOV "%0,%1\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+r" (i), "+m" (l->a.counter)
+ : : "memory");
+ return i + __i;
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h
+--- linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h 2009-02-21 09:37:48.000000000 -0500
+@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32
+ __asm__ __volatile__(APM_DO_ZERO_SEGS
+ "pushl %%edi\n\t"
+ "pushl %%ebp\n\t"
+- "lcall *%%cs:apm_bios_entry\n\t"
++ "lcall *%%ss:apm_bios_entry\n\t"
+ "setc %%al\n\t"
+ "popl %%ebp\n\t"
+ "popl %%edi\n\t"
+@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_as
+ __asm__ __volatile__(APM_DO_ZERO_SEGS
+ "pushl %%edi\n\t"
+ "pushl %%ebp\n\t"
+- "lcall *%%cs:apm_bios_entry\n\t"
++ "lcall *%%ss:apm_bios_entry\n\t"
+ "setc %%bl\n\t"
+ "popl %%ebp\n\t"
+ "popl %%edi\n\t"
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/mman.h linux-2.6.28.8/arch/x86/include/asm/mman.h
+--- linux-2.6.28.8/arch/x86/include/asm/mman.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/mman.h 2009-02-21 09:37:48.000000000 -0500
+@@ -17,4 +17,14 @@
+ #define MCL_CURRENT 1 /* lock all current mappings */
+ #define MCL_FUTURE 2 /* lock all future mappings */
+
++#ifdef __KERNEL__
++#ifndef __ASSEMBLY__
++#ifdef CONFIG_X86_32
++#define arch_mmap_check i386_mmap_check
++int i386_mmap_check(unsigned long addr, unsigned long len,
++ unsigned long flags);
++#endif
++#endif
++#endif
++
+ #endif /* _ASM_X86_MMAN_H */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h
+--- linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h 2009-02-21 09:37:48.000000000 -0500
+@@ -33,6 +33,22 @@ static inline void switch_mm(struct mm_s
+ */
+ if (unlikely(prev->context.ldt != next->context.ldt))
+ load_LDT_nolock(&next->context);
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
++ if (!nx_enabled) {
++ smp_mb__before_clear_bit();
++ cpu_clear(cpu, prev->context.cpu_user_cs_mask);
++ smp_mb__after_clear_bit();
++ cpu_set(cpu, next->context.cpu_user_cs_mask);
++ }
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
++ prev->context.user_cs_limit != next->context.user_cs_limit))
++ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
++#endif
++
+ }
+ #ifdef CONFIG_SMP
+ else {
+@@ -45,6 +61,19 @@ static inline void switch_mm(struct mm_s
+ */
+ load_cr3(next->pgd);
+ load_LDT_nolock(&next->context);
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!nx_enabled)
++ cpu_set(cpu, next->context.cpu_user_cs_mask);
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && nx_enabled))
++#endif
++ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
++#endif
++
+ }
+ }
+ #endif
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/mmu.h linux-2.6.28.8/arch/x86/include/asm/mmu.h
+--- linux-2.6.28.8/arch/x86/include/asm/mmu.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/mmu.h 2009-02-21 09:37:48.000000000 -0500
+@@ -9,10 +9,23 @@
+ * we put the segment information here.
+ */
+ typedef struct {
+- void *ldt;
++ struct desc_struct *ldt;
+ int size;
+ struct mutex lock;
+- void *vdso;
++ unsigned long vdso;
++
++#ifdef CONFIG_X86_32
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ unsigned long user_cs_base;
++ unsigned long user_cs_limit;
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
++ cpumask_t cpu_user_cs_mask;
++#endif
++
++#endif
++#endif
++
+ } mm_context_t;
+
+ #ifdef CONFIG_SMP
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/module.h linux-2.6.28.8/arch/x86/include/asm/module.h
+--- linux-2.6.28.8/arch/x86/include/asm/module.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/module.h 2009-02-21 09:37:48.000000000 -0500
+@@ -74,7 +74,12 @@ struct mod_arch_specific {};
+ # else
+ # define MODULE_STACKSIZE ""
+ # endif
+-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE
++# ifdef CONFIG_GRKERNSEC
++# define MODULE_GRSEC "GRSECURITY "
++# else
++# define MODULE_GRSEC ""
++# endif
++# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE MODULE_GRSEC
+ #endif
+
+ #endif /* _ASM_X86_MODULE_H */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/page_32.h linux-2.6.28.8/arch/x86/include/asm/page_32.h
+--- linux-2.6.28.8/arch/x86/include/asm/page_32.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/page_32.h 2009-02-21 09:37:48.000000000 -0500
+@@ -13,6 +13,23 @@
+ */
+ #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
+
++#ifdef CONFIG_PAX_KERNEXEC
++#ifndef __ASSEMBLY__
++extern unsigned char MODULES_VADDR[];
++extern unsigned char MODULES_END[];
++extern unsigned char KERNEL_TEXT_OFFSET[];
++#define ktla_ktva(addr) (addr + (unsigned long)KERNEL_TEXT_OFFSET)
++#define ktva_ktla(addr) (addr - (unsigned long)KERNEL_TEXT_OFFSET)
++#endif
++#else
++#define ktla_ktva(addr) (addr)
++#define ktva_ktla(addr) (addr)
++#endif
++
++#ifdef CONFIG_PAX_PAGEEXEC
++#define CONFIG_ARCH_TRACK_EXEC_LIMIT 1
++#endif
++
+ #ifdef CONFIG_4KSTACKS
+ #define THREAD_ORDER 0
+ #else
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/page_64.h linux-2.6.28.8/arch/x86/include/asm/page_64.h
+--- linux-2.6.28.8/arch/x86/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500
+@@ -49,6 +49,9 @@
+ #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
+ #define __START_KERNEL_map _AC(0xffffffff80000000, UL)
+
++#define ktla_ktva(addr) (addr)
++#define ktva_ktla(addr) (addr)
++
+ /* See Documentation/x86_64/mm.txt for a description of the memory map. */
+ #define __PHYSICAL_MASK_SHIFT 46
+ #define __VIRTUAL_MASK_SHIFT 48
+@@ -101,5 +104,6 @@ extern void init_extra_mapping_wb(unsign
+ #define pfn_valid(pfn) ((pfn) < max_pfn)
+ #endif
+
++#define nx_enabled (1)
+
+ #endif /* _ASM_X86_PAGE_64_H */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/paravirt.h linux-2.6.28.8/arch/x86/include/asm/paravirt.h
+--- linux-2.6.28.8/arch/x86/include/asm/paravirt.h 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/paravirt.h 2009-03-07 10:29:51.000000000 -0500
+@@ -1557,7 +1557,7 @@ static inline unsigned long __raw_local_
+ #define PV_RESTORE_REGS popl %edx; popl %ecx; popl %edi; popl %eax
+ #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
+ #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
+-#define PARA_INDIRECT(addr) *%cs:addr
++#define PARA_INDIRECT(addr) *%ss:addr
+ #endif
+
+ #define INTERRUPT_RETURN \
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/pda.h linux-2.6.28.8/arch/x86/include/asm/pda.h
+--- linux-2.6.28.8/arch/x86/include/asm/pda.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/pda.h 2009-02-21 09:37:48.000000000 -0500
+@@ -16,11 +16,9 @@ struct x8664_pda {
+ unsigned long oldrsp; /* 24 user rsp for system call */
+ int irqcount; /* 32 Irq nesting counter. Starts -1 */
+ unsigned int cpunumber; /* 36 Logical CPU number */
+-#ifdef CONFIG_CC_STACKPROTECTOR
+ unsigned long stack_canary; /* 40 stack canary value */
+ /* gcc-ABI: this canary MUST be at
+ offset 40!!! */
+-#endif
+ char *irqstackptr;
+ short nodenumber; /* number of current node (32k max) */
+ short in_bootmem; /* pda lives in bootmem */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/percpu.h linux-2.6.28.8/arch/x86/include/asm/percpu.h
+--- linux-2.6.28.8/arch/x86/include/asm/percpu.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/percpu.h 2009-02-21 09:37:48.000000000 -0500
+@@ -93,6 +93,12 @@ DECLARE_PER_CPU(struct x8664_pda, pda);
+
+ #define __my_cpu_offset x86_read_percpu(this_cpu_off)
+
++#include <asm-generic/sections.h>
++#include <linux/threads.h>
++#define __per_cpu_offset __per_cpu_offset
++extern unsigned long __per_cpu_offset[NR_CPUS];
++#define per_cpu_offset(x) (__per_cpu_offset[x] + (unsigned long)__per_cpu_start)
++
+ /* fs segment starts at (positive) offset == __per_cpu_offset[cpu] */
+ #define __percpu_seg "%%fs:"
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgalloc.h linux-2.6.28.8/arch/x86/include/asm/pgalloc.h
+--- linux-2.6.28.8/arch/x86/include/asm/pgalloc.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/pgalloc.h 2009-02-21 09:37:48.000000000 -0500
+@@ -52,7 +52,7 @@ static inline void pmd_populate_kernel(s
+ pmd_t *pmd, pte_t *pte)
+ {
+ paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
+- set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
++ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
+ }
+
+ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h
+--- linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h 2009-02-21 09:37:48.000000000 -0500
+@@ -18,7 +18,19 @@ static inline void native_set_pte(pte_t
+
+ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ *pmdp = pmd;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h
+--- linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500
+@@ -25,8 +25,6 @@
+ struct mm_struct;
+ struct vm_area_struct;
+
+-extern pgd_t swapper_pg_dir[1024];
+-
+ static inline void pgtable_cache_init(void) { }
+ static inline void check_pgt_cache(void) { }
+ void paging_init(void);
+@@ -46,6 +44,11 @@ extern void set_pmd_pfn(unsigned long, u
+ # include <asm/pgtable-2level-defs.h>
+ #endif
+
++extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
++#ifdef CONFIG_X86_PAE
++extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
++#endif
++
+ #define PGDIR_SIZE (1UL << PGDIR_SHIFT)
+ #define PGDIR_MASK (~(PGDIR_SIZE - 1))
+
+@@ -83,7 +86,7 @@ extern void set_pmd_pfn(unsigned long, u
+ #undef TEST_ACCESS_OK
+
+ /* The boot page tables (all created as a single array) */
+-extern unsigned long pg0[];
++extern pte_t pg0[];
+
+ #define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
+
+@@ -175,6 +178,9 @@ do { \
+
+ #endif /* !__ASSEMBLY__ */
+
++#define HAVE_ARCH_UNMAPPED_AREA
++#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
++
+ /*
+ * kern_addr_valid() is (1) for FLATMEM and (0) for
+ * SPARSEMEM and DISCONTIGMEM
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h
+--- linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h 2009-02-21 09:37:48.000000000 -0500
+@@ -70,12 +70,36 @@ static inline void native_set_pte_atomic
+
+ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ static inline void native_set_pud(pud_t *pudp, pud_t pud)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ /*
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h
+--- linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h 2009-02-21 09:37:48.000000000 -0500
+@@ -15,9 +15,12 @@
+
+ extern pud_t level3_kernel_pgt[512];
+ extern pud_t level3_ident_pgt[512];
++extern pud_t level3_vmalloc_pgt[512];
++extern pud_t level3_vmemmap_pgt[512];
+ extern pmd_t level2_kernel_pgt[512];
+ extern pmd_t level2_fixmap_pgt[512];
+-extern pmd_t level2_ident_pgt[512];
++extern pmd_t level2_ident_pgt[512*4];
++extern pte_t level1_fixmap_pgt[512];
+ extern pgd_t init_level4_pgt[];
+
+ #define swapper_pg_dir init_level4_pgt
+@@ -106,7 +109,19 @@ static inline pte_t native_ptep_get_and_
+
+ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ *pmdp = pmd;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ static inline void native_pmd_clear(pmd_t *pmd)
+@@ -158,17 +173,17 @@ static inline void native_pgd_clear(pgd_
+
+ static inline int pgd_bad(pgd_t pgd)
+ {
+- return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
++ return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
+ }
+
+ static inline int pud_bad(pud_t pud)
+ {
+- return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
++ return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
+ }
+
+ static inline int pmd_bad(pmd_t pmd)
+ {
+- return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
++ return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
+ }
+
+ #define pte_none(x) (!pte_val((x)))
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable.h linux-2.6.28.8/arch/x86/include/asm/pgtable.h
+--- linux-2.6.28.8/arch/x86/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500
+@@ -14,12 +14,11 @@
+ #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
+ #define _PAGE_BIT_PAT 7 /* on 4KB pages */
+ #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
+-#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
++#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */
+ #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
+ #define _PAGE_BIT_UNUSED3 11
+ #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
+-#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
+-#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
++#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL
+ #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
+
+ #define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
+@@ -31,7 +30,6 @@
+ #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
+ #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
+ #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
+-#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
+ #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
+ #define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
+ #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
+@@ -43,7 +41,7 @@
+ #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+ #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
+ #else
+-#define _PAGE_NX (_AT(pteval_t, 0))
++#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
+ #endif
+
+ /* If _PAGE_PRESENT is clear, we use these: */
+@@ -83,6 +81,9 @@
+ #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
+ _PAGE_ACCESSED)
+
++#define PAGE_READONLY_NOEXEC PAGE_READONLY
++#define PAGE_SHARED_NOEXEC PAGE_SHARED
++
+ #define __PAGE_KERNEL_EXEC \
+ (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
+ #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
+@@ -94,7 +95,7 @@
+ #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
+ #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
+ #define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
+-#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
++#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_RO | _PAGE_PCD | _PAGE_PWT | _PAGE_USER)
+ #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
+ #define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
+ #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
+@@ -153,7 +154,7 @@
+ * bits are combined, this will alow user to access the high address mapped
+ * VDSO in the presence of CONFIG_COMPAT_VDSO
+ */
+-#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
++#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
+ #define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
+ #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
+ #endif
+@@ -170,10 +171,17 @@ extern unsigned long empty_zero_page[PAG
+ extern spinlock_t pgd_lock;
+ extern struct list_head pgd_list;
+
++extern pteval_t __supported_pte_mask;
++
+ /*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
++static inline int pte_user(pte_t pte)
++{
++ return pte_val(pte) & _PAGE_USER;
++}
++
+ static inline int pte_dirty(pte_t pte)
+ {
+ return pte_flags(pte) & _PAGE_DIRTY;
+@@ -242,9 +250,29 @@ static inline pte_t pte_wrprotect(pte_t
+ return __pte(pte_val(pte) & ~_PAGE_RW);
+ }
+
++static inline pte_t pte_mkread(pte_t pte)
++{
++ return __pte(pte_val(pte) | _PAGE_USER);
++}
++
+ static inline pte_t pte_mkexec(pte_t pte)
+ {
+- return __pte(pte_val(pte) & ~_PAGE_NX);
++#ifdef CONFIG_X86_PAE
++ if (__supported_pte_mask & _PAGE_NX)
++ return __pte(pte_val(pte) & ~(pteval_t)_PAGE_NX);
++ else
++#endif
++ return __pte(pte_val(pte) | _PAGE_USER);
++}
++
++static inline pte_t pte_exprotect(pte_t pte)
++{
++#ifdef CONFIG_X86_PAE
++ if (__supported_pte_mask & _PAGE_NX)
++ return __pte(pte_val(pte) | _PAGE_NX);
++ else
++#endif
++ return __pte(pte_val(pte) & ~_PAGE_USER);
+ }
+
+ static inline pte_t pte_mkdirty(pte_t pte)
+@@ -287,8 +315,6 @@ static inline pte_t pte_mkspecial(pte_t
+ return __pte(pte_val(pte) | _PAGE_SPECIAL);
+ }
+
+-extern pteval_t __supported_pte_mask;
+-
+ static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
+ {
+ return __pte((((phys_addr_t)page_nr << PAGE_SHIFT) |
+@@ -552,7 +578,19 @@ static inline void ptep_set_wrprotect(st
+ */
+ static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
+ {
+- memcpy(dst, src, count * sizeof(pgd_t));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
++ memcpy(dst, src, count * sizeof(pgd_t));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/processor.h linux-2.6.28.8/arch/x86/include/asm/processor.h
+--- linux-2.6.28.8/arch/x86/include/asm/processor.h 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/processor.h 2009-03-07 10:29:51.000000000 -0500
+@@ -271,7 +271,7 @@ struct tss_struct {
+
+ } ____cacheline_aligned;
+
+-DECLARE_PER_CPU(struct tss_struct, init_tss);
++extern struct tss_struct init_tss[NR_CPUS];
+
+ /*
+ * Save the original ist values for checking stack pointers during debugging
+@@ -822,11 +822,20 @@ static inline void spin_lock_prefetch(co
+ * User space process size: 3GB (default).
+ */
+ #define TASK_SIZE PAGE_OFFSET
++
++#ifdef CONFIG_PAX_SEGMEXEC
++#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2)
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
++#else
+ #define STACK_TOP TASK_SIZE
+-#define STACK_TOP_MAX STACK_TOP
++#endif
++#define STACK_TOP_MAX TASK_SIZE
+
+ #define INIT_THREAD { \
+- .sp0 = sizeof(init_stack) + (long)&init_stack, \
++ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
+ .vm86_info = NULL, \
+ .sysenter_cs = __KERNEL_CS, \
+ .io_bitmap_ptr = NULL, \
+@@ -841,7 +850,7 @@ static inline void spin_lock_prefetch(co
+ */
+ #define INIT_TSS { \
+ .x86_tss = { \
+- .sp0 = sizeof(init_stack) + (long)&init_stack, \
++ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
+ .ss0 = __KERNEL_DS, \
+ .ss1 = __KERNEL_CS, \
+ .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
+@@ -852,11 +861,7 @@ static inline void spin_lock_prefetch(co
+ extern unsigned long thread_saved_pc(struct task_struct *tsk);
+
+ #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
+-#define KSTK_TOP(info) \
+-({ \
+- unsigned long *__ptr = (unsigned long *)(info); \
+- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
+-})
++#define KSTK_TOP(info) ((info)->task.thread.sp0)
+
+ /*
+ * The below -8 is to reserve 8 bytes on top of the ring0 stack.
+@@ -871,7 +876,7 @@ extern unsigned long thread_saved_pc(str
+ #define task_pt_regs(task) \
+ ({ \
+ struct pt_regs *__regs__; \
+- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
++ __regs__ = (struct pt_regs *)((task)->thread.sp0); \
+ __regs__ - 1; \
+ })
+
+@@ -887,7 +892,7 @@ extern unsigned long thread_saved_pc(str
+ * space during mmap's.
+ */
+ #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
+- 0xc0000000 : 0xFFFFe000)
++ 0xc0000000 : 0xFFFFf000)
+
+ #define TASK_SIZE (test_thread_flag(TIF_IA32) ? \
+ IA32_PAGE_OFFSET : TASK_SIZE64)
+@@ -924,6 +929,10 @@ extern void start_thread(struct pt_regs
+ */
+ #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
+
++#ifdef CONFIG_PAX_SEGMEXEC
++#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
++#endif
++
+ #define KSTK_EIP(task) (task_pt_regs(task)->ip)
+
+ /* Get/set a process' ability to use the timestamp counter instruction */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/ptrace.h linux-2.6.28.8/arch/x86/include/asm/ptrace.h
+--- linux-2.6.28.8/arch/x86/include/asm/ptrace.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/ptrace.h 2009-02-21 09:37:48.000000000 -0500
+@@ -187,28 +187,29 @@ static inline unsigned long regs_return_
+ }
+
+ /*
+- * user_mode_vm(regs) determines whether a register set came from user mode.
++ * user_mode(regs) determines whether a register set came from user mode.
+ * This is true if V8086 mode was enabled OR if the register set was from
+ * protected mode with RPL-3 CS value. This tricky test checks that with
+ * one comparison. Many places in the kernel can bypass this full check
+- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
++ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
++ * be used.
+ */
+-static inline int user_mode(struct pt_regs *regs)
++static inline int user_mode_novm(struct pt_regs *regs)
+ {
+ #ifdef CONFIG_X86_32
+ return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
+ #else
+- return !!(regs->cs & 3);
++ return !!(regs->cs & SEGMENT_RPL_MASK);
+ #endif
+ }
+
+-static inline int user_mode_vm(struct pt_regs *regs)
++static inline int user_mode(struct pt_regs *regs)
+ {
+ #ifdef CONFIG_X86_32
+ return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
+ USER_RPL;
+ #else
+- return user_mode(regs);
++ return user_mode_novm(regs);
+ #endif
+ }
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/reboot.h linux-2.6.28.8/arch/x86/include/asm/reboot.h
+--- linux-2.6.28.8/arch/x86/include/asm/reboot.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/reboot.h 2009-02-21 09:37:48.000000000 -0500
+@@ -16,6 +16,6 @@ extern struct machine_ops machine_ops;
+
+ void native_machine_crash_shutdown(struct pt_regs *regs);
+ void native_machine_shutdown(void);
+-void machine_real_restart(const unsigned char *code, int length);
++void machine_real_restart(const unsigned char *code, unsigned int length);
+
+ #endif /* _ASM_X86_REBOOT_H */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/rwsem.h linux-2.6.28.8/arch/x86/include/asm/rwsem.h
+--- linux-2.6.28.8/arch/x86/include/asm/rwsem.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/rwsem.h 2009-02-21 09:37:48.000000000 -0500
+@@ -106,10 +106,26 @@ static inline void __down_read(struct rw
+ {
+ asm volatile("# beginning down_read\n\t"
+ LOCK_PREFIX " incl (%%eax)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "decl (%%eax)\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ /* adds 0x00000001, returns the old value */
+- " jns 1f\n"
++ " jns 2f\n"
+ " call call_rwsem_down_read_failed\n"
+- "1:\n\t"
++ "2:\n\t"
+ "# ending down_read\n\t"
+ : "+m" (sem->count)
+ : "a" (sem)
+@@ -124,13 +140,29 @@ static inline int __down_read_trylock(st
+ __s32 result, tmp;
+ asm volatile("# beginning __down_read_trylock\n\t"
+ " movl %0,%1\n\t"
+- "1:\n\t"
++ "2:\n\t"
+ " movl %1,%2\n\t"
+ " addl %3,%2\n\t"
+- " jle 2f\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ "subl %3,%2\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ " jle 3f\n\t"
+ LOCK_PREFIX " cmpxchgl %2,%0\n\t"
+- " jnz 1b\n\t"
+- "2:\n\t"
++ " jnz 2b\n\t"
++ "3:\n\t"
+ "# ending __down_read_trylock\n\t"
+ : "+m" (sem->count), "=&a" (result), "=&r" (tmp)
+ : "i" (RWSEM_ACTIVE_READ_BIAS)
+@@ -148,12 +180,28 @@ static inline void __down_write_nested(s
+ tmp = RWSEM_ACTIVE_WRITE_BIAS;
+ asm volatile("# beginning down_write\n\t"
+ LOCK_PREFIX " xadd %%edx,(%%eax)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ "movl %%edx,(%%eax)\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ /* subtract 0x0000ffff, returns the old value */
+ " testl %%edx,%%edx\n\t"
+ /* was the count 0 before? */
+- " jz 1f\n"
++ " jz 2f\n"
+ " call call_rwsem_down_write_failed\n"
+- "1:\n"
++ "2:\n"
+ "# ending down_write"
+ : "+m" (sem->count), "=d" (tmp)
+ : "a" (sem), "1" (tmp)
+@@ -186,10 +234,26 @@ static inline void __up_read(struct rw_s
+ __s32 tmp = -RWSEM_ACTIVE_READ_BIAS;
+ asm volatile("# beginning __up_read\n\t"
+ LOCK_PREFIX " xadd %%edx,(%%eax)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ "movl %%edx,(%%eax)\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ /* subtracts 1, returns the old value */
+- " jns 1f\n\t"
++ " jns 2f\n\t"
+ " call call_rwsem_wake\n"
+- "1:\n"
++ "2:\n"
+ "# ending __up_read\n"
+ : "+m" (sem->count), "=d" (tmp)
+ : "a" (sem), "1" (tmp)
+@@ -204,11 +268,27 @@ static inline void __up_write(struct rw_
+ asm volatile("# beginning __up_write\n\t"
+ " movl %2,%%edx\n\t"
+ LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ "movl %%edx,(%%eax)\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ /* tries to transition
+ 0xffff0001 -> 0x00000000 */
+- " jz 1f\n"
++ " jz 2f\n"
+ " call call_rwsem_wake\n"
+- "1:\n\t"
++ "2:\n\t"
+ "# ending __up_write\n"
+ : "+m" (sem->count)
+ : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS)
+@@ -222,10 +302,26 @@ static inline void __downgrade_write(str
+ {
+ asm volatile("# beginning __downgrade_write\n\t"
+ LOCK_PREFIX " addl %2,(%%eax)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "subl %2,(%%eax)\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ /* transitions 0xZZZZ0001 -> 0xYYYY0001 */
+- " jns 1f\n\t"
++ " jns 2f\n\t"
+ " call call_rwsem_downgrade_wake\n"
+- "1:\n\t"
++ "2:\n\t"
+ "# ending __downgrade_write\n"
+ : "+m" (sem->count)
+ : "a" (sem), "i" (-RWSEM_WAITING_BIAS)
+@@ -237,7 +333,23 @@ static inline void __downgrade_write(str
+ */
+ static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
+ {
+- asm volatile(LOCK_PREFIX "addl %1,%0"
++ asm volatile(LOCK_PREFIX "addl %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "subl %1,%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (sem->count)
+ : "ir" (delta));
+ }
+@@ -249,7 +361,23 @@ static inline int rwsem_atomic_update(in
+ {
+ int tmp = delta;
+
+- asm volatile(LOCK_PREFIX "xadd %0,%1"
++ asm volatile(LOCK_PREFIX "xadd %0,%1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ "movl %0,%1\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+r" (tmp), "+m" (sem->count)
+ : : "memory");
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/segment.h linux-2.6.28.8/arch/x86/include/asm/segment.h
+--- linux-2.6.28.8/arch/x86/include/asm/segment.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/segment.h 2009-02-21 09:37:48.000000000 -0500
+@@ -88,13 +88,19 @@
+ #define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14)
+ #define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)
+
+-#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15)
++#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15)
+ #ifdef CONFIG_SMP
+ #define __KERNEL_PERCPU (GDT_ENTRY_PERCPU * 8)
+ #else
+ #define __KERNEL_PERCPU 0
+ #endif
+
++#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE + 16)
++#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
++
++#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE + 17)
++#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
++
+ #define GDT_ENTRY_DOUBLEFAULT_TSS 31
+
+ /*
+@@ -132,7 +138,7 @@
+ */
+
+ /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
+-#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
++#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
+
+
+ #else
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/spinlock.h linux-2.6.28.8/arch/x86/include/asm/spinlock.h
+--- linux-2.6.28.8/arch/x86/include/asm/spinlock.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/spinlock.h 2009-02-21 09:37:48.000000000 -0500
+@@ -310,18 +310,50 @@ static inline int __raw_write_can_lock(r
+ static inline void __raw_read_lock(raw_rwlock_t *rw)
+ {
+ asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t"
+- "jns 1f\n"
+- "call __read_lock_failed\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
+ "1:\n"
++ LOCK_PREFIX " addl $1,(%0)\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "jns 2f\n"
++ "call __read_lock_failed\n\t"
++ "2:\n"
+ ::LOCK_PTR_REG (rw) : "memory");
+ }
+
+ static inline void __raw_write_lock(raw_rwlock_t *rw)
+ {
+ asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t"
+- "jz 1f\n"
+- "call __write_lock_failed\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
+ "1:\n"
++ LOCK_PREFIX " addl %1,(%0)\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ "jz 2f\n"
++ "call __write_lock_failed\n\t"
++ "2:\n"
+ ::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory");
+ }
+
+@@ -348,12 +380,45 @@ static inline int __raw_write_trylock(ra
+
+ static inline void __raw_read_unlock(raw_rwlock_t *rw)
+ {
+- asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory");
++ asm volatile(LOCK_PREFIX "incl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "decl %0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
++ :"+m" (rw->lock) : : "memory");
+ }
+
+ static inline void __raw_write_unlock(raw_rwlock_t *rw)
+ {
+- asm volatile(LOCK_PREFIX "addl %1, %0"
++ asm volatile(LOCK_PREFIX "addl %1, %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++#ifdef CONFIG_X86_32
++ "into\n0:\n"
++#else
++ "jno 0f\n"
++ "int $4\n0:\n"
++#endif
++ ".pushsection .fixup,\"ax\"\n"
++ "1:\n"
++ LOCK_PREFIX "subl %1,%0\n"
++ "jmp 0b\n"
++ ".popsection\n"
++ _ASM_EXTABLE(0b, 1b)
++#endif
++
+ : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory");
+ }
+
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/system.h linux-2.6.28.8/arch/x86/include/asm/system.h
+--- linux-2.6.28.8/arch/x86/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500
+@@ -95,6 +95,8 @@ do { \
+ ".globl thread_return\n" \
+ "thread_return:\n\t" \
+ "movq %%gs:%P[pda_pcurrent],%%rsi\n\t" \
++ "movq %P[task_canary](%%rsi),%%r8\n\t" \
++ "movq %%r8,%%gs:%P[pda_canary]\n\t" \
+ "movq %P[thread_info](%%rsi),%%r8\n\t" \
+ LOCK_PREFIX "btr %[tif_fork],%P[ti_flags](%%r8)\n\t" \
+ "movq %%rax,%%rdi\n\t" \
+@@ -106,7 +108,9 @@ do { \
+ [ti_flags] "i" (offsetof(struct thread_info, flags)), \
+ [tif_fork] "i" (TIF_FORK), \
+ [thread_info] "i" (offsetof(struct task_struct, stack)), \
+- [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)) \
++ [task_canary] "i" (offsetof(struct task_struct, stack_canary)), \
++ [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)), \
++ [pda_canary] "i" (offsetof(struct x8664_pda, stack_canary))\
+ : "memory", "cc" __EXTRA_CLOBBER)
+ #endif
+
+@@ -169,7 +173,7 @@ static inline unsigned long get_limit(un
+ {
+ unsigned long __limit;
+ asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
+- return __limit + 1;
++ return __limit;
+ }
+
+ static inline void native_clts(void)
+@@ -295,6 +299,21 @@ static inline void native_wbinvd(void)
+
+ #define stts() write_cr0(read_cr0() | X86_CR0_TS)
+
++#define pax_open_kernel(cr0) \
++do { \
++ typecheck(unsigned long, cr0); \
++ preempt_disable(); \
++ cr0 = read_cr0(); \
++ write_cr0(cr0 & ~X86_CR0_WP); \
++} while (0)
++
++#define pax_close_kernel(cr0) \
++do { \
++ typecheck(unsigned long, cr0); \
++ write_cr0(cr0); \
++ preempt_enable_no_resched(); \
++} while (0)
++
+ #endif /* __KERNEL__ */
+
+ static inline void clflush(volatile void *__p)
+@@ -309,7 +328,7 @@ void enable_hlt(void);
+
+ void cpu_idle_wait(void);
+
+-extern unsigned long arch_align_stack(unsigned long sp);
++#define arch_align_stack(x) ((x) & ~0xfUL)
+ extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
+
+ void default_idle(void);
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h
+--- linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h 2009-02-21 09:37:48.000000000 -0500
+@@ -10,6 +10,8 @@
+ #include <linux/lockdep.h>
+ #include <asm/page.h>
+
++#define set_fs(x) (current_thread_info()->addr_limit = (x))
++
+ /*
+ * Copy To/From Userspace
+ */
+diff -urNp linux-2.6.28.8/arch/x86/include/asm/uaccess.h linux-2.6.28.8/arch/x86/include/asm/uaccess.h
+--- linux-2.6.28.8/arch/x86/include/asm/uaccess.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/include/asm/uaccess.h 2009-02-21 09:37:48.000000000 -0500
+@@ -10,6 +10,7 @@
+ #include <linux/string.h>
+ #include <asm/asm.h>
+ #include <asm/page.h>
++#include <asm/segment.h>
+
+ #define VERIFY_READ 0
+ #define VERIFY_WRITE 1
+@@ -29,7 +30,12 @@
+
+ #define get_ds() (KERNEL_DS)
+ #define get_fs() (current_thread_info()->addr_limit)
++#ifdef CONFIG_X86_32
++void __set_fs(mm_segment_t x, int cpu);
++void set_fs(mm_segment_t x);
++#else
+ #define set_fs(x) (current_thread_info()->addr_limit = (x))
++#endif
+
+ #define segment_eq(a, b) ((a).seg == (b).seg)
+
+@@ -186,9 +192,12 @@ extern int __get_user_bad(void);
+
+ #ifdef CONFIG_X86_32
+ #define __put_user_u64(x, addr, err) \
+- asm volatile("1: movl %%eax,0(%2)\n" \
+- "2: movl %%edx,4(%2)\n" \
++ asm volatile(" movw %w5,%%ds\n" \
++ "1: movl %%eax,%%ds:0(%2)\n" \
++ "2: movl %%edx,%%ds:4(%2)\n" \
+ "3:\n" \
++ " pushl %%ss\n" \
++ " popl %%ds\n" \
+ ".section .fixup,\"ax\"\n" \
+ "4: movl %3,%0\n" \
+ " jmp 3b\n" \
+@@ -196,7 +205,8 @@ extern int __get_user_bad(void);
+ _ASM_EXTABLE(1b, 4b) \
+ _ASM_EXTABLE(2b, 4b) \
+ : "=r" (err) \
+- : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err))
++ : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err), \
++ "r"(__USER_DS))
+
+ #define __put_user_x8(x, ptr, __ret_pu) \
+ asm volatile("call __put_user_8" : "=a" (__ret_pu) \
+@@ -336,6 +346,22 @@ do { \
+ } \
+ } while (0)
+
++#ifdef CONFIG_X86_32
++#define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
++ asm volatile(" movw %w5,%%ds\n" \
++ "1: mov"itype" %%ds:%2,%"rtype"1\n" \
++ "2:\n" \
++ " pushl %%ss\n" \
++ " popl %%ds\n" \
++ ".section .fixup,\"ax\"\n" \
++ "3: movl %3,%0\n" \
++ " xor"itype" %"rtype"1,%"rtype"1\n" \
++ " jmp 2b\n" \
++ ".previous\n" \
++ _ASM_EXTABLE(1b, 3b) \
++ : "=r" (err), ltype (x) \
++ : "m" (__m(addr)), "i" (errret), "0" (err), "r"(__USER_DS))
++#else
+ #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
+ asm volatile("1: mov"itype" %2,%"rtype"1\n" \
+ "2:\n" \
+@@ -347,6 +373,7 @@ do { \
+ _ASM_EXTABLE(1b, 3b) \
+ : "=r" (err), ltype(x) \
+ : "m" (__m(addr)), "i" (errret), "0" (err))
++#endif
+
+ #define __put_user_nocheck(x, ptr, size) \
+ ({ \
+@@ -373,6 +400,22 @@ struct __large_struct { unsigned long bu
+ * we do not write to any memory gcc knows about, so there are no
+ * aliasing issues.
+ */
++#ifdef CONFIG_X86_32
++#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
++ asm volatile(" movw %w5,%%ds\n" \
++ "1: mov"itype" %"rtype"1,%%ds:%2\n" \
++ "2:\n" \
++ " pushl %%ss\n" \
++ " popl %%ds\n" \
++ ".section .fixup,\"ax\"\n" \
++ "3: movl %3,%0\n" \
++ " jmp 2b\n" \
++ ".previous\n" \
++ _ASM_EXTABLE(1b, 3b) \
++ : "=r"(err) \
++ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err),\
++ "r"(__USER_DS))
++#else
+ #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
+ asm volatile("1: mov"itype" %"rtype"1,%2\n" \
+ "2:\n" \
+@@ -383,6 +426,7 @@ struct __large_struct { unsigned long bu
+ _ASM_EXTABLE(1b, 3b) \
+ : "=r"(err) \
+ : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
++#endif
+ /**
+ * __get_user: - Get a simple variable from user space, with less checking.
+ * @x: Variable to store result.
+@@ -443,6 +487,7 @@ extern struct movsl_mask {
+
+ #define ARCH_HAS_NOCACHE_UACCESS 1
+
++#define ARCH_HAS_SORT_EXTABLE
+ #ifdef CONFIG_X86_32
+ # include "uaccess_32.h"
+ #else
+diff -urNp linux-2.6.28.8/arch/x86/Kconfig linux-2.6.28.8/arch/x86/Kconfig
+--- linux-2.6.28.8/arch/x86/Kconfig 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/Kconfig 2009-02-21 09:37:48.000000000 -0500
+@@ -935,7 +935,7 @@ config PAGE_OFFSET
+ hex
+ default 0xB0000000 if VMSPLIT_3G_OPT
+ default 0x80000000 if VMSPLIT_2G
+- default 0x78000000 if VMSPLIT_2G_OPT
++ default 0x70000000 if VMSPLIT_2G_OPT
+ default 0x40000000 if VMSPLIT_1G
+ default 0xC0000000
+ depends on X86_32
+@@ -1337,8 +1337,7 @@ config KEXEC_JUMP
+ config PHYSICAL_START
+ hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
+ default "0x1000000" if X86_NUMAQ
+- default "0x200000" if X86_64
+- default "0x100000"
++ default "0x200000"
+ help
+ This gives the physical address where the kernel is loaded.
+
+@@ -1430,9 +1429,9 @@ config HOTPLUG_CPU
+ Say N if you want to disable CPU hotplug.
+
+ config COMPAT_VDSO
+- def_bool y
++ def_bool n
+ prompt "Compat VDSO support"
+- depends on X86_32 || IA32_EMULATION
++ depends on (X86_32 || IA32_EMULATION) && !PAX_NOEXEC
+ help
+ Map the 32-bit VDSO to the predictable old-style address too.
+ ---help---
+diff -urNp linux-2.6.28.8/arch/x86/Kconfig.cpu linux-2.6.28.8/arch/x86/Kconfig.cpu
+--- linux-2.6.28.8/arch/x86/Kconfig.cpu 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/Kconfig.cpu 2009-02-21 09:37:48.000000000 -0500
+@@ -331,7 +331,7 @@ config X86_PPRO_FENCE
+
+ config X86_F00F_BUG
+ def_bool y
+- depends on M586MMX || M586TSC || M586 || M486 || M386
++ depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC
+
+ config X86_WP_WORKS_OK
+ def_bool y
+@@ -351,7 +351,7 @@ config X86_POPAD_OK
+
+ config X86_ALIGNMENT_16
+ def_bool y
+- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
++ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+
+ config X86_INTEL_USERCOPY
+ def_bool y
+@@ -397,7 +397,7 @@ config X86_CMPXCHG64
+ # generates cmov.
+ config X86_CMOV
+ def_bool y
+- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64)
++ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64)
+
+ config X86_MINIMUM_CPU_FAMILY
+ int
+diff -urNp linux-2.6.28.8/arch/x86/Kconfig.debug linux-2.6.28.8/arch/x86/Kconfig.debug
+--- linux-2.6.28.8/arch/x86/Kconfig.debug 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/Kconfig.debug 2009-02-21 09:37:48.000000000 -0500
+@@ -107,7 +107,7 @@ config X86_PTDUMP
+ config DEBUG_RODATA
+ bool "Write protect kernel read-only data structures"
+ default y
+- depends on DEBUG_KERNEL
++ depends on DEBUG_KERNEL && BROKEN
+ help
+ Mark the kernel read-only data as write-protected in the pagetables,
+ in order to catch accidental (and incorrect) writes to such const
+diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/boot.c linux-2.6.28.8/arch/x86/kernel/acpi/boot.c
+--- linux-2.6.28.8/arch/x86/kernel/acpi/boot.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/acpi/boot.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1645,7 +1645,7 @@ static struct dmi_system_id __initdata a
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
+ },
+ },
+- {}
++ { NULL, NULL, {{0, {0}}}, NULL}
+ };
+
+ /*
+diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S
+--- linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-21 09:37:48.000000000 -0500
+@@ -104,7 +104,7 @@ _start:
+ movl %eax, %ecx
+ orl %edx, %ecx
+ jz 1f
+- movl $0xc0000080, %ecx
++ mov $MSR_EFER, %ecx
+ wrmsr
+ 1:
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c
+--- linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c 2009-02-21 09:37:48.000000000 -0500
+@@ -37,6 +37,10 @@ int acpi_save_state_mem(void)
+ {
+ struct wakeup_header *header;
+
++#if defined(CONFIG_64BIT) && defined(CONFIG_SMP) && defined(CONFIG_PAX_KERNEXEC)
++ unsigned long cr0;
++#endif
++
+ if (!acpi_realmode) {
+ printk(KERN_ERR "Could not allocate memory during boot, "
+ "S3 disabled\n");
+@@ -99,8 +103,18 @@ int acpi_save_state_mem(void)
+ header->trampoline_segment = setup_trampoline() >> 4;
+ #ifdef CONFIG_SMP
+ stack_start.sp = temp_stack + sizeof(temp_stack);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ early_gdt_descr.address =
+ (unsigned long)get_cpu_gdt_table(smp_processor_id());
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ #endif
+ initial_code = (unsigned long)wakeup_long64;
+ saved_magic = 0x123456789abcdef0;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S
+--- linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S 2009-02-21 09:37:48.000000000 -0500
+@@ -30,13 +30,11 @@ wakeup_pmode_return:
+ # and restore the stack ... but you need gdt for this to work
+ movl saved_context_esp, %esp
+
+- movl %cs:saved_magic, %eax
+- cmpl $0x12345678, %eax
++ cmpl $0x12345678, saved_magic
+ jne bogus_magic
+
+ # jump to place where we left off
+- movl saved_eip, %eax
+- jmp *%eax
++ jmp *(saved_eip)
+
+ bogus_magic:
+ jmp bogus_magic
+diff -urNp linux-2.6.28.8/arch/x86/kernel/alternative.c linux-2.6.28.8/arch/x86/kernel/alternative.c
+--- linux-2.6.28.8/arch/x86/kernel/alternative.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/alternative.c 2009-02-21 09:37:48.000000000 -0500
+@@ -393,7 +393,7 @@ void apply_paravirt(struct paravirt_patc
+
+ BUG_ON(p->len > MAX_PATCH_LEN);
+ /* prep the buffer with the original instructions */
+- memcpy(insnbuf, p->instr, p->len);
++ memcpy(insnbuf, ktla_ktva(p->instr), p->len);
+ used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
+ (unsigned long)p->instr, p->len);
+
+@@ -473,11 +473,26 @@ void __init alternative_instructions(voi
+ * instructions. And on the local CPU you need to be protected again NMI or MCE
+ * handlers seeing an inconsistent instruction while you patch.
+ */
+-void *text_poke_early(void *addr, const void *opcode, size_t len)
++void *__kprobes text_poke_early(void *addr, const void *opcode, size_t len)
+ {
+ unsigned long flags;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ local_irq_save(flags);
+- memcpy(addr, opcode, len);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ memcpy(ktla_ktva(addr), opcode, len);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ local_irq_restore(flags);
+ sync_core();
+ /* Could also do a CLFLUSH here to speed up CPU recovery; but
+@@ -498,33 +513,27 @@ void *text_poke_early(void *addr, const
+ */
+ void *__kprobes text_poke(void *addr, const void *opcode, size_t len)
+ {
+- unsigned long flags;
+- char *vaddr;
+- int nr_pages = 2;
++ unsigned char *vaddr = ktla_ktva(addr);
+ struct page *pages[2];
+- int i;
++ size_t i;
++
++ if (!core_kernel_text((unsigned long)addr)
+
+- if (!core_kernel_text((unsigned long)addr)) {
+- pages[0] = vmalloc_to_page(addr);
+- pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
++#if defined(CONFIG_X86_32) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ && (vaddr < MODULES_VADDR || MODULES_END < vaddr)
++#endif
++
++ ) {
++ pages[0] = vmalloc_to_page(vaddr);
++ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
+ } else {
+- pages[0] = virt_to_page(addr);
++ pages[0] = virt_to_page(vaddr);
+ WARN_ON(!PageReserved(pages[0]));
+- pages[1] = virt_to_page(addr + PAGE_SIZE);
++ pages[1] = virt_to_page(vaddr + PAGE_SIZE);
+ }
+ BUG_ON(!pages[0]);
+- if (!pages[1])
+- nr_pages = 1;
+- vaddr = vmap(pages, nr_pages, VM_MAP, PAGE_KERNEL);
+- BUG_ON(!vaddr);
+- local_irq_save(flags);
+- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
+- local_irq_restore(flags);
+- vunmap(vaddr);
+- sync_core();
+- /* Could also do a CLFLUSH here to speed up CPU recovery; but
+- that causes hangs on some VIA CPUs. */
++ text_poke_early(addr, opcode, len);
+ for (i = 0; i < len; i++)
+- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
++ BUG_ON((vaddr)[i] != ((unsigned char *)opcode)[i]);
+ return addr;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/kernel/apm_32.c linux-2.6.28.8/arch/x86/kernel/apm_32.c
+--- linux-2.6.28.8/arch/x86/kernel/apm_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/apm_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -407,7 +407,7 @@ static DECLARE_WAIT_QUEUE_HEAD(apm_waitq
+ static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
+ static struct apm_user *user_list;
+ static DEFINE_SPINLOCK(user_list_lock);
+-static const struct desc_struct bad_bios_desc = { { { 0, 0x00409200 } } };
++static const struct desc_struct bad_bios_desc = { { { 0, 0x00409300 } } };
+
+ static const char driver_version[] = "1.16ac"; /* no spaces */
+
+@@ -602,19 +602,42 @@ static u8 apm_bios_call(u32 func, u32 eb
+ struct desc_struct save_desc_40;
+ struct desc_struct *gdt;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ cpus = apm_save_cpus();
+
+ cpu = get_cpu();
+ gdt = get_cpu_gdt_table(cpu);
+ save_desc_40 = gdt[0x40 / 8];
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ gdt[0x40 / 8] = bad_bios_desc;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ apm_irq_save(flags);
+ APM_DO_SAVE_SEGS;
+ apm_bios_call_asm(func, ebx_in, ecx_in, eax, ebx, ecx, edx, esi);
+ APM_DO_RESTORE_SEGS;
+ apm_irq_restore(flags);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ gdt[0x40 / 8] = save_desc_40;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ put_cpu();
+ apm_restore_cpus(cpus);
+
+@@ -645,19 +668,42 @@ static u8 apm_bios_call_simple(u32 func,
+ struct desc_struct save_desc_40;
+ struct desc_struct *gdt;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ cpus = apm_save_cpus();
+
+ cpu = get_cpu();
+ gdt = get_cpu_gdt_table(cpu);
+ save_desc_40 = gdt[0x40 / 8];
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ gdt[0x40 / 8] = bad_bios_desc;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ apm_irq_save(flags);
+ APM_DO_SAVE_SEGS;
+ error = apm_bios_call_simple_asm(func, ebx_in, ecx_in, eax);
+ APM_DO_RESTORE_SEGS;
+ apm_irq_restore(flags);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ gdt[0x40 / 8] = save_desc_40;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ put_cpu();
+ apm_restore_cpus(cpus);
+ return error;
+@@ -929,7 +975,7 @@ recalc:
+
+ static void apm_power_off(void)
+ {
+- unsigned char po_bios_call[] = {
++ const unsigned char po_bios_call[] = {
+ 0xb8, 0x00, 0x10, /* movw $0x1000,ax */
+ 0x8e, 0xd0, /* movw ax,ss */
+ 0xbc, 0x00, 0xf0, /* movw $0xf000,sp */
+@@ -1876,7 +1922,10 @@ static const struct file_operations apm_
+ static struct miscdevice apm_device = {
+ APM_MINOR_DEV,
+ "apm_bios",
+- &apm_bios_fops
++ &apm_bios_fops,
++ {NULL, NULL},
++ NULL,
++ NULL
+ };
+
+
+@@ -2197,7 +2246,7 @@ static struct dmi_system_id __initdata a
+ { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), },
+ },
+
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}
+ };
+
+ /*
+@@ -2215,6 +2264,10 @@ static int __init apm_init(void)
+ struct desc_struct *gdt;
+ int err;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ dmi_check_system(apm_dmi_table);
+
+ if (apm_info.bios.version == 0 || paravirt_enabled() || machine_is_olpc()) {
+@@ -2288,9 +2341,18 @@ static int __init apm_init(void)
+ * This is for buggy BIOS's that refer to (real mode) segment 0x40
+ * even though they are called in protected mode.
+ */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ set_base(bad_bios_desc, __va((unsigned long)0x40 << 4));
+ _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4));
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ /*
+ * Set up the long jump entry point to the APM BIOS, which is called
+ * from inline assembly.
+@@ -2309,6 +2371,11 @@ static int __init apm_init(void)
+ * code to that CPU.
+ */
+ gdt = get_cpu_gdt_table(0);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ set_base(gdt[APM_CS >> 3],
+ __va((unsigned long)apm_info.bios.cseg << 4));
+ set_base(gdt[APM_CS_16 >> 3],
+@@ -2316,6 +2383,10 @@ static int __init apm_init(void)
+ set_base(gdt[APM_DS >> 3],
+ __va((unsigned long)apm_info.bios.dseg << 4));
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ proc_create("apm", 0, NULL, &apm_file_ops);
+
+ kapmd_task = kthread_create(apm, NULL, "kapmd");
+diff -urNp linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c
+--- linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -100,6 +100,7 @@ void foo(void)
+ DEFINE(PTRS_PER_PTE, PTRS_PER_PTE);
+ DEFINE(PTRS_PER_PMD, PTRS_PER_PMD);
+ DEFINE(PTRS_PER_PGD, PTRS_PER_PGD);
++ DEFINE(PERCPU_MODULE_RESERVE, PERCPU_MODULE_RESERVE);
+
+ OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
+
+@@ -113,6 +114,7 @@ void foo(void)
+ OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
+ OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
+ OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
++ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
+ #endif
+
+ #ifdef CONFIG_XEN
+diff -urNp linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c
+--- linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -122,6 +122,7 @@ int main(void)
+ ENTRY(cr8);
+ BLANK();
+ #undef ENTRY
++ DEFINE(TSS_size, sizeof(struct tss_struct));
+ DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
+ BLANK();
+ DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
+diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/common.c linux-2.6.28.8/arch/x86/kernel/cpu/common.c
+--- linux-2.6.28.8/arch/x86/kernel/cpu/common.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/cpu/common.c 2009-02-21 09:37:48.000000000 -0500
+@@ -2,7 +2,6 @@
+ #include <linux/kernel.h>
+ #include <linux/sched.h>
+ #include <linux/string.h>
+-#include <linux/bootmem.h>
+ #include <linux/bitops.h>
+ #include <linux/module.h>
+ #include <linux/kgdb.h>
+@@ -41,59 +40,6 @@
+
+ static struct cpu_dev *this_cpu __cpuinitdata;
+
+-#ifdef CONFIG_X86_64
+-/* We need valid kernel segments for data and code in long mode too
+- * IRET will check the segment types kkeil 2000/10/28
+- * Also sysret mandates a special GDT layout
+- */
+-/* The TLS descriptors are currently at a different place compared to i386.
+- Hopefully nobody expects them at a fixed place (Wine?) */
+-DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = {
+- [GDT_ENTRY_KERNEL32_CS] = { { { 0x0000ffff, 0x00cf9b00 } } },
+- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00af9b00 } } },
+- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9300 } } },
+- [GDT_ENTRY_DEFAULT_USER32_CS] = { { { 0x0000ffff, 0x00cffb00 } } },
+- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff300 } } },
+- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00affb00 } } },
+-} };
+-#else
+-DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
+- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00cf9a00 } } },
+- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9200 } } },
+- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00cffa00 } } },
+- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff200 } } },
+- /*
+- * Segments used for calling PnP BIOS have byte granularity.
+- * They code segments and data segments have fixed 64k limits,
+- * the transfer segment sizes are set at run time.
+- */
+- /* 32-bit code */
+- [GDT_ENTRY_PNPBIOS_CS32] = { { { 0x0000ffff, 0x00409a00 } } },
+- /* 16-bit code */
+- [GDT_ENTRY_PNPBIOS_CS16] = { { { 0x0000ffff, 0x00009a00 } } },
+- /* 16-bit data */
+- [GDT_ENTRY_PNPBIOS_DS] = { { { 0x0000ffff, 0x00009200 } } },
+- /* 16-bit data */
+- [GDT_ENTRY_PNPBIOS_TS1] = { { { 0x00000000, 0x00009200 } } },
+- /* 16-bit data */
+- [GDT_ENTRY_PNPBIOS_TS2] = { { { 0x00000000, 0x00009200 } } },
+- /*
+- * The APM segments have byte granularity and their bases
+- * are set at run time. All have 64k limits.
+- */
+- /* 32-bit code */
+- [GDT_ENTRY_APMBIOS_BASE] = { { { 0x0000ffff, 0x00409a00 } } },
+- /* 16-bit code */
+- [GDT_ENTRY_APMBIOS_BASE+1] = { { { 0x0000ffff, 0x00009a00 } } },
+- /* data */
+- [GDT_ENTRY_APMBIOS_BASE+2] = { { { 0x0000ffff, 0x00409200 } } },
+-
+- [GDT_ENTRY_ESPFIX_SS] = { { { 0x00000000, 0x00c09200 } } },
+- [GDT_ENTRY_PERCPU] = { { { 0x00000000, 0x00000000 } } },
+-} };
+-#endif
+-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
+-
+ #ifdef CONFIG_X86_32
+ static int cachesize_override __cpuinitdata = -1;
+ static int disable_x86_serial_nr __cpuinitdata = 1;
+@@ -227,7 +173,7 @@ void switch_to_new_gdt(void)
+ {
+ struct desc_ptr gdt_descr;
+
+- gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id());
++ gdt_descr.address = (unsigned long)get_cpu_gdt_table(smp_processor_id());
+ gdt_descr.size = GDT_SIZE - 1;
+ load_gdt(&gdt_descr);
+ #ifdef CONFIG_X86_32
+@@ -687,6 +633,10 @@ static void __cpuinit identify_cpu(struc
+ * we do "generic changes."
+ */
+
++#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++ setup_clear_cpu_cap(X86_FEATURE_SEP);
++#endif
++
+ /* If the model name is still unset, do table lookup. */
+ if (!c->x86_model_id[0]) {
+ char *p;
+@@ -854,13 +804,13 @@ static __init int setup_disablecpuid(cha
+ }
+ __setup("clearcpuid=", setup_disablecpuid);
+
+-cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
++cpumask_t cpu_initialized = CPU_MASK_NONE;
+
+ #ifdef CONFIG_X86_64
+ struct x8664_pda **_cpu_pda __read_mostly;
+ EXPORT_SYMBOL(_cpu_pda);
+
+-struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
++struct desc_ptr idt_descr __read_only = { 256 * 16 - 1, (unsigned long) idt_table };
+
+ char boot_cpu_stack[IRQSTACKSIZE] __page_aligned_bss;
+
+@@ -959,7 +909,7 @@ struct pt_regs * __cpuinit idle_regs(str
+ void __cpuinit cpu_init(void)
+ {
+ int cpu = stack_smp_processor_id();
+- struct tss_struct *t = &per_cpu(init_tss, cpu);
++ struct tss_struct *t = init_tss + cpu;
+ struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu);
+ unsigned long v;
+ char *estacks = NULL;
+@@ -1080,7 +1030,7 @@ void __cpuinit cpu_init(void)
+ {
+ int cpu = smp_processor_id();
+ struct task_struct *curr = current;
+- struct tss_struct *t = &per_cpu(init_tss, cpu);
++ struct tss_struct *t = init_tss + cpu;
+ struct thread_struct *thread = &curr->thread;
+
+ if (cpu_test_and_set(cpu, cpu_initialized)) {
+diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+--- linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-21 09:37:48.000000000 -0500
+@@ -561,7 +561,7 @@ static const struct dmi_system_id sw_any
+ DMI_MATCH(DMI_PRODUCT_NAME, "X6DLP"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+ #endif
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
+--- linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-21 09:37:48.000000000 -0500
+@@ -225,7 +225,7 @@ static struct cpu_model models[] =
+ { &cpu_ids[CPU_MP4HT_D0], NULL, 0, NULL },
+ { &cpu_ids[CPU_MP4HT_E0], NULL, 0, NULL },
+
+- { NULL, }
++ { NULL, NULL, 0, NULL}
+ };
+ #undef _BANIAS
+ #undef BANIAS
+diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/intel.c linux-2.6.28.8/arch/x86/kernel/cpu/intel.c
+--- linux-2.6.28.8/arch/x86/kernel/cpu/intel.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/cpu/intel.c 2009-02-21 09:37:48.000000000 -0500
+@@ -72,7 +72,7 @@ static void __cpuinit trap_init_f00f_bug
+ * Update the IDT descriptor and reload the IDT so that
+ * it uses the read-only mapped virtual address.
+ */
+- idt_descr.address = fix_to_virt(FIX_F00F_IDT);
++ idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT);
+ load_idt(&idt_descr);
+ }
+ #endif
+diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c
+--- linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -678,6 +678,7 @@ static struct miscdevice mce_log_device
+ MISC_MCELOG_MINOR,
+ "mcelog",
+ &mce_chrdev_ops,
++ {NULL, NULL}, NULL, NULL
+ };
+
+ static unsigned long old_cr4 __initdata;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c
+--- linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-21 09:37:48.000000000 -0500
+@@ -31,11 +31,11 @@ static struct fixed_range_block fixed_ra
+ { MTRRfix64K_00000_MSR, 1 }, /* one 64k MTRR */
+ { MTRRfix16K_80000_MSR, 2 }, /* two 16k MTRRs */
+ { MTRRfix4K_C0000_MSR, 8 }, /* eight 4k MTRRs */
+- {}
++ { 0, 0 }
+ };
+
+ static unsigned long smp_changes_mask;
+-static struct mtrr_state mtrr_state = {};
++static struct mtrr_state mtrr_state;
+ static int mtrr_state_set;
+ u64 mtrr_tom2;
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/crash.c linux-2.6.28.8/arch/x86/kernel/crash.c
+--- linux-2.6.28.8/arch/x86/kernel/crash.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/crash.c 2009-02-21 09:37:48.000000000 -0500
+@@ -59,7 +59,7 @@ static int crash_nmi_callback(struct not
+ local_irq_disable();
+
+ #ifdef CONFIG_X86_32
+- if (!user_mode_vm(regs)) {
++ if (!user_mode(regs)) {
+ crash_fixup_ss_esp(&fixed_regs, regs);
+ regs = &fixed_regs;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/kernel/doublefault_32.c linux-2.6.28.8/arch/x86/kernel/doublefault_32.c
+--- linux-2.6.28.8/arch/x86/kernel/doublefault_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/doublefault_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -11,7 +11,7 @@
+
+ #define DOUBLEFAULT_STACKSIZE (1024)
+ static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
+-#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
++#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
+
+ #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
+
+@@ -21,7 +21,7 @@ static void doublefault_fn(void)
+ unsigned long gdt, tss;
+
+ store_gdt(&gdt_desc);
+- gdt = gdt_desc.address;
++ gdt = (unsigned long)gdt_desc.address;
+
+ printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
+
+@@ -60,10 +60,10 @@ struct tss_struct doublefault_tss __cach
+ /* 0x2 bit is always set */
+ .flags = X86_EFLAGS_SF | 0x2,
+ .sp = STACK_START,
+- .es = __USER_DS,
++ .es = __KERNEL_DS,
+ .cs = __KERNEL_CS,
+ .ss = __KERNEL_DS,
+- .ds = __USER_DS,
++ .ds = __KERNEL_DS,
+ .fs = __KERNEL_PERCPU,
+
+ .__cr3 = __pa_nodebug(swapper_pg_dir),
+diff -urNp linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c
+--- linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -238,11 +238,12 @@ void show_registers(struct pt_regs *regs
+ * When in-kernel, we also print out the stack and code at the
+ * time of the fault..
+ */
+- if (!user_mode_vm(regs)) {
++ if (!user_mode(regs)) {
+ unsigned int code_prologue = code_bytes * 43 / 64;
+ unsigned int code_len = code_bytes;
+ unsigned char c;
+ u8 *ip;
++ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]);
+
+ printk(KERN_EMERG "Stack:\n");
+ show_stack_log_lvl(NULL, regs, ®s->sp,
+@@ -250,10 +251,10 @@ void show_registers(struct pt_regs *regs
+
+ printk(KERN_EMERG "Code: ");
+
+- ip = (u8 *)regs->ip - code_prologue;
++ ip = (u8 *)regs->ip - code_prologue + cs_base;
+ if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
+ /* try starting at IP */
+- ip = (u8 *)regs->ip;
++ ip = (u8 *)regs->ip + cs_base;
+ code_len = code_len - code_prologue + 1;
+ }
+ for (i = 0; i < code_len; i++, ip++) {
+@@ -262,7 +263,7 @@ void show_registers(struct pt_regs *regs
+ printk(" Bad EIP value.");
+ break;
+ }
+- if (ip == (u8 *)regs->ip)
++ if (ip == (u8 *)regs->ip + cs_base)
+ printk("<%02x> ", c);
+ else
+ printk("%02x ", c);
+@@ -275,6 +276,7 @@ int is_valid_bugaddr(unsigned long ip)
+ {
+ unsigned short ud2;
+
++ ip = ktla_ktva(ip);
+ if (ip < PAGE_OFFSET)
+ return 0;
+ if (probe_kernel_address((unsigned short *)ip, ud2))
+@@ -410,7 +412,7 @@ die_nmi(char *str, struct pt_regs *regs,
+ * If we are in kernel we are probably nested up pretty bad
+ * and might aswell get out now while we still can:
+ */
+- if (!user_mode_vm(regs)) {
++ if (!user_mode(regs)) {
+ current->thread.trap_no = 2;
+ crash_kexec(regs);
+ }
+diff -urNp linux-2.6.28.8/arch/x86/kernel/efi_32.c linux-2.6.28.8/arch/x86/kernel/efi_32.c
+--- linux-2.6.28.8/arch/x86/kernel/efi_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/efi_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -38,70 +38,38 @@
+ */
+
+ static unsigned long efi_rt_eflags;
+-static pgd_t efi_bak_pg_dir_pointer[2];
++static pgd_t __initdata efi_bak_pg_dir_pointer[KERNEL_PGD_PTRS];
+
+-void efi_call_phys_prelog(void)
++void __init efi_call_phys_prelog(void)
+ {
+- unsigned long cr4;
+- unsigned long temp;
+ struct desc_ptr gdt_descr;
+
+ local_irq_save(efi_rt_eflags);
+
+- /*
+- * If I don't have PAE, I should just duplicate two entries in page
+- * directory. If I have PAE, I just need to duplicate one entry in
+- * page directory.
+- */
+- cr4 = read_cr4_safe();
+
+- if (cr4 & X86_CR4_PAE) {
+- efi_bak_pg_dir_pointer[0].pgd =
+- swapper_pg_dir[pgd_index(0)].pgd;
+- swapper_pg_dir[0].pgd =
+- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd;
+- } else {
+- efi_bak_pg_dir_pointer[0].pgd =
+- swapper_pg_dir[pgd_index(0)].pgd;
+- efi_bak_pg_dir_pointer[1].pgd =
+- swapper_pg_dir[pgd_index(0x400000)].pgd;
+- swapper_pg_dir[pgd_index(0)].pgd =
+- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd;
+- temp = PAGE_OFFSET + 0x400000;
+- swapper_pg_dir[pgd_index(0x400000)].pgd =
+- swapper_pg_dir[pgd_index(temp)].pgd;
+- }
++ clone_pgd_range(efi_bak_pg_dir_pointer, swapper_pg_dir, KERNEL_PGD_PTRS);
++ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY,
++ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY));
+
+ /*
+ * After the lock is released, the original page table is restored.
+ */
+ __flush_tlb_all();
+
+- gdt_descr.address = __pa(get_cpu_gdt_table(0));
++ gdt_descr.address = (struct desc_struct *)__pa(get_cpu_gdt_table(0));
+ gdt_descr.size = GDT_SIZE - 1;
+ load_gdt(&gdt_descr);
+ }
+
+-void efi_call_phys_epilog(void)
++void __init efi_call_phys_epilog(void)
+ {
+- unsigned long cr4;
+ struct desc_ptr gdt_descr;
+
+- gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
++ gdt_descr.address = get_cpu_gdt_table(0);
+ gdt_descr.size = GDT_SIZE - 1;
+ load_gdt(&gdt_descr);
+
+- cr4 = read_cr4_safe();
+-
+- if (cr4 & X86_CR4_PAE) {
+- swapper_pg_dir[pgd_index(0)].pgd =
+- efi_bak_pg_dir_pointer[0].pgd;
+- } else {
+- swapper_pg_dir[pgd_index(0)].pgd =
+- efi_bak_pg_dir_pointer[0].pgd;
+- swapper_pg_dir[pgd_index(0x400000)].pgd =
+- efi_bak_pg_dir_pointer[1].pgd;
+- }
++ clone_pgd_range(swapper_pg_dir, efi_bak_pg_dir_pointer, KERNEL_PGD_PTRS);
+
+ /*
+ * After the lock is released, the original page table is restored.
+diff -urNp linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S
+--- linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S 2009-02-21 09:37:48.000000000 -0500
+@@ -6,6 +6,7 @@
+ */
+
+ #include <linux/linkage.h>
++#include <linux/init.h>
+ #include <asm/page.h>
+
+ /*
+@@ -20,7 +21,7 @@
+ * service functions will comply with gcc calling convention, too.
+ */
+
+-.text
++__INIT
+ ENTRY(efi_call_phys)
+ /*
+ * 0. The function can only be called in Linux kernel. So CS has been
+@@ -36,9 +37,7 @@ ENTRY(efi_call_phys)
+ * The mapping of lower virtual memory has been created in prelog and
+ * epilog.
+ */
+- movl $1f, %edx
+- subl $__PAGE_OFFSET, %edx
+- jmp *%edx
++ jmp 1f-__PAGE_OFFSET
+ 1:
+
+ /*
+@@ -47,14 +46,8 @@ ENTRY(efi_call_phys)
+ * parameter 2, ..., param n. To make things easy, we save the return
+ * address of efi_call_phys in a global variable.
+ */
+- popl %edx
+- movl %edx, saved_return_addr
+- /* get the function pointer into ECX*/
+- popl %ecx
+- movl %ecx, efi_rt_function_ptr
+- movl $2f, %edx
+- subl $__PAGE_OFFSET, %edx
+- pushl %edx
++ popl (saved_return_addr)
++ popl (efi_rt_function_ptr)
+
+ /*
+ * 3. Clear PG bit in %CR0.
+@@ -73,9 +66,8 @@ ENTRY(efi_call_phys)
+ /*
+ * 5. Call the physical function.
+ */
+- jmp *%ecx
++ call *(efi_rt_function_ptr-__PAGE_OFFSET)
+
+-2:
+ /*
+ * 6. After EFI runtime service returns, control will return to
+ * following instruction. We'd better readjust stack pointer first.
+@@ -88,34 +80,27 @@ ENTRY(efi_call_phys)
+ movl %cr0, %edx
+ orl $0x80000000, %edx
+ movl %edx, %cr0
+- jmp 1f
+-1:
++
+ /*
+ * 8. Now restore the virtual mode from flat mode by
+ * adding EIP with PAGE_OFFSET.
+ */
+- movl $1f, %edx
+- jmp *%edx
++ jmp 1f+__PAGE_OFFSET
+ 1:
+
+ /*
+ * 9. Balance the stack. And because EAX contain the return value,
+ * we'd better not clobber it.
+ */
+- leal efi_rt_function_ptr, %edx
+- movl (%edx), %ecx
+- pushl %ecx
++ pushl (efi_rt_function_ptr)
+
+ /*
+- * 10. Push the saved return address onto the stack and return.
++ * 10. Return to the saved return address.
+ */
+- leal saved_return_addr, %edx
+- movl (%edx), %ecx
+- pushl %ecx
+- ret
++ jmpl *(saved_return_addr)
+ .previous
+
+-.data
++__INITDATA
+ saved_return_addr:
+ .long 0
+ efi_rt_function_ptr:
+diff -urNp linux-2.6.28.8/arch/x86/kernel/entry_32.S linux-2.6.28.8/arch/x86/kernel/entry_32.S
+--- linux-2.6.28.8/arch/x86/kernel/entry_32.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/entry_32.S 2009-02-21 09:37:48.000000000 -0500
+@@ -101,7 +101,7 @@
+ #define resume_userspace_sig resume_userspace
+ #endif
+
+-#define SAVE_ALL \
++#define __SAVE_ALL(_DS) \
+ cld; \
+ pushl %fs; \
+ CFI_ADJUST_CFA_OFFSET 4;\
+@@ -133,12 +133,26 @@
+ pushl %ebx; \
+ CFI_ADJUST_CFA_OFFSET 4;\
+ CFI_REL_OFFSET ebx, 0;\
+- movl $(__USER_DS), %edx; \
++ movl $(_DS), %edx; \
+ movl %edx, %ds; \
+ movl %edx, %es; \
+ movl $(__KERNEL_PERCPU), %edx; \
+ movl %edx, %fs
+
++#ifdef CONFIG_PAX_KERNEXEC
++#define SAVE_ALL \
++ __SAVE_ALL(__KERNEL_DS); \
++ GET_CR0_INTO_EDX; \
++ movl %edx, %esi; \
++ orl $X86_CR0_WP, %edx; \
++ xorl %edx, %esi; \
++ SET_CR0_FROM_EDX
++#elif defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++#define SAVE_ALL __SAVE_ALL(__KERNEL_DS)
++#else
++#define SAVE_ALL __SAVE_ALL(__USER_DS)
++#endif
++
+ #define RESTORE_INT_REGS \
+ popl %ebx; \
+ CFI_ADJUST_CFA_OFFSET -4;\
+@@ -229,6 +243,11 @@ ENTRY(ret_from_fork)
+ CFI_ADJUST_CFA_OFFSET 4
+ popfl
+ CFI_ADJUST_CFA_OFFSET -4
++
++#ifdef CONFIG_PAX_KERNEXEC
++ xorl %esi, %esi
++#endif
++
+ jmp syscall_exit
+ CFI_ENDPROC
+ END(ret_from_fork)
+@@ -252,7 +271,17 @@ check_userspace:
+ movb PT_CS(%esp), %al
+ andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax
+ cmpl $USER_RPL, %eax
++
++#ifdef CONFIG_PAX_KERNEXEC
++ jae resume_userspace
++
++ GET_CR0_INTO_EDX
++ xorl %esi, %edx
++ SET_CR0_FROM_EDX
++ jmp resume_kernel
++#else
+ jb resume_kernel # not returning to v8086 or userspace
++#endif
+
+ ENTRY(resume_userspace)
+ LOCKDEP_SYS_EXIT
+@@ -314,10 +343,9 @@ sysenter_past_esp:
+ /*CFI_REL_OFFSET cs, 0*/
+ /*
+ * Push current_thread_info()->sysenter_return to the stack.
+- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
+- * pushed above; +8 corresponds to copy_thread's esp0 setting.
+ */
+- pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp)
++ GET_THREAD_INFO(%ebp)
++ pushl TI_sysenter_return(%ebp)
+ CFI_ADJUST_CFA_OFFSET 4
+ CFI_REL_OFFSET eip, 0
+
+@@ -330,9 +358,19 @@ sysenter_past_esp:
+ * Load the potential sixth argument from user stack.
+ * Careful about security.
+ */
++ movl PT_OLDESP(%esp),%ebp
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++ mov PT_OLDSS(%esp),%ds
++1: movl %ds:(%ebp),%ebp
++ push %ss
++ pop %ds
++#else
+ cmpl $__PAGE_OFFSET-3,%ebp
+ jae syscall_fault
+ 1: movl (%ebp),%ebp
++#endif
++
+ movl %ebp,PT_EBP(%esp)
+ .section __ex_table,"a"
+ .align 4
+@@ -356,12 +394,23 @@ sysenter_do_call:
+ testw $_TIF_ALLWORK_MASK, %cx
+ jne sysexit_audit
+ sysenter_exit:
++
++#ifdef CONFIG_PAX_RANDKSTACK
++ pushl %eax
++ CFI_ADJUST_CFA_OFFSET 4
++ call pax_randomize_kstack
++ popl %eax
++ CFI_ADJUST_CFA_OFFSET -4
++#endif
++
+ /* if something modifies registers it must also disable sysexit */
+ movl PT_EIP(%esp), %edx
+ movl PT_OLDESP(%esp), %ecx
+ xorl %ebp,%ebp
+ TRACE_IRQS_ON
+ 1: mov PT_FS(%esp), %fs
++2: mov PT_DS(%esp), %ds
++3: mov PT_ES(%esp), %es
+ ENABLE_INTERRUPTS_SYSEXIT
+
+ #ifdef CONFIG_AUDITSYSCALL
+@@ -404,11 +453,17 @@ sysexit_audit:
+
+ CFI_ENDPROC
+ .pushsection .fixup,"ax"
+-2: movl $0,PT_FS(%esp)
++4: movl $0,PT_FS(%esp)
++ jmp 1b
++5: movl $0,PT_DS(%esp)
++ jmp 1b
++6: movl $0,PT_ES(%esp)
+ jmp 1b
+ .section __ex_table,"a"
+ .align 4
+- .long 1b,2b
++ .long 1b,4b
++ .long 2b,5b
++ .long 3b,6b
+ .popsection
+ ENDPROC(ia32_sysenter_target)
+
+@@ -438,6 +493,10 @@ syscall_exit:
+ testw $_TIF_ALLWORK_MASK, %cx # current->work
+ jne syscall_exit_work
+
++#ifdef CONFIG_PAX_RANDKSTACK
++ call pax_randomize_kstack
++#endif
++
+ restore_all:
+ movl PT_EFLAGS(%esp), %eax # mix EFLAGS, SS and CS
+ # Warning: PT_OLDSS(%esp) contains the wrong/random values if we
+@@ -531,25 +590,19 @@ work_resched:
+
+ work_notifysig: # deal with pending signals and
+ # notify-resume requests
++ movl %esp, %eax
+ #ifdef CONFIG_VM86
+ testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
+- movl %esp, %eax
+- jne work_notifysig_v86 # returning to kernel-space or
++ jz 1f # returning to kernel-space or
+ # vm86-space
+- xorl %edx, %edx
+- call do_notify_resume
+- jmp resume_userspace_sig
+
+- ALIGN
+-work_notifysig_v86:
+ pushl %ecx # save ti_flags for do_notify_resume
+ CFI_ADJUST_CFA_OFFSET 4
+ call save_v86_state # %eax contains pt_regs pointer
+ popl %ecx
+ CFI_ADJUST_CFA_OFFSET -4
+ movl %eax, %esp
+-#else
+- movl %esp, %eax
++1:
+ #endif
+ xorl %edx, %edx
+ call do_notify_resume
+@@ -584,6 +637,10 @@ END(syscall_exit_work)
+
+ RING0_INT_FRAME # can't unwind into user space anyway
+ syscall_fault:
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++ push %ss
++ pop %ds
++#endif
+ GET_THREAD_INFO(%ebp)
+ movl $-EFAULT,PT_EAX(%esp)
+ jmp resume_userspace
+@@ -595,17 +652,24 @@ syscall_badsys:
+ END(syscall_badsys)
+ CFI_ENDPROC
+
+-#define FIXUP_ESPFIX_STACK \
+- /* since we are on a wrong stack, we cant make it a C code :( */ \
+- PER_CPU(gdt_page, %ebx); \
+- GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); \
+- addl %esp, %eax; \
+- pushl $__KERNEL_DS; \
+- CFI_ADJUST_CFA_OFFSET 4; \
+- pushl %eax; \
+- CFI_ADJUST_CFA_OFFSET 4; \
+- lss (%esp), %esp; \
++.macro FIXUP_ESPFIX_STACK
++ /* since we are on a wrong stack, we cant make it a C code :( */
++#ifdef CONFIG_SMP
++ movl PER_CPU_VAR(cpu_number), %ebx;
++ shll $PAGE_SHIFT_asm, %ebx;
++ addl $cpu_gdt_table, %ebx;
++#else
++ movl $cpu_gdt_table, %ebx;
++#endif
++ GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah);
++ addl %esp, %eax;
++ pushl $__KERNEL_DS;
++ CFI_ADJUST_CFA_OFFSET 4;
++ pushl %eax;
++ CFI_ADJUST_CFA_OFFSET 4;
++ lss (%esp), %esp;
+ CFI_ADJUST_CFA_OFFSET -8;
++.endm
+ #define UNWIND_ESPFIX_STACK \
+ movl %ss, %eax; \
+ /* see if on espfix stack */ \
+@@ -622,7 +686,7 @@ END(syscall_badsys)
+ * Build the entry stubs and pointer table with
+ * some assembler magic.
+ */
+-.section .rodata,"a"
++.section .rodata,"a",@progbits
+ ENTRY(interrupt)
+ .text
+
+@@ -722,12 +786,21 @@ error_code:
+ popl %ecx
+ CFI_ADJUST_CFA_OFFSET -4
+ /*CFI_REGISTER es, ecx*/
++
++#ifdef CONFIG_PAX_KERNEXEC
++ GET_CR0_INTO_EDX
++ movl %edx, %esi
++ orl $X86_CR0_WP, %edx
++ xorl %edx, %esi
++ SET_CR0_FROM_EDX
++#endif
++
+ movl PT_FS(%esp), %edi # get the function address
+ movl PT_ORIG_EAX(%esp), %edx # get the error code
+ movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart
+ mov %ecx, PT_FS(%esp)
+ /*CFI_REL_OFFSET fs, ES*/
+- movl $(__USER_DS), %ecx
++ movl $(__KERNEL_DS), %ecx
+ movl %ecx, %ds
+ movl %ecx, %es
+ TRACE_IRQS_OFF
+@@ -853,6 +926,13 @@ nmi_stack_correct:
+ xorl %edx,%edx # zero error code
+ movl %esp,%eax # pt_regs pointer
+ call do_nmi
++
++#ifdef CONFIG_PAX_KERNEXEC
++ GET_CR0_INTO_EDX
++ xorl %esi, %edx
++ SET_CR0_FROM_EDX
++#endif
++
+ jmp restore_nocheck_notrace
+ CFI_ENDPROC
+
+@@ -894,6 +974,13 @@ nmi_espfix_stack:
+ FIXUP_ESPFIX_STACK # %eax == %esp
+ xorl %edx,%edx # zero error code
+ call do_nmi
++
++#ifdef CONFIG_PAX_KERNEXEC
++ GET_CR0_INTO_EDX
++ xorl %esi, %edx
++ SET_CR0_FROM_EDX
++#endif
++
+ RESTORE_REGS
+ lss 12+4(%esp), %esp # back to espfix stack
+ CFI_ADJUST_CFA_OFFSET -24
+@@ -1206,7 +1293,6 @@ END(mcount)
+ #endif /* CONFIG_DYNAMIC_FTRACE */
+ #endif /* CONFIG_FUNCTION_TRACER */
+
+-.section .rodata,"a"
+ #include "syscall_table_32.S"
+
+ syscall_table_size=(.-sys_call_table)
+diff -urNp linux-2.6.28.8/arch/x86/kernel/entry_64.S linux-2.6.28.8/arch/x86/kernel/entry_64.S
+--- linux-2.6.28.8/arch/x86/kernel/entry_64.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/entry_64.S 2009-02-21 09:37:48.000000000 -0500
+@@ -911,7 +911,8 @@ END(spurious_interrupt)
+ xorl %ebx,%ebx
+ 1:
+ .if \ist
+- movq %gs:pda_data_offset, %rbp
++ imul $TSS_size, %gs:pda_cpunumber, %ebp
++ lea init_tss(%rbp), %rbp
+ .endif
+ .if \irqtrace
+ TRACE_IRQS_OFF
+@@ -920,11 +921,11 @@ END(spurious_interrupt)
+ movq ORIG_RAX(%rsp),%rsi
+ movq $-1,ORIG_RAX(%rsp)
+ .if \ist
+- subq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp)
++ subq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp)
+ .endif
+ call \sym
+ .if \ist
+- addq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp)
++ addq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp)
+ .endif
+ DISABLE_INTERRUPTS(CLBR_NONE)
+ .if \irqtrace
+diff -urNp linux-2.6.28.8/arch/x86/kernel/ftrace.c linux-2.6.28.8/arch/x86/kernel/ftrace.c
+--- linux-2.6.28.8/arch/x86/kernel/ftrace.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/ftrace.c 2009-02-21 09:37:48.000000000 -0500
+@@ -95,9 +95,9 @@ int ftrace_update_ftrace_func(ftrace_fun
+ unsigned char old[MCOUNT_INSN_SIZE], *new;
+ int ret;
+
+- memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE);
++ memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE);
+ new = ftrace_call_replace(ip, (unsigned long)func);
+- ret = ftrace_modify_code(ip, old, new);
++ ret = ftrace_modify_code(ktla_ktva(ip), old, new);
+
+ return ret;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/kernel/head32.c linux-2.6.28.8/arch/x86/kernel/head32.c
+--- linux-2.6.28.8/arch/x86/kernel/head32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/head32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -12,10 +12,11 @@
+ #include <asm/sections.h>
+ #include <asm/e820.h>
+ #include <asm/bios_ebda.h>
++#include <asm/boot.h>
+
+ void __init i386_start_kernel(void)
+ {
+- reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS");
++ reserve_early(LOAD_PHYSICAL_ADDR, __pa_symbol(&_end), "TEXT DATA BSS");
+
+ #ifdef CONFIG_BLK_DEV_INITRD
+ /* Reserve INITRD */
+diff -urNp linux-2.6.28.8/arch/x86/kernel/head_32.S linux-2.6.28.8/arch/x86/kernel/head_32.S
+--- linux-2.6.28.8/arch/x86/kernel/head_32.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/head_32.S 2009-02-21 09:37:48.000000000 -0500
+@@ -19,6 +19,7 @@
+ #include <asm/asm-offsets.h>
+ #include <asm/setup.h>
+ #include <asm/processor-flags.h>
++#include <asm/msr-index.h>
+
+ /* Physical address */
+ #define pa(X) ((X) - __PAGE_OFFSET)
+@@ -64,17 +65,22 @@ LOW_PAGES = 1<<(32-PAGE_SHIFT_asm)
+ LOW_PAGES = LOW_PAGES + 0x1000000
+ #endif
+
+-#if PTRS_PER_PMD > 1
+-PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PMD) + PTRS_PER_PGD
+-#else
+-PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PGD)
+-#endif
++PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PTE)
+ BOOTBITMAP_SIZE = LOW_PAGES / 8
+ ALLOCATOR_SLOP = 4
+
+ INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE + (PAGE_TABLE_SIZE + ALLOCATOR_SLOP)*PAGE_SIZE_asm
+
+ /*
++ * Real beginning of normal "text" segment
++ */
++ENTRY(stext)
++ENTRY(_stext)
++
++.section .text.startup,"ax",@progbits
++ ljmp $(__BOOT_CS),$phys_startup_32
++
++/*
+ * 32-bit kernel entrypoint; only used by the boot CPU. On entry,
+ * %esi points to the real-mode code as a 32-bit pointer.
+ * CS and DS must be 4 GB flat segments, but we don't depend on
+@@ -82,6 +88,12 @@ INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE +
+ * can.
+ */
+ .section .text.head,"ax",@progbits
++
++#ifdef CONFIG_PAX_KERNEXEC
++/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
++.fill 4096,1,0xcc
++#endif
++
+ ENTRY(startup_32)
+ /* test KEEP_SEGMENTS flag to see if the bootloader is asking
+ us to not reload segments */
+@@ -99,6 +111,56 @@ ENTRY(startup_32)
+ movl %eax,%gs
+ 2:
+
++ movl $pa(cpu_gdt_table),%edi
++ movl $__per_cpu_start,%eax
++ movw %ax,__KERNEL_PERCPU + 2(%edi)
++ rorl $16,%eax
++ movb %al,__KERNEL_PERCPU + 4(%edi)
++ movb %ah,__KERNEL_PERCPU + 7(%edi)
++ movl $__per_cpu_end + PERCPU_MODULE_RESERVE - 1,%eax
++ subl $__per_cpu_start,%eax
++ movw %ax,__KERNEL_PERCPU + 0(%edi)
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++ /* check for VMware */
++ movl $0x564d5868,%eax
++ xorl %ebx,%ebx
++ movl $0xa,%ecx
++ movl $0x5658,%edx
++ in (%dx),%eax
++ cmpl $0x564d5868,%ebx
++ jz 2f
++
++ movl $NR_CPUS,%ecx
++ movl $pa(cpu_gdt_table),%edi
++1:
++ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
++ addl $PAGE_SIZE_asm,%edi
++ loop 1b
++2:
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++ movl $pa(boot_gdt),%edi
++ movl $KERNEL_TEXT_OFFSET,%eax
++ movw %ax,__BOOT_CS + 2(%edi)
++ rorl $16,%eax
++ movb %al,__BOOT_CS + 4(%edi)
++ movb %ah,__BOOT_CS + 7(%edi)
++ rorl $16,%eax
++
++ movl $NR_CPUS,%ecx
++ movl $pa(cpu_gdt_table),%edi
++1:
++ movw %ax,__KERNEL_CS + 2(%edi)
++ rorl $16,%eax
++ movb %al,__KERNEL_CS + 4(%edi)
++ movb %ah,__KERNEL_CS + 7(%edi)
++ rorl $16,%eax
++ addl $PAGE_SIZE_asm,%edi
++ loop 1b
++#endif
++
+ /*
+ * Clear BSS first so that there are no surprises...
+ */
+@@ -142,9 +204,7 @@ ENTRY(startup_32)
+ cmpl $num_subarch_entries, %eax
+ jae bad_subarch
+
+- movl pa(subarch_entries)(,%eax,4), %eax
+- subl $__PAGE_OFFSET, %eax
+- jmp *%eax
++ jmp *pa(subarch_entries)(,%eax,4)
+
+ bad_subarch:
+ WEAK(lguest_entry)
+@@ -156,9 +216,9 @@ WEAK(xen_entry)
+ __INITDATA
+
+ subarch_entries:
+- .long default_entry /* normal x86/PC */
+- .long lguest_entry /* lguest hypervisor */
+- .long xen_entry /* Xen hypervisor */
++ .long pa(default_entry) /* normal x86/PC */
++ .long pa(lguest_entry) /* lguest hypervisor */
++ .long pa(xen_entry) /* Xen hypervisor */
+ num_subarch_entries = (. - subarch_entries) / 4
+ .previous
+ #endif /* CONFIG_PARAVIRT */
+@@ -220,8 +280,7 @@ default_entry:
+ movl %eax, pa(max_pfn_mapped)
+
+ /* Do early initialization of the fixmap area */
+- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax
+- movl %eax,pa(swapper_pg_pmd+0x1000*KPMDS-8)
++ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-8)
+ #else /* Not PAE */
+
+ page_pde_offset = (__PAGE_OFFSET >> 20);
+@@ -253,8 +312,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
+ movl %eax, pa(max_pfn_mapped)
+
+ /* Do early initialization of the fixmap area */
+- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax
+- movl %eax,pa(swapper_pg_dir+0xffc)
++ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xffc)
+ #endif
+ jmp 3f
+ /*
+@@ -318,13 +376,16 @@ ENTRY(startup_32_smp)
+ jnc 6f
+
+ /* Setup EFER (Extended Feature Enable Register) */
+- movl $0xc0000080, %ecx
++ movl $MSR_EFER, %ecx
+ rdmsr
+
+ btsl $11, %eax
+ /* Make changes effective */
+ wrmsr
+
++ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
++ movl $1,pa(nx_enabled)
++
+ 6:
+
+ /*
+@@ -350,9 +411,7 @@ ENTRY(startup_32_smp)
+
+ #ifdef CONFIG_SMP
+ cmpb $0, ready
+- jz 1f /* Initial CPU cleans BSS */
+- jmp checkCPUtype
+-1:
++ jnz checkCPUtype /* Initial CPU cleans BSS */
+ #endif /* CONFIG_SMP */
+
+ /*
+@@ -429,12 +488,12 @@ is386: movl $2,%ecx # set MP
+ ljmp $(__KERNEL_CS),$1f
+ 1: movl $(__KERNEL_DS),%eax # reload all the segment registers
+ movl %eax,%ss # after changing gdt.
+- movl %eax,%fs # gets reset once there's real percpu
+-
+- movl $(__USER_DS),%eax # DS/ES contains default USER segment
+ movl %eax,%ds
+ movl %eax,%es
+
++ movl $(__KERNEL_PERCPU), %eax
++ movl %eax,%fs # set this cpu's percpu
++
+ xorl %eax,%eax # Clear GS and LDT
+ movl %eax,%gs
+ lldt %ax
+@@ -444,12 +503,6 @@ is386: movl $2,%ecx # set MP
+ #ifdef CONFIG_SMP
+ movb ready, %cl
+ movb $1, ready
+- cmpb $0,%cl # the first CPU calls start_kernel
+- je 1f
+- movl $(__KERNEL_PERCPU), %eax
+- movl %eax,%fs # set this cpu's percpu
+- movl (stack_start), %esp
+-1:
+ #endif /* CONFIG_SMP */
+ jmp *(initial_code)
+
+@@ -535,15 +588,15 @@ early_page_fault:
+ jmp early_fault
+
+ early_fault:
+- cld
+ #ifdef CONFIG_PRINTK
++ cmpl $2,%ss:early_recursion_flag
++ je hlt_loop
++ incl %ss:early_recursion_flag
++ cld
+ pusha
+ movl $(__KERNEL_DS),%eax
+ movl %eax,%ds
+ movl %eax,%es
+- cmpl $2,early_recursion_flag
+- je hlt_loop
+- incl early_recursion_flag
+ movl %cr2,%eax
+ pushl %eax
+ pushl %edx /* trapno */
+@@ -553,8 +606,8 @@ early_fault:
+ #else
+ call printk
+ #endif
+-#endif
+ call dump_stack
++#endif
+ hlt_loop:
+ hlt
+ jmp hlt_loop
+@@ -562,8 +615,11 @@ hlt_loop:
+ /* This is the default interrupt "handler" :-) */
+ ALIGN
+ ignore_int:
+- cld
+ #ifdef CONFIG_PRINTK
++ cmpl $2,%ss:early_recursion_flag
++ je hlt_loop
++ incl %ss:early_recursion_flag
++ cld
+ pushl %eax
+ pushl %ecx
+ pushl %edx
+@@ -572,9 +628,6 @@ ignore_int:
+ movl $(__KERNEL_DS),%eax
+ movl %eax,%ds
+ movl %eax,%es
+- cmpl $2,early_recursion_flag
+- je hlt_loop
+- incl early_recursion_flag
+ pushl 16(%esp)
+ pushl 24(%esp)
+ pushl 32(%esp)
+@@ -599,36 +652,41 @@ ignore_int:
+ ENTRY(initial_code)
+ .long i386_start_kernel
+
+-.section .text
+-/*
+- * Real beginning of normal "text" segment
+- */
+-ENTRY(stext)
+-ENTRY(_stext)
+-
+ /*
+ * BSS section
+ */
+-.section ".bss.page_aligned","wa"
+- .align PAGE_SIZE_asm
+ #ifdef CONFIG_X86_PAE
++.section .swapper_pg_pmd,"a",@progbits
+ swapper_pg_pmd:
+ .fill 1024*KPMDS,4,0
+ #else
++.section .swapper_pg_dir,"a",@progbits
+ ENTRY(swapper_pg_dir)
+ .fill 1024,4,0
+ #endif
+ swapper_pg_fixmap:
+ .fill 1024,4,0
++
++.section .empty_zero_page,"a",@progbits
+ ENTRY(empty_zero_page)
+ .fill 4096,1,0
++
++/*
++ * The IDT has to be page-aligned to simplify the Pentium
++ * F0 0F bug workaround.. We have a special link segment
++ * for this.
++ */
++.section .idt,"a",@progbits
++ENTRY(idt_table)
++ .fill 256,8,0
++
+ /*
+ * This starts the data section.
+ */
++.data
++
+ #ifdef CONFIG_X86_PAE
+-.section ".data.page_aligned","wa"
+- /* Page-aligned for the benefit of paravirt? */
+- .align PAGE_SIZE_asm
++.section .swapper_pg_dir,"a",@progbits
+ ENTRY(swapper_pg_dir)
+ .long pa(swapper_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */
+ # if KPMDS == 3
+@@ -651,11 +709,12 @@ ENTRY(swapper_pg_dir)
+
+ .data
+ ENTRY(stack_start)
+- .long init_thread_union+THREAD_SIZE
++ .long init_thread_union+THREAD_SIZE-8
+ .long __BOOT_DS
+
+ ready: .byte 0
+
++.section .rodata,"a",@progbits
+ early_recursion_flag:
+ .long 0
+
+@@ -691,7 +750,7 @@ fault_msg:
+ .word 0 # 32 bit align gdt_desc.address
+ boot_gdt_descr:
+ .word __BOOT_DS+7
+- .long boot_gdt - __PAGE_OFFSET
++ .long pa(boot_gdt)
+
+ .word 0 # 32-bit align idt_desc.address
+ idt_descr:
+@@ -702,7 +761,7 @@ idt_descr:
+ .word 0 # 32 bit align gdt_desc.address
+ ENTRY(early_gdt_descr)
+ .word GDT_ENTRIES*8-1
+- .long per_cpu__gdt_page /* Overwritten for secondary CPUs */
++ .long cpu_gdt_table /* Overwritten for secondary CPUs */
+
+ /*
+ * The boot_gdt must mirror the equivalent in setup.S and is
+@@ -711,5 +770,59 @@ ENTRY(early_gdt_descr)
+ .align L1_CACHE_BYTES
+ ENTRY(boot_gdt)
+ .fill GDT_ENTRY_BOOT_CS,8,0
+- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */
+- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */
++ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */
++ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */
++
++ .align PAGE_SIZE_asm
++ENTRY(cpu_gdt_table)
++ .rept NR_CPUS
++ .quad 0x0000000000000000 /* NULL descriptor */
++ .quad 0x0000000000000000 /* 0x0b reserved */
++ .quad 0x0000000000000000 /* 0x13 reserved */
++ .quad 0x0000000000000000 /* 0x1b reserved */
++ .quad 0x0000000000000000 /* 0x20 unused */
++ .quad 0x0000000000000000 /* 0x28 unused */
++ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */
++ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */
++ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */
++ .quad 0x0000000000000000 /* 0x4b reserved */
++ .quad 0x0000000000000000 /* 0x53 reserved */
++ .quad 0x0000000000000000 /* 0x5b reserved */
++
++ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */
++ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */
++ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */
++ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */
++
++ .quad 0x0000000000000000 /* 0x80 TSS descriptor */
++ .quad 0x0000000000000000 /* 0x88 LDT descriptor */
++
++ /*
++ * Segments used for calling PnP BIOS have byte granularity.
++ * The code segments and data segments have fixed 64k limits,
++ * the transfer segment sizes are set at run time.
++ */
++ .quad 0x00409b000000ffff /* 0x90 32-bit code */
++ .quad 0x00009b000000ffff /* 0x98 16-bit code */
++ .quad 0x000093000000ffff /* 0xa0 16-bit data */
++ .quad 0x0000930000000000 /* 0xa8 16-bit data */
++ .quad 0x0000930000000000 /* 0xb0 16-bit data */
++
++ /*
++ * The APM segments have byte granularity and their bases
++ * are set at run time. All have 64k limits.
++ */
++ .quad 0x00409b000000ffff /* 0xb8 APM CS code */
++ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */
++ .quad 0x004093000000ffff /* 0xc8 APM DS data */
++
++ .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */
++ .quad 0x0040930000000000 /* 0xd8 - PERCPU */
++ .quad 0x0000000000000000 /* 0xe0 - PCIBIOS_CS */
++ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_DS */
++ .quad 0x0000000000000000 /* 0xf0 - unused */
++ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
++
++ /* Be sure this is zeroed to avoid false validations in Xen */
++ .fill PAGE_SIZE_asm - GDT_SIZE,1,0
++ .endr
+diff -urNp linux-2.6.28.8/arch/x86/kernel/head64.c linux-2.6.28.8/arch/x86/kernel/head64.c
+--- linux-2.6.28.8/arch/x86/kernel/head64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/head64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -93,6 +93,8 @@ void __init x86_64_start_kernel(char * r
+ /* clear bss before set_intr_gate with early_idt_handler */
+ clear_bss();
+
++ x86_64_init_pda();
++
+ /* Make NULL pointers segfault */
+ zap_identity_mappings();
+
+@@ -111,8 +113,6 @@ void __init x86_64_start_kernel(char * r
+ if (console_loglevel == 10)
+ early_printk("Kernel alive\n");
+
+- x86_64_init_pda();
+-
+ x86_64_start_reservations(real_mode_data);
+ }
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/head_64.S linux-2.6.28.8/arch/x86/kernel/head_64.S
+--- linux-2.6.28.8/arch/x86/kernel/head_64.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/head_64.S 2009-02-21 09:37:48.000000000 -0500
+@@ -38,6 +38,10 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET
+ L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
+ L4_START_KERNEL = pgd_index(__START_KERNEL_map)
+ L3_START_KERNEL = pud_index(__START_KERNEL_map)
++L4_VMALLOC_START = pgd_index(VMALLOC_START)
++L3_VMALLOC_START = pud_index(VMALLOC_START)
++L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
++L3_VMEMMAP_START = pud_index(VMEMMAP_START)
+
+ .text
+ .section .text.head
+@@ -85,35 +89,22 @@ startup_64:
+ */
+ addq %rbp, init_level4_pgt + 0(%rip)
+ addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
++ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
++ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
+ addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
+
+ addq %rbp, level3_ident_pgt + 0(%rip)
++ addq %rbp, level3_ident_pgt + 8(%rip)
++ addq %rbp, level3_ident_pgt + 16(%rip)
++ addq %rbp, level3_ident_pgt + 24(%rip)
+
+- addq %rbp, level3_kernel_pgt + (510*8)(%rip)
+- addq %rbp, level3_kernel_pgt + (511*8)(%rip)
++ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
+
+- addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
++ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
++ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip)
+
+- /* Add an Identity mapping if I am above 1G */
+- leaq _text(%rip), %rdi
+- andq $PMD_PAGE_MASK, %rdi
+-
+- movq %rdi, %rax
+- shrq $PUD_SHIFT, %rax
+- andq $(PTRS_PER_PUD - 1), %rax
+- jz ident_complete
+-
+- leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx
+- leaq level3_ident_pgt(%rip), %rbx
+- movq %rdx, 0(%rbx, %rax, 8)
+-
+- movq %rdi, %rax
+- shrq $PMD_SHIFT, %rax
+- andq $(PTRS_PER_PMD - 1), %rax
+- leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx
+- leaq level2_spare_pgt(%rip), %rbx
+- movq %rdx, 0(%rbx, %rax, 8)
+-ident_complete:
++ addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
++ addq %rbp, level2_fixmap_pgt + (507*8)(%rip)
+
+ /*
+ * Fixup the kernel text+data virtual addresses. Note that
+@@ -187,6 +178,10 @@ ENTRY(secondary_startup_64)
+ btl $20,%edi /* No Execute supported? */
+ jnc 1f
+ btsl $_EFER_NX, %eax
++ leaq init_level4_pgt(%rip), %rdi
++ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi)
++ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi)
++ btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi)
+ 1: wrmsr /* Make changes effective */
+
+ /* Setup cr0 */
+@@ -257,16 +252,16 @@ ENTRY(secondary_startup_64)
+ .align 8
+ ENTRY(initial_code)
+ .quad x86_64_start_kernel
+- __FINITDATA
+
+ ENTRY(stack_start)
+ .quad init_thread_union+THREAD_SIZE-8
+ .word 0
++ __FINITDATA
+
+ bad_address:
+ jmp bad_address
+
+- .section ".init.text","ax"
++ __INIT
+ #ifdef CONFIG_EARLY_PRINTK
+ .globl early_idt_handlers
+ early_idt_handlers:
+@@ -311,18 +306,23 @@ ENTRY(early_idt_handler)
+ #endif /* EARLY_PRINTK */
+ 1: hlt
+ jmp 1b
++ .previous
+
+ #ifdef CONFIG_EARLY_PRINTK
++ __INITDATA
+ early_recursion_flag:
+ .long 0
++ .previous
+
++ .section .rodata,"a",@progbits
+ early_idt_msg:
+ .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
+ early_idt_ripmsg:
+ .asciz "RIP %s\n"
+-#endif /* CONFIG_EARLY_PRINTK */
+ .previous
++#endif /* CONFIG_EARLY_PRINTK */
+
++ .section .rodata,"a",@progbits
+ .balign PAGE_SIZE
+
+ #define NEXT_PAGE(name) \
+@@ -347,13 +347,27 @@ NEXT_PAGE(init_level4_pgt)
+ .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+ .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
+ .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
++ .org init_level4_pgt + L4_VMALLOC_START*8, 0
++ .quad level3_vmalloc_pgt - __START_KERNEL_map + _KERNPG_TABLE
++ .org init_level4_pgt + L4_VMEMMAP_START*8, 0
++ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
+ .org init_level4_pgt + L4_START_KERNEL*8, 0
+ /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
+ .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
+
+ NEXT_PAGE(level3_ident_pgt)
+ .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+- .fill 511,8,0
++ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
++ .quad level2_ident_pgt + 2*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
++ .quad level2_ident_pgt + 3*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
++ .fill 508,8,0
++
++NEXT_PAGE(level3_vmalloc_pgt)
++ .fill 512,8,0
++
++NEXT_PAGE(level3_vmemmap_pgt)
++ .fill L3_VMEMMAP_START,8,0
++ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
+
+ NEXT_PAGE(level3_kernel_pgt)
+ .fill L3_START_KERNEL,8,0
+@@ -361,20 +375,27 @@ NEXT_PAGE(level3_kernel_pgt)
+ .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
+ .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+
++NEXT_PAGE(level2_vmemmap_pgt)
++ .fill 512,8,0
++
+ NEXT_PAGE(level2_fixmap_pgt)
+ .fill 506,8,0
+ .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
+- .fill 5,8,0
++ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
++ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
++ .fill 4,8,0
+
+ NEXT_PAGE(level1_fixmap_pgt)
+ .fill 512,8,0
+
+-NEXT_PAGE(level2_ident_pgt)
+- /* Since I easily can, map the first 1G.
++NEXT_PAGE(level1_vsyscall_pgt)
++ .fill 512,8,0
++
++ /* Since I easily can, map the first 4G.
+ * Don't set NX because code runs from these pages.
+ */
+- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
++NEXT_PAGE(level2_ident_pgt)
++ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 4*PTRS_PER_PMD)
+
+ NEXT_PAGE(level2_kernel_pgt)
+ /*
+@@ -387,32 +408,48 @@ NEXT_PAGE(level2_kernel_pgt)
+ * If you want to increase this then increase MODULES_VADDR
+ * too.)
+ */
+- PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
+- KERNEL_IMAGE_SIZE/PMD_SIZE)
+-
+-NEXT_PAGE(level2_spare_pgt)
+- .fill 512, 8, 0
++ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE)
+
+ #undef PMDS
+ #undef NEXT_PAGE
+
+- .data
++ .align PAGE_SIZE
++ENTRY(cpu_gdt_table)
++ .rept NR_CPUS
++ .quad 0x0000000000000000 /* NULL descriptor */
++ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */
++ .quad 0x00af9b000000ffff /* __KERNEL_CS */
++ .quad 0x00cf93000000ffff /* __KERNEL_DS */
++ .quad 0x00cffb000000ffff /* __USER32_CS */
++ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */
++ .quad 0x00affb000000ffff /* __USER_CS */
++ .quad 0x0 /* unused */
++ .quad 0,0 /* TSS */
++ .quad 0,0 /* LDT */
++ .quad 0,0,0 /* three TLS descriptors */
++ .quad 0x0000f40000000000 /* node/CPU stored in limit */
++ /* asm/segment.h:GDT_ENTRIES must match this */
++
++ /* zero the remaining page */
++ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
++ .endr
++
+ .align 16
+ .globl early_gdt_descr
+ early_gdt_descr:
+ .word GDT_ENTRIES*8-1
+- .quad per_cpu__gdt_page
++ .quad cpu_gdt_table
+
+ ENTRY(phys_base)
+ /* This must match the first entry in level2_kernel_pgt */
+ .quad 0x0000000000000000
+
+ #include "../../x86/xen/xen-head.S"
+-
+- .section .bss, "aw", @nobits
++
++ .section .rodata,"a",@progbits
+ .align L1_CACHE_BYTES
+ ENTRY(idt_table)
+- .skip 256 * 16
++ .fill 512,8,0
+
+ .section .bss.page_aligned, "aw", @nobits
+ .align PAGE_SIZE
+diff -urNp linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c
+--- linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -10,8 +10,12 @@
+ EXPORT_SYMBOL(mcount);
+ #endif
+
++EXPORT_SYMBOL_GPL(cpu_gdt_table);
++
+ /* Networking helper routines. */
+ EXPORT_SYMBOL(csum_partial_copy_generic);
++EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
++EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
+
+ EXPORT_SYMBOL(__get_user_1);
+ EXPORT_SYMBOL(__get_user_2);
+@@ -26,3 +30,7 @@ EXPORT_SYMBOL(strstr);
+
+ EXPORT_SYMBOL(csum_partial);
+ EXPORT_SYMBOL(empty_zero_page);
++
++#ifdef CONFIG_PAX_KERNEXEC
++EXPORT_SYMBOL(KERNEL_TEXT_OFFSET);
++#endif
+diff -urNp linux-2.6.28.8/arch/x86/kernel/init_task.c linux-2.6.28.8/arch/x86/kernel/init_task.c
+--- linux-2.6.28.8/arch/x86/kernel/init_task.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/init_task.c 2009-02-21 09:37:48.000000000 -0500
+@@ -42,5 +42,5 @@ EXPORT_SYMBOL(init_task);
+ * section. Since TSS's are completely CPU-local, we want them
+ * on exact cacheline boundaries, to eliminate cacheline ping-pong.
+ */
+-DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
+-
++struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
++EXPORT_SYMBOL(init_tss);
+diff -urNp linux-2.6.28.8/arch/x86/kernel/ioport.c linux-2.6.28.8/arch/x86/kernel/ioport.c
+--- linux-2.6.28.8/arch/x86/kernel/ioport.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/ioport.c 2009-02-21 09:37:48.000000000 -0500
+@@ -6,6 +6,7 @@
+ #include <linux/sched.h>
+ #include <linux/kernel.h>
+ #include <linux/capability.h>
++#include <linux/security.h>
+ #include <linux/errno.h>
+ #include <linux/types.h>
+ #include <linux/ioport.h>
+@@ -41,6 +42,12 @@ asmlinkage long sys_ioperm(unsigned long
+
+ if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
+ return -EINVAL;
++#ifdef CONFIG_GRKERNSEC_IO
++ if (turn_on) {
++ gr_handle_ioperm();
++ return -EPERM;
++ }
++#endif
+ if (turn_on && !capable(CAP_SYS_RAWIO))
+ return -EPERM;
+
+@@ -67,7 +74,7 @@ asmlinkage long sys_ioperm(unsigned long
+ * because the ->io_bitmap_max value must match the bitmap
+ * contents:
+ */
+- tss = &per_cpu(init_tss, get_cpu());
++ tss = init_tss + get_cpu();
+
+ set_bitmap(t->io_bitmap_ptr, from, num, !turn_on);
+
+@@ -122,8 +129,13 @@ static int do_iopl(unsigned int level, s
+ return -EINVAL;
+ /* Trying to gain more privileges? */
+ if (level > old) {
++#ifdef CONFIG_GRKERNSEC_IO
++ gr_handle_iopl();
++ return -EPERM;
++#else
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
++#endif
+ }
+ regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/irq_32.c linux-2.6.28.8/arch/x86/kernel/irq_32.c
+--- linux-2.6.28.8/arch/x86/kernel/irq_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/irq_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -93,7 +93,7 @@ execute_on_irq_stack(int overflow, struc
+ return 0;
+
+ /* build the stack frame on the IRQ stack */
+- isp = (u32 *) ((char*)irqctx + sizeof(*irqctx));
++ isp = (u32 *) ((char*)irqctx + sizeof(*irqctx) - 8);
+ irqctx->tinfo.task = curctx->tinfo.task;
+ irqctx->tinfo.previous_esp = current_stack_pointer;
+
+@@ -174,7 +174,7 @@ asmlinkage void do_softirq(void)
+ irqctx->tinfo.previous_esp = current_stack_pointer;
+
+ /* build the stack frame on the softirq stack */
+- isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
++ isp = (u32*) ((char*)irqctx + sizeof(*irqctx) - 8);
+
+ call_on_stack(__do_softirq, isp);
+ /*
+diff -urNp linux-2.6.28.8/arch/x86/kernel/kprobes.c linux-2.6.28.8/arch/x86/kernel/kprobes.c
+--- linux-2.6.28.8/arch/x86/kernel/kprobes.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/kprobes.c 2009-02-21 09:37:48.000000000 -0500
+@@ -166,9 +166,24 @@ static void __kprobes set_jmp_op(void *f
+ char op;
+ s32 raddr;
+ } __attribute__((packed)) * jop;
+- jop = (struct __arch_jmp_op *)from;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
++ jop = (struct __arch_jmp_op *)(ktla_ktva(from));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ jop->raddr = (s32)((long)(to) - ((long)(from) + 5));
+ jop->op = RELATIVEJUMP_INSTRUCTION;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+
+ /*
+@@ -342,16 +357,29 @@ static void __kprobes fix_riprel(struct
+
+ static void __kprobes arch_copy_kprobe(struct kprobe *p)
+ {
+- memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ memcpy(p->ainsn.insn, ktla_ktva(p->addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
+
+ fix_riprel(p);
+
+- if (can_boost(p->addr))
++ if (can_boost(ktla_ktva(p->addr)))
+ p->ainsn.boostable = 0;
+ else
+ p->ainsn.boostable = -1;
+
+- p->opcode = *p->addr;
++ p->opcode = *(ktla_ktva(p->addr));
+ }
+
+ int __kprobes arch_prepare_kprobe(struct kprobe *p)
+@@ -428,7 +456,7 @@ static void __kprobes prepare_singlestep
+ if (p->opcode == BREAKPOINT_INSTRUCTION)
+ regs->ip = (unsigned long)p->addr;
+ else
+- regs->ip = (unsigned long)p->ainsn.insn;
++ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
+ }
+
+ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
+@@ -449,7 +477,7 @@ static void __kprobes setup_singlestep(s
+ if (p->ainsn.boostable == 1 && !p->post_handler) {
+ /* Boost up -- we can execute copied instructions directly */
+ reset_current_kprobe();
+- regs->ip = (unsigned long)p->ainsn.insn;
++ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
+ preempt_enable_no_resched();
+ return;
+ }
+@@ -519,7 +547,7 @@ static int __kprobes kprobe_handler(stru
+ struct kprobe_ctlblk *kcb;
+
+ addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
+- if (*addr != BREAKPOINT_INSTRUCTION) {
++ if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
+ /*
+ * The breakpoint instruction was removed right
+ * after we hit it. Another cpu has removed
+@@ -770,7 +798,7 @@ static void __kprobes resume_execution(s
+ struct pt_regs *regs, struct kprobe_ctlblk *kcb)
+ {
+ unsigned long *tos = stack_addr(regs);
+- unsigned long copy_ip = (unsigned long)p->ainsn.insn;
++ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
+ unsigned long orig_ip = (unsigned long)p->addr;
+ kprobe_opcode_t *insn = p->ainsn.insn;
+
+@@ -953,7 +981,7 @@ int __kprobes kprobe_exceptions_notify(s
+ struct die_args *args = data;
+ int ret = NOTIFY_DONE;
+
+- if (args->regs && user_mode_vm(args->regs))
++ if (args->regs && user_mode(args->regs))
+ return ret;
+
+ switch (val) {
+diff -urNp linux-2.6.28.8/arch/x86/kernel/ldt.c linux-2.6.28.8/arch/x86/kernel/ldt.c
+--- linux-2.6.28.8/arch/x86/kernel/ldt.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/ldt.c 2009-02-21 09:37:48.000000000 -0500
+@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, i
+ if (reload) {
+ #ifdef CONFIG_SMP
+ preempt_disable();
+- load_LDT(pc);
++ load_LDT_nolock(pc);
+ if (!cpus_equal(current->mm->cpu_vm_mask,
+ cpumask_of_cpu(smp_processor_id())))
+ smp_call_function(flush_ldt, current->mm, 1);
+ preempt_enable();
+ #else
+- load_LDT(pc);
++ load_LDT_nolock(pc);
+ #endif
+ }
+ if (oldsize) {
+@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t
+ return err;
+
+ for(i = 0; i < old->size; i++)
+- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
++ write_ldt_entry(new->ldt, i, old->ldt + i);
+ return 0;
+ }
+
+@@ -115,6 +115,24 @@ int init_new_context(struct task_struct
+ retval = copy_ldt(&mm->context, &old_mm->context);
+ mutex_unlock(&old_mm->context.lock);
+ }
++
++ if (tsk == current) {
++ mm->context.vdso = ~0UL;
++
++#ifdef CONFIG_X86_32
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ mm->context.user_cs_base = 0UL;
++ mm->context.user_cs_limit = ~0UL;
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
++ cpus_clear(mm->context.cpu_user_cs_mask);
++#endif
++
++#endif
++#endif
++
++ }
++
+ return retval;
+ }
+
+@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, u
+ }
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
++ error = -EINVAL;
++ goto out_unlock;
++ }
++#endif
++
+ fill_ldt(&ldt, &ldt_info);
+ if (oldmode)
+ ldt.avl = 0;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c
+--- linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -34,7 +34,7 @@ static u32 kexec_pmd1[1024] PAGE_ALIGNED
+ static u32 kexec_pte0[1024] PAGE_ALIGNED;
+ static u32 kexec_pte1[1024] PAGE_ALIGNED;
+
+-static void set_idt(void *newidt, __u16 limit)
++static void set_idt(struct desc_struct *newidt, __u16 limit)
+ {
+ struct desc_ptr curidt;
+
+@@ -46,7 +46,7 @@ static void set_idt(void *newidt, __u16
+ }
+
+
+-static void set_gdt(void *newgdt, __u16 limit)
++static void set_gdt(struct desc_struct *newgdt, __u16 limit)
+ {
+ struct desc_ptr curgdt;
+
+@@ -145,7 +145,7 @@ void machine_kexec(struct kimage *image)
+ }
+
+ control_page = page_address(image->control_code_page);
+- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
++ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
+
+ relocate_kernel_ptr = control_page;
+ page_list[PA_CONTROL_PAGE] = __pa(control_page);
+diff -urNp linux-2.6.28.8/arch/x86/kernel/module_32.c linux-2.6.28.8/arch/x86/kernel/module_32.c
+--- linux-2.6.28.8/arch/x86/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -23,6 +23,9 @@
+ #include <linux/kernel.h>
+ #include <linux/bug.h>
+
++#include <asm/desc.h>
++#include <asm/pgtable.h>
++
+ #if 0
+ #define DEBUGP printk
+ #else
+@@ -33,9 +36,31 @@ void *module_alloc(unsigned long size)
+ {
+ if (size == 0)
+ return NULL;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
++#else
+ return vmalloc_exec(size);
++#endif
++
+ }
+
++#ifdef CONFIG_PAX_KERNEXEC
++void *module_alloc_exec(unsigned long size)
++{
++ struct vm_struct *area;
++
++ if (size == 0)
++ return NULL;
++
++ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_VADDR, (unsigned long)&MODULES_END);
++ if (area)
++ return area->addr;
++
++ return NULL;
++}
++EXPORT_SYMBOL(module_alloc_exec);
++#endif
+
+ /* Free memory returned from module_alloc */
+ void module_free(struct module *mod, void *module_region)
+@@ -45,6 +70,45 @@ void module_free(struct module *mod, voi
+ table entries. */
+ }
+
++#ifdef CONFIG_PAX_KERNEXEC
++void module_free_exec(struct module *mod, void *module_region)
++{
++ struct vm_struct **p, *tmp;
++
++ if (!module_region)
++ return;
++
++ if ((PAGE_SIZE-1) & (unsigned long)module_region) {
++ printk(KERN_ERR "Trying to module_free_exec() bad address (%p)\n", module_region);
++ WARN_ON(1);
++ return;
++ }
++
++ write_lock(&vmlist_lock);
++ for (p = &vmlist; (tmp = *p) != NULL; p = &tmp->next)
++ if (tmp->addr == module_region)
++ break;
++
++ if (tmp) {
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++ memset(tmp->addr, 0xCC, tmp->size);
++ pax_close_kernel(cr0);
++
++ *p = tmp->next;
++ kfree(tmp);
++ }
++ write_unlock(&vmlist_lock);
++
++ if (!tmp) {
++ printk(KERN_ERR "Trying to module_free_exec() nonexistent vm area (%p)\n",
++ module_region);
++ WARN_ON(1);
++ }
++}
++#endif
++
+ /* We don't need anything special. */
+ int module_frob_arch_sections(Elf_Ehdr *hdr,
+ Elf_Shdr *sechdrs,
+@@ -63,14 +127,20 @@ int apply_relocate(Elf32_Shdr *sechdrs,
+ unsigned int i;
+ Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
+ Elf32_Sym *sym;
+- uint32_t *location;
++ uint32_t *plocation, location;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
+
+ DEBUGP("Applying relocate section %u to %u\n", relsec,
+ sechdrs[relsec].sh_info);
+ for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+ /* This is where to make the change */
+- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+- + rel[i].r_offset;
++ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
++ location = (uint32_t)plocation;
++ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
++ plocation = ktla_ktva((void *)plocation);
+ /* This is the symbol it is referring to. Note that all
+ undefined symbols have been resolved. */
+ sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
+@@ -78,12 +148,32 @@ int apply_relocate(Elf32_Shdr *sechdrs,
+
+ switch (ELF32_R_TYPE(rel[i].r_info)) {
+ case R_386_32:
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ /* We add the value into the location given */
+- *location += sym->st_value;
++ *plocation += sym->st_value;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ break;
+ case R_386_PC32:
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ /* Add the value, subtract its postition */
+- *location += sym->st_value - (uint32_t)location;
++ *plocation += sym->st_value - location;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ break;
+ default:
+ printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+diff -urNp linux-2.6.28.8/arch/x86/kernel/module_64.c linux-2.6.28.8/arch/x86/kernel/module_64.c
+--- linux-2.6.28.8/arch/x86/kernel/module_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/module_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -40,7 +40,7 @@ void module_free(struct module *mod, voi
+ table entries. */
+ }
+
+-void *module_alloc(unsigned long size)
++static void *__module_alloc(unsigned long size, pgprot_t prot)
+ {
+ struct vm_struct *area;
+
+@@ -54,8 +54,31 @@ void *module_alloc(unsigned long size)
+ if (!area)
+ return NULL;
+
+- return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC);
++ return __vmalloc_area(area, GFP_KERNEL | __GFP_ZERO, prot);
++}
++
++#ifdef CONFIG_PAX_KERNEXEC
++void *module_alloc(unsigned long size)
++{
++ return __module_alloc(size, PAGE_KERNEL);
++}
++
++void module_free_exec(struct module *mod, void *module_region)
++{
++ module_free(mod, module_region);
++}
++
++void *module_alloc_exec(unsigned long size)
++{
++ return __module_alloc(size, PAGE_KERNEL_RX);
+ }
++#else
++void *module_alloc(unsigned long size)
++{
++ return __module_alloc(size, PAGE_KERNEL_EXEC);
++}
++#endif
++
+ #endif
+
+ /* We don't need anything special. */
+@@ -77,7 +100,11 @@ int apply_relocate_add(Elf64_Shdr *sechd
+ Elf64_Rela *rel = (void *)sechdrs[relsec].sh_addr;
+ Elf64_Sym *sym;
+ void *loc;
+- u64 val;
++ u64 val;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
+
+ DEBUGP("Applying relocate section %u to %u\n", relsec,
+ sechdrs[relsec].sh_info);
+@@ -101,21 +128,61 @@ int apply_relocate_add(Elf64_Shdr *sechd
+ case R_X86_64_NONE:
+ break;
+ case R_X86_64_64:
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ *(u64 *)loc = val;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ break;
+ case R_X86_64_32:
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ *(u32 *)loc = val;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ if (val != *(u32 *)loc)
+ goto overflow;
+ break;
+ case R_X86_64_32S:
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ *(s32 *)loc = val;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ if ((s64)val != *(s32 *)loc)
+ goto overflow;
+ break;
+ case R_X86_64_PC32:
+ val -= (u64)loc;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ *(u32 *)loc = val;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ #if 0
+ if ((s64)val != *(s32 *)loc)
+ goto overflow;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/paravirt.c linux-2.6.28.8/arch/x86/kernel/paravirt.c
+--- linux-2.6.28.8/arch/x86/kernel/paravirt.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/paravirt.c 2009-03-07 10:34:42.000000000 -0500
+@@ -44,7 +44,7 @@ void _paravirt_nop(void)
+ {
+ }
+
+-static void __init default_banner(void)
++static void default_banner(void)
+ {
+ printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
+ pv_info.name);
+@@ -164,7 +164,7 @@ unsigned paravirt_patch_insns(void *insn
+ if (insn_len > len || start == NULL)
+ insn_len = len;
+ else
+- memcpy(insnbuf, start, insn_len);
++ memcpy(insnbuf, ktla_ktva(start), insn_len);
+
+ return insn_len;
+ }
+@@ -292,21 +292,21 @@ void arch_flush_lazy_cpu_mode(void)
+ preempt_enable();
+ }
+
+-struct pv_info pv_info = {
++struct pv_info pv_info __read_only = {
+ .name = "bare hardware",
+ .paravirt_enabled = 0,
+ .kernel_rpl = 0,
+ .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */
+ };
+
+-struct pv_init_ops pv_init_ops = {
++struct pv_init_ops pv_init_ops __read_only = {
+ .patch = native_patch,
+ .banner = default_banner,
+ .arch_setup = paravirt_nop,
+ .memory_setup = machine_specific_memory_setup,
+ };
+
+-struct pv_time_ops pv_time_ops = {
++struct pv_time_ops pv_time_ops __read_only = {
+ .time_init = hpet_time_init,
+ .get_wallclock = native_get_wallclock,
+ .set_wallclock = native_set_wallclock,
+@@ -314,7 +314,7 @@ struct pv_time_ops pv_time_ops = {
+ .get_tsc_khz = native_calibrate_tsc,
+ };
+
+-struct pv_irq_ops pv_irq_ops = {
++struct pv_irq_ops pv_irq_ops __read_only = {
+ .init_IRQ = native_init_IRQ,
+ .save_fl = native_save_fl,
+ .restore_fl = native_restore_fl,
+@@ -327,7 +327,7 @@ struct pv_irq_ops pv_irq_ops = {
+ #endif
+ };
+
+-struct pv_cpu_ops pv_cpu_ops = {
++struct pv_cpu_ops pv_cpu_ops __read_only = {
+ .cpuid = native_cpuid,
+ .get_debugreg = native_get_debugreg,
+ .set_debugreg = native_set_debugreg,
+@@ -389,7 +389,7 @@ struct pv_cpu_ops pv_cpu_ops = {
+ },
+ };
+
+-struct pv_apic_ops pv_apic_ops = {
++struct pv_apic_ops pv_apic_ops __read_only = {
+ #ifdef CONFIG_X86_LOCAL_APIC
+ .setup_boot_clock = setup_boot_APIC_clock,
+ .setup_secondary_clock = setup_secondary_APIC_clock,
+@@ -397,7 +397,7 @@ struct pv_apic_ops pv_apic_ops = {
+ #endif
+ };
+
+-struct pv_mmu_ops pv_mmu_ops = {
++struct pv_mmu_ops pv_mmu_ops __read_only = {
+ #ifndef CONFIG_X86_64
+ .pagetable_setup_start = native_pagetable_setup_start,
+ .pagetable_setup_done = native_pagetable_setup_done,
+diff -urNp linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c
+--- linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c 2009-02-21 09:37:48.000000000 -0500
+@@ -13,7 +13,7 @@ default_spin_lock_flags(raw_spinlock_t *
+ __raw_spin_lock(lock);
+ }
+
+-struct pv_lock_ops pv_lock_ops = {
++struct pv_lock_ops pv_lock_ops __read_only = {
+ #ifdef CONFIG_SMP
+ .spin_is_locked = __ticket_spin_is_locked,
+ .spin_is_contended = __ticket_spin_is_contended,
+diff -urNp linux-2.6.28.8/arch/x86/kernel/process_32.c linux-2.6.28.8/arch/x86/kernel/process_32.c
+--- linux-2.6.28.8/arch/x86/kernel/process_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/process_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -65,8 +65,10 @@ asmlinkage void ret_from_fork(void) __as
+ DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task;
+ EXPORT_PER_CPU_SYMBOL(current_task);
+
++#ifdef CONFIG_SMP
+ DEFINE_PER_CPU(int, cpu_number);
+ EXPORT_PER_CPU_SYMBOL(cpu_number);
++#endif
+
+ /*
+ * Return saved PC of a blocked thread.
+@@ -74,6 +76,7 @@ EXPORT_PER_CPU_SYMBOL(cpu_number);
+ unsigned long thread_saved_pc(struct task_struct *tsk)
+ {
+ return ((unsigned long *)tsk->thread.sp)[3];
++//XXX return tsk->thread.eip;
+ }
+
+ #ifndef CONFIG_SMP
+@@ -131,7 +134,7 @@ void __show_regs(struct pt_regs *regs, i
+ unsigned short ss, gs;
+ const char *board;
+
+- if (user_mode_vm(regs)) {
++ if (user_mode(regs)) {
+ sp = regs->sp;
+ ss = regs->ss & 0xffff;
+ savesegment(gs, gs);
+@@ -212,8 +215,8 @@ int kernel_thread(int (*fn)(void *), voi
+ regs.bx = (unsigned long) fn;
+ regs.dx = (unsigned long) arg;
+
+- regs.ds = __USER_DS;
+- regs.es = __USER_DS;
++ regs.ds = __KERNEL_DS;
++ regs.es = __KERNEL_DS;
+ regs.fs = __KERNEL_PERCPU;
+ regs.orig_ax = -1;
+ regs.ip = (unsigned long) kernel_thread_helper;
+@@ -235,7 +238,7 @@ void exit_thread(void)
+ struct task_struct *tsk = current;
+ struct thread_struct *t = &tsk->thread;
+ int cpu = get_cpu();
+- struct tss_struct *tss = &per_cpu(init_tss, cpu);
++ struct tss_struct *tss = init_tss + cpu;
+
+ kfree(t->io_bitmap_ptr);
+ t->io_bitmap_ptr = NULL;
+@@ -264,6 +267,7 @@ void flush_thread(void)
+ {
+ struct task_struct *tsk = current;
+
++ loadsegment(gs, 0);
+ tsk->thread.debugreg0 = 0;
+ tsk->thread.debugreg1 = 0;
+ tsk->thread.debugreg2 = 0;
+@@ -303,7 +307,7 @@ int copy_thread(int nr, unsigned long cl
+ struct task_struct *tsk;
+ int err;
+
+- childregs = task_pt_regs(p);
++ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
+ *childregs = *regs;
+ childregs->ax = 0;
+ childregs->sp = sp;
+@@ -332,6 +336,7 @@ int copy_thread(int nr, unsigned long cl
+ * Set a new TLS for the child thread?
+ */
+ if (clone_flags & CLONE_SETTLS)
++//XXX needs set_fs()?
+ err = do_set_thread_area(p, -1,
+ (struct user_desc __user *)childregs->si, 0);
+
+@@ -553,7 +558,7 @@ struct task_struct * __switch_to(struct
+ struct thread_struct *prev = &prev_p->thread,
+ *next = &next_p->thread;
+ int cpu = smp_processor_id();
+- struct tss_struct *tss = &per_cpu(init_tss, cpu);
++ struct tss_struct *tss = init_tss + cpu;
+
+ /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
+
+@@ -581,6 +586,11 @@ struct task_struct * __switch_to(struct
+ */
+ savesegment(gs, prev->gs);
+
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++ if (!segment_eq(task_thread_info(prev_p)->addr_limit, task_thread_info(next_p)->addr_limit))
++ __set_fs(task_thread_info(next_p)->addr_limit, cpu);
++#endif
++
+ /*
+ * Load the per-thread Thread-Local Storage descriptor.
+ */
+@@ -719,15 +729,27 @@ unsigned long get_wchan(struct task_stru
+ return 0;
+ }
+
+-unsigned long arch_align_stack(unsigned long sp)
++#ifdef CONFIG_PAX_RANDKSTACK
++asmlinkage void pax_randomize_kstack(void)
+ {
+- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+- sp -= get_random_int() % 8192;
+- return sp & ~0xf;
+-}
++ struct thread_struct *thread = ¤t->thread;
++ unsigned long time;
+
+-unsigned long arch_randomize_brk(struct mm_struct *mm)
+-{
+- unsigned long range_end = mm->brk + 0x02000000;
+- return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
++ if (!randomize_va_space)
++ return;
++
++ rdtscl(time);
++
++ /* P4 seems to return a 0 LSB, ignore it */
++#ifdef CONFIG_MPENTIUM4
++ time &= 0x1EUL;
++ time <<= 2;
++#else
++ time &= 0xFUL;
++ time <<= 3;
++#endif
++
++ thread->sp0 ^= time;
++ load_sp0(init_tss + smp_processor_id(), thread);
+ }
++#endif
+diff -urNp linux-2.6.28.8/arch/x86/kernel/process_64.c linux-2.6.28.8/arch/x86/kernel/process_64.c
+--- linux-2.6.28.8/arch/x86/kernel/process_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/process_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -109,6 +109,8 @@ static inline void play_dead(void)
+ void cpu_idle(void)
+ {
+ current_thread_info()->status |= TS_POLLING;
++ current->stack_canary = pax_get_random_long();
++ write_pda(stack_canary, current->stack_canary);
+ /* endless idle loop with no priority at all */
+ while (1) {
+ tick_nohz_stop_sched_tick(1);
+@@ -223,7 +225,7 @@ void exit_thread(void)
+ struct thread_struct *t = &me->thread;
+
+ if (me->thread.io_bitmap_ptr) {
+- struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
++ struct tss_struct *tss = init_tss + get_cpu();
+
+ kfree(t->io_bitmap_ptr);
+ t->io_bitmap_ptr = NULL;
+@@ -558,7 +560,7 @@ __switch_to(struct task_struct *prev_p,
+ struct thread_struct *prev = &prev_p->thread;
+ struct thread_struct *next = &next_p->thread;
+ int cpu = smp_processor_id();
+- struct tss_struct *tss = &per_cpu(init_tss, cpu);
++ struct tss_struct *tss = init_tss + cpu;
+ unsigned fsindex, gsindex;
+
+ /* we're going to use this soon, after a few expensive things */
+@@ -647,7 +649,6 @@ __switch_to(struct task_struct *prev_p,
+ (unsigned long)task_stack_page(next_p) +
+ THREAD_SIZE - PDA_STACKOFFSET);
+ #ifdef CONFIG_CC_STACKPROTECTOR
+- write_pda(stack_canary, next_p->stack_canary);
+ /*
+ * Build time only check to make sure the stack_canary is at
+ * offset 40 in the pda; this is a gcc ABI requirement
+@@ -746,12 +747,11 @@ unsigned long get_wchan(struct task_stru
+ if (!p || p == current || p->state == TASK_RUNNING)
+ return 0;
+ stack = (unsigned long)task_stack_page(p);
+- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
++ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-8-sizeof(u64))
+ return 0;
+ fp = *(u64 *)(p->thread.sp);
+ do {
+- if (fp < (unsigned long)stack ||
+- fp >= (unsigned long)stack+THREAD_SIZE)
++ if (fp < stack || fp > stack+THREAD_SIZE-8-sizeof(u64))
+ return 0;
+ ip = *(u64 *)(fp+8);
+ if (!in_sched_functions(ip))
+@@ -860,16 +860,3 @@ long sys_arch_prctl(int code, unsigned l
+ {
+ return do_arch_prctl(current, code, addr);
+ }
+-
+-unsigned long arch_align_stack(unsigned long sp)
+-{
+- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+- sp -= get_random_int() % 8192;
+- return sp & ~0xf;
+-}
+-
+-unsigned long arch_randomize_brk(struct mm_struct *mm)
+-{
+- unsigned long range_end = mm->brk + 0x02000000;
+- return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
+-}
+diff -urNp linux-2.6.28.8/arch/x86/kernel/ptrace.c linux-2.6.28.8/arch/x86/kernel/ptrace.c
+--- linux-2.6.28.8/arch/x86/kernel/ptrace.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/ptrace.c 2009-03-07 10:29:51.000000000 -0500
+@@ -1502,7 +1502,7 @@ void send_sigtrap(struct task_struct *ts
+ info.si_code = si_code;
+
+ /* User-mode ip? */
+- info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
++ info.si_addr = user_mode(regs) ? (void __user *) regs->ip : NULL;
+
+ /* Send us the fake SIGTRAP */
+ force_sig_info(SIGTRAP, &info, tsk);
+diff -urNp linux-2.6.28.8/arch/x86/kernel/reboot.c linux-2.6.28.8/arch/x86/kernel/reboot.c
+--- linux-2.6.28.8/arch/x86/kernel/reboot.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/reboot.c 2009-03-07 10:32:37.000000000 -0500
+@@ -28,7 +28,7 @@ void (*pm_power_off)(void);
+ EXPORT_SYMBOL(pm_power_off);
+
+ static const struct desc_ptr no_idt = {};
+-static int reboot_mode;
++static unsigned short reboot_mode;
+ enum reboot_type reboot_type = BOOT_KBD;
+ int reboot_force;
+
+@@ -210,7 +210,7 @@ static struct dmi_system_id __initdata r
+ DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"),
+ },
+ },
+- { }
++ { NULL, NULL, {{0, {0}}}, NULL}
+ };
+
+ static int __init reboot_init(void)
+@@ -226,12 +226,12 @@ core_initcall(reboot_init);
+ controller to pulse the CPU reset line, which is more thorough, but
+ doesn't work with at least one type of 486 motherboard. It is easy
+ to stop this code working; hence the copious comments. */
+-static const unsigned long long
+-real_mode_gdt_entries [3] =
++static struct desc_struct
++real_mode_gdt_entries [3] __read_only =
+ {
+- 0x0000000000000000ULL, /* Null descriptor */
+- 0x00009b000000ffffULL, /* 16-bit real-mode 64k code at 0x00000000 */
+- 0x000093000100ffffULL /* 16-bit real-mode 64k data at 0x00000100 */
++ {{{0x00000000, 0x00000000}}}, /* Null descriptor */
++ {{{0x0000ffff, 0x00009b00}}}, /* 16-bit real-mode 64k code at 0x00000000 */
++ {{{0x0100ffff, 0x00009300}}} /* 16-bit real-mode 64k data at 0x00000100 */
+ };
+
+ static const struct desc_ptr
+@@ -280,7 +280,7 @@ static const unsigned char jump_to_bios
+ * specified by the code and length parameters.
+ * We assume that length will aways be less that 100!
+ */
+-void machine_real_restart(const unsigned char *code, int length)
++void machine_real_restart(const unsigned char *code, unsigned int length)
+ {
+ local_irq_disable();
+
+@@ -300,8 +300,8 @@ void machine_real_restart(const unsigned
+ /* Remap the kernel at virtual address zero, as well as offset zero
+ from the kernel segment. This assumes the kernel segment starts at
+ virtual address PAGE_OFFSET. */
+- memcpy(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY,
+- sizeof(swapper_pg_dir [0]) * KERNEL_PGD_PTRS);
++ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY,
++ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY));
+
+ /*
+ * Use `swapper_pg_dir' as our page directory.
+@@ -313,16 +313,15 @@ void machine_real_restart(const unsigned
+ boot)". This seems like a fairly standard thing that gets set by
+ REBOOT.COM programs, and the previous reset routine did this
+ too. */
+- *((unsigned short *)0x472) = reboot_mode;
++ *(unsigned short *)(__va(0x472)) = reboot_mode;
+
+ /* For the switch to real mode, copy some code to low memory. It has
+ to be in the first 64k because it is running in 16-bit mode, and it
+ has to have the same physical and virtual address, because it turns
+ off paging. Copy it near the end of the first page, out of the way
+ of BIOS variables. */
+- memcpy((void *)(0x1000 - sizeof(real_mode_switch) - 100),
+- real_mode_switch, sizeof (real_mode_switch));
+- memcpy((void *)(0x1000 - 100), code, length);
++ memcpy(__va(0x1000 - sizeof (real_mode_switch) - 100), real_mode_switch, sizeof (real_mode_switch));
++ memcpy(__va(0x1000 - 100), code, length);
+
+ /* Set up the IDT for real mode. */
+ load_idt(&real_mode_idt);
+diff -urNp linux-2.6.28.8/arch/x86/kernel/setup.c linux-2.6.28.8/arch/x86/kernel/setup.c
+--- linux-2.6.28.8/arch/x86/kernel/setup.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/setup.c 2009-02-21 09:37:48.000000000 -0500
+@@ -738,6 +738,7 @@ void start_periodic_check_for_corruption
+ }
+ #endif
+
++#ifdef CONFIG_X86_RESERVE_LOW_64K
+ static int __init dmi_low_memory_corruption(const struct dmi_system_id *d)
+ {
+ printk(KERN_NOTICE
+@@ -749,6 +750,7 @@ static int __init dmi_low_memory_corrupt
+
+ return 0;
+ }
++#endif
+
+ /* List of systems that have known low memory corruption BIOS problems */
+ static struct dmi_system_id __initdata bad_bios_dmi_table[] = {
+@@ -845,8 +847,8 @@ void __init setup_arch(char **cmdline_p)
+
+ if (!boot_params.hdr.root_flags)
+ root_mountflags &= ~MS_RDONLY;
+- init_mm.start_code = (unsigned long) _text;
+- init_mm.end_code = (unsigned long) _etext;
++ init_mm.start_code = ktla_ktva((unsigned long) _text);
++ init_mm.end_code = ktla_ktva((unsigned long) _etext);
+ init_mm.end_data = (unsigned long) _edata;
+ #ifdef CONFIG_X86_32
+ init_mm.brk = init_pg_tables_end + PAGE_OFFSET;
+@@ -854,9 +856,9 @@ void __init setup_arch(char **cmdline_p)
+ init_mm.brk = (unsigned long) &_end;
+ #endif
+
+- code_resource.start = virt_to_phys(_text);
+- code_resource.end = virt_to_phys(_etext)-1;
+- data_resource.start = virt_to_phys(_etext);
++ code_resource.start = virt_to_phys(ktla_ktva(_text));
++ code_resource.end = virt_to_phys(ktla_ktva(_etext))-1;
++ data_resource.start = virt_to_phys(_data);
+ data_resource.end = virt_to_phys(_edata)-1;
+ bss_resource.start = virt_to_phys(&__bss_start);
+ bss_resource.end = virt_to_phys(&__bss_stop)-1;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/setup_percpu.c linux-2.6.28.8/arch/x86/kernel/setup_percpu.c
+--- linux-2.6.28.8/arch/x86/kernel/setup_percpu.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/setup_percpu.c 2009-02-21 09:37:48.000000000 -0500
+@@ -179,7 +179,11 @@ void __init setup_per_cpu_areas(void)
+ cpu, node, __pa(ptr));
+ }
+ #endif
++#ifdef CONFIG_X86_32
++ __per_cpu_offset[cpu] = ptr - __per_cpu_start;
++#else
+ per_cpu_offset(cpu) = ptr - __per_cpu_start;
++#endif
+ memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
+ }
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/signal_32.c linux-2.6.28.8/arch/x86/kernel/signal_32.c
+--- linux-2.6.28.8/arch/x86/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -367,9 +367,9 @@ __setup_frame(int sig, struct k_sigactio
+ }
+
+ if (current->mm->context.vdso)
+- restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
++ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
+ else
+- restorer = &frame->retcode;
++ restorer = (void __user *)&frame->retcode;
+ if (ka->sa.sa_flags & SA_RESTORER)
+ restorer = ka->sa.sa_restorer;
+
+@@ -442,7 +442,7 @@ static int __setup_rt_frame(int sig, str
+ return -EFAULT;
+
+ /* Set up to return from userspace. */
+- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
++ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
+ if (ka->sa.sa_flags & SA_RESTORER)
+ restorer = ka->sa.sa_restorer;
+ err |= __put_user(restorer, &frame->pretcode);
+@@ -612,7 +612,7 @@ static void do_signal(struct pt_regs *re
+ * X86_32: vm86 regs switched out by assembly code before reaching
+ * here, so testing against kernel CS suffices.
+ */
+- if (!user_mode(regs))
++ if (!user_mode_novm(regs))
+ return;
+
+ if (current_thread_info()->status & TS_RESTORE_SIGMASK)
+diff -urNp linux-2.6.28.8/arch/x86/kernel/signal_64.c linux-2.6.28.8/arch/x86/kernel/signal_64.c
+--- linux-2.6.28.8/arch/x86/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -239,8 +239,8 @@ static int __setup_rt_frame(int sig, str
+ err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], me);
+ err |= __put_user(fp, &frame->uc.uc_mcontext.fpstate);
+ if (sizeof(*set) == 16) {
+- __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]);
+- __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]);
++ err |= __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]);
++ err |= __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]);
+ } else
+ err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/smpboot.c linux-2.6.28.8/arch/x86/kernel/smpboot.c
+--- linux-2.6.28.8/arch/x86/kernel/smpboot.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/smpboot.c 2009-02-21 09:37:48.000000000 -0500
+@@ -814,6 +814,11 @@ static int __cpuinit do_boot_cpu(int api
+ .cpu = cpu,
+ .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done),
+ };
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ INIT_WORK(&c_idle.work, do_fork_idle);
+
+ #ifdef CONFIG_X86_64
+@@ -864,7 +869,17 @@ do_rest:
+ cpu_pda(cpu)->pcurrent = c_idle.idle;
+ clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
+ #endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ initial_code = (unsigned long)start_secondary;
+ stack_start.sp = (void *) c_idle.idle->thread.sp;
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/smpcommon.c linux-2.6.28.8/arch/x86/kernel/smpcommon.c
+--- linux-2.6.28.8/arch/x86/kernel/smpcommon.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/smpcommon.c 2009-02-21 09:37:48.000000000 -0500
+@@ -3,9 +3,10 @@
+ */
+ #include <linux/module.h>
+ #include <asm/smp.h>
++#include <asm/sections.h>
+
+ #ifdef CONFIG_X86_32
+-DEFINE_PER_CPU(unsigned long, this_cpu_off);
++DEFINE_PER_CPU(unsigned long, this_cpu_off) = (unsigned long)__per_cpu_start;
+ EXPORT_PER_CPU_SYMBOL(this_cpu_off);
+
+ /*
+@@ -15,16 +16,19 @@ EXPORT_PER_CPU_SYMBOL(this_cpu_off);
+ */
+ __cpuinit void init_gdt(int cpu)
+ {
+- struct desc_struct gdt;
++ struct desc_struct d, *gdt = get_cpu_gdt_table(cpu);
++ unsigned long base, limit;
+
+- pack_descriptor(&gdt, __per_cpu_offset[cpu], 0xFFFFF,
+- 0x2 | DESCTYPE_S, 0x8);
+- gdt.s = 1;
++ base = per_cpu_offset(cpu);
++ limit = PERCPU_ENOUGH_ROOM - 1;
++ if (limit < 64*1024)
++ pack_descriptor(&d, base, limit, 0x80 | DESCTYPE_S | 0x3, 0x4);
++ else
++ pack_descriptor(&d, base, limit >> PAGE_SHIFT, 0x80 | DESCTYPE_S | 0x3, 0xC);
+
+- write_gdt_entry(get_cpu_gdt_table(cpu),
+- GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
++ write_gdt_entry(gdt, GDT_ENTRY_PERCPU, &d, DESCTYPE_S);
+
+- per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu];
++ per_cpu(this_cpu_off, cpu) = base;
+ per_cpu(cpu_number, cpu) = cpu;
+ }
+ #endif
+diff -urNp linux-2.6.28.8/arch/x86/kernel/step.c linux-2.6.28.8/arch/x86/kernel/step.c
+--- linux-2.6.28.8/arch/x86/kernel/step.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/step.c 2009-02-21 09:37:48.000000000 -0500
+@@ -23,22 +23,20 @@ unsigned long convert_ip_to_linear(struc
+ * and APM bios ones we just ignore here.
+ */
+ if ((seg & SEGMENT_TI_MASK) == SEGMENT_LDT) {
+- u32 *desc;
++ struct desc_struct *desc;
+ unsigned long base;
+
+- seg &= ~7UL;
++ seg >>= 3;
+
+ mutex_lock(&child->mm->context.lock);
+- if (unlikely((seg >> 3) >= child->mm->context.size))
+- addr = -1L; /* bogus selector, access would fault */
++ if (unlikely(seg >= child->mm->context.size))
++ addr = -EINVAL;
+ else {
+- desc = child->mm->context.ldt + seg;
+- base = ((desc[0] >> 16) |
+- ((desc[1] & 0xff) << 16) |
+- (desc[1] & 0xff000000));
++ desc = &child->mm->context.ldt[seg];
++ base = (desc->a >> 16) | ((desc->b & 0xff) << 16) | (desc->b & 0xff000000);
+
+ /* 16-bit code segment? */
+- if (!((desc[1] >> 22) & 1))
++ if (!((desc->b >> 22) & 1))
+ addr &= 0xffff;
+ addr += base;
+ }
+@@ -54,6 +52,9 @@ static int is_setting_trap_flag(struct t
+ unsigned char opcode[15];
+ unsigned long addr = convert_ip_to_linear(child, regs);
+
++ if (addr == -EINVAL)
++ return 0;
++
+ copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
+ for (i = 0; i < copied; i++) {
+ switch (opcode[i]) {
+@@ -75,7 +76,7 @@ static int is_setting_trap_flag(struct t
+
+ #ifdef CONFIG_X86_64
+ case 0x40 ... 0x4f:
+- if (regs->cs != __USER_CS)
++ if ((regs->cs & 0xffff) != __USER_CS)
+ /* 32-bit mode: register increment */
+ return 0;
+ /* 64-bit mode: REX prefix */
+diff -urNp linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S
+--- linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S 2009-02-21 09:37:48.000000000 -0500
+@@ -1,3 +1,4 @@
++.section .rodata,"a",@progbits
+ ENTRY(sys_call_table)
+ .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */
+ .long sys_exit
+diff -urNp linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c
+--- linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -24,6 +24,21 @@
+
+ #include <asm/syscalls.h>
+
++int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
++{
++ unsigned long pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++ if (len > pax_task_size || addr > pax_task_size - len)
++ return -EINVAL;
++
++ return 0;
++}
++
+ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long pgoff)
+@@ -83,6 +98,205 @@ out:
+ return err;
+ }
+
++unsigned long
++arch_get_unmapped_area(struct file *filp, unsigned long addr,
++ unsigned long len, unsigned long pgoff, unsigned long flags)
++{
++ struct mm_struct *mm = current->mm;
++ struct vm_area_struct *vma;
++ unsigned long start_addr, pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++ if (len > pax_task_size)
++ return -ENOMEM;
++
++ if (flags & MAP_FIXED)
++ return addr;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
++ if (addr) {
++ addr = PAGE_ALIGN(addr);
++ vma = find_vma(mm, addr);
++ if (pax_task_size - len >= addr &&
++ (!vma || addr + len <= vma->vm_start))
++ return addr;
++ }
++ if (len > mm->cached_hole_size) {
++ start_addr = addr = mm->free_area_cache;
++ } else {
++ start_addr = addr = mm->mmap_base;
++ mm->cached_hole_size = 0;
++ }
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) {
++ start_addr = 0x00110000UL;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ start_addr += mm->delta_mmap & 0x03FFF000UL;
++#endif
++
++ if (mm->start_brk <= start_addr && start_addr < mm->mmap_base)
++ start_addr = addr = mm->mmap_base;
++ else
++ addr = start_addr;
++ }
++#endif
++
++full_search:
++ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
++ /* At this point: (!vma || addr < vma->vm_end). */
++ if (pax_task_size - len < addr) {
++ /*
++ * Start a new search - just in case we missed
++ * some holes.
++ */
++ if (start_addr != mm->mmap_base) {
++ start_addr = addr = mm->mmap_base;
++ mm->cached_hole_size = 0;
++ goto full_search;
++ }
++ return -ENOMEM;
++ }
++ if (!vma || addr + len <= vma->vm_start) {
++ /*
++ * Remember the place where we stopped the search:
++ */
++ mm->free_area_cache = addr + len;
++ return addr;
++ }
++ if (addr + mm->cached_hole_size < vma->vm_start)
++ mm->cached_hole_size = vma->vm_start - addr;
++ addr = vma->vm_end;
++ if (mm->start_brk <= addr && addr < mm->mmap_base) {
++ start_addr = addr = mm->mmap_base;
++ mm->cached_hole_size = 0;
++ goto full_search;
++ }
++ }
++}
++
++unsigned long
++arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
++ const unsigned long len, const unsigned long pgoff,
++ const unsigned long flags)
++{
++ struct vm_area_struct *vma;
++ struct mm_struct *mm = current->mm;
++ unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++ /* requested length too big for entire address space */
++ if (len > pax_task_size)
++ return -ENOMEM;
++
++ if (flags & MAP_FIXED)
++ return addr;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
++ goto bottomup;
++#endif
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
++ /* requesting a specific address */
++ if (addr) {
++ addr = PAGE_ALIGN(addr);
++ vma = find_vma(mm, addr);
++ if (pax_task_size - len >= addr &&
++ (!vma || addr + len <= vma->vm_start))
++ return addr;
++ }
++
++ /* check if free_area_cache is useful for us */
++ if (len <= mm->cached_hole_size) {
++ mm->cached_hole_size = 0;
++ mm->free_area_cache = mm->mmap_base;
++ }
++
++ /* either no address requested or can't fit in requested address hole */
++ addr = mm->free_area_cache;
++
++ /* make sure it can fit in the remaining address space */
++ if (addr > len) {
++ vma = find_vma(mm, addr-len);
++ if (!vma || addr <= vma->vm_start)
++ /* remember the address as a hint for next time */
++ return (mm->free_area_cache = addr-len);
++ }
++
++ if (mm->mmap_base < len)
++ goto bottomup;
++
++ addr = mm->mmap_base-len;
++
++ do {
++ /*
++ * Lookup failure means no vma is above this address,
++ * else if new region fits below vma->vm_start,
++ * return with success:
++ */
++ vma = find_vma(mm, addr);
++ if (!vma || addr+len <= vma->vm_start)
++ /* remember the address as a hint for next time */
++ return (mm->free_area_cache = addr);
++
++ /* remember the largest hole we saw so far */
++ if (addr + mm->cached_hole_size < vma->vm_start)
++ mm->cached_hole_size = vma->vm_start - addr;
++
++ /* try just below the current vma->vm_start */
++ addr = vma->vm_start-len;
++ } while (len < vma->vm_start);
++
++bottomup:
++ /*
++ * A failed mmap() very likely causes application failure,
++ * so fall back to the bottom-up function here. This scenario
++ * can happen with large stack limits and large mmap()
++ * allocations.
++ */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE;
++ else
++#endif
++
++ mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
++ mm->free_area_cache = mm->mmap_base;
++ mm->cached_hole_size = ~0UL;
++ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
++ /*
++ * Restore the topdown base:
++ */
++ mm->mmap_base = base;
++ mm->free_area_cache = base;
++ mm->cached_hole_size = ~0UL;
++
++ return addr;
++}
+
+ struct sel_arg_struct {
+ unsigned long n;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c
+--- linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -47,8 +47,8 @@ out:
+ return error;
+ }
+
+-static void find_start_end(unsigned long flags, unsigned long *begin,
+- unsigned long *end)
++static void find_start_end(struct mm_struct *mm, unsigned long flags,
++ unsigned long *begin, unsigned long *end)
+ {
+ if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) {
+ unsigned long new_begin;
+@@ -67,7 +67,7 @@ static void find_start_end(unsigned long
+ *begin = new_begin;
+ }
+ } else {
+- *begin = TASK_UNMAPPED_BASE;
++ *begin = mm->mmap_base;
+ *end = TASK_SIZE;
+ }
+ }
+@@ -84,11 +84,15 @@ arch_get_unmapped_area(struct file *filp
+ if (flags & MAP_FIXED)
+ return addr;
+
+- find_start_end(flags, &begin, &end);
++ find_start_end(mm, flags, &begin, &end);
+
+ if (len > end)
+ return -ENOMEM;
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ if (addr) {
+ addr = PAGE_ALIGN(addr);
+ vma = find_vma(mm, addr);
+@@ -143,7 +147,7 @@ arch_get_unmapped_area_topdown(struct fi
+ {
+ struct vm_area_struct *vma;
+ struct mm_struct *mm = current->mm;
+- unsigned long addr = addr0;
++ unsigned long base = mm->mmap_base, addr = addr0;
+
+ /* requested length too big for entire address space */
+ if (len > TASK_SIZE)
+@@ -156,6 +160,10 @@ arch_get_unmapped_area_topdown(struct fi
+ if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT))
+ goto bottomup;
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ /* requesting a specific address */
+ if (addr) {
+ addr = PAGE_ALIGN(addr);
+@@ -213,13 +221,21 @@ bottomup:
+ * can happen with large stack limits and large mmap()
+ * allocations.
+ */
++ mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
++ mm->free_area_cache = mm->mmap_base;
+ mm->cached_hole_size = ~0UL;
+- mm->free_area_cache = TASK_UNMAPPED_BASE;
+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+ /*
+ * Restore the topdown base:
+ */
+- mm->free_area_cache = mm->mmap_base;
++ mm->mmap_base = base;
++ mm->free_area_cache = base;
+ mm->cached_hole_size = ~0UL;
+
+ return addr;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/time_32.c linux-2.6.28.8/arch/x86/kernel/time_32.c
+--- linux-2.6.28.8/arch/x86/kernel/time_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/time_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -47,22 +47,32 @@ unsigned long profile_pc(struct pt_regs
+ unsigned long pc = instruction_pointer(regs);
+
+ #ifdef CONFIG_SMP
+- if (!user_mode_vm(regs) && in_lock_functions(pc)) {
++ if (!user_mode(regs) && in_lock_functions(pc)) {
+ #ifdef CONFIG_FRAME_POINTER
+- return *(unsigned long *)(regs->bp + sizeof(long));
++ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
+ #else
+ unsigned long *sp = (unsigned long *)®s->sp;
+
+ /* Return address is either directly at stack pointer
+ or above a saved flags. Eflags has bits 22-31 zero,
+ kernel addresses don't. */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ return ktla_ktva(sp[0]);
++#else
+ if (sp[0] >> 22)
+ return sp[0];
+ if (sp[1] >> 22)
+ return sp[1];
+ #endif
++
++#endif
+ }
+ #endif
++
++ if (!user_mode(regs))
++ pc = ktla_ktva(pc);
++
+ return pc;
+ }
+ EXPORT_SYMBOL(profile_pc);
+diff -urNp linux-2.6.28.8/arch/x86/kernel/time_64.c linux-2.6.28.8/arch/x86/kernel/time_64.c
+--- linux-2.6.28.8/arch/x86/kernel/time_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/time_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -34,7 +34,7 @@ unsigned long profile_pc(struct pt_regs
+ /* Assume the lock function has either no stack frame or a copy
+ of flags from PUSHF
+ Eflags always has bits 22 and up cleared unlike kernel addresses. */
+- if (!user_mode_vm(regs) && in_lock_functions(pc)) {
++ if (!user_mode(regs) && in_lock_functions(pc)) {
+ #ifdef CONFIG_FRAME_POINTER
+ return *(unsigned long *)(regs->bp + sizeof(long));
+ #else
+diff -urNp linux-2.6.28.8/arch/x86/kernel/tlb_32.c linux-2.6.28.8/arch/x86/kernel/tlb_32.c
+--- linux-2.6.28.8/arch/x86/kernel/tlb_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/tlb_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -5,7 +5,7 @@
+ #include <asm/tlbflush.h>
+
+ DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate)
+- ____cacheline_aligned = { &init_mm, 0, };
++ ____cacheline_aligned = { &init_mm, 0, {0} };
+
+ /* must come after the send_IPI functions above for inlining */
+ #include <mach_ipi.h>
+diff -urNp linux-2.6.28.8/arch/x86/kernel/tls.c linux-2.6.28.8/arch/x86/kernel/tls.c
+--- linux-2.6.28.8/arch/x86/kernel/tls.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/tls.c 2009-02-21 09:37:48.000000000 -0500
+@@ -85,6 +85,11 @@ int do_set_thread_area(struct task_struc
+ if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
+ return -EINVAL;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
++ return -EINVAL;
++#endif
++
+ set_tls_desc(p, idx, &info, 1);
+
+ return 0;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/traps.c linux-2.6.28.8/arch/x86/kernel/traps.c
+--- linux-2.6.28.8/arch/x86/kernel/traps.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/traps.c 2009-03-07 10:29:51.000000000 -0500
+@@ -79,14 +79,6 @@ asmlinkage int system_call(void);
+
+ /* Do we ignore FPU interrupts ? */
+ char ignore_fpu_irq;
+-
+-/*
+- * The IDT has to be page-aligned to simplify the Pentium
+- * F0 0F bug workaround.. We have a special link segment
+- * for this.
+- */
+-gate_desc idt_table[256]
+- __attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
+ #endif
+
+ static int ignore_nmis;
+@@ -121,7 +113,7 @@ static inline void preempt_conditional_c
+ static inline void
+ die_if_kernel(const char *str, struct pt_regs *regs, long err)
+ {
+- if (!user_mode_vm(regs))
++ if (!user_mode(regs))
+ die(str, regs, err);
+ }
+
+@@ -138,7 +130,7 @@ static int lazy_iobitmap_copy(void)
+ int cpu;
+
+ cpu = get_cpu();
+- tss = &per_cpu(init_tss, cpu);
++ tss = init_tss + cpu;
+ thread = ¤t->thread;
+
+ if (tss->x86_tss.io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY &&
+@@ -174,7 +166,7 @@ do_trap(int trapnr, int signr, char *str
+ struct task_struct *tsk = current;
+
+ #ifdef CONFIG_X86_32
+- if (regs->flags & X86_VM_MASK) {
++ if (v8086_mode(regs)) {
+ /*
+ * traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
+ * On nmi (interrupt 2), do_trap should not be called.
+@@ -185,7 +177,7 @@ do_trap(int trapnr, int signr, char *str
+ }
+ #endif
+
+- if (!user_mode(regs))
++ if (!user_mode_novm(regs))
+ goto kernel_trap;
+
+ #ifdef CONFIG_X86_32
+@@ -227,6 +219,12 @@ kernel_trap:
+ tsk->thread.trap_no = trapnr;
+ die(str, regs, error_code);
+ }
++
++#ifdef CONFIG_PAX_REFCOUNT
++ if (trapnr == 4)
++ pax_report_refcount_overflow(regs);
++#endif
++
+ return;
+
+ #ifdef CONFIG_X86_32
+@@ -318,14 +316,30 @@ do_general_protection(struct pt_regs *re
+ return;
+ }
+
+- if (regs->flags & X86_VM_MASK)
++ if (v8086_mode(regs))
+ goto gp_in_vm86;
+ #endif
+
+ tsk = current;
+- if (!user_mode(regs))
++ if (!user_mode_novm(regs))
+ goto gp_in_kernel;
+
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
++ if (!nx_enabled && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
++ struct mm_struct *mm = tsk->mm;
++ unsigned long limit;
++
++ down_write(&mm->mmap_sem);
++ limit = mm->context.user_cs_limit;
++ if (limit < TASK_SIZE) {
++ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
++ up_write(&mm->mmap_sem);
++ return;
++ }
++ up_write(&mm->mmap_sem);
++ }
++#endif
++
+ tsk->thread.error_code = error_code;
+ tsk->thread.trap_no = 13;
+
+@@ -358,6 +372,13 @@ gp_in_kernel:
+ if (notify_die(DIE_GPF, "general protection fault", regs,
+ error_code, 13, SIGSEGV) == NOTIFY_STOP)
+ return;
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++ if ((regs->cs & 0xFFFF) == __KERNEL_CS)
++ die("PAX: suspicious general protection fault", regs, error_code);
++ else
++#endif
++
+ die("general protection fault", regs, error_code);
+ }
+
+@@ -604,7 +625,7 @@ dotraplinkage void __kprobes do_debug(st
+ }
+
+ #ifdef CONFIG_X86_32
+- if (regs->flags & X86_VM_MASK)
++ if (v8086_mode(regs))
+ goto debug_vm86;
+ #endif
+
+@@ -616,7 +637,7 @@ dotraplinkage void __kprobes do_debug(st
+ * kernel space (but re-enable TF when returning to user mode).
+ */
+ if (condition & DR_STEP) {
+- if (!user_mode(regs))
++ if (!user_mode_novm(regs))
+ goto clear_TF_reenable;
+ }
+
+@@ -808,7 +829,7 @@ do_simd_coprocessor_error(struct pt_regs
+ * Handle strange cache flush from user space exception
+ * in all other cases. This is undocumented behaviour.
+ */
+- if (regs->flags & X86_VM_MASK) {
++ if (v8086_mode(regs)) {
+ handle_vm86_fault((struct kernel_vm86_regs *)regs, error_code);
+ return;
+ }
+@@ -837,19 +858,14 @@ do_spurious_interrupt_bug(struct pt_regs
+ #ifdef CONFIG_X86_32
+ unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp)
+ {
+- struct desc_struct *gdt = get_cpu_gdt_table(smp_processor_id());
+ unsigned long base = (kesp - uesp) & -THREAD_SIZE;
+ unsigned long new_kesp = kesp - base;
+ unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT;
+- __u64 desc = *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS];
++ struct desc_struct ss;
+
+ /* Set up base for espfix segment */
+- desc &= 0x00f0ff0000000000ULL;
+- desc |= ((((__u64)base) << 16) & 0x000000ffffff0000ULL) |
+- ((((__u64)base) << 32) & 0xff00000000000000ULL) |
+- ((((__u64)lim_pages) << 32) & 0x000f000000000000ULL) |
+- (lim_pages & 0xffff);
+- *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS] = desc;
++ pack_descriptor(&ss, base, lim_pages, 0x93, 0xC);
++ write_gdt_entry(get_cpu_gdt_table(smp_processor_id()), GDT_ENTRY_ESPFIX_SS, &ss, DESCTYPE_S);
+
+ return new_kesp;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/kernel/tsc.c linux-2.6.28.8/arch/x86/kernel/tsc.c
+--- linux-2.6.28.8/arch/x86/kernel/tsc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/tsc.c 2009-02-21 09:37:48.000000000 -0500
+@@ -728,7 +728,7 @@ static struct dmi_system_id __initdata b
+ DMI_MATCH(DMI_BOARD_NAME, "2635FA0"),
+ },
+ },
+- {}
++ { NULL, NULL, {{0, {0}}}, NULL}
+ };
+
+ /*
+diff -urNp linux-2.6.28.8/arch/x86/kernel/vm86_32.c linux-2.6.28.8/arch/x86/kernel/vm86_32.c
+--- linux-2.6.28.8/arch/x86/kernel/vm86_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/vm86_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -148,7 +148,7 @@ struct pt_regs *save_v86_state(struct ke
+ do_exit(SIGSEGV);
+ }
+
+- tss = &per_cpu(init_tss, get_cpu());
++ tss = init_tss + get_cpu();
+ current->thread.sp0 = current->thread.saved_sp0;
+ current->thread.sysenter_cs = __KERNEL_CS;
+ load_sp0(tss, ¤t->thread);
+@@ -325,7 +325,7 @@ static void do_sys_vm86(struct kernel_vm
+ tsk->thread.saved_fs = info->regs32->fs;
+ savesegment(gs, tsk->thread.saved_gs);
+
+- tss = &per_cpu(init_tss, get_cpu());
++ tss = init_tss + get_cpu();
+ tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
+ if (cpu_has_sep)
+ tsk->thread.sysenter_cs = 0;
+diff -urNp linux-2.6.28.8/arch/x86/kernel/vmi_32.c linux-2.6.28.8/arch/x86/kernel/vmi_32.c
+--- linux-2.6.28.8/arch/x86/kernel/vmi_32.c 2009-02-08 00:54:27.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/vmi_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -102,18 +102,43 @@ static unsigned patch_internal(int call,
+ {
+ u64 reloc;
+ struct vmi_relocation_info *const rel = (struct vmi_relocation_info *)&reloc;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ reloc = call_vrom_long_func(vmi_rom, get_reloc, call);
+ switch(rel->type) {
+ case VMI_RELOCATION_CALL_REL:
+ BUG_ON(len < 5);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ *(char *)insnbuf = MNEM_CALL;
+ patch_offset(insnbuf, ip, (unsigned long)rel->eip);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ return 5;
+
+ case VMI_RELOCATION_JUMP_REL:
+ BUG_ON(len < 5);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ *(char *)insnbuf = MNEM_JMP;
+ patch_offset(insnbuf, ip, (unsigned long)rel->eip);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ return 5;
+
+ case VMI_RELOCATION_NOP:
+@@ -526,14 +551,14 @@ static void vmi_set_pud(pud_t *pudp, pud
+
+ static void vmi_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+ {
+- const pte_t pte = { .pte = 0 };
++ const pte_t pte = __pte(0ULL);
+ vmi_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE);
+ vmi_ops.set_pte(pte, ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0));
+ }
+
+ static void vmi_pmd_clear(pmd_t *pmd)
+ {
+- const pte_t pte = { .pte = 0 };
++ const pte_t pte = __pte(0ULL);
+ vmi_check_page_type(__pa(pmd) >> PAGE_SHIFT, VMI_PAGE_PMD);
+ vmi_ops.set_pte(pte, (pte_t *)pmd, VMI_PAGE_PD);
+ }
+@@ -562,8 +587,8 @@ vmi_startup_ipi_hook(int phys_apicid, un
+ ap.ss = __KERNEL_DS;
+ ap.esp = (unsigned long) start_esp;
+
+- ap.ds = __USER_DS;
+- ap.es = __USER_DS;
++ ap.ds = __KERNEL_DS;
++ ap.es = __KERNEL_DS;
+ ap.fs = __KERNEL_PERCPU;
+ ap.gs = 0;
+
+@@ -758,12 +783,20 @@ static inline int __init activate_vmi(vo
+ u64 reloc;
+ const struct vmi_relocation_info *rel = (struct vmi_relocation_info *)&reloc;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ if (call_vrom_func(vmi_rom, vmi_init) != 0) {
+ printk(KERN_ERR "VMI ROM failed to initialize!");
+ return 0;
+ }
+ savesegment(cs, kernel_cs);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ pv_info.paravirt_enabled = 1;
+ pv_info.kernel_rpl = kernel_cs & SEGMENT_RPL_MASK;
+ pv_info.name = "vmi";
+@@ -954,6 +987,10 @@ static inline int __init activate_vmi(vo
+
+ para_fill(pv_irq_ops.safe_halt, Halt);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ /*
+ * Alternative instruction rewriting doesn't happen soon enough
+ * to convert VMI_IRET to a call instead of a jump; so we have
+diff -urNp linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S
+--- linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S 2009-03-07 10:35:39.000000000 -0500
+@@ -15,6 +15,20 @@
+ #include <asm/page.h>
+ #include <asm/cache.h>
+ #include <asm/boot.h>
++#include <asm/segment.h>
++
++#ifdef CONFIG_X86_PAE
++#define PMD_SHIFT 21
++#else
++#define PMD_SHIFT 22
++#endif
++#define PMD_SIZE (1 << PMD_SHIFT)
++
++#ifdef CONFIG_PAX_KERNEXEC
++#define __KERNEL_TEXT_OFFSET (__PAGE_OFFSET + (((____LOAD_PHYSICAL_ADDR + 2*(PMD_SIZE - 1)) - 1) & ~(PMD_SIZE - 1)))
++#else
++#define __KERNEL_TEXT_OFFSET 0
++#endif
+
+ OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+ OUTPUT_ARCH(i386)
+@@ -22,81 +36,23 @@ ENTRY(phys_startup_32)
+ jiffies = jiffies_64;
+
+ PHDRS {
+- text PT_LOAD FLAGS(5); /* R_E */
+- data PT_LOAD FLAGS(7); /* RWE */
+- note PT_NOTE FLAGS(0); /* ___ */
++ initdata PT_LOAD FLAGS(6); /* RW_ */
++ percpu PT_LOAD FLAGS(6); /* RW_ */
++ inittext PT_LOAD FLAGS(5); /* R_E */
++ text PT_LOAD FLAGS(5); /* R_E */
++ rodata PT_LOAD FLAGS(4); /* R__ */
++ data PT_LOAD FLAGS(6); /* RW_ */
++ note PT_NOTE FLAGS(0); /* ___ */
+ }
+ SECTIONS
+ {
+- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
+- phys_startup_32 = startup_32 - LOAD_OFFSET;
+-
+- .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) {
+- _text = .; /* Text and read-only data */
+- *(.text.head)
+- } :text = 0x9090
+-
+- /* read-only */
+- .text : AT(ADDR(.text) - LOAD_OFFSET) {
+- . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */
+- *(.text.page_aligned)
+- TEXT_TEXT
+- SCHED_TEXT
+- LOCK_TEXT
+- KPROBES_TEXT
+- *(.fixup)
+- *(.gnu.warning)
+- _etext = .; /* End of text section */
+- } :text = 0x9090
+-
+- NOTES :text :note
+-
+- . = ALIGN(16); /* Exception table */
+- __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
+- __start___ex_table = .;
+- *(__ex_table)
+- __stop___ex_table = .;
+- } :text = 0x9090
+-
+- RODATA
+-
+- /* writeable */
+- . = ALIGN(PAGE_SIZE);
+- .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
+- DATA_DATA
+- CONSTRUCTORS
+- } :data
+-
+- . = ALIGN(PAGE_SIZE);
+- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
+- __nosave_begin = .;
+- *(.data.nosave)
+- . = ALIGN(PAGE_SIZE);
+- __nosave_end = .;
+- }
++ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
+
+- . = ALIGN(PAGE_SIZE);
+- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
+- *(.data.page_aligned)
+- *(.data.idt)
+- }
+-
+- . = ALIGN(32);
+- .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
+- *(.data.cacheline_aligned)
+- }
+-
+- /* rarely changed data like cpu maps */
+- . = ALIGN(32);
+- .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
+- *(.data.read_mostly)
+- _edata = .; /* End of data section */
+- }
+-
+- . = ALIGN(THREAD_SIZE); /* init_task */
+- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
+- *(.data.init_task)
+- }
++ .text.startup : AT(ADDR(.text.startup) - LOAD_OFFSET) {
++ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET;
++ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
++ *(.text.startup)
++ } :initdata
+
+ /* might get freed after init */
+ . = ALIGN(PAGE_SIZE);
+@@ -114,14 +70,8 @@ SECTIONS
+ . = ALIGN(PAGE_SIZE);
+
+ /* will be freed after init */
+- . = ALIGN(PAGE_SIZE); /* Init code and data */
+- .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
+- __init_begin = .;
+- _sinittext = .;
+- INIT_TEXT
+- _einittext = .;
+- }
+ .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
++ __init_begin = .;
+ INIT_DATA
+ }
+ . = ALIGN(16);
+@@ -161,11 +111,6 @@ SECTIONS
+ *(.parainstructions)
+ __parainstructions_end = .;
+ }
+- /* .exit.text is discard at runtime, not link time, to deal with references
+- from .altinstructions and .eh_frame */
+- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
+- EXIT_TEXT
+- }
+ .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
+ EXIT_DATA
+ }
+@@ -178,18 +123,138 @@ SECTIONS
+ }
+ #endif
+ . = ALIGN(PAGE_SIZE);
+- .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) {
+- __per_cpu_start = .;
+- *(.data.percpu.page_aligned)
++ per_cpu_start = .;
++ .data.percpu (0) : AT(ADDR(.data.percpu) - LOAD_OFFSET + per_cpu_start) {
++ __per_cpu_start = . + per_cpu_start;
++ LONG(0)
+ *(.data.percpu)
+ *(.data.percpu.shared_aligned)
+- __per_cpu_end = .;
+- }
++ . = ALIGN(PAGE_SIZE);
++ *(.data.percpu.page_aligned)
++ __per_cpu_end = . + per_cpu_start;
++ } :percpu
++ . += per_cpu_start;
+ . = ALIGN(PAGE_SIZE);
+ /* freed after init ends here */
+
++ . = ALIGN(PAGE_SIZE); /* Init code and data */
++ .init.text (. - __KERNEL_TEXT_OFFSET) : AT(ADDR(.init.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
++ _sinittext = .;
++ INIT_TEXT
++ _einittext = .;
++ } :inittext
++
++ /* .exit.text is discard at runtime, not link time, to deal with references
++ from .altinstructions and .eh_frame */
++ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
++ EXIT_TEXT
++ }
++
++ .filler : AT(ADDR(.filler) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
++ BYTE(0)
++ . = ALIGN(2*PMD_SIZE) - 1;
++ }
++
++ /* freed after init ends here */
++
++ .text.head : AT(ADDR(.text.head) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
++ __init_end = . + __KERNEL_TEXT_OFFSET;
++ KERNEL_TEXT_OFFSET = . + __KERNEL_TEXT_OFFSET;
++ _text = .; /* Text and read-only data */
++ *(.text.head)
++ } :text = 0x9090
++
++ /* read-only */
++ .text : AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
++ . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */
++ *(.text.page_aligned)
++ TEXT_TEXT
++ SCHED_TEXT
++ LOCK_TEXT
++ KPROBES_TEXT
++ *(.fixup)
++ *(.gnu.warning)
++ _etext = .; /* End of text section */
++ } :text = 0x9090
++
++ . += __KERNEL_TEXT_OFFSET;
++
++ . = ALIGN(4096);
++ NOTES :rodata :note
++
++ . = ALIGN(16); /* Exception table */
++ __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
++ __start___ex_table = .;
++ *(__ex_table)
++ __stop___ex_table = .;
++ } :rodata
++
++ RO_DATA(PAGE_SIZE)
++
++ . = ALIGN(PAGE_SIZE);
++ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
++ *(.idt)
++ . = ALIGN(PAGE_SIZE);
++ *(.empty_zero_page)
++ *(.swapper_pg_pmd)
++ *(.swapper_pg_dir)
++
++#if defined(CONFIG_PAX_KERNEXEC) && !defined(CONFIG_MODULES)
++ . = ALIGN(PMD_SIZE);
++#endif
++
++ }
++
++#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES)
++ . = ALIGN(PAGE_SIZE);
++ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
++ MODULES_VADDR = .;
++ BYTE(0)
++ . += (6 * 1024 * 1024);
++ . = ALIGN(PMD_SIZE);
++ MODULES_END = . - 1;
++ }
++#endif
++
++ /* writeable */
++ . = ALIGN(PAGE_SIZE);
++ .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
++ _data = .;
++ DATA_DATA
++ CONSTRUCTORS
++ } :data
++
++ . = ALIGN(PAGE_SIZE);
++ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
++ __nosave_begin = .;
++ *(.data.nosave)
++ . = ALIGN(PAGE_SIZE);
++ __nosave_end = .;
++ }
++
++ . = ALIGN(PAGE_SIZE);
++ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
++ *(.data.page_aligned)
++ }
++
++ . = ALIGN(32);
++ .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
++ *(.data.cacheline_aligned)
++ }
++
++ /* rarely changed data like cpu maps */
++ . = ALIGN(32);
++ .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
++ *(.data.read_mostly)
++ _edata = .; /* End of data section */
++ }
++
++ . = ALIGN(THREAD_SIZE); /* init_task */
++ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
++ *(.data.init_task)
++ }
++
+ .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
+- __init_end = .;
+ __bss_start = .; /* BSS */
+ *(.bss.page_aligned)
+ *(.bss)
+diff -urNp linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S
+--- linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S 2009-02-21 09:37:48.000000000 -0500
+@@ -16,7 +16,7 @@ jiffies_64 = jiffies;
+ _proxy_pda = 1;
+ PHDRS {
+ text PT_LOAD FLAGS(5); /* R_E */
+- data PT_LOAD FLAGS(7); /* RWE */
++ data PT_LOAD FLAGS(6); /* RW_ */
+ user PT_LOAD FLAGS(7); /* RWE */
+ data.init PT_LOAD FLAGS(7); /* RWE */
+ note PT_NOTE FLAGS(0); /* ___ */
+@@ -49,17 +49,20 @@ SECTIONS
+ __stop___ex_table = .;
+ } :text = 0x9090
+
+- RODATA
++ RO_DATA(PAGE_SIZE)
+
++#ifdef CONFIG_PAX_KERNEXEC
++ . = ALIGN(2*1024*1024); /* Align data segment to PMD size boundary */
++#else
+ . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */
++#endif
+ /* Data */
++ _data = .;
+ .data : AT(ADDR(.data) - LOAD_OFFSET) {
+ DATA_DATA
+ CONSTRUCTORS
+ } :data
+
+- _edata = .; /* End of data section */
+-
+ . = ALIGN(PAGE_SIZE);
+ . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
+ .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
+@@ -70,9 +73,27 @@ SECTIONS
+ *(.data.read_mostly)
+ }
+
++ . = ALIGN(THREAD_SIZE); /* init_task */
++ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
++ *(.data.init_task)
++ }
++
++ . = ALIGN(PAGE_SIZE);
++ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
++ *(.data.page_aligned)
++ }
++
++ . = ALIGN(PAGE_SIZE);
++ __nosave_begin = .;
++ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
++ . = ALIGN(PAGE_SIZE);
++ __nosave_end = .;
++
++ _edata = .; /* End of data section */
++
+ #define VSYSCALL_ADDR (-10*1024*1024)
+-#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095))
+-#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095))
++#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095))
++#define VSYSCALL_VIRT_ADDR ((ADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095))
+
+ #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR)
+ #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET)
+@@ -120,23 +141,13 @@ SECTIONS
+ #undef VVIRT_OFFSET
+ #undef VVIRT
+
+- . = ALIGN(THREAD_SIZE); /* init_task */
+- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) {
+- *(.data.init_task)
+- }:data.init
+-
+- . = ALIGN(PAGE_SIZE);
+- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
+- *(.data.page_aligned)
+- }
+-
+ /* might get freed after init */
+ . = ALIGN(PAGE_SIZE);
+ __smp_alt_begin = .;
+ __smp_locks = .;
+ .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
+ *(.smp_locks)
+- }
++ } :data.init
+ __smp_locks_end = .;
+ . = ALIGN(PAGE_SIZE);
+ __smp_alt_end = .;
+@@ -212,16 +223,11 @@ SECTIONS
+ . = ALIGN(PAGE_SIZE);
+ __init_end = .;
+
+- . = ALIGN(PAGE_SIZE);
+- __nosave_begin = .;
+- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
+- . = ALIGN(PAGE_SIZE);
+- __nosave_end = .;
+-
+ __bss_start = .; /* BSS */
+ .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
+ *(.bss.page_aligned)
+ *(.bss)
++ . = ALIGN(2*1024*1024);
+ }
+ __bss_stop = .;
+
+diff -urNp linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c
+--- linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -236,13 +236,13 @@ static ctl_table kernel_table2[] = {
+ .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = vsyscall_sysctl_change },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static ctl_table kernel_root_table2[] = {
+ { .ctl_name = CTL_KERN, .procname = "kernel", .mode = 0555,
+ .child = kernel_table2 },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+ #endif
+
+diff -urNp linux-2.6.28.8/arch/x86/kvm/svm.c linux-2.6.28.8/arch/x86/kvm/svm.c
+--- linux-2.6.28.8/arch/x86/kvm/svm.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kvm/svm.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1505,7 +1505,19 @@ static void reload_tss(struct kvm_vcpu *
+ int cpu = raw_smp_processor_id();
+
+ struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ svm_data->tss_desc->type = 9; /* available 32/64-bit TSS */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ load_TR_desc();
+ }
+
+@@ -1912,7 +1924,7 @@ static int get_npt_level(void)
+ #endif
+ }
+
+-static struct kvm_x86_ops svm_x86_ops = {
++static const struct kvm_x86_ops svm_x86_ops = {
+ .cpu_has_kvm_support = has_svm,
+ .disabled_by_bios = is_disabled,
+ .hardware_setup = svm_hardware_setup,
+diff -urNp linux-2.6.28.8/arch/x86/kvm/vmx.c linux-2.6.28.8/arch/x86/kvm/vmx.c
+--- linux-2.6.28.8/arch/x86/kvm/vmx.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kvm/vmx.c 2009-02-21 09:37:48.000000000 -0500
+@@ -122,7 +122,7 @@ static struct vmcs_config {
+ u32 vmentry_ctrl;
+ } vmcs_config;
+
+-struct vmx_capability {
++static struct vmx_capability {
+ u32 ept;
+ u32 vpid;
+ } vmx_capability;
+@@ -491,9 +491,23 @@ static void reload_tss(void)
+ struct descriptor_table gdt;
+ struct desc_struct *descs;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ kvm_get_gdt(&gdt);
+ descs = (void *)gdt.base;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ load_TR_desc();
+ }
+
+@@ -2164,7 +2178,7 @@ static int vmx_vcpu_setup(struct vcpu_vm
+ vmcs_writel(HOST_IDTR_BASE, dt.base); /* 22.2.4 */
+
+ asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return));
+- vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */
++ vmcs_writel(HOST_RIP, ktla_ktva(kvm_vmx_return)); /* 22.2.5 */
+ vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0);
+ vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0);
+ vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0);
+@@ -3267,6 +3281,12 @@ static void vmx_vcpu_run(struct kvm_vcpu
+ "jmp .Lkvm_vmx_return \n\t"
+ ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t"
+ ".Lkvm_vmx_return: "
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++ "ljmp %[cs],$.Lkvm_vmx_return2\n\t"
++ ".Lkvm_vmx_return2: "
++#endif
++
+ /* Save guest registers, load host registers, keep flags */
+ "xchg %0, (%%"R"sp) \n\t"
+ "mov %%"R"ax, %c[rax](%0) \n\t"
+@@ -3313,6 +3333,11 @@ static void vmx_vcpu_run(struct kvm_vcpu
+ [r15]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R15])),
+ #endif
+ [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2))
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++ ,[cs]"i"(__KERNEL_CS)
++#endif
++
+ : "cc", "memory"
+ , R"bx", R"di", R"si"
+ #ifdef CONFIG_X86_64
+@@ -3331,7 +3356,7 @@ static void vmx_vcpu_run(struct kvm_vcpu
+ (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) &
+ (GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS)) == 0;
+
+- asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS));
++ asm("mov %0, %%ds; mov %0, %%es" : : "r"(__KERNEL_DS));
+ vmx->launched = 1;
+
+ intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+@@ -3455,7 +3480,7 @@ static int get_ept_level(void)
+ return VMX_EPT_DEFAULT_GAW + 1;
+ }
+
+-static struct kvm_x86_ops vmx_x86_ops = {
++static const struct kvm_x86_ops vmx_x86_ops = {
+ .cpu_has_kvm_support = cpu_has_kvm_support,
+ .disabled_by_bios = vmx_disabled_by_bios,
+ .hardware_setup = hardware_setup,
+diff -urNp linux-2.6.28.8/arch/x86/kvm/x86.c linux-2.6.28.8/arch/x86/kvm/x86.c
+--- linux-2.6.28.8/arch/x86/kvm/x86.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/kvm/x86.c 2009-02-21 09:37:48.000000000 -0500
+@@ -68,41 +68,41 @@ static u64 __read_mostly efer_reserved_b
+ static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
+ struct kvm_cpuid_entry2 __user *entries);
+
+-struct kvm_x86_ops *kvm_x86_ops;
++const struct kvm_x86_ops *kvm_x86_ops;
+ EXPORT_SYMBOL_GPL(kvm_x86_ops);
+
+ struct kvm_stats_debugfs_item debugfs_entries[] = {
+- { "pf_fixed", VCPU_STAT(pf_fixed) },
+- { "pf_guest", VCPU_STAT(pf_guest) },
+- { "tlb_flush", VCPU_STAT(tlb_flush) },
+- { "invlpg", VCPU_STAT(invlpg) },
+- { "exits", VCPU_STAT(exits) },
+- { "io_exits", VCPU_STAT(io_exits) },
+- { "mmio_exits", VCPU_STAT(mmio_exits) },
+- { "signal_exits", VCPU_STAT(signal_exits) },
+- { "irq_window", VCPU_STAT(irq_window_exits) },
+- { "nmi_window", VCPU_STAT(nmi_window_exits) },
+- { "halt_exits", VCPU_STAT(halt_exits) },
+- { "halt_wakeup", VCPU_STAT(halt_wakeup) },
+- { "hypercalls", VCPU_STAT(hypercalls) },
+- { "request_irq", VCPU_STAT(request_irq_exits) },
+- { "irq_exits", VCPU_STAT(irq_exits) },
+- { "host_state_reload", VCPU_STAT(host_state_reload) },
+- { "efer_reload", VCPU_STAT(efer_reload) },
+- { "fpu_reload", VCPU_STAT(fpu_reload) },
+- { "insn_emulation", VCPU_STAT(insn_emulation) },
+- { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) },
+- { "irq_injections", VCPU_STAT(irq_injections) },
+- { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) },
+- { "mmu_pte_write", VM_STAT(mmu_pte_write) },
+- { "mmu_pte_updated", VM_STAT(mmu_pte_updated) },
+- { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) },
+- { "mmu_flooded", VM_STAT(mmu_flooded) },
+- { "mmu_recycled", VM_STAT(mmu_recycled) },
+- { "mmu_cache_miss", VM_STAT(mmu_cache_miss) },
+- { "mmu_unsync", VM_STAT(mmu_unsync) },
+- { "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
+- { "largepages", VM_STAT(lpages) },
++ { "pf_fixed", VCPU_STAT(pf_fixed), NULL },
++ { "pf_guest", VCPU_STAT(pf_guest), NULL },
++ { "tlb_flush", VCPU_STAT(tlb_flush), NULL },
++ { "invlpg", VCPU_STAT(invlpg), NULL },
++ { "exits", VCPU_STAT(exits), NULL },
++ { "io_exits", VCPU_STAT(io_exits), NULL },
++ { "mmio_exits", VCPU_STAT(mmio_exits), NULL },
++ { "signal_exits", VCPU_STAT(signal_exits), NULL },
++ { "irq_window", VCPU_STAT(irq_window_exits), NULL },
++ { "nmi_window", VCPU_STAT(nmi_window_exits), NULL },
++ { "halt_exits", VCPU_STAT(halt_exits), NULL },
++ { "halt_wakeup", VCPU_STAT(halt_wakeup), NULL },
++ { "hypercalls", VCPU_STAT(hypercalls), NULL },
++ { "request_irq", VCPU_STAT(request_irq_exits), NULL },
++ { "irq_exits", VCPU_STAT(irq_exits), NULL },
++ { "host_state_reload", VCPU_STAT(host_state_reload), NULL },
++ { "efer_reload", VCPU_STAT(efer_reload), NULL },
++ { "fpu_reload", VCPU_STAT(fpu_reload), NULL },
++ { "insn_emulation", VCPU_STAT(insn_emulation), NULL },
++ { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail), NULL },
++ { "irq_injections", VCPU_STAT(irq_injections), NULL },
++ { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped), NULL },
++ { "mmu_pte_write", VM_STAT(mmu_pte_write), NULL },
++ { "mmu_pte_updated", VM_STAT(mmu_pte_updated), NULL },
++ { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped), NULL },
++ { "mmu_flooded", VM_STAT(mmu_flooded), NULL },
++ { "mmu_recycled", VM_STAT(mmu_recycled), NULL },
++ { "mmu_cache_miss", VM_STAT(mmu_cache_miss), NULL },
++ { "mmu_unsync", VM_STAT(mmu_unsync), NULL },
++ { "remote_tlb_flush", VM_STAT(remote_tlb_flush), NULL },
++ { "largepages", VM_STAT(lpages), NULL },
+ { NULL }
+ };
+
+@@ -1304,7 +1304,7 @@ static int kvm_vcpu_ioctl_set_lapic(stru
+ static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
+ struct kvm_interrupt *irq)
+ {
+- if (irq->irq < 0 || irq->irq >= 256)
++ if (irq->irq >= 256)
+ return -EINVAL;
+ if (irqchip_in_kernel(vcpu->kvm))
+ return -ENXIO;
+@@ -2509,10 +2509,10 @@ int kvm_emulate_pio_string(struct kvm_vc
+ }
+ EXPORT_SYMBOL_GPL(kvm_emulate_pio_string);
+
+-int kvm_arch_init(void *opaque)
++int kvm_arch_init(const void *opaque)
+ {
+ int r;
+- struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
++ const struct kvm_x86_ops *ops = (const struct kvm_x86_ops *)opaque;
+
+ if (kvm_x86_ops) {
+ printk(KERN_ERR "kvm: already loaded the other module\n");
+diff -urNp linux-2.6.28.8/arch/x86/lib/checksum_32.S linux-2.6.28.8/arch/x86/lib/checksum_32.S
+--- linux-2.6.28.8/arch/x86/lib/checksum_32.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/checksum_32.S 2009-02-21 09:37:48.000000000 -0500
+@@ -28,7 +28,8 @@
+ #include <linux/linkage.h>
+ #include <asm/dwarf2.h>
+ #include <asm/errno.h>
+-
++#include <asm/segment.h>
++
+ /*
+ * computes a partial checksum, e.g. for TCP/UDP fragments
+ */
+@@ -304,9 +305,22 @@ unsigned int csum_partial_copy_generic (
+
+ #define ARGBASE 16
+ #define FP 12
+-
+-ENTRY(csum_partial_copy_generic)
++
++ENTRY(csum_partial_copy_generic_to_user)
+ CFI_STARTPROC
++ pushl $(__USER_DS)
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %es
++ CFI_ADJUST_CFA_OFFSET -4
++ jmp csum_partial_copy_generic
++
++ENTRY(csum_partial_copy_generic_from_user)
++ pushl $(__USER_DS)
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %ds
++ CFI_ADJUST_CFA_OFFSET -4
++
++ENTRY(csum_partial_copy_generic)
+ subl $4,%esp
+ CFI_ADJUST_CFA_OFFSET 4
+ pushl %edi
+@@ -331,7 +345,7 @@ ENTRY(csum_partial_copy_generic)
+ jmp 4f
+ SRC(1: movw (%esi), %bx )
+ addl $2, %esi
+-DST( movw %bx, (%edi) )
++DST( movw %bx, %es:(%edi) )
+ addl $2, %edi
+ addw %bx, %ax
+ adcl $0, %eax
+@@ -343,30 +357,30 @@ DST( movw %bx, (%edi) )
+ SRC(1: movl (%esi), %ebx )
+ SRC( movl 4(%esi), %edx )
+ adcl %ebx, %eax
+-DST( movl %ebx, (%edi) )
++DST( movl %ebx, %es:(%edi) )
+ adcl %edx, %eax
+-DST( movl %edx, 4(%edi) )
++DST( movl %edx, %es:4(%edi) )
+
+ SRC( movl 8(%esi), %ebx )
+ SRC( movl 12(%esi), %edx )
+ adcl %ebx, %eax
+-DST( movl %ebx, 8(%edi) )
++DST( movl %ebx, %es:8(%edi) )
+ adcl %edx, %eax
+-DST( movl %edx, 12(%edi) )
++DST( movl %edx, %es:12(%edi) )
+
+ SRC( movl 16(%esi), %ebx )
+ SRC( movl 20(%esi), %edx )
+ adcl %ebx, %eax
+-DST( movl %ebx, 16(%edi) )
++DST( movl %ebx, %es:16(%edi) )
+ adcl %edx, %eax
+-DST( movl %edx, 20(%edi) )
++DST( movl %edx, %es:20(%edi) )
+
+ SRC( movl 24(%esi), %ebx )
+ SRC( movl 28(%esi), %edx )
+ adcl %ebx, %eax
+-DST( movl %ebx, 24(%edi) )
++DST( movl %ebx, %es:24(%edi) )
+ adcl %edx, %eax
+-DST( movl %edx, 28(%edi) )
++DST( movl %edx, %es:28(%edi) )
+
+ lea 32(%esi), %esi
+ lea 32(%edi), %edi
+@@ -380,7 +394,7 @@ DST( movl %edx, 28(%edi) )
+ shrl $2, %edx # This clears CF
+ SRC(3: movl (%esi), %ebx )
+ adcl %ebx, %eax
+-DST( movl %ebx, (%edi) )
++DST( movl %ebx, %es:(%edi) )
+ lea 4(%esi), %esi
+ lea 4(%edi), %edi
+ dec %edx
+@@ -392,12 +406,12 @@ DST( movl %ebx, (%edi) )
+ jb 5f
+ SRC( movw (%esi), %cx )
+ leal 2(%esi), %esi
+-DST( movw %cx, (%edi) )
++DST( movw %cx, %es:(%edi) )
+ leal 2(%edi), %edi
+ je 6f
+ shll $16,%ecx
+ SRC(5: movb (%esi), %cl )
+-DST( movb %cl, (%edi) )
++DST( movb %cl, %es:(%edi) )
+ 6: addl %ecx, %eax
+ adcl $0, %eax
+ 7:
+@@ -408,7 +422,7 @@ DST( movb %cl, (%edi) )
+
+ 6001:
+ movl ARGBASE+20(%esp), %ebx # src_err_ptr
+- movl $-EFAULT, (%ebx)
++ movl $-EFAULT, %ss:(%ebx)
+
+ # zero the complete destination - computing the rest
+ # is too much work
+@@ -421,11 +435,19 @@ DST( movb %cl, (%edi) )
+
+ 6002:
+ movl ARGBASE+24(%esp), %ebx # dst_err_ptr
+- movl $-EFAULT,(%ebx)
++ movl $-EFAULT,%ss:(%ebx)
+ jmp 5000b
+
+ .previous
+
++ pushl %ss
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %ds
++ CFI_ADJUST_CFA_OFFSET -4
++ pushl %ss
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %es
++ CFI_ADJUST_CFA_OFFSET -4
+ popl %ebx
+ CFI_ADJUST_CFA_OFFSET -4
+ CFI_RESTORE ebx
+@@ -439,26 +461,41 @@ DST( movb %cl, (%edi) )
+ CFI_ADJUST_CFA_OFFSET -4
+ ret
+ CFI_ENDPROC
+-ENDPROC(csum_partial_copy_generic)
++ENDPROC(csum_partial_copy_generic_to_user)
+
+ #else
+
+ /* Version for PentiumII/PPro */
+
+ #define ROUND1(x) \
++ nop; nop; nop; \
+ SRC(movl x(%esi), %ebx ) ; \
+ addl %ebx, %eax ; \
+- DST(movl %ebx, x(%edi) ) ;
++ DST(movl %ebx, %es:x(%edi)) ;
+
+ #define ROUND(x) \
++ nop; nop; nop; \
+ SRC(movl x(%esi), %ebx ) ; \
+ adcl %ebx, %eax ; \
+- DST(movl %ebx, x(%edi) ) ;
++ DST(movl %ebx, %es:x(%edi)) ;
+
+ #define ARGBASE 12
+-
+-ENTRY(csum_partial_copy_generic)
++
++ENTRY(csum_partial_copy_generic_to_user)
+ CFI_STARTPROC
++ pushl $(__USER_DS)
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %es
++ CFI_ADJUST_CFA_OFFSET -4
++ jmp csum_partial_copy_generic
++
++ENTRY(csum_partial_copy_generic_from_user)
++ pushl $(__USER_DS)
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %ds
++ CFI_ADJUST_CFA_OFFSET -4
++
++ENTRY(csum_partial_copy_generic)
+ pushl %ebx
+ CFI_ADJUST_CFA_OFFSET 4
+ CFI_REL_OFFSET ebx, 0
+@@ -482,7 +519,7 @@ ENTRY(csum_partial_copy_generic)
+ subl %ebx, %edi
+ lea -1(%esi),%edx
+ andl $-32,%edx
+- lea 3f(%ebx,%ebx), %ebx
++ lea 3f(%ebx,%ebx,2), %ebx
+ testl %esi, %esi
+ jmp *%ebx
+ 1: addl $64,%esi
+@@ -503,19 +540,19 @@ ENTRY(csum_partial_copy_generic)
+ jb 5f
+ SRC( movw (%esi), %dx )
+ leal 2(%esi), %esi
+-DST( movw %dx, (%edi) )
++DST( movw %dx, %es:(%edi) )
+ leal 2(%edi), %edi
+ je 6f
+ shll $16,%edx
+ 5:
+ SRC( movb (%esi), %dl )
+-DST( movb %dl, (%edi) )
++DST( movb %dl, %es:(%edi) )
+ 6: addl %edx, %eax
+ adcl $0, %eax
+ 7:
+ .section .fixup, "ax"
+ 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr
+- movl $-EFAULT, (%ebx)
++ movl $-EFAULT, %ss:(%ebx)
+ # zero the complete destination (computing the rest is too much work)
+ movl ARGBASE+8(%esp),%edi # dst
+ movl ARGBASE+12(%esp),%ecx # len
+@@ -523,10 +560,18 @@ DST( movb %dl, (%edi) )
+ rep; stosb
+ jmp 7b
+ 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr
+- movl $-EFAULT, (%ebx)
++ movl $-EFAULT, %ss:(%ebx)
+ jmp 7b
+ .previous
+
++ pushl %ss
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %ds
++ CFI_ADJUST_CFA_OFFSET -4
++ pushl %ss
++ CFI_ADJUST_CFA_OFFSET 4
++ popl %es
++ CFI_ADJUST_CFA_OFFSET -4
+ popl %esi
+ CFI_ADJUST_CFA_OFFSET -4
+ CFI_RESTORE esi
+@@ -538,7 +583,7 @@ DST( movb %dl, (%edi) )
+ CFI_RESTORE ebx
+ ret
+ CFI_ENDPROC
+-ENDPROC(csum_partial_copy_generic)
++ENDPROC(csum_partial_copy_generic_to_user)
+
+ #undef ROUND
+ #undef ROUND1
+diff -urNp linux-2.6.28.8/arch/x86/lib/clear_page_64.S linux-2.6.28.8/arch/x86/lib/clear_page_64.S
+--- linux-2.6.28.8/arch/x86/lib/clear_page_64.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/clear_page_64.S 2009-02-21 09:37:48.000000000 -0500
+@@ -44,7 +44,7 @@ ENDPROC(clear_page)
+
+ #include <asm/cpufeature.h>
+
+- .section .altinstr_replacement,"ax"
++ .section .altinstr_replacement,"a"
+ 1: .byte 0xeb /* jmp <disp8> */
+ .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */
+ 2:
+diff -urNp linux-2.6.28.8/arch/x86/lib/copy_page_64.S linux-2.6.28.8/arch/x86/lib/copy_page_64.S
+--- linux-2.6.28.8/arch/x86/lib/copy_page_64.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/copy_page_64.S 2009-02-21 09:37:48.000000000 -0500
+@@ -104,7 +104,7 @@ ENDPROC(copy_page)
+
+ #include <asm/cpufeature.h>
+
+- .section .altinstr_replacement,"ax"
++ .section .altinstr_replacement,"a"
+ 1: .byte 0xeb /* jmp <disp8> */
+ .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */
+ 2:
+diff -urNp linux-2.6.28.8/arch/x86/lib/copy_user_64.S linux-2.6.28.8/arch/x86/lib/copy_user_64.S
+--- linux-2.6.28.8/arch/x86/lib/copy_user_64.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/copy_user_64.S 2009-02-21 09:37:48.000000000 -0500
+@@ -21,7 +21,7 @@
+ .byte 0xe9 /* 32bit jump */
+ .long \orig-1f /* by default jump to orig */
+ 1:
+- .section .altinstr_replacement,"ax"
++ .section .altinstr_replacement,"a"
+ 2: .byte 0xe9 /* near jump with 32bit immediate */
+ .long \alt-1b /* offset */ /* or alternatively to alt */
+ .previous
+@@ -106,6 +106,8 @@ ENDPROC(__copy_from_user_inatomic)
+ ENTRY(bad_from_user)
+ bad_from_user:
+ CFI_STARTPROC
++ testl %edx,%edx
++ js bad_to_user
+ movl %edx,%ecx
+ xorl %eax,%eax
+ rep
+diff -urNp linux-2.6.28.8/arch/x86/lib/getuser.S linux-2.6.28.8/arch/x86/lib/getuser.S
+--- linux-2.6.28.8/arch/x86/lib/getuser.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/getuser.S 2009-02-21 09:37:48.000000000 -0500
+@@ -33,6 +33,7 @@
+ #include <asm/asm-offsets.h>
+ #include <asm/thread_info.h>
+ #include <asm/asm.h>
++#include <asm/segment.h>
+
+ .text
+ ENTRY(__get_user_1)
+@@ -40,7 +41,19 @@ ENTRY(__get_user_1)
+ GET_THREAD_INFO(%_ASM_DX)
+ cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ jae bad_get_user
++
++#ifdef CONFIG_X86_32
++ pushl $(__USER_DS)
++ popl %ds
++#endif
++
+ 1: movzb (%_ASM_AX),%edx
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ pop %ds
++#endif
++
+ xor %eax,%eax
+ ret
+ CFI_ENDPROC
+@@ -53,7 +66,19 @@ ENTRY(__get_user_2)
+ GET_THREAD_INFO(%_ASM_DX)
+ cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ jae bad_get_user
++
++#ifdef CONFIG_X86_32
++ pushl $(__USER_DS)
++ popl %ds
++#endif
++
+ 2: movzwl -1(%_ASM_AX),%edx
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ pop %ds
++#endif
++
+ xor %eax,%eax
+ ret
+ CFI_ENDPROC
+@@ -66,7 +91,19 @@ ENTRY(__get_user_4)
+ GET_THREAD_INFO(%_ASM_DX)
+ cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ jae bad_get_user
++
++#ifdef CONFIG_X86_32
++ pushl $(__USER_DS)
++ popl %ds
++#endif
++
+ 3: mov -3(%_ASM_AX),%edx
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ pop %ds
++#endif
++
+ xor %eax,%eax
+ ret
+ CFI_ENDPROC
+@@ -89,6 +126,12 @@ ENDPROC(__get_user_8)
+
+ bad_get_user:
+ CFI_STARTPROC
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ pop %ds
++#endif
++
+ xor %edx,%edx
+ mov $(-EFAULT),%_ASM_AX
+ ret
+diff -urNp linux-2.6.28.8/arch/x86/lib/memcpy_64.S linux-2.6.28.8/arch/x86/lib/memcpy_64.S
+--- linux-2.6.28.8/arch/x86/lib/memcpy_64.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/memcpy_64.S 2009-02-21 09:37:48.000000000 -0500
+@@ -114,7 +114,7 @@ ENDPROC(__memcpy)
+ /* Some CPUs run faster using the string copy instructions.
+ It is also a lot simpler. Use this when possible */
+
+- .section .altinstr_replacement,"ax"
++ .section .altinstr_replacement,"a"
+ 1: .byte 0xeb /* jmp <disp8> */
+ .byte (memcpy_c - memcpy) - (2f - 1b) /* offset */
+ 2:
+diff -urNp linux-2.6.28.8/arch/x86/lib/memset_64.S linux-2.6.28.8/arch/x86/lib/memset_64.S
+--- linux-2.6.28.8/arch/x86/lib/memset_64.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/memset_64.S 2009-02-21 09:37:48.000000000 -0500
+@@ -118,7 +118,7 @@ ENDPROC(__memset)
+
+ #include <asm/cpufeature.h>
+
+- .section .altinstr_replacement,"ax"
++ .section .altinstr_replacement,"a"
+ 1: .byte 0xeb /* jmp <disp8> */
+ .byte (memset_c - memset) - (2f - 1b) /* offset */
+ 2:
+diff -urNp linux-2.6.28.8/arch/x86/lib/mmx_32.c linux-2.6.28.8/arch/x86/lib/mmx_32.c
+--- linux-2.6.28.8/arch/x86/lib/mmx_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/mmx_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *
+ {
+ void *p;
+ int i;
++ unsigned long cr0;
+
+ if (unlikely(in_interrupt()))
+ return __memcpy(to, from, len);
+@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *
+ kernel_fpu_begin();
+
+ __asm__ __volatile__ (
+- "1: prefetch (%0)\n" /* This set is 28 bytes */
+- " prefetch 64(%0)\n"
+- " prefetch 128(%0)\n"
+- " prefetch 192(%0)\n"
+- " prefetch 256(%0)\n"
++ "1: prefetch (%1)\n" /* This set is 28 bytes */
++ " prefetch 64(%1)\n"
++ " prefetch 128(%1)\n"
++ " prefetch 192(%1)\n"
++ " prefetch 256(%1)\n"
+ "2: \n"
+ ".section .fixup, \"ax\"\n"
+- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
++ "3: \n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %%cr0, %0\n"
++ " movl %0, %%eax\n"
++ " andl $0xFFFEFFFF, %%eax\n"
++ " movl %%eax, %%cr0\n"
++#endif
++
++ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %0, %%cr0\n"
++#endif
++
+ " jmp 2b\n"
+ ".previous\n"
+ _ASM_EXTABLE(1b, 3b)
+- : : "r" (from));
++ : "=&r" (cr0) : "r" (from) : "ax");
+
+ for ( ; i > 5; i--) {
+ __asm__ __volatile__ (
+- "1: prefetch 320(%0)\n"
+- "2: movq (%0), %%mm0\n"
+- " movq 8(%0), %%mm1\n"
+- " movq 16(%0), %%mm2\n"
+- " movq 24(%0), %%mm3\n"
+- " movq %%mm0, (%1)\n"
+- " movq %%mm1, 8(%1)\n"
+- " movq %%mm2, 16(%1)\n"
+- " movq %%mm3, 24(%1)\n"
+- " movq 32(%0), %%mm0\n"
+- " movq 40(%0), %%mm1\n"
+- " movq 48(%0), %%mm2\n"
+- " movq 56(%0), %%mm3\n"
+- " movq %%mm0, 32(%1)\n"
+- " movq %%mm1, 40(%1)\n"
+- " movq %%mm2, 48(%1)\n"
+- " movq %%mm3, 56(%1)\n"
++ "1: prefetch 320(%1)\n"
++ "2: movq (%1), %%mm0\n"
++ " movq 8(%1), %%mm1\n"
++ " movq 16(%1), %%mm2\n"
++ " movq 24(%1), %%mm3\n"
++ " movq %%mm0, (%2)\n"
++ " movq %%mm1, 8(%2)\n"
++ " movq %%mm2, 16(%2)\n"
++ " movq %%mm3, 24(%2)\n"
++ " movq 32(%1), %%mm0\n"
++ " movq 40(%1), %%mm1\n"
++ " movq 48(%1), %%mm2\n"
++ " movq 56(%1), %%mm3\n"
++ " movq %%mm0, 32(%2)\n"
++ " movq %%mm1, 40(%2)\n"
++ " movq %%mm2, 48(%2)\n"
++ " movq %%mm3, 56(%2)\n"
+ ".section .fixup, \"ax\"\n"
+- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
++ "3:\n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %%cr0, %0\n"
++ " movl %0, %%eax\n"
++ " andl $0xFFFEFFFF, %%eax\n"
++ " movl %%eax, %%cr0\n"
++#endif
++
++ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %0, %%cr0\n"
++#endif
++
+ " jmp 2b\n"
+ ".previous\n"
+ _ASM_EXTABLE(1b, 3b)
+- : : "r" (from), "r" (to) : "memory");
++ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
+
+ from += 64;
+ to += 64;
+@@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
+ static void fast_copy_page(void *to, void *from)
+ {
+ int i;
++ unsigned long cr0;
+
+ kernel_fpu_begin();
+
+@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, voi
+ * but that is for later. -AV
+ */
+ __asm__ __volatile__(
+- "1: prefetch (%0)\n"
+- " prefetch 64(%0)\n"
+- " prefetch 128(%0)\n"
+- " prefetch 192(%0)\n"
+- " prefetch 256(%0)\n"
++ "1: prefetch (%1)\n"
++ " prefetch 64(%1)\n"
++ " prefetch 128(%1)\n"
++ " prefetch 192(%1)\n"
++ " prefetch 256(%1)\n"
+ "2: \n"
+ ".section .fixup, \"ax\"\n"
+- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
++ "3: \n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %%cr0, %0\n"
++ " movl %0, %%eax\n"
++ " andl $0xFFFEFFFF, %%eax\n"
++ " movl %%eax, %%cr0\n"
++#endif
++
++ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %0, %%cr0\n"
++#endif
++
+ " jmp 2b\n"
+ ".previous\n"
+- _ASM_EXTABLE(1b, 3b) : : "r" (from));
++ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
+
+ for (i = 0; i < (4096-320)/64; i++) {
+ __asm__ __volatile__ (
+- "1: prefetch 320(%0)\n"
+- "2: movq (%0), %%mm0\n"
+- " movntq %%mm0, (%1)\n"
+- " movq 8(%0), %%mm1\n"
+- " movntq %%mm1, 8(%1)\n"
+- " movq 16(%0), %%mm2\n"
+- " movntq %%mm2, 16(%1)\n"
+- " movq 24(%0), %%mm3\n"
+- " movntq %%mm3, 24(%1)\n"
+- " movq 32(%0), %%mm4\n"
+- " movntq %%mm4, 32(%1)\n"
+- " movq 40(%0), %%mm5\n"
+- " movntq %%mm5, 40(%1)\n"
+- " movq 48(%0), %%mm6\n"
+- " movntq %%mm6, 48(%1)\n"
+- " movq 56(%0), %%mm7\n"
+- " movntq %%mm7, 56(%1)\n"
++ "1: prefetch 320(%1)\n"
++ "2: movq (%1), %%mm0\n"
++ " movntq %%mm0, (%2)\n"
++ " movq 8(%1), %%mm1\n"
++ " movntq %%mm1, 8(%2)\n"
++ " movq 16(%1), %%mm2\n"
++ " movntq %%mm2, 16(%2)\n"
++ " movq 24(%1), %%mm3\n"
++ " movntq %%mm3, 24(%2)\n"
++ " movq 32(%1), %%mm4\n"
++ " movntq %%mm4, 32(%2)\n"
++ " movq 40(%1), %%mm5\n"
++ " movntq %%mm5, 40(%2)\n"
++ " movq 48(%1), %%mm6\n"
++ " movntq %%mm6, 48(%2)\n"
++ " movq 56(%1), %%mm7\n"
++ " movntq %%mm7, 56(%2)\n"
+ ".section .fixup, \"ax\"\n"
+- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
++ "3:\n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %%cr0, %0\n"
++ " movl %0, %%eax\n"
++ " andl $0xFFFEFFFF, %%eax\n"
++ " movl %%eax, %%cr0\n"
++#endif
++
++ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %0, %%cr0\n"
++#endif
++
+ " jmp 2b\n"
+ ".previous\n"
+- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
++ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
+
+ from += 64;
+ to += 64;
+@@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
+ static void fast_copy_page(void *to, void *from)
+ {
+ int i;
++ unsigned long cr0;
+
+ kernel_fpu_begin();
+
+ __asm__ __volatile__ (
+- "1: prefetch (%0)\n"
+- " prefetch 64(%0)\n"
+- " prefetch 128(%0)\n"
+- " prefetch 192(%0)\n"
+- " prefetch 256(%0)\n"
++ "1: prefetch (%1)\n"
++ " prefetch 64(%1)\n"
++ " prefetch 128(%1)\n"
++ " prefetch 192(%1)\n"
++ " prefetch 256(%1)\n"
+ "2: \n"
+ ".section .fixup, \"ax\"\n"
+- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
++ "3: \n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %%cr0, %0\n"
++ " movl %0, %%eax\n"
++ " andl $0xFFFEFFFF, %%eax\n"
++ " movl %%eax, %%cr0\n"
++#endif
++
++ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %0, %%cr0\n"
++#endif
++
+ " jmp 2b\n"
+ ".previous\n"
+- _ASM_EXTABLE(1b, 3b) : : "r" (from));
++ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
+
+ for (i = 0; i < 4096/64; i++) {
+ __asm__ __volatile__ (
+- "1: prefetch 320(%0)\n"
+- "2: movq (%0), %%mm0\n"
+- " movq 8(%0), %%mm1\n"
+- " movq 16(%0), %%mm2\n"
+- " movq 24(%0), %%mm3\n"
+- " movq %%mm0, (%1)\n"
+- " movq %%mm1, 8(%1)\n"
+- " movq %%mm2, 16(%1)\n"
+- " movq %%mm3, 24(%1)\n"
+- " movq 32(%0), %%mm0\n"
+- " movq 40(%0), %%mm1\n"
+- " movq 48(%0), %%mm2\n"
+- " movq 56(%0), %%mm3\n"
+- " movq %%mm0, 32(%1)\n"
+- " movq %%mm1, 40(%1)\n"
+- " movq %%mm2, 48(%1)\n"
+- " movq %%mm3, 56(%1)\n"
++ "1: prefetch 320(%1)\n"
++ "2: movq (%1), %%mm0\n"
++ " movq 8(%1), %%mm1\n"
++ " movq 16(%1), %%mm2\n"
++ " movq 24(%1), %%mm3\n"
++ " movq %%mm0, (%2)\n"
++ " movq %%mm1, 8(%2)\n"
++ " movq %%mm2, 16(%2)\n"
++ " movq %%mm3, 24(%2)\n"
++ " movq 32(%1), %%mm0\n"
++ " movq 40(%1), %%mm1\n"
++ " movq 48(%1), %%mm2\n"
++ " movq 56(%1), %%mm3\n"
++ " movq %%mm0, 32(%2)\n"
++ " movq %%mm1, 40(%2)\n"
++ " movq %%mm2, 48(%2)\n"
++ " movq %%mm3, 56(%2)\n"
+ ".section .fixup, \"ax\"\n"
+- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
++ "3:\n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %%cr0, %0\n"
++ " movl %0, %%eax\n"
++ " andl $0xFFFEFFFF, %%eax\n"
++ " movl %%eax, %%cr0\n"
++#endif
++
++ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++ " movl %0, %%cr0\n"
++#endif
++
+ " jmp 2b\n"
+ ".previous\n"
+ _ASM_EXTABLE(1b, 3b)
+- : : "r" (from), "r" (to) : "memory");
++ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
+
+ from += 64;
+ to += 64;
+diff -urNp linux-2.6.28.8/arch/x86/lib/putuser.S linux-2.6.28.8/arch/x86/lib/putuser.S
+--- linux-2.6.28.8/arch/x86/lib/putuser.S 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/putuser.S 2009-02-21 09:37:48.000000000 -0500
+@@ -15,6 +15,7 @@
+ #include <asm/thread_info.h>
+ #include <asm/errno.h>
+ #include <asm/asm.h>
++#include <asm/segment.h>
+
+
+ /*
+@@ -39,7 +40,19 @@ ENTRY(__put_user_1)
+ ENTER
+ cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
+ jae bad_put_user
++
++#ifdef CONFIG_X86_32
++ pushl $(__USER_DS)
++ popl %ds
++#endif
++
+ 1: movb %al,(%_ASM_CX)
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ popl %ds
++#endif
++
+ xor %eax,%eax
+ EXIT
+ ENDPROC(__put_user_1)
+@@ -50,7 +63,19 @@ ENTRY(__put_user_2)
+ sub $1,%_ASM_BX
+ cmp %_ASM_BX,%_ASM_CX
+ jae bad_put_user
++
++#ifdef CONFIG_X86_32
++ pushl $(__USER_DS)
++ popl %ds
++#endif
++
+ 2: movw %ax,(%_ASM_CX)
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ popl %ds
++#endif
++
+ xor %eax,%eax
+ EXIT
+ ENDPROC(__put_user_2)
+@@ -61,7 +86,19 @@ ENTRY(__put_user_4)
+ sub $3,%_ASM_BX
+ cmp %_ASM_BX,%_ASM_CX
+ jae bad_put_user
++
++#ifdef CONFIG_X86_32
++ pushl $(__USER_DS)
++ popl %ds
++#endif
++
+ 3: movl %eax,(%_ASM_CX)
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ popl %ds
++#endif
++
+ xor %eax,%eax
+ EXIT
+ ENDPROC(__put_user_4)
+@@ -72,16 +109,34 @@ ENTRY(__put_user_8)
+ sub $7,%_ASM_BX
+ cmp %_ASM_BX,%_ASM_CX
+ jae bad_put_user
++
++#ifdef CONFIG_X86_32
++ pushl $(__USER_DS)
++ popl %ds
++#endif
++
+ 4: mov %_ASM_AX,(%_ASM_CX)
+ #ifdef CONFIG_X86_32
+ 5: movl %edx,4(%_ASM_CX)
+ #endif
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ popl %ds
++#endif
++
+ xor %eax,%eax
+ EXIT
+ ENDPROC(__put_user_8)
+
+ bad_put_user:
+ CFI_STARTPROC
++
++#ifdef CONFIG_X86_32
++ pushl %ss
++ popl %ds
++#endif
++
+ movl $-EFAULT,%eax
+ EXIT
+ END(bad_put_user)
+diff -urNp linux-2.6.28.8/arch/x86/lib/usercopy_32.c linux-2.6.28.8/arch/x86/lib/usercopy_32.c
+--- linux-2.6.28.8/arch/x86/lib/usercopy_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/lib/usercopy_32.c 2009-02-21 09:39:27.000000000 -0500
+@@ -36,31 +36,38 @@ static inline int __movsl_is_ok(unsigned
+ * Copy a null terminated string from userspace.
+ */
+
+-#define __do_strncpy_from_user(dst, src, count, res) \
+-do { \
+- int __d0, __d1, __d2; \
+- might_sleep(); \
+- __asm__ __volatile__( \
+- " testl %1,%1\n" \
+- " jz 2f\n" \
+- "0: lodsb\n" \
+- " stosb\n" \
+- " testb %%al,%%al\n" \
+- " jz 1f\n" \
+- " decl %1\n" \
+- " jnz 0b\n" \
+- "1: subl %1,%0\n" \
+- "2:\n" \
+- ".section .fixup,\"ax\"\n" \
+- "3: movl %5,%0\n" \
+- " jmp 2b\n" \
+- ".previous\n" \
+- _ASM_EXTABLE(0b,3b) \
+- : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \
+- "=&D" (__d2) \
+- : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
+- : "memory"); \
+-} while (0)
++static long __do_strncpy_from_user(char *dst, const char __user *src, long count)
++{
++ int __d0, __d1, __d2;
++ long res = -EFAULT;
++
++ might_sleep();
++ __asm__ __volatile__(
++ " movw %w10,%%ds\n"
++ " testl %1,%1\n"
++ " jz 2f\n"
++ "0: lodsb\n"
++ " stosb\n"
++ " testb %%al,%%al\n"
++ " jz 1f\n"
++ " decl %1\n"
++ " jnz 0b\n"
++ "1: subl %1,%0\n"
++ "2:\n"
++ " pushl %%ss\n"
++ " popl %%ds\n"
++ ".section .fixup,\"ax\"\n"
++ "3: movl %5,%0\n"
++ " jmp 2b\n"
++ ".previous\n"
++ _ASM_EXTABLE(0b,3b)
++ : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1),
++ "=&D" (__d2)
++ : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst),
++ "r"(__USER_DS)
++ : "memory");
++ return res;
++}
+
+ /**
+ * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
+@@ -85,9 +92,7 @@ do { \
+ long
+ __strncpy_from_user(char *dst, const char __user *src, long count)
+ {
+- long res;
+- __do_strncpy_from_user(dst, src, count, res);
+- return res;
++ return __do_strncpy_from_user(dst, src, count);
+ }
+ EXPORT_SYMBOL(__strncpy_from_user);
+
+@@ -114,7 +119,7 @@ strncpy_from_user(char *dst, const char
+ {
+ long res = -EFAULT;
+ if (access_ok(VERIFY_READ, src, 1))
+- __do_strncpy_from_user(dst, src, count, res);
++ res = __do_strncpy_from_user(dst, src, count);
+ return res;
+ }
+ EXPORT_SYMBOL(strncpy_from_user);
+@@ -123,24 +128,30 @@ EXPORT_SYMBOL(strncpy_from_user);
+ * Zero Userspace
+ */
+
+-#define __do_clear_user(addr,size) \
+-do { \
+- int __d0; \
+- might_sleep(); \
+- __asm__ __volatile__( \
+- "0: rep; stosl\n" \
+- " movl %2,%0\n" \
+- "1: rep; stosb\n" \
+- "2:\n" \
+- ".section .fixup,\"ax\"\n" \
+- "3: lea 0(%2,%0,4),%0\n" \
+- " jmp 2b\n" \
+- ".previous\n" \
+- _ASM_EXTABLE(0b,3b) \
+- _ASM_EXTABLE(1b,2b) \
+- : "=&c"(size), "=&D" (__d0) \
+- : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0)); \
+-} while (0)
++static unsigned long __do_clear_user(void __user *addr, unsigned long size)
++{
++ int __d0;
++
++ might_sleep();
++ __asm__ __volatile__(
++ " movw %w6,%%es\n"
++ "0: rep; stosl\n"
++ " movl %2,%0\n"
++ "1: rep; stosb\n"
++ "2:\n"
++ " pushl %%ss\n"
++ " popl %%es\n"
++ ".section .fixup,\"ax\"\n"
++ "3: lea 0(%2,%0,4),%0\n"
++ " jmp 2b\n"
++ ".previous\n"
++ _ASM_EXTABLE(0b,3b)
++ _ASM_EXTABLE(1b,2b)
++ : "=&c"(size), "=&D" (__d0)
++ : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0),
++ "r"(__USER_DS));
++ return size;
++}
+
+ /**
+ * clear_user: - Zero a block of memory in user space.
+@@ -157,7 +168,7 @@ clear_user(void __user *to, unsigned lon
+ {
+ might_sleep();
+ if (access_ok(VERIFY_WRITE, to, n))
+- __do_clear_user(to, n);
++ n = __do_clear_user(to, n);
+ return n;
+ }
+ EXPORT_SYMBOL(clear_user);
+@@ -176,8 +187,7 @@ EXPORT_SYMBOL(clear_user);
+ unsigned long
+ __clear_user(void __user *to, unsigned long n)
+ {
+- __do_clear_user(to, n);
+- return n;
++ return __do_clear_user(to, n);
+ }
+ EXPORT_SYMBOL(__clear_user);
+
+@@ -200,14 +210,17 @@ long strnlen_user(const char __user *s,
+ might_sleep();
+
+ __asm__ __volatile__(
++ " movw %w8,%%es\n"
+ " testl %0, %0\n"
+ " jz 3f\n"
+- " andl %0,%%ecx\n"
++ " movl %0,%%ecx\n"
+ "0: repne; scasb\n"
+ " setne %%al\n"
+ " subl %%ecx,%0\n"
+ " addl %0,%%eax\n"
+ "1:\n"
++ " pushl %%ss\n"
++ " popl %%es\n"
+ ".section .fixup,\"ax\"\n"
+ "2: xorl %%eax,%%eax\n"
+ " jmp 1b\n"
+@@ -219,7 +232,7 @@ long strnlen_user(const char __user *s,
+ " .long 0b,2b\n"
+ ".previous"
+ :"=&r" (n), "=&D" (s), "=&a" (res), "=&c" (tmp)
+- :"0" (n), "1" (s), "2" (0), "3" (mask)
++ :"0" (n), "1" (s), "2" (0), "3" (mask), "r" (__USER_DS)
+ :"cc");
+ return res & mask;
+ }
+@@ -227,10 +240,11 @@ EXPORT_SYMBOL(strnlen_user);
+
+ #ifdef CONFIG_X86_INTEL_USERCOPY
+ static unsigned long
+-__copy_user_intel(void __user *to, const void *from, unsigned long size)
++__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
+ {
+ int d0, d1;
+ __asm__ __volatile__(
++ " movw %w6, %%es\n"
+ " .align 2,0x90\n"
+ "1: movl 32(%4), %%eax\n"
+ " cmpl $67, %0\n"
+@@ -239,36 +253,36 @@ __copy_user_intel(void __user *to, const
+ " .align 2,0x90\n"
+ "3: movl 0(%4), %%eax\n"
+ "4: movl 4(%4), %%edx\n"
+- "5: movl %%eax, 0(%3)\n"
+- "6: movl %%edx, 4(%3)\n"
++ "5: movl %%eax, %%es:0(%3)\n"
++ "6: movl %%edx, %%es:4(%3)\n"
+ "7: movl 8(%4), %%eax\n"
+ "8: movl 12(%4),%%edx\n"
+- "9: movl %%eax, 8(%3)\n"
+- "10: movl %%edx, 12(%3)\n"
++ "9: movl %%eax, %%es:8(%3)\n"
++ "10: movl %%edx, %%es:12(%3)\n"
+ "11: movl 16(%4), %%eax\n"
+ "12: movl 20(%4), %%edx\n"
+- "13: movl %%eax, 16(%3)\n"
+- "14: movl %%edx, 20(%3)\n"
++ "13: movl %%eax, %%es:16(%3)\n"
++ "14: movl %%edx, %%es:20(%3)\n"
+ "15: movl 24(%4), %%eax\n"
+ "16: movl 28(%4), %%edx\n"
+- "17: movl %%eax, 24(%3)\n"
+- "18: movl %%edx, 28(%3)\n"
++ "17: movl %%eax, %%es:24(%3)\n"
++ "18: movl %%edx, %%es:28(%3)\n"
+ "19: movl 32(%4), %%eax\n"
+ "20: movl 36(%4), %%edx\n"
+- "21: movl %%eax, 32(%3)\n"
+- "22: movl %%edx, 36(%3)\n"
++ "21: movl %%eax, %%es:32(%3)\n"
++ "22: movl %%edx, %%es:36(%3)\n"
+ "23: movl 40(%4), %%eax\n"
+ "24: movl 44(%4), %%edx\n"
+- "25: movl %%eax, 40(%3)\n"
+- "26: movl %%edx, 44(%3)\n"
++ "25: movl %%eax, %%es:40(%3)\n"
++ "26: movl %%edx, %%es:44(%3)\n"
+ "27: movl 48(%4), %%eax\n"
+ "28: movl 52(%4), %%edx\n"
+- "29: movl %%eax, 48(%3)\n"
+- "30: movl %%edx, 52(%3)\n"
++ "29: movl %%eax, %%es:48(%3)\n"
++ "30: movl %%edx, %%es:52(%3)\n"
+ "31: movl 56(%4), %%eax\n"
+ "32: movl 60(%4), %%edx\n"
+- "33: movl %%eax, 56(%3)\n"
+- "34: movl %%edx, 60(%3)\n"
++ "33: movl %%eax, %%es:56(%3)\n"
++ "34: movl %%edx, %%es:60(%3)\n"
+ " addl $-64, %0\n"
+ " addl $64, %4\n"
+ " addl $64, %3\n"
+@@ -282,6 +296,8 @@ __copy_user_intel(void __user *to, const
+ "36: movl %%eax, %0\n"
+ "37: rep; movsb\n"
+ "100:\n"
++ " pushl %%ss\n"
++ " popl %%es\n"
+ ".section .fixup,\"ax\"\n"
+ "101: lea 0(%%eax,%0,4),%0\n"
+ " jmp 100b\n"
+@@ -328,7 +344,117 @@ __copy_user_intel(void __user *to, const
+ " .long 99b,101b\n"
+ ".previous"
+ : "=&c"(size), "=&D" (d0), "=&S" (d1)
+- : "1"(to), "2"(from), "0"(size)
++ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
++ : "eax", "edx", "memory");
++ return size;
++}
++
++static unsigned long
++__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
++{
++ int d0, d1;
++ __asm__ __volatile__(
++ " movw %w6, %%ds\n"
++ " .align 2,0x90\n"
++ "1: movl 32(%4), %%eax\n"
++ " cmpl $67, %0\n"
++ " jbe 3f\n"
++ "2: movl 64(%4), %%eax\n"
++ " .align 2,0x90\n"
++ "3: movl 0(%4), %%eax\n"
++ "4: movl 4(%4), %%edx\n"
++ "5: movl %%eax, %%es:0(%3)\n"
++ "6: movl %%edx, %%es:4(%3)\n"
++ "7: movl 8(%4), %%eax\n"
++ "8: movl 12(%4),%%edx\n"
++ "9: movl %%eax, %%es:8(%3)\n"
++ "10: movl %%edx, %%es:12(%3)\n"
++ "11: movl 16(%4), %%eax\n"
++ "12: movl 20(%4), %%edx\n"
++ "13: movl %%eax, %%es:16(%3)\n"
++ "14: movl %%edx, %%es:20(%3)\n"
++ "15: movl 24(%4), %%eax\n"
++ "16: movl 28(%4), %%edx\n"
++ "17: movl %%eax, %%es:24(%3)\n"
++ "18: movl %%edx, %%es:28(%3)\n"
++ "19: movl 32(%4), %%eax\n"
++ "20: movl 36(%4), %%edx\n"
++ "21: movl %%eax, %%es:32(%3)\n"
++ "22: movl %%edx, %%es:36(%3)\n"
++ "23: movl 40(%4), %%eax\n"
++ "24: movl 44(%4), %%edx\n"
++ "25: movl %%eax, %%es:40(%3)\n"
++ "26: movl %%edx, %%es:44(%3)\n"
++ "27: movl 48(%4), %%eax\n"
++ "28: movl 52(%4), %%edx\n"
++ "29: movl %%eax, %%es:48(%3)\n"
++ "30: movl %%edx, %%es:52(%3)\n"
++ "31: movl 56(%4), %%eax\n"
++ "32: movl 60(%4), %%edx\n"
++ "33: movl %%eax, %%es:56(%3)\n"
++ "34: movl %%edx, %%es:60(%3)\n"
++ " addl $-64, %0\n"
++ " addl $64, %4\n"
++ " addl $64, %3\n"
++ " cmpl $63, %0\n"
++ " ja 1b\n"
++ "35: movl %0, %%eax\n"
++ " shrl $2, %0\n"
++ " andl $3, %%eax\n"
++ " cld\n"
++ "99: rep; movsl\n"
++ "36: movl %%eax, %0\n"
++ "37: rep; movsb\n"
++ "100:\n"
++ " pushl %%ss\n"
++ " popl %%ds\n"
++ ".section .fixup,\"ax\"\n"
++ "101: lea 0(%%eax,%0,4),%0\n"
++ " jmp 100b\n"
++ ".previous\n"
++ ".section __ex_table,\"a\"\n"
++ " .align 4\n"
++ " .long 1b,100b\n"
++ " .long 2b,100b\n"
++ " .long 3b,100b\n"
++ " .long 4b,100b\n"
++ " .long 5b,100b\n"
++ " .long 6b,100b\n"
++ " .long 7b,100b\n"
++ " .long 8b,100b\n"
++ " .long 9b,100b\n"
++ " .long 10b,100b\n"
++ " .long 11b,100b\n"
++ " .long 12b,100b\n"
++ " .long 13b,100b\n"
++ " .long 14b,100b\n"
++ " .long 15b,100b\n"
++ " .long 16b,100b\n"
++ " .long 17b,100b\n"
++ " .long 18b,100b\n"
++ " .long 19b,100b\n"
++ " .long 20b,100b\n"
++ " .long 21b,100b\n"
++ " .long 22b,100b\n"
++ " .long 23b,100b\n"
++ " .long 24b,100b\n"
++ " .long 25b,100b\n"
++ " .long 26b,100b\n"
++ " .long 27b,100b\n"
++ " .long 28b,100b\n"
++ " .long 29b,100b\n"
++ " .long 30b,100b\n"
++ " .long 31b,100b\n"
++ " .long 32b,100b\n"
++ " .long 33b,100b\n"
++ " .long 34b,100b\n"
++ " .long 35b,100b\n"
++ " .long 36b,100b\n"
++ " .long 37b,100b\n"
++ " .long 99b,101b\n"
++ ".previous"
++ : "=&c"(size), "=&D" (d0), "=&S" (d1)
++ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
+ : "eax", "edx", "memory");
+ return size;
+ }
+@@ -338,6 +464,7 @@ __copy_user_zeroing_intel(void *to, cons
+ {
+ int d0, d1;
+ __asm__ __volatile__(
++ " movw %w6, %%ds\n"
+ " .align 2,0x90\n"
+ "0: movl 32(%4), %%eax\n"
+ " cmpl $67, %0\n"
+@@ -346,36 +473,36 @@ __copy_user_zeroing_intel(void *to, cons
+ " .align 2,0x90\n"
+ "2: movl 0(%4), %%eax\n"
+ "21: movl 4(%4), %%edx\n"
+- " movl %%eax, 0(%3)\n"
+- " movl %%edx, 4(%3)\n"
++ " movl %%eax, %%es:0(%3)\n"
++ " movl %%edx, %%es:4(%3)\n"
+ "3: movl 8(%4), %%eax\n"
+ "31: movl 12(%4),%%edx\n"
+- " movl %%eax, 8(%3)\n"
+- " movl %%edx, 12(%3)\n"
++ " movl %%eax, %%es:8(%3)\n"
++ " movl %%edx, %%es:12(%3)\n"
+ "4: movl 16(%4), %%eax\n"
+ "41: movl 20(%4), %%edx\n"
+- " movl %%eax, 16(%3)\n"
+- " movl %%edx, 20(%3)\n"
++ " movl %%eax, %%es:16(%3)\n"
++ " movl %%edx, %%es:20(%3)\n"
+ "10: movl 24(%4), %%eax\n"
+ "51: movl 28(%4), %%edx\n"
+- " movl %%eax, 24(%3)\n"
+- " movl %%edx, 28(%3)\n"
++ " movl %%eax, %%es:24(%3)\n"
++ " movl %%edx, %%es:28(%3)\n"
+ "11: movl 32(%4), %%eax\n"
+ "61: movl 36(%4), %%edx\n"
+- " movl %%eax, 32(%3)\n"
+- " movl %%edx, 36(%3)\n"
++ " movl %%eax, %%es:32(%3)\n"
++ " movl %%edx, %%es:36(%3)\n"
+ "12: movl 40(%4), %%eax\n"
+ "71: movl 44(%4), %%edx\n"
+- " movl %%eax, 40(%3)\n"
+- " movl %%edx, 44(%3)\n"
++ " movl %%eax, %%es:40(%3)\n"
++ " movl %%edx, %%es:44(%3)\n"
+ "13: movl 48(%4), %%eax\n"
+ "81: movl 52(%4), %%edx\n"
+- " movl %%eax, 48(%3)\n"
+- " movl %%edx, 52(%3)\n"
++ " movl %%eax, %%es:48(%3)\n"
++ " movl %%edx, %%es:52(%3)\n"
+ "14: movl 56(%4), %%eax\n"
+ "91: movl 60(%4), %%edx\n"
+- " movl %%eax, 56(%3)\n"
+- " movl %%edx, 60(%3)\n"
++ " movl %%eax, %%es:56(%3)\n"
++ " movl %%edx, %%es:60(%3)\n"
+ " addl $-64, %0\n"
+ " addl $64, %4\n"
+ " addl $64, %3\n"
+@@ -389,6 +516,8 @@ __copy_user_zeroing_intel(void *to, cons
+ " movl %%eax,%0\n"
+ "7: rep; movsb\n"
+ "8:\n"
++ " pushl %%ss\n"
++ " popl %%ds\n"
+ ".section .fixup,\"ax\"\n"
+ "9: lea 0(%%eax,%0,4),%0\n"
+ "16: pushl %0\n"
+@@ -423,7 +552,7 @@ __copy_user_zeroing_intel(void *to, cons
+ " .long 7b,16b\n"
+ ".previous"
+ : "=&c"(size), "=&D" (d0), "=&S" (d1)
+- : "1"(to), "2"(from), "0"(size)
++ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
+ : "eax", "edx", "memory");
+ return size;
+ }
+@@ -439,6 +568,7 @@ static unsigned long __copy_user_zeroing
+ int d0, d1;
+
+ __asm__ __volatile__(
++ " movw %w6, %%ds\n"
+ " .align 2,0x90\n"
+ "0: movl 32(%4), %%eax\n"
+ " cmpl $67, %0\n"
+@@ -447,36 +577,36 @@ static unsigned long __copy_user_zeroing
+ " .align 2,0x90\n"
+ "2: movl 0(%4), %%eax\n"
+ "21: movl 4(%4), %%edx\n"
+- " movnti %%eax, 0(%3)\n"
+- " movnti %%edx, 4(%3)\n"
++ " movnti %%eax, %%es:0(%3)\n"
++ " movnti %%edx, %%es:4(%3)\n"
+ "3: movl 8(%4), %%eax\n"
+ "31: movl 12(%4),%%edx\n"
+- " movnti %%eax, 8(%3)\n"
+- " movnti %%edx, 12(%3)\n"
++ " movnti %%eax, %%es:8(%3)\n"
++ " movnti %%edx, %%es:12(%3)\n"
+ "4: movl 16(%4), %%eax\n"
+ "41: movl 20(%4), %%edx\n"
+- " movnti %%eax, 16(%3)\n"
+- " movnti %%edx, 20(%3)\n"
++ " movnti %%eax, %%es:16(%3)\n"
++ " movnti %%edx, %%es:20(%3)\n"
+ "10: movl 24(%4), %%eax\n"
+ "51: movl 28(%4), %%edx\n"
+- " movnti %%eax, 24(%3)\n"
+- " movnti %%edx, 28(%3)\n"
++ " movnti %%eax, %%es:24(%3)\n"
++ " movnti %%edx, %%es:28(%3)\n"
+ "11: movl 32(%4), %%eax\n"
+ "61: movl 36(%4), %%edx\n"
+- " movnti %%eax, 32(%3)\n"
+- " movnti %%edx, 36(%3)\n"
++ " movnti %%eax, %%es:32(%3)\n"
++ " movnti %%edx, %%es:36(%3)\n"
+ "12: movl 40(%4), %%eax\n"
+ "71: movl 44(%4), %%edx\n"
+- " movnti %%eax, 40(%3)\n"
+- " movnti %%edx, 44(%3)\n"
++ " movnti %%eax, %%es:40(%3)\n"
++ " movnti %%edx, %%es:44(%3)\n"
+ "13: movl 48(%4), %%eax\n"
+ "81: movl 52(%4), %%edx\n"
+- " movnti %%eax, 48(%3)\n"
+- " movnti %%edx, 52(%3)\n"
++ " movnti %%eax, %%es:48(%3)\n"
++ " movnti %%edx, %%es:52(%3)\n"
+ "14: movl 56(%4), %%eax\n"
+ "91: movl 60(%4), %%edx\n"
+- " movnti %%eax, 56(%3)\n"
+- " movnti %%edx, 60(%3)\n"
++ " movnti %%eax, %%es:56(%3)\n"
++ " movnti %%edx, %%es:60(%3)\n"
+ " addl $-64, %0\n"
+ " addl $64, %4\n"
+ " addl $64, %3\n"
+@@ -491,6 +621,8 @@ static unsigned long __copy_user_zeroing
+ " movl %%eax,%0\n"
+ "7: rep; movsb\n"
+ "8:\n"
++ " pushl %%ss\n"
++ " popl %%ds\n"
+ ".section .fixup,\"ax\"\n"
+ "9: lea 0(%%eax,%0,4),%0\n"
+ "16: pushl %0\n"
+@@ -525,7 +657,7 @@ static unsigned long __copy_user_zeroing
+ " .long 7b,16b\n"
+ ".previous"
+ : "=&c"(size), "=&D" (d0), "=&S" (d1)
+- : "1"(to), "2"(from), "0"(size)
++ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
+ : "eax", "edx", "memory");
+ return size;
+ }
+@@ -536,6 +668,7 @@ static unsigned long __copy_user_intel_n
+ int d0, d1;
+
+ __asm__ __volatile__(
++ " movw %w6, %%ds\n"
+ " .align 2,0x90\n"
+ "0: movl 32(%4), %%eax\n"
+ " cmpl $67, %0\n"
+@@ -544,36 +677,36 @@ static unsigned long __copy_user_intel_n
+ " .align 2,0x90\n"
+ "2: movl 0(%4), %%eax\n"
+ "21: movl 4(%4), %%edx\n"
+- " movnti %%eax, 0(%3)\n"
+- " movnti %%edx, 4(%3)\n"
++ " movnti %%eax, %%es:0(%3)\n"
++ " movnti %%edx, %%es:4(%3)\n"
+ "3: movl 8(%4), %%eax\n"
+ "31: movl 12(%4),%%edx\n"
+- " movnti %%eax, 8(%3)\n"
+- " movnti %%edx, 12(%3)\n"
++ " movnti %%eax, %%es:8(%3)\n"
++ " movnti %%edx, %%es:12(%3)\n"
+ "4: movl 16(%4), %%eax\n"
+ "41: movl 20(%4), %%edx\n"
+- " movnti %%eax, 16(%3)\n"
+- " movnti %%edx, 20(%3)\n"
++ " movnti %%eax, %%es:16(%3)\n"
++ " movnti %%edx, %%es:20(%3)\n"
+ "10: movl 24(%4), %%eax\n"
+ "51: movl 28(%4), %%edx\n"
+- " movnti %%eax, 24(%3)\n"
+- " movnti %%edx, 28(%3)\n"
++ " movnti %%eax, %%es:24(%3)\n"
++ " movnti %%edx, %%es:28(%3)\n"
+ "11: movl 32(%4), %%eax\n"
+ "61: movl 36(%4), %%edx\n"
+- " movnti %%eax, 32(%3)\n"
+- " movnti %%edx, 36(%3)\n"
++ " movnti %%eax, %%es:32(%3)\n"
++ " movnti %%edx, %%es:36(%3)\n"
+ "12: movl 40(%4), %%eax\n"
+ "71: movl 44(%4), %%edx\n"
+- " movnti %%eax, 40(%3)\n"
+- " movnti %%edx, 44(%3)\n"
++ " movnti %%eax, %%es:40(%3)\n"
++ " movnti %%edx, %%es:44(%3)\n"
+ "13: movl 48(%4), %%eax\n"
+ "81: movl 52(%4), %%edx\n"
+- " movnti %%eax, 48(%3)\n"
+- " movnti %%edx, 52(%3)\n"
++ " movnti %%eax, %%es:48(%3)\n"
++ " movnti %%edx, %%es:52(%3)\n"
+ "14: movl 56(%4), %%eax\n"
+ "91: movl 60(%4), %%edx\n"
+- " movnti %%eax, 56(%3)\n"
+- " movnti %%edx, 60(%3)\n"
++ " movnti %%eax, %%es:56(%3)\n"
++ " movnti %%edx, %%es:60(%3)\n"
+ " addl $-64, %0\n"
+ " addl $64, %4\n"
+ " addl $64, %3\n"
+@@ -588,6 +721,8 @@ static unsigned long __copy_user_intel_n
+ " movl %%eax,%0\n"
+ "7: rep; movsb\n"
+ "8:\n"
++ " pushl %%ss\n"
++ " popl %%ds\n"
+ ".section .fixup,\"ax\"\n"
+ "9: lea 0(%%eax,%0,4),%0\n"
+ "16: jmp 8b\n"
+@@ -616,7 +751,7 @@ static unsigned long __copy_user_intel_n
+ " .long 7b,16b\n"
+ ".previous"
+ : "=&c"(size), "=&D" (d0), "=&S" (d1)
+- : "1"(to), "2"(from), "0"(size)
++ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS)
+ : "eax", "edx", "memory");
+ return size;
+ }
+@@ -629,90 +764,146 @@ static unsigned long __copy_user_intel_n
+ */
+ unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
+ unsigned long size);
+-unsigned long __copy_user_intel(void __user *to, const void *from,
++unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
++ unsigned long size);
++unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
+ unsigned long size);
+ unsigned long __copy_user_zeroing_intel_nocache(void *to,
+ const void __user *from, unsigned long size);
+ #endif /* CONFIG_X86_INTEL_USERCOPY */
+
+ /* Generic arbitrary sized copy. */
+-#define __copy_user(to, from, size) \
+-do { \
+- int __d0, __d1, __d2; \
+- __asm__ __volatile__( \
+- " cmp $7,%0\n" \
+- " jbe 1f\n" \
+- " movl %1,%0\n" \
+- " negl %0\n" \
+- " andl $7,%0\n" \
+- " subl %0,%3\n" \
+- "4: rep; movsb\n" \
+- " movl %3,%0\n" \
+- " shrl $2,%0\n" \
+- " andl $3,%3\n" \
+- " .align 2,0x90\n" \
+- "0: rep; movsl\n" \
+- " movl %3,%0\n" \
+- "1: rep; movsb\n" \
+- "2:\n" \
+- ".section .fixup,\"ax\"\n" \
+- "5: addl %3,%0\n" \
+- " jmp 2b\n" \
+- "3: lea 0(%3,%0,4),%0\n" \
+- " jmp 2b\n" \
+- ".previous\n" \
+- ".section __ex_table,\"a\"\n" \
+- " .align 4\n" \
+- " .long 4b,5b\n" \
+- " .long 0b,3b\n" \
+- " .long 1b,2b\n" \
+- ".previous" \
+- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \
+- : "3"(size), "0"(size), "1"(to), "2"(from) \
+- : "memory"); \
+-} while (0)
+-
+-#define __copy_user_zeroing(to, from, size) \
+-do { \
+- int __d0, __d1, __d2; \
+- __asm__ __volatile__( \
+- " cmp $7,%0\n" \
+- " jbe 1f\n" \
+- " movl %1,%0\n" \
+- " negl %0\n" \
+- " andl $7,%0\n" \
+- " subl %0,%3\n" \
+- "4: rep; movsb\n" \
+- " movl %3,%0\n" \
+- " shrl $2,%0\n" \
+- " andl $3,%3\n" \
+- " .align 2,0x90\n" \
+- "0: rep; movsl\n" \
+- " movl %3,%0\n" \
+- "1: rep; movsb\n" \
+- "2:\n" \
+- ".section .fixup,\"ax\"\n" \
+- "5: addl %3,%0\n" \
+- " jmp 6f\n" \
+- "3: lea 0(%3,%0,4),%0\n" \
+- "6: pushl %0\n" \
+- " pushl %%eax\n" \
+- " xorl %%eax,%%eax\n" \
+- " rep; stosb\n" \
+- " popl %%eax\n" \
+- " popl %0\n" \
+- " jmp 2b\n" \
+- ".previous\n" \
+- ".section __ex_table,\"a\"\n" \
+- " .align 4\n" \
+- " .long 4b,5b\n" \
+- " .long 0b,3b\n" \
+- " .long 1b,6b\n" \
+- ".previous" \
+- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \
+- : "3"(size), "0"(size), "1"(to), "2"(from) \
+- : "memory"); \
+-} while (0)
++static unsigned long
++__generic_copy_to_user(void __user *to, const void *from, unsigned long size)
++{
++ int __d0, __d1, __d2;
++
++ __asm__ __volatile__(
++ " movw %w8,%%es\n"
++ " cmp $7,%0\n"
++ " jbe 1f\n"
++ " movl %1,%0\n"
++ " negl %0\n"
++ " andl $7,%0\n"
++ " subl %0,%3\n"
++ "4: rep; movsb\n"
++ " movl %3,%0\n"
++ " shrl $2,%0\n"
++ " andl $3,%3\n"
++ " .align 2,0x90\n"
++ "0: rep; movsl\n"
++ " movl %3,%0\n"
++ "1: rep; movsb\n"
++ "2:\n"
++ " pushl %%ss\n"
++ " popl %%es\n"
++ ".section .fixup,\"ax\"\n"
++ "5: addl %3,%0\n"
++ " jmp 2b\n"
++ "3: lea 0(%3,%0,4),%0\n"
++ " jmp 2b\n"
++ ".previous\n"
++ ".section __ex_table,\"a\"\n"
++ " .align 4\n"
++ " .long 4b,5b\n"
++ " .long 0b,3b\n"
++ " .long 1b,2b\n"
++ ".previous"
++ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2)
++ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS)
++ : "memory");
++ return size;
++}
++
++static unsigned long
++__generic_copy_from_user(void *to, const void __user *from, unsigned long size)
++{
++ int __d0, __d1, __d2;
++
++ __asm__ __volatile__(
++ " movw %w8,%%ds\n"
++ " cmp $7,%0\n"
++ " jbe 1f\n"
++ " movl %1,%0\n"
++ " negl %0\n"
++ " andl $7,%0\n"
++ " subl %0,%3\n"
++ "4: rep; movsb\n"
++ " movl %3,%0\n"
++ " shrl $2,%0\n"
++ " andl $3,%3\n"
++ " .align 2,0x90\n"
++ "0: rep; movsl\n"
++ " movl %3,%0\n"
++ "1: rep; movsb\n"
++ "2:\n"
++ " pushl %%ss\n"
++ " popl %%ds\n"
++ ".section .fixup,\"ax\"\n"
++ "5: addl %3,%0\n"
++ " jmp 2b\n"
++ "3: lea 0(%3,%0,4),%0\n"
++ " jmp 2b\n"
++ ".previous\n"
++ ".section __ex_table,\"a\"\n"
++ " .align 4\n"
++ " .long 4b,5b\n"
++ " .long 0b,3b\n"
++ " .long 1b,2b\n"
++ ".previous"
++ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2)
++ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS)
++ : "memory");
++ return size;
++}
++
++static unsigned long
++__copy_user_zeroing(void *to, const void __user *from, unsigned long size)
++{
++ int __d0, __d1, __d2;
++
++ __asm__ __volatile__(
++ " movw %w8,%%ds\n"
++ " cmp $7,%0\n"
++ " jbe 1f\n"
++ " movl %1,%0\n"
++ " negl %0\n"
++ " andl $7,%0\n"
++ " subl %0,%3\n"
++ "4: rep; movsb\n"
++ " movl %3,%0\n"
++ " shrl $2,%0\n"
++ " andl $3,%3\n"
++ " .align 2,0x90\n"
++ "0: rep; movsl\n"
++ " movl %3,%0\n"
++ "1: rep; movsb\n"
++ "2:\n"
++ " pushl %%ss\n"
++ " popl %%ds\n"
++ ".section .fixup,\"ax\"\n"
++ "5: addl %3,%0\n"
++ " jmp 6f\n"
++ "3: lea 0(%3,%0,4),%0\n"
++ "6: pushl %0\n"
++ " pushl %%eax\n"
++ " xorl %%eax,%%eax\n"
++ " rep; stosb\n"
++ " popl %%eax\n"
++ " popl %0\n"
++ " jmp 2b\n"
++ ".previous\n"
++ ".section __ex_table,\"a\"\n"
++ " .align 4\n"
++ " .long 4b,5b\n"
++ " .long 0b,3b\n"
++ " .long 1b,6b\n"
++ ".previous"
++ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2)
++ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS)
++ : "memory");
++ return size;
++}
+
+ unsigned long __copy_to_user_ll(void __user *to, const void *from,
+ unsigned long n)
+@@ -775,9 +966,9 @@ survive:
+ }
+ #endif
+ if (movsl_is_ok(to, from, n))
+- __copy_user(to, from, n);
++ n = __generic_copy_to_user(to, from, n);
+ else
+- n = __copy_user_intel(to, from, n);
++ n = __generic_copy_to_user_intel(to, from, n);
+ return n;
+ }
+ EXPORT_SYMBOL(__copy_to_user_ll);
+@@ -786,7 +977,7 @@ unsigned long __copy_from_user_ll(void *
+ unsigned long n)
+ {
+ if (movsl_is_ok(to, from, n))
+- __copy_user_zeroing(to, from, n);
++ n = __copy_user_zeroing(to, from, n);
+ else
+ n = __copy_user_zeroing_intel(to, from, n);
+ return n;
+@@ -797,10 +988,9 @@ unsigned long __copy_from_user_ll_nozero
+ unsigned long n)
+ {
+ if (movsl_is_ok(to, from, n))
+- __copy_user(to, from, n);
++ n = __generic_copy_from_user(to, from, n);
+ else
+- n = __copy_user_intel((void __user *)to,
+- (const void *)from, n);
++ n = __generic_copy_from_user_intel(to, from, n);
+ return n;
+ }
+ EXPORT_SYMBOL(__copy_from_user_ll_nozero);
+@@ -812,9 +1002,9 @@ unsigned long __copy_from_user_ll_nocach
+ if (n > 64 && cpu_has_xmm2)
+ n = __copy_user_zeroing_intel_nocache(to, from, n);
+ else
+- __copy_user_zeroing(to, from, n);
++ n = __copy_user_zeroing(to, from, n);
+ #else
+- __copy_user_zeroing(to, from, n);
++ n = __copy_user_zeroing(to, from, n);
+ #endif
+ return n;
+ }
+@@ -827,9 +1017,9 @@ unsigned long __copy_from_user_ll_nocach
+ if (n > 64 && cpu_has_xmm2)
+ n = __copy_user_intel_nocache(to, from, n);
+ else
+- __copy_user(to, from, n);
++ n = __generic_copy_from_user(to, from, n);
+ #else
+- __copy_user(to, from, n);
++ n = __generic_copy_from_user(to, from, n);
+ #endif
+ return n;
+ }
+@@ -878,8 +1068,35 @@ copy_from_user(void *to, const void __us
+ {
+ if (access_ok(VERIFY_READ, from, n))
+ n = __copy_from_user(to, from, n);
+- else
++ else if ((long)n > 0)
+ memset(to, 0, n);
+ return n;
+ }
+ EXPORT_SYMBOL(copy_from_user);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++void __set_fs(mm_segment_t x, int cpu)
++{
++ unsigned long limit = x.seg;
++ struct desc_struct d;
++
++ current_thread_info()->addr_limit = x;
++ if (likely(limit))
++ limit = (limit - 1UL) >> PAGE_SHIFT;
++ pack_descriptor(&d, 0UL, limit, 0xF3, 0xC);
++ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_DS, &d, DESCTYPE_S);
++}
++
++void set_fs(mm_segment_t x)
++{
++ __set_fs(x, get_cpu());
++ put_cpu_no_resched();
++}
++#else
++void set_fs(mm_segment_t x)
++{
++ current_thread_info()->addr_limit = x;
++}
++#endif
++
++EXPORT_SYMBOL(set_fs);
+diff -urNp linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c
+--- linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c 2009-02-21 09:37:48.000000000 -0500
+@@ -123,7 +123,7 @@ int __init voyager_memory_detect(int reg
+ __u8 cmos[4];
+ ClickMap_t *map;
+ unsigned long map_addr;
+- unsigned long old;
++ pte_t old;
+
+ if (region >= CLICK_ENTRIES) {
+ printk("Voyager: Illegal ClickMap region %d\n", region);
+@@ -138,7 +138,7 @@ int __init voyager_memory_detect(int reg
+
+ /* steal page 0 for this */
+ old = pg0[0];
+- pg0[0] = ((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT);
++ pg0[0] = __pte((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT);
+ local_flush_tlb();
+ /* now clear everything out but page 0 */
+ map = (ClickMap_t *) (map_addr & (~PAGE_MASK));
+diff -urNp linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c
+--- linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c 2009-02-21 09:37:48.000000000 -0500
+@@ -521,6 +521,10 @@ static void __init do_boot_cpu(__u8 cpu)
+ __u32 *hijack_vector;
+ __u32 start_phys_address = setup_trampoline();
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ /* There's a clever trick to this: The linux trampoline is
+ * compiled to begin at absolute location zero, so make the
+ * address zero but have the data segment selector compensate
+@@ -540,7 +544,17 @@ static void __init do_boot_cpu(__u8 cpu)
+
+ init_gdt(cpu);
+ per_cpu(current_task, cpu) = idle;
+- early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ early_gdt_descr.address = get_cpu_gdt_table(cpu);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ irq_ctx_init(cpu);
+
+ /* Note: Don't modify initial ss override */
+@@ -1154,7 +1168,7 @@ void smp_local_timer_interrupt(void)
+ per_cpu(prof_counter, cpu);
+ }
+
+- update_process_times(user_mode_vm(get_irq_regs()));
++ update_process_times(user_mode(get_irq_regs()));
+ }
+
+ if (((1 << cpu) & voyager_extended_vic_processors) == 0)
+diff -urNp linux-2.6.28.8/arch/x86/Makefile linux-2.6.28.8/arch/x86/Makefile
+--- linux-2.6.28.8/arch/x86/Makefile 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/Makefile 2009-02-21 09:37:48.000000000 -0500
+@@ -232,3 +232,12 @@ endef
+ CLEAN_FILES += arch/x86/boot/fdimage \
+ arch/x86/boot/image.iso \
+ arch/x86/boot/mtools.conf
++
++define OLD_LD
++
++*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
++*** Please upgrade your binutils to 2.18 or newer
++endef
++
++archprepare:
++ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
+diff -urNp linux-2.6.28.8/arch/x86/mm/extable.c linux-2.6.28.8/arch/x86/mm/extable.c
+--- linux-2.6.28.8/arch/x86/mm/extable.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/extable.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1,14 +1,62 @@
+ #include <linux/module.h>
+ #include <linux/spinlock.h>
++#include <linux/sort.h>
+ #include <asm/uaccess.h>
+
++/*
++ * The exception table needs to be sorted so that the binary
++ * search that we use to find entries in it works properly.
++ * This is used both for the kernel exception table and for
++ * the exception tables of modules that get loaded.
++ */
++static int cmp_ex(const void *a, const void *b)
++{
++ const struct exception_table_entry *x = a, *y = b;
++
++ /* avoid overflow */
++ if (x->insn > y->insn)
++ return 1;
++ if (x->insn < y->insn)
++ return -1;
++ return 0;
++}
++
++static void swap_ex(void *a, void *b, int size)
++{
++ struct exception_table_entry t, *x = a, *y = b;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
++ t = *x;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ *x = *y;
++ *y = t;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++}
++
++void sort_extable(struct exception_table_entry *start,
++ struct exception_table_entry *finish)
++{
++ sort(start, finish - start, sizeof(struct exception_table_entry),
++ cmp_ex, swap_ex);
++}
+
+ int fixup_exception(struct pt_regs *regs)
+ {
+ const struct exception_table_entry *fixup;
+
+ #ifdef CONFIG_PNPBIOS
+- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
++ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
+ extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
+ extern u32 pnp_bios_is_utter_crap;
+ pnp_bios_is_utter_crap = 1;
+diff -urNp linux-2.6.28.8/arch/x86/mm/fault.c linux-2.6.28.8/arch/x86/mm/fault.c
+--- linux-2.6.28.8/arch/x86/mm/fault.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/fault.c 2009-02-21 09:37:48.000000000 -0500
+@@ -26,6 +26,8 @@
+ #include <linux/kprobes.h>
+ #include <linux/uaccess.h>
+ #include <linux/kdebug.h>
++#include <linux/unistd.h>
++#include <linux/compiler.h>
+
+ #include <asm/system.h>
+ #include <asm/desc.h>
+@@ -67,7 +69,7 @@ static inline int notify_page_fault(stru
+ int ret = 0;
+
+ /* kprobe_running() needs smp_processor_id() */
+- if (!user_mode_vm(regs)) {
++ if (!user_mode(regs)) {
+ preempt_disable();
+ if (kprobe_running() && kprobe_fault_handler(regs, 14))
+ ret = 1;
+@@ -265,6 +267,30 @@ bad:
+ #endif
+ }
+
++#ifdef CONFIG_PAX_EMUTRAMP
++static int pax_handle_fetch_fault(struct pt_regs *regs);
++#endif
++
++#ifdef CONFIG_PAX_PAGEEXEC
++static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
++{
++ pgd_t *pgd;
++ pud_t *pud;
++ pmd_t *pmd;
++
++ pgd = pgd_offset(mm, address);
++ if (!pgd_present(*pgd))
++ return NULL;
++ pud = pud_offset(pgd, address);
++ if (!pud_present(*pud))
++ return NULL;
++ pmd = pmd_offset(pud, address);
++ if (!pmd_present(*pmd))
++ return NULL;
++ return pmd;
++}
++#endif
++
+ #ifdef CONFIG_X86_32
+ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
+ {
+@@ -351,7 +377,7 @@ static int is_errata93(struct pt_regs *r
+ static int is_errata100(struct pt_regs *regs, unsigned long address)
+ {
+ #ifdef CONFIG_X86_64
+- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) &&
++ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) &&
+ (address >> 32))
+ return 1;
+ #endif
+@@ -386,14 +412,31 @@ static void show_fault_oops(struct pt_re
+ #endif
+
+ #ifdef CONFIG_X86_PAE
+- if (error_code & PF_INSTR) {
++ if (nx_enabled && (error_code & PF_INSTR)) {
+ unsigned int level;
+ pte_t *pte = lookup_address(address, &level);
+
+ if (pte && pte_present(*pte) && !pte_exec(*pte))
+ printk(KERN_CRIT "kernel tried to execute "
+ "NX-protected page - exploit attempt? "
+- "(uid: %d)\n", current->uid);
++ "(uid: %d, task: %s, pid: %d)\n",
++ current->uid, current->comm, task_pid_nr(current));
++ }
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++#ifdef CONFIG_MODULES
++ if (init_mm.start_code <= address && address < (unsigned long)MODULES_END)
++#else
++ if (init_mm.start_code <= address && address < init_mm.end_code)
++#endif
++ {
++ if (current->signal->curr_ip)
++ printk(KERN_ERR "PAX: From %u.%u.%u.%u: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
++ NIPQUAD(current->signal->curr_ip), current->comm, task_pid_nr(current), current->uid, current->euid);
++ else
++ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
++ current->comm, task_pid_nr(current), current->uid, current->euid);
+ }
+ #endif
+
+@@ -585,20 +628,26 @@ void __kprobes do_page_fault(struct pt_r
+ struct task_struct *tsk;
+ struct mm_struct *mm;
+ struct vm_area_struct *vma;
+- unsigned long address;
+ int write, si_code;
+ int fault;
+ #ifdef CONFIG_X86_64
+ unsigned long flags;
+ #endif
+
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
++ pte_t *pte;
++ pmd_t *pmd;
++ spinlock_t *ptl;
++ unsigned char pte_mask;
++#endif
++
++ /* get the address */
++ const unsigned long address = read_cr2();
++
+ tsk = current;
+ mm = tsk->mm;
+ prefetchw(&mm->mmap_sem);
+
+- /* get the address */
+- address = read_cr2();
+-
+ si_code = SEGV_MAPERR;
+
+ if (unlikely(kmmio_fault(regs, address)))
+@@ -651,7 +700,7 @@ void __kprobes do_page_fault(struct pt_r
+ * User-mode registers count as a user access even for any
+ * potential system fault or CPU buglet.
+ */
+- if (user_mode_vm(regs)) {
++ if (user_mode(regs)) {
+ local_irq_enable();
+ error_code |= PF_USER;
+ } else if (regs->flags & X86_EFLAGS_IF)
+@@ -667,7 +716,7 @@ void __kprobes do_page_fault(struct pt_r
+ * atomic region then we must not take the fault.
+ */
+ if (unlikely(in_atomic() || !mm))
+- goto bad_area_nosemaphore;
++ goto bad_area_nopax;
+
+ again:
+ /*
+@@ -689,10 +738,104 @@ again:
+ if (!down_read_trylock(&mm->mmap_sem)) {
+ if ((error_code & PF_USER) == 0 &&
+ !search_exception_tables(regs->ip))
+- goto bad_area_nosemaphore;
++ goto bad_area_nopax;
+ down_read(&mm->mmap_sem);
+ }
+
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
++ if (nx_enabled || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
++ !(mm->pax_flags & MF_PAX_PAGEEXEC))
++ goto not_pax_fault;
++
++ /* PaX: it's our fault, let's handle it if we can */
++
++ /* PaX: take a look at read faults before acquiring any locks */
++ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
++ /* instruction fetch attempt from a protected page in user mode */
++ up_read(&mm->mmap_sem);
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ switch (pax_handle_fetch_fault(regs)) {
++ case 2:
++ return;
++ }
++#endif
++
++ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
++ do_group_exit(SIGKILL);
++ }
++
++ pmd = pax_get_pmd(mm, address);
++ if (unlikely(!pmd))
++ goto not_pax_fault;
++
++ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
++ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
++ pte_unmap_unlock(pte, ptl);
++ goto not_pax_fault;
++ }
++
++ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
++ /* write attempt to a protected page in user mode */
++ pte_unmap_unlock(pte, ptl);
++ goto not_pax_fault;
++ }
++
++#ifdef CONFIG_SMP
++ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask)))
++#else
++ if (likely(address > get_limit(regs->cs)))
++#endif
++ {
++ set_pte(pte, pte_mkread(*pte));
++ __flush_tlb_one(address);
++ pte_unmap_unlock(pte, ptl);
++ up_read(&mm->mmap_sem);
++ return;
++ }
++
++ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
++
++ /*
++ * PaX: fill DTLB with user rights and retry
++ */
++ __asm__ __volatile__ (
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++ "movw %w4,%%es\n"
++#endif
++ "orb %2,(%1)\n"
++#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
++/*
++ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
++ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
++ * page fault when examined during a TLB load attempt. this is true not only
++ * for PTEs holding a non-present entry but also present entries that will
++ * raise a page fault (such as those set up by PaX, or the copy-on-write
++ * mechanism). in effect it means that we do *not* need to flush the TLBs
++ * for our target pages since their PTEs are simply not in the TLBs at all.
++
++ * the best thing in omitting it is that we gain around 15-20% speed in the
++ * fast path of the page fault handler and can get rid of tracing since we
++ * can no longer flush unintended entries.
++ */
++ "invlpg (%0)\n"
++#endif
++ "testb $0,%%es:(%0)\n"
++ "xorb %3,(%1)\n"
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++ "pushl %%ss\n"
++ "popl %%es\n"
++#endif
++ :
++ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER), "r" (__USER_DS)
++ : "memory", "cc");
++ pte_unmap_unlock(pte, ptl);
++ up_read(&mm->mmap_sem);
++ return;
++
++not_pax_fault:
++#endif
++
+ vma = find_vma(mm, address);
+ if (!vma)
+ goto bad_area;
+@@ -700,16 +843,20 @@ again:
+ goto good_area;
+ if (!(vma->vm_flags & VM_GROWSDOWN))
+ goto bad_area;
+- if (error_code & PF_USER) {
+- /*
+- * Accessing the stack below %sp is always a bug.
+- * The large cushion allows instructions like enter
+- * and pusha to work. ("enter $65535,$31" pushes
+- * 32 pointers and then decrements %sp by 65535.)
+- */
+- if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp)
+- goto bad_area;
+- }
++ /*
++ * Accessing the stack below %sp is always a bug.
++ * The large cushion allows instructions like enter
++ * and pusha to work. ("enter $65535,$31" pushes
++ * 32 pointers and then decrements %sp by 65535.)
++ */
++ if (address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)
++ goto bad_area;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)
++ goto bad_area;
++#endif
++
+ if (expand_stack(vma, address))
+ goto bad_area;
+ /*
+@@ -719,6 +866,8 @@ again:
+ good_area:
+ si_code = SEGV_ACCERR;
+ write = 0;
++ if (nx_enabled && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
++ goto bad_area;
+ switch (error_code & (PF_PROT|PF_WRITE)) {
+ default: /* 3: write, present */
+ /* fall through */
+@@ -773,6 +922,54 @@ bad_area:
+ up_read(&mm->mmap_sem);
+
+ bad_area_nosemaphore:
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ if (mm && (error_code & PF_USER)) {
++ unsigned long ip = regs->ip;
++
++ if (v8086_mode(regs))
++ ip = ((regs->cs & 0xffff) << 4) + (regs->ip & 0xffff);
++
++ /*
++ * It's possible to have interrupts off here.
++ */
++ local_irq_enable();
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) &&
++ ((nx_enabled && (error_code & PF_INSTR)) || (!(error_code & (PF_PROT | PF_WRITE)) && regs->ip == address))) {
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ switch (pax_handle_fetch_fault(regs)) {
++ case 2:
++ return;
++ }
++#endif
++
++ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
++ do_group_exit(SIGKILL);
++ }
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && !(error_code & (PF_PROT | PF_WRITE)) && (regs->ip + SEGMEXEC_TASK_SIZE == address)) {
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ switch (pax_handle_fetch_fault(regs)) {
++ case 2:
++ return;
++ }
++#endif
++
++ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
++ do_group_exit(SIGKILL);
++ }
++#endif
++
++ }
++#endif
++
++bad_area_nopax:
+ /* User mode accesses just cause a SIGSEGV */
+ if (error_code & PF_USER) {
+ /*
+@@ -851,7 +1048,7 @@ no_context:
+ #ifdef CONFIG_X86_32
+ die("Oops", regs, error_code);
+ bust_spinlocks(0);
+- do_exit(SIGKILL);
++ do_group_exit(SIGKILL);
+ #else
+ if (__die("Oops", regs, error_code))
+ regs = NULL;
+@@ -944,3 +1141,174 @@ void vmalloc_sync_all(void)
+ }
+ #endif
+ }
++
++#ifdef CONFIG_PAX_EMUTRAMP
++static int pax_handle_fetch_fault_32(struct pt_regs *regs)
++{
++ int err;
++
++ do { /* PaX: gcc trampoline emulation #1 */
++ unsigned char mov1, mov2;
++ unsigned short jmp;
++ unsigned int addr1, addr2;
++
++#ifdef CONFIG_X86_64
++ if ((regs->ip + 11) >> 32)
++ break;
++#endif
++
++ err = get_user(mov1, (unsigned char __user *)regs->ip);
++ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
++ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
++ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
++ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
++
++ if (err)
++ break;
++
++ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
++ regs->cx = addr1;
++ regs->ax = addr2;
++ regs->ip = addr2;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: gcc trampoline emulation #2 */
++ unsigned char mov, jmp;
++ unsigned int addr1, addr2;
++
++#ifdef CONFIG_X86_64
++ if ((regs->ip + 9) >> 32)
++ break;
++#endif
++
++ err = get_user(mov, (unsigned char __user *)regs->ip);
++ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
++ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
++ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
++
++ if (err)
++ break;
++
++ if (mov == 0xB9 && jmp == 0xE9) {
++ regs->cx = addr1;
++ regs->ip = (unsigned int)(regs->ip + addr2 + 10);
++ return 2;
++ }
++ } while (0);
++
++ return 1; /* PaX in action */
++}
++
++#ifdef CONFIG_X86_64
++static int pax_handle_fetch_fault_64(struct pt_regs *regs)
++{
++ int err;
++
++ do { /* PaX: gcc trampoline emulation #1 */
++ unsigned short mov1, mov2, jmp1;
++ unsigned char jmp2;
++ unsigned int addr1;
++ unsigned long addr2;
++
++ err = get_user(mov1, (unsigned short __user *)regs->ip);
++ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
++ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
++ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
++ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
++ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
++
++ if (err)
++ break;
++
++ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
++ regs->r11 = addr1;
++ regs->r10 = addr2;
++ regs->ip = addr1;
++ return 2;
++ }
++ } while (0);
++
++ do { /* PaX: gcc trampoline emulation #2 */
++ unsigned short mov1, mov2, jmp1;
++ unsigned char jmp2;
++ unsigned long addr1, addr2;
++
++ err = get_user(mov1, (unsigned short __user *)regs->ip);
++ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
++ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
++ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
++ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
++ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
++
++ if (err)
++ break;
++
++ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
++ regs->r11 = addr1;
++ regs->r10 = addr2;
++ regs->ip = addr1;
++ return 2;
++ }
++ } while (0);
++
++ return 1; /* PaX in action */
++}
++#endif
++
++/*
++ * PaX: decide what to do with offenders (regs->ip = fault address)
++ *
++ * returns 1 when task should be killed
++ * 2 when gcc trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++ if (v8086_mode(regs))
++ return 1;
++
++ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
++ return 1;
++
++#ifdef CONFIG_X86_32
++ return pax_handle_fetch_fault_32(regs);
++#else
++ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
++ return pax_handle_fetch_fault_32(regs);
++ else
++ return pax_handle_fetch_fault_64(regs);
++#endif
++}
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++void pax_report_insns(void *pc, void *sp)
++{
++ long i;
++
++ printk(KERN_ERR "PAX: bytes at PC: ");
++ for (i = 0; i < 20; i++) {
++ unsigned char c;
++ if (get_user(c, (unsigned char __user *)pc+i))
++ printk(KERN_CONT "?? ");
++ else
++ printk(KERN_CONT "%02x ", c);
++ }
++ printk("\n");
++
++ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
++ for (i = -1; i < 80 / sizeof(long); i++) {
++ unsigned long c;
++ if (get_user(c, (unsigned long __user *)sp+i))
++#ifdef CONFIG_X86_32
++ printk(KERN_CONT "???????? ");
++#else
++ printk(KERN_CONT "???????????????? ");
++#endif
++ else
++ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
++ }
++ printk("\n");
++}
++#endif
+diff -urNp linux-2.6.28.8/arch/x86/mm/highmem_32.c linux-2.6.28.8/arch/x86/mm/highmem_32.c
+--- linux-2.6.28.8/arch/x86/mm/highmem_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/highmem_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -74,6 +74,10 @@ void *kmap_atomic_prot(struct page *page
+ enum fixed_addresses idx;
+ unsigned long vaddr;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
+ pagefault_disable();
+
+@@ -85,7 +89,17 @@ void *kmap_atomic_prot(struct page *page
+ idx = type + KM_TYPE_NR*smp_processor_id();
+ vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+ BUG_ON(!pte_none(*(kmap_pte-idx)));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ set_pte(kmap_pte-idx, mk_pte(page, prot));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ arch_flush_lazy_mmu_mode();
+
+ return (void *)vaddr;
+@@ -101,15 +115,29 @@ void kunmap_atomic(void *kvaddr, enum km
+ unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
+ enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ /*
+ * Force other mappings to Oops if they'll try to access this pte
+ * without first remap it. Keeping stale mappings around is a bad idea
+ * also, in case the page changes cacheability attributes or becomes
+ * a protected page in a hypervisor.
+ */
+- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
++ if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ kpte_clear_flush(kmap_pte-idx, vaddr);
+- else {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ } else {
+ #ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(vaddr < PAGE_OFFSET);
+ BUG_ON(vaddr >= (unsigned long)high_memory);
+@@ -128,11 +156,25 @@ void *kmap_atomic_pfn(unsigned long pfn,
+ enum fixed_addresses idx;
+ unsigned long vaddr;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ pagefault_disable();
+
+ idx = type + KM_TYPE_NR*smp_processor_id();
+ vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ set_pte(kmap_pte-idx, pfn_pte(pfn, kmap_prot));
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ arch_flush_lazy_mmu_mode();
+
+ return (void*) vaddr;
+diff -urNp linux-2.6.28.8/arch/x86/mm/hugetlbpage.c linux-2.6.28.8/arch/x86/mm/hugetlbpage.c
+--- linux-2.6.28.8/arch/x86/mm/hugetlbpage.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/hugetlbpage.c 2009-02-21 09:37:48.000000000 -0500
+@@ -263,13 +263,18 @@ static unsigned long hugetlb_get_unmappe
+ struct hstate *h = hstate_file(file);
+ struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma;
+- unsigned long start_addr;
++ unsigned long start_addr, pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
+
+ if (len > mm->cached_hole_size) {
+- start_addr = mm->free_area_cache;
++ start_addr = mm->free_area_cache;
+ } else {
+- start_addr = TASK_UNMAPPED_BASE;
+- mm->cached_hole_size = 0;
++ start_addr = mm->mmap_base;
++ mm->cached_hole_size = 0;
+ }
+
+ full_search:
+@@ -277,13 +282,13 @@ full_search:
+
+ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
+ /* At this point: (!vma || addr < vma->vm_end). */
+- if (TASK_SIZE - len < addr) {
++ if (pax_task_size - len < addr) {
+ /*
+ * Start a new search - just in case we missed
+ * some holes.
+ */
+- if (start_addr != TASK_UNMAPPED_BASE) {
+- start_addr = TASK_UNMAPPED_BASE;
++ if (start_addr != mm->mmap_base) {
++ start_addr = mm->mmap_base;
+ mm->cached_hole_size = 0;
+ goto full_search;
+ }
+@@ -306,9 +311,8 @@ static unsigned long hugetlb_get_unmappe
+ struct hstate *h = hstate_file(file);
+ struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma, *prev_vma;
+- unsigned long base = mm->mmap_base, addr = addr0;
++ unsigned long base = mm->mmap_base, addr;
+ unsigned long largest_hole = mm->cached_hole_size;
+- int first_time = 1;
+
+ /* don't allow allocations above current base */
+ if (mm->free_area_cache > base)
+@@ -318,7 +322,7 @@ static unsigned long hugetlb_get_unmappe
+ largest_hole = 0;
+ mm->free_area_cache = base;
+ }
+-try_again:
++
+ /* make sure it can fit in the remaining address space */
+ if (mm->free_area_cache < len)
+ goto fail;
+@@ -360,22 +364,26 @@ try_again:
+
+ fail:
+ /*
+- * if hint left us with no space for the requested
+- * mapping then try again:
+- */
+- if (first_time) {
+- mm->free_area_cache = base;
+- largest_hole = 0;
+- first_time = 0;
+- goto try_again;
+- }
+- /*
+ * A failed mmap() very likely causes application failure,
+ * so fall back to the bottom-up function here. This scenario
+ * can happen with large stack limits and large mmap()
+ * allocations.
+ */
+- mm->free_area_cache = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE;
++ else
++#endif
++
++ mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
++ mm->free_area_cache = mm->mmap_base;
+ mm->cached_hole_size = ~0UL;
+ addr = hugetlb_get_unmapped_area_bottomup(file, addr0,
+ len, pgoff, flags);
+@@ -383,6 +391,7 @@ fail:
+ /*
+ * Restore the topdown base:
+ */
++ mm->mmap_base = base;
+ mm->free_area_cache = base;
+ mm->cached_hole_size = ~0UL;
+
+@@ -396,10 +405,17 @@ hugetlb_get_unmapped_area(struct file *f
+ struct hstate *h = hstate_file(file);
+ struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma;
++ unsigned long pax_task_size = TASK_SIZE;
+
+ if (len & ~huge_page_mask(h))
+ return -EINVAL;
+- if (len > TASK_SIZE)
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++ if (len > pax_task_size)
+ return -ENOMEM;
+
+ if (flags & MAP_FIXED) {
+@@ -411,7 +427,7 @@ hugetlb_get_unmapped_area(struct file *f
+ if (addr) {
+ addr = ALIGN(addr, huge_page_size(h));
+ vma = find_vma(mm, addr);
+- if (TASK_SIZE - len >= addr &&
++ if (pax_task_size - len >= addr &&
+ (!vma || addr + len <= vma->vm_start))
+ return addr;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/mm/init_32.c linux-2.6.28.8/arch/x86/mm/init_32.c
+--- linux-2.6.28.8/arch/x86/mm/init_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/init_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -49,6 +49,7 @@
+ #include <asm/setup.h>
+ #include <asm/cacheflush.h>
+ #include <asm/smp.h>
++#include <asm/desc.h>
+
+ unsigned int __VMALLOC_RESERVE = 128 << 20;
+
+@@ -82,35 +83,6 @@ static __init void *alloc_low_page(unsig
+ }
+
+ /*
+- * Creates a middle page table and puts a pointer to it in the
+- * given global directory entry. This only returns the gd entry
+- * in non-PAE compilation mode, since the middle layer is folded.
+- */
+-static pmd_t * __init one_md_table_init(pgd_t *pgd)
+-{
+- pud_t *pud;
+- pmd_t *pmd_table;
+-
+-#ifdef CONFIG_X86_PAE
+- unsigned long phys;
+- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
+- if (after_init_bootmem)
+- pmd_table = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+- else
+- pmd_table = (pmd_t *)alloc_low_page(&phys);
+- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
+- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
+- pud = pud_offset(pgd, 0);
+- BUG_ON(pmd_table != pmd_offset(pud, 0));
+- }
+-#endif
+- pud = pud_offset(pgd, 0);
+- pmd_table = pmd_offset(pud, 0);
+-
+- return pmd_table;
+-}
+-
+-/*
+ * Create a page table and place a pointer to it in a middle page
+ * directory entry:
+ */
+@@ -132,7 +104,11 @@ static pte_t * __init one_page_table_ini
+ }
+
+ paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
++#else
+ set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
++#endif
+ BUG_ON(page_table != pte_offset_kernel(pmd, 0));
+ }
+
+@@ -154,6 +130,7 @@ page_table_range_init(unsigned long star
+ int pgd_idx, pmd_idx;
+ unsigned long vaddr;
+ pgd_t *pgd;
++ pud_t *pud;
+ pmd_t *pmd;
+
+ vaddr = start;
+@@ -162,8 +139,13 @@ page_table_range_init(unsigned long star
+ pgd = pgd_base + pgd_idx;
+
+ for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
+- pmd = one_md_table_init(pgd);
+- pmd = pmd + pmd_index(vaddr);
++ pud = pud_offset(pgd, vaddr);
++ pmd = pmd_offset(pud, vaddr);
++
++#ifdef CONFIG_X86_PAE
++ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
++#endif
++
+ for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
+ pmd++, pmd_idx++) {
+ one_page_table_init(pmd);
+@@ -174,11 +156,23 @@ page_table_range_init(unsigned long star
+ }
+ }
+
+-static inline int is_kernel_text(unsigned long addr)
++static inline int is_kernel_text(unsigned long start, unsigned long end)
+ {
+- if (addr >= PAGE_OFFSET && addr <= (unsigned long)__init_end)
+- return 1;
+- return 0;
++ unsigned long etext;
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ etext = ktva_ktla((unsigned long)&MODULES_END);
++#else
++ etext = (unsigned long)&_etext;
++#endif
++
++ if ((start > ktla_ktva(etext) ||
++ end <= ktla_ktva((unsigned long)_stext)) &&
++ (start > ktla_ktva((unsigned long)_einittext) ||
++ end <= ktla_ktva((unsigned long)_sinittext)) &&
++ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
++ return 0;
++ return 1;
+ }
+
+ /*
+@@ -191,9 +185,10 @@ static void __init kernel_physical_mappi
+ unsigned long end_pfn,
+ int use_pse)
+ {
+- int pgd_idx, pmd_idx, pte_ofs;
++ unsigned int pgd_idx, pmd_idx, pte_ofs;
+ unsigned long pfn;
+ pgd_t *pgd;
++ pud_t *pud;
+ pmd_t *pmd;
+ pte_t *pte;
+ unsigned pages_2m, pages_4k;
+@@ -223,8 +218,13 @@ repeat:
+ pfn = start_pfn;
+ pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
+ pgd = pgd_base + pgd_idx;
+- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
+- pmd = one_md_table_init(pgd);
++ for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
++ pud = pud_offset(pgd, 0);
++ pmd = pmd_offset(pud, 0);
++
++#ifdef CONFIG_X86_PAE
++ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
++#endif
+
+ if (pfn >= end_pfn)
+ continue;
+@@ -236,14 +236,13 @@ repeat:
+ #endif
+ for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
+ pmd++, pmd_idx++) {
+- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
++ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
+
+ /*
+ * Map with big pages if possible, otherwise
+ * create normal page tables:
+ */
+ if (use_pse) {
+- unsigned int addr2;
+ pgprot_t prot = PAGE_KERNEL_LARGE;
+ /*
+ * first pass will use the same initial
+@@ -253,11 +252,7 @@ repeat:
+ __pgprot(PTE_IDENT_ATTR |
+ _PAGE_PSE);
+
+- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
+- PAGE_OFFSET + PAGE_SIZE-1;
+-
+- if (is_kernel_text(addr) ||
+- is_kernel_text(addr2))
++ if (is_kernel_text(address, address + PMD_SIZE))
+ prot = PAGE_KERNEL_LARGE_EXEC;
+
+ pages_2m++;
+@@ -274,7 +269,7 @@ repeat:
+ pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
+ pte += pte_ofs;
+ for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
+- pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
++ pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
+ pgprot_t prot = PAGE_KERNEL;
+ /*
+ * first pass will use the same initial
+@@ -282,7 +277,7 @@ repeat:
+ */
+ pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
+
+- if (is_kernel_text(addr))
++ if (is_kernel_text(address, address + PAGE_SIZE))
+ prot = PAGE_KERNEL_EXEC;
+
+ pages_4k++;
+@@ -327,7 +322,9 @@ repeat:
+ */
+ int devmem_is_allowed(unsigned long pagenr)
+ {
+- if (pagenr <= 256)
++ if (!pagenr)
++ return 1;
++ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
+ return 1;
+ if (!page_is_ram(pagenr))
+ return 1;
+@@ -460,7 +457,7 @@ void __init native_pagetable_setup_start
+
+ pud = pud_offset(pgd, va);
+ pmd = pmd_offset(pud, va);
+- if (!pmd_present(*pmd))
++ if (!pmd_present(*pmd) || pmd_huge(*pmd))
+ break;
+
+ pte = pte_offset_kernel(pmd, va);
+@@ -512,9 +509,7 @@ static void __init early_ioremap_page_ta
+
+ static void __init pagetable_init(void)
+ {
+- pgd_t *pgd_base = swapper_pg_dir;
+-
+- permanent_kmaps_init(pgd_base);
++ permanent_kmaps_init(swapper_pg_dir);
+ }
+
+ #ifdef CONFIG_ACPI_SLEEP
+@@ -522,12 +517,12 @@ static void __init pagetable_init(void)
+ * ACPI suspend needs this for resume, because things like the intel-agp
+ * driver might have split up a kernel 4MB mapping.
+ */
+-char swsusp_pg_dir[PAGE_SIZE]
++pgd_t swsusp_pg_dir[PTRS_PER_PGD]
+ __attribute__ ((aligned(PAGE_SIZE)));
+
+ static inline void save_pg_dir(void)
+ {
+- memcpy(swsusp_pg_dir, swapper_pg_dir, PAGE_SIZE);
++ clone_pgd_range(swsusp_pg_dir, swapper_pg_dir, PTRS_PER_PGD);
+ }
+ #else /* !CONFIG_ACPI_SLEEP */
+ static inline void save_pg_dir(void)
+@@ -557,13 +552,11 @@ void zap_low_mappings(void)
+
+ int nx_enabled;
+
+-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
++pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
+ EXPORT_SYMBOL_GPL(__supported_pte_mask);
+
+ #ifdef CONFIG_X86_PAE
+
+-static int disable_nx __initdata;
+-
+ /*
+ * noexec = on|off
+ *
+@@ -572,40 +565,33 @@ static int disable_nx __initdata;
+ * on Enable
+ * off Disable
+ */
++#if !defined(CONFIG_PAX_PAGEEXEC)
+ static int __init noexec_setup(char *str)
+ {
+ if (!str || !strcmp(str, "on")) {
+- if (cpu_has_nx) {
+- __supported_pte_mask |= _PAGE_NX;
+- disable_nx = 0;
+- }
++ if (cpu_has_nx)
++ nx_enabled = 1;
+ } else {
+- if (!strcmp(str, "off")) {
+- disable_nx = 1;
+- __supported_pte_mask &= ~_PAGE_NX;
+- } else {
++ if (!strcmp(str, "off"))
++ nx_enabled = 0;
++ else
+ return -EINVAL;
+- }
+ }
+
+ return 0;
+ }
+ early_param("noexec", noexec_setup);
++#endif
+
+ static void __init set_nx(void)
+ {
+- unsigned int v[4], l, h;
+-
+- if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) {
+- cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]);
++ if (!nx_enabled && cpu_has_nx) {
++ unsigned l, h;
+
+- if ((v[3] & (1 << 20)) && !disable_nx) {
+- rdmsr(MSR_EFER, l, h);
+- l |= EFER_NX;
+- wrmsr(MSR_EFER, l, h);
+- nx_enabled = 1;
+- __supported_pte_mask |= _PAGE_NX;
+- }
++ __supported_pte_mask &= ~_PAGE_NX;
++ rdmsr(MSR_EFER, l, h);
++ l &= ~EFER_NX;
++ wrmsr(MSR_EFER, l, h);
+ }
+ }
+ #endif
+@@ -988,7 +974,7 @@ void __init mem_init(void)
+ set_highmem_pages_init();
+
+ codesize = (unsigned long) &_etext - (unsigned long) &_text;
+- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
++ datasize = (unsigned long) &_edata - (unsigned long) &_data;
+ initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
+
+ kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT);
+@@ -1034,10 +1020,10 @@ void __init mem_init(void)
+ ((unsigned long)&__init_end -
+ (unsigned long)&__init_begin) >> 10,
+
+- (unsigned long)&_etext, (unsigned long)&_edata,
+- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
++ (unsigned long)&_data, (unsigned long)&_edata,
++ ((unsigned long)&_edata - (unsigned long)&_data) >> 10,
+
+- (unsigned long)&_text, (unsigned long)&_etext,
++ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
+ ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
+
+ #ifdef CONFIG_HIGHMEM
+@@ -1166,6 +1152,46 @@ void free_init_pages(char *what, unsigne
+
+ void free_initmem(void)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ /* PaX: limit KERNEL_CS to actual size */
++ unsigned long addr, limit;
++ struct desc_struct d;
++ int cpu;
++ pgd_t *pgd;
++ pud_t *pud;
++ pmd_t *pmd;
++
++#ifdef CONFIG_MODULES
++ limit = ktva_ktla((unsigned long)&MODULES_END);
++#else
++ limit = (unsigned long)&_etext;
++#endif
++ limit = (limit - 1UL) >> PAGE_SHIFT;
++
++ for (cpu = 0; cpu < NR_CPUS; cpu++) {
++ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
++ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
++ }
++
++ /* PaX: make KERNEL_CS read-only */
++ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_data; addr += PMD_SIZE) {
++ pgd = pgd_offset_k(addr);
++ pud = pud_offset(pgd, addr);
++ pmd = pmd_offset(pud, addr);
++ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
++ }
++#ifdef CONFIG_X86_PAE
++ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
++ pgd = pgd_offset_k(addr);
++ pud = pud_offset(pgd, addr);
++ pmd = pmd_offset(pud, addr);
++ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
++ }
++#endif
++ flush_tlb_all();
++#endif
++
+ free_init_pages("unused kernel memory",
+ (unsigned long)(&__init_begin),
+ (unsigned long)(&__init_end));
+diff -urNp linux-2.6.28.8/arch/x86/mm/init_64.c linux-2.6.28.8/arch/x86/mm/init_64.c
+--- linux-2.6.28.8/arch/x86/mm/init_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/init_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -175,6 +175,10 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig
+ pmd_t *pmd;
+ pte_t *pte;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ pud = pud_page + pud_index(vaddr);
+ if (pud_none(*pud)) {
+ pmd = (pmd_t *) spp_getpage();
+@@ -196,8 +200,17 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig
+ }
+
+ pte = pte_offset_kernel(pmd, vaddr);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ set_pte(pte, new_pte);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ /*
+ * It's enough to flush this one mapping.
+ * (PGE mappings get flushed as well)
+@@ -238,14 +251,12 @@ static void __init __init_extra_mapping(
+ pgd = pgd_offset_k((unsigned long)__va(phys));
+ if (pgd_none(*pgd)) {
+ pud = (pud_t *) spp_getpage();
+- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
+- _PAGE_USER));
++ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
+ }
+ pud = pud_offset(pgd, (unsigned long)__va(phys));
+ if (pud_none(*pud)) {
+ pmd = (pmd_t *) spp_getpage();
+- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
+- _PAGE_USER));
++ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
+ }
+ pmd = pmd_offset(pud, phys);
+ BUG_ON(!pmd_none(*pmd));
+@@ -886,7 +897,9 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to
+ */
+ int devmem_is_allowed(unsigned long pagenr)
+ {
+- if (pagenr <= 256)
++ if (!pagenr)
++ return 1;
++ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
+ return 1;
+ if (!page_is_ram(pagenr))
+ return 1;
+@@ -977,6 +990,39 @@ void free_init_pages(char *what, unsigne
+
+ void free_initmem(void)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long addr, end;
++ pgd_t *pgd;
++ pud_t *pud;
++ pmd_t *pmd;
++
++ /* PaX: make kernel code/rodata read-only, rest non-executable */
++ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
++ pgd = pgd_offset_k(addr);
++ pud = pud_offset(pgd, addr);
++ pmd = pmd_offset(pud, addr);
++ if ((unsigned long)_text <= addr && addr < (unsigned long)_data)
++ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
++ else
++ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
++ }
++
++ addr = (unsigned long)__va(__pa(__START_KERNEL_map));
++ end = addr + KERNEL_IMAGE_SIZE;
++ for (; addr < end; addr += PMD_SIZE) {
++ pgd = pgd_offset_k(addr);
++ pud = pud_offset(pgd, addr);
++ pmd = pmd_offset(pud, addr);
++ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_data)))
++ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
++ else
++ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
++ }
++
++ flush_tlb_all();
++#endif
++
+ free_init_pages("unused kernel memory",
+ (unsigned long)(&__init_begin),
+ (unsigned long)(&__init_end));
+@@ -1149,7 +1195,7 @@ int in_gate_area_no_task(unsigned long a
+
+ const char *arch_vma_name(struct vm_area_struct *vma)
+ {
+- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
++ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
+ return "[vdso]";
+ if (vma == &gate_vma)
+ return "[vsyscall]";
+diff -urNp linux-2.6.28.8/arch/x86/mm/ioremap.c linux-2.6.28.8/arch/x86/mm/ioremap.c
+--- linux-2.6.28.8/arch/x86/mm/ioremap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/ioremap.c 2009-02-21 09:37:48.000000000 -0500
+@@ -114,8 +114,8 @@ int page_is_ram(unsigned long pagenr)
+ * Second special case: Some BIOSen report the PC BIOS
+ * area (640->1Mb) as ram even though it is not.
+ */
+- if (pagenr >= (BIOS_BEGIN >> PAGE_SHIFT) &&
+- pagenr < (BIOS_END >> PAGE_SHIFT))
++ if (pagenr >= (ISA_START_ADDRESS >> PAGE_SHIFT) &&
++ pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
+ return 0;
+
+ for (i = 0; i < e820.nr_map; i++) {
+@@ -293,6 +293,8 @@ static void __iomem *__ioremap_caller(re
+ break;
+ }
+
++ prot = canon_pgprot(prot);
++
+ /*
+ * Ok, go for it..
+ */
+@@ -508,7 +510,7 @@ static int __init early_ioremap_debug_se
+ early_param("early_ioremap_debug", early_ioremap_debug_setup);
+
+ static __initdata int after_paging_init;
+-static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
++static __initdata pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __aligned(PAGE_SIZE);
+
+ static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
+ {
+@@ -523,7 +525,11 @@ static inline pmd_t * __init early_iorem
+
+ static inline pte_t * __init early_ioremap_pte(unsigned long addr)
+ {
++#ifdef CONFIG_X86_32
+ return &bm_pte[pte_index(addr)];
++#else
++ return &level1_fixmap_pgt[pte_index(addr)];
++#endif
+ }
+
+ void __init early_ioremap_init(void)
+@@ -534,8 +540,10 @@ void __init early_ioremap_init(void)
+ printk(KERN_INFO "early_ioremap_init()\n");
+
+ pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
++#ifdef CONFIG_X86_32
+ memset(bm_pte, 0, sizeof(bm_pte));
+ pmd_populate_kernel(&init_mm, pmd, bm_pte);
++#endif
+
+ /*
+ * The boot-ioremap range spans multiple pmds, for which
+diff -urNp linux-2.6.28.8/arch/x86/mm/mmap.c linux-2.6.28.8/arch/x86/mm/mmap.c
+--- linux-2.6.28.8/arch/x86/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500
+@@ -36,7 +36,7 @@
+ * Leave an at least ~128 MB hole.
+ */
+ #define MIN_GAP (128*1024*1024)
+-#define MAX_GAP (TASK_SIZE/6*5)
++#define MAX_GAP (pax_task_size/6*5)
+
+ /*
+ * True on X86_32 or when emulating IA32 on X86_64
+@@ -81,27 +81,40 @@ static unsigned long mmap_rnd(void)
+ return rnd << PAGE_SHIFT;
+ }
+
+-static unsigned long mmap_base(void)
++static unsigned long mmap_base(struct mm_struct *mm)
+ {
+ unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur;
++ unsigned long pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
+
+ if (gap < MIN_GAP)
+ gap = MIN_GAP;
+ else if (gap > MAX_GAP)
+ gap = MAX_GAP;
+
+- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
++ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
+ }
+
+ /*
+ * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
+ * does, but not when emulating X86_32
+ */
+-static unsigned long mmap_legacy_base(void)
++static unsigned long mmap_legacy_base(struct mm_struct *mm)
+ {
+- if (mmap_is_ia32())
++ if (mmap_is_ia32()) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC)
++ return SEGMEXEC_TASK_UNMAPPED_BASE;
++ else
++#endif
++
+ return TASK_UNMAPPED_BASE;
+- else
++ } else
+ return TASK_UNMAPPED_BASE + mmap_rnd();
+ }
+
+@@ -112,11 +125,23 @@ static unsigned long mmap_legacy_base(vo
+ void arch_pick_mmap_layout(struct mm_struct *mm)
+ {
+ if (mmap_is_legacy()) {
+- mm->mmap_base = mmap_legacy_base();
++ mm->mmap_base = mmap_legacy_base(mm);
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
+ mm->get_unmapped_area = arch_get_unmapped_area;
+ mm->unmap_area = arch_unmap_area;
+ } else {
+- mm->mmap_base = mmap_base();
++ mm->mmap_base = mmap_base(mm);
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ mm->unmap_area = arch_unmap_area_topdown;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/mm/numa_32.c linux-2.6.28.8/arch/x86/mm/numa_32.c
+--- linux-2.6.28.8/arch/x86/mm/numa_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/numa_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -98,7 +98,6 @@ unsigned long node_memmap_size_bytes(int
+ }
+ #endif
+
+-extern unsigned long find_max_low_pfn(void);
+ extern unsigned long highend_pfn, highstart_pfn;
+
+ #define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)
+diff -urNp linux-2.6.28.8/arch/x86/mm/pageattr.c linux-2.6.28.8/arch/x86/mm/pageattr.c
+--- linux-2.6.28.8/arch/x86/mm/pageattr.c 2009-02-20 22:26:38.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/pageattr.c 2009-02-21 09:37:48.000000000 -0500
+@@ -20,6 +20,7 @@
+ #include <asm/pgalloc.h>
+ #include <asm/proto.h>
+ #include <asm/pat.h>
++#include <asm/desc.h>
+
+ /*
+ * The current flushing context - we pass it instead of 5 arguments:
+@@ -259,7 +260,7 @@ static inline pgprot_t static_protection
+ * Does not cover __inittext since that is gone later on. On
+ * 64bit we do not enforce !NX on the low mapping
+ */
+- if (within(address, (unsigned long)_text, (unsigned long)_etext))
++ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
+ pgprot_val(forbidden) |= _PAGE_NX;
+
+ /*
+@@ -321,8 +322,20 @@ EXPORT_SYMBOL_GPL(lookup_address);
+ */
+ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
+ /* change init_mm */
+ set_pte_atomic(kpte, pte);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ #ifdef CONFIG_X86_32
+ if (!SHARED_KERNEL_PMD) {
+ struct page *page;
+diff -urNp linux-2.6.28.8/arch/x86/mm/pageattr-test.c linux-2.6.28.8/arch/x86/mm/pageattr-test.c
+--- linux-2.6.28.8/arch/x86/mm/pageattr-test.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/pageattr-test.c 2009-03-07 10:35:39.000000000 -0500
+@@ -36,7 +36,7 @@ enum {
+
+ static int pte_testbit(pte_t pte)
+ {
+- return pte_flags(pte) & _PAGE_UNUSED1;
++ return pte_flags(pte) & _PAGE_CPA_TEST;
+ }
+
+ struct split_state {
+diff -urNp linux-2.6.28.8/arch/x86/mm/pat.c linux-2.6.28.8/arch/x86/mm/pat.c
+--- linux-2.6.28.8/arch/x86/mm/pat.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/pat.c 2009-03-07 14:05:58.000000000 -0500
+@@ -491,7 +491,7 @@ pgprot_t phys_mem_access_prot(struct fil
+ return vma_prot;
+ }
+
+-#ifdef CONFIG_STRICT_DEVMEM
++#ifndef CONFIG_STRICT_DEVMEM
+ /* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM*/
+ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
+ {
+diff -urNp linux-2.6.28.8/arch/x86/mm/pgtable_32.c linux-2.6.28.8/arch/x86/mm/pgtable_32.c
+--- linux-2.6.28.8/arch/x86/mm/pgtable_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/mm/pgtable_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -31,6 +31,10 @@ void set_pte_vaddr(unsigned long vaddr,
+ pmd_t *pmd;
+ pte_t *pte;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ pgd = swapper_pg_dir + pgd_index(vaddr);
+ if (pgd_none(*pgd)) {
+ BUG();
+@@ -47,11 +51,20 @@ void set_pte_vaddr(unsigned long vaddr,
+ return;
+ }
+ pte = pte_offset_kernel(pmd, vaddr);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ if (pte_val(pteval))
+ set_pte_present(&init_mm, vaddr, pte, pteval);
+ else
+ pte_clear(&init_mm, vaddr, pte);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ /*
+ * It's enough to flush this one mapping.
+ * (PGE mappings get flushed as well)
+diff -urNp linux-2.6.28.8/arch/x86/oprofile/backtrace.c linux-2.6.28.8/arch/x86/oprofile/backtrace.c
+--- linux-2.6.28.8/arch/x86/oprofile/backtrace.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/oprofile/backtrace.c 2009-02-21 09:37:48.000000000 -0500
+@@ -37,7 +37,7 @@ static void backtrace_address(void *data
+ unsigned int *depth = data;
+
+ if ((*depth)--)
+- oprofile_add_trace(addr);
++ oprofile_add_trace(ktla_ktva(addr));
+ }
+
+ static struct stacktrace_ops backtrace_ops = {
+@@ -78,7 +78,7 @@ x86_backtrace(struct pt_regs * const reg
+ struct frame_head *head = (struct frame_head *)frame_pointer(regs);
+ unsigned long stack = kernel_trap_sp(regs);
+
+- if (!user_mode_vm(regs)) {
++ if (!user_mode(regs)) {
+ if (depth)
+ dump_trace(NULL, regs, (unsigned long *)stack, 0,
+ &backtrace_ops, &depth);
+diff -urNp linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c
+--- linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c 2009-02-21 09:37:48.000000000 -0500
+@@ -48,7 +48,7 @@ static inline void setup_num_counters(vo
+ #endif
+ }
+
+-static int inline addr_increment(void)
++static inline int addr_increment(void)
+ {
+ #ifdef CONFIG_SMP
+ return smp_num_siblings == 2 ? 2 : 1;
+diff -urNp linux-2.6.28.8/arch/x86/pci/common.c linux-2.6.28.8/arch/x86/pci/common.c
+--- linux-2.6.28.8/arch/x86/pci/common.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/pci/common.c 2009-02-21 09:37:48.000000000 -0500
+@@ -362,7 +362,7 @@ static struct dmi_system_id __devinitdat
+ DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
+ },
+ },
+- {}
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}
+ };
+
+ void __init dmi_check_pciprobe(void)
+diff -urNp linux-2.6.28.8/arch/x86/pci/fixup.c linux-2.6.28.8/arch/x86/pci/fixup.c
+--- linux-2.6.28.8/arch/x86/pci/fixup.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/pci/fixup.c 2009-02-21 09:37:48.000000000 -0500
+@@ -365,7 +365,7 @@ static struct dmi_system_id __devinitdat
+ DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"),
+ },
+ },
+- {}
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+
+ /*
+@@ -436,7 +436,7 @@ static struct dmi_system_id __devinitdat
+ DMI_MATCH(DMI_PRODUCT_VERSION, "PSA40U"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+
+ static void __devinit pci_pre_fixup_toshiba_ohci1394(struct pci_dev *dev)
+diff -urNp linux-2.6.28.8/arch/x86/pci/irq.c linux-2.6.28.8/arch/x86/pci/irq.c
+--- linux-2.6.28.8/arch/x86/pci/irq.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/pci/irq.c 2009-02-21 09:37:48.000000000 -0500
+@@ -544,7 +544,7 @@ static __init int intel_router_probe(str
+ static struct pci_device_id __initdata pirq_440gx[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2) },
+- { },
++ { PCI_DEVICE(0, 0) }
+ };
+
+ /* 440GX has a proprietary PIRQ router -- don't use it */
+@@ -1148,7 +1148,7 @@ static struct dmi_system_id __initdata p
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+
+ int __init pcibios_irq_init(void)
+diff -urNp linux-2.6.28.8/arch/x86/pci/pcbios.c linux-2.6.28.8/arch/x86/pci/pcbios.c
+--- linux-2.6.28.8/arch/x86/pci/pcbios.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/pci/pcbios.c 2009-02-21 09:37:48.000000000 -0500
+@@ -57,50 +57,120 @@ union bios32 {
+ static struct {
+ unsigned long address;
+ unsigned short segment;
+-} bios32_indirect = { 0, __KERNEL_CS };
++} bios32_indirect __read_only = { 0, __PCIBIOS_CS };
+
+ /*
+ * Returns the entry point for the given service, NULL on error
+ */
+
+-static unsigned long bios32_service(unsigned long service)
++static unsigned long __devinit bios32_service(unsigned long service)
+ {
+ unsigned char return_code; /* %al */
+ unsigned long address; /* %ebx */
+ unsigned long length; /* %ecx */
+ unsigned long entry; /* %edx */
+ unsigned long flags;
++ struct desc_struct d, *gdt;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
+
+ local_irq_save(flags);
+- __asm__("lcall *(%%edi); cld"
++
++ gdt = get_cpu_gdt_table(smp_processor_id());
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
++ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
+ : "=a" (return_code),
+ "=b" (address),
+ "=c" (length),
+ "=d" (entry)
+ : "0" (service),
+ "1" (0),
+- "D" (&bios32_indirect));
++ "D" (&bios32_indirect),
++ "r"(__PCIBIOS_DS)
++ : "memory");
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
++ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
++ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
++ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ local_irq_restore(flags);
+
+ switch (return_code) {
+- case 0:
+- return address + entry;
+- case 0x80: /* Not present */
+- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
+- return 0;
+- default: /* Shouldn't happen */
+- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
+- service, return_code);
++ case 0: {
++ int cpu;
++ unsigned char flags;
++
++ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
++ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
++ printk(KERN_WARNING "bios32_service: not valid\n");
+ return 0;
++ }
++ address = address + PAGE_OFFSET;
++ length += 16UL; /* some BIOSs underreport this... */
++ flags = 4;
++ if (length >= 64*1024*1024) {
++ length >>= PAGE_SHIFT;
++ flags |= 8;
++ }
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ for (cpu = 0; cpu < NR_CPUS; cpu++) {
++ gdt = get_cpu_gdt_table(cpu);
++ pack_descriptor(&d, address, length, 0x9b, flags);
++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
++ pack_descriptor(&d, address, length, 0x93, flags);
++ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
++ }
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ return entry;
++ }
++ case 0x80: /* Not present */
++ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
++ return 0;
++ default: /* Shouldn't happen */
++ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
++ service, return_code);
++ return 0;
+ }
+ }
+
+ static struct {
+ unsigned long address;
+ unsigned short segment;
+-} pci_indirect = { 0, __KERNEL_CS };
++} pci_indirect __read_only = { 0, __PCIBIOS_CS };
+
+-static int pci_bios_present;
++static int pci_bios_present __read_only;
+
+ static int __devinit check_pcibios(void)
+ {
+@@ -109,11 +179,13 @@ static int __devinit check_pcibios(void)
+ unsigned long flags, pcibios_entry;
+
+ if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
+- pci_indirect.address = pcibios_entry + PAGE_OFFSET;
++ pci_indirect.address = pcibios_entry;
+
+ local_irq_save(flags);
+- __asm__(
+- "lcall *(%%edi); cld\n\t"
++ __asm__("movw %w6, %%ds\n\t"
++ "lcall *%%ss:(%%edi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n\t"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -122,7 +194,8 @@ static int __devinit check_pcibios(void)
+ "=b" (ebx),
+ "=c" (ecx)
+ : "1" (PCIBIOS_PCI_BIOS_PRESENT),
+- "D" (&pci_indirect)
++ "D" (&pci_indirect),
++ "r" (__PCIBIOS_DS)
+ : "memory");
+ local_irq_restore(flags);
+
+@@ -166,7 +239,10 @@ static int pci_bios_read(unsigned int se
+
+ switch (len) {
+ case 1:
+- __asm__("lcall *(%%esi); cld\n\t"
++ __asm__("movw %w6, %%ds\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n\t"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -175,7 +251,8 @@ static int pci_bios_read(unsigned int se
+ : "1" (PCIBIOS_READ_CONFIG_BYTE),
+ "b" (bx),
+ "D" ((long)reg),
+- "S" (&pci_indirect));
++ "S" (&pci_indirect),
++ "r" (__PCIBIOS_DS));
+ /*
+ * Zero-extend the result beyond 8 bits, do not trust the
+ * BIOS having done it:
+@@ -183,7 +260,10 @@ static int pci_bios_read(unsigned int se
+ *value &= 0xff;
+ break;
+ case 2:
+- __asm__("lcall *(%%esi); cld\n\t"
++ __asm__("movw %w6, %%ds\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n\t"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -192,7 +272,8 @@ static int pci_bios_read(unsigned int se
+ : "1" (PCIBIOS_READ_CONFIG_WORD),
+ "b" (bx),
+ "D" ((long)reg),
+- "S" (&pci_indirect));
++ "S" (&pci_indirect),
++ "r" (__PCIBIOS_DS));
+ /*
+ * Zero-extend the result beyond 16 bits, do not trust the
+ * BIOS having done it:
+@@ -200,7 +281,10 @@ static int pci_bios_read(unsigned int se
+ *value &= 0xffff;
+ break;
+ case 4:
+- __asm__("lcall *(%%esi); cld\n\t"
++ __asm__("movw %w6, %%ds\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n\t"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -209,7 +293,8 @@ static int pci_bios_read(unsigned int se
+ : "1" (PCIBIOS_READ_CONFIG_DWORD),
+ "b" (bx),
+ "D" ((long)reg),
+- "S" (&pci_indirect));
++ "S" (&pci_indirect),
++ "r" (__PCIBIOS_DS));
+ break;
+ }
+
+@@ -232,7 +317,10 @@ static int pci_bios_write(unsigned int s
+
+ switch (len) {
+ case 1:
+- __asm__("lcall *(%%esi); cld\n\t"
++ __asm__("movw %w6, %%ds\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n\t"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -241,10 +329,14 @@ static int pci_bios_write(unsigned int s
+ "c" (value),
+ "b" (bx),
+ "D" ((long)reg),
+- "S" (&pci_indirect));
++ "S" (&pci_indirect),
++ "r" (__PCIBIOS_DS));
+ break;
+ case 2:
+- __asm__("lcall *(%%esi); cld\n\t"
++ __asm__("movw %w6, %%ds\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n\t"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -253,10 +345,14 @@ static int pci_bios_write(unsigned int s
+ "c" (value),
+ "b" (bx),
+ "D" ((long)reg),
+- "S" (&pci_indirect));
++ "S" (&pci_indirect),
++ "r" (__PCIBIOS_DS));
+ break;
+ case 4:
+- __asm__("lcall *(%%esi); cld\n\t"
++ __asm__("movw %w6, %%ds\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n\t"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -265,7 +361,8 @@ static int pci_bios_write(unsigned int s
+ "c" (value),
+ "b" (bx),
+ "D" ((long)reg),
+- "S" (&pci_indirect));
++ "S" (&pci_indirect),
++ "r" (__PCIBIOS_DS));
+ break;
+ }
+
+@@ -369,10 +466,13 @@ struct irq_routing_table * pcibios_get_i
+
+ DBG("PCI: Fetching IRQ routing table... ");
+ __asm__("push %%es\n\t"
++ "movw %w8, %%ds\n\t"
+ "push %%ds\n\t"
+ "pop %%es\n\t"
+- "lcall *(%%esi); cld\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
+ "pop %%es\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -383,7 +483,8 @@ struct irq_routing_table * pcibios_get_i
+ "1" (0),
+ "D" ((long) &opt),
+ "S" (&pci_indirect),
+- "m" (opt)
++ "m" (opt),
++ "r" (__PCIBIOS_DS)
+ : "memory");
+ DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
+ if (ret & 0xff00)
+@@ -407,7 +508,10 @@ int pcibios_set_irq_routing(struct pci_d
+ {
+ int ret;
+
+- __asm__("lcall *(%%esi); cld\n\t"
++ __asm__("movw %w5, %%ds\n\t"
++ "lcall *%%ss:(%%esi); cld\n\t"
++ "push %%ss\n\t"
++ "pop %%ds\n"
+ "jc 1f\n\t"
+ "xor %%ah, %%ah\n"
+ "1:"
+@@ -415,7 +519,8 @@ int pcibios_set_irq_routing(struct pci_d
+ : "0" (PCIBIOS_SET_PCI_HW_INT),
+ "b" ((dev->bus->number << 8) | dev->devfn),
+ "c" ((irq << 8) | (pin + 10)),
+- "S" (&pci_indirect));
++ "S" (&pci_indirect),
++ "r" (__PCIBIOS_DS));
+ return !(ret & 0xff00);
+ }
+ EXPORT_SYMBOL(pcibios_set_irq_routing);
+diff -urNp linux-2.6.28.8/arch/x86/power/cpu_32.c linux-2.6.28.8/arch/x86/power/cpu_32.c
+--- linux-2.6.28.8/arch/x86/power/cpu_32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/power/cpu_32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -67,7 +67,7 @@ static void do_fpu_end(void)
+ static void fix_processor_context(void)
+ {
+ int cpu = smp_processor_id();
+- struct tss_struct *t = &per_cpu(init_tss, cpu);
++ struct tss_struct *t = init_tss + cpu;
+
+ set_tss_desc(cpu, t); /*
+ * This just modifies memory; should not be
+diff -urNp linux-2.6.28.8/arch/x86/power/cpu_64.c linux-2.6.28.8/arch/x86/power/cpu_64.c
+--- linux-2.6.28.8/arch/x86/power/cpu_64.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/power/cpu_64.c 2009-02-21 09:37:48.000000000 -0500
+@@ -143,7 +143,11 @@ void restore_processor_state(void)
+ static void fix_processor_context(void)
+ {
+ int cpu = smp_processor_id();
+- struct tss_struct *t = &per_cpu(init_tss, cpu);
++ struct tss_struct *t = init_tss + cpu;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
+
+ /*
+ * This just modifies memory; should not be necessary. But... This
+@@ -152,8 +156,16 @@ static void fix_processor_context(void)
+ */
+ set_tss_desc(cpu, t);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ syscall_init(); /* This sets MSR_*STAR and related */
+ load_TR_desc(); /* This does ltr */
+ load_LDT(¤t->active_mm->context); /* This does lldt */
+diff -urNp linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c
+--- linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c 2009-02-21 09:37:48.000000000 -0500
+@@ -226,7 +226,7 @@ static inline void map_compat_vdso(int m
+ void enable_sep_cpu(void)
+ {
+ int cpu = get_cpu();
+- struct tss_struct *tss = &per_cpu(init_tss, cpu);
++ struct tss_struct *tss = init_tss + cpu;
+
+ if (!boot_cpu_has(X86_FEATURE_SEP)) {
+ put_cpu();
+@@ -249,7 +249,7 @@ static int __init gate_vma_init(void)
+ gate_vma.vm_start = FIXADDR_USER_START;
+ gate_vma.vm_end = FIXADDR_USER_END;
+ gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
+- gate_vma.vm_page_prot = __P101;
++ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
+ /*
+ * Make sure the vDSO gets into every core dump.
+ * Dumping its contents makes post-mortem fully interpretable later
+@@ -331,7 +331,7 @@ int arch_setup_additional_pages(struct l
+ if (compat)
+ addr = VDSO_HIGH_BASE;
+ else {
+- addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
++ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE);
+ if (IS_ERR_VALUE(addr)) {
+ ret = addr;
+ goto up_fail;
+@@ -358,7 +358,7 @@ int arch_setup_additional_pages(struct l
+ goto up_fail;
+ }
+
+- current->mm->context.vdso = (void *)addr;
++ current->mm->context.vdso = addr;
+ current_thread_info()->sysenter_return =
+ VDSO32_SYMBOL(addr, SYSENTER_RETURN);
+
+@@ -384,7 +384,7 @@ static ctl_table abi_table2[] = {
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static ctl_table abi_root_table2[] = {
+@@ -394,7 +394,7 @@ static ctl_table abi_root_table2[] = {
+ .mode = 0555,
+ .child = abi_table2
+ },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static __init int ia32_binfmt_init(void)
+@@ -409,8 +409,14 @@ __initcall(ia32_binfmt_init);
+
+ const char *arch_vma_name(struct vm_area_struct *vma)
+ {
+- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
++ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
+ return "[vdso]";
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso)
++ return "[vdso]";
++#endif
++
+ return NULL;
+ }
+
+@@ -419,7 +425,7 @@ struct vm_area_struct *get_gate_vma(stru
+ struct mm_struct *mm = tsk->mm;
+
+ /* Check to see if this task was created in compat vdso mode */
+- if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
++ if (mm && mm->context.vdso == VDSO_HIGH_BASE)
+ return &gate_vma;
+ return NULL;
+ }
+diff -urNp linux-2.6.28.8/arch/x86/vdso/vma.c linux-2.6.28.8/arch/x86/vdso/vma.c
+--- linux-2.6.28.8/arch/x86/vdso/vma.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/vdso/vma.c 2009-02-21 09:37:48.000000000 -0500
+@@ -123,7 +123,7 @@ int arch_setup_additional_pages(struct l
+ if (ret)
+ goto up_fail;
+
+- current->mm->context.vdso = (void *)addr;
++ current->mm->context.vdso = addr;
+ up_fail:
+ up_write(&mm->mmap_sem);
+ return ret;
+diff -urNp linux-2.6.28.8/arch/x86/xen/enlighten.c linux-2.6.28.8/arch/x86/xen/enlighten.c
+--- linux-2.6.28.8/arch/x86/xen/enlighten.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/arch/x86/xen/enlighten.c 2009-03-07 10:29:51.000000000 -0500
+@@ -318,7 +318,7 @@ static void xen_set_ldt(const void *addr
+ static void xen_load_gdt(const struct desc_ptr *dtr)
+ {
+ unsigned long *frames;
+- unsigned long va = dtr->address;
++ unsigned long va = (unsigned long)dtr->address;
+ unsigned int size = dtr->size + 1;
+ unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+ int f;
+@@ -333,7 +333,7 @@ static void xen_load_gdt(const struct de
+ mcs = xen_mc_entry(sizeof(*frames) * pages);
+ frames = mcs.args;
+
+- for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
++ for (f = 0; va < (unsigned long)dtr->address + size; va += PAGE_SIZE, f++) {
+ frames[f] = virt_to_mfn(va);
+ make_lowmem_page_readonly((void *)va);
+ }
+@@ -441,7 +441,7 @@ static void xen_write_idt_entry(gate_des
+
+ preempt_disable();
+
+- start = __get_cpu_var(idt_desc).address;
++ start = (unsigned long)__get_cpu_var(idt_desc).address;
+ end = start + __get_cpu_var(idt_desc).size + 1;
+
+ xen_mc_flush();
+@@ -1526,6 +1526,8 @@ static __init pgd_t *xen_setup_kernel_pa
+ convert_pfn_mfn(init_level4_pgt);
+ convert_pfn_mfn(level3_ident_pgt);
+ convert_pfn_mfn(level3_kernel_pgt);
++ convert_pfn_mfn(level3_vmalloc_pgt);
++ convert_pfn_mfn(level3_vmemmap_pgt);
+
+ l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd);
+ l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud);
+@@ -1544,9 +1546,12 @@ static __init pgd_t *xen_setup_kernel_pa
+ set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
+ set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
+ set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
++ set_page_prot(level3_vmalloc_pgt, PAGE_KERNEL_RO);
++ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
+ set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
+ set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
+ set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
++ set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
+
+ /* Pin down new L4 */
+ pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
+diff -urNp linux-2.6.28.8/arch/x86/xen/smp.c linux-2.6.28.8/arch/x86/xen/smp.c
+--- linux-2.6.28.8/arch/x86/xen/smp.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/arch/x86/xen/smp.c 2009-02-21 09:37:48.000000000 -0500
+@@ -171,11 +171,6 @@ static void __init xen_smp_prepare_boot_
+ {
+ BUG_ON(smp_processor_id() != 0);
+ native_smp_prepare_boot_cpu();
+-
+- /* We've switched to the "real" per-cpu gdt, so make sure the
+- old memory can be recycled */
+- make_lowmem_page_readwrite(&per_cpu_var(gdt_page));
+-
+ xen_setup_vcpu_info_placement();
+ }
+
+@@ -231,8 +226,8 @@ cpu_initialize_context(unsigned int cpu,
+ gdt = get_cpu_gdt_table(cpu);
+
+ ctxt->flags = VGCF_IN_KERNEL;
+- ctxt->user_regs.ds = __USER_DS;
+- ctxt->user_regs.es = __USER_DS;
++ ctxt->user_regs.ds = __KERNEL_DS;
++ ctxt->user_regs.es = __KERNEL_DS;
+ ctxt->user_regs.ss = __KERNEL_DS;
+ #ifdef CONFIG_X86_32
+ ctxt->user_regs.fs = __KERNEL_PERCPU;
+diff -urNp linux-2.6.28.8/crypto/async_tx/async_tx.c linux-2.6.28.8/crypto/async_tx/async_tx.c
+--- linux-2.6.28.8/crypto/async_tx/async_tx.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/crypto/async_tx/async_tx.c 2009-02-21 09:37:48.000000000 -0500
+@@ -358,8 +358,8 @@ async_tx_init(void)
+ err:
+ printk(KERN_ERR "async_tx: initialization failure\n");
+
+- while (--cap >= 0)
+- free_percpu(channel_table[cap]);
++ while (cap)
++ free_percpu(channel_table[--cap]);
+
+ return 1;
+ }
+diff -urNp linux-2.6.28.8/crypto/lrw.c linux-2.6.28.8/crypto/lrw.c
+--- linux-2.6.28.8/crypto/lrw.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/crypto/lrw.c 2009-02-21 09:37:48.000000000 -0500
+@@ -54,7 +54,7 @@ static int setkey(struct crypto_tfm *par
+ struct priv *ctx = crypto_tfm_ctx(parent);
+ struct crypto_cipher *child = ctx->child;
+ int err, i;
+- be128 tmp = { 0 };
++ be128 tmp = { 0, 0 };
+ int bsize = crypto_cipher_blocksize(child);
+
+ crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
+diff -urNp linux-2.6.28.8/Documentation/dontdiff linux-2.6.28.8/Documentation/dontdiff
+--- linux-2.6.28.8/Documentation/dontdiff 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/Documentation/dontdiff 2009-02-21 09:37:48.000000000 -0500
+@@ -3,6 +3,7 @@
+ *.bin
+ *.cpio
+ *.csp
++*.dbg
+ *.dsp
+ *.dvi
+ *.elf
+@@ -49,6 +50,10 @@
+ 53c700_d.h
+ CVS
+ ChangeSet
++GPATH
++GRTAGS
++GSYMS
++GTAGS
+ Image
+ Kerntypes
+ Module.markers
+@@ -62,7 +67,6 @@ aic7*reg_print.c*
+ aic7*seq.h*
+ aicasm
+ aicdb.h*
+-asm
+ asm-offsets.h
+ asm_offsets.h
+ autoconf.h*
+@@ -77,6 +81,7 @@ btfixupprep
+ build
+ bvmlinux
+ bzImage*
++capflags.c
+ classlist.h*
+ comp*.log
+ compile.h*
+@@ -188,12 +193,15 @@ version.h*
+ vmlinux
+ vmlinux-*
+ vmlinux.aout
++vmlinux.bin.all
+ vmlinux.lds
++vmlinux.relocs
+ vsyscall.lds
+ vsyscall_32.lds
+ wanxlfw.inc
+ uImage
+ unifdef
++utsrelease.h
+ wakeup.bin
+ wakeup.elf
+ wakeup.lds
+diff -urNp linux-2.6.28.8/drivers/acpi/blacklist.c linux-2.6.28.8/drivers/acpi/blacklist.c
+--- linux-2.6.28.8/drivers/acpi/blacklist.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/acpi/blacklist.c 2009-02-21 09:37:48.000000000 -0500
+@@ -71,7 +71,7 @@ static struct acpi_blacklist_item acpi_b
+ {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
+ "Incorrect _ADR", 1},
+
+- {""}
++ {"", "", 0, 0, 0, all_versions, 0}
+ };
+
+ #if CONFIG_ACPI_BLACKLIST_YEAR
+diff -urNp linux-2.6.28.8/drivers/acpi/osl.c linux-2.6.28.8/drivers/acpi/osl.c
+--- linux-2.6.28.8/drivers/acpi/osl.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/acpi/osl.c 2009-02-21 09:37:48.000000000 -0500
+@@ -483,6 +483,8 @@ acpi_os_read_memory(acpi_physical_addres
+ void __iomem *virt_addr;
+
+ virt_addr = ioremap(phys_addr, width);
++ if (!virt_addr)
++ return AE_NO_MEMORY;
+ if (!value)
+ value = &dummy;
+
+@@ -511,6 +513,8 @@ acpi_os_write_memory(acpi_physical_addre
+ void __iomem *virt_addr;
+
+ virt_addr = ioremap(phys_addr, width);
++ if (!virt_addr)
++ return AE_NO_MEMORY;
+
+ switch (width) {
+ case 8:
+diff -urNp linux-2.6.28.8/drivers/acpi/processor_core.c linux-2.6.28.8/drivers/acpi/processor_core.c
+--- linux-2.6.28.8/drivers/acpi/processor_core.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/acpi/processor_core.c 2009-02-21 09:37:48.000000000 -0500
+@@ -678,7 +678,7 @@ static int __cpuinit acpi_processor_star
+ return 0;
+ }
+
+- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
++ BUG_ON(pr->id >= nr_cpu_ids);
+
+ /*
+ * Buggy BIOS check
+diff -urNp linux-2.6.28.8/drivers/acpi/processor_idle.c linux-2.6.28.8/drivers/acpi/processor_idle.c
+--- linux-2.6.28.8/drivers/acpi/processor_idle.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/acpi/processor_idle.c 2009-02-21 09:37:48.000000000 -0500
+@@ -181,7 +181,7 @@ static struct dmi_system_id __cpuinitdat
+ DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
+ DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")},
+ (void *)2},
+- {},
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL},
+ };
+
+ static inline u32 ticks_elapsed(u32 t1, u32 t2)
+diff -urNp linux-2.6.28.8/drivers/acpi/tables/tbfadt.c linux-2.6.28.8/drivers/acpi/tables/tbfadt.c
+--- linux-2.6.28.8/drivers/acpi/tables/tbfadt.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/acpi/tables/tbfadt.c 2009-02-21 09:37:48.000000000 -0500
+@@ -48,7 +48,7 @@
+ ACPI_MODULE_NAME("tbfadt")
+
+ /* Local prototypes */
+-static void inline
++static inline void
+ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
+ u8 byte_width, u64 address);
+
+@@ -122,7 +122,7 @@ static struct acpi_fadt_info fadt_info_t
+ *
+ ******************************************************************************/
+
+-static void inline
++static inline void
+ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
+ u8 byte_width, u64 address)
+ {
+diff -urNp linux-2.6.28.8/drivers/ata/ahci.c linux-2.6.28.8/drivers/ata/ahci.c
+--- linux-2.6.28.8/drivers/ata/ahci.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ata/ahci.c 2009-02-21 09:37:48.000000000 -0500
+@@ -606,7 +606,7 @@ static const struct pci_device_id ahci_p
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
+
+- { } /* terminate list */
++ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */
+ };
+
+
+diff -urNp linux-2.6.28.8/drivers/ata/ata_piix.c linux-2.6.28.8/drivers/ata/ata_piix.c
+--- linux-2.6.28.8/drivers/ata/ata_piix.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ata/ata_piix.c 2009-02-21 09:37:48.000000000 -0500
+@@ -289,7 +289,7 @@ static const struct pci_device_id piix_p
+ { 0x8086, 0x3b2d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+ /* SATA Controller IDE (PCH) */
+ { 0x8086, 0x3b2e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
+- { } /* terminate list */
++ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */
+ };
+
+ static struct pci_driver piix_pci_driver = {
+@@ -593,7 +593,7 @@ static const struct ich_laptop ich_lapto
+ { 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */
+ { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */
+ /* end marker */
+- { 0, }
++ { 0, 0, 0 }
+ };
+
+ /**
+@@ -1052,7 +1052,7 @@ static int piix_broken_suspend(void)
+ },
+ },
+
+- { } /* terminate list */
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } /* terminate list */
+ };
+ static const char *oemstrs[] = {
+ "Tecra M3,",
+diff -urNp linux-2.6.28.8/drivers/ata/libata-core.c linux-2.6.28.8/drivers/ata/libata-core.c
+--- linux-2.6.28.8/drivers/ata/libata-core.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/drivers/ata/libata-core.c 2009-03-07 10:29:51.000000000 -0500
+@@ -807,7 +807,7 @@ static const struct ata_xfer_ent {
+ { ATA_SHIFT_PIO, ATA_NR_PIO_MODES, XFER_PIO_0 },
+ { ATA_SHIFT_MWDMA, ATA_NR_MWDMA_MODES, XFER_MW_DMA_0 },
+ { ATA_SHIFT_UDMA, ATA_NR_UDMA_MODES, XFER_UDMA_0 },
+- { -1, },
++ { -1, 0, 0 }
+ };
+
+ /**
+@@ -2983,7 +2983,7 @@ static const struct ata_timing ata_timin
+ { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 },
+ { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 },
+
+- { 0xFF }
++ { 0xFF, 0, 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ #define ENOUGH(v, unit) (((v)-1)/(unit)+1)
+@@ -4149,7 +4149,7 @@ static const struct ata_blacklist_entry
+ { "MTRON MSP-SATA*", NULL, ATA_HORKAGE_BRIDGE_OK, },
+
+ /* End Marker */
+- { }
++ { NULL, NULL, 0 }
+ };
+
+ static int strn_pattern_cmp(const char *patt, const char *name, int wildchar)
+diff -urNp linux-2.6.28.8/drivers/char/agp/frontend.c linux-2.6.28.8/drivers/char/agp/frontend.c
+--- linux-2.6.28.8/drivers/char/agp/frontend.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/agp/frontend.c 2009-02-21 09:37:48.000000000 -0500
+@@ -824,7 +824,7 @@ static int agpioc_reserve_wrap(struct ag
+ if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
+ return -EFAULT;
+
+- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
++ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
+ return -EFAULT;
+
+ client = agp_find_client_by_pid(reserve.pid);
+diff -urNp linux-2.6.28.8/drivers/char/agp/intel-agp.c linux-2.6.28.8/drivers/char/agp/intel-agp.c
+--- linux-2.6.28.8/drivers/char/agp/intel-agp.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/drivers/char/agp/intel-agp.c 2009-03-07 10:29:51.000000000 -0500
+@@ -2369,7 +2369,7 @@ static struct pci_device_id agp_intel_pc
+ ID(PCI_DEVICE_ID_INTEL_Q45_HB),
+ ID(PCI_DEVICE_ID_INTEL_G45_HB),
+ ID(PCI_DEVICE_ID_INTEL_G41_HB),
+- { }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, agp_intel_pci_table);
+diff -urNp linux-2.6.28.8/drivers/char/hpet.c linux-2.6.28.8/drivers/char/hpet.c
+--- linux-2.6.28.8/drivers/char/hpet.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/hpet.c 2009-02-21 09:37:48.000000000 -0500
+@@ -975,7 +975,7 @@ static struct acpi_driver hpet_acpi_driv
+ },
+ };
+
+-static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops };
++static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops, {NULL, NULL}, NULL, NULL };
+
+ static int __init hpet_init(void)
+ {
+diff -urNp linux-2.6.28.8/drivers/char/keyboard.c linux-2.6.28.8/drivers/char/keyboard.c
+--- linux-2.6.28.8/drivers/char/keyboard.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/keyboard.c 2009-02-21 09:37:48.000000000 -0500
+@@ -635,6 +635,16 @@ static void k_spec(struct vc_data *vc, u
+ kbd->kbdmode == VC_MEDIUMRAW) &&
+ value != KVAL(K_SAK))
+ return; /* SAK is allowed even in raw mode */
++
++#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
++ {
++ void *func = fn_handler[value];
++ if (func == fn_show_state || func == fn_show_ptregs ||
++ func == fn_show_mem)
++ return;
++ }
++#endif
++
+ fn_handler[value](vc);
+ }
+
+@@ -1388,7 +1398,7 @@ static const struct input_device_id kbd_
+ .evbit = { BIT_MASK(EV_SND) },
+ },
+
+- { }, /* Terminating entry */
++ { 0 }, /* Terminating entry */
+ };
+
+ MODULE_DEVICE_TABLE(input, kbd_ids);
+diff -urNp linux-2.6.28.8/drivers/char/mem.c linux-2.6.28.8/drivers/char/mem.c
+--- linux-2.6.28.8/drivers/char/mem.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/mem.c 2009-02-21 09:37:48.000000000 -0500
+@@ -18,6 +18,7 @@
+ #include <linux/raw.h>
+ #include <linux/tty.h>
+ #include <linux/capability.h>
++#include <linux/security.h>
+ #include <linux/ptrace.h>
+ #include <linux/device.h>
+ #include <linux/highmem.h>
+@@ -35,6 +36,10 @@
+ # include <linux/efi.h>
+ #endif
+
++#ifdef CONFIG_GRKERNSEC
++extern struct file_operations grsec_fops;
++#endif
++
+ /*
+ * Architectures vary in how they handle caching for addresses
+ * outside of main memory.
+@@ -192,6 +197,11 @@ static ssize_t write_mem(struct file * f
+ if (!valid_phys_addr_range(p, count))
+ return -EFAULT;
+
++#ifdef CONFIG_GRKERNSEC_KMEM
++ gr_handle_mem_write();
++ return -EPERM;
++#endif
++
+ written = 0;
+
+ #ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
+@@ -350,6 +360,11 @@ static int mmap_mem(struct file * file,
+ &vma->vm_page_prot))
+ return -EINVAL;
+
++#ifdef CONFIG_GRKERNSEC_KMEM
++ if (gr_handle_mem_mmap(vma->vm_pgoff << PAGE_SHIFT, vma))
++ return -EPERM;
++#endif
++
+ vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
+ size,
+ vma->vm_page_prot);
+@@ -588,6 +603,11 @@ static ssize_t write_kmem(struct file *
+ ssize_t written;
+ char * kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */
+
++#ifdef CONFIG_GRKERNSEC_KMEM
++ gr_handle_kmem_write();
++ return -EPERM;
++#endif
++
+ if (p < (unsigned long) high_memory) {
+
+ wrote = count;
+@@ -791,6 +811,16 @@ static loff_t memory_lseek(struct file *
+
+ static int open_port(struct inode * inode, struct file * filp)
+ {
++#ifdef CONFIG_GRKERNSEC_KMEM
++ gr_handle_open_port();
++ return -EPERM;
++#endif
++
++ return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
++}
++
++static int open_mem(struct inode * inode, struct file * filp)
++{
+ return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
+ }
+
+@@ -798,7 +828,6 @@ static int open_port(struct inode * inod
+ #define full_lseek null_lseek
+ #define write_zero write_null
+ #define read_full read_zero
+-#define open_mem open_port
+ #define open_kmem open_mem
+ #define open_oldmem open_mem
+
+@@ -938,6 +967,11 @@ static int memory_open(struct inode * in
+ filp->f_op = &oldmem_fops;
+ break;
+ #endif
++#ifdef CONFIG_GRKERNSEC
++ case 13:
++ filp->f_op = &grsec_fops;
++ break;
++#endif
+ default:
+ unlock_kernel();
+ return -ENXIO;
+@@ -974,6 +1008,9 @@ static const struct {
+ #ifdef CONFIG_CRASH_DUMP
+ {12,"oldmem", S_IRUSR | S_IWUSR | S_IRGRP, &oldmem_fops},
+ #endif
++#ifdef CONFIG_GRKERNSEC
++ {13,"grsec", S_IRUSR | S_IWUGO, &grsec_fops},
++#endif
+ };
+
+ static struct class *mem_class;
+diff -urNp linux-2.6.28.8/drivers/char/nvram.c linux-2.6.28.8/drivers/char/nvram.c
+--- linux-2.6.28.8/drivers/char/nvram.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/nvram.c 2009-02-21 09:37:48.000000000 -0500
+@@ -433,7 +433,10 @@ static const struct file_operations nvra
+ static struct miscdevice nvram_dev = {
+ NVRAM_MINOR,
+ "nvram",
+- &nvram_fops
++ &nvram_fops,
++ {NULL, NULL},
++ NULL,
++ NULL
+ };
+
+ static int __init
+diff -urNp linux-2.6.28.8/drivers/char/random.c linux-2.6.28.8/drivers/char/random.c
+--- linux-2.6.28.8/drivers/char/random.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/random.c 2009-02-21 09:37:48.000000000 -0500
+@@ -249,8 +249,13 @@
+ /*
+ * Configuration information
+ */
++#ifdef CONFIG_GRKERNSEC_RANDNET
++#define INPUT_POOL_WORDS 512
++#define OUTPUT_POOL_WORDS 128
++#else
+ #define INPUT_POOL_WORDS 128
+ #define OUTPUT_POOL_WORDS 32
++#endif
+ #define SEC_XFER_SIZE 512
+
+ /*
+@@ -287,10 +292,17 @@ static struct poolinfo {
+ int poolwords;
+ int tap1, tap2, tap3, tap4, tap5;
+ } poolinfo_table[] = {
++#ifdef CONFIG_GRKERNSEC_RANDNET
++ /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */
++ { 512, 411, 308, 208, 104, 1 },
++ /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */
++ { 128, 103, 76, 51, 25, 1 },
++#else
+ /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
+ { 128, 103, 76, 51, 25, 1 },
+ /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
+ { 32, 26, 20, 14, 7, 1 },
++#endif
+ #if 0
+ /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */
+ { 2048, 1638, 1231, 819, 411, 1 },
+@@ -1185,7 +1197,7 @@ EXPORT_SYMBOL(generate_random_uuid);
+ #include <linux/sysctl.h>
+
+ static int min_read_thresh = 8, min_write_thresh;
+-static int max_read_thresh = INPUT_POOL_WORDS * 32;
++static int max_read_thresh = OUTPUT_POOL_WORDS * 32;
+ static int max_write_thresh = INPUT_POOL_WORDS * 32;
+ static char sysctl_bootid[16];
+
+diff -urNp linux-2.6.28.8/drivers/char/tpm/tpm.c linux-2.6.28.8/drivers/char/tpm/tpm.c
+--- linux-2.6.28.8/drivers/char/tpm/tpm.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/tpm/tpm.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1035,7 +1035,7 @@ ssize_t tpm_write(struct file *file, con
+
+ mutex_lock(&chip->buffer_mutex);
+
+- if (in_size > TPM_BUFSIZE)
++ if (in_size > (unsigned int)TPM_BUFSIZE)
+ in_size = TPM_BUFSIZE;
+
+ if (copy_from_user
+diff -urNp linux-2.6.28.8/drivers/char/vt_ioctl.c linux-2.6.28.8/drivers/char/vt_ioctl.c
+--- linux-2.6.28.8/drivers/char/vt_ioctl.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/char/vt_ioctl.c 2009-02-21 09:37:48.000000000 -0500
+@@ -96,6 +96,12 @@ do_kdsk_ioctl(int cmd, struct kbentry __
+ case KDSKBENT:
+ if (!perm)
+ return -EPERM;
++
++#ifdef CONFIG_GRKERNSEC
++ if (!capable(CAP_SYS_TTY_CONFIG))
++ return -EPERM;
++#endif
++
+ if (!i && v == K_NOSUCHMAP) {
+ /* deallocate map */
+ key_map = key_maps[s];
+@@ -236,6 +242,13 @@ do_kdgkb_ioctl(int cmd, struct kbsentry
+ goto reterr;
+ }
+
++#ifdef CONFIG_GRKERNSEC
++ if (!capable(CAP_SYS_TTY_CONFIG)) {
++ ret = -EPERM;
++ goto reterr;
++ }
++#endif
++
+ q = func_table[i];
+ first_free = funcbufptr + (funcbufsize - funcbufleft);
+ for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++)
+diff -urNp linux-2.6.28.8/drivers/edac/edac_core.h linux-2.6.28.8/drivers/edac/edac_core.h
+--- linux-2.6.28.8/drivers/edac/edac_core.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/edac/edac_core.h 2009-02-21 09:37:48.000000000 -0500
+@@ -85,11 +85,11 @@ extern int edac_debug_level;
+
+ #else /* !CONFIG_EDAC_DEBUG */
+
+-#define debugf0( ... )
+-#define debugf1( ... )
+-#define debugf2( ... )
+-#define debugf3( ... )
+-#define debugf4( ... )
++#define debugf0( ... ) do {} while (0)
++#define debugf1( ... ) do {} while (0)
++#define debugf2( ... ) do {} while (0)
++#define debugf3( ... ) do {} while (0)
++#define debugf4( ... ) do {} while (0)
+
+ #endif /* !CONFIG_EDAC_DEBUG */
+
+diff -urNp linux-2.6.28.8/drivers/firmware/dmi_scan.c linux-2.6.28.8/drivers/firmware/dmi_scan.c
+--- linux-2.6.28.8/drivers/firmware/dmi_scan.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/firmware/dmi_scan.c 2009-02-21 09:37:48.000000000 -0500
+@@ -389,11 +389,6 @@ void __init dmi_scan_machine(void)
+ }
+ }
+ else {
+- /*
+- * no iounmap() for that ioremap(); it would be a no-op, but
+- * it's so early in setup that sucker gets confused into doing
+- * what it shouldn't if we actually call it.
+- */
+ p = dmi_ioremap(0xF0000, 0x10000);
+ if (p == NULL)
+ goto error;
+diff -urNp linux-2.6.28.8/drivers/hwmon/fscpos.c linux-2.6.28.8/drivers/hwmon/fscpos.c
+--- linux-2.6.28.8/drivers/hwmon/fscpos.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/hwmon/fscpos.c 2009-02-21 09:37:48.000000000 -0500
+@@ -240,7 +240,6 @@ static ssize_t set_pwm(struct i2c_client
+ unsigned long v = simple_strtoul(buf, NULL, 10);
+
+ /* Range: 0..255 */
+- if (v < 0) v = 0;
+ if (v > 255) v = 255;
+
+ mutex_lock(&data->update_lock);
+diff -urNp linux-2.6.28.8/drivers/hwmon/k8temp.c linux-2.6.28.8/drivers/hwmon/k8temp.c
+--- linux-2.6.28.8/drivers/hwmon/k8temp.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/hwmon/k8temp.c 2009-02-21 09:37:48.000000000 -0500
+@@ -130,7 +130,7 @@ static DEVICE_ATTR(name, S_IRUGO, show_n
+
+ static struct pci_device_id k8temp_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
+- { 0 },
++ { 0, 0, 0, 0, 0, 0, 0 },
+ };
+
+ MODULE_DEVICE_TABLE(pci, k8temp_ids);
+diff -urNp linux-2.6.28.8/drivers/hwmon/sis5595.c linux-2.6.28.8/drivers/hwmon/sis5595.c
+--- linux-2.6.28.8/drivers/hwmon/sis5595.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/hwmon/sis5595.c 2009-02-21 09:37:48.000000000 -0500
+@@ -698,7 +698,7 @@ static struct sis5595_data *sis5595_upda
+
+ static struct pci_device_id sis5595_pci_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, sis5595_pci_ids);
+diff -urNp linux-2.6.28.8/drivers/hwmon/via686a.c linux-2.6.28.8/drivers/hwmon/via686a.c
+--- linux-2.6.28.8/drivers/hwmon/via686a.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/hwmon/via686a.c 2009-02-21 09:37:48.000000000 -0500
+@@ -768,7 +768,7 @@ static struct via686a_data *via686a_upda
+
+ static struct pci_device_id via686a_pci_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, via686a_pci_ids);
+diff -urNp linux-2.6.28.8/drivers/hwmon/vt8231.c linux-2.6.28.8/drivers/hwmon/vt8231.c
+--- linux-2.6.28.8/drivers/hwmon/vt8231.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/hwmon/vt8231.c 2009-02-21 09:37:48.000000000 -0500
+@@ -698,7 +698,7 @@ static struct platform_driver vt8231_dri
+
+ static struct pci_device_id vt8231_pci_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, vt8231_pci_ids);
+diff -urNp linux-2.6.28.8/drivers/hwmon/w83791d.c linux-2.6.28.8/drivers/hwmon/w83791d.c
+--- linux-2.6.28.8/drivers/hwmon/w83791d.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/hwmon/w83791d.c 2009-02-21 09:37:48.000000000 -0500
+@@ -327,8 +327,8 @@ static int w83791d_detect(struct i2c_cli
+ struct i2c_board_info *info);
+ static int w83791d_remove(struct i2c_client *client);
+
+-static int w83791d_read(struct i2c_client *client, u8 register);
+-static int w83791d_write(struct i2c_client *client, u8 register, u8 value);
++static int w83791d_read(struct i2c_client *client, u8 reg);
++static int w83791d_write(struct i2c_client *client, u8 reg, u8 value);
+ static struct w83791d_data *w83791d_update_device(struct device *dev);
+
+ #ifdef DEBUG
+diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c
+--- linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c 2009-02-21 09:37:48.000000000 -0500
+@@ -578,7 +578,7 @@ static struct pci_device_id i801_ids[] =
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_5) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PCH_SMBUS) },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE (pci, i801_ids);
+diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c
+--- linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c 2009-02-21 09:37:48.000000000 -0500
+@@ -123,7 +123,7 @@ static struct dmi_system_id __devinitdat
+ .ident = "IBM",
+ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), },
+ },
+- { },
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, NULL)}, NULL },
+ };
+
+ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
+@@ -424,7 +424,7 @@ static struct pci_device_id piix4_ids[]
+ PCI_DEVICE_ID_SERVERWORKS_CSB6) },
+ { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
+ PCI_DEVICE_ID_SERVERWORKS_HT1000SB) },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE (pci, piix4_ids);
+diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c
+--- linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c 2009-02-21 09:37:48.000000000 -0500
+@@ -472,7 +472,7 @@ static struct i2c_adapter sis630_adapter
+ static struct pci_device_id sis630_ids[] __devinitdata = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC) },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE (pci, sis630_ids);
+diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c
+--- linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c 2009-02-21 09:37:48.000000000 -0500
+@@ -248,7 +248,7 @@ static struct i2c_adapter sis96x_adapter
+
+ static struct pci_device_id sis96x_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_SMBUS) },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE (pci, sis96x_ids);
+diff -urNp linux-2.6.28.8/drivers/ieee1394/dv1394.c linux-2.6.28.8/drivers/ieee1394/dv1394.c
+--- linux-2.6.28.8/drivers/ieee1394/dv1394.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ieee1394/dv1394.c 2009-02-21 09:37:48.000000000 -0500
+@@ -739,7 +739,7 @@ static void frame_prepare(struct video_c
+ based upon DIF section and sequence
+ */
+
+-static void inline
++static inline void
+ frame_put_packet (struct frame *f, struct packet *p)
+ {
+ int section_type = p->data[0] >> 5; /* section type is in bits 5 - 7 */
+@@ -2177,7 +2177,7 @@ static struct ieee1394_device_id dv1394_
+ .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
+ .version = AVC_SW_VERSION_ENTRY & 0xffffff
+ },
+- { }
++ { 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(ieee1394, dv1394_id_table);
+diff -urNp linux-2.6.28.8/drivers/ieee1394/eth1394.c linux-2.6.28.8/drivers/ieee1394/eth1394.c
+--- linux-2.6.28.8/drivers/ieee1394/eth1394.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ieee1394/eth1394.c 2009-02-21 09:37:48.000000000 -0500
+@@ -451,7 +451,7 @@ static struct ieee1394_device_id eth1394
+ .specifier_id = ETHER1394_GASP_SPECIFIER_ID,
+ .version = ETHER1394_GASP_VERSION,
+ },
+- {}
++ { 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(ieee1394, eth1394_id_table);
+diff -urNp linux-2.6.28.8/drivers/ieee1394/hosts.c linux-2.6.28.8/drivers/ieee1394/hosts.c
+--- linux-2.6.28.8/drivers/ieee1394/hosts.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ieee1394/hosts.c 2009-02-21 09:37:48.000000000 -0500
+@@ -78,6 +78,7 @@ static int dummy_isoctl(struct hpsb_iso
+ }
+
+ static struct hpsb_host_driver dummy_driver = {
++ .name = "dummy",
+ .transmit_packet = dummy_transmit_packet,
+ .devctl = dummy_devctl,
+ .isoctl = dummy_isoctl
+diff -urNp linux-2.6.28.8/drivers/ieee1394/ohci1394.c linux-2.6.28.8/drivers/ieee1394/ohci1394.c
+--- linux-2.6.28.8/drivers/ieee1394/ohci1394.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ieee1394/ohci1394.c 2009-02-21 09:37:48.000000000 -0500
+@@ -147,9 +147,9 @@ printk(level "%s: " fmt "\n" , OHCI1394_
+ printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args)
+
+ /* Module Parameters */
+-static int phys_dma = 1;
++static int phys_dma;
+ module_param(phys_dma, int, 0444);
+-MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 1).");
++MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 0).");
+
+ static void dma_trm_tasklet(unsigned long data);
+ static void dma_trm_reset(struct dma_trm_ctx *d);
+@@ -3437,7 +3437,7 @@ static struct pci_device_id ohci1394_pci
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+- { 0, },
++ { 0, 0, 0, 0, 0, 0, 0 },
+ };
+
+ MODULE_DEVICE_TABLE(pci, ohci1394_pci_tbl);
+diff -urNp linux-2.6.28.8/drivers/ieee1394/raw1394.c linux-2.6.28.8/drivers/ieee1394/raw1394.c
+--- linux-2.6.28.8/drivers/ieee1394/raw1394.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ieee1394/raw1394.c 2009-02-21 09:37:48.000000000 -0500
+@@ -2995,7 +2995,7 @@ static struct ieee1394_device_id raw1394
+ .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION,
+ .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff,
+ .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff},
+- {}
++ { 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(ieee1394, raw1394_id_table);
+diff -urNp linux-2.6.28.8/drivers/ieee1394/sbp2.c linux-2.6.28.8/drivers/ieee1394/sbp2.c
+--- linux-2.6.28.8/drivers/ieee1394/sbp2.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ieee1394/sbp2.c 2009-02-21 09:37:48.000000000 -0500
+@@ -290,7 +290,7 @@ static struct ieee1394_device_id sbp2_id
+ .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION,
+ .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff,
+ .version = SBP2_SW_VERSION_ENTRY & 0xffffff},
+- {}
++ { 0, 0, 0, 0, 0, 0 }
+ };
+ MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table);
+
+@@ -2110,7 +2110,7 @@ MODULE_DESCRIPTION("IEEE-1394 SBP-2 prot
+ MODULE_SUPPORTED_DEVICE(SBP2_DEVICE_NAME);
+ MODULE_LICENSE("GPL");
+
+-static int sbp2_module_init(void)
++static int __init sbp2_module_init(void)
+ {
+ int ret;
+
+diff -urNp linux-2.6.28.8/drivers/ieee1394/video1394.c linux-2.6.28.8/drivers/ieee1394/video1394.c
+--- linux-2.6.28.8/drivers/ieee1394/video1394.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/ieee1394/video1394.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1310,7 +1310,7 @@ static struct ieee1394_device_id video13
+ .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff,
+ .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff
+ },
+- { }
++ { 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(ieee1394, video1394_id_table);
+diff -urNp linux-2.6.28.8/drivers/input/keyboard/atkbd.c linux-2.6.28.8/drivers/input/keyboard/atkbd.c
+--- linux-2.6.28.8/drivers/input/keyboard/atkbd.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/input/keyboard/atkbd.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1164,7 +1164,7 @@ static struct serio_device_id atkbd_seri
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+- { 0 }
++ { 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
+diff -urNp linux-2.6.28.8/drivers/input/mouse/lifebook.c linux-2.6.28.8/drivers/input/mouse/lifebook.c
+--- linux-2.6.28.8/drivers/input/mouse/lifebook.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/input/mouse/lifebook.c 2009-02-21 09:37:48.000000000 -0500
+@@ -110,7 +110,7 @@ static const struct dmi_system_id lifebo
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}
+ };
+
+ static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
+diff -urNp linux-2.6.28.8/drivers/input/mouse/psmouse-base.c linux-2.6.28.8/drivers/input/mouse/psmouse-base.c
+--- linux-2.6.28.8/drivers/input/mouse/psmouse-base.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/input/mouse/psmouse-base.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1378,7 +1378,7 @@ static struct serio_device_id psmouse_se
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+- { 0 }
++ { 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(serio, psmouse_serio_ids);
+diff -urNp linux-2.6.28.8/drivers/input/mouse/synaptics.c linux-2.6.28.8/drivers/input/mouse/synaptics.c
+--- linux-2.6.28.8/drivers/input/mouse/synaptics.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/input/mouse/synaptics.c 2009-02-21 09:37:48.000000000 -0500
+@@ -417,7 +417,7 @@ static void synaptics_process_packet(str
+ break;
+ case 2:
+ if (SYN_MODEL_PEN(priv->model_id))
+- ; /* Nothing, treat a pen as a single finger */
++ break; /* Nothing, treat a pen as a single finger */
+ break;
+ case 4 ... 15:
+ if (SYN_CAP_PALMDETECT(priv->capabilities))
+@@ -624,7 +624,7 @@ static const struct dmi_system_id toshib
+ DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+ #endif
+
+diff -urNp linux-2.6.28.8/drivers/input/mousedev.c linux-2.6.28.8/drivers/input/mousedev.c
+--- linux-2.6.28.8/drivers/input/mousedev.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/input/mousedev.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1063,7 +1063,7 @@ static struct input_handler mousedev_han
+
+ #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+ static struct miscdevice psaux_mouse = {
+- PSMOUSE_MINOR, "psaux", &mousedev_fops
++ PSMOUSE_MINOR, "psaux", &mousedev_fops, {NULL, NULL}, NULL, NULL
+ };
+ static int psaux_registered;
+ #endif
+diff -urNp linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h
+--- linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h 2009-02-21 09:37:48.000000000 -0500
+@@ -143,7 +143,7 @@ static struct dmi_system_id __initdata i
+ DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+
+ /*
+@@ -351,7 +351,7 @@ static struct dmi_system_id __initdata i
+ DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+
+ #ifdef CONFIG_PNP
+@@ -363,7 +363,7 @@ static struct dmi_system_id __initdata i
+ DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+ #endif
+
+@@ -430,7 +430,7 @@ static struct dmi_system_id __initdata i
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
+ },
+ },
+- { }
++ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL }
+ };
+
+ #endif /* CONFIG_X86 */
+diff -urNp linux-2.6.28.8/drivers/input/serio/serio_raw.c linux-2.6.28.8/drivers/input/serio/serio_raw.c
+--- linux-2.6.28.8/drivers/input/serio/serio_raw.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/input/serio/serio_raw.c 2009-02-21 09:37:48.000000000 -0500
+@@ -378,7 +378,7 @@ static struct serio_device_id serio_raw_
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+- { 0 }
++ { 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids);
+diff -urNp linux-2.6.28.8/drivers/lguest/core.c linux-2.6.28.8/drivers/lguest/core.c
+--- linux-2.6.28.8/drivers/lguest/core.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/lguest/core.c 2009-03-07 10:28:24.000000000 -0500
+@@ -80,9 +80,17 @@ static __init int map_switcher(void)
+ * (SWITCHER_ADDR). We might not get it in theory, but in practice
+ * it's worked so far. The end address needs +1 because __get_vm_area
+ * allocates an extra guard page, so we need space for that. */
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
++ VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR
++ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
++#else
+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
+ VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR
+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
++#endif
++
+ if (!switcher_vma) {
+ err = -ENOMEM;
+ printk("lguest: could not map switcher pages high\n");
+diff -urNp linux-2.6.28.8/drivers/md/bitmap.c linux-2.6.28.8/drivers/md/bitmap.c
+--- linux-2.6.28.8/drivers/md/bitmap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/md/bitmap.c 2009-02-21 09:37:48.000000000 -0500
+@@ -57,7 +57,7 @@
+ # if DEBUG > 0
+ # define PRINTK(x...) printk(KERN_DEBUG x)
+ # else
+-# define PRINTK(x...)
++# define PRINTK(x...) do {} while (0)
+ # endif
+ #endif
+
+diff -urNp linux-2.6.28.8/drivers/mtd/devices/doc2000.c linux-2.6.28.8/drivers/mtd/devices/doc2000.c
+--- linux-2.6.28.8/drivers/mtd/devices/doc2000.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/mtd/devices/doc2000.c 2009-02-21 09:37:48.000000000 -0500
+@@ -777,7 +777,7 @@ static int doc_write(struct mtd_info *mt
+
+ /* The ECC will not be calculated correctly if less than 512 is written */
+ /* DBB-
+- if (len != 0x200 && eccbuf)
++ if (len != 0x200)
+ printk(KERN_WARNING
+ "ECC needs a full sector write (adr: %lx size %lx)\n",
+ (long) to, (long) len);
+diff -urNp linux-2.6.28.8/drivers/mtd/devices/doc2001.c linux-2.6.28.8/drivers/mtd/devices/doc2001.c
+--- linux-2.6.28.8/drivers/mtd/devices/doc2001.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/mtd/devices/doc2001.c 2009-02-21 09:37:48.000000000 -0500
+@@ -396,6 +396,8 @@ static int doc_read (struct mtd_info *mt
+ /* Don't allow read past end of device */
+ if (from >= this->totlen)
+ return -EINVAL;
++ if (!len)
++ return -EINVAL;
+
+ /* Don't allow a single read to cross a 512-byte block boundary */
+ if (from + len > ((from | 0x1ff) + 1))
+diff -urNp linux-2.6.28.8/drivers/mtd/devices/slram.c linux-2.6.28.8/drivers/mtd/devices/slram.c
+--- linux-2.6.28.8/drivers/mtd/devices/slram.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/mtd/devices/slram.c 2009-02-21 09:37:48.000000000 -0500
+@@ -273,7 +273,7 @@ static int parse_cmdline(char *devname,
+ }
+ T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n",
+ devname, devstart, devlength);
+- if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) {
++ if (devlength % SLRAM_BLK_SZ != 0) {
+ E("slram: Illegal start / length parameter.\n");
+ return(-EINVAL);
+ }
+diff -urNp linux-2.6.28.8/drivers/mtd/ubi/build.c linux-2.6.28.8/drivers/mtd/ubi/build.c
+--- linux-2.6.28.8/drivers/mtd/ubi/build.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/mtd/ubi/build.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1104,7 +1104,7 @@ static int __init bytes_str_to_int(const
+ unsigned long result;
+
+ result = simple_strtoul(str, &endp, 0);
+- if (str == endp || result < 0) {
++ if (str == endp) {
+ printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n",
+ str);
+ return -EINVAL;
+diff -urNp linux-2.6.28.8/drivers/net/eepro100.c linux-2.6.28.8/drivers/net/eepro100.c
+--- linux-2.6.28.8/drivers/net/eepro100.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/net/eepro100.c 2009-02-21 09:37:48.000000000 -0500
+@@ -47,7 +47,7 @@ static int rxdmacount /* = 0 */;
+ # define rx_align(skb) skb_reserve((skb), 2)
+ # define RxFD_ALIGNMENT __attribute__ ((aligned (2), packed))
+ #else
+-# define rx_align(skb)
++# define rx_align(skb) do {} while (0)
+ # define RxFD_ALIGNMENT
+ #endif
+
+@@ -2334,33 +2334,33 @@ static void __devexit eepro100_remove_on
+ }
+
+ static struct pci_device_id eepro100_pci_tbl[] = {
+- { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, },
+- { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, },
+- { 0,}
++ { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+ MODULE_DEVICE_TABLE(pci, eepro100_pci_tbl);
+
+diff -urNp linux-2.6.28.8/drivers/net/irda/vlsi_ir.c linux-2.6.28.8/drivers/net/irda/vlsi_ir.c
+--- linux-2.6.28.8/drivers/net/irda/vlsi_ir.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/net/irda/vlsi_ir.c 2009-02-21 09:37:48.000000000 -0500
+@@ -906,13 +906,12 @@ static int vlsi_hard_start_xmit(struct s
+ /* no race - tx-ring already empty */
+ vlsi_set_baud(idev, iobase);
+ netif_wake_queue(ndev);
+- }
+- else
+- ;
++ } else {
+ /* keep the speed change pending like it would
+ * for any len>0 packet. tx completion interrupt
+ * will apply it when the tx ring becomes empty.
+ */
++ }
+ spin_unlock_irqrestore(&idev->lock, flags);
+ dev_kfree_skb_any(skb);
+ return 0;
+diff -urNp linux-2.6.28.8/drivers/net/pcnet32.c linux-2.6.28.8/drivers/net/pcnet32.c
+--- linux-2.6.28.8/drivers/net/pcnet32.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/net/pcnet32.c 2009-02-21 09:37:48.000000000 -0500
+@@ -78,7 +78,7 @@ static int cards_found;
+ /*
+ * VLB I/O addresses
+ */
+-static unsigned int pcnet32_portlist[] __initdata =
++static unsigned int pcnet32_portlist[] __devinitdata =
+ { 0x300, 0x320, 0x340, 0x360, 0 };
+
+ static int pcnet32_debug = 0;
+diff -urNp linux-2.6.28.8/drivers/net/tg3.h linux-2.6.28.8/drivers/net/tg3.h
+--- linux-2.6.28.8/drivers/net/tg3.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/net/tg3.h 2009-02-21 09:37:48.000000000 -0500
+@@ -102,6 +102,7 @@
+ #define CHIPREV_ID_5750_A0 0x4000
+ #define CHIPREV_ID_5750_A1 0x4001
+ #define CHIPREV_ID_5750_A3 0x4003
++#define CHIPREV_ID_5750_C1 0x4201
+ #define CHIPREV_ID_5750_C2 0x4202
+ #define CHIPREV_ID_5752_A0_HW 0x5000
+ #define CHIPREV_ID_5752_A0 0x6000
+diff -urNp linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c
+--- linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-21 09:37:48.000000000 -0500
+@@ -785,7 +785,7 @@ static int iwl3945_send_cmd_sync(struct
+ IWL_ERROR("Error: Response NULL in '%s'\n",
+ get_cmd_string(cmd->id));
+ ret = -EIO;
+- goto out;
++ goto cancel;
+ }
+
+ ret = 0;
+diff -urNp linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c
+--- linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-21 09:37:48.000000000 -0500
+@@ -425,9 +425,13 @@ static u32 store_HRT (void __iomem *rom_
+
+ void compaq_nvram_init (void __iomem *rom_start)
+ {
++
++#ifndef CONFIG_PAX_KERNEXEC
+ if (rom_start) {
+ compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
+ }
++#endif
++
+ dbg("int15 entry = %p\n", compaq_int15_entry_point);
+
+ /* initialize our int15 lock */
+diff -urNp linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c
+--- linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c 2009-02-21 09:37:48.000000000 -0500
+@@ -59,7 +59,7 @@ static struct pcie_port_service_id aer_i
+ .port_type = PCIE_RC_PORT,
+ .service_type = PCIE_PORT_SERVICE_AER,
+ },
+- { /* end: all zeroes */ }
++ { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ static struct pci_error_handlers aer_error_handlers = {
+diff -urNp linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c
+--- linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c 2009-03-07 10:29:51.000000000 -0500
+@@ -667,7 +667,7 @@ static void aer_isr_one_error(struct pci
+ struct aer_err_source *e_src)
+ {
+ struct device *s_device;
+- struct aer_err_info e_info = {0, 0, 0,};
++ struct aer_err_info e_info = {0, 0, 0, {0, 0, 0, 0}};
+ int i;
+ u16 id;
+
+diff -urNp linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c
+--- linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c 2009-03-07 10:29:51.000000000 -0500
+@@ -263,7 +263,7 @@ static void pcie_portdrv_err_resume(stru
+ static const struct pci_device_id port_pci_ids[] = { {
+ /* handle any PCI-Express port */
+ PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0),
+- }, { /* end: all zeroes */ }
++ }, { 0, 0, 0, 0, 0, 0, 0 }
+ };
+ MODULE_DEVICE_TABLE(pci, port_pci_ids);
+
+diff -urNp linux-2.6.28.8/drivers/pci/proc.c linux-2.6.28.8/drivers/pci/proc.c
+--- linux-2.6.28.8/drivers/pci/proc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pci/proc.c 2009-02-21 09:37:48.000000000 -0500
+@@ -470,7 +470,16 @@ static const struct file_operations proc
+ static int __init pci_proc_init(void)
+ {
+ struct pci_dev *dev = NULL;
++
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
++#endif
++#else
+ proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
++#endif
+ proc_create("devices", 0, proc_bus_pci_dir,
+ &proc_bus_pci_dev_operations);
+ proc_initialized = 1;
+diff -urNp linux-2.6.28.8/drivers/pcmcia/ti113x.h linux-2.6.28.8/drivers/pcmcia/ti113x.h
+--- linux-2.6.28.8/drivers/pcmcia/ti113x.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pcmcia/ti113x.h 2009-02-21 09:37:48.000000000 -0500
+@@ -903,7 +903,7 @@ static struct pci_device_id ene_tune_tbl
+ DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID,
+ ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE),
+
+- {}
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus)
+diff -urNp linux-2.6.28.8/drivers/pcmcia/yenta_socket.c linux-2.6.28.8/drivers/pcmcia/yenta_socket.c
+--- linux-2.6.28.8/drivers/pcmcia/yenta_socket.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pcmcia/yenta_socket.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1366,7 +1366,7 @@ static struct pci_device_id yenta_table
+
+ /* match any cardbus bridge */
+ CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
+- { /* all zeroes */ }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+ MODULE_DEVICE_TABLE(pci, yenta_table);
+
+diff -urNp linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c
+--- linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c 2009-02-21 09:37:48.000000000 -0500
+@@ -60,7 +60,7 @@ set_base(gdt[(selname) >> 3], (u32)(addr
+ set_limit(gdt[(selname) >> 3], size); \
+ } while(0)
+
+-static struct desc_struct bad_bios_desc;
++static struct desc_struct bad_bios_desc __read_only;
+
+ /*
+ * At some point we want to use this stack frame pointer to unwind
+@@ -87,6 +87,10 @@ static inline u16 call_pnp_bios(u16 func
+ struct desc_struct save_desc_40;
+ int cpu;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ /*
+ * PnP BIOSes are generally not terribly re-entrant.
+ * Also, don't rely on them to save everything correctly.
+@@ -96,8 +100,17 @@ static inline u16 call_pnp_bios(u16 func
+
+ cpu = get_cpu();
+ save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ /* On some boxes IRQ's during PnP BIOS calls are deadly. */
+ spin_lock_irqsave(&pnp_bios_lock, flags);
+
+@@ -134,7 +147,16 @@ static inline u16 call_pnp_bios(u16 func
+ :"memory");
+ spin_unlock_irqrestore(&pnp_bios_lock, flags);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ put_cpu();
+
+ /* If we get here and this is set then the PnP BIOS faulted on us. */
+@@ -468,16 +490,24 @@ int pnp_bios_read_escd(char *data, u32 n
+ return status;
+ }
+
+-void pnpbios_calls_init(union pnp_bios_install_struct *header)
++void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
+ {
+ int i;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ spin_lock_init(&pnp_bios_lock);
+ pnp_bios_callpoint.offset = header->fields.pm16offset;
+ pnp_bios_callpoint.segment = PNP_CS16;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ bad_bios_desc.a = 0;
+- bad_bios_desc.b = 0x00409200;
++ bad_bios_desc.b = 0x00409300;
+
+ set_base(bad_bios_desc, __va((unsigned long)0x40 << 4));
+ _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4));
+@@ -491,4 +521,9 @@ void pnpbios_calls_init(union pnp_bios_i
+ set_base(gdt[GDT_ENTRY_PNPBIOS_DS],
+ __va(header->fields.pm16dseg));
+ }
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ }
+diff -urNp linux-2.6.28.8/drivers/pnp/quirks.c linux-2.6.28.8/drivers/pnp/quirks.c
+--- linux-2.6.28.8/drivers/pnp/quirks.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pnp/quirks.c 2009-02-21 09:37:48.000000000 -0500
+@@ -327,7 +327,7 @@ static struct pnp_fixup pnp_fixups[] = {
+ /* PnP resources that might overlap PCI BARs */
+ {"PNP0c01", quirk_system_pci_resources},
+ {"PNP0c02", quirk_system_pci_resources},
+- {""}
++ {"", NULL}
+ };
+
+ void pnp_fixup_device(struct pnp_dev *dev)
+diff -urNp linux-2.6.28.8/drivers/pnp/resource.c linux-2.6.28.8/drivers/pnp/resource.c
+--- linux-2.6.28.8/drivers/pnp/resource.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/pnp/resource.c 2009-02-21 09:37:48.000000000 -0500
+@@ -355,7 +355,7 @@ int pnp_check_irq(struct pnp_dev *dev, s
+ return 1;
+
+ /* check if the resource is valid */
+- if (*irq < 0 || *irq > 15)
++ if (*irq > 15)
+ return 0;
+
+ /* check if the resource is reserved */
+@@ -419,7 +419,7 @@ int pnp_check_dma(struct pnp_dev *dev, s
+ return 1;
+
+ /* check if the resource is valid */
+- if (*dma < 0 || *dma == 4 || *dma > 7)
++ if (*dma == 4 || *dma > 7)
+ return 0;
+
+ /* check if the resource is reserved */
+diff -urNp linux-2.6.28.8/drivers/scsi/scsi_logging.h linux-2.6.28.8/drivers/scsi/scsi_logging.h
+--- linux-2.6.28.8/drivers/scsi/scsi_logging.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/scsi/scsi_logging.h 2009-02-21 09:37:48.000000000 -0500
+@@ -51,7 +51,7 @@ do { \
+ } while (0); \
+ } while (0)
+ #else
+-#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD)
++#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) do {} while (0)
+ #endif /* CONFIG_SCSI_LOGGING */
+
+ /*
+diff -urNp linux-2.6.28.8/drivers/serial/8250_pci.c linux-2.6.28.8/drivers/serial/8250_pci.c
+--- linux-2.6.28.8/drivers/serial/8250_pci.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/drivers/serial/8250_pci.c 2009-03-07 10:29:51.000000000 -0500
+@@ -3138,7 +3138,7 @@ static struct pci_device_id serial_pci_t
+ PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_COMMUNICATION_MULTISERIAL << 8,
+ 0xffff00, pbn_default },
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ static struct pci_driver serial_pci_driver = {
+diff -urNp linux-2.6.28.8/drivers/usb/class/cdc-acm.c linux-2.6.28.8/drivers/usb/class/cdc-acm.c
+--- linux-2.6.28.8/drivers/usb/class/cdc-acm.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/drivers/usb/class/cdc-acm.c 2009-03-07 10:29:51.000000000 -0500
+@@ -1388,7 +1388,7 @@ static struct usb_device_id acm_ids[] =
+ USB_CDC_ACM_PROTO_AT_CDMA) },
+
+ /* NOTE: COMM/ACM/0xff is likely MSFT RNDIS ... NOT a modem!! */
+- { }
++ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE (usb, acm_ids);
+diff -urNp linux-2.6.28.8/drivers/usb/class/usblp.c linux-2.6.28.8/drivers/usb/class/usblp.c
+--- linux-2.6.28.8/drivers/usb/class/usblp.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/usb/class/usblp.c 2009-02-21 09:37:48.000000000 -0500
+@@ -227,7 +227,7 @@ static const struct quirk_printer_struct
+ { 0x0409, 0xf1be, USBLP_QUIRK_BIDIR }, /* NEC Picty800 (HP OEM) */
+ { 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut <kernel@zut.de> */
+ { 0x04b8, 0x0202, USBLP_QUIRK_BAD_CLASS }, /* Seiko Epson Receipt Printer M129C */
+- { 0, 0 }
++ { 0, 0, 0 }
+ };
+
+ static int usblp_wwait(struct usblp *usblp, int nonblock);
+@@ -1402,7 +1402,7 @@ static struct usb_device_id usblp_ids []
+ { USB_INTERFACE_INFO(7, 1, 2) },
+ { USB_INTERFACE_INFO(7, 1, 3) },
+ { USB_DEVICE(0x04b8, 0x0202) }, /* Seiko Epson Receipt Printer M129C */
+- { } /* Terminating entry */
++ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */
+ };
+
+ MODULE_DEVICE_TABLE (usb, usblp_ids);
+diff -urNp linux-2.6.28.8/drivers/usb/core/hub.c linux-2.6.28.8/drivers/usb/core/hub.c
+--- linux-2.6.28.8/drivers/usb/core/hub.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/usb/core/hub.c 2009-02-21 09:37:48.000000000 -0500
+@@ -3194,7 +3194,7 @@ static struct usb_device_id hub_id_table
+ .bDeviceClass = USB_CLASS_HUB},
+ { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
+ .bInterfaceClass = USB_CLASS_HUB},
+- { } /* Terminating entry */
++ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */
+ };
+
+ MODULE_DEVICE_TABLE (usb, hub_id_table);
+diff -urNp linux-2.6.28.8/drivers/usb/host/ehci-pci.c linux-2.6.28.8/drivers/usb/host/ehci-pci.c
+--- linux-2.6.28.8/drivers/usb/host/ehci-pci.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/usb/host/ehci-pci.c 2009-02-21 09:37:48.000000000 -0500
+@@ -414,7 +414,7 @@ static const struct pci_device_id pci_id
+ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0),
+ .driver_data = (unsigned long) &ehci_pci_hc_driver,
+ },
+- { /* end: all zeroes */ }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+ MODULE_DEVICE_TABLE(pci, pci_ids);
+
+diff -urNp linux-2.6.28.8/drivers/usb/host/uhci-hcd.c linux-2.6.28.8/drivers/usb/host/uhci-hcd.c
+--- linux-2.6.28.8/drivers/usb/host/uhci-hcd.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/usb/host/uhci-hcd.c 2009-02-21 09:37:48.000000000 -0500
+@@ -927,7 +927,7 @@ static const struct pci_device_id uhci_p
+ /* handle any USB UHCI controller */
+ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0),
+ .driver_data = (unsigned long) &uhci_driver,
+- }, { /* end: all zeroes */ }
++ }, { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, uhci_pci_ids);
+diff -urNp linux-2.6.28.8/drivers/usb/storage/debug.h linux-2.6.28.8/drivers/usb/storage/debug.h
+--- linux-2.6.28.8/drivers/usb/storage/debug.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/usb/storage/debug.h 2009-02-21 09:37:48.000000000 -0500
+@@ -54,9 +54,9 @@ void usb_stor_show_sense( unsigned char
+ #define US_DEBUGPX(x...) printk( x )
+ #define US_DEBUG(x) x
+ #else
+-#define US_DEBUGP(x...)
+-#define US_DEBUGPX(x...)
+-#define US_DEBUG(x)
++#define US_DEBUGP(x...) do {} while (0)
++#define US_DEBUGPX(x...) do {} while (0)
++#define US_DEBUG(x) do {} while (0)
+ #endif
+
+ #endif
+diff -urNp linux-2.6.28.8/drivers/usb/storage/usb.c linux-2.6.28.8/drivers/usb/storage/usb.c
+--- linux-2.6.28.8/drivers/usb/storage/usb.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/usb/storage/usb.c 2009-02-21 09:37:48.000000000 -0500
+@@ -139,7 +139,7 @@ static struct usb_device_id storage_usb_
+ #undef COMPLIANT_DEV
+ #undef USUAL_DEV
+ /* Terminating entry */
+- { }
++ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE (usb, storage_usb_ids);
+@@ -182,7 +182,7 @@ static struct us_unusual_dev us_unusual_
+ # undef USUAL_DEV
+
+ /* Terminating entry */
+- { NULL }
++ { NULL, NULL, 0, 0, NULL }
+ };
+
+
+diff -urNp linux-2.6.28.8/drivers/uwb/wlp/messages.c linux-2.6.28.8/drivers/uwb/wlp/messages.c
+--- linux-2.6.28.8/drivers/uwb/wlp/messages.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/uwb/wlp/messages.c 2009-02-21 09:37:48.000000000 -0500
+@@ -988,7 +988,7 @@ int wlp_parse_f0(struct wlp *wlp, struct
+ size_t len = skb->len;
+ size_t used;
+ ssize_t result;
+- struct wlp_nonce enonce, rnonce;
++ struct wlp_nonce enonce = {{0}}, rnonce = {{0}};
+ enum wlp_assc_error assc_err;
+ char enonce_buf[WLP_WSS_NONCE_STRSIZE];
+ char rnonce_buf[WLP_WSS_NONCE_STRSIZE];
+diff -urNp linux-2.6.28.8/drivers/video/fbcmap.c linux-2.6.28.8/drivers/video/fbcmap.c
+--- linux-2.6.28.8/drivers/video/fbcmap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/fbcmap.c 2009-02-21 09:37:48.000000000 -0500
+@@ -250,8 +250,7 @@ int fb_set_user_cmap(struct fb_cmap_user
+ int rc, size = cmap->len * sizeof(u16);
+ struct fb_cmap umap;
+
+- if (cmap->start < 0 || (!info->fbops->fb_setcolreg &&
+- !info->fbops->fb_setcmap))
++ if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap)
+ return -EINVAL;
+
+ memset(&umap, 0, sizeof(struct fb_cmap));
+diff -urNp linux-2.6.28.8/drivers/video/fbmem.c linux-2.6.28.8/drivers/video/fbmem.c
+--- linux-2.6.28.8/drivers/video/fbmem.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/fbmem.c 2009-02-21 09:37:48.000000000 -0500
+@@ -393,7 +393,7 @@ static void fb_do_show_logo(struct fb_in
+ image->dx += image->width + 8;
+ }
+ } else if (rotate == FB_ROTATE_UD) {
+- for (x = 0; x < num && image->dx >= 0; x++) {
++ for (x = 0; x < num && (__s32)image->dx >= 0; x++) {
+ info->fbops->fb_imageblit(info, image);
+ image->dx -= image->width + 8;
+ }
+@@ -405,7 +405,7 @@ static void fb_do_show_logo(struct fb_in
+ image->dy += image->height + 8;
+ }
+ } else if (rotate == FB_ROTATE_CCW) {
+- for (x = 0; x < num && image->dy >= 0; x++) {
++ for (x = 0; x < num && (__s32)image->dy >= 0; x++) {
+ info->fbops->fb_imageblit(info, image);
+ image->dy -= image->height + 8;
+ }
+@@ -1090,7 +1090,7 @@ static long do_fb_ioctl(struct fb_info *
+ ret = -EINVAL;
+ break;
+ }
+- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) {
++ if (con2fb.framebuffer >= FB_MAX) {
+ ret = -EINVAL;
+ break;
+ }
+diff -urNp linux-2.6.28.8/drivers/video/fbmon.c linux-2.6.28.8/drivers/video/fbmon.c
+--- linux-2.6.28.8/drivers/video/fbmon.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/fbmon.c 2009-02-21 09:37:48.000000000 -0500
+@@ -45,7 +45,7 @@
+ #ifdef DEBUG
+ #define DPRINTK(fmt, args...) printk(fmt,## args)
+ #else
+-#define DPRINTK(fmt, args...)
++#define DPRINTK(fmt, args...) do {} while (0)
+ #endif
+
+ #define FBMON_FIX_HEADER 1
+diff -urNp linux-2.6.28.8/drivers/video/i810/i810_accel.c linux-2.6.28.8/drivers/video/i810/i810_accel.c
+--- linux-2.6.28.8/drivers/video/i810/i810_accel.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/i810/i810_accel.c 2009-02-21 09:37:48.000000000 -0500
+@@ -73,6 +73,7 @@ static inline int wait_for_space(struct
+ }
+ }
+ printk("ringbuffer lockup!!!\n");
++ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
+ i810_report_error(mmio);
+ par->dev_flags |= LOCKUP;
+ info->pixmap.scan_align = 1;
+diff -urNp linux-2.6.28.8/drivers/video/i810/i810_main.c linux-2.6.28.8/drivers/video/i810/i810_main.c
+--- linux-2.6.28.8/drivers/video/i810/i810_main.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/i810/i810_main.c 2009-03-07 14:10:58.000000000 -0500
+@@ -120,7 +120,7 @@ static struct pci_device_id i810fb_pci_t
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
+- { 0 },
++ { 0, 0, 0, 0, 0, 0, 0 },
+ };
+
+ static struct pci_driver i810fb_driver = {
+diff -urNp linux-2.6.28.8/drivers/video/modedb.c linux-2.6.28.8/drivers/video/modedb.c
+--- linux-2.6.28.8/drivers/video/modedb.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/modedb.c 2009-02-21 09:37:48.000000000 -0500
+@@ -38,232 +38,232 @@ static const struct fb_videomode modedb[
+ {
+ /* 640x400 @ 70 Hz, 31.5 kHz hsync */
+ NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 640x480 @ 60 Hz, 31.5 kHz hsync */
+ NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 800x600 @ 56 Hz, 35.15 kHz hsync */
+ NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
+ NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
+- 0, FB_VMODE_INTERLACED
++ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 640x400 @ 85 Hz, 37.86 kHz hsync */
+ NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
+- FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 640x480 @ 72 Hz, 36.5 kHz hsync */
+ NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 640x480 @ 75 Hz, 37.50 kHz hsync */
+ NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 800x600 @ 60 Hz, 37.8 kHz hsync */
+ NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 640x480 @ 85 Hz, 43.27 kHz hsync */
+ NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
+ NULL, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
+- 0, FB_VMODE_INTERLACED
++ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 800x600 @ 72 Hz, 48.0 kHz hsync */
+ NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1024x768 @ 60 Hz, 48.4 kHz hsync */
+ NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 640x480 @ 100 Hz, 53.01 kHz hsync */
+ NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1152x864 @ 60 Hz, 53.5 kHz hsync */
+ NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 800x600 @ 85 Hz, 55.84 kHz hsync */
+ NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1024x768 @ 70 Hz, 56.5 kHz hsync */
+ NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
+ NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
+- 0, FB_VMODE_INTERLACED
++ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 800x600 @ 100 Hz, 64.02 kHz hsync */
+ NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1024x768 @ 76 Hz, 62.5 kHz hsync */
+ NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1152x864 @ 70 Hz, 62.4 kHz hsync */
+ NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
+ NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1400x1050 @ 60Hz, 63.9 kHz hsync */
+ NULL, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
+ NULL, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
+ NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1024x768 @ 85 Hz, 70.24 kHz hsync */
+ NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1152x864 @ 78 Hz, 70.8 kHz hsync */
+ NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
+ NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1600x1200 @ 60Hz, 75.00 kHz hsync */
+ NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1152x864 @ 84 Hz, 76.0 kHz hsync */
+ NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
+ NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1024x768 @ 100Hz, 80.21 kHz hsync */
+ NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
+ NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
+ NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1152x864 @ 100 Hz, 89.62 kHz hsync */
+ NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
+ NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
+ NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
+ NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
+ NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
+ NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1800x1440 @ 64Hz, 96.15 kHz hsync */
+ NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1800x1440 @ 70Hz, 104.52 kHz hsync */
+ NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 512x384 @ 78 Hz, 31.50 kHz hsync */
+ NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 512x384 @ 85 Hz, 34.38 kHz hsync */
+ NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
+ NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
+ NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 320x240 @ 72 Hz, 36.5 kHz hsync */
+ NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
+ NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 400x300 @ 60 Hz, 37.8 kHz hsync */
+ NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 400x300 @ 72 Hz, 48.0 kHz hsync */
+ NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
+ NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 480x300 @ 60 Hz, 37.8 kHz hsync */
+ NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 480x300 @ 63 Hz, 39.6 kHz hsync */
+ NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 480x300 @ 72 Hz, 48.0 kHz hsync */
+ NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
+- 0, FB_VMODE_DOUBLE
++ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */
+ NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+- FB_VMODE_NONINTERLACED
++ FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
+ NULL, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6,
+- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
++ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
+ NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ }, {
+ /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */
+ NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3,
+- 0, FB_VMODE_NONINTERLACED
++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN
+ },
+ };
+
+diff -urNp linux-2.6.28.8/drivers/video/uvesafb.c linux-2.6.28.8/drivers/video/uvesafb.c
+--- linux-2.6.28.8/drivers/video/uvesafb.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/uvesafb.c 2009-02-21 09:37:48.000000000 -0500
+@@ -18,6 +18,7 @@
+ #include <linux/fb.h>
+ #include <linux/io.h>
+ #include <linux/mutex.h>
++#include <linux/moduleloader.h>
+ #include <video/edid.h>
+ #include <video/uvesafb.h>
+ #ifdef CONFIG_X86
+@@ -117,7 +118,7 @@ static int uvesafb_helper_start(void)
+ NULL,
+ };
+
+- return call_usermodehelper(v86d_path, argv, envp, 1);
++ return call_usermodehelper(v86d_path, argv, envp, UMH_WAIT_PROC);
+ }
+
+ /*
+@@ -574,10 +575,34 @@ static int __devinit uvesafb_vbe_getpmi(
+ if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
+ par->pmi_setpal = par->ypan = 0;
+ } else {
++
++#ifdef CONFIG_PAX_KERNEXEC
++#ifdef CONFIG_MODULES
++ unsigned long cr0;
++
++ par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
++#endif
++ if (!par->pmi_code) {
++ par->pmi_setpal = par->ypan = 0;
++ return 0;
++ }
++#endif
++
+ par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
+ + task->t.regs.edi);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ pax_open_kernel(cr0);
++ memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
++ pax_close_kernel(cr0);
++
++ par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
++ par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
++#else
+ par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
+ par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
++#endif
++
+ printk(KERN_INFO "uvesafb: protected mode interface info at "
+ "%04x:%04x\n",
+ (u16)task->t.regs.es, (u16)task->t.regs.edi);
+@@ -1832,6 +1857,11 @@ out:
+ if (par->vbe_modes)
+ kfree(par->vbe_modes);
+
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ if (par->pmi_code)
++ module_free_exec(NULL, par->pmi_code);
++#endif
++
+ framebuffer_release(info);
+ return err;
+ }
+@@ -1858,6 +1888,12 @@ static int uvesafb_remove(struct platfor
+ kfree(par->vbe_state_orig);
+ if (par->vbe_state_saved)
+ kfree(par->vbe_state_saved);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ if (par->pmi_code)
++ module_free_exec(NULL, par->pmi_code);
++#endif
++
+ }
+
+ framebuffer_release(info);
+diff -urNp linux-2.6.28.8/drivers/video/vesafb.c linux-2.6.28.8/drivers/video/vesafb.c
+--- linux-2.6.28.8/drivers/video/vesafb.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/drivers/video/vesafb.c 2009-02-21 09:37:48.000000000 -0500
+@@ -9,6 +9,7 @@
+ */
+
+ #include <linux/module.h>
++#include <linux/moduleloader.h>
+ #include <linux/kernel.h>
+ #include <linux/errno.h>
+ #include <linux/string.h>
+@@ -53,8 +54,8 @@ static int vram_remap __initdata; /*
+ static int vram_total __initdata; /* Set total amount of memory */
+ static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
+ static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
+-static void (*pmi_start)(void) __read_mostly;
+-static void (*pmi_pal) (void) __read_mostly;
++static void (*pmi_start)(void) __read_only;
++static void (*pmi_pal) (void) __read_only;
+ static int depth __read_mostly;
+ static int vga_compat __read_mostly;
+ /* --------------------------------------------------------------------- */
+@@ -224,6 +225,7 @@ static int __init vesafb_probe(struct pl
+ unsigned int size_vmode;
+ unsigned int size_remap;
+ unsigned int size_total;
++ void *pmi_code = NULL;
+
+ if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
+ return -ENODEV;
+@@ -266,10 +268,6 @@ static int __init vesafb_probe(struct pl
+ size_remap = size_total;
+ vesafb_fix.smem_len = size_remap;
+
+-#ifndef __i386__
+- screen_info.vesapm_seg = 0;
+-#endif
+-
+ if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
+ printk(KERN_WARNING
+ "vesafb: cannot reserve video memory at 0x%lx\n",
+@@ -302,9 +300,21 @@ static int __init vesafb_probe(struct pl
+ printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
+ vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
+
++#ifdef __i386__
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ pmi_code = module_alloc_exec(screen_info.vesapm_size);
++ if (!pmi_code)
++#elif !defined(CONFIG_PAX_KERNEXEC)
++ if (0)
++#endif
++
++#endif
++ screen_info.vesapm_seg = 0;
++
+ if (screen_info.vesapm_seg) {
+- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
+- screen_info.vesapm_seg,screen_info.vesapm_off);
++ printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
++ screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
+ }
+
+ if (screen_info.vesapm_seg < 0xc000)
+@@ -312,9 +322,29 @@ static int __init vesafb_probe(struct pl
+
+ if (ypan || pmi_setpal) {
+ unsigned short *pmi_base;
+- pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
+- pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
+- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ unsigned long cr0;
++#endif
++
++ pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ pax_open_kernel(cr0);
++ memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
++#else
++ pmi_code = pmi_base;
++#endif
++
++ pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
++ pmi_pal = (void*)((char*)pmi_code + pmi_base[2]);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ pmi_start = ktva_ktla(pmi_start);
++ pmi_pal = ktva_ktla(pmi_pal);
++ pax_close_kernel(cr0);
++#endif
++
+ printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
+ if (pmi_base[3]) {
+ printk(KERN_INFO "vesafb: pmi: ports = ");
+@@ -456,6 +486,11 @@ static int __init vesafb_probe(struct pl
+ info->node, info->fix.id);
+ return 0;
+ err:
++
++#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++ module_free_exec(NULL, pmi_code);
++#endif
++
+ if (info->screen_base)
+ iounmap(info->screen_base);
+ framebuffer_release(info);
+diff -urNp linux-2.6.28.8/fs/9p/vfs_inode.c linux-2.6.28.8/fs/9p/vfs_inode.c
+--- linux-2.6.28.8/fs/9p/vfs_inode.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/9p/vfs_inode.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1021,7 +1021,7 @@ static void *v9fs_vfs_follow_link(struct
+ static void
+ v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
+ {
+- char *s = nd_get_link(nd);
++ const char *s = nd_get_link(nd);
+
+ P9_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name,
+ IS_ERR(s) ? "<error>" : s);
+diff -urNp linux-2.6.28.8/fs/aio.c linux-2.6.28.8/fs/aio.c
+--- linux-2.6.28.8/fs/aio.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/aio.c 2009-02-21 09:37:48.000000000 -0500
+@@ -114,7 +114,7 @@ static int aio_setup_ring(struct kioctx
+ size += sizeof(struct io_event) * nr_events;
+ nr_pages = (size + PAGE_SIZE-1) >> PAGE_SHIFT;
+
+- if (nr_pages < 0)
++ if (nr_pages <= 0)
+ return -EINVAL;
+
+ nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring)) / sizeof(struct io_event);
+diff -urNp linux-2.6.28.8/fs/autofs4/symlink.c linux-2.6.28.8/fs/autofs4/symlink.c
+--- linux-2.6.28.8/fs/autofs4/symlink.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/autofs4/symlink.c 2009-02-21 09:37:48.000000000 -0500
+@@ -15,7 +15,7 @@
+ static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
+ {
+ struct autofs_info *ino = autofs4_dentry_ino(dentry);
+- nd_set_link(nd, (char *)ino->u.symlink);
++ nd_set_link(nd, ino->u.symlink);
+ return NULL;
+ }
+
+diff -urNp linux-2.6.28.8/fs/befs/linuxvfs.c linux-2.6.28.8/fs/befs/linuxvfs.c
+--- linux-2.6.28.8/fs/befs/linuxvfs.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/befs/linuxvfs.c 2009-02-21 09:37:48.000000000 -0500
+@@ -490,7 +490,7 @@ static void befs_put_link(struct dentry
+ {
+ befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+ if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
+- char *link = nd_get_link(nd);
++ const char *link = nd_get_link(nd);
+ if (!IS_ERR(link))
+ kfree(link);
+ }
+diff -urNp linux-2.6.28.8/fs/binfmt_aout.c linux-2.6.28.8/fs/binfmt_aout.c
+--- linux-2.6.28.8/fs/binfmt_aout.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/binfmt_aout.c 2009-02-21 09:37:48.000000000 -0500
+@@ -16,6 +16,7 @@
+ #include <linux/string.h>
+ #include <linux/fs.h>
+ #include <linux/file.h>
++#include <linux/security.h>
+ #include <linux/stat.h>
+ #include <linux/fcntl.h>
+ #include <linux/ptrace.h>
+@@ -124,18 +125,22 @@ static int aout_core_dump(long signr, st
+ /* If the size of the dump file exceeds the rlimit, then see what would happen
+ if we wrote the stack, but not the data area. */
+ #ifdef __sparc__
++ gr_learn_resource(current, RLIMIT_CORE, dump.u_dsize + dump.u_ssize, 1);
+ if ((dump.u_dsize + dump.u_ssize) > limit)
+ dump.u_dsize = 0;
+ #else
++ gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
+ if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > limit)
+ dump.u_dsize = 0;
+ #endif
+
+ /* Make sure we have enough room to write the stack and data areas. */
+ #ifdef __sparc__
++ gr_learn_resource(current, RLIMIT_CORE, dump.u_ssize, 1);
+ if (dump.u_ssize > limit)
+ dump.u_ssize = 0;
+ #else
++ gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
+ if ((dump.u_ssize + 1) * PAGE_SIZE > limit)
+ dump.u_ssize = 0;
+ #endif
+@@ -291,6 +296,8 @@ static int load_aout_binary(struct linux
+ rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
+ if (rlim >= RLIM_INFINITY)
+ rlim = ~0;
++
++ gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
+ if (ex.a_data + ex.a_bss > rlim)
+ return -ENOMEM;
+
+@@ -322,6 +329,28 @@ static int load_aout_binary(struct linux
+
+ compute_creds(bprm);
+ current->flags &= ~PF_FORKNOEXEC;
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++ current->mm->pax_flags = 0UL;
++#endif
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
++ current->mm->pax_flags |= MF_PAX_PAGEEXEC;
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
++ current->mm->pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
++ current->mm->pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++ }
++#endif
++
+ #ifdef __sparc__
+ if (N_MAGIC(ex) == NMAGIC) {
+ loff_t pos = fd_offset;
+@@ -413,7 +442,7 @@ static int load_aout_binary(struct linux
+
+ down_write(¤t->mm->mmap_sem);
+ error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
+- PROT_READ | PROT_WRITE | PROT_EXEC,
++ PROT_READ | PROT_WRITE,
+ MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
+ fd_offset + ex.a_text);
+ up_write(¤t->mm->mmap_sem);
+diff -urNp linux-2.6.28.8/fs/binfmt_elf.c linux-2.6.28.8/fs/binfmt_elf.c
+--- linux-2.6.28.8/fs/binfmt_elf.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/fs/binfmt_elf.c 2009-03-07 04:29:14.000000000 -0500
+@@ -42,6 +42,10 @@
+ #include <asm/param.h>
+ #include <asm/page.h>
+
++#ifdef CONFIG_PAX_SEGMEXEC
++#include <asm/desc.h>
++#endif
++
+ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs);
+ static int load_elf_library(struct file *);
+ static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *,
+@@ -57,6 +61,10 @@ static int elf_core_dump(long signr, str
+ #define elf_core_dump NULL
+ #endif
+
++#ifdef CONFIG_PAX_MPROTECT
++static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
++#endif
++
+ #if ELF_EXEC_PAGESIZE > PAGE_SIZE
+ #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE
+ #else
+@@ -76,6 +84,11 @@ static struct linux_binfmt elf_format =
+ .load_binary = load_elf_binary,
+ .load_shlib = load_elf_library,
+ .core_dump = elf_core_dump,
++
++#ifdef CONFIG_PAX_MPROTECT
++ .handle_mprotect= elf_handle_mprotect,
++#endif
++
+ .min_coredump = ELF_EXEC_PAGESIZE,
+ .hasvdso = 1
+ };
+@@ -84,6 +97,8 @@ static struct linux_binfmt elf_format =
+
+ static int set_brk(unsigned long start, unsigned long end)
+ {
++ unsigned long e = end;
++
+ start = ELF_PAGEALIGN(start);
+ end = ELF_PAGEALIGN(end);
+ if (end > start) {
+@@ -94,7 +109,7 @@ static int set_brk(unsigned long start,
+ if (BAD_ADDR(addr))
+ return addr;
+ }
+- current->mm->start_brk = current->mm->brk = end;
++ current->mm->start_brk = current->mm->brk = e;
+ return 0;
+ }
+
+@@ -380,10 +395,10 @@ static unsigned long load_elf_interp(str
+ {
+ struct elf_phdr *elf_phdata;
+ struct elf_phdr *eppnt;
+- unsigned long load_addr = 0;
++ unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
+ int load_addr_set = 0;
+ unsigned long last_bss = 0, elf_bss = 0;
+- unsigned long error = ~0UL;
++ unsigned long error = -EINVAL;
+ unsigned long total_size;
+ int retval, i, size;
+
+@@ -429,6 +444,11 @@ static unsigned long load_elf_interp(str
+ goto out_close;
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
+ eppnt = elf_phdata;
+ for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
+ if (eppnt->p_type == PT_LOAD) {
+@@ -472,8 +492,8 @@ static unsigned long load_elf_interp(str
+ k = load_addr + eppnt->p_vaddr;
+ if (BAD_ADDR(k) ||
+ eppnt->p_filesz > eppnt->p_memsz ||
+- eppnt->p_memsz > TASK_SIZE ||
+- TASK_SIZE - eppnt->p_memsz < k) {
++ eppnt->p_memsz > pax_task_size ||
++ pax_task_size - eppnt->p_memsz < k) {
+ error = -ENOMEM;
+ goto out_close;
+ }
+@@ -527,6 +547,177 @@ out:
+ return error;
+ }
+
++#if (defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)) && defined(CONFIG_PAX_SOFTMODE)
++static unsigned long pax_parse_softmode(const struct elf_phdr * const elf_phdata)
++{
++ unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (elf_phdata->p_flags & PF_PAGEEXEC)
++ pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (elf_phdata->p_flags & PF_SEGMEXEC)
++ pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++ if (nx_enabled)
++ pax_flags &= ~MF_PAX_SEGMEXEC;
++ else
++ pax_flags &= ~MF_PAX_PAGEEXEC;
++ }
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ if (elf_phdata->p_flags & PF_EMUTRAMP)
++ pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (elf_phdata->p_flags & PF_MPROTECT)
++ pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
++ if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
++ pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++ return pax_flags;
++}
++#endif
++
++#ifdef CONFIG_PAX_PT_PAX_FLAGS
++static unsigned long pax_parse_hardmode(const struct elf_phdr * const elf_phdata)
++{
++ unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
++ pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
++ pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++ if (nx_enabled)
++ pax_flags &= ~MF_PAX_SEGMEXEC;
++ else
++ pax_flags &= ~MF_PAX_PAGEEXEC;
++ }
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
++ pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (!(elf_phdata->p_flags & PF_NOMPROTECT))
++ pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
++ if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
++ pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++ return pax_flags;
++}
++#endif
++
++#ifdef CONFIG_PAX_EI_PAX
++static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
++{
++ unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
++ pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
++ pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++ if (nx_enabled)
++ pax_flags &= ~MF_PAX_SEGMEXEC;
++ else
++ pax_flags &= ~MF_PAX_PAGEEXEC;
++ }
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
++ pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
++ pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++ if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
++ pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++ return pax_flags;
++}
++#endif
++
++#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)
++static long pax_parse_elf_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
++{
++ unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PT_PAX_FLAGS
++ unsigned long i;
++#endif
++
++#ifdef CONFIG_PAX_EI_PAX
++ pax_flags = pax_parse_ei_pax(elf_ex);
++#endif
++
++#ifdef CONFIG_PAX_PT_PAX_FLAGS
++ for (i = 0UL; i < elf_ex->e_phnum; i++)
++ if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
++ if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
++ ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
++ ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
++ ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
++ ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
++ return -EINVAL;
++
++#ifdef CONFIG_PAX_SOFTMODE
++ if (pax_softmode)
++ pax_flags = pax_parse_softmode(&elf_phdata[i]);
++ else
++#endif
++
++ pax_flags = pax_parse_hardmode(&elf_phdata[i]);
++ break;
++ }
++#endif
++
++ if (0 > pax_check_flags(&pax_flags))
++ return -EINVAL;
++
++ current->mm->pax_flags = pax_flags;
++ return 0;
++}
++#endif
++
+ /*
+ * These are the functions used to load ELF style executables and shared
+ * libraries. There is no binary dependent code anywhere else.
+@@ -543,6 +734,11 @@ static unsigned long randomize_stack_top
+ {
+ unsigned int random_variable = 0;
+
++#ifdef CONFIG_PAX_RANDUSTACK
++ if (randomize_va_space)
++ return stack_top - current->mm->delta_stack;
++#endif
++
+ if ((current->flags & PF_RANDOMIZE) &&
+ !(current->personality & ADDR_NO_RANDOMIZE)) {
+ random_variable = get_random_int() & STACK_RND_MASK;
+@@ -561,7 +757,7 @@ static int load_elf_binary(struct linux_
+ unsigned long load_addr = 0, load_bias = 0;
+ int load_addr_set = 0;
+ char * elf_interpreter = NULL;
+- unsigned long error;
++ unsigned long error = 0;
+ struct elf_phdr *elf_ppnt, *elf_phdata;
+ unsigned long elf_bss, elf_brk;
+ int elf_exec_fileno;
+@@ -572,11 +768,11 @@ static int load_elf_binary(struct linux_
+ unsigned long start_code, end_code, start_data, end_data;
+ unsigned long reloc_func_desc = 0;
+ int executable_stack = EXSTACK_DEFAULT;
+- unsigned long def_flags = 0;
+ struct {
+ struct elfhdr elf_ex;
+ struct elfhdr interp_elf_ex;
+ } *loc;
++ unsigned long pax_task_size = TASK_SIZE;
+
+ loc = kmalloc(sizeof(*loc), GFP_KERNEL);
+ if (!loc) {
+@@ -744,11 +940,80 @@ static int load_elf_binary(struct linux_
+
+ /* OK, This is the point of no return */
+ current->flags &= ~PF_FORKNOEXEC;
+- current->mm->def_flags = def_flags;
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++ current->mm->pax_flags = 0UL;
++#endif
++
++#ifdef CONFIG_PAX_DLRESOLVE
++ current->mm->call_dl_resolve = 0UL;
++#endif
++
++#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
++ current->mm->call_syscall = 0UL;
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++ current->mm->delta_mmap = 0UL;
++ current->mm->delta_stack = 0UL;
++#endif
++
++ current->mm->def_flags = 0;
++
++#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)
++ if (0 > pax_parse_elf_flags(&loc->elf_ex, elf_phdata)) {
++ send_sig(SIGKILL, current, 0);
++ goto out_free_dentry;
++ }
++#endif
++
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++ pax_set_initial_flags(bprm);
++#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
++ if (pax_set_initial_flags_func)
++ (pax_set_initial_flags_func)(bprm);
++#endif
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++ if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !nx_enabled) {
++ current->mm->context.user_cs_limit = PAGE_SIZE;
++ current->mm->def_flags |= VM_PAGEEXEC;
++ }
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
++ current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
++ current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++ }
++#endif
++
++#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
++ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++ set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
++ put_cpu_no_resched();
++ }
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++ if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
++ current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
++ current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
++ }
++#endif
+
+ /* Do this immediately, since STACK_TOP as used in setup_arg_pages
+ may depend on the personality. */
+ SET_PERSONALITY(loc->elf_ex);
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++ executable_stack = EXSTACK_DISABLE_X;
++ current->personality &= ~READ_IMPLIES_EXEC;
++ } else
++#endif
++
+ if (elf_read_implies_exec(loc->elf_ex, executable_stack))
+ current->personality |= READ_IMPLIES_EXEC;
+
+@@ -829,6 +1094,20 @@ static int load_elf_binary(struct linux_
+ #else
+ load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
+ #endif
++
++#ifdef CONFIG_PAX_RANDMMAP
++ /* PaX: randomize base address at the default exe base if requested */
++ if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
++#ifdef CONFIG_SPARC64
++ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
++#else
++ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
++#endif
++ load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
++ elf_flags |= MAP_FIXED;
++ }
++#endif
++
+ }
+
+ error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
+@@ -861,9 +1140,9 @@ static int load_elf_binary(struct linux_
+ * allowed task size. Note that p_filesz must always be
+ * <= p_memsz so it is only necessary to check p_memsz.
+ */
+- if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
+- elf_ppnt->p_memsz > TASK_SIZE ||
+- TASK_SIZE - elf_ppnt->p_memsz < k) {
++ if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
++ elf_ppnt->p_memsz > pax_task_size ||
++ pax_task_size - elf_ppnt->p_memsz < k) {
+ /* set_brk can never work. Avoid overflows. */
+ send_sig(SIGKILL, current, 0);
+ retval = -EINVAL;
+@@ -891,6 +1170,11 @@ static int load_elf_binary(struct linux_
+ start_data += load_bias;
+ end_data += load_bias;
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (current->mm->pax_flags & MF_PAX_RANDMMAP)
++ elf_brk += PAGE_SIZE + ((pax_get_random_long() & ~PAGE_MASK) << 4);
++#endif
++
+ /* Calling set_brk effectively mmaps the pages that we need
+ * for the bss and break sections. We must do this before
+ * mapping in the interpreter, to make sure it doesn't wind
+@@ -902,9 +1186,11 @@ static int load_elf_binary(struct linux_
+ goto out_free_dentry;
+ }
+ if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
+- send_sig(SIGSEGV, current, 0);
+- retval = -EFAULT; /* Nobody gets to see this, but.. */
+- goto out_free_dentry;
++ /*
++ * This bss-zeroing can fail if the ELF
++ * file specifies odd protections. So
++ * we don't check the return value
++ */
+ }
+
+ if (elf_interpreter) {
+@@ -1141,8 +1427,10 @@ static int dump_seek(struct file *file,
+ unsigned long n = off;
+ if (n > PAGE_SIZE)
+ n = PAGE_SIZE;
+- if (!dump_write(file, buf, n))
++ if (!dump_write(file, buf, n)) {
++ free_page((unsigned long)buf);
+ return 0;
++ }
+ off -= n;
+ }
+ free_page((unsigned long)buf);
+@@ -1154,7 +1442,7 @@ static int dump_seek(struct file *file,
+ * Decide what to dump of a segment, part, all or none.
+ */
+ static unsigned long vma_dump_size(struct vm_area_struct *vma,
+- unsigned long mm_flags)
++ unsigned long mm_flags, long signr)
+ {
+ #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type))
+
+@@ -1188,7 +1476,7 @@ static unsigned long vma_dump_size(struc
+ if (vma->vm_file == NULL)
+ return 0;
+
+- if (FILTER(MAPPED_PRIVATE))
++ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
+ goto whole;
+
+ /*
+@@ -1284,8 +1572,11 @@ static int writenote(struct memelfnote *
+ #undef DUMP_WRITE
+
+ #define DUMP_WRITE(addr, nr) \
++ do { \
++ gr_learn_resource(current, RLIMIT_CORE, size + (nr), 1); \
+ if ((size += (nr)) > limit || !dump_write(file, (addr), (nr))) \
+- goto end_coredump;
++ goto end_coredump; \
++ } while (0);
+ #define DUMP_SEEK(off) \
+ if (!dump_seek(file, (off))) \
+ goto end_coredump;
+@@ -1986,7 +2277,7 @@ static int elf_core_dump(long signr, str
+ phdr.p_offset = offset;
+ phdr.p_vaddr = vma->vm_start;
+ phdr.p_paddr = 0;
+- phdr.p_filesz = vma_dump_size(vma, mm_flags);
++ phdr.p_filesz = vma_dump_size(vma, mm_flags, signr);
+ phdr.p_memsz = vma->vm_end - vma->vm_start;
+ offset += phdr.p_filesz;
+ phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
+@@ -2018,7 +2309,7 @@ static int elf_core_dump(long signr, str
+ unsigned long addr;
+ unsigned long end;
+
+- end = vma->vm_start + vma_dump_size(vma, mm_flags);
++ end = vma->vm_start + vma_dump_size(vma, mm_flags, signr);
+
+ for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) {
+ struct page *page;
+@@ -2038,6 +2329,7 @@ static int elf_core_dump(long signr, str
+ flush_cache_page(tmp_vma, addr,
+ page_to_pfn(page));
+ kaddr = kmap(page);
++ gr_learn_resource(current, RLIMIT_CORE, size + PAGE_SIZE, 1);
+ if ((size += PAGE_SIZE) > limit ||
+ !dump_write(file, kaddr,
+ PAGE_SIZE)) {
+@@ -2068,6 +2360,99 @@ out:
+
+ #endif /* USE_ELF_CORE_DUMP */
+
++#ifdef CONFIG_PAX_MPROTECT
++/* PaX: non-PIC ELF libraries need relocations on their executable segments
++ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
++ * we'll remove VM_MAYWRITE for good on RELRO segments.
++ *
++ * The checks favour ld-linux.so behaviour which operates on a per ELF segment
++ * basis because we want to allow the common case and not the special ones.
++ */
++static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
++{
++ struct elfhdr elf_h;
++ struct elf_phdr elf_p;
++ unsigned long i;
++ unsigned long oldflags;
++ bool is_textrel_rw, is_textrel_rx, is_relro;
++
++ if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT))
++ return;
++
++ oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
++ newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
++
++#ifdef CONFIG_PAX_NOELFRELOCS
++ is_textrel_rw = false;
++ is_textrel_rx = false;
++#else
++ /* possible TEXTREL */
++ is_textrel_rw = vma->vm_file && !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
++ is_textrel_rx = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
++#endif
++
++ /* possible RELRO */
++ is_relro = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
++
++ if (!is_textrel_rw && !is_textrel_rx && !is_relro)
++ return;
++
++ if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
++ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
++
++#ifdef CONFIG_PAX_ETEXECRELOCS
++ ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
++#else
++ ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
++#endif
++
++ (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
++ !elf_check_arch(&elf_h) ||
++ elf_h.e_phentsize != sizeof(struct elf_phdr) ||
++ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
++ return;
++
++ for (i = 0UL; i < elf_h.e_phnum; i++) {
++ if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
++ return;
++ switch (elf_p.p_type) {
++ case PT_DYNAMIC: {
++ elf_addr_t dyn_offset = 0UL;
++ elf_dyn dyn;
++
++ if (!is_textrel_rw && !is_textrel_rx)
++ continue;
++ dyn_offset = elf_p.p_offset;
++ i = 0UL;
++ do {
++ if (sizeof(dyn) != kernel_read(vma->vm_file, dyn_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
++ return;
++ if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
++ gr_log_textrel(vma);
++ if (is_textrel_rw)
++ vma->vm_flags |= VM_MAYWRITE;
++ else
++ /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
++ vma->vm_flags &= ~VM_MAYWRITE;
++ return;
++ }
++ i++;
++ } while (dyn.d_tag != DT_NULL);
++ return;
++ }
++
++ case PT_GNU_RELRO:
++ if (!is_relro)
++ continue;
++ if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start) {
++ vma->vm_flags &= ~VM_MAYWRITE;
++ }
++ return;
++ }
++ }
++}
++#endif
++
+ static int __init init_elf_binfmt(void)
+ {
+ return register_binfmt(&elf_format);
+diff -urNp linux-2.6.28.8/fs/binfmt_flat.c linux-2.6.28.8/fs/binfmt_flat.c
+--- linux-2.6.28.8/fs/binfmt_flat.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/binfmt_flat.c 2009-02-21 09:37:48.000000000 -0500
+@@ -561,7 +561,9 @@ static int load_flat_file(struct linux_b
+ realdatastart = (unsigned long) -ENOMEM;
+ printk("Unable to allocate RAM for process data, errno %d\n",
+ (int)-realdatastart);
++ down_write(¤t->mm->mmap_sem);
+ do_munmap(current->mm, textpos, text_len);
++ up_write(¤t->mm->mmap_sem);
+ ret = realdatastart;
+ goto err;
+ }
+@@ -583,8 +585,10 @@ static int load_flat_file(struct linux_b
+ }
+ if (result >= (unsigned long)-4096) {
+ printk("Unable to read data+bss, errno %d\n", (int)-result);
++ down_write(¤t->mm->mmap_sem);
+ do_munmap(current->mm, textpos, text_len);
+ do_munmap(current->mm, realdatastart, data_len + extra);
++ up_write(¤t->mm->mmap_sem);
+ ret = result;
+ goto err;
+ }
+@@ -657,8 +661,10 @@ static int load_flat_file(struct linux_b
+ }
+ if (result >= (unsigned long)-4096) {
+ printk("Unable to read code+data+bss, errno %d\n",(int)-result);
++ down_write(¤t->mm->mmap_sem);
+ do_munmap(current->mm, textpos, text_len + data_len + extra +
+ MAX_SHARED_LIBS * sizeof(unsigned long));
++ up_write(¤t->mm->mmap_sem);
+ ret = result;
+ goto err;
+ }
+diff -urNp linux-2.6.28.8/fs/binfmt_misc.c linux-2.6.28.8/fs/binfmt_misc.c
+--- linux-2.6.28.8/fs/binfmt_misc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/binfmt_misc.c 2009-02-21 09:37:48.000000000 -0500
+@@ -696,7 +696,7 @@ static int bm_fill_super(struct super_bl
+ static struct tree_descr bm_files[] = {
+ [2] = {"status", &bm_status_operations, S_IWUSR|S_IRUGO},
+ [3] = {"register", &bm_register_operations, S_IWUSR},
+- /* last one */ {""}
++ /* last one */ {"", NULL, 0}
+ };
+ int err = simple_fill_super(sb, 0x42494e4d, bm_files);
+ if (!err)
+diff -urNp linux-2.6.28.8/fs/bio.c linux-2.6.28.8/fs/bio.c
+--- linux-2.6.28.8/fs/bio.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/bio.c 2009-02-21 09:37:48.000000000 -0500
+@@ -554,7 +554,7 @@ static int __bio_copy_iov(struct bio *bi
+
+ while (bv_len && iov_idx < iov_count) {
+ unsigned int bytes;
+- char *iov_addr;
++ char __user *iov_addr;
+
+ bytes = min_t(unsigned int,
+ iov[iov_idx].iov_len - iov_off, bv_len);
+diff -urNp linux-2.6.28.8/fs/buffer.c linux-2.6.28.8/fs/buffer.c
+--- linux-2.6.28.8/fs/buffer.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/buffer.c 2009-02-21 09:37:48.000000000 -0500
+@@ -25,6 +25,7 @@
+ #include <linux/percpu.h>
+ #include <linux/slab.h>
+ #include <linux/capability.h>
++#include <linux/security.h>
+ #include <linux/blkdev.h>
+ #include <linux/file.h>
+ #include <linux/quotaops.h>
+@@ -2249,6 +2250,7 @@ int generic_cont_expand_simple(struct in
+
+ err = -EFBIG;
+ limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
++ gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long) size, 1);
+ if (limit != RLIM_INFINITY && size > (loff_t)limit) {
+ send_sig(SIGXFSZ, current, 0);
+ goto out;
+diff -urNp linux-2.6.28.8/fs/cifs/cifs_uniupr.h linux-2.6.28.8/fs/cifs/cifs_uniupr.h
+--- linux-2.6.28.8/fs/cifs/cifs_uniupr.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/cifs/cifs_uniupr.h 2009-02-21 09:37:48.000000000 -0500
+@@ -132,7 +132,7 @@ const struct UniCaseRange CifsUniUpperRa
+ {0x0490, 0x04cc, UniCaseRangeU0490},
+ {0x1e00, 0x1ffc, UniCaseRangeU1e00},
+ {0xff40, 0xff5a, UniCaseRangeUff40},
+- {0}
++ {0, 0, NULL}
+ };
+ #endif
+
+diff -urNp linux-2.6.28.8/fs/cifs/link.c linux-2.6.28.8/fs/cifs/link.c
+--- linux-2.6.28.8/fs/cifs/link.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/cifs/link.c 2009-02-21 09:37:48.000000000 -0500
+@@ -318,7 +318,7 @@ cifs_readlink(struct dentry *direntry, c
+
+ void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
+ {
+- char *p = nd_get_link(nd);
++ const char *p = nd_get_link(nd);
+ if (!IS_ERR(p))
+ kfree(p);
+ }
+diff -urNp linux-2.6.28.8/fs/compat.c linux-2.6.28.8/fs/compat.c
+--- linux-2.6.28.8/fs/compat.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/compat.c 2009-02-21 09:37:48.000000000 -0500
+@@ -1331,14 +1331,12 @@ static int compat_copy_strings(int argc,
+ if (!kmapped_page || kpos != (pos & PAGE_MASK)) {
+ struct page *page;
+
+-#ifdef CONFIG_STACK_GROWSUP
+ ret = expand_stack_downwards(bprm->vma, pos);
+ if (ret < 0) {
+ /* We've exceed the stack rlimit. */
+ ret = -E2BIG;
+ goto out;
+ }
+-#endif
+ ret = get_user_pages(current, bprm->mm, pos,
+ 1, 1, 1, &page, NULL);
+ if (ret <= 0) {
+@@ -1384,6 +1382,11 @@ int compat_do_execve(char * filename,
+ compat_uptr_t __user *envp,
+ struct pt_regs * regs)
+ {
++#ifdef CONFIG_GRKERNSEC
++ struct file *old_exec_file;
++ struct acl_subject_label *old_acl;
++ struct rlimit old_rlim[RLIM_NLIMITS];
++#endif
+ struct linux_binprm *bprm;
+ struct file *file;
+ int retval;
+@@ -1404,6 +1407,14 @@ int compat_do_execve(char * filename,
+ bprm->filename = filename;
+ bprm->interp = filename;
+
++ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(¤t->user->processes), 1);
++ retval = -EAGAIN;
++ if (gr_handle_nproc())
++ goto out_file;
++ retval = -EACCES;
++ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt))
++ goto out_file;
++
+ retval = bprm_mm_init(bprm);
+ if (retval)
+ goto out_file;
+@@ -1437,8 +1448,36 @@ int compat_do_execve(char * filename,
+ if (retval < 0)
+ goto out;
+
++ if (!gr_tpe_allow(file)) {
++ retval = -EACCES;
++ goto out;
++ }
++
++ if (gr_check_crash_exec(file)) {
++ retval = -EACCES;
++ goto out;
++ }
++
++ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt);
++
++ gr_handle_exec_args(bprm, (char __user * __user *)argv);
++
++#ifdef CONFIG_GRKERNSEC
++ old_acl = current->acl;
++ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
++ old_exec_file = current->exec_file;
++ get_file(file);
++ current->exec_file = file;
++#endif
++
++ gr_set_proc_label(file->f_dentry, file->f_vfsmnt);
++
+ retval = search_binary_handler(bprm, regs);
+ if (retval >= 0) {
++#ifdef CONFIG_GRKERNSEC
++ if (old_exec_file)
++ fput(old_exec_file);
++#endif
+ /* execve success */
+ security_bprm_free(bprm);
+ acct_update_integrals(current);
+@@ -1446,6 +1485,13 @@ int compat_do_execve(char * filename,
+ return retval;
+ }
+
++#ifdef CONFIG_GRKERNSEC
++ current->acl = old_acl;
++ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
++ fput(current->exec_file);
++ current->exec_file = old_exec_file;
++#endif
++
+ out:
+ if (bprm->security)
+ security_bprm_free(bprm);
+diff -urNp linux-2.6.28.8/fs/compat_ioctl.c linux-2.6.28.8/fs/compat_ioctl.c
+--- linux-2.6.28.8/fs/compat_ioctl.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/fs/compat_ioctl.c 2009-03-07 10:29:51.000000000 -0500
+@@ -1832,15 +1832,15 @@ struct ioctl_trans {
+ };
+
+ #define HANDLE_IOCTL(cmd,handler) \
+- { (cmd), (ioctl_trans_handler_t)(handler) },
++ { (cmd), (ioctl_trans_handler_t)(handler), NULL },
+
+ /* pointer to compatible structure or no argument */
+ #define COMPATIBLE_IOCTL(cmd) \
+- { (cmd), do_ioctl32_pointer },
++ { (cmd), do_ioctl32_pointer, NULL },
+
+ /* argument is an unsigned long integer, not a pointer */
+ #define ULONG_IOCTL(cmd) \
+- { (cmd), (ioctl_trans_handler_t)sys_ioctl },
++ { (cmd), (ioctl_trans_handler_t)sys_ioctl, NULL },
+
+ /* ioctl should not be warned about even if it's not implemented.
+ Valid reasons to use this:
+diff -urNp linux-2.6.28.8/fs/debugfs/inode.c linux-2.6.28.8/fs/debugfs/inode.c
+--- linux-2.6.28.8/fs/debugfs/inode.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/debugfs/inode.c 2009-02-21 09:37:48.000000000 -0500
+@@ -120,7 +120,7 @@ static inline int debugfs_positive(struc
+
+ static int debug_fill_super(struct super_block *sb, void *data, int silent)
+ {
+- static struct tree_descr debug_files[] = {{""}};
++ static struct tree_descr debug_files[] = {{"", NULL, 0}};
+
+ return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files);
+ }
+diff -urNp linux-2.6.28.8/fs/exec.c linux-2.6.28.8/fs/exec.c
+--- linux-2.6.28.8/fs/exec.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/exec.c 2009-02-21 09:37:48.000000000 -0500
+@@ -51,6 +51,12 @@
+ #include <linux/audit.h>
+ #include <linux/tracehook.h>
+ #include <linux/kmod.h>
++#include <linux/random.h>
++
++#ifdef CONFIG_PAX_REFCOUNT
++#include <linux/kallsyms.h>
++#include <linux/kdebug.h>
++#endif
+
+ #include <asm/uaccess.h>
+ #include <asm/mmu_context.h>
+@@ -61,6 +67,11 @@
+ #include <linux/a.out.h>
+ #endif
+
++#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
++void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
++EXPORT_SYMBOL(pax_set_initial_flags_func);
++#endif
++
+ int core_uses_pid;
+ char core_pattern[CORENAME_MAX_SIZE] = "core";
+ int suid_dumpable = 0;
+@@ -169,18 +180,10 @@ static struct page *get_arg_page(struct
+ int write)
+ {
+ struct page *page;
+- int ret;
+
+-#ifdef CONFIG_STACK_GROWSUP
+- if (write) {
+- ret = expand_stack_downwards(bprm->vma, pos);
+- if (ret < 0)
+- return NULL;
+- }
+-#endif
+- ret = get_user_pages(current, bprm->mm, pos,
+- 1, write, 1, &page, NULL);
+- if (ret <= 0)
++ if (0 > expand_stack_downwards(bprm->vma, pos))
++ return NULL;
++ if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
+ return NULL;
+
+ if (write) {
+@@ -253,6 +256,11 @@ static int __bprm_mm_init(struct linux_b
+ vma->vm_start = vma->vm_end - PAGE_SIZE;
+
+ vma->vm_flags = VM_STACK_FLAGS;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
++#endif
++
+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+ err = insert_vm_struct(mm, vma);
+ if (err) {
+@@ -265,6 +273,11 @@ static int __bprm_mm_init(struct linux_b
+
+ bprm->p = vma->vm_end - sizeof(void *);
+
++#ifdef CONFIG_PAX_RANDUSTACK
++ if (randomize_va_space)
++ bprm->p ^= (pax_get_random_long() & ~15) & ~PAGE_MASK;
++#endif
++
+ return 0;
+
+ err:
+@@ -528,6 +541,10 @@ static int shift_arg_pages(struct vm_are
+ if (vma != find_vma(mm, new_start))
+ return -EFAULT;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ BUG_ON(pax_find_mirror_vma(vma));
++#endif
++
+ /*
+ * cover the whole range: [new_start, old_end)
+ */
+@@ -616,6 +633,14 @@ int setup_arg_pages(struct linux_binprm
+ bprm->exec -= stack_shift;
+
+ down_write(&mm->mmap_sem);
++
++ /* Move stack pages down in memory. */
++ if (stack_shift) {
++ ret = shift_arg_pages(vma, stack_shift);
++ if (ret)
++ goto out_unlock;
++ }
++
+ vm_flags = VM_STACK_FLAGS;
+
+ /*
+@@ -629,21 +654,24 @@ int setup_arg_pages(struct linux_binprm
+ vm_flags &= ~VM_EXEC;
+ vm_flags |= mm->def_flags;
+
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++ vm_flags &= ~VM_EXEC;
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (mm->pax_flags & MF_PAX_MPROTECT)
++ vm_flags &= ~VM_MAYEXEC;
++#endif
++
++ }
++#endif
++
+ ret = mprotect_fixup(vma, &prev, vma->vm_start, vma->vm_end,
+ vm_flags);
+ if (ret)
+ goto out_unlock;
+ BUG_ON(prev != vma);
+
+- /* Move stack pages down in memory. */
+- if (stack_shift) {
+- ret = shift_arg_pages(vma, stack_shift);
+- if (ret) {
+- up_write(&mm->mmap_sem);
+- return ret;
+- }
+- }
+-
+ #ifdef CONFIG_STACK_GROWSUP
+ stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE;
+ #else
+@@ -655,7 +683,7 @@ int setup_arg_pages(struct linux_binprm
+
+ out_unlock:
+ up_write(&mm->mmap_sem);
+- return 0;
++ return ret;
+ }
+ EXPORT_SYMBOL(setup_arg_pages);
+
+@@ -1281,6 +1309,11 @@ int do_execve(char * filename,
+ char __user *__user *envp,
+ struct pt_regs * regs)
+ {
++#ifdef CONFIG_GRKERNSEC
++ struct file *old_exec_file;
++ struct acl_subject_label *old_acl;
++ struct rlimit old_rlim[RLIM_NLIMITS];
++#endif
+ struct linux_binprm *bprm;
+ struct file *file;
+ struct files_struct *displaced;
+@@ -1300,6 +1333,20 @@ int do_execve(char * filename,
+ if (IS_ERR(file))
+ goto out_kfree;
+
++ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(¤t->user->processes), 1);
++
++ if (gr_handle_nproc()) {
++ allow_write_access(file);
++ fput(file);
++ return -EAGAIN;
++ }
++
++ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt)) {
++ allow_write_access(file);
++ fput(file);
++ return -EACCES;
++ }
++
+ sched_exec();
+
+ bprm->file = file;
+@@ -1339,9 +1386,39 @@ int do_execve(char * filename,
+ if (retval < 0)
+ goto out;
+
++ if (!gr_tpe_allow(file)) {
++ retval = -EACCES;
++ goto out;
++ }
++
++ if (gr_check_crash_exec(file)) {
++ retval = -EACCES;
++ goto out;
++ }
++
++ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt);
++
++ gr_handle_exec_args(bprm, argv);
++
++#ifdef CONFIG_GRKERNSEC
++ old_acl = current->acl;
++ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
++ old_exec_file = current->exec_file;
++ get_file(file);
++ current->exec_file = file;
++#endif
++
++ retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt);
++ if (retval < 0)
++ goto out_fail;
++
+ current->flags &= ~PF_KTHREAD;
+ retval = search_binary_handler(bprm,regs);
+ if (retval >= 0) {
++#ifdef CONFIG_GRKERNSEC
++ if (old_exec_file)
++ fput(old_exec_file);
++#endif
+ /* execve success */
+ security_bprm_free(bprm);
+ acct_update_integrals(current);
+@@ -1351,6 +1428,14 @@ int do_execve(char * filename,
+ return retval;
+ }
+
++out_fail:
++#ifdef CONFIG_GRKERNSEC
++ current->acl = old_acl;
++ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
++ fput(current->exec_file);
++ current->exec_file = old_exec_file;
++#endif
++
+ out:
+ if (bprm->security)
+ security_bprm_free(bprm);
+@@ -1513,6 +1598,129 @@ out:
+ return ispipe;
+ }
+
++int pax_check_flags(unsigned long *flags)
++{
++ int retval = 0;
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
++ if (*flags & MF_PAX_SEGMEXEC)
++ {
++ *flags &= ~MF_PAX_SEGMEXEC;
++ retval = -EINVAL;
++ }
++#endif
++
++ if ((*flags & MF_PAX_PAGEEXEC)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++ && (*flags & MF_PAX_SEGMEXEC)
++#endif
++
++ )
++ {
++ *flags &= ~MF_PAX_PAGEEXEC;
++ retval = -EINVAL;
++ }
++
++ if ((*flags & MF_PAX_MPROTECT)
++
++#ifdef CONFIG_PAX_MPROTECT
++ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
++#endif
++
++ )
++ {
++ *flags &= ~MF_PAX_MPROTECT;
++ retval = -EINVAL;
++ }
++
++ if ((*flags & MF_PAX_EMUTRAMP)
++
++#ifdef CONFIG_PAX_EMUTRAMP
++ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
++#endif
++
++ )
++ {
++ *flags &= ~MF_PAX_EMUTRAMP;
++ retval = -EINVAL;
++ }
++
++ return retval;
++}
++
++EXPORT_SYMBOL(pax_check_flags);
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
++{
++ struct task_struct *tsk = current;
++ struct mm_struct *mm = current->mm;
++ char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
++ char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
++ char *path_exec = NULL;
++ char *path_fault = NULL;
++ unsigned long start = 0UL, end = 0UL, offset = 0UL;
++
++ if (buffer_exec && buffer_fault) {
++ struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
++
++ down_read(&mm->mmap_sem);
++ vma = mm->mmap;
++ while (vma && (!vma_exec || !vma_fault)) {
++ if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file)
++ vma_exec = vma;
++ if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
++ vma_fault = vma;
++ vma = vma->vm_next;
++ }
++ if (vma_exec) {
++ path_exec = d_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
++ if (IS_ERR(path_exec))
++ path_exec = "<path too long>";
++ }
++ if (vma_fault) {
++ start = vma_fault->vm_start;
++ end = vma_fault->vm_end;
++ offset = vma_fault->vm_pgoff << PAGE_SHIFT;
++ if (vma_fault->vm_file) {
++ path_fault = d_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
++ if (IS_ERR(path_fault))
++ path_fault = "<path too long>";
++ } else
++ path_fault = "<anonymous mapping>";
++ }
++ up_read(&mm->mmap_sem);
++ }
++ if (tsk->signal->curr_ip)
++ printk(KERN_ERR "PAX: From %u.%u.%u.%u: execution attempt in: %s, %08lx-%08lx %08lx\n", NIPQUAD(tsk->signal->curr_ip), path_fault, start, end, offset);
++ else
++ printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
++ printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, "
++ "PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
++ tsk->uid, tsk->euid, pc, sp);
++ free_page((unsigned long)buffer_exec);
++ free_page((unsigned long)buffer_fault);
++ pax_report_insns(pc, sp);
++ do_coredump(SIGKILL, SIGKILL, regs);
++}
++#endif
++
++#ifdef CONFIG_PAX_REFCOUNT
++void pax_report_refcount_overflow(struct pt_regs *regs)
++{
++ if (current->signal->curr_ip)
++ printk(KERN_ERR "PAX: From %u.%u.%u.%u: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
++ NIPQUAD(current->signal->curr_ip), current->comm, task_pid_nr(current), current->uid, current->euid);
++ else
++ printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
++ current->comm, task_pid_nr(current), current->uid, current->euid);
++ print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
++ show_registers(regs);
++ force_sig_specific(SIGKILL, current);
++}
++#endif
++
+ static int zap_process(struct task_struct *start)
+ {
+ struct task_struct *t;
+@@ -1759,6 +1967,10 @@ int do_coredump(long signr, int exit_cod
+ */
+ clear_thread_flag(TIF_SIGPENDING);
+
++ if (signr == SIGKILL || signr == SIGILL)
++ gr_handle_brute_attach(current);
++ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
++
+ /*
+ * lock_kernel() because format_corename() is controlled by sysctl, which
+ * uses lock_kernel()
+@@ -1779,6 +1991,8 @@ int do_coredump(long signr, int exit_cod
+
+ if (ispipe) {
+ helper_argv = argv_split(GFP_KERNEL, corename+1, &helper_argc);
++ if (!helper_argv)
++ goto fail_unlock;
+ /* Terminate the string before the first option */
+ delimit = strchr(corename, ' ');
+ if (delimit)
+diff -urNp linux-2.6.28.8/fs/ext2/balloc.c linux-2.6.28.8/fs/ext2/balloc.c
+--- linux-2.6.28.8/fs/ext2/balloc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/ext2/balloc.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1192,7 +1192,7 @@ static int ext2_has_free_blocks(struct e
+
+ free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
+ root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
+- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
++ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) &&
+ sbi->s_resuid != current->fsuid &&
+ (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
+ return 0;
+diff -urNp linux-2.6.28.8/fs/ext3/balloc.c linux-2.6.28.8/fs/ext3/balloc.c
+--- linux-2.6.28.8/fs/ext3/balloc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/ext3/balloc.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1421,7 +1421,7 @@ static int ext3_has_free_blocks(struct e
+
+ free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
+ root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
+- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
++ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) &&
+ sbi->s_resuid != current->fsuid &&
+ (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
+ return 0;
+diff -urNp linux-2.6.28.8/fs/ext3/namei.c linux-2.6.28.8/fs/ext3/namei.c
+--- linux-2.6.28.8/fs/ext3/namei.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/ext3/namei.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1156,9 +1156,9 @@ static struct ext3_dir_entry_2 *do_split
+ u32 hash2;
+ struct dx_map_entry *map;
+ char *data1 = (*bh)->b_data, *data2;
+- unsigned split, move, size, i;
++ unsigned split, move, size;
+ struct ext3_dir_entry_2 *de = NULL, *de2;
+- int err = 0;
++ int i, err = 0;
+
+ bh2 = ext3_append (handle, dir, &newblock, &err);
+ if (!(bh2)) {
+diff -urNp linux-2.6.28.8/fs/ext3/xattr.c linux-2.6.28.8/fs/ext3/xattr.c
+--- linux-2.6.28.8/fs/ext3/xattr.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/ext3/xattr.c 2009-02-21 09:37:49.000000000 -0500
+@@ -89,8 +89,8 @@
+ printk("\n"); \
+ } while (0)
+ #else
+-# define ea_idebug(f...)
+-# define ea_bdebug(f...)
++# define ea_idebug(f...) do {} while (0)
++# define ea_bdebug(f...) do {} while (0)
+ #endif
+
+ static void ext3_xattr_cache_insert(struct buffer_head *);
+diff -urNp linux-2.6.28.8/fs/ext4/balloc.c linux-2.6.28.8/fs/ext4/balloc.c
+--- linux-2.6.28.8/fs/ext4/balloc.c 2009-02-20 22:26:39.000000000 -0500
++++ linux-2.6.28.8/fs/ext4/balloc.c 2009-02-21 09:37:49.000000000 -0500
+@@ -576,7 +576,7 @@ int ext4_has_free_blocks(struct ext4_sb_
+ /* Hm, nope. Are (enough) root reserved blocks available? */
+ if (sbi->s_resuid == current->fsuid ||
+ ((sbi->s_resgid != 0) && in_group_p(sbi->s_resgid)) ||
+- capable(CAP_SYS_RESOURCE)) {
++ capable_nolog(CAP_SYS_RESOURCE)) {
+ if (free_blocks >= (nblocks + dirty_blocks))
+ return 1;
+ }
+diff -urNp linux-2.6.28.8/fs/ext4/namei.c linux-2.6.28.8/fs/ext4/namei.c
+--- linux-2.6.28.8/fs/ext4/namei.c 2009-02-20 22:26:39.000000000 -0500
++++ linux-2.6.28.8/fs/ext4/namei.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1171,9 +1171,9 @@ static struct ext4_dir_entry_2 *do_split
+ u32 hash2;
+ struct dx_map_entry *map;
+ char *data1 = (*bh)->b_data, *data2;
+- unsigned split, move, size, i;
++ unsigned split, move, size;
+ struct ext4_dir_entry_2 *de = NULL, *de2;
+- int err = 0;
++ int i, err = 0;
+
+ bh2 = ext4_append (handle, dir, &newblock, &err);
+ if (!(bh2)) {
+diff -urNp linux-2.6.28.8/fs/fcntl.c linux-2.6.28.8/fs/fcntl.c
+--- linux-2.6.28.8/fs/fcntl.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/fcntl.c 2009-02-21 09:37:49.000000000 -0500
+@@ -266,6 +266,7 @@ static long do_fcntl(int fd, unsigned in
+ switch (cmd) {
+ case F_DUPFD:
+ case F_DUPFD_CLOEXEC:
++ gr_learn_resource(current, RLIMIT_NOFILE, arg, 0);
+ if (arg >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
+ break;
+ err = alloc_fd(arg, cmd == F_DUPFD_CLOEXEC ? O_CLOEXEC : 0);
+@@ -411,7 +412,8 @@ static inline int sigio_perm(struct task
+ return (((fown->euid == 0) ||
+ (fown->euid == p->suid) || (fown->euid == p->uid) ||
+ (fown->uid == p->suid) || (fown->uid == p->uid)) &&
+- !security_file_send_sigiotask(p, fown, sig));
++ !security_file_send_sigiotask(p, fown, sig) &&
++ !gr_check_protected_task(p) && !gr_pid_is_chrooted(p));
+ }
+
+ static void send_sigio_to_task(struct task_struct *p,
+diff -urNp linux-2.6.28.8/fs/file.c linux-2.6.28.8/fs/file.c
+--- linux-2.6.28.8/fs/file.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/file.c 2009-02-21 09:37:49.000000000 -0500
+@@ -13,6 +13,7 @@
+ #include <linux/slab.h>
+ #include <linux/vmalloc.h>
+ #include <linux/file.h>
++#include <linux/security.h>
+ #include <linux/fdtable.h>
+ #include <linux/bitops.h>
+ #include <linux/interrupt.h>
+@@ -256,6 +257,8 @@ int expand_files(struct files_struct *fi
+ * N.B. For clone tasks sharing a files structure, this test
+ * will limit the total number of files that can be opened.
+ */
++
++ gr_learn_resource(current, RLIMIT_NOFILE, nr, 0);
+ if (nr >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
+ return -EMFILE;
+
+diff -urNp linux-2.6.28.8/fs/fuse/control.c linux-2.6.28.8/fs/fuse/control.c
+--- linux-2.6.28.8/fs/fuse/control.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/fuse/control.c 2009-02-21 09:37:49.000000000 -0500
+@@ -159,7 +159,7 @@ void fuse_ctl_remove_conn(struct fuse_co
+
+ static int fuse_ctl_fill_super(struct super_block *sb, void *data, int silent)
+ {
+- struct tree_descr empty_descr = {""};
++ struct tree_descr empty_descr = {"", NULL, 0};
+ struct fuse_conn *fc;
+ int err;
+
+diff -urNp linux-2.6.28.8/fs/fuse/dir.c linux-2.6.28.8/fs/fuse/dir.c
+--- linux-2.6.28.8/fs/fuse/dir.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/fuse/dir.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1072,7 +1072,7 @@ static char *read_link(struct dentry *de
+ return link;
+ }
+
+-static void free_link(char *link)
++static void free_link(const char *link)
+ {
+ if (!IS_ERR(link))
+ free_page((unsigned long) link);
+diff -urNp linux-2.6.28.8/fs/hfs/inode.c linux-2.6.28.8/fs/hfs/inode.c
+--- linux-2.6.28.8/fs/hfs/inode.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/hfs/inode.c 2009-02-21 09:37:49.000000000 -0500
+@@ -419,7 +419,7 @@ int hfs_write_inode(struct inode *inode,
+
+ if (S_ISDIR(main_inode->i_mode)) {
+ if (fd.entrylength < sizeof(struct hfs_cat_dir))
+- /* panic? */;
++ {/* panic? */}
+ hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
+ sizeof(struct hfs_cat_dir));
+ if (rec.type != HFS_CDR_DIR ||
+@@ -440,7 +440,7 @@ int hfs_write_inode(struct inode *inode,
+ sizeof(struct hfs_cat_file));
+ } else {
+ if (fd.entrylength < sizeof(struct hfs_cat_file))
+- /* panic? */;
++ {/* panic? */}
+ hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
+ sizeof(struct hfs_cat_file));
+ if (rec.type != HFS_CDR_FIL ||
+diff -urNp linux-2.6.28.8/fs/hfsplus/inode.c linux-2.6.28.8/fs/hfsplus/inode.c
+--- linux-2.6.28.8/fs/hfsplus/inode.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/hfsplus/inode.c 2009-02-21 09:37:49.000000000 -0500
+@@ -406,7 +406,7 @@ int hfsplus_cat_read_inode(struct inode
+ struct hfsplus_cat_folder *folder = &entry.folder;
+
+ if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
+- /* panic? */;
++ {/* panic? */}
+ hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
+ sizeof(struct hfsplus_cat_folder));
+ hfsplus_get_perms(inode, &folder->permissions, 1);
+@@ -423,7 +423,7 @@ int hfsplus_cat_read_inode(struct inode
+ struct hfsplus_cat_file *file = &entry.file;
+
+ if (fd->entrylength < sizeof(struct hfsplus_cat_file))
+- /* panic? */;
++ {/* panic? */}
+ hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
+ sizeof(struct hfsplus_cat_file));
+
+@@ -479,7 +479,7 @@ int hfsplus_cat_write_inode(struct inode
+ struct hfsplus_cat_folder *folder = &entry.folder;
+
+ if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
+- /* panic? */;
++ {/* panic? */}
+ hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
+ sizeof(struct hfsplus_cat_folder));
+ /* simple node checks? */
+@@ -501,7 +501,7 @@ int hfsplus_cat_write_inode(struct inode
+ struct hfsplus_cat_file *file = &entry.file;
+
+ if (fd.entrylength < sizeof(struct hfsplus_cat_file))
+- /* panic? */;
++ {/* panic? */}
+ hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
+ sizeof(struct hfsplus_cat_file));
+ hfsplus_inode_write_fork(inode, &file->data_fork);
+diff -urNp linux-2.6.28.8/fs/jffs2/debug.h linux-2.6.28.8/fs/jffs2/debug.h
+--- linux-2.6.28.8/fs/jffs2/debug.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/jffs2/debug.h 2009-02-21 09:37:49.000000000 -0500
+@@ -52,13 +52,13 @@
+ #if CONFIG_JFFS2_FS_DEBUG > 0
+ #define D1(x) x
+ #else
+-#define D1(x)
++#define D1(x) do {} while (0);
+ #endif
+
+ #if CONFIG_JFFS2_FS_DEBUG > 1
+ #define D2(x) x
+ #else
+-#define D2(x)
++#define D2(x) do {} while (0);
+ #endif
+
+ /* The prefixes of JFFS2 messages */
+@@ -114,73 +114,73 @@
+ #ifdef JFFS2_DBG_READINODE_MESSAGES
+ #define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_readinode(fmt, ...)
++#define dbg_readinode(fmt, ...) do {} while (0)
+ #endif
+ #ifdef JFFS2_DBG_READINODE2_MESSAGES
+ #define dbg_readinode2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_readinode2(fmt, ...)
++#define dbg_readinode2(fmt, ...) do {} while (0)
+ #endif
+
+ /* Fragtree build debugging messages */
+ #ifdef JFFS2_DBG_FRAGTREE_MESSAGES
+ #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_fragtree(fmt, ...)
++#define dbg_fragtree(fmt, ...) do {} while (0)
+ #endif
+ #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
+ #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_fragtree2(fmt, ...)
++#define dbg_fragtree2(fmt, ...) do {} while (0)
+ #endif
+
+ /* Directory entry list manilulation debugging messages */
+ #ifdef JFFS2_DBG_DENTLIST_MESSAGES
+ #define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_dentlist(fmt, ...)
++#define dbg_dentlist(fmt, ...) do {} while (0)
+ #endif
+
+ /* Print the messages about manipulating node_refs */
+ #ifdef JFFS2_DBG_NODEREF_MESSAGES
+ #define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_noderef(fmt, ...)
++#define dbg_noderef(fmt, ...) do {} while (0)
+ #endif
+
+ /* Manipulations with the list of inodes (JFFS2 inocache) */
+ #ifdef JFFS2_DBG_INOCACHE_MESSAGES
+ #define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_inocache(fmt, ...)
++#define dbg_inocache(fmt, ...) do {} while (0)
+ #endif
+
+ /* Summary debugging messages */
+ #ifdef JFFS2_DBG_SUMMARY_MESSAGES
+ #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_summary(fmt, ...)
++#define dbg_summary(fmt, ...) do {} while (0)
+ #endif
+
+ /* File system build messages */
+ #ifdef JFFS2_DBG_FSBUILD_MESSAGES
+ #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_fsbuild(fmt, ...)
++#define dbg_fsbuild(fmt, ...) do {} while (0)
+ #endif
+
+ /* Watch the object allocations */
+ #ifdef JFFS2_DBG_MEMALLOC_MESSAGES
+ #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_memalloc(fmt, ...)
++#define dbg_memalloc(fmt, ...) do {} while (0)
+ #endif
+
+ /* Watch the XATTR subsystem */
+ #ifdef JFFS2_DBG_XATTR_MESSAGES
+ #define dbg_xattr(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
+ #else
+-#define dbg_xattr(fmt, ...)
++#define dbg_xattr(fmt, ...) do {} while (0)
+ #endif
+
+ /* "Sanity" checks */
+diff -urNp linux-2.6.28.8/fs/jffs2/erase.c linux-2.6.28.8/fs/jffs2/erase.c
+--- linux-2.6.28.8/fs/jffs2/erase.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/jffs2/erase.c 2009-02-21 09:37:49.000000000 -0500
+@@ -431,7 +431,8 @@ static void jffs2_mark_erased_block(stru
+ struct jffs2_unknown_node marker = {
+ .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
+ .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
+- .totlen = cpu_to_je32(c->cleanmarker_size)
++ .totlen = cpu_to_je32(c->cleanmarker_size),
++ .hdr_crc = cpu_to_je32(0)
+ };
+
+ jffs2_prealloc_raw_node_refs(c, jeb, 1);
+diff -urNp linux-2.6.28.8/fs/jffs2/summary.h linux-2.6.28.8/fs/jffs2/summary.h
+--- linux-2.6.28.8/fs/jffs2/summary.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/jffs2/summary.h 2009-02-21 09:37:49.000000000 -0500
+@@ -194,18 +194,18 @@ int jffs2_sum_scan_sumnode(struct jffs2_
+
+ #define jffs2_sum_active() (0)
+ #define jffs2_sum_init(a) (0)
+-#define jffs2_sum_exit(a)
+-#define jffs2_sum_disable_collecting(a)
++#define jffs2_sum_exit(a) do {} while (0)
++#define jffs2_sum_disable_collecting(a) do {} while (0)
+ #define jffs2_sum_is_disabled(a) (0)
+-#define jffs2_sum_reset_collected(a)
++#define jffs2_sum_reset_collected(a) do {} while (0)
+ #define jffs2_sum_add_kvec(a,b,c,d) (0)
+-#define jffs2_sum_move_collected(a,b)
++#define jffs2_sum_move_collected(a,b) do {} while (0)
+ #define jffs2_sum_write_sumnode(a) (0)
+-#define jffs2_sum_add_padding_mem(a,b)
+-#define jffs2_sum_add_inode_mem(a,b,c)
+-#define jffs2_sum_add_dirent_mem(a,b,c)
+-#define jffs2_sum_add_xattr_mem(a,b,c)
+-#define jffs2_sum_add_xref_mem(a,b,c)
++#define jffs2_sum_add_padding_mem(a,b) do {} while (0)
++#define jffs2_sum_add_inode_mem(a,b,c) do {} while (0)
++#define jffs2_sum_add_dirent_mem(a,b,c) do {} while (0)
++#define jffs2_sum_add_xattr_mem(a,b,c) do {} while (0)
++#define jffs2_sum_add_xref_mem(a,b,c) do {} while (0)
+ #define jffs2_sum_scan_sumnode(a,b,c,d,e) (0)
+
+ #endif /* CONFIG_JFFS2_SUMMARY */
+diff -urNp linux-2.6.28.8/fs/jffs2/wbuf.c linux-2.6.28.8/fs/jffs2/wbuf.c
+--- linux-2.6.28.8/fs/jffs2/wbuf.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/jffs2/wbuf.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1012,7 +1012,8 @@ static const struct jffs2_unknown_node o
+ {
+ .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
+ .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
+- .totlen = constant_cpu_to_je32(8)
++ .totlen = constant_cpu_to_je32(8),
++ .hdr_crc = constant_cpu_to_je32(0)
+ };
+
+ /*
+diff -urNp linux-2.6.28.8/fs/locks.c linux-2.6.28.8/fs/locks.c
+--- linux-2.6.28.8/fs/locks.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/locks.c 2009-02-21 09:37:49.000000000 -0500
+@@ -2006,16 +2006,16 @@ void locks_remove_flock(struct file *fil
+ return;
+
+ if (filp->f_op && filp->f_op->flock) {
+- struct file_lock fl = {
++ struct file_lock flock = {
+ .fl_pid = current->tgid,
+ .fl_file = filp,
+ .fl_flags = FL_FLOCK,
+ .fl_type = F_UNLCK,
+ .fl_end = OFFSET_MAX,
+ };
+- filp->f_op->flock(filp, F_SETLKW, &fl);
+- if (fl.fl_ops && fl.fl_ops->fl_release_private)
+- fl.fl_ops->fl_release_private(&fl);
++ filp->f_op->flock(filp, F_SETLKW, &flock);
++ if (flock.fl_ops && flock.fl_ops->fl_release_private)
++ flock.fl_ops->fl_release_private(&flock);
+ }
+
+ lock_kernel();
+diff -urNp linux-2.6.28.8/fs/namei.c linux-2.6.28.8/fs/namei.c
+--- linux-2.6.28.8/fs/namei.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/namei.c 2009-03-07 04:29:14.000000000 -0500
+@@ -633,7 +633,7 @@ static __always_inline int __do_follow_l
+ cookie = dentry->d_inode->i_op->follow_link(dentry, nd);
+ error = PTR_ERR(cookie);
+ if (!IS_ERR(cookie)) {
+- char *s = nd_get_link(nd);
++ const char *s = nd_get_link(nd);
+ error = 0;
+ if (s)
+ error = __vfs_follow_link(nd, s);
+@@ -664,6 +664,13 @@ static inline int do_follow_link(struct
+ err = security_inode_follow_link(path->dentry, nd);
+ if (err)
+ goto loop;
++
++ if (gr_handle_follow_link(path->dentry->d_parent->d_inode,
++ path->dentry->d_inode, path->dentry, nd->path.mnt)) {
++ err = -EACCES;
++ goto loop;
++ }
++
+ current->link_count++;
+ current->total_link_count++;
+ nd->depth++;
+@@ -1012,11 +1019,18 @@ return_reval:
+ break;
+ }
+ return_base:
++ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
++ path_put(&nd->path);
++ return -ENOENT;
++ }
+ return 0;
+ out_dput:
+ path_put_conditional(&next, nd);
+ break;
+ }
++ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt))
++ err = -ENOENT;
++
+ path_put(&nd->path);
+ return_err:
+ return err;
+@@ -1582,9 +1596,17 @@ static int __open_namei_create(struct na
+ int error;
+ struct dentry *dir = nd->path.dentry;
+
++ if (!gr_acl_handle_creat(path->dentry, nd->path.dentry, nd->path.mnt, flag, mode)) {
++ error = -EACCES;
++ goto out_unlock_dput;
++ }
++
+ if (!IS_POSIXACL(dir->d_inode))
+ mode &= ~current->fs->umask;
+ error = vfs_create(dir->d_inode, path->dentry, mode, nd);
++ if (!error)
++ gr_handle_create(path->dentry, nd->path.mnt);
++out_unlock_dput:
+ mutex_unlock(&dir->d_inode->i_mutex);
+ dput(nd->path.dentry);
+ nd->path.dentry = path->dentry;
+@@ -1665,6 +1687,17 @@ struct file *do_filp_open(int dfd, const
+ &nd, flag);
+ if (error)
+ return ERR_PTR(error);
++
++ if (gr_handle_rawio(nd.path.dentry->d_inode)) {
++ error = -EPERM;
++ goto exit;
++ }
++
++ if (!gr_acl_handle_open(nd.path.dentry, nd.path.mnt, flag)) {
++ error = -EACCES;
++ goto exit;
++ }
++
+ goto ok;
+ }
+
+@@ -1737,6 +1770,20 @@ do_last:
+ /*
+ * It already exists.
+ */
++
++ if (gr_handle_rawio(path.dentry->d_inode)) {
++ error = -EPERM;
++ goto exit_mutex_unlock;
++ }
++ if (!gr_acl_handle_open(path.dentry, nd.path.mnt, flag)) {
++ error = -EACCES;
++ goto exit_mutex_unlock;
++ }
++ if (gr_handle_fifo(path.dentry, nd.path.mnt, dir, flag, acc_mode)) {
++ error = -EACCES;
++ goto exit_mutex_unlock;
++ }
++
+ mutex_unlock(&dir->d_inode->i_mutex);
+ audit_inode(pathname, path.dentry);
+
+@@ -1822,6 +1869,13 @@ do_link:
+ error = security_inode_follow_link(path.dentry, &nd);
+ if (error)
+ goto exit_dput;
++
++ if (gr_handle_follow_link(path.dentry->d_parent->d_inode, path.dentry->d_inode,
++ path.dentry, nd.path.mnt)) {
++ error = -EACCES;
++ goto exit_dput;
++ }
++
+ error = __do_follow_link(&path, &nd);
+ if (error) {
+ /* Does someone understand code flow here? Or it is only
+@@ -1994,6 +2048,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const
+ error = may_mknod(mode);
+ if (error)
+ goto out_dput;
++
++ if (gr_handle_chroot_mknod(dentry, nd.path.mnt, mode)) {
++ error = -EPERM;
++ goto out_dput;
++ }
++
++ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) {
++ error = -EACCES;
++ goto out_dput;
++ }
++
+ error = mnt_want_write(nd.path.mnt);
+ if (error)
+ goto out_dput;
+@@ -2010,6 +2075,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const
+ break;
+ }
+ mnt_drop_write(nd.path.mnt);
++
++ if (!error)
++ gr_handle_create(dentry, nd.path.mnt);
+ out_dput:
+ dput(dentry);
+ out_unlock:
+@@ -2063,6 +2131,11 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const
+ if (IS_ERR(dentry))
+ goto out_unlock;
+
++ if (!gr_acl_handle_mkdir(dentry, nd.path.dentry, nd.path.mnt)) {
++ error = -EACCES;
++ goto out_dput;
++ }
++
+ if (!IS_POSIXACL(nd.path.dentry->d_inode))
+ mode &= ~current->fs->umask;
+ error = mnt_want_write(nd.path.mnt);
+@@ -2070,6 +2143,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const
+ goto out_dput;
+ error = vfs_mkdir(nd.path.dentry->d_inode, dentry, mode);
+ mnt_drop_write(nd.path.mnt);
++
++ if (!error)
++ gr_handle_create(dentry, nd.path.mnt);
++
+ out_dput:
+ dput(dentry);
+ out_unlock:
+@@ -2151,6 +2228,8 @@ static long do_rmdir(int dfd, const char
+ char * name;
+ struct dentry *dentry;
+ struct nameidata nd;
++ ino_t saved_ino = 0;
++ dev_t saved_dev = 0;
+
+ error = user_path_parent(dfd, pathname, &nd, &name);
+ if (error)
+@@ -2175,11 +2254,26 @@ static long do_rmdir(int dfd, const char
+ error = PTR_ERR(dentry);
+ if (IS_ERR(dentry))
+ goto exit2;
++
++ if (dentry->d_inode != NULL) {
++ if (dentry->d_inode->i_nlink <= 1) {
++ saved_ino = dentry->d_inode->i_ino;
++ saved_dev = dentry->d_inode->i_sb->s_dev;
++ }
++
++ if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
++ error = -EACCES;
++ goto exit3;
++ }
++ }
++
+ error = mnt_want_write(nd.path.mnt);
+ if (error)
+ goto exit3;
+ error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
+ mnt_drop_write(nd.path.mnt);
++ if (!error && (saved_dev || saved_ino))
++ gr_handle_delete(saved_ino, saved_dev);
+ exit3:
+ dput(dentry);
+ exit2:
+@@ -2239,6 +2333,8 @@ static long do_unlinkat(int dfd, const c
+ struct dentry *dentry;
+ struct nameidata nd;
+ struct inode *inode = NULL;
++ ino_t saved_ino = 0;
++ dev_t saved_dev = 0;
+
+ error = user_path_parent(dfd, pathname, &nd, &name);
+ if (error)
+@@ -2258,12 +2354,25 @@ static long do_unlinkat(int dfd, const c
+ if (nd.last.name[nd.last.len])
+ goto slashes;
+ inode = dentry->d_inode;
+- if (inode)
++ if (inode) {
++ if (inode->i_nlink <= 1) {
++ saved_ino = inode->i_ino;
++ saved_dev = inode->i_sb->s_dev;
++ }
++
+ atomic_inc(&inode->i_count);
++
++ if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
++ error = -EACCES;
++ goto exit2;
++ }
++ }
+ error = mnt_want_write(nd.path.mnt);
+ if (error)
+ goto exit2;
+ error = vfs_unlink(nd.path.dentry->d_inode, dentry);
++ if (!error && (saved_ino || saved_dev))
++ gr_handle_delete(saved_ino, saved_dev);
+ mnt_drop_write(nd.path.mnt);
+ exit2:
+ dput(dentry);
+@@ -2341,10 +2450,17 @@ SYSCALL_DEFINE3(symlinkat, const char __
+ if (IS_ERR(dentry))
+ goto out_unlock;
+
++ if (!gr_acl_handle_symlink(dentry, nd.path.dentry, nd.path.mnt, from)) {
++ error = -EACCES;
++ goto out_dput;
++ }
++
+ error = mnt_want_write(nd.path.mnt);
+ if (error)
+ goto out_dput;
+ error = vfs_symlink(nd.path.dentry->d_inode, dentry, from);
++ if (!error)
++ gr_handle_create(dentry, nd.path.mnt);
+ mnt_drop_write(nd.path.mnt);
+ out_dput:
+ dput(dentry);
+@@ -2437,10 +2553,26 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con
+ error = PTR_ERR(new_dentry);
+ if (IS_ERR(new_dentry))
+ goto out_unlock;
++
++ if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
++ old_path.dentry->d_inode,
++ old_path.dentry->d_inode->i_mode, to)) {
++ error = -EACCES;
++ goto out_dput;
++ }
++
++ if (!gr_acl_handle_link(new_dentry, nd.path.dentry, nd.path.mnt,
++ old_path.dentry, old_path.mnt, to)) {
++ error = -EACCES;
++ goto out_dput;
++ }
++
+ error = mnt_want_write(nd.path.mnt);
+ if (error)
+ goto out_dput;
+ error = vfs_link(old_path.dentry, nd.path.dentry->d_inode, new_dentry);
++ if (!error)
++ gr_handle_create(new_dentry, nd.path.mnt);
+ mnt_drop_write(nd.path.mnt);
+ out_dput:
+ dput(new_dentry);
+@@ -2673,11 +2805,21 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c
+ if (new_dentry == trap)
+ goto exit5;
+
++ error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
++ old_dentry, old_dir->d_inode, oldnd.path.mnt,
++ to);
++ if (error)
++ goto exit5;
++
+ error = mnt_want_write(oldnd.path.mnt);
+ if (error)
+ goto exit5;
+ error = vfs_rename(old_dir->d_inode, old_dentry,
+ new_dir->d_inode, new_dentry);
++ if (!error)
++ gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
++ new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0);
++
+ mnt_drop_write(oldnd.path.mnt);
+ exit5:
+ dput(new_dentry);
+diff -urNp linux-2.6.28.8/fs/namespace.c linux-2.6.28.8/fs/namespace.c
+--- linux-2.6.28.8/fs/namespace.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/namespace.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1094,6 +1094,8 @@ static int do_umount(struct vfsmount *mn
+ lock_kernel();
+ retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
+ unlock_kernel();
++
++ gr_log_remount(mnt->mnt_devname, retval);
+ }
+ up_write(&sb->s_umount);
+ return retval;
+@@ -1117,6 +1119,9 @@ static int do_umount(struct vfsmount *mn
+ security_sb_umount_busy(mnt);
+ up_write(&namespace_sem);
+ release_mounts(&umount_list);
++
++ gr_log_unmount(mnt->mnt_devname, retval);
++
+ return retval;
+ }
+
+@@ -1946,6 +1951,11 @@ long do_mount(char *dev_name, char *dir_
+ if (retval)
+ goto dput_out;
+
++ if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
++ retval = -EPERM;
++ goto dput_out;
++ }
++
+ if (flags & MS_REMOUNT)
+ retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
+ data_page);
+@@ -1960,6 +1970,9 @@ long do_mount(char *dev_name, char *dir_
+ dev_name, data_page);
+ dput_out:
+ path_put(&path);
++
++ gr_log_mount(dev_name, dir_name, retval);
++
+ return retval;
+ }
+
+@@ -2071,6 +2084,9 @@ SYSCALL_DEFINE5(mount, char __user *, de
+ if (retval < 0)
+ goto out3;
+
++ if (gr_handle_chroot_pivot())
++ return -EPERM;
++
+ lock_kernel();
+ retval = do_mount((char *)dev_page, dir_page, (char *)type_page,
+ flags, (void *)data_page);
+diff -urNp linux-2.6.28.8/fs/nfs/nfs4proc.c linux-2.6.28.8/fs/nfs/nfs4proc.c
+--- linux-2.6.28.8/fs/nfs/nfs4proc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/nfs/nfs4proc.c 2009-02-21 09:37:49.000000000 -0500
+@@ -653,7 +653,7 @@ static int _nfs4_do_open_reclaim(struct
+ static int nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state *state)
+ {
+ struct nfs_server *server = NFS_SERVER(state->inode);
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = _nfs4_do_open_reclaim(ctx, state);
+@@ -695,7 +695,7 @@ static int _nfs4_open_delegation_recall(
+
+ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ struct nfs_server *server = NFS_SERVER(state->inode);
+ int err;
+ do {
+@@ -988,7 +988,7 @@ static int _nfs4_open_expired(struct nfs
+ static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
+ {
+ struct nfs_server *server = NFS_SERVER(state->inode);
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ do {
+@@ -1090,7 +1090,7 @@ out_err:
+
+ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct path *path, int flags, struct iattr *sattr, struct rpc_cred *cred)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ struct nfs4_state *res;
+ int status;
+
+@@ -1181,7 +1181,7 @@ static int nfs4_do_setattr(struct inode
+ struct nfs4_state *state)
+ {
+ struct nfs_server *server = NFS_SERVER(inode);
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(server,
+@@ -1494,7 +1494,7 @@ static int _nfs4_server_capabilities(str
+
+ int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(server,
+@@ -1527,7 +1527,7 @@ static int _nfs4_lookup_root(struct nfs_
+ static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
+ struct nfs_fsinfo *info)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(server,
+@@ -1616,7 +1616,7 @@ static int _nfs4_proc_getattr(struct nfs
+
+ static int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(server,
+@@ -1704,7 +1704,7 @@ static int nfs4_proc_lookupfh(struct nfs
+ struct qstr *name, struct nfs_fh *fhandle,
+ struct nfs_fattr *fattr)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = _nfs4_proc_lookupfh(server, dirfh, name, fhandle, fattr);
+@@ -1733,7 +1733,7 @@ static int _nfs4_proc_lookup(struct inod
+
+ static int nfs4_proc_lookup(struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(dir),
+@@ -1797,7 +1797,7 @@ static int _nfs4_proc_access(struct inod
+
+ static int nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(inode),
+@@ -1852,7 +1852,7 @@ static int _nfs4_proc_readlink(struct in
+ static int nfs4_proc_readlink(struct inode *inode, struct page *page,
+ unsigned int pgbase, unsigned int pglen)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(inode),
+@@ -1949,7 +1949,7 @@ static int _nfs4_proc_remove(struct inod
+
+ static int nfs4_proc_remove(struct inode *dir, struct qstr *name)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(dir),
+@@ -2021,7 +2021,7 @@ static int _nfs4_proc_rename(struct inod
+ static int nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
+ struct inode *new_dir, struct qstr *new_name)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(old_dir),
+@@ -2068,7 +2068,7 @@ static int _nfs4_proc_link(struct inode
+
+ static int nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(inode),
+@@ -2159,7 +2159,7 @@ out:
+ static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry,
+ struct page *page, unsigned int len, struct iattr *sattr)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(dir),
+@@ -2190,7 +2190,7 @@ out:
+ static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
+ struct iattr *sattr)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(dir),
+@@ -2239,7 +2239,7 @@ static int _nfs4_proc_readdir(struct den
+ static int nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
+ u64 cookie, struct page *page, unsigned int count, int plus)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(dentry->d_inode),
+@@ -2287,7 +2287,7 @@ out:
+ static int nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
+ struct iattr *sattr, dev_t rdev)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(dir),
+@@ -2316,7 +2316,7 @@ static int _nfs4_proc_statfs(struct nfs_
+
+ static int nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *fsstat)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(server,
+@@ -2344,7 +2344,7 @@ static int _nfs4_do_fsinfo(struct nfs_se
+
+ static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ do {
+@@ -2387,7 +2387,7 @@ static int _nfs4_proc_pathconf(struct nf
+ static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
+ struct nfs_pathconf *pathconf)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ do {
+@@ -2674,7 +2674,7 @@ out_free:
+
+ static ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ ssize_t ret;
+ do {
+ ret = __nfs4_get_acl_uncached(inode, buf, buflen);
+@@ -2731,7 +2731,7 @@ static int __nfs4_proc_set_acl(struct in
+
+ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = nfs4_handle_exception(NFS_SERVER(inode),
+@@ -3022,7 +3022,7 @@ out:
+ int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync)
+ {
+ struct nfs_server *server = NFS_SERVER(inode);
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+ do {
+ err = _nfs4_proc_delegreturn(inode, cred, stateid, issync);
+@@ -3097,7 +3097,7 @@ out:
+
+ static int nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock *request)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ do {
+@@ -3447,7 +3447,7 @@ static int _nfs4_do_setlk(struct nfs4_st
+ static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request)
+ {
+ struct nfs_server *server = NFS_SERVER(state->inode);
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ do {
+@@ -3465,7 +3465,7 @@ static int nfs4_lock_reclaim(struct nfs4
+ static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request)
+ {
+ struct nfs_server *server = NFS_SERVER(state->inode);
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ err = nfs4_set_lock_state(state, request);
+@@ -3526,7 +3526,7 @@ out:
+
+ static int nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
+ {
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ do {
+@@ -3576,7 +3576,7 @@ nfs4_proc_lock(struct file *filp, int cm
+ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
+ {
+ struct nfs_server *server = NFS_SERVER(state->inode);
+- struct nfs4_exception exception = { };
++ struct nfs4_exception exception = {0, 0};
+ int err;
+
+ err = nfs4_set_lock_state(state, fl);
+diff -urNp linux-2.6.28.8/fs/nfsd/export.c linux-2.6.28.8/fs/nfsd/export.c
+--- linux-2.6.28.8/fs/nfsd/export.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/nfsd/export.c 2009-02-21 09:37:49.000000000 -0500
+@@ -472,7 +472,7 @@ static int secinfo_parse(char **mesg, ch
+ * probably discover the problem when someone fails to
+ * authenticate.
+ */
+- if (f->pseudoflavor < 0)
++ if ((s32)f->pseudoflavor < 0)
+ return -EINVAL;
+ err = get_int(mesg, &f->flags);
+ if (err)
+diff -urNp linux-2.6.28.8/fs/nls/nls_base.c linux-2.6.28.8/fs/nls/nls_base.c
+--- linux-2.6.28.8/fs/nls/nls_base.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/nls/nls_base.c 2009-02-21 09:37:49.000000000 -0500
+@@ -40,7 +40,7 @@ static const struct utf8_table utf8_tabl
+ {0xF8, 0xF0, 3*6, 0x1FFFFF, 0x10000, /* 4 byte sequence */},
+ {0xFC, 0xF8, 4*6, 0x3FFFFFF, 0x200000, /* 5 byte sequence */},
+ {0xFE, 0xFC, 5*6, 0x7FFFFFFF, 0x4000000, /* 6 byte sequence */},
+- {0, /* end of table */}
++ {0, 0, 0, 0, 0, /* end of table */}
+ };
+
+ int
+diff -urNp linux-2.6.28.8/fs/ntfs/file.c linux-2.6.28.8/fs/ntfs/file.c
+--- linux-2.6.28.8/fs/ntfs/file.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/ntfs/file.c 2009-02-21 09:37:49.000000000 -0500
+@@ -2291,6 +2291,6 @@ const struct inode_operations ntfs_file_
+ #endif /* NTFS_RW */
+ };
+
+-const struct file_operations ntfs_empty_file_ops = {};
++const struct file_operations ntfs_empty_file_ops;
+
+-const struct inode_operations ntfs_empty_inode_ops = {};
++const struct inode_operations ntfs_empty_inode_ops;
+diff -urNp linux-2.6.28.8/fs/open.c linux-2.6.28.8/fs/open.c
+--- linux-2.6.28.8/fs/open.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/open.c 2009-02-21 09:37:49.000000000 -0500
+@@ -205,6 +205,9 @@ int do_truncate(struct dentry *dentry, l
+ if (length < 0)
+ return -EINVAL;
+
++ if (filp && !gr_acl_handle_truncate(dentry, filp->f_path.mnt))
++ return -EACCES;
++
+ newattrs.ia_size = length;
+ newattrs.ia_valid = ATTR_SIZE | time_attrs;
+ if (filp) {
+@@ -510,6 +513,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, con
+ if (__mnt_is_readonly(path.mnt))
+ res = -EROFS;
+
++ if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
++ res = -EACCES;
++
+ out_path_release:
+ path_put(&path);
+ out:
+@@ -540,6 +546,8 @@ SYSCALL_DEFINE1(chdir, const char __user
+ if (error)
+ goto dput_and_out;
+
++ gr_log_chdir(path.dentry, path.mnt);
++
+ set_fs_pwd(current->fs, &path);
+
+ dput_and_out:
+@@ -566,6 +574,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd
+ goto out_putf;
+
+ error = inode_permission(inode, MAY_EXEC | MAY_ACCESS);
++
++ if (!error && !gr_chroot_fchdir(file->f_path.dentry, file->f_path.mnt))
++ error = -EPERM;
++
++ if (!error)
++ gr_log_chdir(file->f_path.dentry, file->f_path.mnt);
++
+ if (!error)
+ set_fs_pwd(current->fs, &file->f_path);
+ out_putf:
+@@ -591,7 +606,14 @@ SYSCALL_DEFINE1(chroot, const char __use
+ if (!capable(CAP_SYS_CHROOT))
+ goto dput_and_out;
+
++ if (gr_handle_chroot_chroot(path.dentry, path.mnt))
++ goto dput_and_out;
++
+ set_fs_root(current->fs, &path);
++
++ gr_handle_chroot_caps(current);
++ gr_handle_chroot_chdir(&path);
++
+ error = 0;
+ dput_and_out:
+ path_put(&path);
+@@ -619,13 +641,28 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd
+ err = mnt_want_write(file->f_path.mnt);
+ if (err)
+ goto out_putf;
++
++ if (!gr_acl_handle_fchmod(dentry, file->f_path.mnt, mode)) {
++ err = -EACCES;
++ goto out_drop_write;
++ }
++
+ mutex_lock(&inode->i_mutex);
+ if (mode == (mode_t) -1)
+ mode = inode->i_mode;
++
++ if (gr_handle_chroot_chmod(dentry, file->f_path.mnt, mode)) {
++ err = -EPERM;
++ mutex_unlock(&inode->i_mutex);
++ goto out_drop_write;
++ }
++
+ newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
+ newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+ err = notify_change(dentry, &newattrs);
+ mutex_unlock(&inode->i_mutex);
++
++out_drop_write:
+ mnt_drop_write(file->f_path.mnt);
+ out_putf:
+ fput(file);
+@@ -648,13 +685,28 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, cons
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto dput_and_out;
++
++ if (!gr_acl_handle_chmod(path.dentry, path.mnt, mode)) {
++ error = -EACCES;
++ goto out_drop_write;
++ }
++
+ mutex_lock(&inode->i_mutex);
+ if (mode == (mode_t) -1)
+ mode = inode->i_mode;
++
++ if (gr_handle_chroot_chmod(path.dentry, path.mnt, mode)) {
++ error = -EACCES;
++ mutex_unlock(&inode->i_mutex);
++ goto out_drop_write;
++ }
++
+ newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
+ newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+ error = notify_change(path.dentry, &newattrs);
+ mutex_unlock(&inode->i_mutex);
++
++out_drop_write:
+ mnt_drop_write(path.mnt);
+ dput_and_out:
+ path_put(&path);
+@@ -667,12 +719,15 @@ SYSCALL_DEFINE2(chmod, const char __user
+ return sys_fchmodat(AT_FDCWD, filename, mode);
+ }
+
+-static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
++static int chown_common(struct dentry * dentry, uid_t user, gid_t group, struct vfsmount *mnt)
+ {
+ struct inode *inode = dentry->d_inode;
+ int error;
+ struct iattr newattrs;
+
++ if (!gr_acl_handle_chown(dentry, mnt))
++ return -EACCES;
++
+ newattrs.ia_valid = ATTR_CTIME;
+ if (user != (uid_t) -1) {
+ newattrs.ia_valid |= ATTR_UID;
+@@ -703,7 +758,7 @@ SYSCALL_DEFINE3(chown, const char __user
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
+- error = chown_common(path.dentry, user, group);
++ error = chown_common(path.dentry, user, group, path.mnt);
+ mnt_drop_write(path.mnt);
+ out_release:
+ path_put(&path);
+@@ -728,7 +783,7 @@ SYSCALL_DEFINE5(fchownat, int, dfd, cons
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
+- error = chown_common(path.dentry, user, group);
++ error = chown_common(path.dentry, user, group, path.mnt);
+ mnt_drop_write(path.mnt);
+ out_release:
+ path_put(&path);
+@@ -747,7 +802,7 @@ SYSCALL_DEFINE3(lchown, const char __use
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
+- error = chown_common(path.dentry, user, group);
++ error = chown_common(path.dentry, user, group, path.mnt);
+ mnt_drop_write(path.mnt);
+ out_release:
+ path_put(&path);
+@@ -770,7 +825,7 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd
+ goto out_fput;
+ dentry = file->f_path.dentry;
+ audit_inode(NULL, dentry);
+- error = chown_common(dentry, user, group);
++ error = chown_common(dentry, user, group, file->f_path.mnt);
+ mnt_drop_write(file->f_path.mnt);
+ out_fput:
+ fput(file);
+diff -urNp linux-2.6.28.8/fs/pipe.c linux-2.6.28.8/fs/pipe.c
+--- linux-2.6.28.8/fs/pipe.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/fs/pipe.c 2009-03-07 14:13:22.000000000 -0500
+@@ -848,7 +848,7 @@ void free_pipe_info(struct inode *inode)
+ inode->i_pipe = NULL;
+ }
+
+-static struct vfsmount *pipe_mnt __read_mostly;
++struct vfsmount *pipe_mnt __read_mostly;
+ static int pipefs_delete_dentry(struct dentry *dentry)
+ {
+ /*
+diff -urNp linux-2.6.28.8/fs/proc/array.c linux-2.6.28.8/fs/proc/array.c
+--- linux-2.6.28.8/fs/proc/array.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/array.c 2009-02-21 09:37:49.000000000 -0500
+@@ -308,6 +308,21 @@ static inline void task_context_switch_c
+ p->nivcsw);
+ }
+
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++static inline void task_pax(struct seq_file *m, struct task_struct *p)
++{
++ if (p->mm)
++ seq_printf(m, "PaX:\t%c%c%c%c%c\n",
++ p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
++ p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
++ p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
++ p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
++ p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
++ else
++ seq_printf(m, "PaX:\t-----\n");
++}
++#endif
++
+ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task)
+ {
+@@ -327,9 +342,20 @@ int proc_pid_status(struct seq_file *m,
+ task_show_regs(m, task);
+ #endif
+ task_context_switch_counts(m, task);
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++ task_pax(m, task);
++#endif
++
+ return 0;
+ }
+
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
++ (_mm->pax_flags & MF_PAX_RANDMMAP || \
++ _mm->pax_flags & MF_PAX_SEGMEXEC))
++#endif
++
+ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task, int whole)
+ {
+@@ -422,6 +448,19 @@ static int do_task_stat(struct seq_file
+ gtime = task_gtime(task);
+ }
+
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ if (PAX_RAND_FLAGS(mm)) {
++ eip = 0;
++ esp = 0;
++ wchan = 0;
++ }
++#endif
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++ wchan = 0;
++ eip =0;
++ esp =0;
++#endif
++
+ /* scale priority and nice values from timeslices to -20..20 */
+ /* to make it look like a "normal" Unix priority/nice value */
+ priority = task_prio(task);
+@@ -462,9 +501,15 @@ static int do_task_stat(struct seq_file
+ vsize,
+ mm ? get_mm_rss(mm) : 0,
+ rsslim,
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ PAX_RAND_FLAGS(mm) ? 1 : (mm ? mm->start_code : 0),
++ PAX_RAND_FLAGS(mm) ? 1 : (mm ? mm->end_code : 0),
++ PAX_RAND_FLAGS(mm) ? 0 : (mm ? mm->start_stack : 0),
++#else
+ mm ? mm->start_code : 0,
+ mm ? mm->end_code : 0,
+ mm ? mm->start_stack : 0,
++#endif
+ esp,
+ eip,
+ /* The signal information here is obsolete.
+@@ -517,3 +562,10 @@ int proc_pid_statm(struct seq_file *m, s
+
+ return 0;
+ }
++
++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
++int proc_pid_ipaddr(struct task_struct *task, char *buffer)
++{
++ return sprintf(buffer, "%u.%u.%u.%u\n", NIPQUAD(task->signal->curr_ip));
++}
++#endif
+diff -urNp linux-2.6.28.8/fs/proc/base.c linux-2.6.28.8/fs/proc/base.c
+--- linux-2.6.28.8/fs/proc/base.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/base.c 2009-03-07 05:50:38.000000000 -0500
+@@ -225,6 +225,9 @@ static int check_mem_permission(struct t
+ if (task == current)
+ return 0;
+
++ if (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))
++ return -EPERM;
++
+ /*
+ * If current is actively ptrace'ing, and would also be
+ * permitted to freshly attach with ptrace now, permit it.
+@@ -302,15 +305,29 @@ out:
+ return res;
+ }
+
+-static int proc_pid_auxv(struct task_struct *task, char *buffer)
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
++ (_mm->pax_flags & MF_PAX_RANDMMAP || \
++ _mm->pax_flags & MF_PAX_SEGMEXEC))
++#endif
++
++static
++int proc_pid_auxv(struct task_struct *task, char *buffer)
+ {
+ int res = 0;
+ struct mm_struct *mm = get_task_mm(task);
+ if (mm) {
+ unsigned int nwords = 0;
+- do
++
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ if (PAX_RAND_FLAGS(mm)) {
++ mmput(mm);
++ return res;
++ }
++#endif
++ do {
+ nwords += 2;
+- while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
++ } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
+ res = nwords * sizeof(mm->saved_auxv[0]);
+ if (res > PAGE_SIZE)
+ res = PAGE_SIZE;
+@@ -502,7 +519,7 @@ static int proc_pid_limits(struct task_s
+ return count;
+ }
+
+-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+ static int proc_pid_syscall(struct task_struct *task, char *buffer)
+ {
+ long nr;
+@@ -1429,7 +1446,11 @@ static struct inode *proc_pid_make_inode
+ inode->i_gid = 0;
+ if (task_dumpable(task)) {
+ inode->i_uid = task->euid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
++#else
+ inode->i_gid = task->egid;
++#endif
+ }
+ security_task_to_inode(task, inode);
+
+@@ -1445,17 +1466,45 @@ static int pid_getattr(struct vfsmount *
+ {
+ struct inode *inode = dentry->d_inode;
+ struct task_struct *task;
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ struct task_struct *tmp = current;
++#endif
++
+ generic_fillattr(inode, stat);
+
+ rcu_read_lock();
+ stat->uid = 0;
+ stat->gid = 0;
+ task = pid_task(proc_pid(inode), PIDTYPE_PID);
+- if (task) {
++
++ if (task && (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))) {
++ rcu_read_unlock();
++ return -ENOENT;
++ }
++
++
++ if (task
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ && (!tmp->uid || (tmp->uid == task->uid)
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++ || in_group_p(CONFIG_GRKERNSEC_PROC_GID)
++#endif
++ )
++#endif
++ ) {
+ if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
++#endif
+ task_dumpable(task)) {
+ stat->uid = task->euid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++ stat->gid = CONFIG_GRKERNSEC_PROC_GID;
++#else
+ stat->gid = task->egid;
++#endif
+ }
+ }
+ rcu_read_unlock();
+@@ -1483,11 +1532,21 @@ static int pid_revalidate(struct dentry
+ {
+ struct inode *inode = dentry->d_inode;
+ struct task_struct *task = get_proc_task(inode);
++
+ if (task) {
+ if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
++#endif
+ task_dumpable(task)) {
+ inode->i_uid = task->euid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
++#else
+ inode->i_gid = task->egid;
++#endif
+ } else {
+ inode->i_uid = 0;
+ inode->i_gid = 0;
+@@ -1855,12 +1914,22 @@ static const struct file_operations proc
+ static int proc_fd_permission(struct inode *inode, int mask)
+ {
+ int rv;
++ struct task_struct *task;
+
+ rv = generic_permission(inode, mask, NULL);
+- if (rv == 0)
+- return 0;
++
+ if (task_pid(current) == proc_pid(inode))
+ rv = 0;
++
++ task = get_proc_task(inode);
++ if (task == NULL)
++ return rv;
++
++ if (gr_acl_handle_procpidmem(task))
++ rv = -EACCES;
++
++ put_task_struct(task);
++
+ return rv;
+ }
+
+@@ -1971,6 +2040,9 @@ static struct dentry *proc_pident_lookup
+ if (!task)
+ goto out_no_task;
+
++ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
++ goto out;
++
+ /*
+ * Yes, it does not scale. And it should not. Don't add
+ * new entries into /proc/<tgid>/ without very good reasons.
+@@ -2015,6 +2087,9 @@ static int proc_pident_readdir(struct fi
+ if (!task)
+ goto out_no_task;
+
++ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
++ goto out;
++
+ ret = 0;
+ i = filp->f_pos;
+ switch (i) {
+@@ -2377,6 +2452,9 @@ static struct dentry *proc_base_lookup(s
+ if (p > last)
+ goto out;
+
++ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
++ goto out;
++
+ error = proc_base_instantiate(dir, dentry, task, p);
+
+ out:
+@@ -2463,7 +2541,7 @@ static const struct pid_entry tgid_base_
+ #ifdef CONFIG_SCHED_DEBUG
+ REG("sched", S_IRUGO|S_IWUSR, pid_sched),
+ #endif
+-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+ INF("syscall", S_IRUSR, pid_syscall),
+ #endif
+ INF("cmdline", S_IRUGO, pid_cmdline),
+@@ -2518,6 +2596,9 @@ static const struct pid_entry tgid_base_
+ #ifdef CONFIG_TASK_IO_ACCOUNTING
+ INF("io", S_IRUGO, tgid_io_accounting),
+ #endif
++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
++ INF("ipaddr", S_IRUSR, pid_ipaddr),
++#endif
+ };
+
+ static int proc_tgid_base_readdir(struct file * filp,
+@@ -2647,7 +2728,14 @@ static struct dentry *proc_pid_instantia
+ if (!inode)
+ goto out;
+
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
++ inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
++#else
+ inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
++#endif
+ inode->i_op = &proc_tgid_base_inode_operations;
+ inode->i_fop = &proc_tgid_base_operations;
+ inode->i_flags|=S_IMMUTABLE;
+@@ -2689,7 +2777,11 @@ struct dentry *proc_pid_lookup(struct in
+ if (!task)
+ goto out;
+
++ if (gr_check_hidden_task(task))
++ goto out_put_task;
++
+ result = proc_pid_instantiate(dir, dentry, task, NULL);
++out_put_task:
+ put_task_struct(task);
+ out:
+ return result;
+@@ -2754,6 +2846,9 @@ int proc_pid_readdir(struct file * filp,
+ {
+ unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
+ struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ struct task_struct *tmp = current;
++#endif
+ struct tgid_iter iter;
+ struct pid_namespace *ns;
+
+@@ -2772,6 +2867,17 @@ int proc_pid_readdir(struct file * filp,
+ for (iter = next_tgid(ns, iter);
+ iter.task;
+ iter.tgid += 1, iter = next_tgid(ns, iter)) {
++ if (gr_pid_is_chrooted(iter.task) || gr_check_hidden_task(iter.task)
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ || (tmp->uid && (iter.task->uid != tmp->uid)
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++ && !in_group_p(CONFIG_GRKERNSEC_PROC_GID)
++#endif
++ )
++#endif
++ )
++ continue;
++
+ filp->f_pos = iter.tgid + TGID_OFFSET;
+ if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) {
+ put_task_struct(iter.task);
+@@ -2799,7 +2905,7 @@ static const struct pid_entry tid_base_s
+ #ifdef CONFIG_SCHED_DEBUG
+ REG("sched", S_IRUGO|S_IWUSR, pid_sched),
+ #endif
+-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+ INF("syscall", S_IRUSR, pid_syscall),
+ #endif
+ INF("cmdline", S_IRUGO, pid_cmdline),
+diff -urNp linux-2.6.28.8/fs/proc/cmdline.c linux-2.6.28.8/fs/proc/cmdline.c
+--- linux-2.6.28.8/fs/proc/cmdline.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/cmdline.c 2009-02-21 09:37:49.000000000 -0500
+@@ -23,7 +23,11 @@ static const struct file_operations cmdl
+
+ static int __init proc_cmdline_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++ proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
++#else
+ proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
++#endif
+ return 0;
+ }
+ module_init(proc_cmdline_init);
+diff -urNp linux-2.6.28.8/fs/proc/devices.c linux-2.6.28.8/fs/proc/devices.c
+--- linux-2.6.28.8/fs/proc/devices.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/devices.c 2009-02-21 09:37:49.000000000 -0500
+@@ -64,7 +64,11 @@ static const struct file_operations proc
+
+ static int __init proc_devices_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++ proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
++#else
+ proc_create("devices", 0, NULL, &proc_devinfo_operations);
++#endif
+ return 0;
+ }
+ module_init(proc_devices_init);
+diff -urNp linux-2.6.28.8/fs/proc/inode.c linux-2.6.28.8/fs/proc/inode.c
+--- linux-2.6.28.8/fs/proc/inode.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/inode.c 2009-02-21 09:37:49.000000000 -0500
+@@ -466,7 +466,11 @@ struct inode *proc_get_inode(struct supe
+ if (de->mode) {
+ inode->i_mode = de->mode;
+ inode->i_uid = de->uid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
++#else
+ inode->i_gid = de->gid;
++#endif
+ }
+ if (de->size)
+ inode->i_size = de->size;
+diff -urNp linux-2.6.28.8/fs/proc/internal.h linux-2.6.28.8/fs/proc/internal.h
+--- linux-2.6.28.8/fs/proc/internal.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/internal.h 2009-02-21 09:37:49.000000000 -0500
+@@ -53,6 +53,9 @@ extern int proc_pid_status(struct seq_fi
+ struct pid *pid, struct task_struct *task);
+ extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task);
++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
++extern int proc_pid_ipaddr(struct task_struct *task, char *buffer);
++#endif
+ extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
+
+ extern const struct file_operations proc_maps_operations;
+diff -urNp linux-2.6.28.8/fs/proc/Kconfig linux-2.6.28.8/fs/proc/Kconfig
+--- linux-2.6.28.8/fs/proc/Kconfig 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/Kconfig 2009-02-21 09:37:49.000000000 -0500
+@@ -30,12 +30,12 @@ config PROC_FS
+
+ config PROC_KCORE
+ bool "/proc/kcore support" if !ARM
+- depends on PROC_FS && MMU
++ depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
+
+ config PROC_VMCORE
+ bool "/proc/vmcore support (EXPERIMENTAL)"
+- depends on PROC_FS && CRASH_DUMP
+- default y
++ depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
++ default n
+ help
+ Exports the dump image of crashed kernel in ELF format.
+
+@@ -59,8 +59,8 @@ config PROC_SYSCTL
+ limited in memory.
+
+ config PROC_PAGE_MONITOR
+- default y
+- depends on PROC_FS && MMU
++ default n
++ depends on PROC_FS && MMU && !GRKERNSEC
+ bool "Enable /proc page monitoring" if EMBEDDED
+ help
+ Various /proc files exist to monitor process memory utilization:
+diff -urNp linux-2.6.28.8/fs/proc/kcore.c linux-2.6.28.8/fs/proc/kcore.c
+--- linux-2.6.28.8/fs/proc/kcore.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/kcore.c 2009-02-21 09:37:49.000000000 -0500
+@@ -404,10 +404,12 @@ read_kcore(struct file *file, char __use
+
+ static int __init proc_kcore_init(void)
+ {
++#if !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
+ if (proc_root_kcore)
+ proc_root_kcore->size =
+ (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
++#endif
+ return 0;
+ }
+ module_init(proc_kcore_init);
+diff -urNp linux-2.6.28.8/fs/proc/proc_net.c linux-2.6.28.8/fs/proc/proc_net.c
+--- linux-2.6.28.8/fs/proc/proc_net.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/proc_net.c 2009-02-21 09:37:49.000000000 -0500
+@@ -106,6 +106,14 @@ static struct net *get_proc_task_net(str
+ struct nsproxy *ns;
+ struct net *net = NULL;
+
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ if (current->fsuid)
++ return net;
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ if (current->fsuid && !in_group_p(CONFIG_GRKERNSEC_PROC_GID))
++ return net;
++#endif
++
+ rcu_read_lock();
+ task = pid_task(proc_pid(dir), PIDTYPE_PID);
+ if (task != NULL) {
+diff -urNp linux-2.6.28.8/fs/proc/proc_sysctl.c linux-2.6.28.8/fs/proc/proc_sysctl.c
+--- linux-2.6.28.8/fs/proc/proc_sysctl.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/proc_sysctl.c 2009-02-21 09:37:49.000000000 -0500
+@@ -7,6 +7,8 @@
+ #include <linux/security.h>
+ #include "internal.h"
+
++extern __u32 gr_handle_sysctl(const struct ctl_table *table, const int op);
++
+ static struct dentry_operations proc_sys_dentry_operations;
+ static const struct file_operations proc_sys_file_operations;
+ static const struct inode_operations proc_sys_inode_operations;
+@@ -110,6 +112,9 @@ static struct dentry *proc_sys_lookup(st
+ if (!p)
+ goto out;
+
++ if (gr_handle_sysctl(p, MAY_EXEC))
++ goto out;
++
+ err = ERR_PTR(-ENOMEM);
+ inode = proc_sys_make_inode(dir->i_sb, h ? h : head, p);
+ if (h)
+@@ -229,6 +234,9 @@ static int scan(struct ctl_table_header
+ if (*pos < file->f_pos)
+ continue;
+
++ if (gr_handle_sysctl(table, 0))
++ continue;
++
+ res = proc_sys_fill_cache(file, dirent, filldir, head, table);
+ if (res)
+ return res;
+@@ -345,6 +353,9 @@ static int proc_sys_getattr(struct vfsmo
+ if (IS_ERR(head))
+ return PTR_ERR(head);
+
++ if (table && gr_handle_sysctl(table, MAY_EXEC))
++ return -ENOENT;
++
+ generic_fillattr(inode, stat);
+ if (table)
+ stat->mode = (stat->mode & S_IFMT) | table->mode;
+diff -urNp linux-2.6.28.8/fs/proc/root.c linux-2.6.28.8/fs/proc/root.c
+--- linux-2.6.28.8/fs/proc/root.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/root.c 2009-02-21 09:37:49.000000000 -0500
+@@ -135,7 +135,15 @@ void __init proc_root_init(void)
+ #ifdef CONFIG_PROC_DEVICETREE
+ proc_device_tree_init();
+ #endif
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
++#endif
++#else
+ proc_mkdir("bus", NULL);
++#endif
+ proc_sys_init();
+ }
+
+diff -urNp linux-2.6.28.8/fs/proc/task_mmu.c linux-2.6.28.8/fs/proc/task_mmu.c
+--- linux-2.6.28.8/fs/proc/task_mmu.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/proc/task_mmu.c 2009-02-21 09:37:49.000000000 -0500
+@@ -46,15 +46,26 @@ void task_mem(struct seq_file *m, struct
+ "VmStk:\t%8lu kB\n"
+ "VmExe:\t%8lu kB\n"
+ "VmLib:\t%8lu kB\n"
+- "VmPTE:\t%8lu kB\n",
+- hiwater_vm << (PAGE_SHIFT-10),
++ "VmPTE:\t%8lu kB\n"
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++ "CsBase:\t%8lx\nCsLim:\t%8lx\n"
++#endif
++
++ ,hiwater_vm << (PAGE_SHIFT-10),
+ (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10),
+ mm->locked_vm << (PAGE_SHIFT-10),
+ hiwater_rss << (PAGE_SHIFT-10),
+ total_rss << (PAGE_SHIFT-10),
+ data << (PAGE_SHIFT-10),
+ mm->stack_vm << (PAGE_SHIFT-10), text, lib,
+- (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10);
++ (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++ , mm->context.user_cs_base, mm->context.user_cs_limit
++#endif
++
++ );
+ }
+
+ unsigned long task_vsize(struct mm_struct *mm)
+@@ -198,6 +209,12 @@ static int do_maps_open(struct inode *in
+ return ret;
+ }
+
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
++ (_mm->pax_flags & MF_PAX_RANDMMAP || \
++ _mm->pax_flags & MF_PAX_SEGMEXEC))
++#endif
++
+ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
+ {
+ struct mm_struct *mm = vma->vm_mm;
+@@ -214,13 +231,22 @@ static void show_map_vma(struct seq_file
+ }
+
+ seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start,
++ PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end,
++#else
+ vma->vm_start,
+ vma->vm_end,
++#endif
+ flags & VM_READ ? 'r' : '-',
+ flags & VM_WRITE ? 'w' : '-',
+ flags & VM_EXEC ? 'x' : '-',
+ flags & VM_MAYSHARE ? 's' : 'p',
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ PAX_RAND_FLAGS(mm) ? 0UL : ((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
++#else
+ ((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
++#endif
+ MAJOR(dev), MINOR(dev), ino, &len);
+
+ /*
+@@ -234,11 +260,11 @@ static void show_map_vma(struct seq_file
+ const char *name = arch_vma_name(vma);
+ if (!name) {
+ if (mm) {
+- if (vma->vm_start <= mm->start_brk &&
+- vma->vm_end >= mm->brk) {
++ if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
+ name = "[heap]";
+- } else if (vma->vm_start <= mm->start_stack &&
+- vma->vm_end >= mm->start_stack) {
++ } else if ((vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
++ (vma->vm_start <= mm->start_stack &&
++ vma->vm_end >= mm->start_stack)) {
+ name = "[stack]";
+ }
+ } else {
+@@ -381,9 +407,16 @@ static int show_smap(struct seq_file *m,
+ };
+
+ memset(&mss, 0, sizeof mss);
+- mss.vma = vma;
+- if (vma->vm_mm && !is_vm_hugetlb_page(vma))
+- walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
++
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ if (!PAX_RAND_FLAGS(vma->vm_mm)) {
++#endif
++ mss.vma = vma;
++ if (vma->vm_mm && !is_vm_hugetlb_page(vma))
++ walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ }
++#endif
+
+ show_map_vma(m, vma);
+
+@@ -397,7 +430,11 @@ static int show_smap(struct seq_file *m,
+ "Private_Dirty: %8lu kB\n"
+ "Referenced: %8lu kB\n"
+ "Swap: %8lu kB\n",
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++ PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
++#else
+ (vma->vm_end - vma->vm_start) >> 10,
++#endif
+ mss.resident >> 10,
+ (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
+ mss.shared_clean >> 10,
+diff -urNp linux-2.6.28.8/fs/readdir.c linux-2.6.28.8/fs/readdir.c
+--- linux-2.6.28.8/fs/readdir.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/readdir.c 2009-02-21 09:37:49.000000000 -0500
+@@ -16,6 +16,7 @@
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
+ #include <linux/unistd.h>
++#include <linux/namei.h>
+
+ #include <asm/uaccess.h>
+
+@@ -67,6 +68,7 @@ struct old_linux_dirent {
+
+ struct readdir_callback {
+ struct old_linux_dirent __user * dirent;
++ struct file * file;
+ int result;
+ };
+
+@@ -84,6 +86,10 @@ static int fillonedir(void * __buf, cons
+ buf->result = -EOVERFLOW;
+ return -EOVERFLOW;
+ }
++
++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++ return 0;
++
+ buf->result++;
+ dirent = buf->dirent;
+ if (!access_ok(VERIFY_WRITE, dirent,
+@@ -116,6 +122,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned in
+
+ buf.result = 0;
+ buf.dirent = dirent;
++ buf.file = file;
+
+ error = vfs_readdir(file, fillonedir, &buf);
+ if (buf.result)
+@@ -142,6 +149,7 @@ struct linux_dirent {
+ struct getdents_callback {
+ struct linux_dirent __user * current_dir;
+ struct linux_dirent __user * previous;
++ struct file * file;
+ int count;
+ int error;
+ };
+@@ -162,6 +170,10 @@ static int filldir(void * __buf, const c
+ buf->error = -EOVERFLOW;
+ return -EOVERFLOW;
+ }
++
++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++ return 0;
++
+ dirent = buf->previous;
+ if (dirent) {
+ if (__put_user(offset, &dirent->d_off))
+@@ -209,6 +221,7 @@ SYSCALL_DEFINE3(getdents, unsigned int,
+ buf.previous = NULL;
+ buf.count = count;
+ buf.error = 0;
++ buf.file = file;
+
+ error = vfs_readdir(file, filldir, &buf);
+ if (error >= 0)
+@@ -228,6 +241,7 @@ out:
+ struct getdents_callback64 {
+ struct linux_dirent64 __user * current_dir;
+ struct linux_dirent64 __user * previous;
++ struct file *file;
+ int count;
+ int error;
+ };
+@@ -242,6 +256,10 @@ static int filldir64(void * __buf, const
+ buf->error = -EINVAL; /* only used if we fail.. */
+ if (reclen > buf->count)
+ return -EINVAL;
++
++ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++ return 0;
++
+ dirent = buf->previous;
+ if (dirent) {
+ if (__put_user(offset, &dirent->d_off))
+@@ -289,6 +307,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int
+
+ buf.current_dir = dirent;
+ buf.previous = NULL;
++ buf.file = file;
+ buf.count = count;
+ buf.error = 0;
+
+diff -urNp linux-2.6.28.8/fs/select.c linux-2.6.28.8/fs/select.c
+--- linux-2.6.28.8/fs/select.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/select.c 2009-02-21 09:37:49.000000000 -0500
+@@ -19,6 +19,7 @@
+ #include <linux/module.h>
+ #include <linux/slab.h>
+ #include <linux/poll.h>
++#include <linux/security.h>
+ #include <linux/personality.h> /* for STICKY_TIMEOUTS */
+ #include <linux/file.h>
+ #include <linux/fdtable.h>
+@@ -733,6 +734,7 @@ int do_sys_poll(struct pollfd __user *uf
+ struct poll_list *walk = head;
+ unsigned long todo = nfds;
+
++ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
+ if (nfds > current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
+ return -EINVAL;
+
+diff -urNp linux-2.6.28.8/fs/smbfs/symlink.c linux-2.6.28.8/fs/smbfs/symlink.c
+--- linux-2.6.28.8/fs/smbfs/symlink.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/smbfs/symlink.c 2009-02-21 09:37:49.000000000 -0500
+@@ -55,7 +55,7 @@ static void *smb_follow_link(struct dent
+
+ static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
+ {
+- char *s = nd_get_link(nd);
++ const char *s = nd_get_link(nd);
+ if (!IS_ERR(s))
+ __putname(s);
+ }
+diff -urNp linux-2.6.28.8/fs/sysfs/symlink.c linux-2.6.28.8/fs/sysfs/symlink.c
+--- linux-2.6.28.8/fs/sysfs/symlink.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/sysfs/symlink.c 2009-02-21 09:37:49.000000000 -0500
+@@ -200,7 +200,7 @@ static void *sysfs_follow_link(struct de
+
+ static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
+ {
+- char *page = nd_get_link(nd);
++ const char *page = nd_get_link(nd);
+ if (!IS_ERR(page))
+ free_page((unsigned long)page);
+ }
+diff -urNp linux-2.6.28.8/fs/udf/balloc.c linux-2.6.28.8/fs/udf/balloc.c
+--- linux-2.6.28.8/fs/udf/balloc.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/udf/balloc.c 2009-02-21 09:37:49.000000000 -0500
+@@ -169,9 +169,7 @@ static void udf_bitmap_free_blocks(struc
+ unsigned long overflow;
+
+ mutex_lock(&sbi->s_alloc_mutex);
+- if (bloc.logicalBlockNum < 0 ||
+- (bloc.logicalBlockNum + count) >
+- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
++ if (bloc.logicalBlockNum + count > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
+ udf_debug("%d < %d || %d + %d > %d\n",
+ bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
+ sbi->s_partmaps[bloc.partitionReferenceNum].
+@@ -239,7 +237,7 @@ static int udf_bitmap_prealloc_blocks(st
+
+ mutex_lock(&sbi->s_alloc_mutex);
+ part_len = sbi->s_partmaps[partition].s_partition_len;
+- if (first_block < 0 || first_block >= part_len)
++ if (first_block >= part_len)
+ goto out;
+
+ if (first_block + block_count > part_len)
+@@ -300,7 +298,7 @@ static int udf_bitmap_new_block(struct s
+ mutex_lock(&sbi->s_alloc_mutex);
+
+ repeat:
+- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
++ if (goal >= sbi->s_partmaps[partition].s_partition_len)
+ goal = 0;
+
+ nr_groups = bitmap->s_nr_groups;
+@@ -438,9 +436,7 @@ static void udf_table_free_blocks(struct
+ struct udf_inode_info *iinfo;
+
+ mutex_lock(&sbi->s_alloc_mutex);
+- if (bloc.logicalBlockNum < 0 ||
+- (bloc.logicalBlockNum + count) >
+- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
++ if (bloc.logicalBlockNum + count > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
+ udf_debug("%d < %d || %d + %d > %d\n",
+ bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
+ sbi->s_partmaps[bloc.partitionReferenceNum].
+@@ -671,8 +667,7 @@ static int udf_table_prealloc_blocks(str
+ int8_t etype = -1;
+ struct udf_inode_info *iinfo;
+
+- if (first_block < 0 ||
+- first_block >= sbi->s_partmaps[partition].s_partition_len)
++ if (first_block >= sbi->s_partmaps[partition].s_partition_len)
+ return 0;
+
+ iinfo = UDF_I(table);
+@@ -750,7 +745,7 @@ static int udf_table_new_block(struct su
+ return newblock;
+
+ mutex_lock(&sbi->s_alloc_mutex);
+- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
++ if (goal >= sbi->s_partmaps[partition].s_partition_len)
+ goal = 0;
+
+ /* We search for the closest matching block to goal. If we find
+diff -urNp linux-2.6.28.8/fs/ufs/inode.c linux-2.6.28.8/fs/ufs/inode.c
+--- linux-2.6.28.8/fs/ufs/inode.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/ufs/inode.c 2009-02-21 09:37:49.000000000 -0500
+@@ -56,9 +56,7 @@ static int ufs_block_to_path(struct inod
+
+
+ UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks);
+- if (i_block < 0) {
+- ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0");
+- } else if (i_block < direct_blocks) {
++ if (i_block < direct_blocks) {
+ offsets[n++] = i_block;
+ } else if ((i_block -= direct_blocks) < indirect_blocks) {
+ offsets[n++] = UFS_IND_BLOCK;
+@@ -440,8 +438,6 @@ int ufs_getfrag_block(struct inode *inod
+ lock_kernel();
+
+ UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
+- if (fragment < 0)
+- goto abort_negative;
+ if (fragment >
+ ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb)
+ << uspi->s_fpbshift))
+@@ -504,10 +500,6 @@ abort:
+ unlock_kernel();
+ return err;
+
+-abort_negative:
+- ufs_warning(sb, "ufs_get_block", "block < 0");
+- goto abort;
+-
+ abort_too_big:
+ ufs_warning(sb, "ufs_get_block", "block > big");
+ goto abort;
+diff -urNp linux-2.6.28.8/fs/utimes.c linux-2.6.28.8/fs/utimes.c
+--- linux-2.6.28.8/fs/utimes.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/utimes.c 2009-02-21 09:37:49.000000000 -0500
+@@ -1,6 +1,7 @@
+ #include <linux/compiler.h>
+ #include <linux/file.h>
+ #include <linux/fs.h>
++#include <linux/security.h>
+ #include <linux/linkage.h>
+ #include <linux/mount.h>
+ #include <linux/namei.h>
+@@ -101,6 +102,12 @@ static int utimes_common(struct path *pa
+ goto mnt_drop_write_and_out;
+ }
+ }
++
++ if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
++ error = -EACCES;
++ goto mnt_drop_write_and_out;
++ }
++
+ mutex_lock(&inode->i_mutex);
+ error = notify_change(path->dentry, &newattrs);
+ mutex_unlock(&inode->i_mutex);
+diff -urNp linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c
+--- linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c 2009-02-21 09:37:49.000000000 -0500
+@@ -500,7 +500,7 @@ xfs_vn_put_link(
+ struct nameidata *nd,
+ void *p)
+ {
+- char *s = nd_get_link(nd);
++ const char *s = nd_get_link(nd);
+
+ if (!IS_ERR(s))
+ kfree(s);
+diff -urNp linux-2.6.28.8/fs/xfs/xfs_bmap.c linux-2.6.28.8/fs/xfs/xfs_bmap.c
+--- linux-2.6.28.8/fs/xfs/xfs_bmap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/fs/xfs/xfs_bmap.c 2009-02-21 09:37:49.000000000 -0500
+@@ -360,7 +360,7 @@ xfs_bmap_validate_ret(
+ int nmap,
+ int ret_nmap);
+ #else
+-#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
++#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do {} while (0)
+ #endif /* DEBUG */
+
+ #if defined(XFS_RW_TRACE)
+diff -urNp linux-2.6.28.8/grsecurity/gracl_alloc.c linux-2.6.28.8/grsecurity/gracl_alloc.c
+--- linux-2.6.28.8/grsecurity/gracl_alloc.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_alloc.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,91 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++
++static unsigned long alloc_stack_next = 1;
++static unsigned long alloc_stack_size = 1;
++static void **alloc_stack;
++
++static __inline__ int
++alloc_pop(void)
++{
++ if (alloc_stack_next == 1)
++ return 0;
++
++ kfree(alloc_stack[alloc_stack_next - 2]);
++
++ alloc_stack_next--;
++
++ return 1;
++}
++
++static __inline__ void
++alloc_push(void *buf)
++{
++ if (alloc_stack_next >= alloc_stack_size)
++ BUG();
++
++ alloc_stack[alloc_stack_next - 1] = buf;
++
++ alloc_stack_next++;
++
++ return;
++}
++
++void *
++acl_alloc(unsigned long len)
++{
++ void *ret;
++
++ if (len > PAGE_SIZE)
++ BUG();
++
++ ret = kmalloc(len, GFP_KERNEL);
++
++ if (ret)
++ alloc_push(ret);
++
++ return ret;
++}
++
++void
++acl_free_all(void)
++{
++ if (gr_acl_is_enabled() || !alloc_stack)
++ return;
++
++ while (alloc_pop()) ;
++
++ if (alloc_stack) {
++ if ((alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
++ kfree(alloc_stack);
++ else
++ vfree(alloc_stack);
++ }
++
++ alloc_stack = NULL;
++ alloc_stack_size = 1;
++ alloc_stack_next = 1;
++
++ return;
++}
++
++int
++acl_alloc_stack_init(unsigned long size)
++{
++ if ((size * sizeof (void *)) <= PAGE_SIZE)
++ alloc_stack =
++ (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
++ else
++ alloc_stack = (void **) vmalloc(size * sizeof (void *));
++
++ alloc_stack_size = size;
++
++ if (!alloc_stack)
++ return 0;
++ else
++ return 1;
++}
+diff -urNp linux-2.6.28.8/grsecurity/gracl.c linux-2.6.28.8/grsecurity/gracl.c
+--- linux-2.6.28.8/grsecurity/gracl.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,3722 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/namei.h>
++#include <linux/mount.h>
++#include <linux/tty.h>
++#include <linux/proc_fs.h>
++#include <linux/smp_lock.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/types.h>
++#include <linux/sysctl.h>
++#include <linux/netdevice.h>
++#include <linux/ptrace.h>
++#include <linux/gracl.h>
++#include <linux/gralloc.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/pid_namespace.h>
++#include <linux/fdtable.h>
++#include <linux/percpu.h>
++
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <asm/mman.h>
++
++static struct acl_role_db acl_role_set;
++static struct name_db name_set;
++static struct inodev_db inodev_set;
++
++/* for keeping track of userspace pointers used for subjects, so we
++ can share references in the kernel as well
++*/
++
++static struct dentry *real_root;
++static struct vfsmount *real_root_mnt;
++
++static struct acl_subj_map_db subj_map_set;
++
++static struct acl_role_label *default_role;
++
++static u16 acl_sp_role_value;
++
++extern char *gr_shared_page[4];
++static DECLARE_MUTEX(gr_dev_sem);
++DEFINE_RWLOCK(gr_inode_lock);
++
++struct gr_arg *gr_usermode;
++
++static unsigned int gr_status = GR_STATUS_INIT;
++
++extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
++extern void gr_clear_learn_entries(void);
++
++#ifdef CONFIG_GRKERNSEC_RESLOG
++extern void gr_log_resource(const struct task_struct *task,
++ const int res, const unsigned long wanted, const int gt);
++#endif
++
++unsigned char *gr_system_salt;
++unsigned char *gr_system_sum;
++
++static struct sprole_pw **acl_special_roles = NULL;
++static __u16 num_sprole_pws = 0;
++
++static struct acl_role_label *kernel_role = NULL;
++
++static unsigned int gr_auth_attempts = 0;
++static unsigned long gr_auth_expires = 0UL;
++
++extern struct vfsmount *sock_mnt;
++extern struct vfsmount *pipe_mnt;
++extern struct vfsmount *shm_mnt;
++static struct acl_object_label *fakefs_obj;
++
++extern int gr_init_uidset(void);
++extern void gr_free_uidset(void);
++extern void gr_remove_uid(uid_t uid);
++extern int gr_find_uid(uid_t uid);
++
++__inline__ int
++gr_acl_is_enabled(void)
++{
++ return (gr_status & GR_READY);
++}
++
++char gr_roletype_to_char(void)
++{
++ switch (current->role->roletype &
++ (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
++ GR_ROLE_SPECIAL)) {
++ case GR_ROLE_DEFAULT:
++ return 'D';
++ case GR_ROLE_USER:
++ return 'U';
++ case GR_ROLE_GROUP:
++ return 'G';
++ case GR_ROLE_SPECIAL:
++ return 'S';
++ }
++
++ return 'X';
++}
++
++__inline__ int
++gr_acl_tpe_check(void)
++{
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++ if (current->role->roletype & GR_ROLE_TPE)
++ return 1;
++ else
++ return 0;
++}
++
++int
++gr_handle_rawio(const struct inode *inode)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++ if (inode && S_ISBLK(inode->i_mode) &&
++ grsec_enable_chroot_caps && proc_is_chrooted(current) &&
++ !capable(CAP_SYS_RAWIO))
++ return 1;
++#endif
++ return 0;
++}
++
++static int
++gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
++{
++ int i;
++ unsigned long *l1;
++ unsigned long *l2;
++ unsigned char *c1;
++ unsigned char *c2;
++ int num_longs;
++
++ if (likely(lena != lenb))
++ return 0;
++
++ l1 = (unsigned long *)a;
++ l2 = (unsigned long *)b;
++
++ num_longs = lena / sizeof(unsigned long);
++
++ for (i = num_longs; i--; l1++, l2++) {
++ if (unlikely(*l1 != *l2))
++ return 0;
++ }
++
++ c1 = (unsigned char *) l1;
++ c2 = (unsigned char *) l2;
++
++ i = lena - (num_longs * sizeof(unsigned long));
++
++ for (; i--; c1++, c2++) {
++ if (unlikely(*c1 != *c2))
++ return 0;
++ }
++
++ return 1;
++}
++
++static char * __our_d_path(struct dentry *dentry, struct vfsmount *vfsmnt,
++ struct dentry *root, struct vfsmount *rootmnt,
++ char *buffer, int buflen)
++{
++ char * end = buffer+buflen;
++ char * retval;
++ int namelen;
++
++ *--end = '\0';
++ buflen--;
++
++ if (buflen < 1)
++ goto Elong;
++ /* Get '/' right */
++ retval = end-1;
++ *retval = '/';
++
++ for (;;) {
++ struct dentry * parent;
++
++ if (dentry == root && vfsmnt == rootmnt)
++ break;
++ if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
++ /* Global root? */
++ spin_lock(&vfsmount_lock);
++ if (vfsmnt->mnt_parent == vfsmnt) {
++ spin_unlock(&vfsmount_lock);
++ goto global_root;
++ }
++ dentry = vfsmnt->mnt_mountpoint;
++ vfsmnt = vfsmnt->mnt_parent;
++ spin_unlock(&vfsmount_lock);
++ continue;
++ }
++ parent = dentry->d_parent;
++ prefetch(parent);
++ namelen = dentry->d_name.len;
++ buflen -= namelen + 1;
++ if (buflen < 0)
++ goto Elong;
++ end -= namelen;
++ memcpy(end, dentry->d_name.name, namelen);
++ *--end = '/';
++ retval = end;
++ dentry = parent;
++ }
++
++ return retval;
++
++global_root:
++ namelen = dentry->d_name.len;
++ buflen -= namelen;
++ if (buflen < 0)
++ goto Elong;
++ retval -= namelen-1; /* hit the slash */
++ memcpy(retval, dentry->d_name.name, namelen);
++ return retval;
++Elong:
++ return ERR_PTR(-ENAMETOOLONG);
++}
++
++static char *
++gen_full_path(struct dentry *dentry, struct vfsmount *vfsmnt,
++ struct dentry *root, struct vfsmount *rootmnt, char *buf, int buflen)
++{
++ char *retval;
++
++ retval = __our_d_path(dentry, vfsmnt, root, rootmnt, buf, buflen);
++ if (unlikely(IS_ERR(retval)))
++ retval = strcpy(buf, "<path too long>");
++ else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
++ retval[1] = '\0';
++
++ return retval;
++}
++
++static char *
++__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
++ char *buf, int buflen)
++{
++ char *res;
++
++ /* we can use real_root, real_root_mnt, because this is only called
++ by the RBAC system */
++ res = gen_full_path((struct dentry *)dentry, (struct vfsmount *)vfsmnt, real_root, real_root_mnt, buf, buflen);
++
++ return res;
++}
++
++static char *
++d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
++ char *buf, int buflen)
++{
++ char *res;
++ struct dentry *root;
++ struct vfsmount *rootmnt;
++ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper;
++
++ /* we can't use real_root, real_root_mnt, because they belong only to the RBAC system */
++ read_lock(&reaper->fs->lock);
++ root = dget(reaper->fs->root.dentry);
++ rootmnt = mntget(reaper->fs->root.mnt);
++ read_unlock(&reaper->fs->lock);
++
++ spin_lock(&dcache_lock);
++ res = gen_full_path((struct dentry *)dentry, (struct vfsmount *)vfsmnt, root, rootmnt, buf, buflen);
++ spin_unlock(&dcache_lock);
++
++ dput(root);
++ mntput(rootmnt);
++ return res;
++}
++
++static char *
++gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ char *ret;
++ spin_lock(&dcache_lock);
++ ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
++ PAGE_SIZE);
++ spin_unlock(&dcache_lock);
++ return ret;
++}
++
++char *
++gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
++ PAGE_SIZE);
++}
++
++char *
++gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
++ PAGE_SIZE);
++}
++
++char *
++gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
++ PAGE_SIZE);
++}
++
++char *
++gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
++ PAGE_SIZE);
++}
++
++char *
++gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
++ PAGE_SIZE);
++}
++
++__inline__ __u32
++to_gr_audit(const __u32 reqmode)
++{
++ /* masks off auditable permission flags, then shifts them to create
++ auditing flags, and adds the special case of append auditing if
++ we're requesting write */
++ return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
++}
++
++struct acl_subject_label *
++lookup_subject_map(const struct acl_subject_label *userp)
++{
++ unsigned int index = shash(userp, subj_map_set.s_size);
++ struct subject_map *match;
++
++ match = subj_map_set.s_hash[index];
++
++ while (match && match->user != userp)
++ match = match->next;
++
++ if (match != NULL)
++ return match->kernel;
++ else
++ return NULL;
++}
++
++static void
++insert_subj_map_entry(struct subject_map *subjmap)
++{
++ unsigned int index = shash(subjmap->user, subj_map_set.s_size);
++ struct subject_map **curr;
++
++ subjmap->prev = NULL;
++
++ curr = &subj_map_set.s_hash[index];
++ if (*curr != NULL)
++ (*curr)->prev = subjmap;
++
++ subjmap->next = *curr;
++ *curr = subjmap;
++
++ return;
++}
++
++static struct acl_role_label *
++lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
++ const gid_t gid)
++{
++ unsigned int index = rhash(uid, GR_ROLE_USER, acl_role_set.r_size);
++ struct acl_role_label *match;
++ struct role_allowed_ip *ipp;
++ unsigned int x;
++
++ match = acl_role_set.r_hash[index];
++
++ while (match) {
++ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
++ for (x = 0; x < match->domain_child_num; x++) {
++ if (match->domain_children[x] == uid)
++ goto found;
++ }
++ } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
++ break;
++ match = match->next;
++ }
++found:
++ if (match == NULL) {
++ try_group:
++ index = rhash(gid, GR_ROLE_GROUP, acl_role_set.r_size);
++ match = acl_role_set.r_hash[index];
++
++ while (match) {
++ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
++ for (x = 0; x < match->domain_child_num; x++) {
++ if (match->domain_children[x] == gid)
++ goto found2;
++ }
++ } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
++ break;
++ match = match->next;
++ }
++found2:
++ if (match == NULL)
++ match = default_role;
++ if (match->allowed_ips == NULL)
++ return match;
++ else {
++ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
++ if (likely
++ ((ntohl(task->signal->curr_ip) & ipp->netmask) ==
++ (ntohl(ipp->addr) & ipp->netmask)))
++ return match;
++ }
++ match = default_role;
++ }
++ } else if (match->allowed_ips == NULL) {
++ return match;
++ } else {
++ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
++ if (likely
++ ((ntohl(task->signal->curr_ip) & ipp->netmask) ==
++ (ntohl(ipp->addr) & ipp->netmask)))
++ return match;
++ }
++ goto try_group;
++ }
++
++ return match;
++}
++
++struct acl_subject_label *
++lookup_acl_subj_label(const ino_t ino, const dev_t dev,
++ const struct acl_role_label *role)
++{
++ unsigned int index = fhash(ino, dev, role->subj_hash_size);
++ struct acl_subject_label *match;
++
++ match = role->subj_hash[index];
++
++ while (match && (match->inode != ino || match->device != dev ||
++ (match->mode & GR_DELETED))) {
++ match = match->next;
++ }
++
++ if (match && !(match->mode & GR_DELETED))
++ return match;
++ else
++ return NULL;
++}
++
++static struct acl_object_label *
++lookup_acl_obj_label(const ino_t ino, const dev_t dev,
++ const struct acl_subject_label *subj)
++{
++ unsigned int index = fhash(ino, dev, subj->obj_hash_size);
++ struct acl_object_label *match;
++
++ match = subj->obj_hash[index];
++
++ while (match && (match->inode != ino || match->device != dev ||
++ (match->mode & GR_DELETED))) {
++ match = match->next;
++ }
++
++ if (match && !(match->mode & GR_DELETED))
++ return match;
++ else
++ return NULL;
++}
++
++static struct acl_object_label *
++lookup_acl_obj_label_create(const ino_t ino, const dev_t dev,
++ const struct acl_subject_label *subj)
++{
++ unsigned int index = fhash(ino, dev, subj->obj_hash_size);
++ struct acl_object_label *match;
++
++ match = subj->obj_hash[index];
++
++ while (match && (match->inode != ino || match->device != dev ||
++ !(match->mode & GR_DELETED))) {
++ match = match->next;
++ }
++
++ if (match && (match->mode & GR_DELETED))
++ return match;
++
++ match = subj->obj_hash[index];
++
++ while (match && (match->inode != ino || match->device != dev ||
++ (match->mode & GR_DELETED))) {
++ match = match->next;
++ }
++
++ if (match && !(match->mode & GR_DELETED))
++ return match;
++ else
++ return NULL;
++}
++
++static struct name_entry *
++lookup_name_entry(const char *name)
++{
++ unsigned int len = strlen(name);
++ unsigned int key = full_name_hash(name, len);
++ unsigned int index = key % name_set.n_size;
++ struct name_entry *match;
++
++ match = name_set.n_hash[index];
++
++ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
++ match = match->next;
++
++ return match;
++}
++
++static struct name_entry *
++lookup_name_entry_create(const char *name)
++{
++ unsigned int len = strlen(name);
++ unsigned int key = full_name_hash(name, len);
++ unsigned int index = key % name_set.n_size;
++ struct name_entry *match;
++
++ match = name_set.n_hash[index];
++
++ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
++ !match->deleted))
++ match = match->next;
++
++ if (match && match->deleted)
++ return match;
++
++ match = name_set.n_hash[index];
++
++ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
++ match->deleted))
++ match = match->next;
++
++ if (match && !match->deleted)
++ return match;
++ else
++ return NULL;
++}
++
++static struct inodev_entry *
++lookup_inodev_entry(const ino_t ino, const dev_t dev)
++{
++ unsigned int index = fhash(ino, dev, inodev_set.i_size);
++ struct inodev_entry *match;
++
++ match = inodev_set.i_hash[index];
++
++ while (match && (match->nentry->inode != ino || match->nentry->device != dev))
++ match = match->next;
++
++ return match;
++}
++
++static void
++insert_inodev_entry(struct inodev_entry *entry)
++{
++ unsigned int index = fhash(entry->nentry->inode, entry->nentry->device,
++ inodev_set.i_size);
++ struct inodev_entry **curr;
++
++ entry->prev = NULL;
++
++ curr = &inodev_set.i_hash[index];
++ if (*curr != NULL)
++ (*curr)->prev = entry;
++
++ entry->next = *curr;
++ *curr = entry;
++
++ return;
++}
++
++static void
++__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
++{
++ unsigned int index =
++ rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), acl_role_set.r_size);
++ struct acl_role_label **curr;
++
++ role->prev = NULL;
++
++ curr = &acl_role_set.r_hash[index];
++ if (*curr != NULL)
++ (*curr)->prev = role;
++
++ role->next = *curr;
++ *curr = role;
++
++ return;
++}
++
++static void
++insert_acl_role_label(struct acl_role_label *role)
++{
++ int i;
++
++ if (role->roletype & GR_ROLE_DOMAIN) {
++ for (i = 0; i < role->domain_child_num; i++)
++ __insert_acl_role_label(role, role->domain_children[i]);
++ } else
++ __insert_acl_role_label(role, role->uidgid);
++}
++
++static int
++insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted)
++{
++ struct name_entry **curr, *nentry;
++ struct inodev_entry *ientry;
++ unsigned int len = strlen(name);
++ unsigned int key = full_name_hash(name, len);
++ unsigned int index = key % name_set.n_size;
++
++ curr = &name_set.n_hash[index];
++
++ while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
++ curr = &((*curr)->next);
++
++ if (*curr != NULL)
++ return 1;
++
++ nentry = acl_alloc(sizeof (struct name_entry));
++ if (nentry == NULL)
++ return 0;
++ ientry = acl_alloc(sizeof (struct inodev_entry));
++ if (ientry == NULL)
++ return 0;
++ ientry->nentry = nentry;
++
++ nentry->key = key;
++ nentry->name = name;
++ nentry->inode = inode;
++ nentry->device = device;
++ nentry->len = len;
++ nentry->deleted = deleted;
++
++ nentry->prev = NULL;
++ curr = &name_set.n_hash[index];
++ if (*curr != NULL)
++ (*curr)->prev = nentry;
++ nentry->next = *curr;
++ *curr = nentry;
++
++ /* insert us into the table searchable by inode/dev */
++ insert_inodev_entry(ientry);
++
++ return 1;
++}
++
++static void
++insert_acl_obj_label(struct acl_object_label *obj,
++ struct acl_subject_label *subj)
++{
++ unsigned int index =
++ fhash(obj->inode, obj->device, subj->obj_hash_size);
++ struct acl_object_label **curr;
++
++
++ obj->prev = NULL;
++
++ curr = &subj->obj_hash[index];
++ if (*curr != NULL)
++ (*curr)->prev = obj;
++
++ obj->next = *curr;
++ *curr = obj;
++
++ return;
++}
++
++static void
++insert_acl_subj_label(struct acl_subject_label *obj,
++ struct acl_role_label *role)
++{
++ unsigned int index = fhash(obj->inode, obj->device, role->subj_hash_size);
++ struct acl_subject_label **curr;
++
++ obj->prev = NULL;
++
++ curr = &role->subj_hash[index];
++ if (*curr != NULL)
++ (*curr)->prev = obj;
++
++ obj->next = *curr;
++ *curr = obj;
++
++ return;
++}
++
++/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
++
++static void *
++create_table(__u32 * len, int elementsize)
++{
++ unsigned int table_sizes[] = {
++ 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
++ 32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
++ 4194301, 8388593, 16777213, 33554393, 67108859, 134217689,
++ 268435399, 536870909, 1073741789, 2147483647
++ };
++ void *newtable = NULL;
++ unsigned int pwr = 0;
++
++ while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
++ table_sizes[pwr] <= *len)
++ pwr++;
++
++ if (table_sizes[pwr] <= *len)
++ return newtable;
++
++ if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
++ newtable =
++ kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
++ else
++ newtable = vmalloc(table_sizes[pwr] * elementsize);
++
++ *len = table_sizes[pwr];
++
++ return newtable;
++}
++
++static int
++init_variables(const struct gr_arg *arg)
++{
++ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper;
++ unsigned int stacksize;
++
++ subj_map_set.s_size = arg->role_db.num_subjects;
++ acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
++ name_set.n_size = arg->role_db.num_objects;
++ inodev_set.i_size = arg->role_db.num_objects;
++
++ if (!subj_map_set.s_size || !acl_role_set.r_size ||
++ !name_set.n_size || !inodev_set.i_size)
++ return 1;
++
++ if (!gr_init_uidset())
++ return 1;
++
++ /* set up the stack that holds allocation info */
++
++ stacksize = arg->role_db.num_pointers + 5;
++
++ if (!acl_alloc_stack_init(stacksize))
++ return 1;
++
++ /* grab reference for the real root dentry and vfsmount */
++ read_lock(&reaper->fs->lock);
++ real_root_mnt = mntget(reaper->fs->root.mnt);
++ real_root = dget(reaper->fs->root.dentry);
++ read_unlock(&reaper->fs->lock);
++
++ fakefs_obj = acl_alloc(sizeof(struct acl_object_label));
++ if (fakefs_obj == NULL)
++ return 1;
++ fakefs_obj->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
++
++ subj_map_set.s_hash =
++ (struct subject_map **) create_table(&subj_map_set.s_size, sizeof(void *));
++ acl_role_set.r_hash =
++ (struct acl_role_label **) create_table(&acl_role_set.r_size, sizeof(void *));
++ name_set.n_hash = (struct name_entry **) create_table(&name_set.n_size, sizeof(void *));
++ inodev_set.i_hash =
++ (struct inodev_entry **) create_table(&inodev_set.i_size, sizeof(void *));
++
++ if (!subj_map_set.s_hash || !acl_role_set.r_hash ||
++ !name_set.n_hash || !inodev_set.i_hash)
++ return 1;
++
++ memset(subj_map_set.s_hash, 0,
++ sizeof(struct subject_map *) * subj_map_set.s_size);
++ memset(acl_role_set.r_hash, 0,
++ sizeof (struct acl_role_label *) * acl_role_set.r_size);
++ memset(name_set.n_hash, 0,
++ sizeof (struct name_entry *) * name_set.n_size);
++ memset(inodev_set.i_hash, 0,
++ sizeof (struct inodev_entry *) * inodev_set.i_size);
++
++ return 0;
++}
++
++/* free information not needed after startup
++ currently contains user->kernel pointer mappings for subjects
++*/
++
++static void
++free_init_variables(void)
++{
++ __u32 i;
++
++ if (subj_map_set.s_hash) {
++ for (i = 0; i < subj_map_set.s_size; i++) {
++ if (subj_map_set.s_hash[i]) {
++ kfree(subj_map_set.s_hash[i]);
++ subj_map_set.s_hash[i] = NULL;
++ }
++ }
++
++ if ((subj_map_set.s_size * sizeof (struct subject_map *)) <=
++ PAGE_SIZE)
++ kfree(subj_map_set.s_hash);
++ else
++ vfree(subj_map_set.s_hash);
++ }
++
++ return;
++}
++
++static void
++free_variables(void)
++{
++ struct acl_subject_label *s;
++ struct acl_role_label *r;
++ struct task_struct *task, *task2;
++ unsigned int i, x;
++
++ gr_clear_learn_entries();
++
++ read_lock(&tasklist_lock);
++ do_each_thread(task2, task) {
++ task->acl_sp_role = 0;
++ task->acl_role_id = 0;
++ task->acl = NULL;
++ task->role = NULL;
++ } while_each_thread(task2, task);
++ read_unlock(&tasklist_lock);
++
++ /* release the reference to the real root dentry and vfsmount */
++ if (real_root)
++ dput(real_root);
++ real_root = NULL;
++ if (real_root_mnt)
++ mntput(real_root_mnt);
++ real_root_mnt = NULL;
++
++ /* free all object hash tables */
++
++ FOR_EACH_ROLE_START(r, i)
++ if (r->subj_hash == NULL)
++ break;
++ FOR_EACH_SUBJECT_START(r, s, x)
++ if (s->obj_hash == NULL)
++ break;
++ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
++ kfree(s->obj_hash);
++ else
++ vfree(s->obj_hash);
++ FOR_EACH_SUBJECT_END(s, x)
++ FOR_EACH_NESTED_SUBJECT_START(r, s)
++ if (s->obj_hash == NULL)
++ break;
++ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
++ kfree(s->obj_hash);
++ else
++ vfree(s->obj_hash);
++ FOR_EACH_NESTED_SUBJECT_END(s)
++ if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
++ kfree(r->subj_hash);
++ else
++ vfree(r->subj_hash);
++ r->subj_hash = NULL;
++ FOR_EACH_ROLE_END(r,i)
++
++ acl_free_all();
++
++ if (acl_role_set.r_hash) {
++ if ((acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
++ PAGE_SIZE)
++ kfree(acl_role_set.r_hash);
++ else
++ vfree(acl_role_set.r_hash);
++ }
++ if (name_set.n_hash) {
++ if ((name_set.n_size * sizeof (struct name_entry *)) <=
++ PAGE_SIZE)
++ kfree(name_set.n_hash);
++ else
++ vfree(name_set.n_hash);
++ }
++
++ if (inodev_set.i_hash) {
++ if ((inodev_set.i_size * sizeof (struct inodev_entry *)) <=
++ PAGE_SIZE)
++ kfree(inodev_set.i_hash);
++ else
++ vfree(inodev_set.i_hash);
++ }
++
++ gr_free_uidset();
++
++ memset(&name_set, 0, sizeof (struct name_db));
++ memset(&inodev_set, 0, sizeof (struct inodev_db));
++ memset(&acl_role_set, 0, sizeof (struct acl_role_db));
++ memset(&subj_map_set, 0, sizeof (struct acl_subj_map_db));
++
++ default_role = NULL;
++
++ return;
++}
++
++static __u32
++count_user_objs(struct acl_object_label *userp)
++{
++ struct acl_object_label o_tmp;
++ __u32 num = 0;
++
++ while (userp) {
++ if (copy_from_user(&o_tmp, userp,
++ sizeof (struct acl_object_label)))
++ break;
++
++ userp = o_tmp.prev;
++ num++;
++ }
++
++ return num;
++}
++
++static struct acl_subject_label *
++do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role);
++
++static int
++copy_user_glob(struct acl_object_label *obj)
++{
++ struct acl_object_label *g_tmp, **guser;
++ unsigned int len;
++ char *tmp;
++
++ if (obj->globbed == NULL)
++ return 0;
++
++ guser = &obj->globbed;
++ while (*guser) {
++ g_tmp = (struct acl_object_label *)
++ acl_alloc(sizeof (struct acl_object_label));
++ if (g_tmp == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(g_tmp, *guser,
++ sizeof (struct acl_object_label)))
++ return -EFAULT;
++
++ len = strnlen_user(g_tmp->filename, PATH_MAX);
++
++ if (!len || len >= PATH_MAX)
++ return -EINVAL;
++
++ if ((tmp = (char *) acl_alloc(len)) == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(tmp, g_tmp->filename, len))
++ return -EFAULT;
++
++ g_tmp->filename = tmp;
++
++ *guser = g_tmp;
++ guser = &(g_tmp->next);
++ }
++
++ return 0;
++}
++
++static int
++copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
++ struct acl_role_label *role)
++{
++ struct acl_object_label *o_tmp;
++ unsigned int len;
++ int ret;
++ char *tmp;
++
++ while (userp) {
++ if ((o_tmp = (struct acl_object_label *)
++ acl_alloc(sizeof (struct acl_object_label))) == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(o_tmp, userp,
++ sizeof (struct acl_object_label)))
++ return -EFAULT;
++
++ userp = o_tmp->prev;
++
++ len = strnlen_user(o_tmp->filename, PATH_MAX);
++
++ if (!len || len >= PATH_MAX)
++ return -EINVAL;
++
++ if ((tmp = (char *) acl_alloc(len)) == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(tmp, o_tmp->filename, len))
++ return -EFAULT;
++
++ o_tmp->filename = tmp;
++
++ insert_acl_obj_label(o_tmp, subj);
++ if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
++ o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
++ return -ENOMEM;
++
++ ret = copy_user_glob(o_tmp);
++ if (ret)
++ return ret;
++
++ if (o_tmp->nested) {
++ o_tmp->nested = do_copy_user_subj(o_tmp->nested, role);
++ if (IS_ERR(o_tmp->nested))
++ return PTR_ERR(o_tmp->nested);
++
++ /* insert into nested subject list */
++ o_tmp->nested->next = role->hash->first;
++ role->hash->first = o_tmp->nested;
++ }
++ }
++
++ return 0;
++}
++
++static __u32
++count_user_subjs(struct acl_subject_label *userp)
++{
++ struct acl_subject_label s_tmp;
++ __u32 num = 0;
++
++ while (userp) {
++ if (copy_from_user(&s_tmp, userp,
++ sizeof (struct acl_subject_label)))
++ break;
++
++ userp = s_tmp.prev;
++ /* do not count nested subjects against this count, since
++ they are not included in the hash table, but are
++ attached to objects. We have already counted
++ the subjects in userspace for the allocation
++ stack
++ */
++ if (!(s_tmp.mode & GR_NESTED))
++ num++;
++ }
++
++ return num;
++}
++
++static int
++copy_user_allowedips(struct acl_role_label *rolep)
++{
++ struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
++
++ ruserip = rolep->allowed_ips;
++
++ while (ruserip) {
++ rlast = rtmp;
++
++ if ((rtmp = (struct role_allowed_ip *)
++ acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(rtmp, ruserip,
++ sizeof (struct role_allowed_ip)))
++ return -EFAULT;
++
++ ruserip = rtmp->prev;
++
++ if (!rlast) {
++ rtmp->prev = NULL;
++ rolep->allowed_ips = rtmp;
++ } else {
++ rlast->next = rtmp;
++ rtmp->prev = rlast;
++ }
++
++ if (!ruserip)
++ rtmp->next = NULL;
++ }
++
++ return 0;
++}
++
++static int
++copy_user_transitions(struct acl_role_label *rolep)
++{
++ struct role_transition *rusertp, *rtmp = NULL, *rlast;
++
++ unsigned int len;
++ char *tmp;
++
++ rusertp = rolep->transitions;
++
++ while (rusertp) {
++ rlast = rtmp;
++
++ if ((rtmp = (struct role_transition *)
++ acl_alloc(sizeof (struct role_transition))) == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(rtmp, rusertp,
++ sizeof (struct role_transition)))
++ return -EFAULT;
++
++ rusertp = rtmp->prev;
++
++ len = strnlen_user(rtmp->rolename, GR_SPROLE_LEN);
++
++ if (!len || len >= GR_SPROLE_LEN)
++ return -EINVAL;
++
++ if ((tmp = (char *) acl_alloc(len)) == NULL)
++ return -ENOMEM;
++
++ if (copy_from_user(tmp, rtmp->rolename, len))
++ return -EFAULT;
++
++ rtmp->rolename = tmp;
++
++ if (!rlast) {
++ rtmp->prev = NULL;
++ rolep->transitions = rtmp;
++ } else {
++ rlast->next = rtmp;
++ rtmp->prev = rlast;
++ }
++
++ if (!rusertp)
++ rtmp->next = NULL;
++ }
++
++ return 0;
++}
++
++static struct acl_subject_label *
++do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role)
++{
++ struct acl_subject_label *s_tmp = NULL, *s_tmp2;
++ unsigned int len;
++ char *tmp;
++ __u32 num_objs;
++ struct acl_ip_label **i_tmp, *i_utmp2;
++ struct gr_hash_struct ghash;
++ struct subject_map *subjmap;
++ unsigned int i_num;
++ int err;
++
++ s_tmp = lookup_subject_map(userp);
++
++ /* we've already copied this subject into the kernel, just return
++ the reference to it, and don't copy it over again
++ */
++ if (s_tmp)
++ return(s_tmp);
++
++ if ((s_tmp = (struct acl_subject_label *)
++ acl_alloc(sizeof (struct acl_subject_label))) == NULL)
++ return ERR_PTR(-ENOMEM);
++
++ subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
++ if (subjmap == NULL)
++ return ERR_PTR(-ENOMEM);
++
++ subjmap->user = userp;
++ subjmap->kernel = s_tmp;
++ insert_subj_map_entry(subjmap);
++
++ if (copy_from_user(s_tmp, userp,
++ sizeof (struct acl_subject_label)))
++ return ERR_PTR(-EFAULT);
++
++ len = strnlen_user(s_tmp->filename, PATH_MAX);
++
++ if (!len || len >= PATH_MAX)
++ return ERR_PTR(-EINVAL);
++
++ if ((tmp = (char *) acl_alloc(len)) == NULL)
++ return ERR_PTR(-ENOMEM);
++
++ if (copy_from_user(tmp, s_tmp->filename, len))
++ return ERR_PTR(-EFAULT);
++
++ s_tmp->filename = tmp;
++
++ if (!strcmp(s_tmp->filename, "/"))
++ role->root_label = s_tmp;
++
++ if (copy_from_user(&ghash, s_tmp->hash, sizeof(struct gr_hash_struct)))
++ return ERR_PTR(-EFAULT);
++
++ /* copy user and group transition tables */
++
++ if (s_tmp->user_trans_num) {
++ uid_t *uidlist;
++
++ uidlist = (uid_t *)acl_alloc(s_tmp->user_trans_num * sizeof(uid_t));
++ if (uidlist == NULL)
++ return ERR_PTR(-ENOMEM);
++ if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
++ return ERR_PTR(-EFAULT);
++
++ s_tmp->user_transitions = uidlist;
++ }
++
++ if (s_tmp->group_trans_num) {
++ gid_t *gidlist;
++
++ gidlist = (gid_t *)acl_alloc(s_tmp->group_trans_num * sizeof(gid_t));
++ if (gidlist == NULL)
++ return ERR_PTR(-ENOMEM);
++ if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
++ return ERR_PTR(-EFAULT);
++
++ s_tmp->group_transitions = gidlist;
++ }
++
++ /* set up object hash table */
++ num_objs = count_user_objs(ghash.first);
++
++ s_tmp->obj_hash_size = num_objs;
++ s_tmp->obj_hash =
++ (struct acl_object_label **)
++ create_table(&(s_tmp->obj_hash_size), sizeof(void *));
++
++ if (!s_tmp->obj_hash)
++ return ERR_PTR(-ENOMEM);
++
++ memset(s_tmp->obj_hash, 0,
++ s_tmp->obj_hash_size *
++ sizeof (struct acl_object_label *));
++
++ /* add in objects */
++ err = copy_user_objs(ghash.first, s_tmp, role);
++
++ if (err)
++ return ERR_PTR(err);
++
++ /* set pointer for parent subject */
++ if (s_tmp->parent_subject) {
++ s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role);
++
++ if (IS_ERR(s_tmp2))
++ return s_tmp2;
++
++ s_tmp->parent_subject = s_tmp2;
++ }
++
++ /* add in ip acls */
++
++ if (!s_tmp->ip_num) {
++ s_tmp->ips = NULL;
++ goto insert;
++ }
++
++ i_tmp =
++ (struct acl_ip_label **) acl_alloc(s_tmp->ip_num *
++ sizeof (struct
++ acl_ip_label *));
++
++ if (!i_tmp)
++ return ERR_PTR(-ENOMEM);
++
++ for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
++ *(i_tmp + i_num) =
++ (struct acl_ip_label *)
++ acl_alloc(sizeof (struct acl_ip_label));
++ if (!*(i_tmp + i_num))
++ return ERR_PTR(-ENOMEM);
++
++ if (copy_from_user
++ (&i_utmp2, s_tmp->ips + i_num,
++ sizeof (struct acl_ip_label *)))
++ return ERR_PTR(-EFAULT);
++
++ if (copy_from_user
++ (*(i_tmp + i_num), i_utmp2,
++ sizeof (struct acl_ip_label)))
++ return ERR_PTR(-EFAULT);
++
++ if ((*(i_tmp + i_num))->iface == NULL)
++ continue;
++
++ len = strnlen_user((*(i_tmp + i_num))->iface, IFNAMSIZ);
++ if (!len || len >= IFNAMSIZ)
++ return ERR_PTR(-EINVAL);
++ tmp = acl_alloc(len);
++ if (tmp == NULL)
++ return ERR_PTR(-ENOMEM);
++ if (copy_from_user(tmp, (*(i_tmp + i_num))->iface, len))
++ return ERR_PTR(-EFAULT);
++ (*(i_tmp + i_num))->iface = tmp;
++ }
++
++ s_tmp->ips = i_tmp;
++
++insert:
++ if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
++ s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
++ return ERR_PTR(-ENOMEM);
++
++ return s_tmp;
++}
++
++static int
++copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
++{
++ struct acl_subject_label s_pre;
++ struct acl_subject_label * ret;
++ int err;
++
++ while (userp) {
++ if (copy_from_user(&s_pre, userp,
++ sizeof (struct acl_subject_label)))
++ return -EFAULT;
++
++ /* do not add nested subjects here, add
++ while parsing objects
++ */
++
++ if (s_pre.mode & GR_NESTED) {
++ userp = s_pre.prev;
++ continue;
++ }
++
++ ret = do_copy_user_subj(userp, role);
++
++ err = PTR_ERR(ret);
++ if (IS_ERR(ret))
++ return err;
++
++ insert_acl_subj_label(ret, role);
++
++ userp = s_pre.prev;
++ }
++
++ return 0;
++}
++
++static int
++copy_user_acl(struct gr_arg *arg)
++{
++ struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
++ struct sprole_pw *sptmp;
++ struct gr_hash_struct *ghash;
++ uid_t *domainlist;
++ unsigned int r_num;
++ unsigned int len;
++ char *tmp;
++ int err = 0;
++ __u16 i;
++ __u32 num_subjs;
++
++ /* we need a default and kernel role */
++ if (arg->role_db.num_roles < 2)
++ return -EINVAL;
++
++ /* copy special role authentication info from userspace */
++
++ num_sprole_pws = arg->num_sprole_pws;
++ acl_special_roles = (struct sprole_pw **) acl_alloc(num_sprole_pws * sizeof(struct sprole_pw *));
++
++ if (!acl_special_roles) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++
++ for (i = 0; i < num_sprole_pws; i++) {
++ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
++ if (!sptmp) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++ if (copy_from_user(sptmp, arg->sprole_pws + i,
++ sizeof (struct sprole_pw))) {
++ err = -EFAULT;
++ goto cleanup;
++ }
++
++ len =
++ strnlen_user(sptmp->rolename, GR_SPROLE_LEN);
++
++ if (!len || len >= GR_SPROLE_LEN) {
++ err = -EINVAL;
++ goto cleanup;
++ }
++
++ if ((tmp = (char *) acl_alloc(len)) == NULL) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++
++ if (copy_from_user(tmp, sptmp->rolename, len)) {
++ err = -EFAULT;
++ goto cleanup;
++ }
++
++#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
++ printk(KERN_ALERT "Copying special role %s\n", tmp);
++#endif
++ sptmp->rolename = tmp;
++ acl_special_roles[i] = sptmp;
++ }
++
++ r_utmp = (struct acl_role_label **) arg->role_db.r_table;
++
++ for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
++ r_tmp = acl_alloc(sizeof (struct acl_role_label));
++
++ if (!r_tmp) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++
++ if (copy_from_user(&r_utmp2, r_utmp + r_num,
++ sizeof (struct acl_role_label *))) {
++ err = -EFAULT;
++ goto cleanup;
++ }
++
++ if (copy_from_user(r_tmp, r_utmp2,
++ sizeof (struct acl_role_label))) {
++ err = -EFAULT;
++ goto cleanup;
++ }
++
++ len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN);
++
++ if (!len || len >= PATH_MAX) {
++ err = -EINVAL;
++ goto cleanup;
++ }
++
++ if ((tmp = (char *) acl_alloc(len)) == NULL) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++ if (copy_from_user(tmp, r_tmp->rolename, len)) {
++ err = -EFAULT;
++ goto cleanup;
++ }
++ r_tmp->rolename = tmp;
++
++ if (!strcmp(r_tmp->rolename, "default")
++ && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
++ default_role = r_tmp;
++ } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
++ kernel_role = r_tmp;
++ }
++
++ if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++ if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct))) {
++ err = -EFAULT;
++ goto cleanup;
++ }
++
++ r_tmp->hash = ghash;
++
++ num_subjs = count_user_subjs(r_tmp->hash->first);
++
++ r_tmp->subj_hash_size = num_subjs;
++ r_tmp->subj_hash =
++ (struct acl_subject_label **)
++ create_table(&(r_tmp->subj_hash_size), sizeof(void *));
++
++ if (!r_tmp->subj_hash) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++
++ err = copy_user_allowedips(r_tmp);
++ if (err)
++ goto cleanup;
++
++ /* copy domain info */
++ if (r_tmp->domain_children != NULL) {
++ domainlist = acl_alloc(r_tmp->domain_child_num * sizeof(uid_t));
++ if (domainlist == NULL) {
++ err = -ENOMEM;
++ goto cleanup;
++ }
++ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t))) {
++ err = -EFAULT;
++ goto cleanup;
++ }
++ r_tmp->domain_children = domainlist;
++ }
++
++ err = copy_user_transitions(r_tmp);
++ if (err)
++ goto cleanup;
++
++ memset(r_tmp->subj_hash, 0,
++ r_tmp->subj_hash_size *
++ sizeof (struct acl_subject_label *));
++
++ err = copy_user_subjs(r_tmp->hash->first, r_tmp);
++
++ if (err)
++ goto cleanup;
++
++ /* set nested subject list to null */
++ r_tmp->hash->first = NULL;
++
++ insert_acl_role_label(r_tmp);
++ }
++
++ goto return_err;
++ cleanup:
++ free_variables();
++ return_err:
++ return err;
++
++}
++
++static int
++gracl_init(struct gr_arg *args)
++{
++ int error = 0;
++
++ memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
++ memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
++
++ if (init_variables(args)) {
++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
++ error = -ENOMEM;
++ free_variables();
++ goto out;
++ }
++
++ error = copy_user_acl(args);
++ free_init_variables();
++ if (error) {
++ free_variables();
++ goto out;
++ }
++
++ if ((error = gr_set_acls(0))) {
++ free_variables();
++ goto out;
++ }
++
++ gr_status |= GR_READY;
++ out:
++ return error;
++}
++
++/* derived from glibc fnmatch() 0: match, 1: no match*/
++
++static int
++glob_match(const char *p, const char *n)
++{
++ char c;
++
++ while ((c = *p++) != '\0') {
++ switch (c) {
++ case '?':
++ if (*n == '\0')
++ return 1;
++ else if (*n == '/')
++ return 1;
++ break;
++ case '\\':
++ if (*n != c)
++ return 1;
++ break;
++ case '*':
++ for (c = *p++; c == '?' || c == '*'; c = *p++) {
++ if (*n == '/')
++ return 1;
++ else if (c == '?') {
++ if (*n == '\0')
++ return 1;
++ else
++ ++n;
++ }
++ }
++ if (c == '\0') {
++ return 0;
++ } else {
++ const char *endp;
++
++ if ((endp = strchr(n, '/')) == NULL)
++ endp = n + strlen(n);
++
++ if (c == '[') {
++ for (--p; n < endp; ++n)
++ if (!glob_match(p, n))
++ return 0;
++ } else if (c == '/') {
++ while (*n != '\0' && *n != '/')
++ ++n;
++ if (*n == '/' && !glob_match(p, n + 1))
++ return 0;
++ } else {
++ for (--p; n < endp; ++n)
++ if (*n == c && !glob_match(p, n))
++ return 0;
++ }
++
++ return 1;
++ }
++ case '[':
++ {
++ int not;
++ char cold;
++
++ if (*n == '\0' || *n == '/')
++ return 1;
++
++ not = (*p == '!' || *p == '^');
++ if (not)
++ ++p;
++
++ c = *p++;
++ for (;;) {
++ unsigned char fn = (unsigned char)*n;
++
++ if (c == '\0')
++ return 1;
++ else {
++ if (c == fn)
++ goto matched;
++ cold = c;
++ c = *p++;
++
++ if (c == '-' && *p != ']') {
++ unsigned char cend = *p++;
++
++ if (cend == '\0')
++ return 1;
++
++ if (cold <= fn && fn <= cend)
++ goto matched;
++
++ c = *p++;
++ }
++ }
++
++ if (c == ']')
++ break;
++ }
++ if (!not)
++ return 1;
++ break;
++ matched:
++ while (c != ']') {
++ if (c == '\0')
++ return 1;
++
++ c = *p++;
++ }
++ if (not)
++ return 1;
++ }
++ break;
++ default:
++ if (c != *n)
++ return 1;
++ }
++
++ ++n;
++ }
++
++ if (*n == '\0')
++ return 0;
++
++ if (*n == '/')
++ return 0;
++
++ return 1;
++}
++
++static struct acl_object_label *
++chk_glob_label(struct acl_object_label *globbed,
++ struct dentry *dentry, struct vfsmount *mnt, char **path)
++{
++ struct acl_object_label *tmp;
++
++ if (*path == NULL)
++ *path = gr_to_filename_nolock(dentry, mnt);
++
++ tmp = globbed;
++
++ while (tmp) {
++ if (!glob_match(tmp->filename, *path))
++ return tmp;
++ tmp = tmp->next;
++ }
++
++ return NULL;
++}
++
++static struct acl_object_label *
++__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
++ const ino_t curr_ino, const dev_t curr_dev,
++ const struct acl_subject_label *subj, char **path)
++{
++ struct acl_subject_label *tmpsubj;
++ struct acl_object_label *retval;
++ struct acl_object_label *retval2;
++
++ tmpsubj = (struct acl_subject_label *) subj;
++ read_lock(&gr_inode_lock);
++ do {
++ retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
++ if (retval) {
++ if (retval->globbed) {
++ retval2 = chk_glob_label(retval->globbed, (struct dentry *)orig_dentry,
++ (struct vfsmount *)orig_mnt, path);
++ if (retval2)
++ retval = retval2;
++ }
++ break;
++ }
++ } while ((tmpsubj = tmpsubj->parent_subject));
++ read_unlock(&gr_inode_lock);
++
++ return retval;
++}
++
++static __inline__ struct acl_object_label *
++full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
++ const struct dentry *curr_dentry,
++ const struct acl_subject_label *subj, char **path)
++{
++ return __full_lookup(orig_dentry, orig_mnt,
++ curr_dentry->d_inode->i_ino,
++ curr_dentry->d_inode->i_sb->s_dev, subj, path);
++}
++
++static struct acl_object_label *
++__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++ const struct acl_subject_label *subj, char *path)
++{
++ struct dentry *dentry = (struct dentry *) l_dentry;
++ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
++ struct acl_object_label *retval;
++
++ spin_lock(&dcache_lock);
++
++ if (unlikely(mnt == shm_mnt || mnt == pipe_mnt || mnt == sock_mnt ||
++ /* ignore Eric Biederman */
++ IS_PRIVATE(l_dentry->d_inode))) {
++ retval = fakefs_obj;
++ goto out;
++ }
++
++ for (;;) {
++ if (dentry == real_root && mnt == real_root_mnt)
++ break;
++
++ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
++ if (mnt->mnt_parent == mnt)
++ break;
++
++ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path);
++ if (retval != NULL)
++ goto out;
++
++ dentry = mnt->mnt_mountpoint;
++ mnt = mnt->mnt_parent;
++ continue;
++ }
++
++ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path);
++ if (retval != NULL)
++ goto out;
++
++ dentry = dentry->d_parent;
++ }
++
++ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path);
++
++ if (retval == NULL)
++ retval = full_lookup(l_dentry, l_mnt, real_root, subj, &path);
++out:
++ spin_unlock(&dcache_lock);
++ return retval;
++}
++
++static __inline__ struct acl_object_label *
++chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++ const struct acl_subject_label *subj)
++{
++ char *path = NULL;
++ return __chk_obj_label(l_dentry, l_mnt, subj, path);
++}
++
++static __inline__ struct acl_object_label *
++chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++ const struct acl_subject_label *subj, char *path)
++{
++ return __chk_obj_label(l_dentry, l_mnt, subj, path);
++}
++
++static struct acl_subject_label *
++chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++ const struct acl_role_label *role)
++{
++ struct dentry *dentry = (struct dentry *) l_dentry;
++ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
++ struct acl_subject_label *retval;
++
++ spin_lock(&dcache_lock);
++
++ for (;;) {
++ if (dentry == real_root && mnt == real_root_mnt)
++ break;
++ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
++ if (mnt->mnt_parent == mnt)
++ break;
++
++ read_lock(&gr_inode_lock);
++ retval =
++ lookup_acl_subj_label(dentry->d_inode->i_ino,
++ dentry->d_inode->i_sb->s_dev, role);
++ read_unlock(&gr_inode_lock);
++ if (retval != NULL)
++ goto out;
++
++ dentry = mnt->mnt_mountpoint;
++ mnt = mnt->mnt_parent;
++ continue;
++ }
++
++ read_lock(&gr_inode_lock);
++ retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
++ dentry->d_inode->i_sb->s_dev, role);
++ read_unlock(&gr_inode_lock);
++ if (retval != NULL)
++ goto out;
++
++ dentry = dentry->d_parent;
++ }
++
++ read_lock(&gr_inode_lock);
++ retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
++ dentry->d_inode->i_sb->s_dev, role);
++ read_unlock(&gr_inode_lock);
++
++ if (unlikely(retval == NULL)) {
++ read_lock(&gr_inode_lock);
++ retval = lookup_acl_subj_label(real_root->d_inode->i_ino,
++ real_root->d_inode->i_sb->s_dev, role);
++ read_unlock(&gr_inode_lock);
++ }
++out:
++ spin_unlock(&dcache_lock);
++
++ return retval;
++}
++
++static void
++gr_log_learn(const struct task_struct *task, const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
++{
++ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
++ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
++ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
++ 1, 1, gr_to_filename(dentry, mnt), (unsigned long) mode, NIPQUAD(task->signal->curr_ip));
++
++ return;
++}
++
++static void
++gr_log_learn_sysctl(const struct task_struct *task, const char *path, const __u32 mode)
++{
++ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
++ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
++ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
++ 1, 1, path, (unsigned long) mode, NIPQUAD(task->signal->curr_ip));
++
++ return;
++}
++
++static void
++gr_log_learn_id_change(const struct task_struct *task, const char type, const unsigned int real,
++ const unsigned int effective, const unsigned int fs)
++{
++ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
++ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
++ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
++ type, real, effective, fs, NIPQUAD(task->signal->curr_ip));
++
++ return;
++}
++
++__u32
++gr_check_link(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt,
++ const struct dentry * old_dentry, const struct vfsmount * old_mnt)
++{
++ struct acl_object_label *obj;
++ __u32 oldmode, newmode;
++ __u32 needmode;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return (GR_CREATE | GR_LINK);
++
++ obj = chk_obj_label(old_dentry, old_mnt, current->acl);
++ oldmode = obj->mode;
++
++ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
++ oldmode |= (GR_CREATE | GR_LINK);
++
++ needmode = GR_CREATE | GR_AUDIT_CREATE | GR_SUPPRESS;
++ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID))
++ needmode |= GR_SETID | GR_AUDIT_SETID;
++
++ newmode =
++ gr_check_create(new_dentry, parent_dentry, parent_mnt,
++ oldmode | needmode);
++
++ needmode = newmode & (GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC |
++ GR_SETID | GR_READ | GR_FIND | GR_DELETE |
++ GR_INHERIT | GR_AUDIT_INHERIT);
++
++ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID) && !(newmode & GR_SETID))
++ goto bad;
++
++ if ((oldmode & needmode) != needmode)
++ goto bad;
++
++ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
++ if ((newmode & needmode) != needmode)
++ goto bad;
++
++ if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
++ return newmode;
++bad:
++ needmode = oldmode;
++ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID))
++ needmode |= GR_SETID;
++
++ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
++ gr_log_learn(current, old_dentry, old_mnt, needmode);
++ return (GR_CREATE | GR_LINK);
++ } else if (newmode & GR_SUPPRESS)
++ return GR_SUPPRESS;
++ else
++ return 0;
++}
++
++__u32
++gr_search_file(const struct dentry * dentry, const __u32 mode,
++ const struct vfsmount * mnt)
++{
++ __u32 retval = mode;
++ struct acl_subject_label *curracl;
++ struct acl_object_label *currobj;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return (mode & ~GR_AUDITS);
++
++ curracl = current->acl;
++
++ currobj = chk_obj_label(dentry, mnt, curracl);
++ retval = currobj->mode & mode;
++
++ if (unlikely
++ ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
++ && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
++ __u32 new_mode = mode;
++
++ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
++
++ retval = new_mode;
++
++ if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
++ new_mode |= GR_INHERIT;
++
++ if (!(mode & GR_NOLEARN))
++ gr_log_learn(current, dentry, mnt, new_mode);
++ }
++
++ return retval;
++}
++
++__u32
++gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
++ const struct vfsmount * mnt, const __u32 mode)
++{
++ struct name_entry *match;
++ struct acl_object_label *matchpo;
++ struct acl_subject_label *curracl;
++ char *path;
++ __u32 retval;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return (mode & ~GR_AUDITS);
++
++ preempt_disable();
++ path = gr_to_filename_rbac(new_dentry, mnt);
++ match = lookup_name_entry_create(path);
++
++ if (!match)
++ goto check_parent;
++
++ curracl = current->acl;
++
++ read_lock(&gr_inode_lock);
++ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
++ read_unlock(&gr_inode_lock);
++
++ if (matchpo) {
++ if ((matchpo->mode & mode) !=
++ (mode & ~(GR_AUDITS | GR_SUPPRESS))
++ && curracl->mode & (GR_LEARN | GR_INHERITLEARN)) {
++ __u32 new_mode = mode;
++
++ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
++
++ gr_log_learn(current, new_dentry, mnt, new_mode);
++
++ preempt_enable();
++ return new_mode;
++ }
++ preempt_enable();
++ return (matchpo->mode & mode);
++ }
++
++ check_parent:
++ curracl = current->acl;
++
++ matchpo = chk_obj_create_label(parent, mnt, curracl, path);
++ retval = matchpo->mode & mode;
++
++ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
++ && (curracl->mode & (GR_LEARN | GR_INHERITLEARN))) {
++ __u32 new_mode = mode;
++
++ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
++
++ gr_log_learn(current, new_dentry, mnt, new_mode);
++ preempt_enable();
++ return new_mode;
++ }
++
++ preempt_enable();
++ return retval;
++}
++
++int
++gr_check_hidden_task(const struct task_struct *task)
++{
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++
++ if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
++ return 1;
++
++ return 0;
++}
++
++int
++gr_check_protected_task(const struct task_struct *task)
++{
++ if (unlikely(!(gr_status & GR_READY) || !task))
++ return 0;
++
++ if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
++ task->acl != current->acl)
++ return 1;
++
++ return 0;
++}
++
++void
++gr_copy_label(struct task_struct *tsk)
++{
++ tsk->signal->used_accept = 0;
++ tsk->acl_sp_role = 0;
++ tsk->acl_role_id = current->acl_role_id;
++ tsk->acl = current->acl;
++ tsk->role = current->role;
++ tsk->signal->curr_ip = current->signal->curr_ip;
++ if (current->exec_file)
++ get_file(current->exec_file);
++ tsk->exec_file = current->exec_file;
++ tsk->is_writable = current->is_writable;
++ if (unlikely(current->signal->used_accept))
++ current->signal->curr_ip = 0;
++
++ return;
++}
++
++static void
++gr_set_proc_res(struct task_struct *task)
++{
++ struct acl_subject_label *proc;
++ unsigned short i;
++
++ proc = task->acl;
++
++ if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
++ return;
++
++ for (i = 0; i < (GR_NLIMITS - 1); i++) {
++ if (!(proc->resmask & (1 << i)))
++ continue;
++
++ task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur;
++ task->signal->rlim[i].rlim_max = proc->res[i].rlim_max;
++ }
++
++ return;
++}
++
++int
++gr_check_user_change(int real, int effective, int fs)
++{
++ unsigned int i;
++ __u16 num;
++ uid_t *uidlist;
++ int curuid;
++ int realok = 0;
++ int effectiveok = 0;
++ int fsok = 0;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++
++ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
++ gr_log_learn_id_change(current, 'u', real, effective, fs);
++
++ num = current->acl->user_trans_num;
++ uidlist = current->acl->user_transitions;
++
++ if (uidlist == NULL)
++ return 0;
++
++ if (real == -1)
++ realok = 1;
++ if (effective == -1)
++ effectiveok = 1;
++ if (fs == -1)
++ fsok = 1;
++
++ if (current->acl->user_trans_type & GR_ID_ALLOW) {
++ for (i = 0; i < num; i++) {
++ curuid = (int)uidlist[i];
++ if (real == curuid)
++ realok = 1;
++ if (effective == curuid)
++ effectiveok = 1;
++ if (fs == curuid)
++ fsok = 1;
++ }
++ } else if (current->acl->user_trans_type & GR_ID_DENY) {
++ for (i = 0; i < num; i++) {
++ curuid = (int)uidlist[i];
++ if (real == curuid)
++ break;
++ if (effective == curuid)
++ break;
++ if (fs == curuid)
++ break;
++ }
++ /* not in deny list */
++ if (i == num) {
++ realok = 1;
++ effectiveok = 1;
++ fsok = 1;
++ }
++ }
++
++ if (realok && effectiveok && fsok)
++ return 0;
++ else {
++ gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real);
++ return 1;
++ }
++}
++
++int
++gr_check_group_change(int real, int effective, int fs)
++{
++ unsigned int i;
++ __u16 num;
++ gid_t *gidlist;
++ int curgid;
++ int realok = 0;
++ int effectiveok = 0;
++ int fsok = 0;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++
++ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
++ gr_log_learn_id_change(current, 'g', real, effective, fs);
++
++ num = current->acl->group_trans_num;
++ gidlist = current->acl->group_transitions;
++
++ if (gidlist == NULL)
++ return 0;
++
++ if (real == -1)
++ realok = 1;
++ if (effective == -1)
++ effectiveok = 1;
++ if (fs == -1)
++ fsok = 1;
++
++ if (current->acl->group_trans_type & GR_ID_ALLOW) {
++ for (i = 0; i < num; i++) {
++ curgid = (int)gidlist[i];
++ if (real == curgid)
++ realok = 1;
++ if (effective == curgid)
++ effectiveok = 1;
++ if (fs == curgid)
++ fsok = 1;
++ }
++ } else if (current->acl->group_trans_type & GR_ID_DENY) {
++ for (i = 0; i < num; i++) {
++ curgid = (int)gidlist[i];
++ if (real == curgid)
++ break;
++ if (effective == curgid)
++ break;
++ if (fs == curgid)
++ break;
++ }
++ /* not in deny list */
++ if (i == num) {
++ realok = 1;
++ effectiveok = 1;
++ fsok = 1;
++ }
++ }
++
++ if (realok && effectiveok && fsok)
++ return 0;
++ else {
++ gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real);
++ return 1;
++ }
++}
++
++void
++gr_set_role_label(struct task_struct *task, const uid_t uid, const uid_t gid)
++{
++ struct acl_role_label *role = task->role;
++ struct acl_subject_label *subj = NULL;
++ struct acl_object_label *obj;
++ struct file *filp;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return;
++
++ filp = task->exec_file;
++
++ /* kernel process, we'll give them the kernel role */
++ if (unlikely(!filp)) {
++ task->role = kernel_role;
++ task->acl = kernel_role->root_label;
++ return;
++ } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL))
++ role = lookup_acl_role_label(task, uid, gid);
++
++ /* perform subject lookup in possibly new role
++ we can use this result below in the case where role == task->role
++ */
++ subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
++
++ /* if we changed uid/gid, but result in the same role
++ and are using inheritance, don't lose the inherited subject
++ if current subject is other than what normal lookup
++ would result in, we arrived via inheritance, don't
++ lose subject
++ */
++ if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) &&
++ (subj == task->acl)))
++ task->acl = subj;
++
++ task->role = role;
++
++ task->is_writable = 0;
++
++ /* ignore additional mmap checks for processes that are writable
++ by the default ACL */
++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ task->is_writable = 1;
++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ task->is_writable = 1;
++
++#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
++ printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
++#endif
++
++ gr_set_proc_res(task);
++
++ return;
++}
++
++int
++gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ struct task_struct *task = current;
++ struct acl_subject_label *newacl;
++ struct acl_object_label *obj;
++ __u32 retmode;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++
++ newacl = chk_subj_label(dentry, mnt, task->role);
++
++ task_lock(task);
++ if (((task->ptrace & PT_PTRACED) && !(task->acl->mode &
++ GR_POVERRIDE) && (task->acl != newacl) &&
++ !(task->role->roletype & GR_ROLE_GOD) &&
++ !gr_search_file(dentry, GR_PTRACERD, mnt) &&
++ !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) ||
++ (atomic_read(&task->fs->count) > 1 ||
++ atomic_read(&task->files->count) > 1 ||
++ atomic_read(&task->sighand->count) > 1)) {
++ task_unlock(task);
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
++ return -EACCES;
++ }
++ task_unlock(task);
++
++ obj = chk_obj_label(dentry, mnt, task->acl);
++ retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
++
++ if (!(task->acl->mode & GR_INHERITLEARN) &&
++ ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
++ if (obj->nested)
++ task->acl = obj->nested;
++ else
++ task->acl = newacl;
++ } else if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
++ gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
++
++ task->is_writable = 0;
++
++ /* ignore additional mmap checks for processes that are writable
++ by the default ACL */
++ obj = chk_obj_label(dentry, mnt, default_role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ task->is_writable = 1;
++ obj = chk_obj_label(dentry, mnt, task->role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ task->is_writable = 1;
++
++ gr_set_proc_res(task);
++
++#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
++ printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
++#endif
++ return 0;
++}
++
++/* always called with valid inodev ptr */
++static void
++do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev)
++{
++ struct acl_object_label *matchpo;
++ struct acl_subject_label *matchps;
++ struct acl_subject_label *subj;
++ struct acl_role_label *role;
++ unsigned int i, x;
++
++ FOR_EACH_ROLE_START(role, i)
++ FOR_EACH_SUBJECT_START(role, subj, x)
++ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
++ matchpo->mode |= GR_DELETED;
++ FOR_EACH_SUBJECT_END(subj,x)
++ FOR_EACH_NESTED_SUBJECT_START(role, subj)
++ if (subj->inode == ino && subj->device == dev)
++ subj->mode |= GR_DELETED;
++ FOR_EACH_NESTED_SUBJECT_END(subj)
++ if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
++ matchps->mode |= GR_DELETED;
++ FOR_EACH_ROLE_END(role,i)
++
++ inodev->nentry->deleted = 1;
++
++ return;
++}
++
++void
++gr_handle_delete(const ino_t ino, const dev_t dev)
++{
++ struct inodev_entry *inodev;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return;
++
++ write_lock(&gr_inode_lock);
++ inodev = lookup_inodev_entry(ino, dev);
++ if (inodev != NULL)
++ do_handle_delete(inodev, ino, dev);
++ write_unlock(&gr_inode_lock);
++
++ return;
++}
++
++static void
++update_acl_obj_label(const ino_t oldinode, const dev_t olddevice,
++ const ino_t newinode, const dev_t newdevice,
++ struct acl_subject_label *subj)
++{
++ unsigned int index = fhash(oldinode, olddevice, subj->obj_hash_size);
++ struct acl_object_label *match;
++
++ match = subj->obj_hash[index];
++
++ while (match && (match->inode != oldinode ||
++ match->device != olddevice ||
++ !(match->mode & GR_DELETED)))
++ match = match->next;
++
++ if (match && (match->inode == oldinode)
++ && (match->device == olddevice)
++ && (match->mode & GR_DELETED)) {
++ if (match->prev == NULL) {
++ subj->obj_hash[index] = match->next;
++ if (match->next != NULL)
++ match->next->prev = NULL;
++ } else {
++ match->prev->next = match->next;
++ if (match->next != NULL)
++ match->next->prev = match->prev;
++ }
++ match->prev = NULL;
++ match->next = NULL;
++ match->inode = newinode;
++ match->device = newdevice;
++ match->mode &= ~GR_DELETED;
++
++ insert_acl_obj_label(match, subj);
++ }
++
++ return;
++}
++
++static void
++update_acl_subj_label(const ino_t oldinode, const dev_t olddevice,
++ const ino_t newinode, const dev_t newdevice,
++ struct acl_role_label *role)
++{
++ unsigned int index = fhash(oldinode, olddevice, role->subj_hash_size);
++ struct acl_subject_label *match;
++
++ match = role->subj_hash[index];
++
++ while (match && (match->inode != oldinode ||
++ match->device != olddevice ||
++ !(match->mode & GR_DELETED)))
++ match = match->next;
++
++ if (match && (match->inode == oldinode)
++ && (match->device == olddevice)
++ && (match->mode & GR_DELETED)) {
++ if (match->prev == NULL) {
++ role->subj_hash[index] = match->next;
++ if (match->next != NULL)
++ match->next->prev = NULL;
++ } else {
++ match->prev->next = match->next;
++ if (match->next != NULL)
++ match->next->prev = match->prev;
++ }
++ match->prev = NULL;
++ match->next = NULL;
++ match->inode = newinode;
++ match->device = newdevice;
++ match->mode &= ~GR_DELETED;
++
++ insert_acl_subj_label(match, role);
++ }
++
++ return;
++}
++
++static void
++update_inodev_entry(const ino_t oldinode, const dev_t olddevice,
++ const ino_t newinode, const dev_t newdevice)
++{
++ unsigned int index = fhash(oldinode, olddevice, inodev_set.i_size);
++ struct inodev_entry *match;
++
++ match = inodev_set.i_hash[index];
++
++ while (match && (match->nentry->inode != oldinode ||
++ match->nentry->device != olddevice || !match->nentry->deleted))
++ match = match->next;
++
++ if (match && (match->nentry->inode == oldinode)
++ && (match->nentry->device == olddevice) &&
++ match->nentry->deleted) {
++ if (match->prev == NULL) {
++ inodev_set.i_hash[index] = match->next;
++ if (match->next != NULL)
++ match->next->prev = NULL;
++ } else {
++ match->prev->next = match->next;
++ if (match->next != NULL)
++ match->next->prev = match->prev;
++ }
++ match->prev = NULL;
++ match->next = NULL;
++ match->nentry->inode = newinode;
++ match->nentry->device = newdevice;
++ match->nentry->deleted = 0;
++
++ insert_inodev_entry(match);
++ }
++
++ return;
++}
++
++static void
++do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
++ const struct vfsmount *mnt)
++{
++ struct acl_subject_label *subj;
++ struct acl_role_label *role;
++ unsigned int i, x;
++
++ FOR_EACH_ROLE_START(role, i)
++ update_acl_subj_label(matchn->inode, matchn->device,
++ dentry->d_inode->i_ino,
++ dentry->d_inode->i_sb->s_dev, role);
++
++ FOR_EACH_NESTED_SUBJECT_START(role, subj)
++ if ((subj->inode == dentry->d_inode->i_ino) &&
++ (subj->device == dentry->d_inode->i_sb->s_dev)) {
++ subj->inode = dentry->d_inode->i_ino;
++ subj->device = dentry->d_inode->i_sb->s_dev;
++ }
++ FOR_EACH_NESTED_SUBJECT_END(subj)
++ FOR_EACH_SUBJECT_START(role, subj, x)
++ update_acl_obj_label(matchn->inode, matchn->device,
++ dentry->d_inode->i_ino,
++ dentry->d_inode->i_sb->s_dev, subj);
++ FOR_EACH_SUBJECT_END(subj,x)
++ FOR_EACH_ROLE_END(role,i)
++
++ update_inodev_entry(matchn->inode, matchn->device,
++ dentry->d_inode->i_ino, dentry->d_inode->i_sb->s_dev);
++
++ return;
++}
++
++void
++gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ struct name_entry *matchn;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return;
++
++ preempt_disable();
++ matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
++
++ if (unlikely((unsigned long)matchn)) {
++ write_lock(&gr_inode_lock);
++ do_handle_create(matchn, dentry, mnt);
++ write_unlock(&gr_inode_lock);
++ }
++ preempt_enable();
++
++ return;
++}
++
++void
++gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
++ struct dentry *old_dentry,
++ struct dentry *new_dentry,
++ struct vfsmount *mnt, const __u8 replace)
++{
++ struct name_entry *matchn;
++ struct inodev_entry *inodev;
++
++ /* vfs_rename swaps the name and parent link for old_dentry and
++ new_dentry
++ at this point, old_dentry has the new name, parent link, and inode
++ for the renamed file
++ if a file is being replaced by a rename, new_dentry has the inode
++ and name for the replaced file
++ */
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return;
++
++ preempt_disable();
++ matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
++
++ /* we wouldn't have to check d_inode if it weren't for
++ NFS silly-renaming
++ */
++
++ write_lock(&gr_inode_lock);
++ if (unlikely(replace && new_dentry->d_inode)) {
++ inodev = lookup_inodev_entry(new_dentry->d_inode->i_ino,
++ new_dentry->d_inode->i_sb->s_dev);
++ if (inodev != NULL && (new_dentry->d_inode->i_nlink <= 1))
++ do_handle_delete(inodev, new_dentry->d_inode->i_ino,
++ new_dentry->d_inode->i_sb->s_dev);
++ }
++
++ inodev = lookup_inodev_entry(old_dentry->d_inode->i_ino,
++ old_dentry->d_inode->i_sb->s_dev);
++ if (inodev != NULL && (old_dentry->d_inode->i_nlink <= 1))
++ do_handle_delete(inodev, old_dentry->d_inode->i_ino,
++ old_dentry->d_inode->i_sb->s_dev);
++
++ if (unlikely((unsigned long)matchn))
++ do_handle_create(matchn, old_dentry, mnt);
++
++ write_unlock(&gr_inode_lock);
++ preempt_enable();
++
++ return;
++}
++
++static int
++lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
++ unsigned char **sum)
++{
++ struct acl_role_label *r;
++ struct role_allowed_ip *ipp;
++ struct role_transition *trans;
++ unsigned int i;
++ int found = 0;
++
++ /* check transition table */
++
++ for (trans = current->role->transitions; trans; trans = trans->next) {
++ if (!strcmp(rolename, trans->rolename)) {
++ found = 1;
++ break;
++ }
++ }
++
++ if (!found)
++ return 0;
++
++ /* handle special roles that do not require authentication
++ and check ip */
++
++ FOR_EACH_ROLE_START(r, i)
++ if (!strcmp(rolename, r->rolename) &&
++ (r->roletype & GR_ROLE_SPECIAL)) {
++ found = 0;
++ if (r->allowed_ips != NULL) {
++ for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
++ if ((ntohl(current->signal->curr_ip) & ipp->netmask) ==
++ (ntohl(ipp->addr) & ipp->netmask))
++ found = 1;
++ }
++ } else
++ found = 2;
++ if (!found)
++ return 0;
++
++ if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
++ ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
++ *salt = NULL;
++ *sum = NULL;
++ return 1;
++ }
++ }
++ FOR_EACH_ROLE_END(r,i)
++
++ for (i = 0; i < num_sprole_pws; i++) {
++ if (!strcmp(rolename, acl_special_roles[i]->rolename)) {
++ *salt = acl_special_roles[i]->salt;
++ *sum = acl_special_roles[i]->sum;
++ return 1;
++ }
++ }
++
++ return 0;
++}
++
++static void
++assign_special_role(char *rolename)
++{
++ struct acl_object_label *obj;
++ struct acl_role_label *r;
++ struct acl_role_label *assigned = NULL;
++ struct task_struct *tsk;
++ struct file *filp;
++ unsigned int i;
++
++ FOR_EACH_ROLE_START(r, i)
++ if (!strcmp(rolename, r->rolename) &&
++ (r->roletype & GR_ROLE_SPECIAL))
++ assigned = r;
++ FOR_EACH_ROLE_END(r,i)
++
++ if (!assigned)
++ return;
++
++ read_lock(&tasklist_lock);
++ read_lock(&grsec_exec_file_lock);
++
++ tsk = current->parent;
++ if (tsk == NULL)
++ goto out_unlock;
++
++ filp = tsk->exec_file;
++ if (filp == NULL)
++ goto out_unlock;
++
++ tsk->is_writable = 0;
++
++ tsk->acl_sp_role = 1;
++ tsk->acl_role_id = ++acl_sp_role_value;
++ tsk->role = assigned;
++ tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
++
++ /* ignore additional mmap checks for processes that are writable
++ by the default ACL */
++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ tsk->is_writable = 1;
++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ tsk->is_writable = 1;
++
++#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
++ printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename, tsk->acl->filename, tsk->comm, tsk->pid);
++#endif
++
++out_unlock:
++ read_unlock(&grsec_exec_file_lock);
++ read_unlock(&tasklist_lock);
++ return;
++}
++
++int gr_check_secure_terminal(struct task_struct *task)
++{
++ struct task_struct *p, *p2, *p3;
++ struct files_struct *files;
++ struct fdtable *fdt;
++ struct file *our_file = NULL, *file;
++ int i;
++
++ if (task->signal->tty == NULL)
++ return 1;
++
++ files = get_files_struct(task);
++ if (files != NULL) {
++ rcu_read_lock();
++ fdt = files_fdtable(files);
++ for (i=0; i < fdt->max_fds; i++) {
++ file = fcheck_files(files, i);
++ if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
++ get_file(file);
++ our_file = file;
++ }
++ }
++ rcu_read_unlock();
++ put_files_struct(files);
++ }
++
++ if (our_file == NULL)
++ return 1;
++
++ read_lock(&tasklist_lock);
++ do_each_thread(p2, p) {
++ files = get_files_struct(p);
++ if (files == NULL ||
++ (p->signal && p->signal->tty == task->signal->tty)) {
++ if (files != NULL)
++ put_files_struct(files);
++ continue;
++ }
++ rcu_read_lock();
++ fdt = files_fdtable(files);
++ for (i=0; i < fdt->max_fds; i++) {
++ file = fcheck_files(files, i);
++ if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
++ file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
++ p3 = task;
++ while (p3->pid > 0) {
++ if (p3 == p)
++ break;
++ p3 = p3->parent;
++ }
++ if (p3 == p)
++ break;
++ gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
++ gr_handle_alertkill(p);
++ rcu_read_unlock();
++ put_files_struct(files);
++ read_unlock(&tasklist_lock);
++ fput(our_file);
++ return 0;
++ }
++ }
++ rcu_read_unlock();
++ put_files_struct(files);
++ } while_each_thread(p2, p);
++ read_unlock(&tasklist_lock);
++
++ fput(our_file);
++ return 1;
++}
++
++ssize_t
++write_grsec_handler(struct file *file, const char * buf, size_t count, loff_t *ppos)
++{
++ struct gr_arg_wrapper uwrap;
++ unsigned char *sprole_salt;
++ unsigned char *sprole_sum;
++ int error = sizeof (struct gr_arg_wrapper);
++ int error2 = 0;
++
++ down(&gr_dev_sem);
++
++ if ((gr_status & GR_READY) && !(current->acl->mode & GR_KERNELAUTH)) {
++ error = -EPERM;
++ goto out;
++ }
++
++ if (count != sizeof (struct gr_arg_wrapper)) {
++ gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)sizeof(struct gr_arg_wrapper));
++ error = -EINVAL;
++ goto out;
++ }
++
++
++ if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
++ gr_auth_expires = 0;
++ gr_auth_attempts = 0;
++ }
++
++ if (copy_from_user(&uwrap, buf, sizeof (struct gr_arg_wrapper))) {
++ error = -EFAULT;
++ goto out;
++ }
++
++ if ((uwrap.version != GRSECURITY_VERSION) || (uwrap.size != sizeof(struct gr_arg))) {
++ error = -EINVAL;
++ goto out;
++ }
++
++ if (copy_from_user(gr_usermode, uwrap.arg, sizeof (struct gr_arg))) {
++ error = -EFAULT;
++ goto out;
++ }
++
++ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
++ gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
++ time_after(gr_auth_expires, get_seconds())) {
++ error = -EBUSY;
++ goto out;
++ }
++
++ /* if non-root trying to do anything other than use a special role,
++ do not attempt authentication, do not count towards authentication
++ locking
++ */
++
++ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
++ gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
++ current->uid) {
++ error = -EPERM;
++ goto out;
++ }
++
++ /* ensure pw and special role name are null terminated */
++
++ gr_usermode->pw[GR_PW_LEN - 1] = '\0';
++ gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
++
++ /* Okay.
++ * We have our enough of the argument structure..(we have yet
++ * to copy_from_user the tables themselves) . Copy the tables
++ * only if we need them, i.e. for loading operations. */
++
++ switch (gr_usermode->mode) {
++ case GR_STATUS:
++ if (gr_status & GR_READY) {
++ error = 1;
++ if (!gr_check_secure_terminal(current))
++ error = 3;
++ } else
++ error = 2;
++ goto out;
++ case GR_SHUTDOWN:
++ if ((gr_status & GR_READY)
++ && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
++ gr_status &= ~GR_READY;
++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
++ free_variables();
++ memset(gr_usermode, 0, sizeof (struct gr_arg));
++ memset(gr_system_salt, 0, GR_SALT_LEN);
++ memset(gr_system_sum, 0, GR_SHA_LEN);
++ } else if (gr_status & GR_READY) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
++ error = -EPERM;
++ } else {
++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
++ error = -EAGAIN;
++ }
++ break;
++ case GR_ENABLE:
++ if (!(gr_status & GR_READY) && !(error2 = gracl_init(gr_usermode)))
++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
++ else {
++ if (gr_status & GR_READY)
++ error = -EAGAIN;
++ else
++ error = error2;
++ gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
++ }
++ break;
++ case GR_RELOAD:
++ if (!(gr_status & GR_READY)) {
++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
++ error = -EAGAIN;
++ } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
++ lock_kernel();
++ gr_status &= ~GR_READY;
++ free_variables();
++ if (!(error2 = gracl_init(gr_usermode))) {
++ unlock_kernel();
++ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
++ } else {
++ unlock_kernel();
++ error = error2;
++ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
++ }
++ } else {
++ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
++ error = -EPERM;
++ }
++ break;
++ case GR_SEGVMOD:
++ if (unlikely(!(gr_status & GR_READY))) {
++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
++ error = -EAGAIN;
++ break;
++ }
++
++ if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
++ if (gr_usermode->segv_device && gr_usermode->segv_inode) {
++ struct acl_subject_label *segvacl;
++ segvacl =
++ lookup_acl_subj_label(gr_usermode->segv_inode,
++ gr_usermode->segv_device,
++ current->role);
++ if (segvacl) {
++ segvacl->crashes = 0;
++ segvacl->expires = 0;
++ }
++ } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) {
++ gr_remove_uid(gr_usermode->segv_uid);
++ }
++ } else {
++ gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
++ error = -EPERM;
++ }
++ break;
++ case GR_SPROLE:
++ case GR_SPROLEPAM:
++ if (unlikely(!(gr_status & GR_READY))) {
++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
++ error = -EAGAIN;
++ break;
++ }
++
++ if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
++ current->role->expires = 0;
++ current->role->auth_attempts = 0;
++ }
++
++ if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
++ time_after(current->role->expires, get_seconds())) {
++ error = -EBUSY;
++ goto out;
++ }
++
++ if (lookup_special_role_auth
++ (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum)
++ && ((!sprole_salt && !sprole_sum)
++ || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
++ char *p = "";
++ assign_special_role(gr_usermode->sp_role);
++ read_lock(&tasklist_lock);
++ if (current->parent)
++ p = current->parent->role->rolename;
++ read_unlock(&tasklist_lock);
++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
++ p, acl_sp_role_value);
++ } else {
++ gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
++ error = -EPERM;
++ if(!(current->role->auth_attempts++))
++ current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
++
++ goto out;
++ }
++ break;
++ case GR_UNSPROLE:
++ if (unlikely(!(gr_status & GR_READY))) {
++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
++ error = -EAGAIN;
++ break;
++ }
++
++ if (current->role->roletype & GR_ROLE_SPECIAL) {
++ char *p = "";
++ int i = 0;
++
++ read_lock(&tasklist_lock);
++ if (current->parent) {
++ p = current->parent->role->rolename;
++ i = current->parent->acl_role_id;
++ }
++ read_unlock(&tasklist_lock);
++
++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
++ gr_set_acls(1);
++ } else {
++ gr_log_str(GR_DONT_AUDIT, GR_UNSPROLEF_ACL_MSG, current->role->rolename);
++ error = -EPERM;
++ goto out;
++ }
++ break;
++ default:
++ gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
++ error = -EINVAL;
++ break;
++ }
++
++ if (error != -EPERM)
++ goto out;
++
++ if(!(gr_auth_attempts++))
++ gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
++
++ out:
++ up(&gr_dev_sem);
++ return error;
++}
++
++int
++gr_set_acls(const int type)
++{
++ struct acl_object_label *obj;
++ struct task_struct *task, *task2;
++ struct file *filp;
++ struct acl_role_label *role = current->role;
++ __u16 acl_role_id = current->acl_role_id;
++
++ read_lock(&tasklist_lock);
++ read_lock(&grsec_exec_file_lock);
++ do_each_thread(task2, task) {
++ /* check to see if we're called from the exit handler,
++ if so, only replace ACLs that have inherited the admin
++ ACL */
++
++ if (type && (task->role != role ||
++ task->acl_role_id != acl_role_id))
++ continue;
++
++ task->acl_role_id = 0;
++ task->acl_sp_role = 0;
++
++ if ((filp = task->exec_file)) {
++ task->role = lookup_acl_role_label(task, task->uid, task->gid);
++
++ task->acl =
++ chk_subj_label(filp->f_path.dentry, filp->f_path.mnt,
++ task->role);
++ if (task->acl) {
++ struct acl_subject_label *curr;
++ curr = task->acl;
++
++ task->is_writable = 0;
++ /* ignore additional mmap checks for processes that are writable
++ by the default ACL */
++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ task->is_writable = 1;
++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
++ if (unlikely(obj->mode & GR_WRITE))
++ task->is_writable = 1;
++
++ gr_set_proc_res(task);
++
++#ifdef CONFIG_GRKERNSEC_ACL_DEBUG
++ printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
++#endif
++ } else {
++ read_unlock(&grsec_exec_file_lock);
++ read_unlock(&tasklist_lock);
++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task->pid);
++ return 1;
++ }
++ } else {
++ // it's a kernel process
++ task->role = kernel_role;
++ task->acl = kernel_role->root_label;
++#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
++ task->acl->mode &= ~GR_PROCFIND;
++#endif
++ }
++ } while_each_thread(task2, task);
++ read_unlock(&grsec_exec_file_lock);
++ read_unlock(&tasklist_lock);
++ return 0;
++}
++
++void
++gr_learn_resource(const struct task_struct *task,
++ const int res, const unsigned long wanted, const int gt)
++{
++ struct acl_subject_label *acl;
++
++ if (unlikely((gr_status & GR_READY) &&
++ task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
++ goto skip_reslog;
++
++#ifdef CONFIG_GRKERNSEC_RESLOG
++ gr_log_resource(task, res, wanted, gt);
++#endif
++ skip_reslog:
++
++ if (unlikely(!(gr_status & GR_READY) || !wanted))
++ return;
++
++ acl = task->acl;
++
++ if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
++ !(acl->resmask & (1 << (unsigned short) res))))
++ return;
++
++ if (wanted >= acl->res[res].rlim_cur) {
++ unsigned long res_add;
++
++ res_add = wanted;
++ switch (res) {
++ case RLIMIT_CPU:
++ res_add += GR_RLIM_CPU_BUMP;
++ break;
++ case RLIMIT_FSIZE:
++ res_add += GR_RLIM_FSIZE_BUMP;
++ break;
++ case RLIMIT_DATA:
++ res_add += GR_RLIM_DATA_BUMP;
++ break;
++ case RLIMIT_STACK:
++ res_add += GR_RLIM_STACK_BUMP;
++ break;
++ case RLIMIT_CORE:
++ res_add += GR_RLIM_CORE_BUMP;
++ break;
++ case RLIMIT_RSS:
++ res_add += GR_RLIM_RSS_BUMP;
++ break;
++ case RLIMIT_NPROC:
++ res_add += GR_RLIM_NPROC_BUMP;
++ break;
++ case RLIMIT_NOFILE:
++ res_add += GR_RLIM_NOFILE_BUMP;
++ break;
++ case RLIMIT_MEMLOCK:
++ res_add += GR_RLIM_MEMLOCK_BUMP;
++ break;
++ case RLIMIT_AS:
++ res_add += GR_RLIM_AS_BUMP;
++ break;
++ case RLIMIT_LOCKS:
++ res_add += GR_RLIM_LOCKS_BUMP;
++ break;
++ }
++
++ acl->res[res].rlim_cur = res_add;
++
++ if (wanted > acl->res[res].rlim_max)
++ acl->res[res].rlim_max = res_add;
++
++ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
++ task->role->roletype, acl->filename,
++ acl->res[res].rlim_cur, acl->res[res].rlim_max,
++ "", (unsigned long) res);
++ }
++
++ return;
++}
++
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++void
++pax_set_initial_flags(struct linux_binprm *bprm)
++{
++ struct task_struct *task = current;
++ struct acl_subject_label *proc;
++ unsigned long flags;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return;
++
++ flags = pax_get_flags(task);
++
++ proc = task->acl;
++
++ if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
++ flags &= ~MF_PAX_PAGEEXEC;
++ if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
++ flags &= ~MF_PAX_SEGMEXEC;
++ if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
++ flags &= ~MF_PAX_RANDMMAP;
++ if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
++ flags &= ~MF_PAX_EMUTRAMP;
++ if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
++ flags &= ~MF_PAX_MPROTECT;
++
++ if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
++ flags |= MF_PAX_PAGEEXEC;
++ if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
++ flags |= MF_PAX_SEGMEXEC;
++ if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
++ flags |= MF_PAX_RANDMMAP;
++ if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
++ flags |= MF_PAX_EMUTRAMP;
++ if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
++ flags |= MF_PAX_MPROTECT;
++
++ pax_set_flags(task, flags);
++
++ return;
++}
++#endif
++
++#ifdef CONFIG_SYSCTL
++/* Eric Biederman likes breaking userland ABI and every inode-based security
++ system to save 35kb of memory */
++
++/* we modify the passed in filename, but adjust it back before returning */
++static struct acl_object_label *gr_lookup_by_name(char *name, unsigned int len)
++{
++ struct name_entry *nmatch;
++ char *p, *lastp = NULL;
++ struct acl_object_label *obj = NULL, *tmp;
++ struct acl_subject_label *tmpsubj;
++ char c = '\0';
++
++ read_lock(&gr_inode_lock);
++
++ p = name + len - 1;
++ do {
++ nmatch = lookup_name_entry(name);
++ if (lastp != NULL)
++ *lastp = c;
++
++ if (nmatch == NULL)
++ goto next_component;
++ tmpsubj = current->acl;
++ do {
++ obj = lookup_acl_obj_label(nmatch->inode, nmatch->device, tmpsubj);
++ if (obj != NULL) {
++ tmp = obj->globbed;
++ while (tmp) {
++ if (!glob_match(tmp->filename, name)) {
++ obj = tmp;
++ goto found_obj;
++ }
++ tmp = tmp->next;
++ }
++ goto found_obj;
++ }
++ } while ((tmpsubj = tmpsubj->parent_subject));
++next_component:
++ /* end case */
++ if (p == name)
++ break;
++
++ while (*p != '/')
++ p--;
++ if (p == name)
++ lastp = p + 1;
++ else {
++ lastp = p;
++ p--;
++ }
++ c = *lastp;
++ *lastp = '\0';
++ } while (1);
++found_obj:
++ read_unlock(&gr_inode_lock);
++ /* obj returned will always be non-null */
++ return obj;
++}
++
++/* returns 0 when allowing, non-zero on error
++ op of 0 is used for readdir, so we don't log the names of hidden files
++*/
++__u32
++gr_handle_sysctl(const struct ctl_table *table, const int op)
++{
++ ctl_table *tmp;
++ const char *proc_sys = "/proc/sys";
++ char *path;
++ struct acl_object_label *obj;
++ unsigned short len = 0, pos = 0, depth = 0, i;
++ __u32 err = 0;
++ __u32 mode = 0;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++
++ /* for now, ignore operations on non-sysctl entries if it's not a
++ readdir*/
++ if (table->child != NULL && op != 0)
++ return 0;
++
++ mode |= GR_FIND;
++ /* it's only a read if it's an entry, read on dirs is for readdir */
++ if (op & MAY_READ)
++ mode |= GR_READ;
++ if (op & MAY_WRITE)
++ mode |= GR_WRITE;
++
++ preempt_disable();
++
++ path = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
++
++ /* it's only a read/write if it's an actual entry, not a dir
++ (which are opened for readdir)
++ */
++
++ /* convert the requested sysctl entry into a pathname */
++
++ for (tmp = (ctl_table *)table; tmp != NULL; tmp = tmp->parent) {
++ len += strlen(tmp->procname);
++ len++;
++ depth++;
++ }
++
++ if ((len + depth + strlen(proc_sys) + 1) > PAGE_SIZE) {
++ /* deny */
++ goto out;
++ }
++
++ memset(path, 0, PAGE_SIZE);
++
++ memcpy(path, proc_sys, strlen(proc_sys));
++
++ pos += strlen(proc_sys);
++
++ for (; depth > 0; depth--) {
++ path[pos] = '/';
++ pos++;
++ for (i = 1, tmp = (ctl_table *)table; tmp != NULL; tmp = tmp->parent) {
++ if (depth == i) {
++ memcpy(path + pos, tmp->procname,
++ strlen(tmp->procname));
++ pos += strlen(tmp->procname);
++ }
++ i++;
++ }
++ }
++
++ obj = gr_lookup_by_name(path, pos);
++ err = obj->mode & (mode | to_gr_audit(mode) | GR_SUPPRESS);
++
++ if (unlikely((current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) &&
++ ((err & mode) != mode))) {
++ __u32 new_mode = mode;
++
++ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
++
++ err = 0;
++ gr_log_learn_sysctl(current, path, new_mode);
++ } else if (!(err & GR_FIND) && !(err & GR_SUPPRESS) && op != 0) {
++ gr_log_hidden_sysctl(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, path);
++ err = -ENOENT;
++ } else if (!(err & GR_FIND)) {
++ err = -ENOENT;
++ } else if (((err & mode) & ~GR_FIND) != (mode & ~GR_FIND) && !(err & GR_SUPPRESS)) {
++ gr_log_str4(GR_DONT_AUDIT, GR_SYSCTL_ACL_MSG, "denied",
++ path, (mode & GR_READ) ? " reading" : "",
++ (mode & GR_WRITE) ? " writing" : "");
++ err = -EACCES;
++ } else if ((err & mode) != mode) {
++ err = -EACCES;
++ } else if ((((err & mode) & ~GR_FIND) == (mode & ~GR_FIND)) && (err & GR_AUDITS)) {
++ gr_log_str4(GR_DO_AUDIT, GR_SYSCTL_ACL_MSG, "successful",
++ path, (mode & GR_READ) ? " reading" : "",
++ (mode & GR_WRITE) ? " writing" : "");
++ err = 0;
++ } else
++ err = 0;
++
++ out:
++ preempt_enable();
++
++ return err;
++}
++#endif
++
++int
++gr_handle_proc_ptrace(struct task_struct *task)
++{
++ struct file *filp;
++ struct task_struct *tmp = task;
++ struct task_struct *curtemp = current;
++ __u32 retmode;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++
++ read_lock(&tasklist_lock);
++ read_lock(&grsec_exec_file_lock);
++ filp = task->exec_file;
++
++ while (tmp->pid > 0) {
++ if (tmp == curtemp)
++ break;
++ tmp = tmp->parent;
++ }
++
++ if (!filp || (tmp->pid == 0 && !(current->acl->mode & GR_RELAXPTRACE))) {
++ read_unlock(&grsec_exec_file_lock);
++ read_unlock(&tasklist_lock);
++ return 1;
++ }
++
++ retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
++ read_unlock(&grsec_exec_file_lock);
++ read_unlock(&tasklist_lock);
++
++ if (retmode & GR_NOPTRACE)
++ return 1;
++
++ if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
++ && (current->acl != task->acl || (current->acl != current->role->root_label
++ && current->pid != task->pid)))
++ return 1;
++
++ return 0;
++}
++
++int
++gr_handle_ptrace(struct task_struct *task, const long request)
++{
++ struct task_struct *tmp = task;
++ struct task_struct *curtemp = current;
++ __u32 retmode;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return 0;
++
++ read_lock(&tasklist_lock);
++ while (tmp->pid > 0) {
++ if (tmp == curtemp)
++ break;
++ tmp = tmp->parent;
++ }
++
++ if (tmp->pid == 0 && !(current->acl->mode & GR_RELAXPTRACE)) {
++ read_unlock(&tasklist_lock);
++ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
++ return 1;
++ }
++ read_unlock(&tasklist_lock);
++
++ read_lock(&grsec_exec_file_lock);
++ if (unlikely(!task->exec_file)) {
++ read_unlock(&grsec_exec_file_lock);
++ return 0;
++ }
++
++ retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
++ read_unlock(&grsec_exec_file_lock);
++
++ if (retmode & GR_NOPTRACE) {
++ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
++ return 1;
++ }
++
++ if (retmode & GR_PTRACERD) {
++ switch (request) {
++ case PTRACE_POKETEXT:
++ case PTRACE_POKEDATA:
++ case PTRACE_POKEUSR:
++#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
++ case PTRACE_SETREGS:
++ case PTRACE_SETFPREGS:
++#endif
++#ifdef CONFIG_X86
++ case PTRACE_SETFPXREGS:
++#endif
++#ifdef CONFIG_ALTIVEC
++ case PTRACE_SETVRREGS:
++#endif
++ return 1;
++ default:
++ return 0;
++ }
++ } else if (!(current->acl->mode & GR_POVERRIDE) &&
++ !(current->role->roletype & GR_ROLE_GOD) &&
++ (current->acl != task->acl)) {
++ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
++ return 1;
++ }
++
++ return 0;
++}
++
++static int is_writable_mmap(const struct file *filp)
++{
++ struct task_struct *task = current;
++ struct acl_object_label *obj, *obj2;
++
++ if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
++ !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode)) {
++ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
++ obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
++ task->role->root_label);
++ if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
++ return 1;
++ }
++ }
++ return 0;
++}
++
++int
++gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
++{
++ __u32 mode;
++
++ if (unlikely(!file || !(prot & PROT_EXEC)))
++ return 1;
++
++ if (is_writable_mmap(file))
++ return 0;
++
++ mode =
++ gr_search_file(file->f_path.dentry,
++ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
++ file->f_path.mnt);
++
++ if (!gr_tpe_allow(file))
++ return 0;
++
++ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++ return 0;
++ } else if (unlikely(!(mode & GR_EXEC))) {
++ return 0;
++ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
++ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++ return 1;
++ }
++
++ return 1;
++}
++
++int
++gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
++{
++ __u32 mode;
++
++ if (unlikely(!file || !(prot & PROT_EXEC)))
++ return 1;
++
++ if (is_writable_mmap(file))
++ return 0;
++
++ mode =
++ gr_search_file(file->f_path.dentry,
++ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
++ file->f_path.mnt);
++
++ if (!gr_tpe_allow(file))
++ return 0;
++
++ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++ return 0;
++ } else if (unlikely(!(mode & GR_EXEC))) {
++ return 0;
++ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
++ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++ return 1;
++ }
++
++ return 1;
++}
++
++void
++gr_acl_handle_psacct(struct task_struct *task, const long code)
++{
++ unsigned long runtime;
++ unsigned long cputime;
++ unsigned int wday, cday;
++ __u8 whr, chr;
++ __u8 wmin, cmin;
++ __u8 wsec, csec;
++ struct timespec timeval;
++
++ if (unlikely(!(gr_status & GR_READY) || !task->acl ||
++ !(task->acl->mode & GR_PROCACCT)))
++ return;
++
++ do_posix_clock_monotonic_gettime(&timeval);
++ runtime = timeval.tv_sec - task->start_time.tv_sec;
++ wday = runtime / (3600 * 24);
++ runtime -= wday * (3600 * 24);
++ whr = runtime / 3600;
++ runtime -= whr * 3600;
++ wmin = runtime / 60;
++ runtime -= wmin * 60;
++ wsec = runtime;
++
++ cputime = (task->utime + task->stime) / HZ;
++ cday = cputime / (3600 * 24);
++ cputime -= cday * (3600 * 24);
++ chr = cputime / 3600;
++ cputime -= chr * 3600;
++ cmin = cputime / 60;
++ cputime -= cmin * 60;
++ csec = cputime;
++
++ gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
++
++ return;
++}
++
++void gr_set_kernel_label(struct task_struct *task)
++{
++ if (gr_status & GR_READY) {
++ task->role = kernel_role;
++ task->acl = kernel_role->root_label;
++ }
++ return;
++}
++
++int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino)
++{
++ struct task_struct *task = current;
++ struct dentry *dentry = file->f_path.dentry;
++ struct vfsmount *mnt = file->f_path.mnt;
++ struct acl_object_label *obj, *tmp;
++ struct acl_subject_label *subj;
++ unsigned int bufsize;
++ int is_not_root;
++ char *path;
++
++ if (unlikely(!(gr_status & GR_READY)))
++ return 1;
++
++ if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
++ return 1;
++
++ /* ignore Eric Biederman */
++ if (IS_PRIVATE(dentry->d_inode))
++ return 1;
++
++ subj = task->acl;
++ do {
++ obj = lookup_acl_obj_label(ino, dentry->d_inode->i_sb->s_dev, subj);
++ if (obj != NULL)
++ return (obj->mode & GR_FIND) ? 1 : 0;
++ } while ((subj = subj->parent_subject));
++
++ obj = chk_obj_label(dentry, mnt, task->acl);
++ if (obj->globbed == NULL)
++ return (obj->mode & GR_FIND) ? 1 : 0;
++
++ is_not_root = ((obj->filename[0] == '/') &&
++ (obj->filename[1] == '\0')) ? 0 : 1;
++ bufsize = PAGE_SIZE - namelen - is_not_root;
++
++ /* check bufsize > PAGE_SIZE || bufsize == 0 */
++ if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
++ return 1;
++
++ preempt_disable();
++ path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
++ bufsize);
++
++ bufsize = strlen(path);
++
++ /* if base is "/", don't append an additional slash */
++ if (is_not_root)
++ *(path + bufsize) = '/';
++ memcpy(path + bufsize + is_not_root, name, namelen);
++ *(path + bufsize + namelen + is_not_root) = '\0';
++
++ tmp = obj->globbed;
++ while (tmp) {
++ if (!glob_match(tmp->filename, path)) {
++ preempt_enable();
++ return (tmp->mode & GR_FIND) ? 1 : 0;
++ }
++ tmp = tmp->next;
++ }
++ preempt_enable();
++ return (obj->mode & GR_FIND) ? 1 : 0;
++}
++
++EXPORT_SYMBOL(gr_learn_resource);
++EXPORT_SYMBOL(gr_set_kernel_label);
++#ifdef CONFIG_SECURITY
++EXPORT_SYMBOL(gr_check_user_change);
++EXPORT_SYMBOL(gr_check_group_change);
++#endif
++
+diff -urNp linux-2.6.28.8/grsecurity/gracl_cap.c linux-2.6.28.8/grsecurity/gracl_cap.c
+--- linux-2.6.28.8/grsecurity/gracl_cap.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_cap.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,129 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++static const char *captab_log[] = {
++ "CAP_CHOWN",
++ "CAP_DAC_OVERRIDE",
++ "CAP_DAC_READ_SEARCH",
++ "CAP_FOWNER",
++ "CAP_FSETID",
++ "CAP_KILL",
++ "CAP_SETGID",
++ "CAP_SETUID",
++ "CAP_SETPCAP",
++ "CAP_LINUX_IMMUTABLE",
++ "CAP_NET_BIND_SERVICE",
++ "CAP_NET_BROADCAST",
++ "CAP_NET_ADMIN",
++ "CAP_NET_RAW",
++ "CAP_IPC_LOCK",
++ "CAP_IPC_OWNER",
++ "CAP_SYS_MODULE",
++ "CAP_SYS_RAWIO",
++ "CAP_SYS_CHROOT",
++ "CAP_SYS_PTRACE",
++ "CAP_SYS_PACCT",
++ "CAP_SYS_ADMIN",
++ "CAP_SYS_BOOT",
++ "CAP_SYS_NICE",
++ "CAP_SYS_RESOURCE",
++ "CAP_SYS_TIME",
++ "CAP_SYS_TTY_CONFIG",
++ "CAP_MKNOD",
++ "CAP_LEASE",
++ "CAP_AUDIT_WRITE",
++ "CAP_AUDIT_CONTROL",
++ "CAP_SETFCAP",
++ "CAP_MAC_OVERRIDE",
++ "CAP_MAC_ADMIN"
++};
++
++EXPORT_SYMBOL(gr_task_is_capable);
++EXPORT_SYMBOL(gr_is_capable_nolog);
++
++int
++gr_task_is_capable(struct task_struct *task, const int cap)
++{
++ struct acl_subject_label *curracl;
++ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
++
++ if (!gr_acl_is_enabled())
++ return 1;
++
++ curracl = task->acl;
++
++ cap_drop = curracl->cap_lower;
++ cap_mask = curracl->cap_mask;
++
++ while ((curracl = curracl->parent_subject)) {
++ /* if the cap isn't specified in the current computed mask but is specified in the
++ current level subject, and is lowered in the current level subject, then add
++ it to the set of dropped capabilities
++ otherwise, add the current level subject's mask to the current computed mask
++ */
++ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
++ cap_raise(cap_mask, cap);
++ if (cap_raised(curracl->cap_lower, cap))
++ cap_raise(cap_drop, cap);
++ }
++ }
++
++ if (!cap_raised(cap_drop, cap))
++ return 1;
++
++ curracl = task->acl;
++
++ if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN))
++ && cap_raised(task->cap_effective, cap)) {
++ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
++ task->role->roletype, task->uid,
++ task->gid, task->exec_file ?
++ gr_to_filename(task->exec_file->f_path.dentry,
++ task->exec_file->f_path.mnt) : curracl->filename,
++ curracl->filename, 0UL,
++ 0UL, "", (unsigned long) cap, NIPQUAD(task->signal->curr_ip));
++ return 1;
++ }
++
++ if ((cap >= 0) && (cap < (sizeof(captab_log)/sizeof(captab_log[0]))) && cap_raised(task->cap_effective, cap))
++ gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
++ return 0;
++}
++
++int
++gr_is_capable_nolog(const int cap)
++{
++ struct acl_subject_label *curracl;
++ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
++
++ if (!gr_acl_is_enabled())
++ return 1;
++
++ curracl = current->acl;
++
++ cap_drop = curracl->cap_lower;
++ cap_mask = curracl->cap_mask;
++
++ while ((curracl = curracl->parent_subject)) {
++ /* if the cap isn't specified in the current computed mask but is specified in the
++ current level subject, and is lowered in the current level subject, then add
++ it to the set of dropped capabilities
++ otherwise, add the current level subject's mask to the current computed mask
++ */
++ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
++ cap_raise(cap_mask, cap);
++ if (cap_raised(curracl->cap_lower, cap))
++ cap_raise(cap_drop, cap);
++ }
++ }
++
++ if (!cap_raised(cap_drop, cap))
++ return 1;
++
++ return 0;
++}
++
+diff -urNp linux-2.6.28.8/grsecurity/gracl_fs.c linux-2.6.28.8/grsecurity/gracl_fs.c
+--- linux-2.6.28.8/grsecurity/gracl_fs.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_fs.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,423 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/types.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/stat.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/gracl.h>
++
++__u32
++gr_acl_handle_hidden_file(const struct dentry * dentry,
++ const struct vfsmount * mnt)
++{
++ __u32 mode;
++
++ if (unlikely(!dentry->d_inode))
++ return GR_FIND;
++
++ mode =
++ gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
++
++ if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
++ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
++ return mode;
++ } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
++ return 0;
++ } else if (unlikely(!(mode & GR_FIND)))
++ return 0;
++
++ return GR_FIND;
++}
++
++__u32
++gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
++ const int fmode)
++{
++ __u32 reqmode = GR_FIND;
++ __u32 mode;
++
++ if (unlikely(!dentry->d_inode))
++ return reqmode;
++
++ if (unlikely(fmode & O_APPEND))
++ reqmode |= GR_APPEND;
++ else if (unlikely(fmode & FMODE_WRITE))
++ reqmode |= GR_WRITE;
++ if (likely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY)))
++ reqmode |= GR_READ;
++
++ mode =
++ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
++ mnt);
++
++ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
++ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
++ reqmode & GR_READ ? " reading" : "",
++ reqmode & GR_WRITE ? " writing" : reqmode &
++ GR_APPEND ? " appending" : "");
++ return reqmode;
++ } else
++ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
++ {
++ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
++ reqmode & GR_READ ? " reading" : "",
++ reqmode & GR_WRITE ? " writing" : reqmode &
++ GR_APPEND ? " appending" : "");
++ return 0;
++ } else if (unlikely((mode & reqmode) != reqmode))
++ return 0;
++
++ return reqmode;
++}
++
++__u32
++gr_acl_handle_creat(const struct dentry * dentry,
++ const struct dentry * p_dentry,
++ const struct vfsmount * p_mnt, const int fmode,
++ const int imode)
++{
++ __u32 reqmode = GR_WRITE | GR_CREATE;
++ __u32 mode;
++
++ if (unlikely(fmode & O_APPEND))
++ reqmode |= GR_APPEND;
++ if (unlikely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY)))
++ reqmode |= GR_READ;
++ if (unlikely((fmode & O_CREAT) && (imode & (S_ISUID | S_ISGID))))
++ reqmode |= GR_SETID;
++
++ mode =
++ gr_check_create(dentry, p_dentry, p_mnt,
++ reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
++
++ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
++ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
++ reqmode & GR_READ ? " reading" : "",
++ reqmode & GR_WRITE ? " writing" : reqmode &
++ GR_APPEND ? " appending" : "");
++ return reqmode;
++ } else
++ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
++ {
++ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
++ reqmode & GR_READ ? " reading" : "",
++ reqmode & GR_WRITE ? " writing" : reqmode &
++ GR_APPEND ? " appending" : "");
++ return 0;
++ } else if (unlikely((mode & reqmode) != reqmode))
++ return 0;
++
++ return reqmode;
++}
++
++__u32
++gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
++ const int fmode)
++{
++ __u32 mode, reqmode = GR_FIND;
++
++ if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
++ reqmode |= GR_EXEC;
++ if (fmode & S_IWOTH)
++ reqmode |= GR_WRITE;
++ if (fmode & S_IROTH)
++ reqmode |= GR_READ;
++
++ mode =
++ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
++ mnt);
++
++ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
++ gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
++ reqmode & GR_READ ? " reading" : "",
++ reqmode & GR_WRITE ? " writing" : "",
++ reqmode & GR_EXEC ? " executing" : "");
++ return reqmode;
++ } else
++ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
++ {
++ gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
++ reqmode & GR_READ ? " reading" : "",
++ reqmode & GR_WRITE ? " writing" : "",
++ reqmode & GR_EXEC ? " executing" : "");
++ return 0;
++ } else if (unlikely((mode & reqmode) != reqmode))
++ return 0;
++
++ return reqmode;
++}
++
++static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
++{
++ __u32 mode;
++
++ mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
++
++ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
++ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
++ return mode;
++ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
++ return 0;
++ } else if (unlikely((mode & (reqmode)) != (reqmode)))
++ return 0;
++
++ return (reqmode);
++}
++
++__u32
++gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_fchmod(const struct dentry *dentry, const struct vfsmount *mnt,
++ mode_t mode)
++{
++ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
++ return 1;
++
++ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) {
++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
++ GR_FCHMOD_ACL_MSG);
++ } else {
++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_FCHMOD_ACL_MSG);
++ }
++}
++
++__u32
++gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
++ mode_t mode)
++{
++ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) {
++ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
++ GR_CHMOD_ACL_MSG);
++ } else {
++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
++ }
++}
++
++__u32
++gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
++ GR_UNIXCONNECT_ACL_MSG);
++}
++
++/* hardlinks require at minimum create permission,
++ any additional privilege required is based on the
++ privilege of the file being linked to
++*/
++__u32
++gr_acl_handle_link(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt,
++ const struct dentry * old_dentry,
++ const struct vfsmount * old_mnt, const char *to)
++{
++ __u32 mode;
++ __u32 needmode = GR_CREATE | GR_LINK;
++ __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
++
++ mode =
++ gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
++ old_mnt);
++
++ if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
++ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to);
++ return mode;
++ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
++ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to);
++ return 0;
++ } else if (unlikely((mode & needmode) != needmode))
++ return 0;
++
++ return 1;
++}
++
++__u32
++gr_acl_handle_symlink(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt, const char *from)
++{
++ __u32 needmode = GR_WRITE | GR_CREATE;
++ __u32 mode;
++
++ mode =
++ gr_check_create(new_dentry, parent_dentry, parent_mnt,
++ GR_CREATE | GR_AUDIT_CREATE |
++ GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
++
++ if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
++ gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt);
++ return mode;
++ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
++ gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt);
++ return 0;
++ } else if (unlikely((mode & needmode) != needmode))
++ return 0;
++
++ return (GR_WRITE | GR_CREATE);
++}
++
++static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt)
++{
++ __u32 mode;
++
++ mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
++
++ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
++ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
++ return mode;
++ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
++ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
++ return 0;
++ } else if (unlikely((mode & (reqmode)) != (reqmode)))
++ return 0;
++
++ return (reqmode);
++}
++
++__u32
++gr_acl_handle_mknod(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt,
++ const int mode)
++{
++ __u32 reqmode = GR_WRITE | GR_CREATE;
++ if (unlikely(mode & (S_ISUID | S_ISGID)))
++ reqmode |= GR_SETID;
++
++ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
++ reqmode, GR_MKNOD_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_mkdir(const struct dentry *new_dentry,
++ const struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt)
++{
++ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
++ GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
++}
++
++#define RENAME_CHECK_SUCCESS(old, new) \
++ (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
++ ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
++
++int
++gr_acl_handle_rename(struct dentry *new_dentry,
++ struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt,
++ struct dentry *old_dentry,
++ struct inode *old_parent_inode,
++ struct vfsmount *old_mnt, const char *newname)
++{
++ __u32 comp1, comp2;
++ int error = 0;
++
++ if (unlikely(!gr_acl_is_enabled()))
++ return 0;
++
++ if (!new_dentry->d_inode) {
++ comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
++ GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
++ GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
++ comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
++ GR_DELETE | GR_AUDIT_DELETE |
++ GR_AUDIT_READ | GR_AUDIT_WRITE |
++ GR_SUPPRESS, old_mnt);
++ } else {
++ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
++ GR_CREATE | GR_DELETE |
++ GR_AUDIT_CREATE | GR_AUDIT_DELETE |
++ GR_AUDIT_READ | GR_AUDIT_WRITE |
++ GR_SUPPRESS, parent_mnt);
++ comp2 =
++ gr_search_file(old_dentry,
++ GR_READ | GR_WRITE | GR_AUDIT_READ |
++ GR_DELETE | GR_AUDIT_DELETE |
++ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
++ }
++
++ if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
++ ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
++ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname);
++ else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
++ && !(comp2 & GR_SUPPRESS)) {
++ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname);
++ error = -EACCES;
++ } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
++ error = -EACCES;
++
++ return error;
++}
++
++void
++gr_acl_handle_exit(void)
++{
++ u16 id;
++ char *rolename;
++ struct file *exec_file;
++
++ if (unlikely(current->acl_sp_role && gr_acl_is_enabled())) {
++ id = current->acl_role_id;
++ rolename = current->role->rolename;
++ gr_set_acls(1);
++ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
++ }
++
++ write_lock(&grsec_exec_file_lock);
++ exec_file = current->exec_file;
++ current->exec_file = NULL;
++ write_unlock(&grsec_exec_file_lock);
++
++ if (exec_file)
++ fput(exec_file);
++}
++
++int
++gr_acl_handle_procpidmem(const struct task_struct *task)
++{
++ if (unlikely(!gr_acl_is_enabled()))
++ return 0;
++
++ if (task != current && task->acl->mode & GR_PROTPROCFD)
++ return -EACCES;
++
++ return 0;
++}
+diff -urNp linux-2.6.28.8/grsecurity/gracl_ip.c linux-2.6.28.8/grsecurity/gracl_ip.c
+--- linux-2.6.28.8/grsecurity/gracl_ip.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_ip.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,338 @@
++#include <linux/kernel.h>
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <net/sock.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/skbuff.h>
++#include <linux/ip.h>
++#include <linux/udp.h>
++#include <linux/smp_lock.h>
++#include <linux/types.h>
++#include <linux/sched.h>
++#include <linux/netdevice.h>
++#include <linux/inetdevice.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++#define GR_BIND 0x01
++#define GR_CONNECT 0x02
++#define GR_INVERT 0x04
++#define GR_BINDOVERRIDE 0x08
++#define GR_CONNECTOVERRIDE 0x10
++
++static const char * gr_protocols[256] = {
++ "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
++ "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
++ "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
++ "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
++ "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
++ "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
++ "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
++ "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
++ "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
++ "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak",
++ "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf",
++ "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
++ "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
++ "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
++ "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
++ "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
++ "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
++ "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
++ "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
++ "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
++ "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
++ "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
++ "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
++ "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
++ "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
++ "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
++ "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
++ "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
++ "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
++ "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
++ "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
++ "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
++ };
++
++static const char * gr_socktypes[11] = {
++ "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6",
++ "unknown:7", "unknown:8", "unknown:9", "packet"
++ };
++
++const char *
++gr_proto_to_name(unsigned char proto)
++{
++ return gr_protocols[proto];
++}
++
++const char *
++gr_socktype_to_name(unsigned char type)
++{
++ return gr_socktypes[type];
++}
++
++int
++gr_search_socket(const int domain, const int type, const int protocol)
++{
++ struct acl_subject_label *curr;
++
++ if (unlikely(!gr_acl_is_enabled()))
++ goto exit;
++
++ if ((domain < 0) || (type < 0) || (protocol < 0) || (domain != PF_INET)
++ || (domain >= NPROTO) || (type >= SOCK_MAX) || (protocol > 255))
++ goto exit; // let the kernel handle it
++
++ curr = current->acl;
++
++ if (!curr->ips)
++ goto exit;
++
++ if ((curr->ip_type & (1 << type)) &&
++ (curr->ip_proto[protocol / 32] & (1 << (protocol % 32))))
++ goto exit;
++
++ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
++ /* we don't place acls on raw sockets , and sometimes
++ dgram/ip sockets are opened for ioctl and not
++ bind/connect, so we'll fake a bind learn log */
++ if (type == SOCK_RAW || type == SOCK_PACKET) {
++ __u32 fakeip = 0;
++ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
++ current->role->roletype, current->uid,
++ current->gid, current->exec_file ?
++ gr_to_filename(current->exec_file->f_path.dentry,
++ current->exec_file->f_path.mnt) :
++ curr->filename, curr->filename,
++ NIPQUAD(fakeip), 0, type,
++ protocol, GR_CONNECT,
++NIPQUAD(current->signal->curr_ip));
++ } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
++ __u32 fakeip = 0;
++ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
++ current->role->roletype, current->uid,
++ current->gid, current->exec_file ?
++ gr_to_filename(current->exec_file->f_path.dentry,
++ current->exec_file->f_path.mnt) :
++ curr->filename, curr->filename,
++ NIPQUAD(fakeip), 0, type,
++ protocol, GR_BIND, NIPQUAD(current->signal->curr_ip));
++ }
++ /* we'll log when they use connect or bind */
++ goto exit;
++ }
++
++ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, "inet",
++ gr_socktype_to_name(type), gr_proto_to_name(protocol));
++
++ return 0;
++ exit:
++ return 1;
++}
++
++int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask)
++{
++ if ((ip->mode & mode) &&
++ (ip_port >= ip->low) &&
++ (ip_port <= ip->high) &&
++ ((ntohl(ip_addr) & our_netmask) ==
++ (ntohl(our_addr) & our_netmask))
++ && (ip->proto[protocol / 32] & (1 << (protocol % 32)))
++ && (ip->type & (1 << type))) {
++ if (ip->mode & GR_INVERT)
++ return 2; // specifically denied
++ else
++ return 1; // allowed
++ }
++
++ return 0; // not specifically allowed, may continue parsing
++}
++
++static int
++gr_search_connectbind(const int full_mode, struct sock *sk,
++ struct sockaddr_in *addr, const int type)
++{
++ char iface[IFNAMSIZ] = {0};
++ struct acl_subject_label *curr;
++ struct acl_ip_label *ip;
++ struct inet_sock *isk;
++ struct net_device *dev;
++ struct in_device *idev;
++ unsigned long i;
++ int ret;
++ int mode = full_mode & (GR_BIND | GR_CONNECT);
++ __u32 ip_addr = 0;
++ __u32 our_addr;
++ __u32 our_netmask;
++ char *p;
++ __u16 ip_port = 0;
++
++ if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
++ return 0;
++
++ curr = current->acl;
++ isk = inet_sk(sk);
++
++ /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
++ if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
++ addr->sin_addr.s_addr = curr->inaddr_any_override;
++ if ((full_mode & GR_CONNECT) && isk->saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
++ struct sockaddr_in saddr;
++ int err;
++
++ saddr.sin_family = AF_INET;
++ saddr.sin_addr.s_addr = curr->inaddr_any_override;
++ saddr.sin_port = isk->sport;
++
++ err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
++ if (err)
++ return err;
++
++ err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
++ if (err)
++ return err;
++ }
++
++ if (!curr->ips)
++ return 0;
++
++ ip_addr = addr->sin_addr.s_addr;
++ ip_port = ntohs(addr->sin_port);
++
++ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
++ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
++ current->role->roletype, current->uid,
++ current->gid, current->exec_file ?
++ gr_to_filename(current->exec_file->f_path.dentry,
++ current->exec_file->f_path.mnt) :
++ curr->filename, curr->filename,
++ NIPQUAD(ip_addr), ip_port, type,
++ sk->sk_protocol, mode, NIPQUAD(current->signal->curr_ip));
++ return 0;
++ }
++
++ for (i = 0; i < curr->ip_num; i++) {
++ ip = *(curr->ips + i);
++ if (ip->iface != NULL) {
++ strncpy(iface, ip->iface, IFNAMSIZ - 1);
++ p = strchr(iface, ':');
++ if (p != NULL)
++ *p = '\0';
++ dev = dev_get_by_name(sock_net(sk), iface);
++ if (dev == NULL)
++ continue;
++ idev = in_dev_get(dev);
++ if (idev == NULL) {
++ dev_put(dev);
++ continue;
++ }
++ rcu_read_lock();
++ for_ifa(idev) {
++ if (!strcmp(ip->iface, ifa->ifa_label)) {
++ our_addr = ifa->ifa_address;
++ our_netmask = 0xffffffff;
++ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
++ if (ret == 1) {
++ rcu_read_unlock();
++ in_dev_put(idev);
++ dev_put(dev);
++ return 0;
++ } else if (ret == 2) {
++ rcu_read_unlock();
++ in_dev_put(idev);
++ dev_put(dev);
++ goto denied;
++ }
++ }
++ } endfor_ifa(idev);
++ rcu_read_unlock();
++ in_dev_put(idev);
++ dev_put(dev);
++ } else {
++ our_addr = ip->addr;
++ our_netmask = ip->netmask;
++ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
++ if (ret == 1)
++ return 0;
++ else if (ret == 2)
++ goto denied;
++ }
++ }
++
++denied:
++ if (mode == GR_BIND)
++ gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, NIPQUAD(ip_addr), ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
++ else if (mode == GR_CONNECT)
++ gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, NIPQUAD(ip_addr), ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
++
++ return -EACCES;
++}
++
++int
++gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
++{
++ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
++}
++
++int
++gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
++{
++ return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
++}
++
++int gr_search_listen(struct socket *sock)
++{
++ struct sock *sk = sock->sk;
++ struct sockaddr_in addr;
++
++ addr.sin_addr.s_addr = inet_sk(sk)->saddr;
++ addr.sin_port = inet_sk(sk)->sport;
++
++ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
++}
++
++int gr_search_accept(struct socket *sock)
++{
++ struct sock *sk = sock->sk;
++ struct sockaddr_in addr;
++
++ addr.sin_addr.s_addr = inet_sk(sk)->saddr;
++ addr.sin_port = inet_sk(sk)->sport;
++
++ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
++}
++
++int
++gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
++{
++ if (addr)
++ return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
++ else {
++ struct sockaddr_in sin;
++ const struct inet_sock *inet = inet_sk(sk);
++
++ sin.sin_addr.s_addr = inet->daddr;
++ sin.sin_port = inet->dport;
++
++ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
++ }
++}
++
++int
++gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
++{
++ struct sockaddr_in sin;
++
++ if (unlikely(skb->len < sizeof (struct udphdr)))
++ return 0; // skip this packet
++
++ sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
++ sin.sin_port = udp_hdr(skb)->source;
++
++ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
++}
+diff -urNp linux-2.6.28.8/grsecurity/gracl_learn.c linux-2.6.28.8/grsecurity/gracl_learn.c
+--- linux-2.6.28.8/grsecurity/gracl_learn.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_learn.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,211 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/sched.h>
++#include <linux/poll.h>
++#include <linux/smp_lock.h>
++#include <linux/string.h>
++#include <linux/file.h>
++#include <linux/types.h>
++#include <linux/vmalloc.h>
++#include <linux/grinternal.h>
++
++extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
++ size_t count, loff_t *ppos);
++extern int gr_acl_is_enabled(void);
++
++static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
++static int gr_learn_attached;
++
++/* use a 512k buffer */
++#define LEARN_BUFFER_SIZE (512 * 1024)
++
++static DEFINE_SPINLOCK(gr_learn_lock);
++static DECLARE_MUTEX(gr_learn_user_sem);
++
++/* we need to maintain two buffers, so that the kernel context of grlearn
++ uses a semaphore around the userspace copying, and the other kernel contexts
++ use a spinlock when copying into the buffer, since they cannot sleep
++*/
++static char *learn_buffer;
++static char *learn_buffer_user;
++static int learn_buffer_len;
++static int learn_buffer_user_len;
++
++static ssize_t
++read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
++{
++ DECLARE_WAITQUEUE(wait, current);
++ ssize_t retval = 0;
++
++ add_wait_queue(&learn_wait, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++ do {
++ down(&gr_learn_user_sem);
++ spin_lock(&gr_learn_lock);
++ if (learn_buffer_len)
++ break;
++ spin_unlock(&gr_learn_lock);
++ up(&gr_learn_user_sem);
++ if (file->f_flags & O_NONBLOCK) {
++ retval = -EAGAIN;
++ goto out;
++ }
++ if (signal_pending(current)) {
++ retval = -ERESTARTSYS;
++ goto out;
++ }
++
++ schedule();
++ } while (1);
++
++ memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
++ learn_buffer_user_len = learn_buffer_len;
++ retval = learn_buffer_len;
++ learn_buffer_len = 0;
++
++ spin_unlock(&gr_learn_lock);
++
++ if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
++ retval = -EFAULT;
++
++ up(&gr_learn_user_sem);
++out:
++ set_current_state(TASK_RUNNING);
++ remove_wait_queue(&learn_wait, &wait);
++ return retval;
++}
++
++static unsigned int
++poll_learn(struct file * file, poll_table * wait)
++{
++ poll_wait(file, &learn_wait, wait);
++
++ if (learn_buffer_len)
++ return (POLLIN | POLLRDNORM);
++
++ return 0;
++}
++
++void
++gr_clear_learn_entries(void)
++{
++ char *tmp;
++
++ down(&gr_learn_user_sem);
++ if (learn_buffer != NULL) {
++ spin_lock(&gr_learn_lock);
++ tmp = learn_buffer;
++ learn_buffer = NULL;
++ spin_unlock(&gr_learn_lock);
++ vfree(learn_buffer);
++ }
++ if (learn_buffer_user != NULL) {
++ vfree(learn_buffer_user);
++ learn_buffer_user = NULL;
++ }
++ learn_buffer_len = 0;
++ up(&gr_learn_user_sem);
++
++ return;
++}
++
++void
++gr_add_learn_entry(const char *fmt, ...)
++{
++ va_list args;
++ unsigned int len;
++
++ if (!gr_learn_attached)
++ return;
++
++ spin_lock(&gr_learn_lock);
++
++ /* leave a gap at the end so we know when it's "full" but don't have to
++ compute the exact length of the string we're trying to append
++ */
++ if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
++ spin_unlock(&gr_learn_lock);
++ wake_up_interruptible(&learn_wait);
++ return;
++ }
++ if (learn_buffer == NULL) {
++ spin_unlock(&gr_learn_lock);
++ return;
++ }
++
++ va_start(args, fmt);
++ len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
++ va_end(args);
++
++ learn_buffer_len += len + 1;
++
++ spin_unlock(&gr_learn_lock);
++ wake_up_interruptible(&learn_wait);
++
++ return;
++}
++
++static int
++open_learn(struct inode *inode, struct file *file)
++{
++ if (file->f_mode & FMODE_READ && gr_learn_attached)
++ return -EBUSY;
++ if (file->f_mode & FMODE_READ) {
++ int retval = 0;
++ down(&gr_learn_user_sem);
++ if (learn_buffer == NULL)
++ learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
++ if (learn_buffer_user == NULL)
++ learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
++ if (learn_buffer == NULL) {
++ retval = -ENOMEM;
++ goto out_error;
++ }
++ if (learn_buffer_user == NULL) {
++ retval = -ENOMEM;
++ goto out_error;
++ }
++ learn_buffer_len = 0;
++ learn_buffer_user_len = 0;
++ gr_learn_attached = 1;
++out_error:
++ up(&gr_learn_user_sem);
++ return retval;
++ }
++ return 0;
++}
++
++static int
++close_learn(struct inode *inode, struct file *file)
++{
++ char *tmp;
++
++ if (file->f_mode & FMODE_READ) {
++ down(&gr_learn_user_sem);
++ if (learn_buffer != NULL) {
++ spin_lock(&gr_learn_lock);
++ tmp = learn_buffer;
++ learn_buffer = NULL;
++ spin_unlock(&gr_learn_lock);
++ vfree(tmp);
++ }
++ if (learn_buffer_user != NULL) {
++ vfree(learn_buffer_user);
++ learn_buffer_user = NULL;
++ }
++ learn_buffer_len = 0;
++ learn_buffer_user_len = 0;
++ gr_learn_attached = 0;
++ up(&gr_learn_user_sem);
++ }
++
++ return 0;
++}
++
++struct file_operations grsec_fops = {
++ .read = read_learn,
++ .write = write_grsec_handler,
++ .open = open_learn,
++ .release = close_learn,
++ .poll = poll_learn,
++};
+diff -urNp linux-2.6.28.8/grsecurity/gracl_res.c linux-2.6.28.8/grsecurity/gracl_res.c
+--- linux-2.6.28.8/grsecurity/gracl_res.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_res.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,45 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/gracl.h>
++#include <linux/grinternal.h>
++
++static const char *restab_log[] = {
++ [RLIMIT_CPU] = "RLIMIT_CPU",
++ [RLIMIT_FSIZE] = "RLIMIT_FSIZE",
++ [RLIMIT_DATA] = "RLIMIT_DATA",
++ [RLIMIT_STACK] = "RLIMIT_STACK",
++ [RLIMIT_CORE] = "RLIMIT_CORE",
++ [RLIMIT_RSS] = "RLIMIT_RSS",
++ [RLIMIT_NPROC] = "RLIMIT_NPROC",
++ [RLIMIT_NOFILE] = "RLIMIT_NOFILE",
++ [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
++ [RLIMIT_AS] = "RLIMIT_AS",
++ [RLIMIT_LOCKS] = "RLIMIT_LOCKS",
++ [RLIMIT_LOCKS + 1] = "RLIMIT_CRASH"
++};
++
++void
++gr_log_resource(const struct task_struct *task,
++ const int res, const unsigned long wanted, const int gt)
++{
++ if (res == RLIMIT_NPROC &&
++ (cap_raised(task->cap_effective, CAP_SYS_ADMIN) ||
++ cap_raised(task->cap_effective, CAP_SYS_RESOURCE)))
++ return;
++ else if (res == RLIMIT_MEMLOCK &&
++ cap_raised(task->cap_effective, CAP_IPC_LOCK))
++ return;
++
++ if (!gr_acl_is_enabled() && !grsec_resource_logging)
++ return;
++
++ preempt_disable();
++
++ if (unlikely(((gt && wanted > task->signal->rlim[res].rlim_cur) ||
++ (!gt && wanted >= task->signal->rlim[res].rlim_cur)) &&
++ task->signal->rlim[res].rlim_cur != RLIM_INFINITY))
++ gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], task->signal->rlim[res].rlim_cur);
++ preempt_enable_no_resched();
++
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/gracl_segv.c linux-2.6.28.8/grsecurity/gracl_segv.c
+--- linux-2.6.28.8/grsecurity/gracl_segv.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_segv.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,304 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <asm/mman.h>
++#include <net/sock.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/smp_lock.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/sched.h>
++#include <linux/timer.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++static struct crash_uid *uid_set;
++static unsigned short uid_used;
++static DEFINE_SPINLOCK(gr_uid_lock);
++extern rwlock_t gr_inode_lock;
++extern struct acl_subject_label *
++ lookup_acl_subj_label(const ino_t inode, const dev_t dev,
++ struct acl_role_label *role);
++extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
++
++int
++gr_init_uidset(void)
++{
++ uid_set =
++ kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
++ uid_used = 0;
++
++ return uid_set ? 1 : 0;
++}
++
++void
++gr_free_uidset(void)
++{
++ if (uid_set)
++ kfree(uid_set);
++
++ return;
++}
++
++int
++gr_find_uid(const uid_t uid)
++{
++ struct crash_uid *tmp = uid_set;
++ uid_t buid;
++ int low = 0, high = uid_used - 1, mid;
++
++ while (high >= low) {
++ mid = (low + high) >> 1;
++ buid = tmp[mid].uid;
++ if (buid == uid)
++ return mid;
++ if (buid > uid)
++ high = mid - 1;
++ if (buid < uid)
++ low = mid + 1;
++ }
++
++ return -1;
++}
++
++static __inline__ void
++gr_insertsort(void)
++{
++ unsigned short i, j;
++ struct crash_uid index;
++
++ for (i = 1; i < uid_used; i++) {
++ index = uid_set[i];
++ j = i;
++ while ((j > 0) && uid_set[j - 1].uid > index.uid) {
++ uid_set[j] = uid_set[j - 1];
++ j--;
++ }
++ uid_set[j] = index;
++ }
++
++ return;
++}
++
++static __inline__ void
++gr_insert_uid(const uid_t uid, const unsigned long expires)
++{
++ int loc;
++
++ if (uid_used == GR_UIDTABLE_MAX)
++ return;
++
++ loc = gr_find_uid(uid);
++
++ if (loc >= 0) {
++ uid_set[loc].expires = expires;
++ return;
++ }
++
++ uid_set[uid_used].uid = uid;
++ uid_set[uid_used].expires = expires;
++ uid_used++;
++
++ gr_insertsort();
++
++ return;
++}
++
++void
++gr_remove_uid(const unsigned short loc)
++{
++ unsigned short i;
++
++ for (i = loc + 1; i < uid_used; i++)
++ uid_set[i - 1] = uid_set[i];
++
++ uid_used--;
++
++ return;
++}
++
++int
++gr_check_crash_uid(const uid_t uid)
++{
++ int loc;
++ int ret = 0;
++
++ if (unlikely(!gr_acl_is_enabled()))
++ return 0;
++
++ spin_lock(&gr_uid_lock);
++ loc = gr_find_uid(uid);
++
++ if (loc < 0)
++ goto out_unlock;
++
++ if (time_before_eq(uid_set[loc].expires, get_seconds()))
++ gr_remove_uid(loc);
++ else
++ ret = 1;
++
++out_unlock:
++ spin_unlock(&gr_uid_lock);
++ return ret;
++}
++
++static __inline__ int
++proc_is_setxid(const struct task_struct *task)
++{
++ if (task->uid != task->euid || task->uid != task->suid ||
++ task->uid != task->fsuid)
++ return 1;
++ if (task->gid != task->egid || task->gid != task->sgid ||
++ task->gid != task->fsgid)
++ return 1;
++
++ return 0;
++}
++static __inline__ int
++gr_fake_force_sig(int sig, struct task_struct *t)
++{
++ unsigned long int flags;
++ int ret, blocked, ignored;
++ struct k_sigaction *action;
++
++ spin_lock_irqsave(&t->sighand->siglock, flags);
++ action = &t->sighand->action[sig-1];
++ ignored = action->sa.sa_handler == SIG_IGN;
++ blocked = sigismember(&t->blocked, sig);
++ if (blocked || ignored) {
++ action->sa.sa_handler = SIG_DFL;
++ if (blocked) {
++ sigdelset(&t->blocked, sig);
++ recalc_sigpending_and_wake(t);
++ }
++ }
++ if (action->sa.sa_handler == SIG_DFL)
++ t->signal->flags &= ~SIGNAL_UNKILLABLE;
++ ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
++
++ spin_unlock_irqrestore(&t->sighand->siglock, flags);
++
++ return ret;
++}
++
++void
++gr_handle_crash(struct task_struct *task, const int sig)
++{
++ struct acl_subject_label *curr;
++ struct acl_subject_label *curr2;
++ struct task_struct *tsk, *tsk2;
++
++ if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
++ return;
++
++ if (unlikely(!gr_acl_is_enabled()))
++ return;
++
++ curr = task->acl;
++
++ if (!(curr->resmask & (1 << GR_CRASH_RES)))
++ return;
++
++ if (time_before_eq(curr->expires, get_seconds())) {
++ curr->expires = 0;
++ curr->crashes = 0;
++ }
++
++ curr->crashes++;
++
++ if (!curr->expires)
++ curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
++
++ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
++ time_after(curr->expires, get_seconds())) {
++ if (task->uid && proc_is_setxid(task)) {
++ gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
++ spin_lock(&gr_uid_lock);
++ gr_insert_uid(task->uid, curr->expires);
++ spin_unlock(&gr_uid_lock);
++ curr->expires = 0;
++ curr->crashes = 0;
++ read_lock(&tasklist_lock);
++ do_each_thread(tsk2, tsk) {
++ if (tsk != task && tsk->uid == task->uid)
++ gr_fake_force_sig(SIGKILL, tsk);
++ } while_each_thread(tsk2, tsk);
++ read_unlock(&tasklist_lock);
++ } else {
++ gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
++ read_lock(&tasklist_lock);
++ do_each_thread(tsk2, tsk) {
++ if (likely(tsk != task)) {
++ curr2 = tsk->acl;
++
++ if (curr2->device == curr->device &&
++ curr2->inode == curr->inode)
++ gr_fake_force_sig(SIGKILL, tsk);
++ }
++ } while_each_thread(tsk2, tsk);
++ read_unlock(&tasklist_lock);
++ }
++ }
++
++ return;
++}
++
++int
++gr_check_crash_exec(const struct file *filp)
++{
++ struct acl_subject_label *curr;
++
++ if (unlikely(!gr_acl_is_enabled()))
++ return 0;
++
++ read_lock(&gr_inode_lock);
++ curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino,
++ filp->f_path.dentry->d_inode->i_sb->s_dev,
++ current->role);
++ read_unlock(&gr_inode_lock);
++
++ if (!curr || !(curr->resmask & (1 << GR_CRASH_RES)) ||
++ (!curr->crashes && !curr->expires))
++ return 0;
++
++ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
++ time_after(curr->expires, get_seconds()))
++ return 1;
++ else if (time_before_eq(curr->expires, get_seconds())) {
++ curr->crashes = 0;
++ curr->expires = 0;
++ }
++
++ return 0;
++}
++
++void
++gr_handle_alertkill(struct task_struct *task)
++{
++ struct acl_subject_label *curracl;
++ __u32 curr_ip;
++ struct task_struct *p, *p2;
++
++ if (unlikely(!gr_acl_is_enabled()))
++ return;
++
++ curracl = task->acl;
++ curr_ip = task->signal->curr_ip;
++
++ if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
++ read_lock(&tasklist_lock);
++ do_each_thread(p2, p) {
++ if (p->signal->curr_ip == curr_ip)
++ gr_fake_force_sig(SIGKILL, p);
++ } while_each_thread(p2, p);
++ read_unlock(&tasklist_lock);
++ } else if (curracl->mode & GR_KILLPROC)
++ gr_fake_force_sig(SIGKILL, task);
++
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/gracl_shm.c linux-2.6.28.8/grsecurity/gracl_shm.c
+--- linux-2.6.28.8/grsecurity/gracl_shm.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/gracl_shm.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,33 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/ipc.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++int
++gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++ const time_t shm_createtime, const uid_t cuid, const int shmid)
++{
++ struct task_struct *task;
++
++ if (!gr_acl_is_enabled())
++ return 1;
++
++ task = find_task_by_vpid(shm_cprid);
++
++ if (unlikely(!task))
++ task = find_task_by_vpid(shm_lapid);
++
++ if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) ||
++ (task->pid == shm_lapid)) &&
++ (task->acl->mode & GR_PROTSHM) &&
++ (task->acl != current->acl))) {
++ gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, cuid, shm_cprid, shmid);
++ return 0;
++ }
++
++ return 1;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_chdir.c linux-2.6.28.8/grsecurity/grsec_chdir.c
+--- linux-2.6.28.8/grsecurity/grsec_chdir.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_chdir.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,19 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++void
++gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
++ if ((grsec_enable_chdir && grsec_enable_group &&
++ in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
++ !grsec_enable_group)) {
++ gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
++ }
++#endif
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_chroot.c linux-2.6.28.8/grsecurity/grsec_chroot.c
+--- linux-2.6.28.8/grsecurity/grsec_chroot.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_chroot.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,336 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/mount.h>
++#include <linux/types.h>
++#include <linux/pid_namespace.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++int
++gr_handle_chroot_unix(const pid_t pid)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
++ struct pid *spid = NULL;
++
++ if (unlikely(!grsec_enable_chroot_unix))
++ return 1;
++
++ if (likely(!proc_is_chrooted(current)))
++ return 1;
++
++ read_lock(&tasklist_lock);
++
++ spid = find_vpid(pid);
++ if (spid) {
++ struct task_struct *p;
++ p = pid_task(spid, PIDTYPE_PID);
++ task_lock(p);
++ if (unlikely(!have_same_root(current, p))) {
++ task_unlock(p);
++ read_unlock(&tasklist_lock);
++ gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
++ return 0;
++ }
++ task_unlock(p);
++ }
++ read_unlock(&tasklist_lock);
++#endif
++ return 1;
++}
++
++int
++gr_handle_chroot_nice(void)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++ if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++ if (grsec_enable_chroot_nice && (niceval < task_nice(p))
++ && proc_is_chrooted(current)) {
++ gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, p->pid);
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_chroot_rawio(const struct inode *inode)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++ if (grsec_enable_chroot_caps && proc_is_chrooted(current) &&
++ inode && S_ISBLK(inode->i_mode) && !capable(CAP_SYS_RAWIO))
++ return 1;
++#endif
++ return 0;
++}
++
++int
++gr_pid_is_chrooted(struct task_struct *p)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
++ return 0;
++
++ task_lock(p);
++ if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
++ !have_same_root(current, p)) {
++ task_unlock(p);
++ return 1;
++ }
++ task_unlock(p);
++#endif
++ return 0;
++}
++
++EXPORT_SYMBOL(gr_pid_is_chrooted);
++
++#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
++int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
++{
++ struct dentry *dentry = (struct dentry *)u_dentry;
++ struct vfsmount *mnt = (struct vfsmount *)u_mnt;
++ struct dentry *realroot;
++ struct vfsmount *realrootmnt;
++ struct dentry *currentroot;
++ struct vfsmount *currentmnt;
++ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper;
++ int ret = 1;
++
++ read_lock(&reaper->fs->lock);
++ realrootmnt = mntget(reaper->fs->root.mnt);
++ realroot = dget(reaper->fs->root.dentry);
++ read_unlock(&reaper->fs->lock);
++
++ read_lock(¤t->fs->lock);
++ currentmnt = mntget(current->fs->root.mnt);
++ currentroot = dget(current->fs->root.dentry);
++ read_unlock(¤t->fs->lock);
++
++ spin_lock(&dcache_lock);
++ for (;;) {
++ if (unlikely((dentry == realroot && mnt == realrootmnt)
++ || (dentry == currentroot && mnt == currentmnt)))
++ break;
++ if (unlikely(dentry == mnt->mnt_root || IS_ROOT(dentry))) {
++ if (mnt->mnt_parent == mnt)
++ break;
++ dentry = mnt->mnt_mountpoint;
++ mnt = mnt->mnt_parent;
++ continue;
++ }
++ dentry = dentry->d_parent;
++ }
++ spin_unlock(&dcache_lock);
++
++ dput(currentroot);
++ mntput(currentmnt);
++
++ /* access is outside of chroot */
++ if (dentry == realroot && mnt == realrootmnt)
++ ret = 0;
++
++ dput(realroot);
++ mntput(realrootmnt);
++ return ret;
++}
++#endif
++
++int
++gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
++ if (!grsec_enable_chroot_fchdir)
++ return 1;
++
++ if (!proc_is_chrooted(current))
++ return 1;
++ else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
++ return 0;
++ }
++#endif
++ return 1;
++}
++
++int
++gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++ const time_t shm_createtime)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
++ struct pid *pid = NULL;
++ time_t starttime;
++
++ if (unlikely(!grsec_enable_chroot_shmat))
++ return 1;
++
++ if (likely(!proc_is_chrooted(current)))
++ return 1;
++
++ read_lock(&tasklist_lock);
++
++ pid = find_vpid(shm_cprid);
++ if (pid) {
++ struct task_struct *p;
++ p = pid_task(pid, PIDTYPE_PID);
++ task_lock(p);
++ starttime = p->start_time.tv_sec;
++ if (unlikely(!have_same_root(current, p) &&
++ time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime))) {
++ task_unlock(p);
++ read_unlock(&tasklist_lock);
++ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
++ return 0;
++ }
++ task_unlock(p);
++ } else {
++ pid = find_vpid(shm_lapid);
++ if (pid) {
++ struct task_struct *p;
++ p = pid_task(pid, PIDTYPE_PID);
++ task_lock(p);
++ if (unlikely(!have_same_root(current, p))) {
++ task_unlock(p);
++ read_unlock(&tasklist_lock);
++ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
++ return 0;
++ }
++ task_unlock(p);
++ }
++ }
++
++ read_unlock(&tasklist_lock);
++#endif
++ return 1;
++}
++
++void
++gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
++ if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
++ gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
++#endif
++ return;
++}
++
++int
++gr_handle_chroot_mknod(const struct dentry *dentry,
++ const struct vfsmount *mnt, const int mode)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
++ if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) &&
++ proc_is_chrooted(current)) {
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_chroot_mount(const struct dentry *dentry,
++ const struct vfsmount *mnt, const char *dev_name)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
++ if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
++ gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name, dentry, mnt);
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_chroot_pivot(void)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
++ if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
++ if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
++ !gr_is_outside_chroot(dentry, mnt)) {
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
++
++void
++gr_handle_chroot_caps(struct task_struct *task)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
++ kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
++ task->cap_permitted =
++ cap_drop(task->cap_permitted, chroot_caps);
++ task->cap_inheritable =
++ cap_drop(task->cap_inheritable, chroot_caps);
++ task->cap_effective =
++ cap_drop(task->cap_effective, chroot_caps);
++ }
++#endif
++ return;
++}
++
++int
++gr_handle_chroot_sysctl(const int op)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
++ if (grsec_enable_chroot_sysctl && proc_is_chrooted(current)
++ && (op & MAY_WRITE))
++ return -EACCES;
++#endif
++ return 0;
++}
++
++void
++gr_handle_chroot_chdir(struct path *path)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
++ if (grsec_enable_chroot_chdir)
++ set_fs_pwd(current->fs, path);
++#endif
++ return;
++}
++
++int
++gr_handle_chroot_chmod(const struct dentry *dentry,
++ const struct vfsmount *mnt, const int mode)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
++ if (grsec_enable_chroot_chmod &&
++ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
++ proc_is_chrooted(current)) {
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
++
++#ifdef CONFIG_SECURITY
++EXPORT_SYMBOL(gr_handle_chroot_caps);
++#endif
+diff -urNp linux-2.6.28.8/grsecurity/grsec_disabled.c linux-2.6.28.8/grsecurity/grsec_disabled.c
+--- linux-2.6.28.8/grsecurity/grsec_disabled.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_disabled.c 2009-03-07 14:23:04.000000000 -0500
+@@ -0,0 +1,418 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/kdev_t.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/ip.h>
++#include <linux/skbuff.h>
++#include <linux/sysctl.h>
++
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++void
++pax_set_initial_flags(struct linux_binprm *bprm)
++{
++ return;
++}
++#endif
++
++#ifdef CONFIG_SYSCTL
++__u32
++gr_handle_sysctl(const struct ctl_table * table, const int op)
++{
++ return 0;
++}
++#endif
++
++int
++gr_acl_is_enabled(void)
++{
++ return 0;
++}
++
++int
++gr_handle_rawio(const struct inode *inode)
++{
++ return 0;
++}
++
++void
++gr_acl_handle_psacct(struct task_struct *task, const long code)
++{
++ return;
++}
++
++int
++gr_handle_ptrace(struct task_struct *task, const long request)
++{
++ return 0;
++}
++
++int
++gr_handle_proc_ptrace(struct task_struct *task)
++{
++ return 0;
++}
++
++void
++gr_learn_resource(const struct task_struct *task,
++ const int res, const unsigned long wanted, const int gt)
++{
++ return;
++}
++
++int
++gr_set_acls(const int type)
++{
++ return 0;
++}
++
++int
++gr_check_hidden_task(const struct task_struct *tsk)
++{
++ return 0;
++}
++
++int
++gr_check_protected_task(const struct task_struct *task)
++{
++ return 0;
++}
++
++void
++gr_copy_label(struct task_struct *tsk)
++{
++ return;
++}
++
++void
++gr_set_pax_flags(struct task_struct *task)
++{
++ return;
++}
++
++int
++gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return 0;
++}
++
++void
++gr_handle_delete(const ino_t ino, const dev_t dev)
++{
++ return;
++}
++
++void
++gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++ return;
++}
++
++void
++gr_handle_crash(struct task_struct *task, const int sig)
++{
++ return;
++}
++
++int
++gr_check_crash_exec(const struct file *filp)
++{
++ return 0;
++}
++
++int
++gr_check_crash_uid(const uid_t uid)
++{
++ return 0;
++}
++
++void
++gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
++ struct dentry *old_dentry,
++ struct dentry *new_dentry,
++ struct vfsmount *mnt, const __u8 replace)
++{
++ return;
++}
++
++int
++gr_search_socket(const int family, const int type, const int protocol)
++{
++ return 1;
++}
++
++int
++gr_search_connectbind(const int mode, const struct socket *sock,
++ const struct sockaddr_in *addr)
++{
++ return 0;
++}
++
++int
++gr_task_is_capable(struct task_struct *task, const int cap)
++{
++ return 1;
++}
++
++int
++gr_is_capable_nolog(const int cap)
++{
++ return 1;
++}
++
++void
++gr_handle_alertkill(struct task_struct *task)
++{
++ return;
++}
++
++__u32
++gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_hidden_file(const struct dentry * dentry,
++ const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
++ const int fmode)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++int
++gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
++ unsigned int *vm_flags)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_truncate(const struct dentry * dentry,
++ const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_access(const struct dentry * dentry,
++ const struct vfsmount * mnt, const int fmode)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_fchmod(const struct dentry * dentry, const struct vfsmount * mnt,
++ mode_t mode)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
++ mode_t mode)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++void
++grsecurity_init(void)
++{
++ return;
++}
++
++__u32
++gr_acl_handle_mknod(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt,
++ const int mode)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_mkdir(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_symlink(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt, const char *from)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_link(const struct dentry * new_dentry,
++ const struct dentry * parent_dentry,
++ const struct vfsmount * parent_mnt,
++ const struct dentry * old_dentry,
++ const struct vfsmount * old_mnt, const char *to)
++{
++ return 1;
++}
++
++int
++gr_acl_handle_rename(const struct dentry *new_dentry,
++ const struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt,
++ const struct dentry *old_dentry,
++ const struct inode *old_parent_inode,
++ const struct vfsmount *old_mnt, const char *newname)
++{
++ return 0;
++}
++
++int
++gr_acl_handle_filldir(const struct file *file, const char *name,
++ const int namelen, const ino_t ino)
++{
++ return 1;
++}
++
++int
++gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++ const time_t shm_createtime, const uid_t cuid, const int shmid)
++{
++ return 1;
++}
++
++int
++gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
++{
++ return 0;
++}
++
++int
++gr_search_accept(const struct socket *sock)
++{
++ return 0;
++}
++
++int
++gr_search_listen(const struct socket *sock)
++{
++ return 0;
++}
++
++int
++gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
++{
++ return 0;
++}
++
++__u32
++gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++ return 1;
++}
++
++__u32
++gr_acl_handle_creat(const struct dentry * dentry,
++ const struct dentry * p_dentry,
++ const struct vfsmount * p_mnt, const int fmode,
++ const int imode)
++{
++ return 1;
++}
++
++void
++gr_acl_handle_exit(void)
++{
++ return;
++}
++
++int
++gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
++{
++ return 1;
++}
++
++void
++gr_set_role_label(const uid_t uid, const gid_t gid)
++{
++ return;
++}
++
++int
++gr_acl_handle_procpidmem(const struct task_struct *task)
++{
++ return 0;
++}
++
++int
++gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
++{
++ return 0;
++}
++
++int
++gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
++{
++ return 0;
++}
++
++void
++gr_set_kernel_label(struct task_struct *task)
++{
++ return;
++}
++
++int
++gr_check_user_change(int real, int effective, int fs)
++{
++ return 0;
++}
++
++int
++gr_check_group_change(int real, int effective, int fs)
++{
++ return 0;
++}
++
++
++EXPORT_SYMBOL(gr_task_is_capable);
++EXPORT_SYMBOL(gr_is_capable_nolog);
++EXPORT_SYMBOL(gr_learn_resource);
++EXPORT_SYMBOL(gr_set_kernel_label);
++#ifdef CONFIG_SECURITY
++EXPORT_SYMBOL(gr_check_user_change);
++EXPORT_SYMBOL(gr_check_group_change);
++#endif
+diff -urNp linux-2.6.28.8/grsecurity/grsec_exec.c linux-2.6.28.8/grsecurity/grsec_exec.c
+--- linux-2.6.28.8/grsecurity/grsec_exec.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_exec.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,88 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/binfmts.h>
++#include <linux/smp_lock.h>
++#include <linux/fs.h>
++#include <linux/types.h>
++#include <linux/grdefs.h>
++#include <linux/grinternal.h>
++#include <linux/capability.h>
++
++#include <asm/uaccess.h>
++
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++static char gr_exec_arg_buf[132];
++static DECLARE_MUTEX(gr_exec_arg_sem);
++#endif
++
++int
++gr_handle_nproc(void)
++{
++#ifdef CONFIG_GRKERNSEC_EXECVE
++ if (grsec_enable_execve && current->user &&
++ (atomic_read(¤t->user->processes) >
++ current->signal->rlim[RLIMIT_NPROC].rlim_cur) &&
++ !capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE)) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_NPROC_MSG);
++ return -EAGAIN;
++ }
++#endif
++ return 0;
++}
++
++void
++gr_handle_exec_args(struct linux_binprm *bprm, const char __user *__user *argv)
++{
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++ char *grarg = gr_exec_arg_buf;
++ unsigned int i, x, execlen = 0;
++ char c;
++
++ if (!((grsec_enable_execlog && grsec_enable_group &&
++ in_group_p(grsec_audit_gid))
++ || (grsec_enable_execlog && !grsec_enable_group)))
++ return;
++
++ down(&gr_exec_arg_sem);
++ memset(grarg, 0, sizeof(gr_exec_arg_buf));
++
++ if (unlikely(argv == NULL))
++ goto log;
++
++ for (i = 0; i < bprm->argc && execlen < 128; i++) {
++ const char __user *p;
++ unsigned int len;
++
++ if (copy_from_user(&p, argv + i, sizeof(p)))
++ goto log;
++ if (!p)
++ goto log;
++ len = strnlen_user(p, 128 - execlen);
++ if (len > 128 - execlen)
++ len = 128 - execlen;
++ else if (len > 0)
++ len--;
++ if (copy_from_user(grarg + execlen, p, len))
++ goto log;
++
++ /* rewrite unprintable characters */
++ for (x = 0; x < len; x++) {
++ c = *(grarg + execlen + x);
++ if (c < 32 || c > 126)
++ *(grarg + execlen + x) = ' ';
++ }
++
++ execlen += len;
++ *(grarg + execlen) = ' ';
++ *(grarg + execlen + 1) = '\0';
++ execlen++;
++ }
++
++ log:
++ gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
++ bprm->file->f_path.mnt, grarg);
++ up(&gr_exec_arg_sem);
++#endif
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_fifo.c linux-2.6.28.8/grsecurity/grsec_fifo.c
+--- linux-2.6.28.8/grsecurity/grsec_fifo.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_fifo.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,22 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/grinternal.h>
++
++int
++gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
++ const struct dentry *dir, const int flag, const int acc_mode)
++{
++#ifdef CONFIG_GRKERNSEC_FIFO
++ if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
++ !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
++ (dentry->d_inode->i_uid != dir->d_inode->i_uid) &&
++ (current->fsuid != dentry->d_inode->i_uid)) {
++ if (!generic_permission(dentry->d_inode, acc_mode, NULL))
++ gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, dentry->d_inode->i_uid, dentry->d_inode->i_gid);
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_fork.c linux-2.6.28.8/grsecurity/grsec_fork.c
+--- linux-2.6.28.8/grsecurity/grsec_fork.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_fork.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,15 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/errno.h>
++
++void
++gr_log_forkfail(const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_FORKFAIL
++ if (grsec_enable_forkfail && retval != -ERESTARTNOINTR)
++ gr_log_int(GR_DONT_AUDIT, GR_FAILFORK_MSG, retval);
++#endif
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_init.c linux-2.6.28.8/grsecurity/grsec_init.c
+--- linux-2.6.28.8/grsecurity/grsec_init.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_init.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,230 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/smp_lock.h>
++#include <linux/gracl.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/percpu.h>
++
++int grsec_enable_link;
++int grsec_enable_dmesg;
++int grsec_enable_fifo;
++int grsec_enable_execve;
++int grsec_enable_execlog;
++int grsec_enable_signal;
++int grsec_enable_forkfail;
++int grsec_enable_time;
++int grsec_enable_audit_textrel;
++int grsec_enable_group;
++int grsec_audit_gid;
++int grsec_enable_chdir;
++int grsec_enable_audit_ipc;
++int grsec_enable_mount;
++int grsec_enable_chroot_findtask;
++int grsec_enable_chroot_mount;
++int grsec_enable_chroot_shmat;
++int grsec_enable_chroot_fchdir;
++int grsec_enable_chroot_double;
++int grsec_enable_chroot_pivot;
++int grsec_enable_chroot_chdir;
++int grsec_enable_chroot_chmod;
++int grsec_enable_chroot_mknod;
++int grsec_enable_chroot_nice;
++int grsec_enable_chroot_execlog;
++int grsec_enable_chroot_caps;
++int grsec_enable_chroot_sysctl;
++int grsec_enable_chroot_unix;
++int grsec_enable_tpe;
++int grsec_tpe_gid;
++int grsec_enable_tpe_all;
++int grsec_enable_socket_all;
++int grsec_socket_all_gid;
++int grsec_enable_socket_client;
++int grsec_socket_client_gid;
++int grsec_enable_socket_server;
++int grsec_socket_server_gid;
++int grsec_resource_logging;
++int grsec_lock;
++
++DEFINE_SPINLOCK(grsec_alert_lock);
++unsigned long grsec_alert_wtime = 0;
++unsigned long grsec_alert_fyet = 0;
++
++DEFINE_SPINLOCK(grsec_audit_lock);
++
++DEFINE_RWLOCK(grsec_exec_file_lock);
++
++char *gr_shared_page[4];
++
++char *gr_alert_log_fmt;
++char *gr_audit_log_fmt;
++char *gr_alert_log_buf;
++char *gr_audit_log_buf;
++
++extern struct gr_arg *gr_usermode;
++extern unsigned char *gr_system_salt;
++extern unsigned char *gr_system_sum;
++
++void
++grsecurity_init(void)
++{
++ int j;
++ /* create the per-cpu shared pages */
++
++#ifdef CONFIG_X86
++ memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
++#endif
++
++ for (j = 0; j < 4; j++) {
++ gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE);
++ if (gr_shared_page[j] == NULL) {
++ panic("Unable to allocate grsecurity shared page");
++ return;
++ }
++ }
++
++ /* allocate log buffers */
++ gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
++ if (!gr_alert_log_fmt) {
++ panic("Unable to allocate grsecurity alert log format buffer");
++ return;
++ }
++ gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
++ if (!gr_audit_log_fmt) {
++ panic("Unable to allocate grsecurity audit log format buffer");
++ return;
++ }
++ gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
++ if (!gr_alert_log_buf) {
++ panic("Unable to allocate grsecurity alert log buffer");
++ return;
++ }
++ gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
++ if (!gr_audit_log_buf) {
++ panic("Unable to allocate grsecurity audit log buffer");
++ return;
++ }
++
++ /* allocate memory for authentication structure */
++ gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
++ gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
++ gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
++
++ if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
++ panic("Unable to allocate grsecurity authentication structure");
++ return;
++ }
++
++#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
++#ifndef CONFIG_GRKERNSEC_SYSCTL
++ grsec_lock = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
++ grsec_enable_audit_textrel = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
++ grsec_enable_group = 1;
++ grsec_audit_gid = CONFIG_GRKERNSEC_AUDIT_GID;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
++ grsec_enable_chdir = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ grsec_enable_audit_ipc = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++ grsec_enable_mount = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_LINK
++ grsec_enable_link = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_DMESG
++ grsec_enable_dmesg = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_FIFO
++ grsec_enable_fifo = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_EXECVE
++ grsec_enable_execve = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++ grsec_enable_execlog = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_SIGNAL
++ grsec_enable_signal = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_FORKFAIL
++ grsec_enable_forkfail = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_TIME
++ grsec_enable_time = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_RESLOG
++ grsec_resource_logging = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++ grsec_enable_chroot_findtask = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
++ grsec_enable_chroot_unix = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
++ grsec_enable_chroot_mount = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
++ grsec_enable_chroot_fchdir = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
++ grsec_enable_chroot_shmat = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
++ grsec_enable_chroot_double = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
++ grsec_enable_chroot_pivot = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
++ grsec_enable_chroot_chdir = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
++ grsec_enable_chroot_chmod = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
++ grsec_enable_chroot_mknod = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++ grsec_enable_chroot_nice = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
++ grsec_enable_chroot_execlog = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++ grsec_enable_chroot_caps = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
++ grsec_enable_chroot_sysctl = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_TPE
++ grsec_enable_tpe = 1;
++ grsec_tpe_gid = CONFIG_GRKERNSEC_TPE_GID;
++#ifdef CONFIG_GRKERNSEC_TPE_ALL
++ grsec_enable_tpe_all = 1;
++#endif
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
++ grsec_enable_socket_all = 1;
++ grsec_socket_all_gid = CONFIG_GRKERNSEC_SOCKET_ALL_GID;
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
++ grsec_enable_socket_client = 1;
++ grsec_socket_client_gid = CONFIG_GRKERNSEC_SOCKET_CLIENT_GID;
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++ grsec_enable_socket_server = 1;
++ grsec_socket_server_gid = CONFIG_GRKERNSEC_SOCKET_SERVER_GID;
++#endif
++#endif
++
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_ipc.c linux-2.6.28.8/grsecurity/grsec_ipc.c
+--- linux-2.6.28.8/grsecurity/grsec_ipc.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_ipc.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,81 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/types.h>
++#include <linux/ipc.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++void
++gr_log_msgget(const int ret, const int msgflg)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ if (((grsec_enable_group && in_group_p(grsec_audit_gid) &&
++ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc &&
++ !grsec_enable_group)) && (ret >= 0)
++ && (msgflg & IPC_CREAT))
++ gr_log_noargs(GR_DO_AUDIT, GR_MSGQ_AUDIT_MSG);
++#endif
++ return;
++}
++
++void
++gr_log_msgrm(const uid_t uid, const uid_t cuid)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ if ((grsec_enable_group && in_group_p(grsec_audit_gid) &&
++ grsec_enable_audit_ipc) ||
++ (grsec_enable_audit_ipc && !grsec_enable_group))
++ gr_log_int_int(GR_DO_AUDIT, GR_MSGQR_AUDIT_MSG, uid, cuid);
++#endif
++ return;
++}
++
++void
++gr_log_semget(const int err, const int semflg)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ if (((grsec_enable_group && in_group_p(grsec_audit_gid) &&
++ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc &&
++ !grsec_enable_group)) && (err >= 0)
++ && (semflg & IPC_CREAT))
++ gr_log_noargs(GR_DO_AUDIT, GR_SEM_AUDIT_MSG);
++#endif
++ return;
++}
++
++void
++gr_log_semrm(const uid_t uid, const uid_t cuid)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ if ((grsec_enable_group && in_group_p(grsec_audit_gid) &&
++ grsec_enable_audit_ipc) ||
++ (grsec_enable_audit_ipc && !grsec_enable_group))
++ gr_log_int_int(GR_DO_AUDIT, GR_SEMR_AUDIT_MSG, uid, cuid);
++#endif
++ return;
++}
++
++void
++gr_log_shmget(const int err, const int shmflg, const size_t size)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ if (((grsec_enable_group && in_group_p(grsec_audit_gid) &&
++ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc &&
++ !grsec_enable_group)) && (err >= 0)
++ && (shmflg & IPC_CREAT))
++ gr_log_int(GR_DO_AUDIT, GR_SHM_AUDIT_MSG, size);
++#endif
++ return;
++}
++
++void
++gr_log_shmrm(const uid_t uid, const uid_t cuid)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ if ((grsec_enable_group && in_group_p(grsec_audit_gid) &&
++ grsec_enable_audit_ipc) ||
++ (grsec_enable_audit_ipc && !grsec_enable_group))
++ gr_log_int_int(GR_DO_AUDIT, GR_SHMR_AUDIT_MSG, uid, cuid);
++#endif
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_link.c linux-2.6.28.8/grsecurity/grsec_link.c
+--- linux-2.6.28.8/grsecurity/grsec_link.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_link.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,39 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/grinternal.h>
++
++int
++gr_handle_follow_link(const struct inode *parent,
++ const struct inode *inode,
++ const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_LINK
++ if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
++ (parent->i_mode & S_ISVTX) && (parent->i_uid != inode->i_uid) &&
++ (parent->i_mode & S_IWOTH) && (current->fsuid != inode->i_uid)) {
++ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_hardlink(const struct dentry *dentry,
++ const struct vfsmount *mnt,
++ struct inode *inode, const int mode, const char *to)
++{
++#ifdef CONFIG_GRKERNSEC_LINK
++ if (grsec_enable_link && current->fsuid != inode->i_uid &&
++ (!S_ISREG(mode) || (mode & S_ISUID) ||
++ ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) ||
++ (generic_permission(inode, MAY_READ | MAY_WRITE, NULL))) &&
++ !capable(CAP_FOWNER) && current->uid) {
++ gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to);
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_log.c linux-2.6.28.8/grsecurity/grsec_log.c
+--- linux-2.6.28.8/grsecurity/grsec_log.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_log.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,269 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/tty.h>
++#include <linux/fs.h>
++#include <linux/grinternal.h>
++
++#define BEGIN_LOCKS(x) \
++ read_lock(&tasklist_lock); \
++ read_lock(&grsec_exec_file_lock); \
++ if (x != GR_DO_AUDIT) \
++ spin_lock(&grsec_alert_lock); \
++ else \
++ spin_lock(&grsec_audit_lock)
++
++#define END_LOCKS(x) \
++ if (x != GR_DO_AUDIT) \
++ spin_unlock(&grsec_alert_lock); \
++ else \
++ spin_unlock(&grsec_audit_lock); \
++ read_unlock(&grsec_exec_file_lock); \
++ read_unlock(&tasklist_lock); \
++ if (x == GR_DONT_AUDIT) \
++ gr_handle_alertkill(current)
++
++enum {
++ FLOODING,
++ NO_FLOODING
++};
++
++extern char *gr_alert_log_fmt;
++extern char *gr_audit_log_fmt;
++extern char *gr_alert_log_buf;
++extern char *gr_audit_log_buf;
++
++static int gr_log_start(int audit)
++{
++ char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
++ char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++
++ if (audit == GR_DO_AUDIT)
++ goto set_fmt;
++
++ if (!grsec_alert_wtime || jiffies - grsec_alert_wtime > CONFIG_GRKERNSEC_FLOODTIME * HZ) {
++ grsec_alert_wtime = jiffies;
++ grsec_alert_fyet = 0;
++ } else if ((jiffies - grsec_alert_wtime < CONFIG_GRKERNSEC_FLOODTIME * HZ) && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
++ grsec_alert_fyet++;
++ } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
++ grsec_alert_wtime = jiffies;
++ grsec_alert_fyet++;
++ printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
++ return FLOODING;
++ } else return FLOODING;
++
++set_fmt:
++ memset(buf, 0, PAGE_SIZE);
++ if (current->signal->curr_ip && gr_acl_is_enabled()) {
++ sprintf(fmt, "%s%s", loglevel, "grsec: From %u.%u.%u.%u: (%.64s:%c:%.950s) ");
++ snprintf(buf, PAGE_SIZE - 1, fmt, NIPQUAD(current->signal->curr_ip), current->role->rolename, gr_roletype_to_char(), current->acl->filename);
++ } else if (current->signal->curr_ip) {
++ sprintf(fmt, "%s%s", loglevel, "grsec: From %u.%u.%u.%u: ");
++ snprintf(buf, PAGE_SIZE - 1, fmt, NIPQUAD(current->signal->curr_ip));
++ } else if (gr_acl_is_enabled()) {
++ sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
++ snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
++ } else {
++ sprintf(fmt, "%s%s", loglevel, "grsec: ");
++ strcpy(buf, fmt);
++ }
++
++ return NO_FLOODING;
++}
++
++static void gr_log_middle(int audit, const char *msg, va_list ap)
++{
++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++ unsigned int len = strlen(buf);
++
++ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
++
++ return;
++}
++
++static void gr_log_middle_varargs(int audit, const char *msg, ...)
++{
++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++ unsigned int len = strlen(buf);
++ va_list ap;
++
++ va_start(ap, msg);
++ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
++ va_end(ap);
++
++ return;
++}
++
++static void gr_log_end(int audit)
++{
++ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++ unsigned int len = strlen(buf);
++
++ snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, DEFAULTSECARGS(current));
++ printk("%s\n", buf);
++
++ return;
++}
++
++void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
++{
++ int logtype;
++ char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
++ char *str1, *str2, *str3;
++ int num1, num2;
++ unsigned long ulong1, ulong2;
++ struct dentry *dentry;
++ struct vfsmount *mnt;
++ struct file *file;
++ struct task_struct *task;
++ va_list ap;
++
++ BEGIN_LOCKS(audit);
++ logtype = gr_log_start(audit);
++ if (logtype == FLOODING) {
++ END_LOCKS(audit);
++ return;
++ }
++ va_start(ap, argtypes);
++ switch (argtypes) {
++ case GR_TTYSNIFF:
++ task = va_arg(ap, struct task_struct *);
++ gr_log_middle_varargs(audit, msg, NIPQUAD(task->signal->curr_ip), gr_task_fullpath0(task), task->comm, task->pid, gr_parent_task_fullpath0(task), task->parent->comm, task->parent->pid);
++ break;
++ case GR_SYSCTL_HIDDEN:
++ str1 = va_arg(ap, char *);
++ gr_log_middle_varargs(audit, msg, result, str1);
++ break;
++ case GR_RBAC:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
++ break;
++ case GR_RBAC_STR:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ str1 = va_arg(ap, char *);
++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
++ break;
++ case GR_STR_RBAC:
++ str1 = va_arg(ap, char *);
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
++ break;
++ case GR_RBAC_MODE2:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ str1 = va_arg(ap, char *);
++ str2 = va_arg(ap, char *);
++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
++ break;
++ case GR_RBAC_MODE3:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ str1 = va_arg(ap, char *);
++ str2 = va_arg(ap, char *);
++ str3 = va_arg(ap, char *);
++ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
++ break;
++ case GR_FILENAME:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
++ break;
++ case GR_STR_FILENAME:
++ str1 = va_arg(ap, char *);
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
++ break;
++ case GR_FILENAME_STR:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ str1 = va_arg(ap, char *);
++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
++ break;
++ case GR_FILENAME_TWO_INT:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ num1 = va_arg(ap, int);
++ num2 = va_arg(ap, int);
++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
++ break;
++ case GR_FILENAME_TWO_INT_STR:
++ dentry = va_arg(ap, struct dentry *);
++ mnt = va_arg(ap, struct vfsmount *);
++ num1 = va_arg(ap, int);
++ num2 = va_arg(ap, int);
++ str1 = va_arg(ap, char *);
++ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
++ break;
++ case GR_TEXTREL:
++ file = va_arg(ap, struct file *);
++ ulong1 = va_arg(ap, unsigned long);
++ ulong2 = va_arg(ap, unsigned long);
++ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
++ break;
++ case GR_PTRACE:
++ task = va_arg(ap, struct task_struct *);
++ gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task->pid);
++ break;
++ case GR_RESOURCE:
++ task = va_arg(ap, struct task_struct *);
++ ulong1 = va_arg(ap, unsigned long);
++ str1 = va_arg(ap, char *);
++ ulong2 = va_arg(ap, unsigned long);
++ gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
++ break;
++ case GR_CAP:
++ task = va_arg(ap, struct task_struct *);
++ str1 = va_arg(ap, char *);
++ gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
++ break;
++ case GR_SIG:
++ task = va_arg(ap, struct task_struct *);
++ num1 = va_arg(ap, int);
++ gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath0(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
++ break;
++ case GR_CRASH1:
++ task = va_arg(ap, struct task_struct *);
++ ulong1 = va_arg(ap, unsigned long);
++ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid, task->uid, ulong1);
++ break;
++ case GR_CRASH2:
++ task = va_arg(ap, struct task_struct *);
++ ulong1 = va_arg(ap, unsigned long);
++ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid, ulong1);
++ break;
++ case GR_PSACCT:
++ {
++ unsigned int wday, cday;
++ __u8 whr, chr;
++ __u8 wmin, cmin;
++ __u8 wsec, csec;
++ char cur_tty[64] = { 0 };
++ char parent_tty[64] = { 0 };
++
++ task = va_arg(ap, struct task_struct *);
++ wday = va_arg(ap, unsigned int);
++ cday = va_arg(ap, unsigned int);
++ whr = va_arg(ap, int);
++ chr = va_arg(ap, int);
++ wmin = va_arg(ap, int);
++ cmin = va_arg(ap, int);
++ wsec = va_arg(ap, int);
++ csec = va_arg(ap, int);
++ ulong1 = va_arg(ap, unsigned long);
++
++ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, NIPQUAD(task->signal->curr_ip), tty_name(task->signal->tty, cur_tty), task->uid, task->euid, task->gid, task->egid, wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, NIPQUAD(task->parent->signal->curr_ip), tty_name(task->parent->signal->tty, parent_tty), task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid);
++ }
++ break;
++ default:
++ gr_log_middle(audit, msg, ap);
++ }
++ va_end(ap);
++ gr_log_end(audit);
++ END_LOCKS(audit);
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_mem.c linux-2.6.28.8/grsecurity/grsec_mem.c
+--- linux-2.6.28.8/grsecurity/grsec_mem.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_mem.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,71 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/mman.h>
++#include <linux/grinternal.h>
++
++void
++gr_handle_ioperm(void)
++{
++ gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
++ return;
++}
++
++void
++gr_handle_iopl(void)
++{
++ gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
++ return;
++}
++
++void
++gr_handle_mem_write(void)
++{
++ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_WRITE_MSG);
++ return;
++}
++
++void
++gr_handle_kmem_write(void)
++{
++ gr_log_noargs(GR_DONT_AUDIT, GR_KMEM_MSG);
++ return;
++}
++
++void
++gr_handle_open_port(void)
++{
++ gr_log_noargs(GR_DONT_AUDIT, GR_PORT_OPEN_MSG);
++ return;
++}
++
++int
++gr_handle_mem_mmap(const unsigned long offset, struct vm_area_struct *vma)
++{
++ unsigned long start, end;
++
++ start = offset;
++ end = start + vma->vm_end - vma->vm_start;
++
++ if (start > end) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_MMAP_MSG);
++ return -EPERM;
++ }
++
++ /* allowed ranges : ISA I/O BIOS */
++ if ((start >= __pa(high_memory))
++#ifdef CONFIG_X86
++ || (start >= 0x000a0000 && end <= 0x00100000)
++ || (start >= 0x00000000 && end <= 0x00001000)
++#endif
++ )
++ return 0;
++
++ if (vma->vm_flags & VM_WRITE) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_MMAP_MSG);
++ return -EPERM;
++ } else
++ vma->vm_flags &= ~VM_MAYWRITE;
++
++ return 0;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_mount.c linux-2.6.28.8/grsecurity/grsec_mount.c
+--- linux-2.6.28.8/grsecurity/grsec_mount.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_mount.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,34 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++void
++gr_log_remount(const char *devname, const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++ if (grsec_enable_mount && (retval >= 0))
++ gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
++#endif
++ return;
++}
++
++void
++gr_log_unmount(const char *devname, const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++ if (grsec_enable_mount && (retval >= 0))
++ gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
++#endif
++ return;
++}
++
++void
++gr_log_mount(const char *from, const char *to, const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++ if (grsec_enable_mount && (retval >= 0))
++ gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from, to);
++#endif
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_sig.c linux-2.6.28.8/grsecurity/grsec_sig.c
+--- linux-2.6.28.8/grsecurity/grsec_sig.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_sig.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,58 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/delay.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++void
++gr_log_signal(const int sig, const struct task_struct *t)
++{
++#ifdef CONFIG_GRKERNSEC_SIGNAL
++ if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
++ (sig == SIGABRT) || (sig == SIGBUS))) {
++ if (t->pid == current->pid) {
++ gr_log_int(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, sig);
++ } else {
++ gr_log_sig(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
++ }
++ }
++#endif
++ return;
++}
++
++int
++gr_handle_signal(const struct task_struct *p, const int sig)
++{
++#ifdef CONFIG_GRKERNSEC
++ if (current->pid > 1 && gr_check_protected_task(p)) {
++ gr_log_sig(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
++ return -EPERM;
++ } else if (gr_pid_is_chrooted((struct task_struct *)p)) {
++ return -EPERM;
++ }
++#endif
++ return 0;
++}
++
++void gr_handle_brute_attach(struct task_struct *p)
++{
++#ifdef CONFIG_GRKERNSEC_BRUTE
++ read_lock(&tasklist_lock);
++ read_lock(&grsec_exec_file_lock);
++ if (p->parent && p->parent->exec_file == p->exec_file)
++ p->parent->brute = 1;
++ read_unlock(&grsec_exec_file_lock);
++ read_unlock(&tasklist_lock);
++#endif
++ return;
++}
++
++void gr_handle_brute_check(void)
++{
++#ifdef CONFIG_GRKERNSEC_BRUTE
++ if (current->brute)
++ msleep(30 * 1000);
++#endif
++ return;
++}
++
+diff -urNp linux-2.6.28.8/grsecurity/grsec_sock.c linux-2.6.28.8/grsecurity/grsec_sock.c
+--- linux-2.6.28.8/grsecurity/grsec_sock.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_sock.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,274 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/ip.h>
++#include <net/sock.h>
++#include <net/inet_sock.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/gracl.h>
++
++#if defined(CONFIG_IP_NF_MATCH_STEALTH_MODULE)
++extern struct sock *udp_v4_lookup(u32 saddr, u16 sport, u32 daddr, u16 dport, int dif);
++EXPORT_SYMBOL(udp_v4_lookup);
++#endif
++
++kernel_cap_t gr_cap_rtnetlink(struct sock *sock);
++EXPORT_SYMBOL(gr_cap_rtnetlink);
++
++extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
++extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
++
++EXPORT_SYMBOL(gr_search_udp_recvmsg);
++EXPORT_SYMBOL(gr_search_udp_sendmsg);
++
++#ifdef CONFIG_UNIX_MODULE
++EXPORT_SYMBOL(gr_acl_handle_unix);
++EXPORT_SYMBOL(gr_acl_handle_mknod);
++EXPORT_SYMBOL(gr_handle_chroot_unix);
++EXPORT_SYMBOL(gr_handle_create);
++#endif
++
++#ifdef CONFIG_GRKERNSEC
++#define gr_conn_table_size 32749
++struct conn_table_entry {
++ struct conn_table_entry *next;
++ struct signal_struct *sig;
++};
++
++struct conn_table_entry *gr_conn_table[gr_conn_table_size];
++DEFINE_SPINLOCK(gr_conn_table_lock);
++
++extern const char * gr_socktype_to_name(unsigned char type);
++extern const char * gr_proto_to_name(unsigned char proto);
++
++static __inline__ int
++conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
++{
++ return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
++}
++
++static __inline__ int
++conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr,
++ __u16 sport, __u16 dport)
++{
++ if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
++ sig->gr_sport == sport && sig->gr_dport == dport))
++ return 1;
++ else
++ return 0;
++}
++
++static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
++{
++ struct conn_table_entry **match;
++ unsigned int index;
++
++ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
++ sig->gr_sport, sig->gr_dport,
++ gr_conn_table_size);
++
++ newent->sig = sig;
++
++ match = &gr_conn_table[index];
++ newent->next = *match;
++ *match = newent;
++
++ return;
++}
++
++static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
++{
++ struct conn_table_entry *match, *last = NULL;
++ unsigned int index;
++
++ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
++ sig->gr_sport, sig->gr_dport,
++ gr_conn_table_size);
++
++ match = gr_conn_table[index];
++ while (match && !conn_match(match->sig,
++ sig->gr_saddr, sig->gr_daddr, sig->gr_sport,
++ sig->gr_dport)) {
++ last = match;
++ match = match->next;
++ }
++
++ if (match) {
++ if (last)
++ last->next = match->next;
++ else
++ gr_conn_table[index] = NULL;
++ kfree(match);
++ }
++
++ return;
++}
++
++static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
++ __u16 sport, __u16 dport)
++{
++ struct conn_table_entry *match;
++ unsigned int index;
++
++ index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
++
++ match = gr_conn_table[index];
++ while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
++ match = match->next;
++
++ if (match)
++ return match->sig;
++ else
++ return NULL;
++}
++
++#endif
++
++void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet)
++{
++#ifdef CONFIG_GRKERNSEC
++ struct signal_struct *sig = task->signal;
++ struct conn_table_entry *newent;
++
++ newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
++ if (newent == NULL)
++ return;
++ /* no bh lock needed since we are called with bh disabled */
++ spin_lock(&gr_conn_table_lock);
++ gr_del_task_from_ip_table_nolock(sig);
++ sig->gr_saddr = inet->rcv_saddr;
++ sig->gr_daddr = inet->daddr;
++ sig->gr_sport = inet->sport;
++ sig->gr_dport = inet->dport;
++ gr_add_to_task_ip_table_nolock(sig, newent);
++ spin_unlock(&gr_conn_table_lock);
++#endif
++ return;
++}
++
++void gr_del_task_from_ip_table(struct task_struct *task)
++{
++#ifdef CONFIG_GRKERNSEC
++ spin_lock_bh(&gr_conn_table_lock);
++ gr_del_task_from_ip_table_nolock(task->signal);
++ spin_unlock_bh(&gr_conn_table_lock);
++#endif
++ return;
++}
++
++void
++gr_attach_curr_ip(const struct sock *sk)
++{
++#ifdef CONFIG_GRKERNSEC
++ struct signal_struct *p, *set;
++ const struct inet_sock *inet = inet_sk(sk);
++
++ if (unlikely(sk->sk_protocol != IPPROTO_TCP))
++ return;
++
++ set = current->signal;
++
++ spin_lock_bh(&gr_conn_table_lock);
++ p = gr_lookup_task_ip_table(inet->daddr, inet->rcv_saddr,
++ inet->dport, inet->sport);
++ if (unlikely(p != NULL)) {
++ set->curr_ip = p->curr_ip;
++ set->used_accept = 1;
++ gr_del_task_from_ip_table_nolock(p);
++ spin_unlock_bh(&gr_conn_table_lock);
++ return;
++ }
++ spin_unlock_bh(&gr_conn_table_lock);
++
++ set->curr_ip = inet->daddr;
++ set->used_accept = 1;
++#endif
++ return;
++}
++
++int
++gr_handle_sock_all(const int family, const int type, const int protocol)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
++ if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
++ (family != AF_UNIX) && (family != AF_LOCAL)) {
++ gr_log_int_str2(GR_DONT_AUDIT, GR_SOCK2_MSG, family, gr_socktype_to_name(type), gr_proto_to_name(protocol));
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_sock_server(const struct sockaddr *sck)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++ if (grsec_enable_socket_server &&
++ in_group_p(grsec_socket_server_gid) &&
++ sck && (sck->sa_family != AF_UNIX) &&
++ (sck->sa_family != AF_LOCAL)) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_sock_server_other(const struct sock *sck)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++ if (grsec_enable_socket_server &&
++ in_group_p(grsec_socket_server_gid) &&
++ sck && (sck->sk_family != AF_UNIX) &&
++ (sck->sk_family != AF_LOCAL)) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
++
++int
++gr_handle_sock_client(const struct sockaddr *sck)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
++ if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
++ sck && (sck->sa_family != AF_UNIX) &&
++ (sck->sa_family != AF_LOCAL)) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
++
++kernel_cap_t
++gr_cap_rtnetlink(struct sock *sock)
++{
++#ifdef CONFIG_GRKERNSEC
++ if (!gr_acl_is_enabled())
++ return current->cap_effective;
++ else if (sock->sk_protocol == NETLINK_ISCSI &&
++ cap_raised(current->cap_effective, CAP_SYS_ADMIN) &&
++ gr_task_is_capable(current, CAP_SYS_ADMIN))
++ return current->cap_effective;
++ else if (sock->sk_protocol == NETLINK_AUDIT &&
++ cap_raised(current->cap_effective, CAP_AUDIT_WRITE) &&
++ gr_task_is_capable(current, CAP_AUDIT_WRITE) &&
++ cap_raised(current->cap_effective, CAP_AUDIT_CONTROL) &&
++ gr_task_is_capable(current, CAP_AUDIT_CONTROL))
++ return current->cap_effective;
++ else if (cap_raised(current->cap_effective, CAP_NET_ADMIN) &&
++ gr_task_is_capable(current, CAP_NET_ADMIN))
++ return current->cap_effective;
++ else
++ return __cap_empty_set;
++#else
++ return current->cap_effective;
++#endif
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_sysctl.c linux-2.6.28.8/grsecurity/grsec_sysctl.c
+--- linux-2.6.28.8/grsecurity/grsec_sysctl.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_sysctl.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,435 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/sysctl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++#ifdef CONFIG_GRKERNSEC_MODSTOP
++int grsec_modstop;
++#endif
++
++int
++gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
++{
++#ifdef CONFIG_GRKERNSEC_SYSCTL
++ if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
++ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
++ return -EACCES;
++ }
++#endif
++#ifdef CONFIG_GRKERNSEC_MODSTOP
++ if (!strcmp(dirname, "grsecurity") && !strcmp(name, "disable_modules") &&
++ grsec_modstop && (op & MAY_WRITE)) {
++ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
++ return -EACCES;
++ }
++#endif
++ return 0;
++}
++
++#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_MODSTOP)
++ctl_table grsecurity_table[] = {
++#ifdef CONFIG_GRKERNSEC_SYSCTL
++#ifdef CONFIG_GRKERNSEC_LINK
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "linking_restrictions",
++ .data = &grsec_enable_link,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_FIFO
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "fifo_restrictions",
++ .data = &grsec_enable_fifo,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_EXECVE
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "execve_limiting",
++ .data = &grsec_enable_execve,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "exec_logging",
++ .data = &grsec_enable_execlog,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_SIGNAL
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "signal_logging",
++ .data = &grsec_enable_signal,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_FORKFAIL
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "forkfail_logging",
++ .data = &grsec_enable_forkfail,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_TIME
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "timechange_logging",
++ .data = &grsec_enable_time,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_shmat",
++ .data = &grsec_enable_chroot_shmat,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_unix",
++ .data = &grsec_enable_chroot_unix,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_mount",
++ .data = &grsec_enable_chroot_mount,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_fchdir",
++ .data = &grsec_enable_chroot_fchdir,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_chroot",
++ .data = &grsec_enable_chroot_double,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_pivot",
++ .data = &grsec_enable_chroot_pivot,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_enforce_chdir",
++ .data = &grsec_enable_chroot_chdir,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_chmod",
++ .data = &grsec_enable_chroot_chmod,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_mknod",
++ .data = &grsec_enable_chroot_mknod,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_restrict_nice",
++ .data = &grsec_enable_chroot_nice,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_execlog",
++ .data = &grsec_enable_chroot_execlog,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_caps",
++ .data = &grsec_enable_chroot_caps,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_deny_sysctl",
++ .data = &grsec_enable_chroot_sysctl,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_TPE
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "tpe",
++ .data = &grsec_enable_tpe,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "tpe_gid",
++ .data = &grsec_tpe_gid,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_TPE_ALL
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "tpe_restrict_all",
++ .data = &grsec_enable_tpe_all,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "socket_all",
++ .data = &grsec_enable_socket_all,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "socket_all_gid",
++ .data = &grsec_socket_all_gid,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "socket_client",
++ .data = &grsec_enable_socket_client,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "socket_client_gid",
++ .data = &grsec_socket_client_gid,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "socket_server",
++ .data = &grsec_enable_socket_server,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "socket_server_gid",
++ .data = &grsec_socket_server_gid,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "audit_group",
++ .data = &grsec_enable_group,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "audit_gid",
++ .data = &grsec_audit_gid,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "audit_chdir",
++ .data = &grsec_enable_chdir,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "audit_mount",
++ .data = &grsec_enable_mount,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_IPC
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "audit_ipc",
++ .data = &grsec_enable_audit_ipc,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "audit_textrel",
++ .data = &grsec_enable_audit_textrel,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_DMESG
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "dmesg",
++ .data = &grsec_enable_dmesg,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "chroot_findtask",
++ .data = &grsec_enable_chroot_findtask,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_RESLOG
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "resource_logging",
++ .data = &grsec_resource_logging,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "grsec_lock",
++ .data = &grsec_lock,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++#ifdef CONFIG_GRKERNSEC_MODSTOP
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "disable_modules",
++ .data = &grsec_modstop,
++ .maxlen = sizeof(int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++#endif
++ { .ctl_name = 0 }
++};
++#endif
++
++int gr_check_modstop(void)
++{
++#ifdef CONFIG_GRKERNSEC_MODSTOP
++ if (grsec_modstop == 1) {
++ gr_log_noargs(GR_DONT_AUDIT, GR_STOPMOD_MSG);
++ return 1;
++ }
++#endif
++ return 0;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_textrel.c linux-2.6.28.8/grsecurity/grsec_textrel.c
+--- linux-2.6.28.8/grsecurity/grsec_textrel.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_textrel.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,16 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/file.h>
++#include <linux/grinternal.h>
++#include <linux/grsecurity.h>
++
++void
++gr_log_textrel(struct vm_area_struct * vma)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
++ if (grsec_enable_audit_textrel)
++ gr_log_textrel_ulong_ulong(GR_DO_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
++#endif
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_time.c linux-2.6.28.8/grsecurity/grsec_time.c
+--- linux-2.6.28.8/grsecurity/grsec_time.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_time.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,13 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/grinternal.h>
++
++void
++gr_log_timechange(void)
++{
++#ifdef CONFIG_GRKERNSEC_TIME
++ if (grsec_enable_time)
++ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
++#endif
++ return;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsec_tpe.c linux-2.6.28.8/grsecurity/grsec_tpe.c
+--- linux-2.6.28.8/grsecurity/grsec_tpe.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsec_tpe.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,37 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/grinternal.h>
++
++extern int gr_acl_tpe_check(void);
++
++int
++gr_tpe_allow(const struct file *file)
++{
++#ifdef CONFIG_GRKERNSEC
++ struct inode *inode = file->f_path.dentry->d_parent->d_inode;
++
++ if (current->uid && ((grsec_enable_tpe &&
++#ifdef CONFIG_GRKERNSEC_TPE_INVERT
++ !in_group_p(grsec_tpe_gid)
++#else
++ in_group_p(grsec_tpe_gid)
++#endif
++ ) || gr_acl_tpe_check()) &&
++ (inode->i_uid || (!inode->i_uid && ((inode->i_mode & S_IWGRP) ||
++ (inode->i_mode & S_IWOTH))))) {
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt);
++ return 0;
++ }
++#ifdef CONFIG_GRKERNSEC_TPE_ALL
++ if (current->uid && grsec_enable_tpe && grsec_enable_tpe_all &&
++ ((inode->i_uid && (inode->i_uid != current->uid)) ||
++ (inode->i_mode & S_IWGRP) || (inode->i_mode & S_IWOTH))) {
++ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt);
++ return 0;
++ }
++#endif
++#endif
++ return 1;
++}
+diff -urNp linux-2.6.28.8/grsecurity/grsum.c linux-2.6.28.8/grsecurity/grsum.c
+--- linux-2.6.28.8/grsecurity/grsum.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/grsum.c 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,59 @@
++#include <linux/err.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/scatterlist.h>
++#include <linux/crypto.h>
++#include <linux/gracl.h>
++
++
++#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
++#error "crypto and sha256 must be built into the kernel"
++#endif
++
++int
++chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
++{
++ char *p;
++ struct crypto_hash *tfm;
++ struct hash_desc desc;
++ struct scatterlist sg;
++ unsigned char temp_sum[GR_SHA_LEN];
++ volatile int retval = 0;
++ volatile int dummy = 0;
++ unsigned int i;
++
++ tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
++ if (IS_ERR(tfm)) {
++ /* should never happen, since sha256 should be built in */
++ return 1;
++ }
++
++ desc.tfm = tfm;
++ desc.flags = 0;
++
++ crypto_hash_init(&desc);
++
++ p = salt;
++ sg_set_buf(&sg, p, GR_SALT_LEN);
++ crypto_hash_update(&desc, &sg, sg.length);
++
++ p = entry->pw;
++ sg_set_buf(&sg, p, strlen(p));
++
++ crypto_hash_update(&desc, &sg, sg.length);
++
++ crypto_hash_final(&desc, temp_sum);
++
++ memset(entry->pw, 0, GR_PW_LEN);
++
++ for (i = 0; i < GR_SHA_LEN; i++)
++ if (sum[i] != temp_sum[i])
++ retval = 1;
++ else
++ dummy = 1; // waste a cycle
++
++ crypto_free_hash(tfm);
++
++ return retval;
++}
+diff -urNp linux-2.6.28.8/grsecurity/Kconfig linux-2.6.28.8/grsecurity/Kconfig
+--- linux-2.6.28.8/grsecurity/Kconfig 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/Kconfig 2009-03-07 14:50:21.000000000 -0500
+@@ -0,0 +1,868 @@
++#
++# grecurity configuration
++#
++
++menu "Grsecurity"
++
++config GRKERNSEC
++ bool "Grsecurity"
++ select CRYPTO
++ select CRYPTO_SHA256
++ select SECURITY
++ select SECURITY_CAPABILITIES
++ help
++ If you say Y here, you will be able to configure many features
++ that will enhance the security of your system. It is highly
++ recommended that you say Y here and read through the help
++ for each option so that you fully understand the features and
++ can evaluate their usefulness for your machine.
++
++choice
++ prompt "Security Level"
++ depends on GRKERNSEC
++ default GRKERNSEC_CUSTOM
++
++config GRKERNSEC_LOW
++ bool "Low"
++ select GRKERNSEC_LINK
++ select GRKERNSEC_FIFO
++ select GRKERNSEC_EXECVE
++ select GRKERNSEC_RANDNET
++ select GRKERNSEC_DMESG
++ select GRKERNSEC_CHROOT
++ select GRKERNSEC_CHROOT_CHDIR
++ select GRKERNSEC_MODSTOP if (MODULES)
++
++ help
++ If you choose this option, several of the grsecurity options will
++ be enabled that will give you greater protection against a number
++ of attacks, while assuring that none of your software will have any
++ conflicts with the additional security measures. If you run a lot
++ of unusual software, or you are having problems with the higher
++ security levels, you should say Y here. With this option, the
++ following features are enabled:
++
++ - Linking restrictions
++ - FIFO restrictions
++ - Enforcing RLIMIT_NPROC on execve
++ - Restricted dmesg
++ - Enforced chdir("/") on chroot
++ - Runtime module disabling
++
++config GRKERNSEC_MEDIUM
++ bool "Medium"
++ select PAX
++ select PAX_EI_PAX
++ select PAX_PT_PAX_FLAGS
++ select PAX_HAVE_ACL_FLAGS
++ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR)
++ select GRKERNSEC_CHROOT
++ select GRKERNSEC_CHROOT_SYSCTL
++ select GRKERNSEC_LINK
++ select GRKERNSEC_FIFO
++ select GRKERNSEC_EXECVE
++ select GRKERNSEC_DMESG
++ select GRKERNSEC_RANDNET
++ select GRKERNSEC_FORKFAIL
++ select GRKERNSEC_TIME
++ select GRKERNSEC_SIGNAL
++ select GRKERNSEC_CHROOT
++ select GRKERNSEC_CHROOT_UNIX
++ select GRKERNSEC_CHROOT_MOUNT
++ select GRKERNSEC_CHROOT_PIVOT
++ select GRKERNSEC_CHROOT_DOUBLE
++ select GRKERNSEC_CHROOT_CHDIR
++ select GRKERNSEC_CHROOT_MKNOD
++ select GRKERNSEC_PROC
++ select GRKERNSEC_PROC_USERGROUP
++ select GRKERNSEC_MODSTOP if (MODULES)
++ select PAX_RANDUSTACK
++ select PAX_ASLR
++ select PAX_RANDMMAP
++ select PAX_REFCOUNT if (X86)
++
++ help
++ If you say Y here, several features in addition to those included
++ in the low additional security level will be enabled. These
++ features provide even more security to your system, though in rare
++ cases they may be incompatible with very old or poorly written
++ software. If you enable this option, make sure that your auth
++ service (identd) is running as gid 1001. With this option,
++ the following features (in addition to those provided in the
++ low additional security level) will be enabled:
++
++ - Failed fork logging
++ - Time change logging
++ - Signal logging
++ - Deny mounts in chroot
++ - Deny double chrooting
++ - Deny sysctl writes in chroot
++ - Deny mknod in chroot
++ - Deny access to abstract AF_UNIX sockets out of chroot
++ - Deny pivot_root in chroot
++ - Denied writes of /dev/kmem, /dev/mem, and /dev/port
++ - /proc restrictions with special GID set to 10 (usually wheel)
++ - Address Space Layout Randomization (ASLR)
++ - Prevent exploitation of most refcount overflows
++
++config GRKERNSEC_HIGH
++ bool "High"
++ select GRKERNSEC_LINK
++ select GRKERNSEC_FIFO
++ select GRKERNSEC_EXECVE
++ select GRKERNSEC_DMESG
++ select GRKERNSEC_FORKFAIL
++ select GRKERNSEC_TIME
++ select GRKERNSEC_SIGNAL
++ select GRKERNSEC_CHROOT
++ select GRKERNSEC_CHROOT_SHMAT
++ select GRKERNSEC_CHROOT_UNIX
++ select GRKERNSEC_CHROOT_MOUNT
++ select GRKERNSEC_CHROOT_FCHDIR
++ select GRKERNSEC_CHROOT_PIVOT
++ select GRKERNSEC_CHROOT_DOUBLE
++ select GRKERNSEC_CHROOT_CHDIR
++ select GRKERNSEC_CHROOT_MKNOD
++ select GRKERNSEC_CHROOT_CAPS
++ select GRKERNSEC_CHROOT_SYSCTL
++ select GRKERNSEC_CHROOT_FINDTASK
++ select GRKERNSEC_PROC
++ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR)
++ select GRKERNSEC_HIDESYM
++ select GRKERNSEC_BRUTE
++ select GRKERNSEC_PROC_USERGROUP
++ select GRKERNSEC_KMEM
++ select GRKERNSEC_RESLOG
++ select GRKERNSEC_RANDNET
++ select GRKERNSEC_PROC_ADD
++ select GRKERNSEC_CHROOT_CHMOD
++ select GRKERNSEC_CHROOT_NICE
++ select GRKERNSEC_AUDIT_MOUNT
++ select GRKERNSEC_MODSTOP if (MODULES)
++ select PAX
++ select PAX_RANDUSTACK
++ select PAX_ASLR
++ select PAX_RANDMMAP
++ select PAX_NOEXEC
++ select PAX_MPROTECT
++ select PAX_EI_PAX
++ select PAX_PT_PAX_FLAGS
++ select PAX_HAVE_ACL_FLAGS
++ select PAX_KERNEXEC if (X86 && !EFI && !COMPAT_VDSO && !PARAVIRT && (!X86_32 || X86_WP_WORKS_OK))
++ select PAX_MEMORY_UDEREF if (!X86_64 && !COMPAT_VDSO)
++ select PAX_RANDKSTACK if (X86_TSC && !X86_64)
++ select PAX_SEGMEXEC if (X86 && !X86_64)
++ select PAX_PAGEEXEC if (!X86)
++ select PAX_EMUPLT if (ALPHA || PARISC || PPC32 || SPARC32 || SPARC64)
++ select PAX_DLRESOLVE if (SPARC32 || SPARC64)
++ select PAX_SYSCALL if (PPC32)
++ select PAX_EMUTRAMP if (PARISC)
++ select PAX_EMUSIGRT if (PARISC)
++ select PAX_ETEXECRELOCS if (ALPHA || IA64 || PARISC)
++ select PAX_REFCOUNT if (X86)
++ help
++ If you say Y here, many of the features of grsecurity will be
++ enabled, which will protect you against many kinds of attacks
++ against your system. The heightened security comes at a cost
++ of an increased chance of incompatibilities with rare software
++ on your machine. Since this security level enables PaX, you should
++ view <http://pax.grsecurity.net> and read about the PaX
++ project. While you are there, download chpax and run it on
++ binaries that cause problems with PaX. Also remember that
++ since the /proc restrictions are enabled, you must run your
++ identd as gid 1001. This security level enables the following
++ features in addition to those listed in the low and medium
++ security levels:
++
++ - Additional /proc restrictions
++ - Chmod restrictions in chroot
++ - No signals, ptrace, or viewing of processes outside of chroot
++ - Capability restrictions in chroot
++ - Deny fchdir out of chroot
++ - Priority restrictions in chroot
++ - Segmentation-based implementation of PaX
++ - Mprotect restrictions
++ - Removal of addresses from /proc/<pid>/[smaps|maps|stat]
++ - Kernel stack randomization
++ - Mount/unmount/remount logging
++ - Kernel symbol hiding
++ - Prevention of memory exhaustion-based exploits
++config GRKERNSEC_CUSTOM
++ bool "Custom"
++ help
++ If you say Y here, you will be able to configure every grsecurity
++ option, which allows you to enable many more features that aren't
++ covered in the basic security levels. These additional features
++ include TPE, socket restrictions, and the sysctl system for
++ grsecurity. It is advised that you read through the help for
++ each option to determine its usefulness in your situation.
++
++endchoice
++
++menu "Address Space Protection"
++depends on GRKERNSEC
++
++config GRKERNSEC_KMEM
++ bool "Deny writing to /dev/kmem, /dev/mem, and /dev/port"
++ help
++ If you say Y here, /dev/kmem and /dev/mem won't be allowed to
++ be written to via mmap or otherwise to modify the running kernel.
++ /dev/port will also not be allowed to be opened. If you have module
++ support disabled, enabling this will close up four ways that are
++ currently used to insert malicious code into the running kernel.
++ Even with all these features enabled, we still highly recommend that
++ you use the RBAC system, as it is still possible for an attacker to
++ modify the running kernel through privileged I/O granted by ioperm/iopl.
++ If you are not using XFree86, you may be able to stop this additional
++ case by enabling the 'Disable privileged I/O' option. Though nothing
++ legitimately writes to /dev/kmem, XFree86 does need to write to /dev/mem,
++ but only to video memory, which is the only writing we allow in this
++ case. If /dev/kmem or /dev/mem are mmaped without PROT_WRITE, they will
++ not be allowed to mprotect it with PROT_WRITE later.
++ It is highly recommended that you say Y here if you meet all the
++ conditions above.
++
++config GRKERNSEC_IO
++ bool "Disable privileged I/O"
++ depends on X86
++ select RTC_CLASS
++ select RTC_INTF_DEV
++ help
++ If you say Y here, all ioperm and iopl calls will return an error.
++ Ioperm and iopl can be used to modify the running kernel.
++ Unfortunately, some programs need this access to operate properly,
++ the most notable of which are XFree86 and hwclock. hwclock can be
++ remedied by having RTC support in the kernel, so real-time
++ clock support is enabled if this option is enabled, to ensure
++ that hwclock operates correctly. XFree86 still will not
++ operate correctly with this option enabled, so DO NOT CHOOSE Y
++ IF YOU USE XFree86. If you use XFree86 and you still want to
++ protect your kernel against modification, use the RBAC system.
++
++config GRKERNSEC_PROC_MEMMAP
++ bool "Remove addresses from /proc/<pid>/[smaps|maps|stat]"
++ depends on PAX_NOEXEC || PAX_ASLR
++ help
++ If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
++ give no information about the addresses of its mappings if
++ PaX features that rely on random addresses are enabled on the task.
++ If you use PaX it is greatly recommended that you say Y here as it
++ closes up a hole that makes the full ASLR useless for suid
++ binaries.
++
++config GRKERNSEC_BRUTE
++ bool "Deter exploit bruteforcing"
++ help
++ If you say Y here, attempts to bruteforce exploits against forking
++ daemons such as apache or sshd will be deterred. When a child of a
++ forking daemon is killed by PaX or crashes due to an illegal
++ instruction, the parent process will be delayed 30 seconds upon every
++ subsequent fork until the administrator is able to assess the
++ situation and restart the daemon. It is recommended that you also
++ enable signal logging in the auditing section so that logs are
++ generated when a process performs an illegal instruction.
++
++config GRKERNSEC_MODSTOP
++ bool "Runtime module disabling"
++ depends on MODULES
++ help
++ If you say Y here, you will be able to disable the ability to (un)load
++ modules at runtime. This feature is useful if you need the ability
++ to load kernel modules at boot time, but do not want to allow an
++ attacker to load a rootkit kernel module into the system, or to remove
++ a loaded kernel module important to system functioning. You should
++ enable the /dev/mem protection feature as well, since rootkits can be
++ inserted into the kernel via other methods than kernel modules. Since
++ an untrusted module could still be loaded by modifying init scripts and
++ rebooting the system, it is also recommended that you enable the RBAC
++ system. If you enable this option, a sysctl option with name
++ "disable_modules" will be created. Setting this option to "1" disables
++ module loading. After this option is set, no further writes to it are
++ allowed until the system is rebooted.
++
++config GRKERNSEC_HIDESYM
++ bool "Hide kernel symbols"
++ help
++ If you say Y here, getting information on loaded modules, and
++ displaying all kernel symbols through a syscall will be restricted
++ to users with CAP_SYS_MODULE. This option is only effective
++ provided the following conditions are met:
++ 1) The kernel using grsecurity is not precompiled by some distribution
++ 2) You are using the RBAC system and hiding other files such as your
++ kernel image and System.map
++ 3) You have the additional /proc restrictions enabled, which removes
++ /proc/kcore
++ If the above conditions are met, this option will aid to provide a
++ useful protection against local and remote kernel exploitation of
++ overflows and arbitrary read/write vulnerabilities.
++
++endmenu
++menu "Role Based Access Control Options"
++depends on GRKERNSEC
++
++config GRKERNSEC_ACL_HIDEKERN
++ bool "Hide kernel processes"
++ help
++ If you say Y here, all kernel threads will be hidden to all
++ processes but those whose subject has the "view hidden processes"
++ flag.
++
++config GRKERNSEC_ACL_MAXTRIES
++ int "Maximum tries before password lockout"
++ default 3
++ help
++ This option enforces the maximum number of times a user can attempt
++ to authorize themselves with the grsecurity RBAC system before being
++ denied the ability to attempt authorization again for a specified time.
++ The lower the number, the harder it will be to brute-force a password.
++
++config GRKERNSEC_ACL_TIMEOUT
++ int "Time to wait after max password tries, in seconds"
++ default 30
++ help
++ This option specifies the time the user must wait after attempting to
++ authorize to the RBAC system with the maximum number of invalid
++ passwords. The higher the number, the harder it will be to brute-force
++ a password.
++
++endmenu
++menu "Filesystem Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_PROC
++ bool "Proc restrictions"
++ help
++ If you say Y here, the permissions of the /proc filesystem
++ will be altered to enhance system security and privacy. You MUST
++ choose either a user only restriction or a user and group restriction.
++ Depending upon the option you choose, you can either restrict users to
++ see only the processes they themselves run, or choose a group that can
++ view all processes and files normally restricted to root if you choose
++ the "restrict to user only" option. NOTE: If you're running identd as
++ a non-root user, you will have to run it as the group you specify here.
++
++config GRKERNSEC_PROC_USER
++ bool "Restrict /proc to user only"
++ depends on GRKERNSEC_PROC
++ help
++ If you say Y here, non-root users will only be able to view their own
++ processes, and restricts them from viewing network-related information,
++ and viewing kernel symbol and module information.
++
++config GRKERNSEC_PROC_USERGROUP
++ bool "Allow special group"
++ depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
++ help
++ If you say Y here, you will be able to select a group that will be
++ able to view all processes, network-related information, and
++ kernel and symbol information. This option is useful if you want
++ to run identd as a non-root user.
++
++config GRKERNSEC_PROC_GID
++ int "GID for special group"
++ depends on GRKERNSEC_PROC_USERGROUP
++ default 1001
++
++config GRKERNSEC_PROC_ADD
++ bool "Additional restrictions"
++ depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
++ help
++ If you say Y here, additional restrictions will be placed on
++ /proc that keep normal users from viewing device information and
++ slabinfo information that could be useful for exploits.
++
++config GRKERNSEC_LINK
++ bool "Linking restrictions"
++ help
++ If you say Y here, /tmp race exploits will be prevented, since users
++ will no longer be able to follow symlinks owned by other users in
++ world-writable +t directories (i.e. /tmp), unless the owner of the
++ symlink is the owner of the directory. users will also not be
++ able to hardlink to files they do not own. If the sysctl option is
++ enabled, a sysctl option with name "linking_restrictions" is created.
++
++config GRKERNSEC_FIFO
++ bool "FIFO restrictions"
++ help
++ If you say Y here, users will not be able to write to FIFOs they don't
++ own in world-writable +t directories (i.e. /tmp), unless the owner of
++ the FIFO is the same owner of the directory it's held in. If the sysctl
++ option is enabled, a sysctl option with name "fifo_restrictions" is
++ created.
++
++config GRKERNSEC_CHROOT
++ bool "Chroot jail restrictions"
++ help
++ If you say Y here, you will be able to choose several options that will
++ make breaking out of a chrooted jail much more difficult. If you
++ encounter no software incompatibilities with the following options, it
++ is recommended that you enable each one.
++
++config GRKERNSEC_CHROOT_MOUNT
++ bool "Deny mounts"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to
++ mount or remount filesystems. If the sysctl option is enabled, a
++ sysctl option with name "chroot_deny_mount" is created.
++
++config GRKERNSEC_CHROOT_DOUBLE
++ bool "Deny double-chroots"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to chroot
++ again outside the chroot. This is a widely used method of breaking
++ out of a chroot jail and should not be allowed. If the sysctl
++ option is enabled, a sysctl option with name
++ "chroot_deny_chroot" is created.
++
++config GRKERNSEC_CHROOT_PIVOT
++ bool "Deny pivot_root in chroot"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to use
++ a function called pivot_root() that was introduced in Linux 2.3.41. It
++ works similar to chroot in that it changes the root filesystem. This
++ function could be misused in a chrooted process to attempt to break out
++ of the chroot, and therefore should not be allowed. If the sysctl
++ option is enabled, a sysctl option with name "chroot_deny_pivot" is
++ created.
++
++config GRKERNSEC_CHROOT_CHDIR
++ bool "Enforce chdir(\"/\") on all chroots"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, the current working directory of all newly-chrooted
++ applications will be set to the the root directory of the chroot.
++ The man page on chroot(2) states:
++ Note that this call does not change the current working
++ directory, so that `.' can be outside the tree rooted at
++ `/'. In particular, the super-user can escape from a
++ `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
++
++ It is recommended that you say Y here, since it's not known to break
++ any software. If the sysctl option is enabled, a sysctl option with
++ name "chroot_enforce_chdir" is created.
++
++config GRKERNSEC_CHROOT_CHMOD
++ bool "Deny (f)chmod +s"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to chmod
++ or fchmod files to make them have suid or sgid bits. This protects
++ against another published method of breaking a chroot. If the sysctl
++ option is enabled, a sysctl option with name "chroot_deny_chmod" is
++ created.
++
++config GRKERNSEC_CHROOT_FCHDIR
++ bool "Deny fchdir out of chroot"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, a well-known method of breaking chroots by fchdir'ing
++ to a file descriptor of the chrooting process that points to a directory
++ outside the filesystem will be stopped. If the sysctl option
++ is enabled, a sysctl option with name "chroot_deny_fchdir" is created.
++
++config GRKERNSEC_CHROOT_MKNOD
++ bool "Deny mknod"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be allowed to
++ mknod. The problem with using mknod inside a chroot is that it
++ would allow an attacker to create a device entry that is the same
++ as one on the physical root of your system, which could range from
++ anything from the console device to a device for your harddrive (which
++ they could then use to wipe the drive or steal data). It is recommended
++ that you say Y here, unless you run into software incompatibilities.
++ If the sysctl option is enabled, a sysctl option with name
++ "chroot_deny_mknod" is created.
++
++config GRKERNSEC_CHROOT_SHMAT
++ bool "Deny shmat() out of chroot"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to attach
++ to shared memory segments that were created outside of the chroot jail.
++ It is recommended that you say Y here. If the sysctl option is enabled,
++ a sysctl option with name "chroot_deny_shmat" is created.
++
++config GRKERNSEC_CHROOT_UNIX
++ bool "Deny access to abstract AF_UNIX sockets out of chroot"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to
++ connect to abstract (meaning not belonging to a filesystem) Unix
++ domain sockets that were bound outside of a chroot. It is recommended
++ that you say Y here. If the sysctl option is enabled, a sysctl option
++ with name "chroot_deny_unix" is created.
++
++config GRKERNSEC_CHROOT_FINDTASK
++ bool "Protect outside processes"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to
++ kill, send signals with fcntl, ptrace, capget, getpgid, getsid,
++ or view any process outside of the chroot. If the sysctl
++ option is enabled, a sysctl option with name "chroot_findtask" is
++ created.
++
++config GRKERNSEC_CHROOT_NICE
++ bool "Restrict priority changes"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, processes inside a chroot will not be able to raise
++ the priority of processes in the chroot, or alter the priority of
++ processes outside the chroot. This provides more security than simply
++ removing CAP_SYS_NICE from the process' capability set. If the
++ sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
++ is created.
++
++config GRKERNSEC_CHROOT_SYSCTL
++ bool "Deny sysctl writes"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, an attacker in a chroot will not be able to
++ write to sysctl entries, either by sysctl(2) or through a /proc
++ interface. It is strongly recommended that you say Y here. If the
++ sysctl option is enabled, a sysctl option with name
++ "chroot_deny_sysctl" is created.
++
++config GRKERNSEC_CHROOT_CAPS
++ bool "Capability restrictions"
++ depends on GRKERNSEC_CHROOT
++ help
++ If you say Y here, the capabilities on all root processes within a
++ chroot jail will be lowered to stop module insertion, raw i/o,
++ system and net admin tasks, rebooting the system, modifying immutable
++ files, modifying IPC owned by another, and changing the system time.
++ This is left an option because it can break some apps. Disable this
++ if your chrooted apps are having problems performing those kinds of
++ tasks. If the sysctl option is enabled, a sysctl option with
++ name "chroot_caps" is created.
++
++endmenu
++menu "Kernel Auditing"
++depends on GRKERNSEC
++
++config GRKERNSEC_AUDIT_GROUP
++ bool "Single group for auditing"
++ help
++ If you say Y here, the exec, chdir, (un)mount, and ipc logging features
++ will only operate on a group you specify. This option is recommended
++ if you only want to watch certain users instead of having a large
++ amount of logs from the entire system. If the sysctl option is enabled,
++ a sysctl option with name "audit_group" is created.
++
++config GRKERNSEC_AUDIT_GID
++ int "GID for auditing"
++ depends on GRKERNSEC_AUDIT_GROUP
++ default 1007
++
++config GRKERNSEC_EXECLOG
++ bool "Exec logging"
++ help
++ If you say Y here, all execve() calls will be logged (since the
++ other exec*() calls are frontends to execve(), all execution
++ will be logged). Useful for shell-servers that like to keep track
++ of their users. If the sysctl option is enabled, a sysctl option with
++ name "exec_logging" is created.
++ WARNING: This option when enabled will produce a LOT of logs, especially
++ on an active system.
++
++config GRKERNSEC_RESLOG
++ bool "Resource logging"
++ help
++ If you say Y here, all attempts to overstep resource limits will
++ be logged with the resource name, the requested size, and the current
++ limit. It is highly recommended that you say Y here. If the sysctl
++ option is enabled, a sysctl option with name "resource_logging" is
++ created. If the RBAC system is enabled, the sysctl value is ignored.
++
++config GRKERNSEC_CHROOT_EXECLOG
++ bool "Log execs within chroot"
++ help
++ If you say Y here, all executions inside a chroot jail will be logged
++ to syslog. This can cause a large amount of logs if certain
++ applications (eg. djb's daemontools) are installed on the system, and
++ is therefore left as an option. If the sysctl option is enabled, a
++ sysctl option with name "chroot_execlog" is created.
++
++config GRKERNSEC_AUDIT_CHDIR
++ bool "Chdir logging"
++ help
++ If you say Y here, all chdir() calls will be logged. If the sysctl
++ option is enabled, a sysctl option with name "audit_chdir" is created.
++
++config GRKERNSEC_AUDIT_MOUNT
++ bool "(Un)Mount logging"
++ help
++ If you say Y here, all mounts and unmounts will be logged. If the
++ sysctl option is enabled, a sysctl option with name "audit_mount" is
++ created.
++
++config GRKERNSEC_AUDIT_IPC
++ bool "IPC logging"
++ help
++ If you say Y here, creation and removal of message queues, semaphores,
++ and shared memory will be logged. If the sysctl option is enabled, a
++ sysctl option with name "audit_ipc" is created.
++
++config GRKERNSEC_SIGNAL
++ bool "Signal logging"
++ help
++ If you say Y here, certain important signals will be logged, such as
++ SIGSEGV, which will as a result inform you of when a error in a program
++ occurred, which in some cases could mean a possible exploit attempt.
++ If the sysctl option is enabled, a sysctl option with name
++ "signal_logging" is created.
++
++config GRKERNSEC_FORKFAIL
++ bool "Fork failure logging"
++ help
++ If you say Y here, all failed fork() attempts will be logged.
++ This could suggest a fork bomb, or someone attempting to overstep
++ their process limit. If the sysctl option is enabled, a sysctl option
++ with name "forkfail_logging" is created.
++
++config GRKERNSEC_TIME
++ bool "Time change logging"
++ help
++ If you say Y here, any changes of the system clock will be logged.
++ If the sysctl option is enabled, a sysctl option with name
++ "timechange_logging" is created.
++
++config GRKERNSEC_PROC_IPADDR
++ bool "/proc/<pid>/ipaddr support"
++ help
++ If you say Y here, a new entry will be added to each /proc/<pid>
++ directory that contains the IP address of the person using the task.
++ The IP is carried across local TCP and AF_UNIX stream sockets.
++ This information can be useful for IDS/IPSes to perform remote response
++ to a local attack. The entry is readable by only the owner of the
++ process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
++ the RBAC system), and thus does not create privacy concerns.
++
++config GRKERNSEC_AUDIT_TEXTREL
++ bool 'ELF text relocations logging (READ HELP)'
++ depends on PAX_MPROTECT
++ help
++ If you say Y here, text relocations will be logged with the filename
++ of the offending library or binary. The purpose of the feature is
++ to help Linux distribution developers get rid of libraries and
++ binaries that need text relocations which hinder the future progress
++ of PaX. Only Linux distribution developers should say Y here, and
++ never on a production machine, as this option creates an information
++ leak that could aid an attacker in defeating the randomization of
++ a single memory region. If the sysctl option is enabled, a sysctl
++ option with name "audit_textrel" is created.
++
++endmenu
++
++menu "Executable Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_EXECVE
++ bool "Enforce RLIMIT_NPROC on execs"
++ help
++ If you say Y here, users with a resource limit on processes will
++ have the value checked during execve() calls. The current system
++ only checks the system limit during fork() calls. If the sysctl option
++ is enabled, a sysctl option with name "execve_limiting" is created.
++
++config GRKERNSEC_DMESG
++ bool "Dmesg(8) restriction"
++ help
++ If you say Y here, non-root users will not be able to use dmesg(8)
++ to view up to the last 4kb of messages in the kernel's log buffer.
++ If the sysctl option is enabled, a sysctl option with name "dmesg" is
++ created.
++
++config GRKERNSEC_TPE
++ bool "Trusted Path Execution (TPE)"
++ help
++ If you say Y here, you will be able to choose a gid to add to the
++ supplementary groups of users you want to mark as "untrusted."
++ These users will not be able to execute any files that are not in
++ root-owned directories writable only by root. If the sysctl option
++ is enabled, a sysctl option with name "tpe" is created.
++
++config GRKERNSEC_TPE_ALL
++ bool "Partially restrict non-root users"
++ depends on GRKERNSEC_TPE
++ help
++ If you say Y here, All non-root users other than the ones in the
++ group specified in the main TPE option will only be allowed to
++ execute files in directories they own that are not group or
++ world-writable, or in directories owned by root and writable only by
++ root. If the sysctl option is enabled, a sysctl option with name
++ "tpe_restrict_all" is created.
++
++config GRKERNSEC_TPE_INVERT
++ bool "Invert GID option"
++ depends on GRKERNSEC_TPE
++ help
++ If you say Y here, the group you specify in the TPE configuration will
++ decide what group TPE restrictions will be *disabled* for. This
++ option is useful if you want TPE restrictions to be applied to most
++ users on the system.
++
++config GRKERNSEC_TPE_GID
++ int "GID for untrusted users"
++ depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
++ default 1005
++ help
++ If you have selected the "Invert GID option" above, setting this
++ GID determines what group TPE restrictions will be *disabled* for.
++ If you have not selected the "Invert GID option" above, setting this
++ GID determines what group TPE restrictions will be *enabled* for.
++ If the sysctl option is enabled, a sysctl option with name "tpe_gid"
++ is created.
++
++config GRKERNSEC_TPE_GID
++ int "GID for trusted users"
++ depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
++ default 1005
++ help
++ If you have selected the "Invert GID option" above, setting this
++ GID determines what group TPE restrictions will be *disabled* for.
++ If you have not selected the "Invert GID option" above, setting this
++ GID determines what group TPE restrictions will be *enabled* for.
++ If the sysctl option is enabled, a sysctl option with name "tpe_gid"
++ is created.
++
++endmenu
++menu "Network Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_RANDNET
++ bool "Larger entropy pools"
++ help
++ If you say Y here, the entropy pools used for many features of Linux
++ and grsecurity will be doubled in size. Since several grsecurity
++ features use additional randomness, it is recommended that you say Y
++ here. Saying Y here has a similar effect as modifying
++ /proc/sys/kernel/random/poolsize.
++
++config GRKERNSEC_SOCKET
++ bool "Socket restrictions"
++ help
++ If you say Y here, you will be able to choose from several options.
++ If you assign a GID on your system and add it to the supplementary
++ groups of users you want to restrict socket access to, this patch
++ will perform up to three things, based on the option(s) you choose.
++
++config GRKERNSEC_SOCKET_ALL
++ bool "Deny any sockets to group"
++ depends on GRKERNSEC_SOCKET
++ help
++ If you say Y here, you will be able to choose a GID of whose users will
++ be unable to connect to other hosts from your machine or run server
++ applications from your machine. If the sysctl option is enabled, a
++ sysctl option with name "socket_all" is created.
++
++config GRKERNSEC_SOCKET_ALL_GID
++ int "GID to deny all sockets for"
++ depends on GRKERNSEC_SOCKET_ALL
++ default 1004
++ help
++ Here you can choose the GID to disable socket access for. Remember to
++ add the users you want socket access disabled for to the GID
++ specified here. If the sysctl option is enabled, a sysctl option
++ with name "socket_all_gid" is created.
++
++config GRKERNSEC_SOCKET_CLIENT
++ bool "Deny client sockets to group"
++ depends on GRKERNSEC_SOCKET
++ help
++ If you say Y here, you will be able to choose a GID of whose users will
++ be unable to connect to other hosts from your machine, but will be
++ able to run servers. If this option is enabled, all users in the group
++ you specify will have to use passive mode when initiating ftp transfers
++ from the shell on your machine. If the sysctl option is enabled, a
++ sysctl option with name "socket_client" is created.
++
++config GRKERNSEC_SOCKET_CLIENT_GID
++ int "GID to deny client sockets for"
++ depends on GRKERNSEC_SOCKET_CLIENT
++ default 1003
++ help
++ Here you can choose the GID to disable client socket access for.
++ Remember to add the users you want client socket access disabled for to
++ the GID specified here. If the sysctl option is enabled, a sysctl
++ option with name "socket_client_gid" is created.
++
++config GRKERNSEC_SOCKET_SERVER
++ bool "Deny server sockets to group"
++ depends on GRKERNSEC_SOCKET
++ help
++ If you say Y here, you will be able to choose a GID of whose users will
++ be unable to run server applications from your machine. If the sysctl
++ option is enabled, a sysctl option with name "socket_server" is created.
++
++config GRKERNSEC_SOCKET_SERVER_GID
++ int "GID to deny server sockets for"
++ depends on GRKERNSEC_SOCKET_SERVER
++ default 1002
++ help
++ Here you can choose the GID to disable server socket access for.
++ Remember to add the users you want server socket access disabled for to
++ the GID specified here. If the sysctl option is enabled, a sysctl
++ option with name "socket_server_gid" is created.
++
++endmenu
++menu "Sysctl support"
++depends on GRKERNSEC && SYSCTL
++
++config GRKERNSEC_SYSCTL
++ bool "Sysctl support"
++ help
++ If you say Y here, you will be able to change the options that
++ grsecurity runs with at bootup, without having to recompile your
++ kernel. You can echo values to files in /proc/sys/kernel/grsecurity
++ to enable (1) or disable (0) various features. All the sysctl entries
++ are mutable until the "grsec_lock" entry is set to a non-zero value.
++ All features enabled in the kernel configuration are disabled at boot
++ if you do not say Y to the "Turn on features by default" option.
++ All options should be set at startup, and the grsec_lock entry should
++ be set to a non-zero value after all the options are set.
++ *THIS IS EXTREMELY IMPORTANT*
++
++config GRKERNSEC_SYSCTL_ON
++ bool "Turn on features by default"
++ depends on GRKERNSEC_SYSCTL
++ help
++ If you say Y here, instead of having all features enabled in the
++ kernel configuration disabled at boot time, the features will be
++ enabled at boot time. It is recommended you say Y here unless
++ there is some reason you would want all sysctl-tunable features to
++ be disabled by default. As mentioned elsewhere, it is important
++ to enable the grsec_lock entry once you have finished modifying
++ the sysctl entries.
++
++endmenu
++menu "Logging Options"
++depends on GRKERNSEC
++
++config GRKERNSEC_FLOODTIME
++ int "Seconds in between log messages (minimum)"
++ default 10
++ help
++ This option allows you to enforce the number of seconds between
++ grsecurity log messages. The default should be suitable for most
++ people, however, if you choose to change it, choose a value small enough
++ to allow informative logs to be produced, but large enough to
++ prevent flooding.
++
++config GRKERNSEC_FLOODBURST
++ int "Number of messages in a burst (maximum)"
++ default 4
++ help
++ This option allows you to choose the maximum number of messages allowed
++ within the flood time interval you chose in a separate option. The
++ default should be suitable for most people, however if you find that
++ many of your logs are being interpreted as flooding, you may want to
++ raise this value.
++
++endmenu
++
++endmenu
+diff -urNp linux-2.6.28.8/grsecurity/Makefile linux-2.6.28.8/grsecurity/Makefile
+--- linux-2.6.28.8/grsecurity/Makefile 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/grsecurity/Makefile 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,20 @@
++# grsecurity's ACL system was originally written in 2001 by Michael Dalton
++# during 2001-2005 it has been completely redesigned by Brad Spengler
++# into an RBAC system
++#
++# All code in this directory and various hooks inserted throughout the kernel
++# are copyright Brad Spengler, and released under the GPL v2 or higher
++
++obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
++ grsec_mount.o grsec_sig.o grsec_sock.o grsec_sysctl.o \
++ grsec_time.o grsec_tpe.o grsec_ipc.o grsec_link.o grsec_textrel.o
++
++obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_ip.o gracl_segv.o \
++ gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
++ gracl_learn.o grsec_log.o
++obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
++
++ifndef CONFIG_GRKERNSEC
++obj-y += grsec_disabled.o
++endif
++
+diff -urNp linux-2.6.28.8/include/asm-frv/kmap_types.h linux-2.6.28.8/include/asm-frv/kmap_types.h
+--- linux-2.6.28.8/include/asm-frv/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/asm-frv/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
+@@ -23,6 +23,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/include/asm-generic/futex.h linux-2.6.28.8/include/asm-generic/futex.h
+--- linux-2.6.28.8/include/asm-generic/futex.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/asm-generic/futex.h 2009-02-21 09:37:49.000000000 -0500
+@@ -6,7 +6,7 @@
+ #include <asm/errno.h>
+
+ static inline int
+-futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
++futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+ {
+ int op = (encoded_op >> 28) & 7;
+ int cmp = (encoded_op >> 24) & 15;
+@@ -48,7 +48,7 @@ futex_atomic_op_inuser (int encoded_op,
+ }
+
+ static inline int
+-futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
++futex_atomic_cmpxchg_inatomic(u32 __user *uaddr, int oldval, int newval)
+ {
+ return -ENOSYS;
+ }
+diff -urNp linux-2.6.28.8/include/asm-generic/vmlinux.lds.h linux-2.6.28.8/include/asm-generic/vmlinux.lds.h
+--- linux-2.6.28.8/include/asm-generic/vmlinux.lds.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/asm-generic/vmlinux.lds.h 2009-02-21 09:37:49.000000000 -0500
+@@ -69,6 +69,7 @@
+ .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start_rodata) = .; \
+ *(.rodata) *(.rodata.*) \
++ *(.data.read_only) \
+ *(__vermagic) /* Kernel version magic */ \
+ *(__markers_strings) /* Markers: strings */ \
+ *(__tracepoints_strings)/* Tracepoints: strings */ \
+diff -urNp linux-2.6.28.8/include/asm-m32r/kmap_types.h linux-2.6.28.8/include/asm-m32r/kmap_types.h
+--- linux-2.6.28.8/include/asm-m32r/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/asm-m32r/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
+@@ -21,7 +21,8 @@ D(9) KM_IRQ0,
+ D(10) KM_IRQ1,
+ D(11) KM_SOFTIRQ0,
+ D(12) KM_SOFTIRQ1,
+-D(13) KM_TYPE_NR
++D(13) KM_CLEARPAGE,
++D(14) KM_TYPE_NR
+ };
+
+ #undef D
+diff -urNp linux-2.6.28.8/include/asm-m68k/kmap_types.h linux-2.6.28.8/include/asm-m68k/kmap_types.h
+--- linux-2.6.28.8/include/asm-m68k/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/asm-m68k/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
+@@ -15,6 +15,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/include/asm-mn10300/kmap_types.h linux-2.6.28.8/include/asm-mn10300/kmap_types.h
+--- linux-2.6.28.8/include/asm-mn10300/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/asm-mn10300/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
+@@ -25,6 +25,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/include/asm-xtensa/kmap_types.h linux-2.6.28.8/include/asm-xtensa/kmap_types.h
+--- linux-2.6.28.8/include/asm-xtensa/kmap_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/asm-xtensa/kmap_types.h 2009-02-21 09:37:49.000000000 -0500
+@@ -25,6 +25,7 @@ enum km_type {
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
++ KM_CLEARPAGE,
+ KM_TYPE_NR
+ };
+
+diff -urNp linux-2.6.28.8/include/drm/drm_pciids.h linux-2.6.28.8/include/drm/drm_pciids.h
+--- linux-2.6.28.8/include/drm/drm_pciids.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/drm/drm_pciids.h 2009-02-21 09:37:49.000000000 -0500
+@@ -243,7 +243,7 @@
+ {0x1002, 0x796d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
+ {0x1002, 0x796e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
+ {0x1002, 0x796f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define r128_PCI_IDS \
+ {0x1002, 0x4c45, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+@@ -283,14 +283,14 @@
+ {0x1002, 0x5446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x1002, 0x544C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x1002, 0x5452, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define mga_PCI_IDS \
+ {0x102b, 0x0520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G200}, \
+ {0x102b, 0x0521, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G200}, \
+ {0x102b, 0x0525, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G400}, \
+ {0x102b, 0x2527, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G550}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define mach64_PCI_IDS \
+ {0x1002, 0x4749, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+@@ -313,7 +313,7 @@
+ {0x1002, 0x4c53, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x1002, 0x4c4d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x1002, 0x4c4e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define sisdrv_PCI_IDS \
+ {0x1039, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+@@ -324,7 +324,7 @@
+ {0x1039, 0x7300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x18CA, 0x0040, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_CHIP_315}, \
+ {0x18CA, 0x0042, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_CHIP_315}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define tdfx_PCI_IDS \
+ {0x121a, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+@@ -333,7 +333,7 @@
+ {0x121a, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x121a, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x121a, 0x000b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define viadrv_PCI_IDS \
+ {0x1106, 0x3022, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+@@ -345,25 +345,25 @@
+ {0x1106, 0x3343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x1106, 0x3230, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_DX9_0}, \
+ {0x1106, 0x3157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_PRO_GROUP_A}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define i810_PCI_IDS \
+ {0x8086, 0x7121, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x8086, 0x7123, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x8086, 0x7125, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x8086, 0x1132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define i830_PCI_IDS \
+ {0x8086, 0x3577, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x8086, 0x2562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x8086, 0x3582, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x8086, 0x2572, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define gamma_PCI_IDS \
+ {0x3d3d, 0x0008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define savage_PCI_IDS \
+ {0x5333, 0x8a20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_SAVAGE3D}, \
+@@ -389,10 +389,10 @@
+ {0x5333, 0x8d02, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_TWISTER}, \
+ {0x5333, 0x8d03, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_PROSAVAGEDDR}, \
+ {0x5333, 0x8d04, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_PROSAVAGEDDR}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define ffb_PCI_IDS \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+
+ #define i915_PCI_IDS \
+ {0x8086, 0x3577, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+@@ -418,4 +418,4 @@
+ {0x8086, 0x2e02, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+ {0x8086, 0x2e12, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+ {0x8086, 0x2e22, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+- {0, 0, 0}
++ {0, 0, 0, 0, 0, 0}
+diff -urNp linux-2.6.28.8/include/linux/a.out.h linux-2.6.28.8/include/linux/a.out.h
+--- linux-2.6.28.8/include/linux/a.out.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/a.out.h 2009-02-21 09:37:49.000000000 -0500
+@@ -39,6 +39,14 @@ enum machine_type {
+ M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
+ };
+
++/* Constants for the N_FLAGS field */
++#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
++#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */
++#define F_PAX_MPROTECT 4 /* Restrict mprotect() */
++#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */
++/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
++#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
++
+ #if !defined (N_MAGIC)
+ #define N_MAGIC(exec) ((exec).a_info & 0xffff)
+ #endif
+diff -urNp linux-2.6.28.8/include/linux/binfmts.h linux-2.6.28.8/include/linux/binfmts.h
+--- linux-2.6.28.8/include/linux/binfmts.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/binfmts.h 2009-02-21 09:37:49.000000000 -0500
+@@ -74,6 +74,7 @@ struct linux_binfmt {
+ int (*load_binary)(struct linux_binprm *, struct pt_regs * regs);
+ int (*load_shlib)(struct file *);
+ int (*core_dump)(long signr, struct pt_regs *regs, struct file *file, unsigned long limit);
++ void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
+ unsigned long min_coredump; /* minimal dump size */
+ int hasvdso;
+ };
+diff -urNp linux-2.6.28.8/include/linux/cache.h linux-2.6.28.8/include/linux/cache.h
+--- linux-2.6.28.8/include/linux/cache.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/cache.h 2009-02-21 09:37:49.000000000 -0500
+@@ -16,6 +16,10 @@
+ #define __read_mostly
+ #endif
+
++#ifndef __read_only
++#define __read_only __read_mostly
++#endif
++
+ #ifndef ____cacheline_aligned
+ #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
+ #endif
+diff -urNp linux-2.6.28.8/include/linux/capability.h linux-2.6.28.8/include/linux/capability.h
+--- linux-2.6.28.8/include/linux/capability.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/capability.h 2009-02-21 09:37:49.000000000 -0500
+@@ -516,6 +516,7 @@ kernel_cap_t cap_set_effective(const ker
+ #define has_capability(t, cap) (security_capable((t), (cap)) == 0)
+
+ extern int capable(int cap);
++int capable_nolog(int cap);
+
+ #endif /* __KERNEL__ */
+
+diff -urNp linux-2.6.28.8/include/linux/cpumask.h linux-2.6.28.8/include/linux/cpumask.h
+--- linux-2.6.28.8/include/linux/cpumask.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/cpumask.h 2009-02-21 09:37:49.000000000 -0500
+@@ -142,7 +142,6 @@
+ #include <linux/bitmap.h>
+
+ typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
+-extern cpumask_t _unused_cpumask_arg_;
+
+ #define cpu_set(cpu, dst) __cpu_set((cpu), &(dst))
+ static inline void __cpu_set(int cpu, volatile cpumask_t *dstp)
+diff -urNp linux-2.6.28.8/include/linux/elf.h linux-2.6.28.8/include/linux/elf.h
+--- linux-2.6.28.8/include/linux/elf.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/elf.h 2009-02-21 09:37:49.000000000 -0500
+@@ -49,6 +49,17 @@ typedef __s64 Elf64_Sxword;
+ #define PT_GNU_EH_FRAME 0x6474e550
+
+ #define PT_GNU_STACK (PT_LOOS + 0x474e551)
++#define PT_GNU_RELRO (PT_LOOS + 0x474e552)
++
++#define PT_PAX_FLAGS (PT_LOOS + 0x5041580)
++
++/* Constants for the e_flags field */
++#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
++#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */
++#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */
++#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */
++/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
++#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
+
+ /* These constants define the different elf file types */
+ #define ET_NONE 0
+@@ -84,6 +95,8 @@ typedef __s64 Elf64_Sxword;
+ #define DT_DEBUG 21
+ #define DT_TEXTREL 22
+ #define DT_JMPREL 23
++#define DT_FLAGS 30
++ #define DF_TEXTREL 0x00000004
+ #define DT_ENCODING 32
+ #define OLD_DT_LOOS 0x60000000
+ #define DT_LOOS 0x6000000d
+@@ -230,6 +243,19 @@ typedef struct elf64_hdr {
+ #define PF_W 0x2
+ #define PF_X 0x1
+
++#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */
++#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */
++#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */
++#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */
++#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */
++#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */
++/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */
++/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */
++#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */
++#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */
++#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */
++#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */
++
+ typedef struct elf32_phdr{
+ Elf32_Word p_type;
+ Elf32_Off p_offset;
+@@ -322,6 +348,8 @@ typedef struct elf64_shdr {
+ #define EI_OSABI 7
+ #define EI_PAD 8
+
++#define EI_PAX 14
++
+ #define ELFMAG0 0x7f /* EI_MAG */
+ #define ELFMAG1 'E'
+ #define ELFMAG2 'L'
+@@ -384,6 +412,7 @@ extern Elf32_Dyn _DYNAMIC [];
+ #define elf_phdr elf32_phdr
+ #define elf_note elf32_note
+ #define elf_addr_t Elf32_Off
++#define elf_dyn Elf32_Dyn
+
+ #else
+
+@@ -392,6 +421,7 @@ extern Elf64_Dyn _DYNAMIC [];
+ #define elf_phdr elf64_phdr
+ #define elf_note elf64_note
+ #define elf_addr_t Elf64_Off
++#define elf_dyn Elf64_Dyn
+
+ #endif
+
+diff -urNp linux-2.6.28.8/include/linux/gracl.h linux-2.6.28.8/include/linux/gracl.h
+--- linux-2.6.28.8/include/linux/gracl.h 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/include/linux/gracl.h 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,318 @@
++#ifndef GR_ACL_H
++#define GR_ACL_H
++
++#include <linux/grdefs.h>
++#include <linux/resource.h>
++#include <linux/capability.h>
++#include <linux/dcache.h>
++#include <asm/resource.h>
++
++/* Major status information */
++
++#define GR_VERSION "grsecurity 2.1.13"
++#define GRSECURITY_VERSION 0x2113
++
++enum {
++ GR_SHUTDOWN = 0,
++ GR_ENABLE = 1,
++ GR_SPROLE = 2,
++ GR_RELOAD = 3,
++ GR_SEGVMOD = 4,
++ GR_STATUS = 5,
++ GR_UNSPROLE = 6,
++ GR_PASSSET = 7,
++ GR_SPROLEPAM = 8,
++};
++
++/* Password setup definitions
++ * kernel/grhash.c */
++enum {
++ GR_PW_LEN = 128,
++ GR_SALT_LEN = 16,
++ GR_SHA_LEN = 32,
++};
++
++enum {
++ GR_SPROLE_LEN = 64,
++};
++
++#define GR_NLIMITS (RLIMIT_LOCKS + 2)
++
++/* Begin Data Structures */
++
++struct sprole_pw {
++ unsigned char *rolename;
++ unsigned char salt[GR_SALT_LEN];
++ unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */
++};
++
++struct name_entry {
++ __u32 key;
++ ino_t inode;
++ dev_t device;
++ char *name;
++ __u16 len;
++ __u8 deleted;
++ struct name_entry *prev;
++ struct name_entry *next;
++};
++
++struct inodev_entry {
++ struct name_entry *nentry;
++ struct inodev_entry *prev;
++ struct inodev_entry *next;
++};
++
++struct acl_role_db {
++ struct acl_role_label **r_hash;
++ __u32 r_size;
++};
++
++struct inodev_db {
++ struct inodev_entry **i_hash;
++ __u32 i_size;
++};
++
++struct name_db {
++ struct name_entry **n_hash;
++ __u32 n_size;
++};
++
++struct crash_uid {
++ uid_t uid;
++ unsigned long expires;
++};
++
++struct gr_hash_struct {
++ void **table;
++ void **nametable;
++ void *first;
++ __u32 table_size;
++ __u32 used_size;
++ int type;
++};
++
++/* Userspace Grsecurity ACL data structures */
++
++struct acl_subject_label {
++ char *filename;
++ ino_t inode;
++ dev_t device;
++ __u32 mode;
++ kernel_cap_t cap_mask;
++ kernel_cap_t cap_lower;
++
++ struct rlimit res[GR_NLIMITS];
++ __u16 resmask;
++
++ __u8 user_trans_type;
++ __u8 group_trans_type;
++ uid_t *user_transitions;
++ gid_t *group_transitions;
++ __u16 user_trans_num;
++ __u16 group_trans_num;
++
++ __u32 ip_proto[8];
++ __u32 ip_type;
++ struct acl_ip_label **ips;
++ __u32 ip_num;
++ __u32 inaddr_any_override;
++
++ __u32 crashes;
++ unsigned long expires;
++
++ struct acl_subject_label *parent_subject;
++ struct gr_hash_struct *hash;
++ struct acl_subject_label *prev;
++ struct acl_subject_label *next;
++
++ struct acl_object_label **obj_hash;
++ __u32 obj_hash_size;
++ __u16 pax_flags;
++};
++
++struct role_allowed_ip {
++ __u32 addr;
++ __u32 netmask;
++
++ struct role_allowed_ip *prev;
++ struct role_allowed_ip *next;
++};
++
++struct role_transition {
++ char *rolename;
++
++ struct role_transition *prev;
++ struct role_transition *next;
++};
++
++struct acl_role_label {
++ char *rolename;
++ uid_t uidgid;
++ __u16 roletype;
++
++ __u16 auth_attempts;
++ unsigned long expires;
++
++ struct acl_subject_label *root_label;
++ struct gr_hash_struct *hash;
++
++ struct acl_role_label *prev;
++ struct acl_role_label *next;
++
++ struct role_transition *transitions;
++ struct role_allowed_ip *allowed_ips;
++ uid_t *domain_children;
++ __u16 domain_child_num;
++
++ struct acl_subject_label **subj_hash;
++ __u32 subj_hash_size;
++};
++
++struct user_acl_role_db {
++ struct acl_role_label **r_table;
++ __u32 num_pointers; /* Number of allocations to track */
++ __u32 num_roles; /* Number of roles */
++ __u32 num_domain_children; /* Number of domain children */
++ __u32 num_subjects; /* Number of subjects */
++ __u32 num_objects; /* Number of objects */
++};
++
++struct acl_object_label {
++ char *filename;
++ ino_t inode;
++ dev_t device;
++ __u32 mode;
++
++ struct acl_subject_label *nested;
++ struct acl_object_label *globbed;
++
++ /* next two structures not used */
++
++ struct acl_object_label *prev;
++ struct acl_object_label *next;
++};
++
++struct acl_ip_label {
++ char *iface;
++ __u32 addr;
++ __u32 netmask;
++ __u16 low, high;
++ __u8 mode;
++ __u32 type;
++ __u32 proto[8];
++
++ /* next two structures not used */
++
++ struct acl_ip_label *prev;
++ struct acl_ip_label *next;
++};
++
++struct gr_arg {
++ struct user_acl_role_db role_db;
++ unsigned char pw[GR_PW_LEN];
++ unsigned char salt[GR_SALT_LEN];
++ unsigned char sum[GR_SHA_LEN];
++ unsigned char sp_role[GR_SPROLE_LEN];
++ struct sprole_pw *sprole_pws;
++ dev_t segv_device;
++ ino_t segv_inode;
++ uid_t segv_uid;
++ __u16 num_sprole_pws;
++ __u16 mode;
++};
++
++struct gr_arg_wrapper {
++ struct gr_arg *arg;
++ __u32 version;
++ __u32 size;
++};
++
++struct subject_map {
++ struct acl_subject_label *user;
++ struct acl_subject_label *kernel;
++ struct subject_map *prev;
++ struct subject_map *next;
++};
++
++struct acl_subj_map_db {
++ struct subject_map **s_hash;
++ __u32 s_size;
++};
++
++/* End Data Structures Section */
++
++/* Hash functions generated by empirical testing by Brad Spengler
++ Makes good use of the low bits of the inode. Generally 0-1 times
++ in loop for successful match. 0-3 for unsuccessful match.
++ Shift/add algorithm with modulus of table size and an XOR*/
++
++static __inline__ unsigned int
++rhash(const uid_t uid, const __u16 type, const unsigned int sz)
++{
++ return (((uid << type) + (uid ^ type)) % sz);
++}
++
++ static __inline__ unsigned int
++shash(const struct acl_subject_label *userp, const unsigned int sz)
++{
++ return ((const unsigned long)userp % sz);
++}
++
++static __inline__ unsigned int
++fhash(const ino_t ino, const dev_t dev, const unsigned int sz)
++{
++ return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz);
++}
++
++static __inline__ unsigned int
++nhash(const char *name, const __u16 len, const unsigned int sz)
++{
++ return full_name_hash(name, len) % sz;
++}
++
++#define FOR_EACH_ROLE_START(role,iter) \
++ role = NULL; \
++ iter = 0; \
++ while (iter < acl_role_set.r_size) { \
++ if (role == NULL) \
++ role = acl_role_set.r_hash[iter]; \
++ if (role == NULL) { \
++ iter++; \
++ continue; \
++ }
++
++#define FOR_EACH_ROLE_END(role,iter) \
++ role = role->next; \
++ if (role == NULL) \
++ iter++; \
++ }
++
++#define FOR_EACH_SUBJECT_START(role,subj,iter) \
++ subj = NULL; \
++ iter = 0; \
++ while (iter < role->subj_hash_size) { \
++ if (subj == NULL) \
++ subj = role->subj_hash[iter]; \
++ if (subj == NULL) { \
++ iter++; \
++ continue; \
++ }
++
++#define FOR_EACH_SUBJECT_END(subj,iter) \
++ subj = subj->next; \
++ if (subj == NULL) \
++ iter++; \
++ }
++
++
++#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
++ subj = role->hash->first; \
++ while (subj != NULL) {
++
++#define FOR_EACH_NESTED_SUBJECT_END(subj) \
++ subj = subj->next; \
++ }
++
++#endif
++
+diff -urNp linux-2.6.28.8/include/linux/gralloc.h linux-2.6.28.8/include/linux/gralloc.h
+--- linux-2.6.28.8/include/linux/gralloc.h 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/include/linux/gralloc.h 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,8 @@
++#ifndef __GRALLOC_H
++#define __GRALLOC_H
++
++void acl_free_all(void);
++int acl_alloc_stack_init(unsigned long size);
++void *acl_alloc(unsigned long len);
++
++#endif
+diff -urNp linux-2.6.28.8/include/linux/grdefs.h linux-2.6.28.8/include/linux/grdefs.h
+--- linux-2.6.28.8/include/linux/grdefs.h 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/include/linux/grdefs.h 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,131 @@
++#ifndef GRDEFS_H
++#define GRDEFS_H
++
++/* Begin grsecurity status declarations */
++
++enum {
++ GR_READY = 0x01,
++ GR_STATUS_INIT = 0x00 // disabled state
++};
++
++/* Begin ACL declarations */
++
++/* Role flags */
++
++enum {
++ GR_ROLE_USER = 0x0001,
++ GR_ROLE_GROUP = 0x0002,
++ GR_ROLE_DEFAULT = 0x0004,
++ GR_ROLE_SPECIAL = 0x0008,
++ GR_ROLE_AUTH = 0x0010,
++ GR_ROLE_NOPW = 0x0020,
++ GR_ROLE_GOD = 0x0040,
++ GR_ROLE_LEARN = 0x0080,
++ GR_ROLE_TPE = 0x0100,
++ GR_ROLE_DOMAIN = 0x0200,
++ GR_ROLE_PAM = 0x0400
++};
++
++/* ACL Subject and Object mode flags */
++enum {
++ GR_DELETED = 0x80000000
++};
++
++/* ACL Object-only mode flags */
++enum {
++ GR_READ = 0x00000001,
++ GR_APPEND = 0x00000002,
++ GR_WRITE = 0x00000004,
++ GR_EXEC = 0x00000008,
++ GR_FIND = 0x00000010,
++ GR_INHERIT = 0x00000020,
++ GR_SETID = 0x00000040,
++ GR_CREATE = 0x00000080,
++ GR_DELETE = 0x00000100,
++ GR_LINK = 0x00000200,
++ GR_AUDIT_READ = 0x00000400,
++ GR_AUDIT_APPEND = 0x00000800,
++ GR_AUDIT_WRITE = 0x00001000,
++ GR_AUDIT_EXEC = 0x00002000,
++ GR_AUDIT_FIND = 0x00004000,
++ GR_AUDIT_INHERIT= 0x00008000,
++ GR_AUDIT_SETID = 0x00010000,
++ GR_AUDIT_CREATE = 0x00020000,
++ GR_AUDIT_DELETE = 0x00040000,
++ GR_AUDIT_LINK = 0x00080000,
++ GR_PTRACERD = 0x00100000,
++ GR_NOPTRACE = 0x00200000,
++ GR_SUPPRESS = 0x00400000,
++ GR_NOLEARN = 0x00800000
++};
++
++#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
++ GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
++ GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
++
++/* ACL subject-only mode flags */
++enum {
++ GR_KILL = 0x00000001,
++ GR_VIEW = 0x00000002,
++ GR_PROTECTED = 0x00000004,
++ GR_LEARN = 0x00000008,
++ GR_OVERRIDE = 0x00000010,
++ /* just a placeholder, this mode is only used in userspace */
++ GR_DUMMY = 0x00000020,
++ GR_PROTSHM = 0x00000040,
++ GR_KILLPROC = 0x00000080,
++ GR_KILLIPPROC = 0x00000100,
++ /* just a placeholder, this mode is only used in userspace */
++ GR_NOTROJAN = 0x00000200,
++ GR_PROTPROCFD = 0x00000400,
++ GR_PROCACCT = 0x00000800,
++ GR_RELAXPTRACE = 0x00001000,
++ GR_NESTED = 0x00002000,
++ GR_INHERITLEARN = 0x00004000,
++ GR_PROCFIND = 0x00008000,
++ GR_POVERRIDE = 0x00010000,
++ GR_KERNELAUTH = 0x00020000,
++};
++
++enum {
++ GR_PAX_ENABLE_SEGMEXEC = 0x0001,
++ GR_PAX_ENABLE_PAGEEXEC = 0x0002,
++ GR_PAX_ENABLE_MPROTECT = 0x0004,
++ GR_PAX_ENABLE_RANDMMAP = 0x0008,
++ GR_PAX_ENABLE_EMUTRAMP = 0x0010,
++ GR_PAX_DISABLE_SEGMEXEC = 0x0100,
++ GR_PAX_DISABLE_PAGEEXEC = 0x0200,
++ GR_PAX_DISABLE_MPROTECT = 0x0400,
++ GR_PAX_DISABLE_RANDMMAP = 0x0800,
++ GR_PAX_DISABLE_EMUTRAMP = 0x1000,
++};
++
++enum {
++ GR_ID_USER = 0x01,
++ GR_ID_GROUP = 0x02,
++};
++
++enum {
++ GR_ID_ALLOW = 0x01,
++ GR_ID_DENY = 0x02,
++};
++
++#define GR_CRASH_RES 11
++#define GR_UIDTABLE_MAX 500
++
++/* begin resource learning section */
++enum {
++ GR_RLIM_CPU_BUMP = 60,
++ GR_RLIM_FSIZE_BUMP = 50000,
++ GR_RLIM_DATA_BUMP = 10000,
++ GR_RLIM_STACK_BUMP = 1000,
++ GR_RLIM_CORE_BUMP = 10000,
++ GR_RLIM_RSS_BUMP = 500000,
++ GR_RLIM_NPROC_BUMP = 1,
++ GR_RLIM_NOFILE_BUMP = 5,
++ GR_RLIM_MEMLOCK_BUMP = 50000,
++ GR_RLIM_AS_BUMP = 500000,
++ GR_RLIM_LOCKS_BUMP = 2
++};
++
++#endif
+diff -urNp linux-2.6.28.8/include/linux/grinternal.h linux-2.6.28.8/include/linux/grinternal.h
+--- linux-2.6.28.8/include/linux/grinternal.h 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/include/linux/grinternal.h 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,210 @@
++#ifndef __GRINTERNAL_H
++#define __GRINTERNAL_H
++
++#ifdef CONFIG_GRKERNSEC
++
++#include <linux/fs.h>
++#include <linux/gracl.h>
++#include <linux/grdefs.h>
++#include <linux/grmsg.h>
++
++void gr_add_learn_entry(const char *fmt, ...);
++__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
++ const struct vfsmount *mnt);
++__u32 gr_check_create(const struct dentry *new_dentry,
++ const struct dentry *parent,
++ const struct vfsmount *mnt, const __u32 mode);
++int gr_check_protected_task(const struct task_struct *task);
++__u32 to_gr_audit(const __u32 reqmode);
++int gr_set_acls(const int type);
++
++int gr_acl_is_enabled(void);
++char gr_roletype_to_char(void);
++
++void gr_handle_alertkill(struct task_struct *task);
++char *gr_to_filename(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++char *gr_to_filename1(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++char *gr_to_filename2(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++char *gr_to_filename3(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++
++extern int grsec_enable_link;
++extern int grsec_enable_fifo;
++extern int grsec_enable_execve;
++extern int grsec_enable_shm;
++extern int grsec_enable_execlog;
++extern int grsec_enable_signal;
++extern int grsec_enable_forkfail;
++extern int grsec_enable_time;
++extern int grsec_enable_chroot_shmat;
++extern int grsec_enable_chroot_findtask;
++extern int grsec_enable_chroot_mount;
++extern int grsec_enable_chroot_double;
++extern int grsec_enable_chroot_pivot;
++extern int grsec_enable_chroot_chdir;
++extern int grsec_enable_chroot_chmod;
++extern int grsec_enable_chroot_mknod;
++extern int grsec_enable_chroot_fchdir;
++extern int grsec_enable_chroot_nice;
++extern int grsec_enable_chroot_execlog;
++extern int grsec_enable_chroot_caps;
++extern int grsec_enable_chroot_sysctl;
++extern int grsec_enable_chroot_unix;
++extern int grsec_enable_tpe;
++extern int grsec_tpe_gid;
++extern int grsec_enable_tpe_all;
++extern int grsec_enable_sidcaps;
++extern int grsec_enable_socket_all;
++extern int grsec_socket_all_gid;
++extern int grsec_enable_socket_client;
++extern int grsec_socket_client_gid;
++extern int grsec_enable_socket_server;
++extern int grsec_socket_server_gid;
++extern int grsec_audit_gid;
++extern int grsec_enable_group;
++extern int grsec_enable_audit_ipc;
++extern int grsec_enable_audit_textrel;
++extern int grsec_enable_mount;
++extern int grsec_enable_chdir;
++extern int grsec_resource_logging;
++extern int grsec_lock;
++
++extern spinlock_t grsec_alert_lock;
++extern unsigned long grsec_alert_wtime;
++extern unsigned long grsec_alert_fyet;
++
++extern spinlock_t grsec_audit_lock;
++
++extern rwlock_t grsec_exec_file_lock;
++
++#define gr_task_fullpath(tsk) (tsk->exec_file ? \
++ gr_to_filename2(tsk->exec_file->f_path.dentry, \
++ tsk->exec_file->f_vfsmnt) : "/")
++
++#define gr_parent_task_fullpath(tsk) (tsk->parent->exec_file ? \
++ gr_to_filename3(tsk->parent->exec_file->f_path.dentry, \
++ tsk->parent->exec_file->f_vfsmnt) : "/")
++
++#define gr_task_fullpath0(tsk) (tsk->exec_file ? \
++ gr_to_filename(tsk->exec_file->f_path.dentry, \
++ tsk->exec_file->f_vfsmnt) : "/")
++
++#define gr_parent_task_fullpath0(tsk) (tsk->parent->exec_file ? \
++ gr_to_filename1(tsk->parent->exec_file->f_path.dentry, \
++ tsk->parent->exec_file->f_vfsmnt) : "/")
++
++#define proc_is_chrooted(tsk_a) ((tsk_a->pid > 1) && (tsk_a->fs != NULL) && \
++ ((tsk_a->fs->root.dentry->d_inode->i_sb->s_dev != \
++ tsk_a->nsproxy->pid_ns->child_reaper->fs->root.dentry->d_inode->i_sb->s_dev) || \
++ (tsk_a->fs->root.dentry->d_inode->i_ino != \
++ tsk_a->nsproxy->pid_ns->child_reaper->fs->root.dentry->d_inode->i_ino)))
++
++#define have_same_root(tsk_a,tsk_b) ((tsk_a->fs != NULL) && (tsk_b->fs != NULL) && \
++ (tsk_a->fs->root.dentry->d_inode->i_sb->s_dev == \
++ tsk_b->fs->root.dentry->d_inode->i_sb->s_dev) && \
++ (tsk_a->fs->root.dentry->d_inode->i_ino == \
++ tsk_b->fs->root.dentry->d_inode->i_ino))
++
++#define DEFAULTSECARGS(task) gr_task_fullpath(task), task->comm, \
++ task->pid, task->uid, \
++ task->euid, task->gid, task->egid, \
++ gr_parent_task_fullpath(task), \
++ task->parent->comm, task->parent->pid, \
++ task->parent->uid, task->parent->euid, \
++ task->parent->gid, task->parent->egid
++
++#define GR_CHROOT_CAPS {{ \
++ CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
++ CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
++ CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
++ CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
++ CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
++ CAP_TO_MASK(CAP_IPC_OWNER) , 0 }}
++
++#define security_learn(normal_msg,args...) \
++({ \
++ read_lock(&grsec_exec_file_lock); \
++ gr_add_learn_entry(normal_msg "\n", ## args); \
++ read_unlock(&grsec_exec_file_lock); \
++})
++
++enum {
++ GR_DO_AUDIT,
++ GR_DONT_AUDIT,
++ GR_DONT_AUDIT_GOOD
++};
++
++enum {
++ GR_TTYSNIFF,
++ GR_RBAC,
++ GR_RBAC_STR,
++ GR_STR_RBAC,
++ GR_RBAC_MODE2,
++ GR_RBAC_MODE3,
++ GR_FILENAME,
++ GR_SYSCTL_HIDDEN,
++ GR_NOARGS,
++ GR_ONE_INT,
++ GR_ONE_INT_TWO_STR,
++ GR_ONE_STR,
++ GR_STR_INT,
++ GR_TWO_INT,
++ GR_THREE_INT,
++ GR_FIVE_INT_TWO_STR,
++ GR_TWO_STR,
++ GR_THREE_STR,
++ GR_FOUR_STR,
++ GR_STR_FILENAME,
++ GR_FILENAME_STR,
++ GR_FILENAME_TWO_INT,
++ GR_FILENAME_TWO_INT_STR,
++ GR_TEXTREL,
++ GR_PTRACE,
++ GR_RESOURCE,
++ GR_CAP,
++ GR_SIG,
++ GR_CRASH1,
++ GR_CRASH2,
++ GR_PSACCT
++};
++
++#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
++#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
++#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
++#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
++#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
++#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
++#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3)
++#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
++#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
++#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
++#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
++#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
++#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
++#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
++#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
++#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2)
++#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
++#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
++#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
++#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
++#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
++#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
++#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str)
++#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
++#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
++#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
++#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
++#define gr_log_sig(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG, task, num)
++#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
++#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
++#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9)
++
++void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
++
++#endif
++
++#endif
+diff -urNp linux-2.6.28.8/include/linux/grmsg.h linux-2.6.28.8/include/linux/grmsg.h
+--- linux-2.6.28.8/include/linux/grmsg.h 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/include/linux/grmsg.h 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,108 @@
++#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u"
++#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%u.%u.%u.%u TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%u.%u.%u.%u TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u"
++#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
++#define GR_STOPMOD_MSG "denied modification of module state by "
++#define GR_IOPERM_MSG "denied use of ioperm() by "
++#define GR_IOPL_MSG "denied use of iopl() by "
++#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
++#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
++#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
++#define GR_KMEM_MSG "denied write of /dev/kmem by "
++#define GR_PORT_OPEN_MSG "denied open of /dev/port by "
++#define GR_MEM_WRITE_MSG "denied write of /dev/mem by "
++#define GR_MEM_MMAP_MSG "denied mmap write of /dev/[k]mem by "
++#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
++#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%u.%u.%u.%u"
++#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%u.%u.%u.%u"
++#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
++#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
++#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
++#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
++#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
++#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
++#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
++#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%u.%u.%u.%u %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
++#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
++#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
++#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
++#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
++#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
++#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
++#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
++#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
++#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
++#define GR_NPROC_MSG "denied overstep of process limit by "
++#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
++#define GR_EXEC_TPE_MSG "denied untrusted exec of %.950s by "
++#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
++#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
++#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
++#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
++#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
++#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
++#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
++#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
++#define GR_FCHMOD_ACL_MSG "%s fchmod of %.950s by "
++#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
++#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
++#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
++#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
++#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
++#define GR_INITF_ACL_MSG "init_variables() failed %s by "
++#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader"
++#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbaged by "
++#define GR_SHUTS_ACL_MSG "shutdown auth success for "
++#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
++#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
++#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
++#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
++#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
++#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
++#define GR_ENABLEF_ACL_MSG "unable to load %s for "
++#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
++#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
++#define GR_RELOADF_ACL_MSG "failed reload of %s for "
++#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
++#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
++#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
++#define GR_SPROLEF_ACL_MSG "special role %s failure for "
++#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
++#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
++#define GR_UNSPROLEF_ACL_MSG "special role unauth of %s failure for "
++#define GR_INVMODE_ACL_MSG "invalid mode %d by "
++#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
++#define GR_FAILFORK_MSG "failed fork with errno %d by "
++#define GR_NICE_CHROOT_MSG "denied priority change by "
++#define GR_UNISIGLOG_MSG "signal %d sent to "
++#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
++#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
++#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
++#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
++#define GR_TIME_MSG "time set by "
++#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
++#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
++#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
++#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
++#define GR_SOCK2_MSG "denied socket(%d,%.16s,%.16s) by "
++#define GR_BIND_MSG "denied bind() by "
++#define GR_CONNECT_MSG "denied connect() by "
++#define GR_BIND_ACL_MSG "denied bind() to %u.%u.%u.%u port %u sock type %.16s protocol %.16s by "
++#define GR_CONNECT_ACL_MSG "denied connect() to %u.%u.%u.%u port %u sock type %.16s protocol %.16s by "
++#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%u.%u.%u.%u\t%u\t%u\t%u\t%u\t%u.%u.%u.%u"
++#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
++#define GR_CAP_ACL_MSG "use of %s denied for "
++#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
++#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
++#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
++#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
++#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
++#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
++#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
++#define GR_MSGQ_AUDIT_MSG "message queue created by "
++#define GR_MSGQR_AUDIT_MSG "message queue of uid:%u euid:%u removed by "
++#define GR_SEM_AUDIT_MSG "semaphore created by "
++#define GR_SEMR_AUDIT_MSG "semaphore of uid:%u euid:%u removed by "
++#define GR_SHM_AUDIT_MSG "shared memory of size %d created by "
++#define GR_SHMR_AUDIT_MSG "shared memory of uid:%u euid:%u removed by "
++#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
++#define GR_TEXTREL_AUDIT_MSG "text relocation in %s, VMA:0x%08lx 0x%08lx by "
+diff -urNp linux-2.6.28.8/include/linux/grsecurity.h linux-2.6.28.8/include/linux/grsecurity.h
+--- linux-2.6.28.8/include/linux/grsecurity.h 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/include/linux/grsecurity.h 2009-02-21 09:37:49.000000000 -0500
+@@ -0,0 +1,200 @@
++#ifndef GR_SECURITY_H
++#define GR_SECURITY_H
++#include <linux/fs.h>
++#include <linux/binfmts.h>
++#include <linux/gracl.h>
++
++/* notify of brain-dead configs */
++#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
++#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
++#endif
++#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS)
++#error "CONFIG_PAX_NOEXEC enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled."
++#endif
++#if defined(CONFIG_PAX_ASLR) && (defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS)
++#error "CONFIG_PAX_ASLR enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled."
++#endif
++#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
++#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
++#endif
++#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
++#error "CONFIG_PAX enabled, but no PaX options are enabled."
++#endif
++
++void gr_handle_brute_attach(struct task_struct *p);
++void gr_handle_brute_check(void);
++
++char gr_roletype_to_char(void);
++
++int gr_check_user_change(int real, int effective, int fs);
++int gr_check_group_change(int real, int effective, int fs);
++
++void gr_del_task_from_ip_table(struct task_struct *p);
++
++int gr_pid_is_chrooted(struct task_struct *p);
++int gr_handle_chroot_nice(void);
++int gr_handle_chroot_sysctl(const int op);
++int gr_handle_chroot_setpriority(struct task_struct *p,
++ const int niceval);
++int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
++int gr_handle_chroot_chroot(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++void gr_handle_chroot_caps(struct task_struct *task);
++void gr_handle_chroot_chdir(struct path *path);
++int gr_handle_chroot_chmod(const struct dentry *dentry,
++ const struct vfsmount *mnt, const int mode);
++int gr_handle_chroot_mknod(const struct dentry *dentry,
++ const struct vfsmount *mnt, const int mode);
++int gr_handle_chroot_mount(const struct dentry *dentry,
++ const struct vfsmount *mnt,
++ const char *dev_name);
++int gr_handle_chroot_pivot(void);
++int gr_handle_chroot_unix(const pid_t pid);
++
++int gr_handle_rawio(const struct inode *inode);
++int gr_handle_nproc(void);
++
++void gr_handle_ioperm(void);
++void gr_handle_iopl(void);
++
++int gr_tpe_allow(const struct file *file);
++
++int gr_random_pid(void);
++
++void gr_log_forkfail(const int retval);
++void gr_log_timechange(void);
++void gr_log_signal(const int sig, const struct task_struct *t);
++void gr_log_chdir(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++void gr_log_chroot_exec(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++void gr_handle_exec_args(struct linux_binprm *bprm, char **argv);
++void gr_log_remount(const char *devname, const int retval);
++void gr_log_unmount(const char *devname, const int retval);
++void gr_log_mount(const char *from, const char *to, const int retval);
++void gr_log_msgget(const int ret, const int msgflg);
++void gr_log_msgrm(const uid_t uid, const uid_t cuid);
++void gr_log_semget(const int err, const int semflg);
++void gr_log_semrm(const uid_t uid, const uid_t cuid);
++void gr_log_shmget(const int err, const int shmflg, const size_t size);
++void gr_log_shmrm(const uid_t uid, const uid_t cuid);
++void gr_log_textrel(struct vm_area_struct *vma);
++
++int gr_handle_follow_link(const struct inode *parent,
++ const struct inode *inode,
++ const struct dentry *dentry,
++ const struct vfsmount *mnt);
++int gr_handle_fifo(const struct dentry *dentry,
++ const struct vfsmount *mnt,
++ const struct dentry *dir, const int flag,
++ const int acc_mode);
++int gr_handle_hardlink(const struct dentry *dentry,
++ const struct vfsmount *mnt,
++ struct inode *inode,
++ const int mode, const char *to);
++
++int gr_task_is_capable(struct task_struct *task, const int cap);
++int gr_is_capable_nolog(const int cap);
++void gr_learn_resource(const struct task_struct *task, const int limit,
++ const unsigned long wanted, const int gt);
++void gr_copy_label(struct task_struct *tsk);
++void gr_handle_crash(struct task_struct *task, const int sig);
++int gr_handle_signal(const struct task_struct *p, const int sig);
++int gr_check_crash_uid(const uid_t uid);
++int gr_check_protected_task(const struct task_struct *task);
++int gr_acl_handle_mmap(const struct file *file,
++ const unsigned long prot);
++int gr_acl_handle_mprotect(const struct file *file,
++ const unsigned long prot);
++int gr_check_hidden_task(const struct task_struct *tsk);
++__u32 gr_acl_handle_truncate(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++__u32 gr_acl_handle_utime(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++__u32 gr_acl_handle_access(const struct dentry *dentry,
++ const struct vfsmount *mnt, const int fmode);
++__u32 gr_acl_handle_fchmod(const struct dentry *dentry,
++ const struct vfsmount *mnt, mode_t mode);
++__u32 gr_acl_handle_chmod(const struct dentry *dentry,
++ const struct vfsmount *mnt, mode_t mode);
++__u32 gr_acl_handle_chown(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++int gr_handle_ptrace(struct task_struct *task, const long request);
++int gr_handle_proc_ptrace(struct task_struct *task);
++__u32 gr_acl_handle_execve(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++int gr_check_crash_exec(const struct file *filp);
++int gr_acl_is_enabled(void);
++void gr_set_kernel_label(struct task_struct *task);
++void gr_set_role_label(struct task_struct *task, const uid_t uid,
++ const gid_t gid);
++int gr_set_proc_label(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++__u32 gr_acl_handle_open(const struct dentry *dentry,
++ const struct vfsmount *mnt, const int fmode);
++__u32 gr_acl_handle_creat(const struct dentry *dentry,
++ const struct dentry *p_dentry,
++ const struct vfsmount *p_mnt, const int fmode,
++ const int imode);
++void gr_handle_create(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
++ const struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt,
++ const int mode);
++__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
++ const struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt);
++__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++void gr_handle_delete(const ino_t ino, const dev_t dev);
++__u32 gr_acl_handle_unlink(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
++ const struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt,
++ const char *from);
++__u32 gr_acl_handle_link(const struct dentry *new_dentry,
++ const struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt,
++ const struct dentry *old_dentry,
++ const struct vfsmount *old_mnt, const char *to);
++int gr_acl_handle_rename(struct dentry *new_dentry,
++ struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt,
++ struct dentry *old_dentry,
++ struct inode *old_parent_inode,
++ struct vfsmount *old_mnt, const char *newname);
++void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
++ struct dentry *old_dentry,
++ struct dentry *new_dentry,
++ struct vfsmount *mnt, const __u8 replace);
++__u32 gr_check_link(const struct dentry *new_dentry,
++ const struct dentry *parent_dentry,
++ const struct vfsmount *parent_mnt,
++ const struct dentry *old_dentry,
++ const struct vfsmount *old_mnt);
++int gr_acl_handle_filldir(const struct file *file, const char *name,
++ const unsigned int namelen, const ino_t ino);
++
++__u32 gr_acl_handle_unix(const struct dentry *dentry,
++ const struct vfsmount *mnt);
++void gr_acl_handle_exit(void);
++void gr_acl_handle_psacct(struct task_struct *task, const long code);
++int gr_acl_handle_procpidmem(const struct task_struct *task);
++
++#ifdef CONFIG_GRKERNSEC
++void gr_handle_mem_write(void);
++void gr_handle_kmem_write(void);
++void gr_handle_open_port(void);
++int gr_handle_mem_mmap(const unsigned long offset,
++ struct vm_area_struct *vma);
++
++extern int grsec_enable_dmesg;
++extern int grsec_enable_randsrc;
++extern int grsec_enable_shm;
++#endif
++
++#endif
+diff -urNp linux-2.6.28.8/include/linux/highmem.h linux-2.6.28.8/include/linux/highmem.h
+--- linux-2.6.28.8/include/linux/highmem.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/highmem.h 2009-03-07 10:35:39.000000000 -0500
+@@ -124,6 +124,18 @@ static inline void clear_highpage(struct
+ kunmap_atomic(kaddr, KM_USER0);
+ }
+
++static inline void sanitize_highpage(struct page *page)
++{
++ void *kaddr;
++ unsigned long flags;
++
++ local_irq_save(flags);
++ kaddr = kmap_atomic(page, KM_CLEARPAGE);
++ clear_page(kaddr);
++ kunmap_atomic(kaddr, KM_CLEARPAGE);
++ local_irq_restore(flags);
++}
++
+ static inline void zero_user_segments(struct page *page,
+ unsigned start1, unsigned end1,
+ unsigned start2, unsigned end2)
+diff -urNp linux-2.6.28.8/include/linux/jbd2.h linux-2.6.28.8/include/linux/jbd2.h
+--- linux-2.6.28.8/include/linux/jbd2.h 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/include/linux/jbd2.h 2009-03-07 10:29:51.000000000 -0500
+@@ -66,7 +66,7 @@ extern u8 jbd2_journal_enable_debug;
+ } \
+ } while (0)
+ #else
+-#define jbd_debug(f, a...) /**/
++#define jbd_debug(f, a...) do {} while (0)
+ #endif
+
+ static inline void *jbd2_alloc(size_t size, gfp_t flags)
+diff -urNp linux-2.6.28.8/include/linux/jbd.h linux-2.6.28.8/include/linux/jbd.h
+--- linux-2.6.28.8/include/linux/jbd.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/jbd.h 2009-02-21 09:37:49.000000000 -0500
+@@ -66,7 +66,7 @@ extern u8 journal_enable_debug;
+ } \
+ } while (0)
+ #else
+-#define jbd_debug(f, a...) /**/
++#define jbd_debug(f, a...) do {} while (0)
+ #endif
+
+ static inline void *jbd_alloc(size_t size, gfp_t flags)
+diff -urNp linux-2.6.28.8/include/linux/kvm_host.h linux-2.6.28.8/include/linux/kvm_host.h
+--- linux-2.6.28.8/include/linux/kvm_host.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/kvm_host.h 2009-02-21 09:37:49.000000000 -0500
+@@ -150,7 +150,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vc
+ void vcpu_load(struct kvm_vcpu *vcpu);
+ void vcpu_put(struct kvm_vcpu *vcpu);
+
+-int kvm_init(void *opaque, unsigned int vcpu_size,
++int kvm_init(const void *opaque, unsigned int vcpu_size,
+ struct module *module);
+ void kvm_exit(void);
+
+@@ -258,7 +258,7 @@ int kvm_arch_vcpu_ioctl_debug_guest(stru
+ struct kvm_debug_guest *dbg);
+ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
+
+-int kvm_arch_init(void *opaque);
++int kvm_arch_init(const void *opaque);
+ void kvm_arch_exit(void);
+
+ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
+diff -urNp linux-2.6.28.8/include/linux/libata.h linux-2.6.28.8/include/linux/libata.h
+--- linux-2.6.28.8/include/linux/libata.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/libata.h 2009-02-21 09:37:49.000000000 -0500
+@@ -64,11 +64,11 @@
+ #ifdef ATA_VERBOSE_DEBUG
+ #define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
+ #else
+-#define VPRINTK(fmt, args...)
++#define VPRINTK(fmt, args...) do {} while (0)
+ #endif /* ATA_VERBOSE_DEBUG */
+ #else
+-#define DPRINTK(fmt, args...)
+-#define VPRINTK(fmt, args...)
++#define DPRINTK(fmt, args...) do {} while (0)
++#define VPRINTK(fmt, args...) do {} while (0)
+ #endif /* ATA_DEBUG */
+
+ #define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __func__, ## args)
+diff -urNp linux-2.6.28.8/include/linux/mm.h linux-2.6.28.8/include/linux/mm.h
+--- linux-2.6.28.8/include/linux/mm.h 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/include/linux/mm.h 2009-03-07 10:29:51.000000000 -0500
+@@ -39,6 +39,7 @@ extern unsigned long mmap_min_addr;
+ #include <asm/page.h>
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
++#include <asm/mman.h>
+
+ #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n))
+
+@@ -115,6 +116,10 @@ extern unsigned int kobjsize(const void
+ #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */
+ #define VM_SAO 0x20000000 /* Strong Access Ordering (powerpc) */
+
++#ifdef CONFIG_PAX_PAGEEXEC
++#define VM_PAGEEXEC 0x40000000 /* vma->vm_page_prot needs special handling */
++#endif
++
+ #ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */
+ #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
+ #endif
+@@ -873,6 +878,8 @@ struct shrinker {
+ extern void register_shrinker(struct shrinker *);
+ extern void unregister_shrinker(struct shrinker *);
+
++pgprot_t vm_get_page_prot(unsigned long vm_flags);
++
+ int vma_wants_writenotify(struct vm_area_struct *vma);
+
+ extern pte_t *get_locked_pte(struct mm_struct *mm, unsigned long addr, spinlock_t **ptl);
+@@ -1141,6 +1148,7 @@ out:
+ }
+
+ extern int do_munmap(struct mm_struct *, unsigned long, size_t);
++extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
+
+ extern unsigned long do_brk(unsigned long, unsigned long);
+
+@@ -1193,6 +1201,10 @@ extern struct vm_area_struct * find_vma(
+ extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
+ struct vm_area_struct **pprev);
+
++extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
++extern void pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
++extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
++
+ /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
+ NULL if none. Assume start_addr < end_addr. */
+ static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
+@@ -1209,7 +1221,6 @@ static inline unsigned long vma_pages(st
+ return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ }
+
+-pgprot_t vm_get_page_prot(unsigned long vm_flags);
+ struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
+ int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
+ unsigned long pfn, unsigned long size, pgprot_t);
+@@ -1298,5 +1309,11 @@ int vmemmap_populate_basepages(struct pa
+ int vmemmap_populate(struct page *start_page, unsigned long pages, int node);
+ void vmemmap_populate_print_last(void);
+
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
++#else
++static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
++#endif
++
+ #endif /* __KERNEL__ */
+ #endif /* _LINUX_MM_H */
+diff -urNp linux-2.6.28.8/include/linux/mm_types.h linux-2.6.28.8/include/linux/mm_types.h
+--- linux-2.6.28.8/include/linux/mm_types.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/mm_types.h 2009-02-21 09:37:49.000000000 -0500
+@@ -157,6 +157,8 @@ struct vm_area_struct {
+ #ifdef CONFIG_NUMA
+ struct mempolicy *vm_policy; /* NUMA policy for the VMA */
+ #endif
++
++ struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
+ };
+
+ struct core_thread {
+@@ -256,6 +258,24 @@ struct mm_struct {
+ #ifdef CONFIG_MMU_NOTIFIER
+ struct mmu_notifier_mm *mmu_notifier_mm;
+ #endif
++
++#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) || defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++ unsigned long pax_flags;
++#endif
++
++#ifdef CONFIG_PAX_DLRESOLVE
++ unsigned long call_dl_resolve;
++#endif
++
++#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
++ unsigned long call_syscall;
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++ unsigned long delta_mmap; /* randomized offset */
++ unsigned long delta_stack; /* randomized offset */
++#endif
++
+ };
+
+ #endif /* _LINUX_MM_TYPES_H */
+diff -urNp linux-2.6.28.8/include/linux/module.h linux-2.6.28.8/include/linux/module.h
+--- linux-2.6.28.8/include/linux/module.h 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/module.h 2009-02-21 09:37:49.000000000 -0500
+@@ -283,16 +283,16 @@ struct module
+ int (*init)(void);
+
+ /* If this is non-NULL, vfree after init() returns */
+- void *module_init;
++ void *module_init_rx, *module_init_rw;
+
+ /* Here is the actual code + data, vfree'd on unload. */
+- void *module_core;
++ void *module_core_rx, *module_core_rw;
+
+ /* Here are the sizes of the init and core sections */
+- unsigned int init_size, core_size;
++ unsigned int init_size_rw, core_size_rw;
+
+ /* The size of the executable code in each section. */
+- unsigned int init_text_size, core_text_size;
++ unsigned int init_size_rx, core_size_rx;
+
+ /* The handle returned from unwind_add_table. */
+ void *unwind_info;
+diff -urNp linux-2.6.28.8/include/linux/moduleloader.h linux-2.6.28.8/include/linux/moduleloader.h
+--- linux-2.6.28.8/include/linux/moduleloader.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/moduleloader.h 2009-02-21 09:37:49.000000000 -0500
+@@ -17,9 +17,21 @@ int module_frob_arch_sections(Elf_Ehdr *
+ sections. Returns NULL on failure. */
+ void *module_alloc(unsigned long size);
+
++#ifdef CONFIG_PAX_KERNEXEC
++void *module_alloc_exec(unsigned long size);
++#else
++#define module_alloc_exec(x) module_alloc(x)
++#endif
++
+ /* Free memory returned from module_alloc. */
+ void module_free(struct module *mod, void *module_region);
+
++#ifdef CONFIG_PAX_KERNEXEC
++void module_free_exec(struct module *mod, void *module_region);
++#else
++#define module_free_exec(x, y) module_free(x, y)
++#endif
++
+ /* Apply the given relocation to the (simplified) ELF. Return -error
+ or 0. */
+ int apply_relocate(Elf_Shdr *sechdrs,
+diff -urNp linux-2.6.28.8/include/linux/namei.h linux-2.6.28.8/include/linux/namei.h
+--- linux-2.6.28.8/include/linux/namei.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/namei.h 2009-02-21 09:37:49.000000000 -0500
+@@ -21,7 +21,7 @@ struct nameidata {
+ unsigned int flags;
+ int last_type;
+ unsigned depth;
+- char *saved_names[MAX_NESTED_LINKS + 1];
++ const char *saved_names[MAX_NESTED_LINKS + 1];
+
+ /* Intent data */
+ union {
+@@ -84,12 +84,12 @@ extern int follow_up(struct vfsmount **,
+ extern struct dentry *lock_rename(struct dentry *, struct dentry *);
+ extern void unlock_rename(struct dentry *, struct dentry *);
+
+-static inline void nd_set_link(struct nameidata *nd, char *path)
++static inline void nd_set_link(struct nameidata *nd, const char *path)
+ {
+ nd->saved_names[nd->depth] = path;
+ }
+
+-static inline char *nd_get_link(struct nameidata *nd)
++static inline const char *nd_get_link(struct nameidata *nd)
+ {
+ return nd->saved_names[nd->depth];
+ }
+diff -urNp linux-2.6.28.8/include/linux/nodemask.h linux-2.6.28.8/include/linux/nodemask.h
+--- linux-2.6.28.8/include/linux/nodemask.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/nodemask.h 2009-02-21 09:37:49.000000000 -0500
+@@ -442,11 +442,11 @@ static inline int num_node_state(enum no
+
+ #define any_online_node(mask) \
+ ({ \
+- int node; \
+- for_each_node_mask(node, (mask)) \
+- if (node_online(node)) \
++ int __node; \
++ for_each_node_mask(__node, (mask)) \
++ if (node_online(__node)) \
+ break; \
+- node; \
++ __node; \
+ })
+
+ #define num_online_nodes() num_node_state(N_ONLINE)
+diff -urNp linux-2.6.28.8/include/linux/percpu.h linux-2.6.28.8/include/linux/percpu.h
+--- linux-2.6.28.8/include/linux/percpu.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/percpu.h 2009-02-21 09:37:49.000000000 -0500
+@@ -50,7 +50,7 @@
+ #endif
+
+ #define PERCPU_ENOUGH_ROOM \
+- (__per_cpu_end - __per_cpu_start + PERCPU_MODULE_RESERVE)
++ ((unsigned long)(__per_cpu_end - __per_cpu_start + PERCPU_MODULE_RESERVE))
+ #endif /* PERCPU_ENOUGH_ROOM */
+
+ /*
+diff -urNp linux-2.6.28.8/include/linux/poison.h linux-2.6.28.8/include/linux/poison.h
+--- linux-2.6.28.8/include/linux/poison.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/poison.h 2009-02-21 09:37:49.000000000 -0500
+@@ -7,8 +7,8 @@
+ * under normal circumstances, used to verify that nobody uses
+ * non-initialized list entries.
+ */
+-#define LIST_POISON1 ((void *) 0x00100100)
+-#define LIST_POISON2 ((void *) 0x00200200)
++#define LIST_POISON1 ((void *) 0xFF1001FFFF1001FFULL)
++#define LIST_POISON2 ((void *) 0xFF2002FFFF2002FFULL)
+
+ /********** include/linux/timer.h **********/
+ /*
+diff -urNp linux-2.6.28.8/include/linux/proc_fs.h linux-2.6.28.8/include/linux/proc_fs.h
+--- linux-2.6.28.8/include/linux/proc_fs.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/proc_fs.h 2009-02-21 09:37:49.000000000 -0500
+@@ -174,6 +174,19 @@ static inline struct proc_dir_entry *pro
+ return proc_create_data(name, mode, parent, proc_fops, NULL);
+ }
+
++static inline struct proc_dir_entry *proc_create_grsec(const char *name, mode_t mode,
++ struct proc_dir_entry *parent, const struct file_operations *proc_fops)
++{
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
++#else
++ return proc_create_data(name, mode, parent, proc_fops, NULL);
++#endif
++}
++
++
+ static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
+ mode_t mode, struct proc_dir_entry *base,
+ read_proc_t *read_proc, void * data)
+diff -urNp linux-2.6.28.8/include/linux/random.h linux-2.6.28.8/include/linux/random.h
+--- linux-2.6.28.8/include/linux/random.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/random.h 2009-02-21 09:37:49.000000000 -0500
+@@ -72,6 +72,11 @@ unsigned long randomize_range(unsigned l
+ u32 random32(void);
+ void srandom32(u32 seed);
+
++static inline unsigned long pax_get_random_long(void)
++{
++ return random32() + (sizeof(long) > 4 ? (unsigned long)random32() << 32 : 0);
++}
++
+ #endif /* __KERNEL___ */
+
+ #endif /* _LINUX_RANDOM_H */
+diff -urNp linux-2.6.28.8/include/linux/sched.h linux-2.6.28.8/include/linux/sched.h
+--- linux-2.6.28.8/include/linux/sched.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/sched.h 2009-02-21 09:37:49.000000000 -0500
+@@ -96,6 +96,7 @@ struct exec_domain;
+ struct futex_pi_state;
+ struct robust_list_head;
+ struct bio;
++struct linux_binprm;
+
+ /*
+ * List of flags we want to share for kernel threads,
+@@ -588,6 +589,15 @@ struct signal_struct {
+ unsigned audit_tty;
+ struct tty_audit_buf *tty_audit_buf;
+ #endif
++
++#ifdef CONFIG_GRKERNSEC
++ u32 curr_ip;
++ u32 gr_saddr;
++ u32 gr_daddr;
++ u16 gr_sport;
++ u16 gr_dport;
++ u8 used_accept:1;
++#endif
+ };
+
+ /* Context switch must be unlocked if interrupts are to be enabled */
+@@ -1073,7 +1083,7 @@ struct sched_rt_entity {
+
+ struct task_struct {
+ volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
+- void *stack;
++ struct thread_info *stack;
+ atomic_t usage;
+ unsigned int flags; /* per process flags, defined below */
+ unsigned int ptrace;
+@@ -1138,10 +1148,9 @@ struct task_struct {
+ pid_t pid;
+ pid_t tgid;
+
+-#ifdef CONFIG_CC_STACKPROTECTOR
+ /* Canary value for the -fstack-protector gcc feature */
+ unsigned long stack_canary;
+-#endif
++
+ /*
+ * pointers to (original) parent process, youngest child, younger sibling,
+ * older sibling, respectively. (p->father can be replaced with
+@@ -1169,8 +1178,8 @@ struct task_struct {
+ struct list_head thread_group;
+
+ struct completion *vfork_done; /* for vfork() */
+- int __user *set_child_tid; /* CLONE_CHILD_SETTID */
+- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
++ pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */
++ pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
+
+ cputime_t utime, stime, utimescaled, stimescaled;
+ cputime_t gtime;
+@@ -1355,8 +1364,64 @@ struct task_struct {
+ unsigned long default_timer_slack_ns;
+
+ struct list_head *scm_work_list;
++
++#ifdef CONFIG_GRKERNSEC
++ /* grsecurity */
++ struct acl_subject_label *acl;
++ struct acl_role_label *role;
++ struct file *exec_file;
++ u16 acl_role_id;
++ u8 acl_sp_role;
++ u8 is_writable;
++ u8 brute;
++#endif
++
+ };
+
++#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */
++#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */
++#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */
++#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */
++/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */
++#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */
++
++#ifdef CONFIG_PAX_SOFTMODE
++extern unsigned int pax_softmode;
++#endif
++
++extern int pax_check_flags(unsigned long *);
++
++/* if tsk != current then task_lock must be held on it */
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++static inline unsigned long pax_get_flags(struct task_struct *tsk)
++{
++ if (likely(tsk->mm))
++ return tsk->mm->pax_flags;
++ else
++ return 0UL;
++}
++
++/* if tsk != current then task_lock must be held on it */
++static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
++{
++ if (likely(tsk->mm)) {
++ tsk->mm->pax_flags = flags;
++ return 0;
++ }
++ return -EINVAL;
++}
++#endif
++
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++extern void pax_set_initial_flags(struct linux_binprm *bprm);
++#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
++extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
++#endif
++
++void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
++void pax_report_insns(void *pc, void *sp);
++void pax_report_refcount_overflow(struct pt_regs *regs);
++
+ /*
+ * Priority of a process goes from 0..MAX_PRIO-1, valid RT
+ * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH
+@@ -1899,7 +1964,7 @@ extern void __cleanup_sighand(struct sig
+ extern void exit_itimers(struct signal_struct *);
+ extern void flush_itimer_signals(void);
+
+-extern NORET_TYPE void do_group_exit(int);
++extern NORET_TYPE void do_group_exit(int) ATTRIB_NORET;
+
+ extern void daemonize(const char *, ...);
+ extern int allow_signal(int);
+@@ -2002,8 +2067,8 @@ static inline void unlock_task_sighand(s
+
+ #ifndef __HAVE_THREAD_FUNCTIONS
+
+-#define task_thread_info(task) ((struct thread_info *)(task)->stack)
+-#define task_stack_page(task) ((task)->stack)
++#define task_thread_info(task) ((task)->stack)
++#define task_stack_page(task) ((void *)(task)->stack)
+
+ static inline void setup_thread_stack(struct task_struct *p, struct task_struct *org)
+ {
+diff -urNp linux-2.6.28.8/include/linux/screen_info.h linux-2.6.28.8/include/linux/screen_info.h
+--- linux-2.6.28.8/include/linux/screen_info.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/screen_info.h 2009-02-21 09:37:49.000000000 -0500
+@@ -42,7 +42,8 @@ struct screen_info {
+ __u16 pages; /* 0x32 */
+ __u16 vesa_attributes; /* 0x34 */
+ __u32 capabilities; /* 0x36 */
+- __u8 _reserved[6]; /* 0x3a */
++ __u16 vesapm_size; /* 0x3a */
++ __u8 _reserved[4]; /* 0x3c */
+ } __attribute__((packed));
+
+ #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
+diff -urNp linux-2.6.28.8/include/linux/security.h linux-2.6.28.8/include/linux/security.h
+--- linux-2.6.28.8/include/linux/security.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/security.h 2009-02-21 09:37:49.000000000 -0500
+@@ -32,6 +32,7 @@
+ #include <linux/sched.h>
+ #include <linux/key.h>
+ #include <linux/xfrm.h>
++#include <linux/grsecurity.h>
+ #include <net/flow.h>
+
+ /* Maximum number of letters for an LSM name string */
+diff -urNp linux-2.6.28.8/include/linux/shm.h linux-2.6.28.8/include/linux/shm.h
+--- linux-2.6.28.8/include/linux/shm.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/shm.h 2009-02-21 09:37:49.000000000 -0500
+@@ -95,6 +95,10 @@ struct shmid_kernel /* private to the ke
+ pid_t shm_cprid;
+ pid_t shm_lprid;
+ struct user_struct *mlock_user;
++#ifdef CONFIG_GRKERNSEC
++ time_t shm_createtime;
++ pid_t shm_lapid;
++#endif
+ };
+
+ /* shm_mode upper byte flags */
+diff -urNp linux-2.6.28.8/include/linux/slab.h linux-2.6.28.8/include/linux/slab.h
+--- linux-2.6.28.8/include/linux/slab.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/slab.h 2009-02-21 09:37:49.000000000 -0500
+@@ -73,10 +73,9 @@
+ * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
+ * Both make kfree a no-op.
+ */
+-#define ZERO_SIZE_PTR ((void *)16)
++#define ZERO_SIZE_PTR ((void *)-1024L)
+
+-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
+- (unsigned long)ZERO_SIZE_PTR)
++#define ZERO_OR_NULL_PTR(x) (!(x) || (x) == ZERO_SIZE_PTR)
+
+ /*
+ * struct kmem_cache related prototypes
+diff -urNp linux-2.6.28.8/include/linux/sysctl.h linux-2.6.28.8/include/linux/sysctl.h
+--- linux-2.6.28.8/include/linux/sysctl.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/sysctl.h 2009-02-21 09:37:49.000000000 -0500
+@@ -165,7 +165,11 @@ enum
+ KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
+ };
+
+-
++#ifdef CONFIG_PAX_SOFTMODE
++enum {
++ PAX_SOFTMODE=1 /* PaX: disable/enable soft mode */
++};
++#endif
+
+ /* CTL_VM names: */
+ enum
+diff -urNp linux-2.6.28.8/include/linux/thread_info.h linux-2.6.28.8/include/linux/thread_info.h
+--- linux-2.6.28.8/include/linux/thread_info.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/thread_info.h 2009-02-21 09:37:49.000000000 -0500
+@@ -23,7 +23,7 @@ struct restart_block {
+ };
+ /* For futex_wait */
+ struct {
+- u32 *uaddr;
++ u32 __user *uaddr;
+ u32 val;
+ u32 flags;
+ u32 bitset;
+diff -urNp linux-2.6.28.8/include/linux/uaccess.h linux-2.6.28.8/include/linux/uaccess.h
+--- linux-2.6.28.8/include/linux/uaccess.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/uaccess.h 2009-02-21 09:37:49.000000000 -0500
+@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_
+ long ret; \
+ mm_segment_t old_fs = get_fs(); \
+ \
+- set_fs(KERNEL_DS); \
+ pagefault_disable(); \
++ set_fs(KERNEL_DS); \
+ ret = __get_user(retval, (__force typeof(retval) __user *)(addr)); \
+- pagefault_enable(); \
+ set_fs(old_fs); \
++ pagefault_enable(); \
+ ret; \
+ })
+
+diff -urNp linux-2.6.28.8/include/linux/vmalloc.h linux-2.6.28.8/include/linux/vmalloc.h
+--- linux-2.6.28.8/include/linux/vmalloc.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/linux/vmalloc.h 2009-02-21 09:37:49.000000000 -0500
+@@ -13,6 +13,11 @@ struct vm_area_struct; /* vma defining
+ #define VM_MAP 0x00000004 /* vmap()ed pages */
+ #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
+ #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++#define VM_KERNEXEC 0x00000020 /* allocate from executable kernel memory range */
++#endif
++
+ /* bits [20..32] reserved for arch specific ioremap internals */
+
+ /*
+diff -urNp linux-2.6.28.8/include/net/sctp/sctp.h linux-2.6.28.8/include/net/sctp/sctp.h
+--- linux-2.6.28.8/include/net/sctp/sctp.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/net/sctp/sctp.h 2009-02-21 09:37:49.000000000 -0500
+@@ -309,8 +309,8 @@ extern int sctp_debug_flag;
+
+ #else /* SCTP_DEBUG */
+
+-#define SCTP_DEBUG_PRINTK(whatever...)
+-#define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
++#define SCTP_DEBUG_PRINTK(whatever...) do {} while (0)
++#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) do {} while (0)
+ #define SCTP_ENABLE_DEBUG
+ #define SCTP_DISABLE_DEBUG
+ #define SCTP_ASSERT(expr, str, func)
+diff -urNp linux-2.6.28.8/include/sound/core.h linux-2.6.28.8/include/sound/core.h
+--- linux-2.6.28.8/include/sound/core.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/sound/core.h 2009-02-21 09:37:49.000000000 -0500
+@@ -405,7 +405,7 @@ static inline int __snd_bug_on(void)
+ */
+ #define snd_printdd(format, args...) snd_printk(format, ##args)
+ #else
+-#define snd_printdd(format, args...) /* nothing */
++#define snd_printdd(format, args...) do {} while (0)
+ #endif
+
+
+diff -urNp linux-2.6.28.8/include/video/uvesafb.h linux-2.6.28.8/include/video/uvesafb.h
+--- linux-2.6.28.8/include/video/uvesafb.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/include/video/uvesafb.h 2009-02-21 09:37:49.000000000 -0500
+@@ -175,6 +175,7 @@ struct uvesafb_par {
+ u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */
+ u8 pmi_setpal; /* PMI for palette changes */
+ u16 *pmi_base; /* protected mode interface location */
++ u8 *pmi_code; /* protected mode code location */
+ void *pmi_start;
+ void *pmi_pal;
+ u8 *vbe_state_orig; /*
+diff -urNp linux-2.6.28.8/init/do_mounts.c linux-2.6.28.8/init/do_mounts.c
+--- linux-2.6.28.8/init/do_mounts.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/do_mounts.c 2009-02-21 09:37:49.000000000 -0500
+@@ -214,11 +214,11 @@ static void __init get_fs_names(char *pa
+
+ static int __init do_mount_root(char *name, char *fs, int flags, void *data)
+ {
+- int err = sys_mount(name, "/root", fs, flags, data);
++ int err = sys_mount((char __user *)name, (char __user *)"/root", (char __user *)fs, flags, (void __user *)data);
+ if (err)
+ return err;
+
+- sys_chdir("/root");
++ sys_chdir((char __user *)"/root");
+ ROOT_DEV = current->fs->pwd.mnt->mnt_sb->s_dev;
+ printk("VFS: Mounted root (%s filesystem)%s.\n",
+ current->fs->pwd.mnt->mnt_sb->s_type->name,
+@@ -308,18 +308,18 @@ void __init change_floppy(char *fmt, ...
+ va_start(args, fmt);
+ vsprintf(buf, fmt, args);
+ va_end(args);
+- fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
++ fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
+ if (fd >= 0) {
+ sys_ioctl(fd, FDEJECT, 0);
+ sys_close(fd);
+ }
+ printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
+- fd = sys_open("/dev/console", O_RDWR, 0);
++ fd = sys_open((char __user *)"/dev/console", O_RDWR, 0);
+ if (fd >= 0) {
+ sys_ioctl(fd, TCGETS, (long)&termios);
+ termios.c_lflag &= ~ICANON;
+ sys_ioctl(fd, TCSETSF, (long)&termios);
+- sys_read(fd, &c, 1);
++ sys_read(fd, (char __user *)&c, 1);
+ termios.c_lflag |= ICANON;
+ sys_ioctl(fd, TCSETSF, (long)&termios);
+ sys_close(fd);
+@@ -406,7 +406,7 @@ void __init prepare_namespace(void)
+
+ mount_root();
+ out:
+- sys_mount(".", "/", NULL, MS_MOVE, NULL);
+- sys_chroot(".");
++ sys_mount((char __user *)".", (char __user *)"/", NULL, MS_MOVE, NULL);
++ sys_chroot((char __user *)".");
+ }
+
+diff -urNp linux-2.6.28.8/init/do_mounts.h linux-2.6.28.8/init/do_mounts.h
+--- linux-2.6.28.8/init/do_mounts.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/do_mounts.h 2009-02-21 09:37:49.000000000 -0500
+@@ -14,15 +14,15 @@ extern int root_mountflags;
+
+ static inline int create_dev(char *name, dev_t dev)
+ {
+- sys_unlink(name);
+- return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
++ sys_unlink((char __user *)name);
++ return sys_mknod((char __user *)name, S_IFBLK|0600, new_encode_dev(dev));
+ }
+
+ #if BITS_PER_LONG == 32
+ static inline u32 bstat(char *name)
+ {
+ struct stat64 stat;
+- if (sys_stat64(name, &stat) != 0)
++ if (sys_stat64((char __user *)name, (struct stat64 __user *)&stat) != 0)
+ return 0;
+ if (!S_ISBLK(stat.st_mode))
+ return 0;
+diff -urNp linux-2.6.28.8/init/do_mounts_initrd.c linux-2.6.28.8/init/do_mounts_initrd.c
+--- linux-2.6.28.8/init/do_mounts_initrd.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/do_mounts_initrd.c 2009-02-21 09:37:49.000000000 -0500
+@@ -32,7 +32,7 @@ static int __init do_linuxrc(void * shel
+ sys_close(old_fd);sys_close(root_fd);
+ sys_close(0);sys_close(1);sys_close(2);
+ sys_setsid();
+- (void) sys_open("/dev/console",O_RDWR,0);
++ (void) sys_open((const char __user *)"/dev/console",O_RDWR,0);
+ (void) sys_dup(0);
+ (void) sys_dup(0);
+ return kernel_execve(shell, argv, envp_init);
+@@ -47,13 +47,13 @@ static void __init handle_initrd(void)
+ create_dev("/dev/root.old", Root_RAM0);
+ /* mount initrd on rootfs' /root */
+ mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
+- sys_mkdir("/old", 0700);
+- root_fd = sys_open("/", 0, 0);
+- old_fd = sys_open("/old", 0, 0);
++ sys_mkdir((const char __user *)"/old", 0700);
++ root_fd = sys_open((const char __user *)"/", 0, 0);
++ old_fd = sys_open((const char __user *)"/old", 0, 0);
+ /* move initrd over / and chdir/chroot in initrd root */
+- sys_chdir("/root");
+- sys_mount(".", "/", NULL, MS_MOVE, NULL);
+- sys_chroot(".");
++ sys_chdir((const char __user *)"/root");
++ sys_mount((char __user *)".", (char __user *)"/", NULL, MS_MOVE, NULL);
++ sys_chroot((const char __user *)".");
+
+ /*
+ * In case that a resume from disk is carried out by linuxrc or one of
+@@ -70,15 +70,15 @@ static void __init handle_initrd(void)
+
+ /* move initrd to rootfs' /old */
+ sys_fchdir(old_fd);
+- sys_mount("/", ".", NULL, MS_MOVE, NULL);
++ sys_mount((char __user *)"/", (char __user *)".", NULL, MS_MOVE, NULL);
+ /* switch root and cwd back to / of rootfs */
+ sys_fchdir(root_fd);
+- sys_chroot(".");
++ sys_chroot((const char __user *)".");
+ sys_close(old_fd);
+ sys_close(root_fd);
+
+ if (new_decode_dev(real_root_dev) == Root_RAM0) {
+- sys_chdir("/old");
++ sys_chdir((const char __user *)"/old");
+ return;
+ }
+
+@@ -86,17 +86,17 @@ static void __init handle_initrd(void)
+ mount_root();
+
+ printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
+- error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
++ error = sys_mount((char __user *)"/old", (char __user *)"/root/initrd", NULL, MS_MOVE, NULL);
+ if (!error)
+ printk("okay\n");
+ else {
+- int fd = sys_open("/dev/root.old", O_RDWR, 0);
++ int fd = sys_open((const char __user *)"/dev/root.old", O_RDWR, 0);
+ if (error == -ENOENT)
+ printk("/initrd does not exist. Ignored.\n");
+ else
+ printk("failed\n");
+ printk(KERN_NOTICE "Unmounting old root\n");
+- sys_umount("/old", MNT_DETACH);
++ sys_umount((char __user *)"/old", MNT_DETACH);
+ printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
+ if (fd < 0) {
+ error = fd;
+@@ -119,11 +119,11 @@ int __init initrd_load(void)
+ * mounted in the normal path.
+ */
+ if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
+- sys_unlink("/initrd.image");
++ sys_unlink((const char __user *)"/initrd.image");
+ handle_initrd();
+ return 1;
+ }
+ }
+- sys_unlink("/initrd.image");
++ sys_unlink((const char __user *)"/initrd.image");
+ return 0;
+ }
+diff -urNp linux-2.6.28.8/init/do_mounts_md.c linux-2.6.28.8/init/do_mounts_md.c
+--- linux-2.6.28.8/init/do_mounts_md.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/do_mounts_md.c 2009-02-21 09:37:49.000000000 -0500
+@@ -171,7 +171,7 @@ static void __init md_setup_drive(void)
+ partitioned ? "_d" : "", minor,
+ md_setup_args[ent].device_names);
+
+- fd = sys_open(name, 0, 0);
++ fd = sys_open((char __user *)name, 0, 0);
+ if (fd < 0) {
+ printk(KERN_ERR "md: open failed - cannot start "
+ "array %s\n", name);
+@@ -234,7 +234,7 @@ static void __init md_setup_drive(void)
+ * array without it
+ */
+ sys_close(fd);
+- fd = sys_open(name, 0, 0);
++ fd = sys_open((char __user *)name, 0, 0);
+ sys_ioctl(fd, BLKRRPART, 0);
+ }
+ sys_close(fd);
+@@ -283,7 +283,7 @@ static void autodetect_raid(void)
+ printk(KERN_INFO "md: If you don't use raid, use raid=noautodetect\n");
+ while (driver_probe_done() < 0)
+ msleep(100);
+- fd = sys_open("/dev/md0", 0, 0);
++ fd = sys_open((char __user *)"/dev/md0", 0, 0);
+ if (fd >= 0) {
+ sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
+ sys_close(fd);
+diff -urNp linux-2.6.28.8/init/initramfs.c linux-2.6.28.8/init/initramfs.c
+--- linux-2.6.28.8/init/initramfs.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/initramfs.c 2009-02-21 09:37:49.000000000 -0500
+@@ -276,7 +276,7 @@ static int __init maybe_link(void)
+ if (nlink >= 2) {
+ char *old = find_link(major, minor, ino, mode, collected);
+ if (old)
+- return (sys_link(old, collected) < 0) ? -1 : 1;
++ return (sys_link((char __user *)old, (char __user *)collected) < 0) ? -1 : 1;
+ }
+ return 0;
+ }
+@@ -285,11 +285,11 @@ static void __init clean_path(char *path
+ {
+ struct stat st;
+
+- if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) {
++ if (!sys_newlstat((char __user *)path, (struct stat __user *)&st) && (st.st_mode^mode) & S_IFMT) {
+ if (S_ISDIR(st.st_mode))
+- sys_rmdir(path);
++ sys_rmdir((char __user *)path);
+ else
+- sys_unlink(path);
++ sys_unlink((char __user *)path);
+ }
+ }
+
+@@ -312,7 +312,7 @@ static int __init do_name(void)
+ int openflags = O_WRONLY|O_CREAT;
+ if (ml != 1)
+ openflags |= O_TRUNC;
+- wfd = sys_open(collected, openflags, mode);
++ wfd = sys_open((char __user *)collected, openflags, mode);
+
+ if (wfd >= 0) {
+ sys_fchown(wfd, uid, gid);
+@@ -322,16 +322,16 @@ static int __init do_name(void)
+ }
+ }
+ } else if (S_ISDIR(mode)) {
+- sys_mkdir(collected, mode);
+- sys_chown(collected, uid, gid);
+- sys_chmod(collected, mode);
++ sys_mkdir((char __user *)collected, mode);
++ sys_chown((char __user *)collected, uid, gid);
++ sys_chmod((char __user *)collected, mode);
+ dir_add(collected, mtime);
+ } else if (S_ISBLK(mode) || S_ISCHR(mode) ||
+ S_ISFIFO(mode) || S_ISSOCK(mode)) {
+ if (maybe_link() == 0) {
+- sys_mknod(collected, mode, rdev);
+- sys_chown(collected, uid, gid);
+- sys_chmod(collected, mode);
++ sys_mknod((char __user *)collected, mode, rdev);
++ sys_chown((char __user *)collected, uid, gid);
++ sys_chmod((char __user *)collected, mode);
+ do_utime(collected, mtime);
+ }
+ }
+@@ -341,7 +341,7 @@ static int __init do_name(void)
+ static int __init do_copy(void)
+ {
+ if (count >= body_len) {
+- sys_write(wfd, victim, body_len);
++ sys_write(wfd, (char __user *)victim, body_len);
+ sys_close(wfd);
+ do_utime(vcollected, mtime);
+ kfree(vcollected);
+@@ -349,7 +349,7 @@ static int __init do_copy(void)
+ state = SkipIt;
+ return 0;
+ } else {
+- sys_write(wfd, victim, count);
++ sys_write(wfd, (char __user *)victim, count);
+ body_len -= count;
+ eat(count);
+ return 1;
+@@ -360,8 +360,8 @@ static int __init do_symlink(void)
+ {
+ collected[N_ALIGN(name_len) + body_len] = '\0';
+ clean_path(collected, 0);
+- sys_symlink(collected + N_ALIGN(name_len), collected);
+- sys_lchown(collected, uid, gid);
++ sys_symlink((char __user *)collected + N_ALIGN(name_len), (char __user *)collected);
++ sys_lchown((char __user *)collected, uid, gid);
+ do_utime(collected, mtime);
+ state = SkipIt;
+ next_state = Reset;
+diff -urNp linux-2.6.28.8/init/Kconfig linux-2.6.28.8/init/Kconfig
+--- linux-2.6.28.8/init/Kconfig 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/Kconfig 2009-02-21 09:37:49.000000000 -0500
+@@ -572,6 +572,7 @@ config SYSCTL_SYSCALL
+ config KALLSYMS
+ bool "Load all symbols for debugging/ksymoops" if EMBEDDED
+ default y
++ depends on !GRKERNSEC_HIDESYM
+ help
+ Say Y here to let the kernel print out symbolic crash information and
+ symbolic stack backtraces. This increases the size of the kernel
+@@ -822,9 +823,9 @@ config HAVE_GENERIC_DMA_COHERENT
+
+ config SLABINFO
+ bool
+- depends on PROC_FS
++ depends on PROC_FS && !GRKERNSEC_PROC_ADD
+ depends on SLAB || SLUB_DEBUG
+- default y
++ default n
+
+ config RT_MUTEXES
+ boolean
+diff -urNp linux-2.6.28.8/init/main.c linux-2.6.28.8/init/main.c
+--- linux-2.6.28.8/init/main.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/main.c 2009-02-21 09:37:49.000000000 -0500
+@@ -104,6 +104,7 @@ static inline void mark_rodata_ro(void)
+ #ifdef CONFIG_TC
+ extern void tc_init(void);
+ #endif
++extern void grsecurity_init(void);
+
+ enum system_states system_state;
+ EXPORT_SYMBOL(system_state);
+@@ -190,6 +191,40 @@ static int __init set_reset_devices(char
+
+ __setup("reset_devices", set_reset_devices);
+
++#if defined(CONFIG_PAX_MEMORY_UDEREF) && defined(CONFIG_X86_32)
++static int __init setup_pax_nouderef(char *str)
++{
++ unsigned int cpu;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++
++ pax_open_kernel(cr0);
++#endif
++
++ for (cpu = 0; cpu < NR_CPUS; cpu++)
++ get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_DS].b = 0x00cf9300;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ return 1;
++}
++__setup("pax_nouderef", setup_pax_nouderef);
++#endif
++
++#ifdef CONFIG_PAX_SOFTMODE
++unsigned int pax_softmode;
++
++static int __init setup_pax_softmode(char *str)
++{
++ get_option(&str, &pax_softmode);
++ return 1;
++}
++__setup("pax_softmode=", setup_pax_softmode);
++#endif
++
+ static char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
+ char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
+ static const char *panic_later, *panic_param;
+@@ -388,7 +423,7 @@ static void __init setup_nr_cpu_ids(void
+ }
+
+ #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
+-unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
++unsigned long __per_cpu_offset[NR_CPUS] __read_only;
+
+ EXPORT_SYMBOL(__per_cpu_offset);
+
+@@ -704,6 +739,7 @@ int do_one_initcall(initcall_t fn)
+ {
+ int count = preempt_count();
+ ktime_t delta;
++ const char *msg1 = "", *msg2 = "";
+ char msgbuf[64];
+ struct boot_trace it;
+
+@@ -730,15 +766,15 @@ int do_one_initcall(initcall_t fn)
+ sprintf(msgbuf, "error code %d ", it.result);
+
+ if (preempt_count() != count) {
+- strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf));
++ msg1 = " preemption imbalance";
+ preempt_count() = count;
+ }
+ if (irqs_disabled()) {
+- strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
++ msg2 = " disabled interrupts";
+ local_irq_enable();
+ }
+- if (msgbuf[0]) {
+- printk("initcall %pF returned with %s\n", fn, msgbuf);
++ if (msgbuf[0] || *msg1 || *msg2) {
++ printk("initcall %pF returned with %s%s%s\n", fn, msgbuf, msg1, msg2);
+ }
+
+ return it.result;
+@@ -877,6 +913,8 @@ static int __init kernel_init(void * unu
+ prepare_namespace();
+ }
+
++ grsecurity_init();
++
+ /*
+ * Ok, we have completed the initial bootup, and
+ * we're essentially up and running. Get rid of the
+diff -urNp linux-2.6.28.8/init/noinitramfs.c linux-2.6.28.8/init/noinitramfs.c
+--- linux-2.6.28.8/init/noinitramfs.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/init/noinitramfs.c 2009-02-21 09:37:49.000000000 -0500
+@@ -29,7 +29,7 @@ static int __init default_rootfs(void)
+ {
+ int err;
+
+- err = sys_mkdir("/dev", 0755);
++ err = sys_mkdir((const char __user *)"/dev", 0755);
+ if (err < 0)
+ goto out;
+
+@@ -39,7 +39,7 @@ static int __init default_rootfs(void)
+ if (err < 0)
+ goto out;
+
+- err = sys_mkdir("/root", 0700);
++ err = sys_mkdir((const char __user *)"/root", 0700);
+ if (err < 0)
+ goto out;
+
+diff -urNp linux-2.6.28.8/ipc/ipc_sysctl.c linux-2.6.28.8/ipc/ipc_sysctl.c
+--- linux-2.6.28.8/ipc/ipc_sysctl.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/ipc/ipc_sysctl.c 2009-02-21 09:37:49.000000000 -0500
+@@ -267,7 +267,7 @@ static struct ctl_table ipc_kern_table[]
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static struct ctl_table ipc_root_table[] = {
+@@ -277,7 +277,7 @@ static struct ctl_table ipc_root_table[]
+ .mode = 0555,
+ .child = ipc_kern_table,
+ },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static int __init ipc_sysctl_init(void)
+diff -urNp linux-2.6.28.8/ipc/msg.c linux-2.6.28.8/ipc/msg.c
+--- linux-2.6.28.8/ipc/msg.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/ipc/msg.c 2009-02-21 09:37:49.000000000 -0500
+@@ -314,6 +314,7 @@ SYSCALL_DEFINE2(msgget, key_t, key, int,
+ struct ipc_namespace *ns;
+ struct ipc_ops msg_ops;
+ struct ipc_params msg_params;
++ long err;
+
+ ns = current->nsproxy->ipc_ns;
+
+@@ -324,7 +325,11 @@ SYSCALL_DEFINE2(msgget, key_t, key, int,
+ msg_params.key = key;
+ msg_params.flg = msgflg;
+
+- return ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params);
++ err = ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params);
++
++ gr_log_msgget(err, msgflg);
++
++ return err;
+ }
+
+ static inline unsigned long
+@@ -434,6 +439,7 @@ static int msgctl_down(struct ipc_namesp
+
+ switch (cmd) {
+ case IPC_RMID:
++ gr_log_msgrm(ipcp->uid, ipcp->cuid);
+ freeque(ns, ipcp);
+ goto out_up;
+ case IPC_SET:
+diff -urNp linux-2.6.28.8/ipc/sem.c linux-2.6.28.8/ipc/sem.c
+--- linux-2.6.28.8/ipc/sem.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/ipc/sem.c 2009-02-21 09:37:49.000000000 -0500
+@@ -313,6 +313,7 @@ SYSCALL_DEFINE3(semget, key_t, key, int,
+ struct ipc_namespace *ns;
+ struct ipc_ops sem_ops;
+ struct ipc_params sem_params;
++ long err;
+
+ ns = current->nsproxy->ipc_ns;
+
+@@ -327,7 +328,11 @@ SYSCALL_DEFINE3(semget, key_t, key, int,
+ sem_params.flg = semflg;
+ sem_params.u.nsems = nsems;
+
+- return ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params);
++ err = ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params);
++
++ gr_log_semget(err, semflg);
++
++ return err;
+ }
+
+ /*
+@@ -870,6 +875,7 @@ static int semctl_down(struct ipc_namesp
+
+ switch(cmd){
+ case IPC_RMID:
++ gr_log_semrm(ipcp->uid, ipcp->cuid);
+ freeary(ns, ipcp);
+ goto out_up;
+ case IPC_SET:
+diff -urNp linux-2.6.28.8/ipc/shm.c linux-2.6.28.8/ipc/shm.c
+--- linux-2.6.28.8/ipc/shm.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/ipc/shm.c 2009-02-21 09:37:49.000000000 -0500
+@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_name
+ static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
+ #endif
+
++#ifdef CONFIG_GRKERNSEC
++extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++ const time_t shm_createtime, const uid_t cuid,
++ const int shmid);
++extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++ const time_t shm_createtime);
++#endif
++
+ void shm_init_ns(struct ipc_namespace *ns)
+ {
+ ns->shm_ctlmax = SHMMAX;
+@@ -87,6 +95,8 @@ static void do_shm_rmid(struct ipc_names
+ struct shmid_kernel *shp;
+ shp = container_of(ipcp, struct shmid_kernel, shm_perm);
+
++ gr_log_shmrm(shp->shm_perm.uid, shp->shm_perm.cuid);
++
+ if (shp->shm_nattch){
+ shp->shm_perm.mode |= SHM_DEST;
+ /* Do not find it any more */
+@@ -392,6 +402,14 @@ static int newseg(struct ipc_namespace *
+ shp->shm_lprid = 0;
+ shp->shm_atim = shp->shm_dtim = 0;
+ shp->shm_ctim = get_seconds();
++#ifdef CONFIG_GRKERNSEC
++ {
++ struct timespec timeval;
++ do_posix_clock_monotonic_gettime(&timeval);
++
++ shp->shm_createtime = timeval.tv_sec;
++ }
++#endif
+ shp->shm_segsz = size;
+ shp->shm_nattch = 0;
+ shp->shm_file = file;
+@@ -445,6 +463,7 @@ SYSCALL_DEFINE3(shmget, key_t, key, size
+ struct ipc_namespace *ns;
+ struct ipc_ops shm_ops;
+ struct ipc_params shm_params;
++ long err;
+
+ ns = current->nsproxy->ipc_ns;
+
+@@ -456,7 +475,11 @@ SYSCALL_DEFINE3(shmget, key_t, key, size
+ shm_params.flg = shmflg;
+ shm_params.u.size = size;
+
+- return ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params);
++ err = ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params);
++
++ gr_log_shmget(err, shmflg, size);
++
++ return err;
+ }
+
+ static inline unsigned long copy_shmid_to_user(void __user *buf, struct shmid64_ds *in, int version)
+@@ -877,9 +900,21 @@ long do_shmat(int shmid, char __user *sh
+ if (err)
+ goto out_unlock;
+
++#ifdef CONFIG_GRKERNSEC
++ if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
++ shp->shm_perm.cuid, shmid) ||
++ !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
++ err = -EACCES;
++ goto out_unlock;
++ }
++#endif
++
+ path.dentry = dget(shp->shm_file->f_path.dentry);
+ path.mnt = shp->shm_file->f_path.mnt;
+ shp->shm_nattch++;
++#ifdef CONFIG_GRKERNSEC
++ shp->shm_lapid = current->pid;
++#endif
+ size = i_size_read(path.dentry->d_inode);
+ shm_unlock(shp);
+
+diff -urNp linux-2.6.28.8/kernel/acct.c linux-2.6.28.8/kernel/acct.c
+--- linux-2.6.28.8/kernel/acct.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/acct.c 2009-02-21 09:37:49.000000000 -0500
+@@ -573,7 +573,7 @@ static void do_acct_process(struct bsd_a
+ */
+ flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
+ current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
+- file->f_op->write(file, (char *)&ac,
++ file->f_op->write(file, (char __user *)&ac,
+ sizeof(acct_t), &file->f_pos);
+ current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim;
+ set_fs(fs);
+diff -urNp linux-2.6.28.8/kernel/capability.c linux-2.6.28.8/kernel/capability.c
+--- linux-2.6.28.8/kernel/capability.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/capability.c 2009-02-21 09:37:49.000000000 -0500
+@@ -498,10 +498,21 @@ SYSCALL_DEFINE2(capset, cap_user_header_
+ */
+ int capable(int cap)
+ {
+- if (has_capability(current, cap)) {
++ if (has_capability(current, cap) && gr_task_is_capable(current, cap)) {
+ current->flags |= PF_SUPERPRIV;
+ return 1;
+ }
+ return 0;
+ }
++
++int capable_nolog(int cap)
++{
++ if (has_capability(current, cap) && gr_is_capable_nolog(cap)) {
++ current->flags |= PF_SUPERPRIV;
++ return 1;
++ }
++ return 0;
++}
++
+ EXPORT_SYMBOL(capable);
++EXPORT_SYMBOL(capable_nolog);
+diff -urNp linux-2.6.28.8/kernel/configs.c linux-2.6.28.8/kernel/configs.c
+--- linux-2.6.28.8/kernel/configs.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/configs.c 2009-02-21 09:37:49.000000000 -0500
+@@ -73,8 +73,19 @@ static int __init ikconfig_init(void)
+ struct proc_dir_entry *entry;
+
+ /* create the current config file */
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
++ &ikconfig_file_ops);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
++ &ikconfig_file_ops);
++#endif
++#else
+ entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
+ &ikconfig_file_ops);
++#endif
++
+ if (!entry)
+ return -ENOMEM;
+
+diff -urNp linux-2.6.28.8/kernel/cpu.c linux-2.6.28.8/kernel/cpu.c
+--- linux-2.6.28.8/kernel/cpu.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/cpu.c 2009-02-21 09:37:49.000000000 -0500
+@@ -40,7 +40,7 @@ EXPORT_SYMBOL(cpu_possible_map);
+ /* Serializes the updates to cpu_online_map, cpu_present_map */
+ static DEFINE_MUTEX(cpu_add_remove_lock);
+
+-static __cpuinitdata RAW_NOTIFIER_HEAD(cpu_chain);
++static RAW_NOTIFIER_HEAD(cpu_chain);
+
+ /* If set, cpu_up and cpu_down will return -EBUSY and do nothing.
+ * Should always be manipulated under cpu_add_remove_lock
+diff -urNp linux-2.6.28.8/kernel/exit.c linux-2.6.28.8/kernel/exit.c
+--- linux-2.6.28.8/kernel/exit.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/exit.c 2009-03-07 04:29:14.000000000 -0500
+@@ -53,6 +53,10 @@
+ #include <asm/pgtable.h>
+ #include <asm/mmu_context.h>
+
++#ifdef CONFIG_GRKERNSEC
++extern rwlock_t grsec_exec_file_lock;
++#endif
++
+ static void exit_mm(struct task_struct * tsk);
+
+ static inline int task_detached(struct task_struct *p)
+@@ -163,6 +167,8 @@ void release_task(struct task_struct * p
+ struct task_struct *leader;
+ int zap_leader;
+ repeat:
++ gr_del_task_from_ip_table(p);
++
+ tracehook_prepare_release_task(p);
+ atomic_dec(&p->user->processes);
+ proc_flush_task(p);
+@@ -326,11 +332,22 @@ static void reparent_to_kthreadd(void)
+ {
+ write_lock_irq(&tasklist_lock);
+
++#ifdef CONFIG_GRKERNSEC
++ write_lock(&grsec_exec_file_lock);
++ if (current->exec_file) {
++ fput(current->exec_file);
++ current->exec_file = NULL;
++ }
++ write_unlock(&grsec_exec_file_lock);
++#endif
++
+ ptrace_unlink(current);
+ /* Reparent to init */
+ current->real_parent = current->parent = kthreadd_task;
+ list_move_tail(¤t->sibling, ¤t->real_parent->children);
+
++ gr_set_kernel_label(current);
++
+ /* Set the exit signal to SIGCHLD so we signal init on exit */
+ current->exit_signal = SIGCHLD;
+
+@@ -424,6 +441,17 @@ void daemonize(const char *name, ...)
+ vsnprintf(current->comm, sizeof(current->comm), name, args);
+ va_end(args);
+
++#ifdef CONFIG_GRKERNSEC
++ write_lock(&grsec_exec_file_lock);
++ if (current->exec_file) {
++ fput(current->exec_file);
++ current->exec_file = NULL;
++ }
++ write_unlock(&grsec_exec_file_lock);
++#endif
++
++ gr_set_kernel_label(current);
++
+ /*
+ * If we were started as result of loading a module, close all of the
+ * user space pages. We don't need them, and if we didn't close them
+@@ -1066,6 +1094,9 @@ NORET_TYPE void do_exit(long code)
+ tsk->exit_code = code;
+ taskstats_exit(tsk, group_dead);
+
++ gr_acl_handle_psacct(tsk, code);
++ gr_acl_handle_exit();
++
+ exit_mm(tsk);
+
+ if (group_dead)
+@@ -1272,7 +1303,7 @@ static int wait_task_zombie(struct task_
+ if (unlikely(options & WNOWAIT)) {
+ uid_t uid = p->uid;
+ int exit_code = p->exit_code;
+- int why, status;
++ int why;
+
+ get_task_struct(p);
+ read_unlock(&tasklist_lock);
+diff -urNp linux-2.6.28.8/kernel/fork.c linux-2.6.28.8/kernel/fork.c
+--- linux-2.6.28.8/kernel/fork.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/kernel/fork.c 2009-03-07 10:29:51.000000000 -0500
+@@ -236,7 +236,7 @@ static struct task_struct *dup_task_stru
+ setup_thread_stack(tsk, orig);
+
+ #ifdef CONFIG_CC_STACKPROTECTOR
+- tsk->stack_canary = get_random_int();
++ tsk->stack_canary = pax_get_random_long();
+ #endif
+
+ /* One for us, one for whoever does the "release_task()" (usually parent) */
+@@ -273,8 +273,8 @@ static int dup_mmap(struct mm_struct *mm
+ mm->locked_vm = 0;
+ mm->mmap = NULL;
+ mm->mmap_cache = NULL;
+- mm->free_area_cache = oldmm->mmap_base;
+- mm->cached_hole_size = ~0UL;
++ mm->free_area_cache = oldmm->free_area_cache;
++ mm->cached_hole_size = oldmm->cached_hole_size;
+ mm->map_count = 0;
+ cpus_clear(mm->cpu_vm_mask);
+ mm->mm_rb = RB_ROOT;
+@@ -311,6 +311,7 @@ static int dup_mmap(struct mm_struct *mm
+ tmp->vm_flags &= ~VM_LOCKED;
+ tmp->vm_mm = mm;
+ tmp->vm_next = NULL;
++ tmp->vm_mirror = NULL;
+ anon_vma_link(tmp);
+ file = tmp->vm_file;
+ if (file) {
+@@ -358,6 +359,31 @@ static int dup_mmap(struct mm_struct *mm
+ if (retval)
+ goto out;
+ }
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
++ struct vm_area_struct *mpnt_m;
++
++ for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
++ BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
++
++ if (!mpnt->vm_mirror)
++ continue;
++
++ if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
++ BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
++ mpnt->vm_mirror = mpnt_m;
++ } else {
++ BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
++ mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
++ mpnt_m->vm_mirror->vm_mirror = mpnt_m;
++ mpnt->vm_mirror->vm_mirror = mpnt;
++ }
++ }
++ BUG_ON(mpnt_m);
++ }
++#endif
++
+ /* a new mm has just been created */
+ arch_dup_mmap(oldmm, mm);
+ retval = 0;
+@@ -527,9 +553,11 @@ void mm_release(struct task_struct *tsk,
+ #ifdef CONFIG_FUTEX
+ if (unlikely(tsk->robust_list))
+ exit_robust_list(tsk);
++ tsk->robust_list = NULL;
+ #ifdef CONFIG_COMPAT
+ if (unlikely(tsk->compat_robust_list))
+ compat_exit_robust_list(tsk);
++ tsk->compat_robust_list = NULL;
+ #endif
+ #endif
+
+@@ -551,7 +579,7 @@ void mm_release(struct task_struct *tsk,
+ if (tsk->clear_child_tid
+ && !(tsk->flags & PF_SIGNALED)
+ && atomic_read(&mm->mm_users) > 1) {
+- u32 __user * tidptr = tsk->clear_child_tid;
++ pid_t __user * tidptr = tsk->clear_child_tid;
+ tsk->clear_child_tid = NULL;
+
+ /*
+@@ -559,7 +587,7 @@ void mm_release(struct task_struct *tsk,
+ * not set up a proper pointer then tough luck.
+ */
+ put_user(0, tidptr);
+- sys_futex(tidptr, FUTEX_WAKE, 1, NULL, NULL, 0);
++ sys_futex((u32 __user *)tidptr, FUTEX_WAKE, 1, NULL, NULL, 0);
+ }
+ }
+
+@@ -984,6 +1012,9 @@ static struct task_struct *copy_process(
+ DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
+ #endif
+ retval = -EAGAIN;
++
++ gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->user->processes), 0);
++
+ if (atomic_read(&p->user->processes) >=
+ p->signal->rlim[RLIMIT_NPROC].rlim_cur) {
+ if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
+@@ -1147,6 +1178,8 @@ static struct task_struct *copy_process(
+ goto bad_fork_free_pid;
+ }
+
++ gr_copy_label(p);
++
+ p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL;
+ /*
+ * Clear TID on mm_release()?
+@@ -1317,6 +1350,8 @@ bad_fork_cleanup_count:
+ bad_fork_free:
+ free_task(p);
+ fork_out:
++ gr_log_forkfail(retval);
++
+ return ERR_PTR(retval);
+ }
+
+@@ -1395,6 +1430,8 @@ long do_fork(unsigned long clone_flags,
+ if (clone_flags & CLONE_PARENT_SETTID)
+ put_user(nr, parent_tidptr);
+
++ gr_handle_brute_check();
++
+ if (clone_flags & CLONE_VFORK) {
+ p->vfork_done = &vfork;
+ init_completion(&vfork);
+diff -urNp linux-2.6.28.8/kernel/futex.c linux-2.6.28.8/kernel/futex.c
+--- linux-2.6.28.8/kernel/futex.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/futex.c 2009-02-21 09:37:49.000000000 -0500
+@@ -188,6 +188,11 @@ static int get_futex_key(u32 __user *uad
+ struct page *page;
+ int err;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
++ return -EFAULT;
++#endif
++
+ /*
+ * The futex address must be "naturally" aligned.
+ */
+@@ -214,8 +219,8 @@ static int get_futex_key(u32 __user *uad
+ * The futex is hashed differently depending on whether
+ * it's in a shared or private mapping. So check vma first.
+ */
+- vma = find_extend_vma(mm, address);
+- if (unlikely(!vma))
++ vma = find_vma(mm, address);
++ if (unlikely(!vma || address < vma->vm_start))
+ return -EFAULT;
+
+ /*
+@@ -1348,7 +1353,7 @@ static int futex_wait(u32 __user *uaddr,
+ struct restart_block *restart;
+ restart = ¤t_thread_info()->restart_block;
+ restart->fn = futex_wait_restart;
+- restart->futex.uaddr = (u32 *)uaddr;
++ restart->futex.uaddr = uaddr;
+ restart->futex.val = val;
+ restart->futex.time = abs_time->tv64;
+ restart->futex.bitset = bitset;
+@@ -1908,7 +1913,7 @@ retry:
+ */
+ static inline int fetch_robust_entry(struct robust_list __user **entry,
+ struct robust_list __user * __user *head,
+- int *pi)
++ unsigned int *pi)
+ {
+ unsigned long uentry;
+
+diff -urNp linux-2.6.28.8/kernel/irq/handle.c linux-2.6.28.8/kernel/irq/handle.c
+--- linux-2.6.28.8/kernel/irq/handle.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/irq/handle.c 2009-02-21 09:37:49.000000000 -0500
+@@ -57,7 +57,8 @@ struct irq_desc irq_desc[NR_IRQS] __cach
+ .depth = 1,
+ .lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock),
+ #ifdef CONFIG_SMP
+- .affinity = CPU_MASK_ALL
++ .affinity = CPU_MASK_ALL,
++ .cpu = 0,
+ #endif
+ }
+ };
+diff -urNp linux-2.6.28.8/kernel/kallsyms.c linux-2.6.28.8/kernel/kallsyms.c
+--- linux-2.6.28.8/kernel/kallsyms.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/kallsyms.c 2009-02-21 09:37:49.000000000 -0500
+@@ -62,6 +62,18 @@ static inline int is_kernel_text(unsigne
+
+ static inline int is_kernel(unsigned long addr)
+ {
++
++#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES)
++ if ((unsigned long)MODULES_VADDR <= ktla_ktva(addr) &&
++ ktla_ktva(addr) < (unsigned long)MODULES_END)
++ return 0;
++#endif
++
++#ifdef CONFIG_X86_32
++ if (is_kernel_inittext(addr))
++ return 1;
++#endif
++
+ if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
+ return 1;
+ return in_gate_area_no_task(addr);
+@@ -372,7 +384,6 @@ static unsigned long get_ksymbol_core(st
+
+ static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
+ {
+- iter->name[0] = '\0';
+ iter->nameoff = get_symbol_offset(new_pos);
+ iter->pos = new_pos;
+ }
+@@ -456,7 +467,7 @@ static int kallsyms_open(struct inode *i
+ struct kallsym_iter *iter;
+ int ret;
+
+- iter = kmalloc(sizeof(*iter), GFP_KERNEL);
++ iter = kzalloc(sizeof(*iter), GFP_KERNEL);
+ if (!iter)
+ return -ENOMEM;
+ reset_iter(iter, 0);
+@@ -478,7 +489,15 @@ static const struct file_operations kall
+
+ static int __init kallsyms_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ proc_create("kallsyms", S_IFREG | S_IRUSR, NULL, &kallsyms_operations);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ proc_create("kallsyms", S_IFREG | S_IRUSR | S_IRGRP, NULL, &kallsyms_operations);
++#endif
++#else
+ proc_create("kallsyms", 0444, NULL, &kallsyms_operations);
++#endif
+ return 0;
+ }
+ __initcall(kallsyms_init);
+diff -urNp linux-2.6.28.8/kernel/kmod.c linux-2.6.28.8/kernel/kmod.c
+--- linux-2.6.28.8/kernel/kmod.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/kmod.c 2009-02-21 09:37:49.000000000 -0500
+@@ -108,7 +108,7 @@ int request_module(const char *fmt, ...)
+ return -ENOMEM;
+ }
+
+- ret = call_usermodehelper(modprobe_path, argv, envp, 1);
++ ret = call_usermodehelper(modprobe_path, argv, envp, UMH_WAIT_PROC);
+ atomic_dec(&kmod_concurrent);
+ return ret;
+ }
+diff -urNp linux-2.6.28.8/kernel/kprobes.c linux-2.6.28.8/kernel/kprobes.c
+--- linux-2.6.28.8/kernel/kprobes.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/kprobes.c 2009-02-21 09:37:49.000000000 -0500
+@@ -182,7 +182,7 @@ kprobe_opcode_t __kprobes *get_insn_slot
+ * kernel image and loaded module images reside. This is required
+ * so x86_64 can correctly handle the %rip-relative fixups.
+ */
+- kip->insns = module_alloc(PAGE_SIZE);
++ kip->insns = module_alloc_exec(PAGE_SIZE);
+ if (!kip->insns) {
+ kfree(kip);
+ return NULL;
+@@ -214,7 +214,7 @@ static int __kprobes collect_one_slot(st
+ hlist_add_head(&kip->hlist,
+ &kprobe_insn_pages);
+ } else {
+- module_free(NULL, kip->insns);
++ module_free_exec(NULL, kip->insns);
+ kfree(kip);
+ }
+ return 1;
+diff -urNp linux-2.6.28.8/kernel/lockdep.c linux-2.6.28.8/kernel/lockdep.c
+--- linux-2.6.28.8/kernel/lockdep.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/lockdep.c 2009-02-21 09:37:49.000000000 -0500
+@@ -627,6 +627,10 @@ static int static_obj(void *obj)
+ int i;
+ #endif
+
++#ifdef CONFIG_PAX_KERNEXEC
++ start = (unsigned long )&_data;
++#endif
++
+ /*
+ * static variable?
+ */
+@@ -638,9 +642,12 @@ static int static_obj(void *obj)
+ * percpu var?
+ */
+ for_each_possible_cpu(i) {
++#ifdef CONFIG_X86_32
++ start = per_cpu_offset(i);
++#else
+ start = (unsigned long) &__per_cpu_start + per_cpu_offset(i);
+- end = (unsigned long) &__per_cpu_start + PERCPU_ENOUGH_ROOM
+- + per_cpu_offset(i);
++#endif
++ end = start + PERCPU_ENOUGH_ROOM;
+
+ if ((addr >= start) && (addr < end))
+ return 1;
+diff -urNp linux-2.6.28.8/kernel/module.c linux-2.6.28.8/kernel/module.c
+--- linux-2.6.28.8/kernel/module.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/module.c 2009-02-21 09:37:50.000000000 -0500
+@@ -47,6 +47,11 @@
+ #include <linux/rculist.h>
+ #include <asm/uaccess.h>
+ #include <asm/cacheflush.h>
++
++#ifdef CONFIG_PAX_KERNEXEC
++#include <asm/desc.h>
++#endif
++
+ #include <linux/license.h>
+ #include <asm/sections.h>
+ #include <linux/tracepoint.h>
+@@ -76,7 +81,10 @@ static DECLARE_WAIT_QUEUE_HEAD(module_wq
+ static BLOCKING_NOTIFIER_HEAD(module_notify_list);
+
+ /* Bounds of module allocation, for speeding __module_text_address */
+-static unsigned long module_addr_min = -1UL, module_addr_max = 0;
++static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
++static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
++
++extern int gr_check_modstop(void);
+
+ int register_module_notifier(struct notifier_block * nb)
+ {
+@@ -245,7 +253,7 @@ static bool each_symbol(bool (*fn)(const
+ return true;
+
+ list_for_each_entry_rcu(mod, &modules, list) {
+- struct symsearch arr[] = {
++ struct symsearch modarr[] = {
+ { mod->syms, mod->syms + mod->num_syms, mod->crcs,
+ NOT_GPL_ONLY, false },
+ { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
+@@ -267,7 +275,7 @@ static bool each_symbol(bool (*fn)(const
+ #endif
+ };
+
+- if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
++ if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
+ return true;
+ }
+ return false;
+@@ -403,6 +411,8 @@ static inline unsigned int block_size(in
+ return val;
+ }
+
++EXPORT_SYMBOL(__per_cpu_start);
++
+ static void *percpu_modalloc(unsigned long size, unsigned long align,
+ const char *name)
+ {
+@@ -410,7 +420,7 @@ static void *percpu_modalloc(unsigned lo
+ unsigned int i;
+ void *ptr;
+
+- if (align > PAGE_SIZE) {
++ if (align-1 >= PAGE_SIZE) {
+ printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n",
+ name, align, PAGE_SIZE);
+ align = PAGE_SIZE;
+@@ -492,7 +502,11 @@ static void percpu_modcopy(void *pcpudes
+ int cpu;
+
+ for_each_possible_cpu(cpu)
++#ifdef CONFIG_X86_32
++ memcpy(pcpudest + __per_cpu_offset[cpu], from, size);
++#else
+ memcpy(pcpudest + per_cpu_offset(cpu), from, size);
++#endif
+ }
+
+ static int percpu_modinit(void)
+@@ -750,6 +764,9 @@ SYSCALL_DEFINE2(delete_module, const cha
+ char name[MODULE_NAME_LEN];
+ int ret, forced = 0;
+
++ if (gr_check_modstop())
++ return -EPERM;
++
+ if (!capable(CAP_SYS_MODULE))
+ return -EPERM;
+
+@@ -1448,19 +1465,22 @@ static void free_module(struct module *m
+ module_unload_free(mod);
+
+ /* release any pointers to mcount in this module */
+- ftrace_release(mod->module_core, mod->core_size);
++ ftrace_release(mod->module_core_rx, mod->core_size_rx);
+
+ /* This may be NULL, but that's OK */
+- module_free(mod, mod->module_init);
++ module_free(mod, mod->module_init_rw);
++ module_free_exec(mod, mod->module_init_rx);
+ kfree(mod->args);
+ if (mod->percpu)
+ percpu_modfree(mod->percpu);
+
+ /* Free lock-classes: */
+- lockdep_free_key_range(mod->module_core, mod->core_size);
++ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
++ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
+
+ /* Finally, free the core (containing the module structure) */
+- module_free(mod, mod->module_core);
++ module_free_exec(mod, mod->module_core_rx);
++ module_free(mod, mod->module_core_rw);
+ }
+
+ void *__symbol_get(const char *symbol)
+@@ -1526,10 +1546,14 @@ static int simplify_symbols(Elf_Shdr *se
+ struct module *mod)
+ {
+ Elf_Sym *sym = (void *)sechdrs[symindex].sh_addr;
+- unsigned long secbase;
++ unsigned long secbase, symbol;
+ unsigned int i, n = sechdrs[symindex].sh_size / sizeof(Elf_Sym);
+ int ret = 0;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ for (i = 1; i < n; i++) {
+ switch (sym[i].st_shndx) {
+ case SHN_COMMON:
+@@ -1548,10 +1572,19 @@ static int simplify_symbols(Elf_Shdr *se
+ break;
+
+ case SHN_UNDEF:
+- sym[i].st_value
+- = resolve_symbol(sechdrs, versindex,
++ symbol = resolve_symbol(sechdrs, versindex,
+ strtab + sym[i].st_name, mod);
+
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ sym[i].st_value = symbol;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ /* Ok if resolved. */
+ if (!IS_ERR_VALUE(sym[i].st_value))
+ break;
+@@ -1566,11 +1599,27 @@ static int simplify_symbols(Elf_Shdr *se
+
+ default:
+ /* Divert to percpu allocation if a percpu var. */
+- if (sym[i].st_shndx == pcpuindex)
++ if (sym[i].st_shndx == pcpuindex) {
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
++ secbase = (unsigned long)mod->percpu - (unsigned long)__per_cpu_start;
++#else
+ secbase = (unsigned long)mod->percpu;
+- else
++#endif
++
++ } else
+ secbase = sechdrs[sym[i].st_shndx].sh_addr;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ sym[i].st_value += secbase;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
+ break;
+ }
+ }
+@@ -1622,11 +1671,12 @@ static void layout_sections(struct modul
+ || strncmp(secstrings + s->sh_name,
+ ".init", 5) == 0)
+ continue;
+- s->sh_entsize = get_offset(&mod->core_size, s);
++ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
++ s->sh_entsize = get_offset(&mod->core_size_rw, s);
++ else
++ s->sh_entsize = get_offset(&mod->core_size_rx, s);
+ DEBUGP("\t%s\n", secstrings + s->sh_name);
+ }
+- if (m == 0)
+- mod->core_text_size = mod->core_size;
+ }
+
+ DEBUGP("Init section allocation order:\n");
+@@ -1640,12 +1690,13 @@ static void layout_sections(struct modul
+ || strncmp(secstrings + s->sh_name,
+ ".init", 5) != 0)
+ continue;
+- s->sh_entsize = (get_offset(&mod->init_size, s)
+- | INIT_OFFSET_MASK);
++ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
++ s->sh_entsize = get_offset(&mod->init_size_rw, s);
++ else
++ s->sh_entsize = get_offset(&mod->init_size_rx, s);
++ s->sh_entsize |= INIT_OFFSET_MASK;
+ DEBUGP("\t%s\n", secstrings + s->sh_name);
+ }
+- if (m == 0)
+- mod->init_text_size = mod->init_size;
+ }
+ }
+
+@@ -1785,14 +1836,31 @@ static void add_kallsyms(struct module *
+ {
+ unsigned int i;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ mod->symtab = (void *)sechdrs[symindex].sh_addr;
+ mod->num_symtab = sechdrs[symindex].sh_size / sizeof(Elf_Sym);
+ mod->strtab = (void *)sechdrs[strindex].sh_addr;
+
+ /* Set types up while we still have access to sections. */
+- for (i = 0; i < mod->num_symtab; i++)
+- mod->symtab[i].st_info
+- = elf_type(&mod->symtab[i], sechdrs, secstrings, mod);
++
++ for (i = 0; i < mod->num_symtab; i++) {
++ char type = elf_type(&mod->symtab[i], sechdrs, secstrings, mod);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ mod->symtab[i].st_info = type;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ }
++
+ }
+ #else
+ static inline void add_kallsyms(struct module *mod,
+@@ -1819,16 +1887,30 @@ static void dynamic_printk_setup(struct
+ #endif /* CONFIG_DYNAMIC_PRINTK_DEBUG */
+ }
+
+-static void *module_alloc_update_bounds(unsigned long size)
++static void *module_alloc_update_bounds_rw(unsigned long size)
+ {
+ void *ret = module_alloc(size);
+
+ if (ret) {
+ /* Update module bounds. */
+- if ((unsigned long)ret < module_addr_min)
+- module_addr_min = (unsigned long)ret;
+- if ((unsigned long)ret + size > module_addr_max)
+- module_addr_max = (unsigned long)ret + size;
++ if ((unsigned long)ret < module_addr_min_rw)
++ module_addr_min_rw = (unsigned long)ret;
++ if ((unsigned long)ret + size > module_addr_max_rw)
++ module_addr_max_rw = (unsigned long)ret + size;
++ }
++ return ret;
++}
++
++static void *module_alloc_update_bounds_rx(unsigned long size)
++{
++ void *ret = module_alloc_exec(size);
++
++ if (ret) {
++ /* Update module bounds. */
++ if ((unsigned long)ret < module_addr_min_rx)
++ module_addr_min_rx = (unsigned long)ret;
++ if ((unsigned long)ret + size > module_addr_max_rx)
++ module_addr_max_rx = (unsigned long)ret + size;
+ }
+ return ret;
+ }
+@@ -1856,6 +1938,10 @@ static noinline struct module *load_modu
+ unsigned long *mseg;
+ mm_segment_t old_fs;
+
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
++
+ DEBUGP("load_module: umod=%p, len=%lu, uargs=%p\n",
+ umod, len, uargs);
+ if (len < sizeof(*hdr))
+@@ -2010,22 +2096,57 @@ static noinline struct module *load_modu
+ layout_sections(mod, hdr, sechdrs, secstrings);
+
+ /* Do the allocs. */
+- ptr = module_alloc_update_bounds(mod->core_size);
++ ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
+ if (!ptr) {
+ err = -ENOMEM;
+ goto free_percpu;
+ }
+- memset(ptr, 0, mod->core_size);
+- mod->module_core = ptr;
++ memset(ptr, 0, mod->core_size_rw);
++ mod->module_core_rw = ptr;
+
+- ptr = module_alloc_update_bounds(mod->init_size);
+- if (!ptr && mod->init_size) {
++ ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
++ if (!ptr && mod->init_size_rw) {
+ err = -ENOMEM;
+- goto free_core;
++ goto free_core_rw;
+ }
+- memset(ptr, 0, mod->init_size);
+- mod->module_init = ptr;
++ memset(ptr, 0, mod->init_size_rw);
++ mod->module_init_rw = ptr;
++
++ ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
++ if (!ptr) {
++ err = -ENOMEM;
++ goto free_init_rw;
++ }
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
+
++ memset(ptr, 0, mod->core_size_rx);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ mod->module_core_rx = ptr;
++
++ ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
++ if (!ptr && mod->init_size_rx) {
++ err = -ENOMEM;
++ goto free_core_rx;
++ }
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
++ memset(ptr, 0, mod->init_size_rx);
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ mod->module_init_rx = ptr;
+ /* Transfer each section which specifies SHF_ALLOC */
+ DEBUGP("final section addresses:\n");
+ for (i = 0; i < hdr->e_shnum; i++) {
+@@ -2034,17 +2155,41 @@ static noinline struct module *load_modu
+ if (!(sechdrs[i].sh_flags & SHF_ALLOC))
+ continue;
+
+- if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK)
+- dest = mod->module_init
+- + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK);
+- else
+- dest = mod->module_core + sechdrs[i].sh_entsize;
++ if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK) {
++ if ((sechdrs[i].sh_flags & SHF_WRITE) || !(sechdrs[i].sh_flags & SHF_ALLOC))
++ dest = mod->module_init_rw
++ + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK);
++ else
++ dest = mod->module_init_rx
++ + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK);
++ } else {
++ if ((sechdrs[i].sh_flags & SHF_WRITE) || !(sechdrs[i].sh_flags & SHF_ALLOC))
++ dest = mod->module_core_rw + sechdrs[i].sh_entsize;
++ else
++ dest = mod->module_core_rx + sechdrs[i].sh_entsize;
++ }
++
++ if (sechdrs[i].sh_type != SHT_NOBITS) {
+
+- if (sechdrs[i].sh_type != SHT_NOBITS)
+- memcpy(dest, (void *)sechdrs[i].sh_addr,
+- sechdrs[i].sh_size);
++#ifdef CONFIG_PAX_KERNEXEC
++ if (!(sechdrs[i].sh_flags & SHF_WRITE) && (sechdrs[i].sh_flags & SHF_ALLOC)) {
++ pax_open_kernel(cr0);
++ memcpy(dest, (void *)sechdrs[i].sh_addr, sechdrs[i].sh_size);
++ pax_close_kernel(cr0);
++ } else
++#endif
++
++ memcpy(dest, (void *)sechdrs[i].sh_addr, sechdrs[i].sh_size);
++ }
+ /* Update sh_addr to point to copy in image. */
+- sechdrs[i].sh_addr = (unsigned long)dest;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ if (sechdrs[i].sh_flags & SHF_EXECINSTR)
++ sechdrs[i].sh_addr = ktva_ktla((unsigned long)dest);
++ else
++#endif
++
++ sechdrs[i].sh_addr = (unsigned long)dest;
+ DEBUGP("\t0x%lx %s\n", sechdrs[i].sh_addr, secstrings + sechdrs[i].sh_name);
+ }
+ /* Module has been moved. */
+@@ -2144,8 +2289,8 @@ static noinline struct module *load_modu
+
+ /* Now do relocations. */
+ for (i = 1; i < hdr->e_shnum; i++) {
+- const char *strtab = (char *)sechdrs[strindex].sh_addr;
+ unsigned int info = sechdrs[i].sh_info;
++ strtab = (char *)sechdrs[strindex].sh_addr;
+
+ /* Not a valid relocation section? */
+ if (info >= hdr->e_shnum)
+@@ -2216,12 +2361,12 @@ static noinline struct module *load_modu
+ * Do it before processing of module parameters, so the module
+ * can provide parameter accessor functions of its own.
+ */
+- if (mod->module_init)
+- flush_icache_range((unsigned long)mod->module_init,
+- (unsigned long)mod->module_init
+- + mod->init_size);
+- flush_icache_range((unsigned long)mod->module_core,
+- (unsigned long)mod->module_core + mod->core_size);
++ if (mod->module_init_rx)
++ flush_icache_range((unsigned long)mod->module_init_rx,
++ (unsigned long)mod->module_init_rx
++ + mod->init_size_rx);
++ flush_icache_range((unsigned long)mod->module_core_rx,
++ (unsigned long)mod->module_core_rx + mod->core_size_rx);
+
+ set_fs(old_fs);
+
+@@ -2266,12 +2411,16 @@ static noinline struct module *load_modu
+ cleanup:
+ kobject_del(&mod->mkobj.kobj);
+ kobject_put(&mod->mkobj.kobj);
+- ftrace_release(mod->module_core, mod->core_size);
++ ftrace_release(mod->module_core_rx, mod->core_size_rx);
+ free_unload:
+ module_unload_free(mod);
+- module_free(mod, mod->module_init);
+- free_core:
+- module_free(mod, mod->module_core);
++ module_free_exec(mod, mod->module_init_rx);
++ free_core_rx:
++ module_free_exec(mod, mod->module_core_rx);
++ free_init_rw:
++ module_free(mod, mod->module_init_rw);
++ free_core_rw:
++ module_free(mod, mod->module_core_rw);
+ free_percpu:
+ if (percpu)
+ percpu_modfree(percpu);
+@@ -2294,6 +2443,9 @@ SYSCALL_DEFINE3(init_module, void __user
+ struct module *mod;
+ int ret = 0;
+
++ if (gr_check_modstop())
++ return -EPERM;
++
+ /* Must have permission */
+ if (!capable(CAP_SYS_MODULE))
+ return -EPERM;
+@@ -2349,10 +2501,12 @@ SYSCALL_DEFINE3(init_module, void __user
+ /* Drop initial reference. */
+ module_put(mod);
+ unwind_remove_table(mod->unwind_info, 1);
+- module_free(mod, mod->module_init);
+- mod->module_init = NULL;
+- mod->init_size = 0;
+- mod->init_text_size = 0;
++ module_free(mod, mod->module_init_rw);
++ module_free_exec(mod, mod->module_init_rx);
++ mod->module_init_rw = NULL;
++ mod->module_init_rx = NULL;
++ mod->init_size_rw = 0;
++ mod->init_size_rx = 0;
+ mutex_unlock(&module_mutex);
+
+ return 0;
+@@ -2360,6 +2514,13 @@ SYSCALL_DEFINE3(init_module, void __user
+
+ static inline int within(unsigned long addr, void *start, unsigned long size)
+ {
++
++#ifdef CONFIG_PAX_KERNEXEC
++ if (ktla_ktva(addr) >= (unsigned long)start &&
++ ktla_ktva(addr) < (unsigned long)start + size)
++ return 1;
++#endif
++
+ return ((void *)addr >= start && (void *)addr < start + size);
+ }
+
+@@ -2383,10 +2544,14 @@ static const char *get_ksymbol(struct mo
+ unsigned long nextval;
+
+ /* At worse, next value is at end of module */
+- if (within(addr, mod->module_init, mod->init_size))
+- nextval = (unsigned long)mod->module_init+mod->init_text_size;
++ if (within(addr, mod->module_init_rx, mod->init_size_rx))
++ nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
++ else if (within(addr, mod->module_init_rw, mod->init_size_rw))
++ nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
++ else if (within(addr, mod->module_core_rx, mod->core_size_rx))
++ nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
+ else
+- nextval = (unsigned long)mod->module_core+mod->core_text_size;
++ nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
+
+ /* Scan for closest preceeding symbol, and next symbol. (ELF
+ starts real symbols at 1). */
+@@ -2431,8 +2596,10 @@ const char *module_address_lookup(unsign
+
+ preempt_disable();
+ list_for_each_entry_rcu(mod, &modules, list) {
+- if (within(addr, mod->module_init, mod->init_size)
+- || within(addr, mod->module_core, mod->core_size)) {
++ if (within(addr, mod->module_init_rx, mod->init_size_rx) ||
++ within(addr, mod->module_init_rw, mod->init_size_rw) ||
++ within(addr, mod->module_core_rx, mod->core_size_rx) ||
++ within(addr, mod->module_core_rw, mod->core_size_rw)) {
+ if (modname)
+ *modname = mod->name;
+ ret = get_ksymbol(mod, addr, size, offset);
+@@ -2454,8 +2621,10 @@ int lookup_module_symbol_name(unsigned l
+
+ preempt_disable();
+ list_for_each_entry_rcu(mod, &modules, list) {
+- if (within(addr, mod->module_init, mod->init_size) ||
+- within(addr, mod->module_core, mod->core_size)) {
++ if (within(addr, mod->module_init_rx, mod->init_size_rx) ||
++ within(addr, mod->module_init_rw, mod->init_size_rw) ||
++ within(addr, mod->module_core_rx, mod->core_size_rx) ||
++ within(addr, mod->module_core_rw, mod->core_size_rw)) {
+ const char *sym;
+
+ sym = get_ksymbol(mod, addr, NULL, NULL);
+@@ -2478,8 +2647,10 @@ int lookup_module_symbol_attrs(unsigned
+
+ preempt_disable();
+ list_for_each_entry_rcu(mod, &modules, list) {
+- if (within(addr, mod->module_init, mod->init_size) ||
+- within(addr, mod->module_core, mod->core_size)) {
++ if (within(addr, mod->module_init_rx, mod->init_size_rx) ||
++ within(addr, mod->module_init_rw, mod->init_size_rw) ||
++ within(addr, mod->module_core_rx, mod->core_size_rx) ||
++ within(addr, mod->module_core_rw, mod->core_size_rw)) {
+ const char *sym;
+
+ sym = get_ksymbol(mod, addr, size, offset);
+@@ -2613,7 +2784,7 @@ static int m_show(struct seq_file *m, vo
+ char buf[8];
+
+ seq_printf(m, "%s %u",
+- mod->name, mod->init_size + mod->core_size);
++ mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
+ print_unload_info(m, mod);
+
+ /* Informative for users. */
+@@ -2622,7 +2793,7 @@ static int m_show(struct seq_file *m, vo
+ mod->state == MODULE_STATE_COMING ? "Loading":
+ "Live");
+ /* Used by oprofile and other similar tools. */
+- seq_printf(m, " 0x%p", mod->module_core);
++ seq_printf(m, " 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw);
+
+ /* Taints info */
+ if (mod->taints)
+@@ -2698,8 +2869,8 @@ int is_module_address(unsigned long addr
+ preempt_disable();
+
+ list_for_each_entry_rcu(mod, &modules, list) {
+- if (within(addr, mod->module_core, mod->core_size)) {
+- preempt_enable();
++ if (within(addr, mod->module_core_rx, mod->core_size_rx) ||
++ within(addr, mod->module_core_rw, mod->core_size_rw)) {
+ return 1;
+ }
+ }
+@@ -2715,12 +2886,16 @@ struct module *__module_text_address(uns
+ {
+ struct module *mod;
+
+- if (addr < module_addr_min || addr > module_addr_max)
++#ifdef CONFIG_X86_32
++ addr = ktla_ktva(addr);
++#endif
++
++ if (addr < module_addr_min_rx || addr > module_addr_max_rx)
+ return NULL;
+
+ list_for_each_entry_rcu(mod, &modules, list)
+- if (within(addr, mod->module_init, mod->init_text_size)
+- || within(addr, mod->module_core, mod->core_text_size))
++ if (within(addr, mod->module_init_rx, mod->init_size_rx)
++ || within(addr, mod->module_core_rx, mod->core_size_rx))
+ return mod;
+ return NULL;
+ }
+diff -urNp linux-2.6.28.8/kernel/mutex.c linux-2.6.28.8/kernel/mutex.c
+--- linux-2.6.28.8/kernel/mutex.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/mutex.c 2009-02-21 09:37:50.000000000 -0500
+@@ -83,7 +83,7 @@ __mutex_lock_slowpath(atomic_t *lock_cou
+ *
+ * This function is similar to (but not equivalent to) down().
+ */
+-void inline __sched mutex_lock(struct mutex *lock)
++inline void __sched mutex_lock(struct mutex *lock)
+ {
+ might_sleep();
+ /*
+diff -urNp linux-2.6.28.8/kernel/panic.c linux-2.6.28.8/kernel/panic.c
+--- linux-2.6.28.8/kernel/panic.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/panic.c 2009-02-21 09:37:50.000000000 -0500
+@@ -367,6 +367,8 @@ EXPORT_SYMBOL(warn_slowpath);
+ */
+ void __stack_chk_fail(void)
+ {
++ print_symbol("stack corrupted in: %s\n", (unsigned long)__builtin_return_address(0));
++ dump_stack();
+ panic("stack-protector: Kernel stack is corrupted");
+ }
+ EXPORT_SYMBOL(__stack_chk_fail);
+diff -urNp linux-2.6.28.8/kernel/pid.c linux-2.6.28.8/kernel/pid.c
+--- linux-2.6.28.8/kernel/pid.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/pid.c 2009-02-21 09:37:50.000000000 -0500
+@@ -33,6 +33,7 @@
+ #include <linux/rculist.h>
+ #include <linux/bootmem.h>
+ #include <linux/hash.h>
++#include <linux/security.h>
+ #include <linux/pid_namespace.h>
+ #include <linux/init_task.h>
+ #include <linux/syscalls.h>
+@@ -45,7 +46,7 @@ struct pid init_struct_pid = INIT_STRUCT
+
+ int pid_max = PID_MAX_DEFAULT;
+
+-#define RESERVED_PIDS 300
++#define RESERVED_PIDS 500
+
+ int pid_max_min = RESERVED_PIDS + 1;
+ int pid_max_max = PID_MAX_LIMIT;
+@@ -381,7 +382,14 @@ EXPORT_SYMBOL(pid_task);
+ struct task_struct *find_task_by_pid_type_ns(int type, int nr,
+ struct pid_namespace *ns)
+ {
+- return pid_task(find_pid_ns(nr, ns), type);
++ struct task_struct *task;
++
++ task = pid_task(find_pid_ns(nr, ns), type);
++
++ if (gr_pid_is_chrooted(task))
++ return NULL;
++
++ return task;
+ }
+
+ EXPORT_SYMBOL(find_task_by_pid_type_ns);
+diff -urNp linux-2.6.28.8/kernel/posix-cpu-timers.c linux-2.6.28.8/kernel/posix-cpu-timers.c
+--- linux-2.6.28.8/kernel/posix-cpu-timers.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/posix-cpu-timers.c 2009-02-21 09:37:50.000000000 -0500
+@@ -6,6 +6,7 @@
+ #include <linux/posix-timers.h>
+ #include <linux/errno.h>
+ #include <linux/math64.h>
++#include <linux/security.h>
+ #include <asm/uaccess.h>
+ #include <linux/kernel_stat.h>
+
+@@ -1157,6 +1158,7 @@ static void check_process_timers(struct
+ __group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);
+ return;
+ }
++ gr_learn_resource(tsk, RLIMIT_CPU, psecs, 1);
+ if (psecs >= sig->rlim[RLIMIT_CPU].rlim_cur) {
+ /*
+ * At the soft limit, send a SIGXCPU every second.
+@@ -1381,17 +1383,17 @@ void run_posix_cpu_timers(struct task_st
+ * timer call will interfere.
+ */
+ list_for_each_entry_safe(timer, next, &firing, it.cpu.entry) {
+- int firing;
++ int __firing;
+ spin_lock(&timer->it_lock);
+ list_del_init(&timer->it.cpu.entry);
+- firing = timer->it.cpu.firing;
++ __firing = timer->it.cpu.firing;
+ timer->it.cpu.firing = 0;
+ /*
+ * The firing flag is -1 if we collided with a reset
+ * of the timer, which already reported this
+ * almost-firing as an overrun. So don't generate an event.
+ */
+- if (likely(firing >= 0)) {
++ if (likely(__firing >= 0)) {
+ cpu_timer_fire(timer);
+ }
+ spin_unlock(&timer->it_lock);
+diff -urNp linux-2.6.28.8/kernel/power/poweroff.c linux-2.6.28.8/kernel/power/poweroff.c
+--- linux-2.6.28.8/kernel/power/poweroff.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/power/poweroff.c 2009-02-21 09:37:50.000000000 -0500
+@@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_powerof
+ .enable_mask = SYSRQ_ENABLE_BOOT,
+ };
+
+-static int pm_sysrq_init(void)
++static int __init pm_sysrq_init(void)
+ {
+ register_sysrq_key('o', &sysrq_poweroff_op);
+ return 0;
+diff -urNp linux-2.6.28.8/kernel/printk.c linux-2.6.28.8/kernel/printk.c
+--- linux-2.6.28.8/kernel/printk.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/printk.c 2009-02-21 09:37:50.000000000 -0500
+@@ -254,6 +254,11 @@ int do_syslog(int type, char __user *buf
+ char c;
+ int error = 0;
+
++#ifdef CONFIG_GRKERNSEC_DMESG
++ if (grsec_enable_dmesg && !capable(CAP_SYS_ADMIN))
++ return -EPERM;
++#endif
++
+ error = security_syslog(type);
+ if (error)
+ return error;
+diff -urNp linux-2.6.28.8/kernel/ptrace.c linux-2.6.28.8/kernel/ptrace.c
+--- linux-2.6.28.8/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/ptrace.c 2009-02-21 09:37:50.000000000 -0500
+@@ -132,12 +132,12 @@ int __ptrace_may_access(struct task_stru
+ (current->uid != task->uid) ||
+ (current->gid != task->egid) ||
+ (current->gid != task->sgid) ||
+- (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE))
++ (current->gid != task->gid)) && !capable_nolog(CAP_SYS_PTRACE))
+ return -EPERM;
+ smp_rmb();
+ if (task->mm)
+ dumpable = get_dumpable(task->mm);
+- if (!dumpable && !capable(CAP_SYS_PTRACE))
++ if (!dumpable && !capable_nolog(CAP_SYS_PTRACE))
+ return -EPERM;
+
+ return security_ptrace_may_access(task, mode);
+@@ -193,7 +193,7 @@ repeat:
+
+ /* Go */
+ task->ptrace |= PT_PTRACED;
+- if (capable(CAP_SYS_PTRACE))
++ if (capable_nolog(CAP_SYS_PTRACE))
+ task->ptrace |= PT_PTRACE_CAP;
+
+ __ptrace_link(task, current);
+@@ -582,6 +582,11 @@ SYSCALL_DEFINE4(ptrace, long, request, l
+ if (ret < 0)
+ goto out_put_task_struct;
+
++ if (gr_handle_ptrace(child, request)) {
++ ret = -EPERM;
++ goto out_put_task_struct;
++ }
++
+ ret = arch_ptrace(child, request, addr, data);
+ if (ret < 0)
+ goto out_put_task_struct;
+diff -urNp linux-2.6.28.8/kernel/relay.c linux-2.6.28.8/kernel/relay.c
+--- linux-2.6.28.8/kernel/relay.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/relay.c 2009-02-21 09:37:50.000000000 -0500
+@@ -1292,7 +1292,7 @@ static int subbuf_splice_actor(struct fi
+ return 0;
+
+ ret = *nonpad_ret = splice_to_pipe(pipe, &spd);
+- if (ret < 0 || ret < total_len)
++ if ((int)ret < 0 || ret < total_len)
+ return ret;
+
+ if (read_start + ret == nonpad_end)
+diff -urNp linux-2.6.28.8/kernel/resource.c linux-2.6.28.8/kernel/resource.c
+--- linux-2.6.28.8/kernel/resource.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/resource.c 2009-02-21 09:37:50.000000000 -0500
+@@ -132,8 +132,18 @@ static const struct file_operations proc
+
+ static int __init ioresources_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++ proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
++ proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++ proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
++ proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
++#endif
++#else
+ proc_create("ioports", 0, NULL, &proc_ioports_operations);
+ proc_create("iomem", 0, NULL, &proc_iomem_operations);
++#endif
+ return 0;
+ }
+ __initcall(ioresources_init);
+diff -urNp linux-2.6.28.8/kernel/sched.c linux-2.6.28.8/kernel/sched.c
+--- linux-2.6.28.8/kernel/sched.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/kernel/sched.c 2009-02-21 09:37:50.000000000 -0500
+@@ -5045,7 +5045,8 @@ SYSCALL_DEFINE1(nice, int, increment)
+ if (nice > 19)
+ nice = 19;
+
+- if (increment < 0 && !can_nice(current, nice))
++ if (increment < 0 && (!can_nice(current, nice) ||
++ gr_handle_chroot_nice()))
+ return -EPERM;
+
+ retval = security_task_setnice(current, nice);
+@@ -6310,7 +6311,7 @@ static struct ctl_table sd_ctl_dir[] = {
+ .procname = "sched_domain",
+ .mode = 0555,
+ },
+- {0, },
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static struct ctl_table sd_ctl_root[] = {
+@@ -6320,7 +6321,7 @@ static struct ctl_table sd_ctl_root[] =
+ .mode = 0555,
+ .child = sd_ctl_dir,
+ },
+- {0, },
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static struct ctl_table *sd_alloc_ctl_entry(int n)
+diff -urNp linux-2.6.28.8/kernel/signal.c linux-2.6.28.8/kernel/signal.c
+--- linux-2.6.28.8/kernel/signal.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/signal.c 2009-03-07 14:17:22.000000000 -0500
+@@ -596,6 +596,9 @@ static int check_kill_permission(int sig
+ }
+ }
+
++ if (gr_handle_signal(t, sig))
++ return -EPERM;
++
+ return security_task_kill(t, info, sig, 0);
+ }
+
+@@ -887,8 +890,8 @@ static void print_fatal_signal(struct pt
+ for (i = 0; i < 16; i++) {
+ unsigned char insn;
+
+- __get_user(insn, (unsigned char *)(regs->ip + i));
+- printk("%02x ", insn);
++ if (!get_user(insn, (unsigned char __user *)(regs->ip + i)))
++ printk("%02x ", insn);
+ }
+ }
+ #endif
+@@ -911,7 +914,7 @@ __group_send_sig_info(int sig, struct si
+ return send_signal(sig, info, p, 1);
+ }
+
+-static int
++int
+ specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
+ {
+ return send_signal(sig, info, t, 0);
+@@ -951,6 +954,9 @@ force_sig_info(int sig, struct siginfo *
+ ret = specific_send_sig_info(sig, info, t);
+ spin_unlock_irqrestore(&t->sighand->siglock, flags);
+
++ gr_log_signal(sig, t);
++ gr_handle_crash(t, sig);
++
+ return ret;
+ }
+
+@@ -1021,6 +1027,8 @@ int group_send_sig_info(int sig, struct
+ ret = __group_send_sig_info(sig, info, p);
+ unlock_task_sighand(p, &flags);
+ }
++ if (!ret)
++ gr_log_signal(sig, p);
+ }
+
+ return ret;
+diff -urNp linux-2.6.28.8/kernel/softirq.c linux-2.6.28.8/kernel/softirq.c
+--- linux-2.6.28.8/kernel/softirq.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/softirq.c 2009-02-21 09:37:50.000000000 -0500
+@@ -463,9 +463,9 @@ void tasklet_kill(struct tasklet_struct
+ printk("Attempt to kill tasklet from interrupt\n");
+
+ while (test_and_set_bit(TASKLET_STATE_SCHED, &t->state)) {
+- do
++ do {
+ yield();
+- while (test_bit(TASKLET_STATE_SCHED, &t->state));
++ } while (test_bit(TASKLET_STATE_SCHED, &t->state));
+ }
+ tasklet_unlock_wait(t);
+ clear_bit(TASKLET_STATE_SCHED, &t->state);
+diff -urNp linux-2.6.28.8/kernel/sys.c linux-2.6.28.8/kernel/sys.c
+--- linux-2.6.28.8/kernel/sys.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/kernel/sys.c 2009-02-21 09:37:50.000000000 -0500
+@@ -125,6 +125,12 @@ static int set_one_prio(struct task_stru
+ error = -EACCES;
+ goto out;
+ }
++
++ if (gr_handle_chroot_setpriority(p, niceval)) {
++ error = -EACCES;
++ goto out;
++ }
++
+ no_nice = security_task_setnice(p, niceval);
+ if (no_nice) {
+ error = no_nice;
+@@ -181,10 +187,10 @@ SYSCALL_DEFINE3(setpriority, int, which,
+ if ((who != current->uid) && !(user = find_user(who)))
+ goto out_unlock; /* No processes for this user */
+
+- do_each_thread(g, p)
++ do_each_thread(g, p) {
+ if (p->uid == who)
+ error = set_one_prio(p, niceval, error);
+- while_each_thread(g, p);
++ } while_each_thread(g, p);
+ if (who != current->uid)
+ free_uid(user); /* For find_user() */
+ break;
+@@ -243,13 +249,13 @@ SYSCALL_DEFINE2(getpriority, int, which,
+ if ((who != current->uid) && !(user = find_user(who)))
+ goto out_unlock; /* No processes for this user */
+
+- do_each_thread(g, p)
++ do_each_thread(g, p) {
+ if (p->uid == who) {
+ niceval = 20 - task_nice(p);
+ if (niceval > retval)
+ retval = niceval;
+ }
+- while_each_thread(g, p);
++ } while_each_thread(g, p);
+ if (who != current->uid)
+ free_uid(user); /* for find_user() */
+ break;
+@@ -500,6 +506,10 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g
+ else
+ return -EPERM;
+ }
++
++ if (gr_check_group_change(new_rgid, new_egid, -1))
++ return -EPERM;
++
+ if (new_egid != old_egid) {
+ set_dumpable(current->mm, suid_dumpable);
+ smp_wmb();
+@@ -507,6 +517,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g
+ if (rgid != (gid_t) -1 ||
+ (egid != (gid_t) -1 && egid != old_rgid))
+ current->sgid = new_egid;
++
++ gr_set_role_label(current, current->uid, new_rgid);
++
+ current->fsgid = new_egid;
+ current->egid = new_egid;
+ current->gid = new_rgid;
+@@ -529,11 +542,17 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
+ if (retval)
+ return retval;
+
++ if (gr_check_group_change(gid, gid, gid))
++ return -EPERM;
++
+ if (capable(CAP_SETGID)) {
+ if (old_egid != gid) {
+ set_dumpable(current->mm, suid_dumpable);
+ smp_wmb();
+ }
++
++ gr_set_role_label(current, current->uid, gid);
++
+ current->gid = current->egid = current->sgid = current->fsgid = gid;
+ } else if ((gid == current->gid) || (gid == current->sgid)) {
+ if (old_egid != gid) {
+@@ -571,6 +590,9 @@ static int set_user(uid_t new_ruid, int
+ set_dumpable(current->mm, suid_dumpable);
+ smp_wmb();
+ }
++
++ gr_set_role_label(current, new_ruid, current->gid);
++
+ current->uid = new_ruid;
+ return 0;
+ }
+@@ -620,6 +642,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, u
+ return -EPERM;
+ }
+
++ if (gr_check_user_change(new_ruid, new_euid, -1))
++ return -EPERM;
++
+ if (new_ruid != old_ruid && set_user(new_ruid, new_euid != old_euid) < 0)
+ return -EAGAIN;
+
+@@ -666,6 +691,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
+ old_suid = current->suid;
+ new_suid = old_suid;
+
++ if (gr_check_crash_uid(uid))
++ return -EPERM;
++
++ if (gr_check_user_change(uid, uid, uid))
++ return -EPERM;
++
+ if (capable(CAP_SETUID)) {
+ if (uid != old_ruid && set_user(uid, old_euid != uid) < 0)
+ return -EAGAIN;
+@@ -713,6 +744,10 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid,
+ (suid != current->euid) && (suid != current->suid))
+ return -EPERM;
+ }
++
++ if (gr_check_user_change(ruid, euid, -1))
++ return -EPERM;
++
+ if (ruid != (uid_t) -1) {
+ if (ruid != current->uid && set_user(ruid, euid != current->euid) < 0)
+ return -EAGAIN;
+@@ -767,6 +802,10 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid,
+ (sgid != current->egid) && (sgid != current->sgid))
+ return -EPERM;
+ }
++
++ if (gr_check_group_change(rgid, egid, -1))
++ return -EPERM;
++
+ if (egid != (gid_t) -1) {
+ if (egid != current->egid) {
+ set_dumpable(current->mm, suid_dumpable);
+@@ -775,8 +814,10 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid,
+ current->egid = egid;
+ }
+ current->fsgid = current->egid;
+- if (rgid != (gid_t) -1)
++ if (rgid != (gid_t) -1) {
++ gr_set_role_label(current, current->uid, rgid);
+ current->gid = rgid;
++ }
+ if (sgid != (gid_t) -1)
+ current->sgid = sgid;
+
+@@ -811,6 +852,9 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
+ if (security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS))
+ return old_fsuid;
+
++ if (gr_check_user_change(-1, -1, uid))
++ return old_fsuid;
++
+ if (uid == current->uid || uid == current->euid ||
+ uid == current->suid || uid == current->fsuid ||
+ capable(CAP_SETUID)) {
+@@ -843,6 +887,9 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
+ if (gid == current->gid || gid == current->egid ||
+ gid == current->sgid || gid == current->fsgid ||
+ capable(CAP_SETGID)) {
++ if (gr_check_group_change(-1, -1, gid))
++ return old_fsgid;
++
+ if (gid != old_fsgid) {
+ set_dumpable(current->mm, suid_dumpable);
+ smp_wmb();
+@@ -914,7 +961,10 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid
+ write_lock_irq(&tasklist_lock);
+
+ err = -ESRCH;
+- p = find_task_by_vpid(pid);
++ /* grsec: replaced find_task_by_vpid with equivalent call which
++ lacks the chroot restriction
++ */
++ p = pid_task(find_pid_ns(pid, current->nsproxy->pid_ns), PIDTYPE_PID);
+ if (!p)
+ goto out;
+
+@@ -1640,7 +1690,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsi
+ error = get_dumpable(current->mm);
+ break;
+ case PR_SET_DUMPABLE:
+- if (arg2 < 0 || arg2 > 1) {
++ if (arg2 > 1) {
+ error = -EINVAL;
+ break;
+ }
+diff -urNp linux-2.6.28.8/kernel/sysctl.c linux-2.6.28.8/kernel/sysctl.c
+--- linux-2.6.28.8/kernel/sysctl.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/sysctl.c 2009-03-07 04:29:14.000000000 -0500
+@@ -61,6 +61,13 @@
+ static int deprecated_sysctl_warning(struct __sysctl_args *args);
+
+ #if defined(CONFIG_SYSCTL)
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++extern __u32 gr_handle_sysctl(const ctl_table *table, const int op);
++extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
++ const int op);
++extern int gr_handle_chroot_sysctl(const int op);
+
+ /* External variables not in a header file. */
+ extern int C_A_D;
+@@ -152,6 +159,7 @@ static int proc_do_cad_pid(struct ctl_ta
+ static int proc_taint(struct ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
+ #endif
++extern ctl_table grsecurity_table[];
+
+ static struct ctl_table root_table[];
+ static struct ctl_table_root sysctl_table_root;
+@@ -184,6 +192,21 @@ extern struct ctl_table epoll_table[];
+ int sysctl_legacy_va_layout;
+ #endif
+
++#ifdef CONFIG_PAX_SOFTMODE
++static ctl_table pax_table[] = {
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "softmode",
++ .data = &pax_softmode,
++ .maxlen = sizeof(unsigned int),
++ .mode = 0600,
++ .proc_handler = &proc_dointvec,
++ },
++
++ { .ctl_name = 0 }
++};
++#endif
++
+ extern int prove_locking;
+ extern int lock_stat;
+
+@@ -856,6 +879,25 @@ static struct ctl_table kern_table[] = {
+ .proc_handler = &scan_unevictable_handler,
+ },
+ #endif
++
++#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_MODSTOP)
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "grsecurity",
++ .mode = 0500,
++ .child = grsecurity_table,
++ },
++#endif
++
++#ifdef CONFIG_PAX_SOFTMODE
++ {
++ .ctl_name = CTL_UNNUMBERED,
++ .procname = "pax",
++ .mode = 0500,
++ .child = pax_table,
++ },
++#endif
++
+ /*
+ * NOTE: do not add new entries to this table unless you have read
+ * Documentation/sysctl/ctl_unnumbered.txt
+@@ -1562,6 +1604,8 @@ static int do_sysctl_strategy(struct ctl
+ return 0;
+ }
+
++static int sysctl_perm_nochk(struct ctl_table_root *root, struct ctl_table *table, int op);
++
+ static int parse_table(int __user *name, int nlen,
+ void __user *oldval, size_t __user *oldlenp,
+ void __user *newval, size_t newlen,
+@@ -1580,7 +1624,7 @@ repeat:
+ if (n == table->ctl_name) {
+ int error;
+ if (table->child) {
+- if (sysctl_perm(root, table, MAY_EXEC))
++ if (sysctl_perm_nochk(root, table, MAY_EXEC))
+ return -EPERM;
+ name++;
+ nlen--;
+@@ -1665,6 +1709,33 @@ int sysctl_perm(struct ctl_table_root *r
+ int error;
+ int mode;
+
++ if (table->parent != NULL && table->parent->procname != NULL &&
++ table->procname != NULL &&
++ gr_handle_sysctl_mod(table->parent->procname, table->procname, op))
++ return -EACCES;
++ if (gr_handle_chroot_sysctl(op))
++ return -EACCES;
++ error = gr_handle_sysctl(table, op);
++ if (error)
++ return error;
++
++ error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC));
++ if (error)
++ return error;
++
++ if (root->permissions)
++ mode = root->permissions(root, current->nsproxy, table);
++ else
++ mode = table->mode;
++
++ return test_perm(mode, op);
++}
++
++int sysctl_perm_nochk(struct ctl_table_root *root, struct ctl_table *table, int op)
++{
++ int error;
++ int mode;
++
+ error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC));
+ if (error)
+ return error;
+diff -urNp linux-2.6.28.8/kernel/time/tick-broadcast.c linux-2.6.28.8/kernel/time/tick-broadcast.c
+--- linux-2.6.28.8/kernel/time/tick-broadcast.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/time/tick-broadcast.c 2009-02-21 09:37:50.000000000 -0500
+@@ -114,7 +114,7 @@ int tick_device_uses_broadcast(struct cl
+ * then clear the broadcast bit.
+ */
+ if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) {
+- int cpu = smp_processor_id();
++ cpu = smp_processor_id();
+
+ cpu_clear(cpu, tick_broadcast_mask);
+ tick_broadcast_clear_oneshot(cpu);
+diff -urNp linux-2.6.28.8/kernel/time.c linux-2.6.28.8/kernel/time.c
+--- linux-2.6.28.8/kernel/time.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/time.c 2009-02-21 09:37:50.000000000 -0500
+@@ -92,6 +92,9 @@ SYSCALL_DEFINE1(stime, time_t __user *,
+ return err;
+
+ do_settimeofday(&tv);
++
++ gr_log_timechange();
++
+ return 0;
+ }
+
+@@ -200,6 +203,8 @@ SYSCALL_DEFINE2(settimeofday, struct tim
+ return -EFAULT;
+ }
+
++ gr_log_timechange();
++
+ return do_sys_settimeofday(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
+ }
+
+@@ -238,7 +243,7 @@ EXPORT_SYMBOL(current_fs_time);
+ * Avoid unnecessary multiplications/divisions in the
+ * two most common HZ cases:
+ */
+-unsigned int inline jiffies_to_msecs(const unsigned long j)
++inline unsigned int jiffies_to_msecs(const unsigned long j)
+ {
+ #if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
+ return (MSEC_PER_SEC / HZ) * j;
+@@ -254,7 +259,7 @@ unsigned int inline jiffies_to_msecs(con
+ }
+ EXPORT_SYMBOL(jiffies_to_msecs);
+
+-unsigned int inline jiffies_to_usecs(const unsigned long j)
++inline unsigned int jiffies_to_usecs(const unsigned long j)
+ {
+ #if HZ <= USEC_PER_SEC && !(USEC_PER_SEC % HZ)
+ return (USEC_PER_SEC / HZ) * j;
+diff -urNp linux-2.6.28.8/kernel/utsname_sysctl.c linux-2.6.28.8/kernel/utsname_sysctl.c
+--- linux-2.6.28.8/kernel/utsname_sysctl.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/kernel/utsname_sysctl.c 2009-02-21 09:37:50.000000000 -0500
+@@ -123,7 +123,7 @@ static struct ctl_table uts_kern_table[]
+ .proc_handler = proc_do_uts_string,
+ .strategy = sysctl_uts_string,
+ },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static struct ctl_table uts_root_table[] = {
+@@ -133,7 +133,7 @@ static struct ctl_table uts_root_table[]
+ .mode = 0555,
+ .child = uts_kern_table,
+ },
+- {}
++ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL }
+ };
+
+ static int __init utsname_sysctl_init(void)
+diff -urNp linux-2.6.28.8/lib/radix-tree.c linux-2.6.28.8/lib/radix-tree.c
+--- linux-2.6.28.8/lib/radix-tree.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/lib/radix-tree.c 2009-02-21 09:37:50.000000000 -0500
+@@ -81,7 +81,7 @@ struct radix_tree_preload {
+ int nr;
+ struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH];
+ };
+-DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
++DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
+
+ static inline gfp_t root_gfp_mask(struct radix_tree_root *root)
+ {
+diff -urNp linux-2.6.28.8/localversion-grsec linux-2.6.28.8/localversion-grsec
+--- linux-2.6.28.8/localversion-grsec 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/localversion-grsec 2009-02-21 09:37:50.000000000 -0500
+@@ -0,0 +1 @@
++-grsec
+diff -urNp linux-2.6.28.8/Makefile linux-2.6.28.8/Makefile
+--- linux-2.6.28.8/Makefile 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/Makefile 2009-03-07 10:29:51.000000000 -0500
+@@ -221,7 +221,7 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH"
+
+ HOSTCC = gcc
+ HOSTCXX = g++
+-HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
++HOSTCFLAGS = -Wall -W -Wno-unused -Wno-sign-compare -Wstrict-prototypes -O2 -fomit-frame-pointer
+ HOSTCXXFLAGS = -O2
+
+ # Decide whether to build built-in, modular, or both.
+@@ -619,7 +619,7 @@ export mod_strip_cmd
+
+
+ ifeq ($(KBUILD_EXTMOD),)
+-core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
++core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
+
+ vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
+ $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
+diff -urNp linux-2.6.28.8/mm/filemap.c linux-2.6.28.8/mm/filemap.c
+--- linux-2.6.28.8/mm/filemap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/filemap.c 2009-02-21 09:37:50.000000000 -0500
+@@ -1609,7 +1609,7 @@ int generic_file_mmap(struct file * file
+ struct address_space *mapping = file->f_mapping;
+
+ if (!mapping->a_ops->readpage)
+- return -ENOEXEC;
++ return -ENODEV;
+ file_accessed(file);
+ vma->vm_ops = &generic_file_vm_ops;
+ vma->vm_flags |= VM_CAN_NONLINEAR;
+@@ -1970,6 +1970,7 @@ inline int generic_write_checks(struct f
+ *pos = i_size_read(inode);
+
+ if (limit != RLIM_INFINITY) {
++ gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
+ if (*pos >= limit) {
+ send_sig(SIGXFSZ, current, 0);
+ return -EFBIG;
+diff -urNp linux-2.6.28.8/mm/fremap.c linux-2.6.28.8/mm/fremap.c
+--- linux-2.6.28.8/mm/fremap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/fremap.c 2009-02-21 09:37:50.000000000 -0500
+@@ -153,6 +153,13 @@ SYSCALL_DEFINE5(remap_file_pages, unsign
+ retry:
+ vma = find_vma(mm, start);
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC)) {
++ up_read(&mm->mmap_sem);
++ return err;
++ }
++#endif
++
+ /*
+ * Make sure the vma is shared, that it supports prefaulting,
+ * and that the remapped range is valid and fully within
+diff -urNp linux-2.6.28.8/mm/hugetlb.c linux-2.6.28.8/mm/hugetlb.c
+--- linux-2.6.28.8/mm/hugetlb.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/hugetlb.c 2009-02-21 09:37:50.000000000 -0500
+@@ -1832,6 +1832,26 @@ static int unmap_ref_private(struct mm_s
+ return 1;
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
++{
++ struct mm_struct *mm = vma->vm_mm;
++ struct vm_area_struct *vma_m;
++ unsigned long address_m;
++ pte_t *ptep_m;
++
++ vma_m = pax_find_mirror_vma(vma);
++ if (!vma_m)
++ return;
++
++ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++ address_m = address + SEGMEXEC_TASK_SIZE;
++ ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
++ get_page(page_m);
++ set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
++}
++#endif
++
+ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
+ unsigned long address, pte_t *ptep, pte_t pte,
+ struct page *pagecache_page)
+@@ -1903,6 +1923,11 @@ retry_avoidcopy:
+ huge_ptep_clear_flush(vma, address, ptep);
+ set_huge_pte_at(mm, address, ptep,
+ make_huge_pte(vma, new_page, 1));
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ pax_mirror_huge_pte(vma, address, new_page);
++#endif
++
+ /* Make the old page be freed below */
+ new_page = old_page;
+ }
+@@ -2012,6 +2037,10 @@ retry:
+ && (vma->vm_flags & VM_SHARED)));
+ set_huge_pte_at(mm, address, ptep, new_pte);
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ pax_mirror_huge_pte(vma, address, page);
++#endif
++
+ if (write_access && !(vma->vm_flags & VM_SHARED)) {
+ /* Optimization, do the COW without a second fault */
+ ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
+@@ -2040,6 +2069,28 @@ int hugetlb_fault(struct mm_struct *mm,
+ static DEFINE_MUTEX(hugetlb_instantiation_mutex);
+ struct hstate *h = hstate_vma(vma);
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m;
++
++ vma_m = pax_find_mirror_vma(vma);
++ if (vma_m) {
++ unsigned long address_m;
++
++ if (vma->vm_start > vma_m->vm_start) {
++ address_m = address;
++ address -= SEGMEXEC_TASK_SIZE;
++ vma = vma_m;
++ h = hstate_vma(vma);
++ } else
++ address_m = address + SEGMEXEC_TASK_SIZE;
++
++ if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
++ return VM_FAULT_OOM;
++ address_m &= HPAGE_MASK;
++ unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
++ }
++#endif
++
+ ptep = huge_pte_alloc(mm, address, huge_page_size(h));
+ if (!ptep)
+ return VM_FAULT_OOM;
+diff -urNp linux-2.6.28.8/mm/madvise.c linux-2.6.28.8/mm/madvise.c
+--- linux-2.6.28.8/mm/madvise.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/madvise.c 2009-02-21 09:37:50.000000000 -0500
+@@ -43,6 +43,10 @@ static long madvise_behavior(struct vm_a
+ pgoff_t pgoff;
+ int new_flags = vma->vm_flags;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m;
++#endif
++
+ switch (behavior) {
+ case MADV_NORMAL:
+ new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
+@@ -92,6 +96,13 @@ success:
+ /*
+ * vm_flags is protected by the mmap_sem held in write mode.
+ */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ vma_m = pax_find_mirror_vma(vma);
++ if (vma_m)
++ vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
++#endif
++
+ vma->vm_flags = new_flags;
+
+ out:
+@@ -236,6 +247,17 @@ madvise_vma(struct vm_area_struct *vma,
+
+ case MADV_DONTNEED:
+ error = madvise_dontneed(vma, prev, start, end);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (!error) {
++ struct vm_area_struct *vma_m, *prev_m;
++
++ vma_m = pax_find_mirror_vma(vma);
++ if (vma_m)
++ error = madvise_dontneed(vma_m, &prev_m, start + SEGMEXEC_TASK_SIZE, end + SEGMEXEC_TASK_SIZE);
++ }
++#endif
++
+ break;
+
+ default:
+@@ -308,6 +330,16 @@ SYSCALL_DEFINE3(madvise, unsigned long,
+ if (end < start)
+ goto out;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
++ if (end > SEGMEXEC_TASK_SIZE)
++ goto out;
++ } else
++#endif
++
++ if (end > TASK_SIZE)
++ goto out;
++
+ error = 0;
+ if (end == start)
+ goto out;
+diff -urNp linux-2.6.28.8/mm/memory.c linux-2.6.28.8/mm/memory.c
+--- linux-2.6.28.8/mm/memory.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/mm/memory.c 2009-02-21 09:37:50.000000000 -0500
+@@ -47,6 +47,7 @@
+ #include <linux/pagemap.h>
+ #include <linux/rmap.h>
+ #include <linux/module.h>
++#include <linux/security.h>
+ #include <linux/delayacct.h>
+ #include <linux/init.h>
+ #include <linux/writeback.h>
+@@ -1151,11 +1152,11 @@ int __get_user_pages(struct task_struct
+ vm_flags &= force ? (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE);
+ i = 0;
+
+- do {
++ while (len) {
+ struct vm_area_struct *vma;
+ unsigned int foll_flags;
+
+- vma = find_extend_vma(mm, start);
++ vma = find_vma(mm, start);
+ if (!vma && in_gate_area(tsk, start)) {
+ unsigned long pg = start & PAGE_MASK;
+ struct vm_area_struct *gate_vma = get_gate_vma(tsk);
+@@ -1197,7 +1198,7 @@ int __get_user_pages(struct task_struct
+ continue;
+ }
+
+- if (!vma ||
++ if (!vma || start < vma->vm_start ||
+ (vma->vm_flags & (VM_IO | VM_PFNMAP)) ||
+ (!ignore && !(vm_flags & vma->vm_flags)))
+ return i ? : -EFAULT;
+@@ -1271,7 +1272,7 @@ int __get_user_pages(struct task_struct
+ start += PAGE_SIZE;
+ len--;
+ } while (len && start < vma->vm_end);
+- } while (len);
++ }
+ return i;
+ }
+
+@@ -1760,6 +1761,186 @@ static inline void cow_user_page(struct
+ copy_user_highpage(dst, src, va, vma);
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
++{
++ struct mm_struct *mm = vma->vm_mm;
++ spinlock_t *ptl;
++ pte_t *pte, entry;
++
++ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
++ entry = *pte;
++ if (!pte_present(entry)) {
++ if (!pte_none(entry)) {
++ BUG_ON(pte_file(entry));
++ free_swap_and_cache(pte_to_swp_entry(entry));
++ pte_clear_not_present_full(mm, address, pte, 0);
++ }
++ } else {
++ struct page *page;
++
++ flush_cache_page(vma, address, pte_pfn(entry));
++ entry = ptep_clear_flush(vma, address, pte);
++ BUG_ON(pte_dirty(entry));
++ page = vm_normal_page(vma, address, entry);
++ if (page) {
++ update_hiwater_rss(mm);
++ if (PageAnon(page))
++ dec_mm_counter(mm, anon_rss);
++ else
++ dec_mm_counter(mm, file_rss);
++ page_remove_rmap(page, vma);
++ page_cache_release(page);
++ }
++ }
++ pte_unmap_unlock(pte, ptl);
++}
++
++/* PaX: if vma is mirrored, synchronize the mirror's PTE
++ *
++ * the ptl of the lower mapped page is held on entry and is not released on exit
++ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
++ */
++static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
++{
++ struct mm_struct *mm = vma->vm_mm;
++ unsigned long address_m;
++ spinlock_t *ptl_m;
++ struct vm_area_struct *vma_m;
++ pmd_t *pmd_m;
++ pte_t *pte_m, entry_m;
++
++ BUG_ON(!page_m || !PageAnon(page_m));
++
++ vma_m = pax_find_mirror_vma(vma);
++ if (!vma_m)
++ return;
++
++ BUG_ON(!PageLocked(page_m));
++ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++ address_m = address + SEGMEXEC_TASK_SIZE;
++ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
++ pte_m = pte_offset_map_nested(pmd_m, address_m);
++ ptl_m = pte_lockptr(mm, pmd_m);
++ if (ptl != ptl_m) {
++ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
++ if (!pte_none(*pte_m))
++ goto out;
++ }
++
++ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
++ page_cache_get(page_m);
++ page_add_anon_rmap(page_m, vma_m, address_m);
++ inc_mm_counter(mm, anon_rss);
++ set_pte_at(mm, address_m, pte_m, entry_m);
++ update_mmu_cache(vma_m, address_m, entry_m);
++out:
++ if (ptl != ptl_m)
++ spin_unlock(ptl_m);
++ pte_unmap_nested(pte_m);
++ unlock_page(page_m);
++}
++
++void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
++{
++ struct mm_struct *mm = vma->vm_mm;
++ unsigned long address_m;
++ spinlock_t *ptl_m;
++ struct vm_area_struct *vma_m;
++ pmd_t *pmd_m;
++ pte_t *pte_m, entry_m;
++
++ BUG_ON(!page_m || PageAnon(page_m));
++
++ vma_m = pax_find_mirror_vma(vma);
++ if (!vma_m)
++ return;
++
++ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++ address_m = address + SEGMEXEC_TASK_SIZE;
++ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
++ pte_m = pte_offset_map_nested(pmd_m, address_m);
++ ptl_m = pte_lockptr(mm, pmd_m);
++ if (ptl != ptl_m) {
++ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
++ if (!pte_none(*pte_m))
++ goto out;
++ }
++
++ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
++ page_cache_get(page_m);
++ page_add_file_rmap(page_m);
++ inc_mm_counter(mm, file_rss);
++ set_pte_at(mm, address_m, pte_m, entry_m);
++ update_mmu_cache(vma_m, address_m, entry_m);
++out:
++ if (ptl != ptl_m)
++ spin_unlock(ptl_m);
++ pte_unmap_nested(pte_m);
++}
++
++static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
++{
++ struct mm_struct *mm = vma->vm_mm;
++ unsigned long address_m;
++ spinlock_t *ptl_m;
++ struct vm_area_struct *vma_m;
++ pmd_t *pmd_m;
++ pte_t *pte_m, entry_m;
++
++ vma_m = pax_find_mirror_vma(vma);
++ if (!vma_m)
++ return;
++
++ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++ address_m = address + SEGMEXEC_TASK_SIZE;
++ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
++ pte_m = pte_offset_map_nested(pmd_m, address_m);
++ ptl_m = pte_lockptr(mm, pmd_m);
++ if (ptl != ptl_m) {
++ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
++ if (!pte_none(*pte_m))
++ goto out;
++ }
++
++ entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
++ set_pte_at(mm, address_m, pte_m, entry_m);
++out:
++ if (ptl != ptl_m)
++ spin_unlock(ptl_m);
++ pte_unmap_nested(pte_m);
++}
++
++static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
++{
++ struct page *page_m;
++ pte_t entry;
++
++ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
++ goto out;
++
++ entry = *pte;
++ page_m = vm_normal_page(vma, address, entry);
++ if (!page_m)
++ pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
++ else if (PageAnon(page_m)) {
++ if (pax_find_mirror_vma(vma)) {
++ pte_unmap_unlock(pte, ptl);
++ lock_page(page_m);
++ pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
++ if (pte_same(entry, *pte))
++ pax_mirror_anon_pte(vma, address, page_m, ptl);
++ else
++ unlock_page(page_m);
++ }
++ } else
++ pax_mirror_file_pte(vma, address, page_m, ptl);
++
++out:
++ pte_unmap_unlock(pte, ptl);
++}
++#endif
++
+ /*
+ * This routine handles present pages, when users try to write
+ * to a shared page. It is done by copying the page to a new address
+@@ -1897,6 +2078,12 @@ gotten:
+ */
+ page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
+ if (likely(pte_same(*page_table, orig_pte))) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (pax_find_mirror_vma(vma))
++ BUG_ON(!trylock_page(new_page));
++#endif
++
+ if (old_page) {
+ if (!PageAnon(old_page)) {
+ dec_mm_counter(mm, file_rss);
+@@ -1947,6 +2134,10 @@ gotten:
+ page_remove_rmap(old_page, vma);
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ pax_mirror_anon_pte(vma, address, new_page, ptl);
++#endif
++
+ /* Free the old page.. */
+ new_page = old_page;
+ ret |= VM_FAULT_WRITE;
+@@ -2206,6 +2397,7 @@ int vmtruncate(struct inode * inode, lof
+ unsigned long limit;
+
+ limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
++ gr_learn_resource(current, RLIMIT_FSIZE, offset, 1);
+ if (limit != RLIM_INFINITY && offset > limit)
+ goto out_sig;
+ if (offset > inode->i_sb->s_maxbytes)
+@@ -2357,6 +2549,11 @@ static int do_swap_page(struct mm_struct
+ swap_free(entry);
+ if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
+ remove_exclusive_swap_page(page);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (write_access || !pax_find_mirror_vma(vma))
++#endif
++
+ unlock_page(page);
+
+ if (write_access) {
+@@ -2368,6 +2565,11 @@ static int do_swap_page(struct mm_struct
+
+ /* No need to invalidate - it was non-present before */
+ update_mmu_cache(vma, address, pte);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ pax_mirror_anon_pte(vma, address, page, ptl);
++#endif
++
+ unlock:
+ pte_unmap_unlock(page_table, ptl);
+ out:
+@@ -2412,6 +2614,12 @@ static int do_anonymous_page(struct mm_s
+ page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
+ if (!pte_none(*page_table))
+ goto release;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (pax_find_mirror_vma(vma))
++ BUG_ON(!trylock_page(page));
++#endif
++
+ inc_mm_counter(mm, anon_rss);
+ SetPageSwapBacked(page);
+ lru_cache_add_active_or_unevictable(page, vma);
+@@ -2420,6 +2628,11 @@ static int do_anonymous_page(struct mm_s
+
+ /* No need to invalidate - it was non-present before */
+ update_mmu_cache(vma, address, entry);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ pax_mirror_anon_pte(vma, address, page, ptl);
++#endif
++
+ unlock:
+ pte_unmap_unlock(page_table, ptl);
+ return 0;
+@@ -2556,6 +2769,12 @@ static int __do_fault(struct mm_struct *
+ */
+ /* Only go through if we didn't race with anybody else... */
+ if (likely(pte_same(*page_table, orig_pte))) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (anon && pax_find_mirror_vma(vma))
++ BUG_ON(!trylock_page(page));
++#endif
++
+ flush_icache_page(vma, page);
+ entry = mk_pte(page, vma->vm_page_prot);
+ if (flags & FAULT_FLAG_WRITE)
+@@ -2578,6 +2797,14 @@ static int __do_fault(struct mm_struct *
+
+ /* no need to invalidate: a not-present page won't be cached */
+ update_mmu_cache(vma, address, entry);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (anon)
++ pax_mirror_anon_pte(vma, address, page, ptl);
++ else
++ pax_mirror_file_pte(vma, address, page, ptl);
++#endif
++
+ } else {
+ if (charged)
+ mem_cgroup_uncharge_page(page);
+@@ -2711,6 +2938,12 @@ static inline int handle_pte_fault(struc
+ if (write_access)
+ flush_tlb_page(vma, address);
+ }
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ pax_mirror_pte(vma, address, pte, pmd, ptl);
++ return 0;
++#endif
++
+ unlock:
+ pte_unmap_unlock(pte, ptl);
+ return 0;
+@@ -2727,6 +2960,10 @@ int handle_mm_fault(struct mm_struct *mm
+ pmd_t *pmd;
+ pte_t *pte;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m;
++#endif
++
+ __set_current_state(TASK_RUNNING);
+
+ count_vm_event(PGFAULT);
+@@ -2734,6 +2971,34 @@ int handle_mm_fault(struct mm_struct *mm
+ if (unlikely(is_vm_hugetlb_page(vma)))
+ return hugetlb_fault(mm, vma, address, write_access);
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ vma_m = pax_find_mirror_vma(vma);
++ if (vma_m) {
++ unsigned long address_m;
++ pgd_t *pgd_m;
++ pud_t *pud_m;
++ pmd_t *pmd_m;
++
++ if (vma->vm_start > vma_m->vm_start) {
++ address_m = address;
++ address -= SEGMEXEC_TASK_SIZE;
++ vma = vma_m;
++ } else
++ address_m = address + SEGMEXEC_TASK_SIZE;
++
++ pgd_m = pgd_offset(mm, address_m);
++ pud_m = pud_alloc(mm, pgd_m, address_m);
++ if (!pud_m)
++ return VM_FAULT_OOM;
++ pmd_m = pmd_alloc(mm, pud_m, address_m);
++ if (!pmd_m)
++ return VM_FAULT_OOM;
++ if (!pmd_present(*pmd_m) && __pte_alloc(mm, pmd_m, address_m))
++ return VM_FAULT_OOM;
++ pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
++ }
++#endif
++
+ pgd = pgd_offset(mm, address);
+ pud = pud_alloc(mm, pgd, address);
+ if (!pud)
+@@ -2831,7 +3096,7 @@ static int __init gate_vma_init(void)
+ gate_vma.vm_start = FIXADDR_USER_START;
+ gate_vma.vm_end = FIXADDR_USER_END;
+ gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
+- gate_vma.vm_page_prot = __P101;
++ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
+ /*
+ * Make sure the vDSO gets into every core dump.
+ * Dumping its contents makes post-mortem fully interpretable later
+diff -urNp linux-2.6.28.8/mm/mempolicy.c linux-2.6.28.8/mm/mempolicy.c
+--- linux-2.6.28.8/mm/mempolicy.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/mempolicy.c 2009-02-21 09:37:50.000000000 -0500
+@@ -551,6 +551,10 @@ static int mbind_range(struct vm_area_st
+ struct vm_area_struct *next;
+ int err;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m;
++#endif
++
+ err = 0;
+ for (; vma && vma->vm_start < end; vma = next) {
+ next = vma->vm_next;
+@@ -562,6 +566,16 @@ static int mbind_range(struct vm_area_st
+ err = policy_vma(vma, new);
+ if (err)
+ break;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ vma_m = pax_find_mirror_vma(vma);
++ if (vma_m) {
++ err = policy_vma(vma_m, new);
++ if (err)
++ break;
++ }
++#endif
++
+ }
+ return err;
+ }
+@@ -954,6 +968,17 @@ static long do_mbind(unsigned long start
+
+ if (end < start)
+ return -EINVAL;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
++ if (end > SEGMEXEC_TASK_SIZE)
++ return -EINVAL;
++ } else
++#endif
++
++ if (end > TASK_SIZE)
++ return -EINVAL;
++
+ if (end == start)
+ return 0;
+
+diff -urNp linux-2.6.28.8/mm/migrate.c linux-2.6.28.8/mm/migrate.c
+--- linux-2.6.28.8/mm/migrate.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/migrate.c 2009-02-21 09:37:50.000000000 -0500
+@@ -1139,7 +1139,7 @@ int migrate_vmas(struct mm_struct *mm, c
+ struct vm_area_struct *vma;
+ int err = 0;
+
+- for(vma = mm->mmap; vma->vm_next && !err; vma = vma->vm_next) {
++ for(vma = mm->mmap; vma && !err; vma = vma->vm_next) {
+ if (vma->vm_ops && vma->vm_ops->migrate) {
+ err = vma->vm_ops->migrate(vma, to, from, flags);
+ if (err)
+diff -urNp linux-2.6.28.8/mm/mlock.c linux-2.6.28.8/mm/mlock.c
+--- linux-2.6.28.8/mm/mlock.c 2009-02-07 16:10:45.000000000 -0500
++++ linux-2.6.28.8/mm/mlock.c 2009-02-21 09:37:50.000000000 -0500
+@@ -13,6 +13,7 @@
+ #include <linux/pagemap.h>
+ #include <linux/mempolicy.h>
+ #include <linux/syscalls.h>
++#include <linux/security.h>
+ #include <linux/sched.h>
+ #include <linux/module.h>
+ #include <linux/rmap.h>
+@@ -452,6 +453,17 @@ static int do_mlock(unsigned long start,
+ return -EINVAL;
+ if (end == start)
+ return 0;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
++ if (end > SEGMEXEC_TASK_SIZE)
++ return -EINVAL;
++ } else
++#endif
++
++ if (end > TASK_SIZE)
++ return -EINVAL;
++
+ vma = find_vma_prev(current->mm, start, &prev);
+ if (!vma || vma->vm_start > start)
+ return -ENOMEM;
+@@ -511,6 +523,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, st
+ lock_limit >>= PAGE_SHIFT;
+
+ /* check against resource limits */
++ gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
+ if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
+ error = do_mlock(start, len, 1);
+ up_write(¤t->mm->mmap_sem);
+@@ -532,10 +545,10 @@ SYSCALL_DEFINE2(munlock, unsigned long,
+ static int do_mlockall(int flags)
+ {
+ struct vm_area_struct * vma, * prev = NULL;
+- unsigned int def_flags = 0;
++ unsigned int def_flags = current->mm->def_flags & ~VM_LOCKED;
+
+ if (flags & MCL_FUTURE)
+- def_flags = VM_LOCKED;
++ def_flags |= VM_LOCKED;
+ current->mm->def_flags = def_flags;
+ if (flags == MCL_FUTURE)
+ goto out;
+@@ -543,6 +556,12 @@ static int do_mlockall(int flags)
+ for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
+ unsigned int newflags;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
++ break;
++#endif
++
++ BUG_ON(vma->vm_end > TASK_SIZE);
+ newflags = vma->vm_flags | VM_LOCKED;
+ if (!(flags & MCL_CURRENT))
+ newflags &= ~VM_LOCKED;
+@@ -574,6 +593,7 @@ SYSCALL_DEFINE1(mlockall, int, flags)
+ lock_limit >>= PAGE_SHIFT;
+
+ ret = -ENOMEM;
++ gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm, 1);
+ if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
+ capable(CAP_IPC_LOCK))
+ ret = do_mlockall(flags);
+diff -urNp linux-2.6.28.8/mm/mmap.c linux-2.6.28.8/mm/mmap.c
+--- linux-2.6.28.8/mm/mmap.c 2009-02-08 00:54:27.000000000 -0500
++++ linux-2.6.28.8/mm/mmap.c 2009-02-21 09:37:50.000000000 -0500
+@@ -43,6 +43,16 @@
+ #define arch_rebalance_pgtables(addr, len) (addr)
+ #endif
+
++static inline void verify_mm_writelocked(struct mm_struct *mm)
++{
++#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
++ if (unlikely(down_read_trylock(&mm->mmap_sem))) {
++ up_read(&mm->mmap_sem);
++ BUG();
++ }
++#endif
++}
++
+ static void unmap_region(struct mm_struct *mm,
+ struct vm_area_struct *vma, struct vm_area_struct *prev,
+ unsigned long start, unsigned long end);
+@@ -68,16 +78,25 @@ static void unmap_region(struct mm_struc
+ * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
+ *
+ */
+-pgprot_t protection_map[16] = {
++pgprot_t protection_map[16] __read_only = {
+ __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
+ __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
+ };
+
+ pgprot_t vm_get_page_prot(unsigned long vm_flags)
+ {
+- return __pgprot(pgprot_val(protection_map[vm_flags &
++ pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
+ (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
+ pgprot_val(arch_vm_get_page_prot(vm_flags)));
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
++ if (!nx_enabled &&
++ (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
++ (vm_flags & (VM_READ | VM_WRITE)))
++ prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
++#endif
++
++ return prot;
+ }
+ EXPORT_SYMBOL(vm_get_page_prot);
+
+@@ -233,6 +252,7 @@ static struct vm_area_struct *remove_vma
+ struct vm_area_struct *next = vma->vm_next;
+
+ might_sleep();
++ BUG_ON(vma->vm_mirror);
+ if (vma->vm_ops && vma->vm_ops->close)
+ vma->vm_ops->close(vma);
+ if (vma->vm_file) {
+@@ -269,6 +289,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
+ * not page aligned -Ram Gupta
+ */
+ rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
++ gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1);
+ if (rlim < RLIM_INFINITY && (brk - mm->start_brk) +
+ (mm->end_data - mm->start_data) > rlim)
+ goto out;
+@@ -696,6 +717,12 @@ static int
+ can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
+ struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
++ return 0;
++#endif
++
+ if (is_mergeable_vma(vma, file, vm_flags) &&
+ is_mergeable_anon_vma(anon_vma, vma->anon_vma)) {
+ if (vma->vm_pgoff == vm_pgoff)
+@@ -715,6 +742,12 @@ static int
+ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
+ struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
++ return 0;
++#endif
++
+ if (is_mergeable_vma(vma, file, vm_flags) &&
+ is_mergeable_anon_vma(anon_vma, vma->anon_vma)) {
+ pgoff_t vm_pglen;
+@@ -757,12 +790,19 @@ can_vma_merge_after(struct vm_area_struc
+ struct vm_area_struct *vma_merge(struct mm_struct *mm,
+ struct vm_area_struct *prev, unsigned long addr,
+ unsigned long end, unsigned long vm_flags,
+- struct anon_vma *anon_vma, struct file *file,
++ struct anon_vma *anon_vma, struct file *file,
+ pgoff_t pgoff, struct mempolicy *policy)
+ {
+ pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
+ struct vm_area_struct *area, *next;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
++ struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
++
++ BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
++#endif
++
+ /*
+ * We later require that vma->vm_flags == vm_flags,
+ * so this tests vma->vm_flags & VM_SPECIAL, too.
+@@ -778,6 +818,15 @@ struct vm_area_struct *vma_merge(struct
+ if (next && next->vm_end == end) /* cases 6, 7, 8 */
+ next = next->vm_next;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (prev)
++ prev_m = pax_find_mirror_vma(prev);
++ if (area)
++ area_m = pax_find_mirror_vma(area);
++ if (next)
++ next_m = pax_find_mirror_vma(next);
++#endif
++
+ /*
+ * Can it merge with the predecessor?
+ */
+@@ -797,9 +846,24 @@ struct vm_area_struct *vma_merge(struct
+ /* cases 1, 6 */
+ vma_adjust(prev, prev->vm_start,
+ next->vm_end, prev->vm_pgoff, NULL);
+- } else /* cases 2, 5, 7 */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (prev_m)
++ vma_adjust(prev_m, prev_m->vm_start,
++ next_m->vm_end, prev_m->vm_pgoff, NULL);
++#endif
++
++ } else { /* cases 2, 5, 7 */
+ vma_adjust(prev, prev->vm_start,
+ end, prev->vm_pgoff, NULL);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (prev_m)
++ vma_adjust(prev_m, prev_m->vm_start,
++ end_m, prev_m->vm_pgoff, NULL);
++#endif
++
++ }
+ return prev;
+ }
+
+@@ -810,12 +874,27 @@ struct vm_area_struct *vma_merge(struct
+ mpol_equal(policy, vma_policy(next)) &&
+ can_vma_merge_before(next, vm_flags,
+ anon_vma, file, pgoff+pglen)) {
+- if (prev && addr < prev->vm_end) /* case 4 */
++ if (prev && addr < prev->vm_end) { /* case 4 */
+ vma_adjust(prev, prev->vm_start,
+ addr, prev->vm_pgoff, NULL);
+- else /* cases 3, 8 */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (prev_m)
++ vma_adjust(prev_m, prev_m->vm_start,
++ addr_m, prev_m->vm_pgoff, NULL);
++#endif
++
++ } else { /* cases 3, 8 */
+ vma_adjust(area, addr, next->vm_end,
+ next->vm_pgoff - pglen, NULL);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (area_m)
++ vma_adjust(area_m, addr_m, next_m->vm_end,
++ next_m->vm_pgoff - pglen, NULL);
++#endif
++
++ }
+ return area;
+ }
+
+@@ -890,14 +969,11 @@ none:
+ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
+ struct file *file, long pages)
+ {
+- const unsigned long stack_flags
+- = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
+-
+ if (file) {
+ mm->shared_vm += pages;
+ if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
+ mm->exec_vm += pages;
+- } else if (flags & stack_flags)
++ } else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
+ mm->stack_vm += pages;
+ if (flags & (VM_RESERVED|VM_IO))
+ mm->reserved_vm += pages;
+@@ -925,7 +1001,7 @@ unsigned long do_mmap_pgoff(struct file
+ * (the exception is when the underlying filesystem is noexec
+ * mounted, in which case we dont add PROT_EXEC.)
+ */
+- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
++ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
+ if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
+ prot |= PROT_EXEC;
+
+@@ -935,15 +1011,15 @@ unsigned long do_mmap_pgoff(struct file
+ if (!(flags & MAP_FIXED))
+ addr = round_hint_to_min(addr);
+
+- error = arch_mmap_check(addr, len, flags);
+- if (error)
+- return error;
+-
+ /* Careful about overflows.. */
+ len = PAGE_ALIGN(len);
+ if (!len || len > TASK_SIZE)
+ return -ENOMEM;
+
++ error = arch_mmap_check(addr, len, flags);
++ if (error)
++ return error;
++
+ /* offset overflow? */
+ if ((pgoff + (len >> PAGE_SHIFT)) < pgoff)
+ return -EOVERFLOW;
+@@ -955,7 +1031,7 @@ unsigned long do_mmap_pgoff(struct file
+ /* Obtain the address to map to. we verify (or select) it and ensure
+ * that it represents a valid section of the address space.
+ */
+- addr = get_unmapped_area(file, addr, len, pgoff, flags);
++ addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
+ if (addr & ~PAGE_MASK)
+ return addr;
+
+@@ -966,6 +1042,26 @@ unsigned long do_mmap_pgoff(struct file
+ vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
+ mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
+
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (mm->pax_flags & MF_PAX_MPROTECT) {
++ if ((prot & (PROT_WRITE | PROT_EXEC)) != PROT_EXEC)
++ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
++ else
++ vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
++ }
++#endif
++
++ }
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
++ vm_flags &= ~VM_PAGEEXEC;
++#endif
++
+ if (flags & MAP_LOCKED) {
+ if (!can_do_mlock())
+ return -EPERM;
+@@ -979,6 +1075,7 @@ unsigned long do_mmap_pgoff(struct file
+ locked += mm->locked_vm;
+ lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
+ lock_limit >>= PAGE_SHIFT;
++ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
+ if (locked > lock_limit && !capable(CAP_IPC_LOCK))
+ return -EAGAIN;
+ }
+@@ -1051,6 +1148,9 @@ unsigned long do_mmap_pgoff(struct file
+ if (error)
+ return error;
+
++ if (!gr_acl_handle_mmap(file, prot))
++ return -EACCES;
++
+ return mmap_region(file, addr, len, flags, vm_flags, pgoff,
+ accountable);
+ }
+@@ -1064,10 +1164,10 @@ EXPORT_SYMBOL(do_mmap_pgoff);
+ */
+ int vma_wants_writenotify(struct vm_area_struct *vma)
+ {
+- unsigned int vm_flags = vma->vm_flags;
++ unsigned long vm_flags = vma->vm_flags;
+
+ /* If it was private or non-writable, the write bit is already clear */
+- if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
++ if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
+ return 0;
+
+ /* The backer wishes to know when pages are first written to? */
+@@ -1102,14 +1202,24 @@ unsigned long mmap_region(struct file *f
+ unsigned long charged = 0;
+ struct inode *inode = file ? file->f_path.dentry->d_inode : NULL;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m = NULL;
++#endif
++
++ /*
++ * mm->mmap_sem is required to protect against another thread
++ * changing the mappings in case we sleep.
++ */
++ verify_mm_writelocked(mm);
++
+ /* Clear old maps */
+ error = -ENOMEM;
+-munmap_back:
+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
+ if (vma && vma->vm_start < addr + len) {
+ if (do_munmap(mm, addr, len))
+ return -ENOMEM;
+- goto munmap_back;
++ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
++ BUG_ON(vma && vma->vm_start < addr + len);
+ }
+
+ /* Check against address space limit. */
+@@ -1158,6 +1268,16 @@ munmap_back:
+ goto unacct_error;
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
++ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++ if (!vma_m) {
++ error = -ENOMEM;
++ goto free_vma;
++ }
++ }
++#endif
++
+ vma->vm_mm = mm;
+ vma->vm_start = addr;
+ vma->vm_end = addr + len;
+@@ -1180,6 +1300,19 @@ munmap_back:
+ error = file->f_op->mmap(file, vma);
+ if (error)
+ goto unmap_and_free_vma;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma_m && (vm_flags & VM_EXECUTABLE))
++ added_exe_file_vma(mm);
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
++ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
++ vma->vm_flags |= VM_PAGEEXEC;
++ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
++ }
++#endif
++
+ if (vm_flags & VM_EXECUTABLE)
+ added_exe_file_vma(mm);
+ } else if (vm_flags & VM_SHARED) {
+@@ -1215,13 +1348,30 @@ munmap_back:
+ if (merged_vma) {
+ mpol_put(vma_policy(vma));
+ kmem_cache_free(vm_area_cachep, vma);
++ vma = NULL;
+ fput(file);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma_m) {
++ kmem_cache_free(vm_area_cachep, vma_m);
++
++ if (vm_flags & VM_EXECUTABLE)
++ removed_exe_file_vma(mm);
++ }
++#endif
++
+ if (vm_flags & VM_EXECUTABLE)
+ removed_exe_file_vma(mm);
+ vma = merged_vma;
+ } else {
+ vma_link(mm, vma, prev, rb_link, rb_parent);
+ file = vma->vm_file;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma_m)
++ pax_mirror_vma(vma_m, vma);
++#endif
++
+ }
+
+ /* Once vma denies write, undo our temporary denial count */
+@@ -1230,6 +1380,7 @@ munmap_back:
+ out:
+ mm->total_vm += len >> PAGE_SHIFT;
+ vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
++ track_exec_limit(mm, addr, addr + len, vm_flags);
+ if (vm_flags & VM_LOCKED) {
+ /*
+ * makes pages present; downgrades, drops, reacquires mmap_sem
+@@ -1252,6 +1403,12 @@ unmap_and_free_vma:
+ unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
+ charged = 0;
+ free_vma:
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma_m)
++ kmem_cache_free(vm_area_cachep, vma_m);
++#endif
++
+ kmem_cache_free(vm_area_cachep, vma);
+ unacct_error:
+ if (charged)
+@@ -1285,6 +1442,10 @@ arch_get_unmapped_area(struct file *filp
+ if (flags & MAP_FIXED)
+ return addr;
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ if (addr) {
+ addr = PAGE_ALIGN(addr);
+ vma = find_vma(mm, addr);
+@@ -1293,10 +1454,10 @@ arch_get_unmapped_area(struct file *filp
+ return addr;
+ }
+ if (len > mm->cached_hole_size) {
+- start_addr = addr = mm->free_area_cache;
++ start_addr = addr = mm->free_area_cache;
+ } else {
+- start_addr = addr = TASK_UNMAPPED_BASE;
+- mm->cached_hole_size = 0;
++ start_addr = addr = mm->mmap_base;
++ mm->cached_hole_size = 0;
+ }
+
+ full_search:
+@@ -1307,9 +1468,8 @@ full_search:
+ * Start a new search - just in case we missed
+ * some holes.
+ */
+- if (start_addr != TASK_UNMAPPED_BASE) {
+- addr = TASK_UNMAPPED_BASE;
+- start_addr = addr;
++ if (start_addr != mm->mmap_base) {
++ start_addr = addr = mm->mmap_base;
+ mm->cached_hole_size = 0;
+ goto full_search;
+ }
+@@ -1331,10 +1491,16 @@ full_search:
+
+ void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
++ return;
++#endif
++
+ /*
+ * Is this a new hole at the lowest possible address?
+ */
+- if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache) {
++ if (addr >= mm->mmap_base && addr < mm->free_area_cache) {
+ mm->free_area_cache = addr;
+ mm->cached_hole_size = ~0UL;
+ }
+@@ -1352,7 +1518,7 @@ arch_get_unmapped_area_topdown(struct fi
+ {
+ struct vm_area_struct *vma;
+ struct mm_struct *mm = current->mm;
+- unsigned long addr = addr0;
++ unsigned long base = mm->mmap_base, addr = addr0;
+
+ /* requested length too big for entire address space */
+ if (len > TASK_SIZE)
+@@ -1361,6 +1527,10 @@ arch_get_unmapped_area_topdown(struct fi
+ if (flags & MAP_FIXED)
+ return addr;
+
++#ifdef CONFIG_PAX_RANDMMAP
++ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ /* requesting a specific address */
+ if (addr) {
+ addr = PAGE_ALIGN(addr);
+@@ -1418,13 +1588,21 @@ bottomup:
+ * can happen with large stack limits and large mmap()
+ * allocations.
+ */
++ mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
++ mm->free_area_cache = mm->mmap_base;
+ mm->cached_hole_size = ~0UL;
+- mm->free_area_cache = TASK_UNMAPPED_BASE;
+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
+ /*
+ * Restore the topdown base:
+ */
+- mm->free_area_cache = mm->mmap_base;
++ mm->mmap_base = base;
++ mm->free_area_cache = base;
+ mm->cached_hole_size = ~0UL;
+
+ return addr;
+@@ -1433,6 +1611,12 @@ bottomup:
+
+ void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
++ return;
++#endif
++
+ /*
+ * Is this a new hole at the highest possible address?
+ */
+@@ -1440,8 +1624,10 @@ void arch_unmap_area_topdown(struct mm_s
+ mm->free_area_cache = addr;
+
+ /* dont allow allocations above current base */
+- if (mm->free_area_cache > mm->mmap_base)
++ if (mm->free_area_cache > mm->mmap_base) {
+ mm->free_area_cache = mm->mmap_base;
++ mm->cached_hole_size = ~0UL;
++ }
+ }
+
+ unsigned long
+@@ -1541,6 +1727,27 @@ out:
+ return prev ? prev->vm_next : vma;
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
++{
++ struct vm_area_struct *vma_m;
++
++ BUG_ON(!vma || vma->vm_start >= vma->vm_end);
++ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
++ BUG_ON(vma->vm_mirror);
++ return NULL;
++ }
++ BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
++ vma_m = vma->vm_mirror;
++ BUG_ON(!vma_m || vma_m->vm_mirror != vma);
++ BUG_ON(vma->vm_file != vma_m->vm_file);
++ BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
++ BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff || vma->anon_vma != vma_m->anon_vma);
++ BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
++ return vma_m;
++}
++#endif
++
+ /*
+ * Verify that the stack growth is acceptable and
+ * update accounting. This is shared with both the
+@@ -1557,6 +1764,7 @@ static int acct_stack_growth(struct vm_a
+ return -ENOMEM;
+
+ /* Stack limit test */
++ gr_learn_resource(current, RLIMIT_STACK, size, 1);
+ if (size > rlim[RLIMIT_STACK].rlim_cur)
+ return -ENOMEM;
+
+@@ -1566,6 +1774,7 @@ static int acct_stack_growth(struct vm_a
+ unsigned long limit;
+ locked = mm->locked_vm + grow;
+ limit = rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT;
++ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
+ if (locked > limit && !capable(CAP_IPC_LOCK))
+ return -ENOMEM;
+ }
+@@ -1580,7 +1789,7 @@ static int acct_stack_growth(struct vm_a
+ * Overcommit.. This must be the final test, as it will
+ * update security statistics.
+ */
+- if (security_vm_enough_memory(grow))
++ if (security_vm_enough_memory_mm(mm, grow))
+ return -ENOMEM;
+
+ /* Ok, everything looks good - let it rip */
+@@ -1601,35 +1810,40 @@ static
+ #endif
+ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
+ {
+- int error;
++ int error, locknext;
+
+ if (!(vma->vm_flags & VM_GROWSUP))
+ return -EFAULT;
+
++ /* Also guard against wrapping around to address 0. */
++ if (address < PAGE_ALIGN(address+1))
++ address = PAGE_ALIGN(address+1);
++ else
++ return -ENOMEM;
++
+ /*
+ * We must make sure the anon_vma is allocated
+ * so that the anon_vma locking is not a noop.
+ */
+ if (unlikely(anon_vma_prepare(vma)))
+ return -ENOMEM;
++ locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
++ if (locknext && unlikely(anon_vma_prepare(vma->vm_next)))
++ return -ENOMEM;
+ anon_vma_lock(vma);
++ if (locknext)
++ anon_vma_lock(vma->vm_next);
+
+ /*
+ * vma->vm_start/vm_end cannot change under us because the caller
+ * is required to hold the mmap_sem in read mode. We need the
+- * anon_vma lock to serialize against concurrent expand_stacks.
+- * Also guard against wrapping around to address 0.
++ * anon_vma locks to serialize against concurrent expand_stacks
++ * and expand_upwards.
+ */
+- if (address < PAGE_ALIGN(address+4))
+- address = PAGE_ALIGN(address+4);
+- else {
+- anon_vma_unlock(vma);
+- return -ENOMEM;
+- }
+ error = 0;
+
+ /* Somebody else might have raced and expanded it already */
+- if (address > vma->vm_end) {
++ if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
+ unsigned long size, grow;
+
+ size = address - vma->vm_start;
+@@ -1639,6 +1853,8 @@ int expand_upwards(struct vm_area_struct
+ if (!error)
+ vma->vm_end = address;
+ }
++ if (locknext)
++ anon_vma_unlock(vma->vm_next);
+ anon_vma_unlock(vma);
+ return error;
+ }
+@@ -1650,7 +1866,8 @@ int expand_upwards(struct vm_area_struct
+ static int expand_downwards(struct vm_area_struct *vma,
+ unsigned long address)
+ {
+- int error;
++ int error, lockprev = 0;
++ struct vm_area_struct *prev = NULL;
+
+ /*
+ * We must make sure the anon_vma is allocated
+@@ -1664,6 +1881,15 @@ static int expand_downwards(struct vm_ar
+ if (error)
+ return error;
+
++#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
++ find_vma_prev(vma->vm_mm, address, &prev);
++ lockprev = prev && (prev->vm_flags & VM_GROWSUP);
++#endif
++ if (lockprev && unlikely(anon_vma_prepare(prev)))
++ return -ENOMEM;
++ if (lockprev)
++ anon_vma_lock(prev);
++
+ anon_vma_lock(vma);
+
+ /*
+@@ -1673,9 +1899,15 @@ static int expand_downwards(struct vm_ar
+ */
+
+ /* Somebody else might have raced and expanded it already */
+- if (address < vma->vm_start) {
++ if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
+ unsigned long size, grow;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m;
++
++ vma_m = pax_find_mirror_vma(vma);
++#endif
++
+ size = vma->vm_end - address;
+ grow = (vma->vm_start - address) >> PAGE_SHIFT;
+
+@@ -1683,9 +1915,20 @@ static int expand_downwards(struct vm_ar
+ if (!error) {
+ vma->vm_start = address;
+ vma->vm_pgoff -= grow;
++ track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma_m) {
++ vma_m->vm_start -= grow << PAGE_SHIFT;
++ vma_m->vm_pgoff -= grow;
++ }
++#endif
++
+ }
+ }
+ anon_vma_unlock(vma);
++ if (lockprev)
++ anon_vma_unlock(prev);
+ return error;
+ }
+
+@@ -1761,6 +2004,13 @@ static void remove_vma_list(struct mm_st
+ do {
+ long nrpages = vma_pages(vma);
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
++ vma = remove_vma(vma);
++ continue;
++ }
++#endif
++
+ mm->total_vm -= nrpages;
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
+ vma = remove_vma(vma);
+@@ -1805,6 +2055,16 @@ detach_vmas_to_be_unmapped(struct mm_str
+
+ insertion_point = (prev ? &prev->vm_next : &mm->mmap);
+ do {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma->vm_mirror) {
++ BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
++ vma->vm_mirror->vm_mirror = NULL;
++ vma->vm_mirror->vm_flags &= ~VM_EXEC;
++ vma->vm_mirror = NULL;
++ }
++#endif
++
+ rb_erase(&vma->vm_rb, &mm->mm_rb);
+ mm->map_count--;
+ tail_vma = vma;
+@@ -1824,6 +2084,108 @@ detach_vmas_to_be_unmapped(struct mm_str
+ * Split a vma into two pieces at address 'addr', a new vma is allocated
+ * either for the first part or the tail.
+ */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++int split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
++ unsigned long addr, int new_below)
++{
++ struct mempolicy *pol;
++ struct vm_area_struct *new, *vma_m, *new_m = NULL;
++ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
++
++ if (is_vm_hugetlb_page(vma) && (addr & ~HPAGE_MASK))
++ return -EINVAL;
++
++ vma_m = pax_find_mirror_vma(vma);
++ if (vma_m) {
++ BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
++ if (mm->map_count >= sysctl_max_map_count-1)
++ return -ENOMEM;
++ } else if (mm->map_count >= sysctl_max_map_count)
++ return -ENOMEM;
++
++ new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
++ if (!new)
++ return -ENOMEM;
++
++ if (vma_m) {
++ new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
++ if (!new_m) {
++ kmem_cache_free(vm_area_cachep, new);
++ return -ENOMEM;
++ }
++ }
++
++ /* most fields are the same, copy all, and then fixup */
++ *new = *vma;
++
++ if (new_below)
++ new->vm_end = addr;
++ else {
++ new->vm_start = addr;
++ new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
++ }
++
++ if (vma_m) {
++ *new_m = *vma_m;
++ new_m->vm_mirror = new;
++ new->vm_mirror = new_m;
++
++ if (new_below)
++ new_m->vm_end = addr_m;
++ else {
++ new_m->vm_start = addr_m;
++ new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
++ }
++ }
++
++ pol = mpol_dup(vma_policy(vma));
++ if (IS_ERR(pol)) {
++ if (new_m)
++ kmem_cache_free(vm_area_cachep, new_m);
++ kmem_cache_free(vm_area_cachep, new);
++ return PTR_ERR(pol);
++ }
++ vma_set_policy(new, pol);
++
++ if (new->vm_file) {
++ get_file(new->vm_file);
++ if (vma->vm_flags & VM_EXECUTABLE)
++ added_exe_file_vma(mm);
++ }
++
++ if (new->vm_ops && new->vm_ops->open)
++ new->vm_ops->open(new);
++
++ if (new_below)
++ vma_adjust(vma, addr, vma->vm_end, vma->vm_pgoff +
++ ((addr - new->vm_start) >> PAGE_SHIFT), new);
++ else
++ vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
++
++ if (vma_m) {
++ mpol_get(pol);
++ vma_set_policy(new_m, pol);
++
++ if (new_m->vm_file) {
++ get_file(new_m->vm_file);
++ if (vma_m->vm_flags & VM_EXECUTABLE)
++ added_exe_file_vma(mm);
++ }
++
++ if (new_m->vm_ops && new_m->vm_ops->open)
++ new_m->vm_ops->open(new_m);
++
++ if (new_below)
++ vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
++ ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
++ else
++ vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
++ }
++
++ return 0;
++}
++#else
+ int split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
+ unsigned long addr, int new_below)
+ {
+@@ -1875,17 +2237,37 @@ int split_vma(struct mm_struct * mm, str
+
+ return 0;
+ }
++#endif
+
+ /* Munmap is split into 2 main parts -- this part which finds
+ * what needs doing, and the areas themselves, which do the
+ * work. This now handles partial unmappings.
+ * Jeremy Fitzhardinge <jeremy@goop.org>
+ */
++#ifdef CONFIG_PAX_SEGMEXEC
+ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+ {
++ int ret = __do_munmap(mm, start, len);
++ if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
++ return ret;
++
++ return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
++}
++
++int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
++#else
++int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
++#endif
++{
+ unsigned long end;
+ struct vm_area_struct *vma, *prev, *last;
+
++ /*
++ * mm->mmap_sem is required to protect against another thread
++ * changing the mappings in case we sleep.
++ */
++ verify_mm_writelocked(mm);
++
+ if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
+ return -EINVAL;
+
+@@ -1949,6 +2331,8 @@ int do_munmap(struct mm_struct *mm, unsi
+ /* Fix up all other VM information */
+ remove_vma_list(mm, vma);
+
++ track_exec_limit(mm, start, end, 0UL);
++
+ return 0;
+ }
+
+@@ -1961,22 +2345,18 @@ SYSCALL_DEFINE2(munmap, unsigned long, a
+
+ profile_munmap(addr);
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
++ (len > SEGMEXEC_TASK_SIZE || addr > SEGMEXEC_TASK_SIZE-len))
++ return -EINVAL;
++#endif
++
+ down_write(&mm->mmap_sem);
+ ret = do_munmap(mm, addr, len);
+ up_write(&mm->mmap_sem);
+ return ret;
+ }
+
+-static inline void verify_mm_writelocked(struct mm_struct *mm)
+-{
+-#ifdef CONFIG_DEBUG_VM
+- if (unlikely(down_read_trylock(&mm->mmap_sem))) {
+- WARN_ON(1);
+- up_read(&mm->mmap_sem);
+- }
+-#endif
+-}
+-
+ /*
+ * this is really a simplified "do_mmap". it only handles
+ * anonymous maps. eventually we may be able to do some
+@@ -1990,6 +2370,11 @@ unsigned long do_brk(unsigned long addr,
+ struct rb_node ** rb_link, * rb_parent;
+ pgoff_t pgoff = addr >> PAGE_SHIFT;
+ int error;
++ unsigned long charged;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m = NULL;
++#endif
+
+ len = PAGE_ALIGN(len);
+ if (!len)
+@@ -2007,19 +2392,34 @@ unsigned long do_brk(unsigned long addr,
+
+ flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
+
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++ flags &= ~VM_EXEC;
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (mm->pax_flags & MF_PAX_MPROTECT)
++ flags &= ~VM_MAYEXEC;
++#endif
++
++ }
++#endif
++
+ error = arch_mmap_check(addr, len, flags);
+ if (error)
+ return error;
+
++ charged = len >> PAGE_SHIFT;
++
+ /*
+ * mlock MCL_FUTURE?
+ */
+ if (mm->def_flags & VM_LOCKED) {
+ unsigned long locked, lock_limit;
+- locked = len >> PAGE_SHIFT;
++ locked = charged;
+ locked += mm->locked_vm;
+ lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
+ lock_limit >>= PAGE_SHIFT;
++ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
+ if (locked > lock_limit && !capable(CAP_IPC_LOCK))
+ return -EAGAIN;
+ }
+@@ -2033,22 +2433,22 @@ unsigned long do_brk(unsigned long addr,
+ /*
+ * Clear old maps. this also does some error checking for us
+ */
+- munmap_back:
+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
+ if (vma && vma->vm_start < addr + len) {
+ if (do_munmap(mm, addr, len))
+ return -ENOMEM;
+- goto munmap_back;
++ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
++ BUG_ON(vma && vma->vm_start < addr + len);
+ }
+
+ /* Check against address space limits *after* clearing old maps... */
+- if (!may_expand_vm(mm, len >> PAGE_SHIFT))
++ if (!may_expand_vm(mm, charged))
+ return -ENOMEM;
+
+ if (mm->map_count > sysctl_max_map_count)
+ return -ENOMEM;
+
+- if (security_vm_enough_memory(len >> PAGE_SHIFT))
++ if (security_vm_enough_memory(charged))
+ return -ENOMEM;
+
+ /* Can we just expand an old private anonymous mapping? */
+@@ -2062,10 +2462,21 @@ unsigned long do_brk(unsigned long addr,
+ */
+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+ if (!vma) {
+- vm_unacct_memory(len >> PAGE_SHIFT);
++ vm_unacct_memory(charged);
+ return -ENOMEM;
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (flags & VM_EXEC)) {
++ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++ if (!vma_m) {
++ kmem_cache_free(vm_area_cachep, vma);
++ vm_unacct_memory(charged);
++ return -ENOMEM;
++ }
++ }
++#endif
++
+ vma->vm_mm = mm;
+ vma->vm_start = addr;
+ vma->vm_end = addr + len;
+@@ -2074,11 +2485,12 @@ unsigned long do_brk(unsigned long addr,
+ vma->vm_page_prot = vm_get_page_prot(flags);
+ vma_link(mm, vma, prev, rb_link, rb_parent);
+ out:
+- mm->total_vm += len >> PAGE_SHIFT;
++ mm->total_vm += charged;
+ if (flags & VM_LOCKED) {
+ if (!mlock_vma_pages_range(vma, addr, addr + len))
+- mm->locked_vm += (len >> PAGE_SHIFT);
++ mm->locked_vm += charged;
+ }
++ track_exec_limit(mm, addr, addr + len, flags);
+ return addr;
+ }
+
+@@ -2124,8 +2536,10 @@ void exit_mmap(struct mm_struct *mm)
+ * Walk the list again, actually closing and freeing it,
+ * with preemption enabled, without holding any MM locks.
+ */
+- while (vma)
++ while (vma) {
++ vma->vm_mirror = NULL;
+ vma = remove_vma(vma);
++ }
+
+ BUG_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT);
+ }
+@@ -2139,6 +2553,10 @@ int insert_vm_struct(struct mm_struct *
+ struct vm_area_struct * __vma, * prev;
+ struct rb_node ** rb_link, * rb_parent;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m = NULL;
++#endif
++
+ /*
+ * The vm_pgoff of a purely anonymous vma should be irrelevant
+ * until its first write fault, when page's anon_vma and index
+@@ -2161,7 +2579,22 @@ int insert_vm_struct(struct mm_struct *
+ if ((vma->vm_flags & VM_ACCOUNT) &&
+ security_vm_enough_memory_mm(mm, vma_pages(vma)))
+ return -ENOMEM;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
++ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++ if (!vma_m)
++ return -ENOMEM;
++ }
++#endif
++
+ vma_link(mm, vma, prev, rb_link, rb_parent);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (vma_m)
++ pax_mirror_vma(vma_m, vma);
++#endif
++
+ return 0;
+ }
+
+@@ -2179,6 +2612,8 @@ struct vm_area_struct *copy_vma(struct v
+ struct rb_node **rb_link, *rb_parent;
+ struct mempolicy *pol;
+
++ BUG_ON(vma->vm_mirror);
++
+ /*
+ * If anonymous vma has not yet been faulted, update new pgoff
+ * to match new location, to increase its chance of merging.
+@@ -2222,6 +2657,35 @@ struct vm_area_struct *copy_vma(struct v
+ return new_vma;
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++void pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
++{
++ struct vm_area_struct *prev_m;
++ struct rb_node **rb_link_m, *rb_parent_m;
++ struct mempolicy *pol_m;
++
++ BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
++ BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
++ BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
++ *vma_m = *vma;
++ pol_m = vma_policy(vma_m);
++ mpol_get(pol_m);
++ vma_set_policy(vma_m, pol_m);
++ vma_m->vm_start += SEGMEXEC_TASK_SIZE;
++ vma_m->vm_end += SEGMEXEC_TASK_SIZE;
++ vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
++ vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
++ if (vma_m->vm_file)
++ get_file(vma_m->vm_file);
++ if (vma_m->vm_ops && vma_m->vm_ops->open)
++ vma_m->vm_ops->open(vma_m);
++ find_vma_prepare(vma->vm_mm, vma_m->vm_start, &prev_m, &rb_link_m, &rb_parent_m);
++ vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
++ vma_m->vm_mirror = vma;
++ vma->vm_mirror = vma_m;
++}
++#endif
++
+ /*
+ * Return true if the calling process may expand its vm space by the passed
+ * number of pages
+@@ -2232,7 +2696,7 @@ int may_expand_vm(struct mm_struct *mm,
+ unsigned long lim;
+
+ lim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT;
+-
++ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
+ if (cur + npages > lim)
+ return 0;
+ return 1;
+@@ -2301,6 +2765,15 @@ int install_special_mapping(struct mm_st
+ vma->vm_start = addr;
+ vma->vm_end = addr + len;
+
++#ifdef CONFIG_PAX_MPROTECT
++ if (mm->pax_flags & MF_PAX_MPROTECT) {
++ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
++ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
++ else
++ vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
++ }
++#endif
++
+ vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND;
+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+
+diff -urNp linux-2.6.28.8/mm/mprotect.c linux-2.6.28.8/mm/mprotect.c
+--- linux-2.6.28.8/mm/mprotect.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/mprotect.c 2009-02-21 09:37:50.000000000 -0500
+@@ -22,10 +22,16 @@
+ #include <linux/swap.h>
+ #include <linux/swapops.h>
+ #include <linux/mmu_notifier.h>
++
++#ifdef CONFIG_PAX_MPROTECT
++#include <linux/elf.h>
++#endif
++
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+ #include <asm/cacheflush.h>
+ #include <asm/tlbflush.h>
++#include <asm/mmu_context.h>
+
+ #ifndef pgprot_modify
+ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
+@@ -133,6 +139,48 @@ static void change_protection(struct vm_
+ flush_tlb_range(vma, start, end);
+ }
+
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++/* called while holding the mmap semaphor for writing except stack expansion */
++void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
++{
++ unsigned long oldlimit, newlimit = 0UL;
++
++ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || nx_enabled)
++ return;
++
++ spin_lock(&mm->page_table_lock);
++ oldlimit = mm->context.user_cs_limit;
++ if ((prot & VM_EXEC) && oldlimit < end)
++ /* USER_CS limit moved up */
++ newlimit = end;
++ else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
++ /* USER_CS limit moved down */
++ newlimit = start;
++
++ if (newlimit) {
++ mm->context.user_cs_limit = newlimit;
++
++#ifdef CONFIG_SMP
++ wmb();
++ cpus_clear(mm->context.cpu_user_cs_mask);
++ cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask);
++#endif
++
++ set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
++ }
++ spin_unlock(&mm->page_table_lock);
++ if (newlimit == end) {
++ struct vm_area_struct *vma = find_vma(mm, oldlimit);
++
++ for (; vma && vma->vm_start < end; vma = vma->vm_next)
++ if (is_vm_hugetlb_page(vma))
++ hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
++ else
++ change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma));
++ }
++}
++#endif
++
+ int
+ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
+ unsigned long start, unsigned long end, unsigned long newflags)
+@@ -145,6 +193,14 @@ mprotect_fixup(struct vm_area_struct *vm
+ int error;
+ int dirty_accountable = 0;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m = NULL;
++ unsigned long start_m, end_m;
++
++ start_m = start + SEGMEXEC_TASK_SIZE;
++ end_m = end + SEGMEXEC_TASK_SIZE;
++#endif
++
+ if (newflags == oldflags) {
+ *pprev = vma;
+ return 0;
+@@ -165,6 +221,38 @@ mprotect_fixup(struct vm_area_struct *vm
+ }
+ }
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
++ if (start != vma->vm_start) {
++ error = split_vma(mm, vma, start, 1);
++ if (error)
++ goto fail;
++ BUG_ON(!*pprev || (*pprev)->vm_next == vma);
++ *pprev = (*pprev)->vm_next;
++ }
++
++ if (end != vma->vm_end) {
++ error = split_vma(mm, vma, end, 0);
++ if (error)
++ goto fail;
++ }
++
++ if (pax_find_mirror_vma(vma)) {
++ error = __do_munmap(mm, start_m, end_m - start_m);
++ if (error)
++ goto fail;
++ } else {
++ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++ if (!vma_m) {
++ error = -ENOMEM;
++ goto fail;
++ }
++ vma->vm_flags = newflags;
++ pax_mirror_vma(vma_m, vma);
++ }
++ }
++#endif
++
+ /*
+ * First try to merge with previous and/or next vma.
+ */
+@@ -196,8 +284,14 @@ success:
+ * held in write mode.
+ */
+ vma->vm_flags = newflags;
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (current->binfmt && current->binfmt->handle_mprotect)
++ current->binfmt->handle_mprotect(vma, newflags);
++#endif
++
+ vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
+- vm_get_page_prot(newflags));
++ vm_get_page_prot(vma->vm_flags));
+
+ if (vma_wants_writenotify(vma)) {
+ vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
+@@ -238,6 +332,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
+ end = start + len;
+ if (end <= start)
+ return -ENOMEM;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
++ if (end > SEGMEXEC_TASK_SIZE)
++ return -EINVAL;
++ } else
++#endif
++
++ if (end > TASK_SIZE)
++ return -EINVAL;
++
+ if (!arch_validate_prot(prot))
+ return -EINVAL;
+
+@@ -245,7 +350,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
+ /*
+ * Does the application expect PROT_READ to imply PROT_EXEC:
+ */
+- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
++ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
+ prot |= PROT_EXEC;
+
+ vm_flags = calc_vm_prot_bits(prot);
+@@ -277,6 +382,16 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
+ if (start > vma->vm_start)
+ prev = vma;
+
++ if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
++ error = -EACCES;
++ goto out;
++ }
++
++#ifdef CONFIG_PAX_MPROTECT
++ if (current->binfmt && current->binfmt->handle_mprotect)
++ current->binfmt->handle_mprotect(vma, vm_flags);
++#endif
++
+ for (nstart = start ; ; ) {
+ unsigned long newflags;
+
+@@ -300,6 +415,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long,
+ error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
+ if (error)
+ goto out;
++
++ track_exec_limit(current->mm, nstart, tmp, vm_flags);
++
+ nstart = tmp;
+
+ if (nstart < prev->vm_end)
+diff -urNp linux-2.6.28.8/mm/mremap.c linux-2.6.28.8/mm/mremap.c
+--- linux-2.6.28.8/mm/mremap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/mremap.c 2009-02-21 09:37:50.000000000 -0500
+@@ -113,6 +113,12 @@ static void move_ptes(struct vm_area_str
+ continue;
+ pte = ptep_clear_flush(vma, old_addr, old_pte);
+ pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++ if (!nx_enabled && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
++ pte = pte_exprotect(pte);
++#endif
++
+ set_pte_at(mm, new_addr, new_pte, pte);
+ }
+
+@@ -262,6 +268,7 @@ unsigned long do_mremap(unsigned long ad
+ struct vm_area_struct *vma;
+ unsigned long ret = -EINVAL;
+ unsigned long charged = 0;
++ unsigned long pax_task_size = TASK_SIZE;
+
+ if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
+ goto out;
+@@ -280,6 +287,15 @@ unsigned long do_mremap(unsigned long ad
+ if (!new_len)
+ goto out;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
++ pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++ if (new_len > pax_task_size || addr > pax_task_size-new_len ||
++ old_len > pax_task_size || addr > pax_task_size-old_len)
++ goto out;
++
+ /* new_addr is only valid if MREMAP_FIXED is specified */
+ if (flags & MREMAP_FIXED) {
+ if (new_addr & ~PAGE_MASK)
+@@ -287,16 +303,13 @@ unsigned long do_mremap(unsigned long ad
+ if (!(flags & MREMAP_MAYMOVE))
+ goto out;
+
+- if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
++ if (new_addr > pax_task_size - new_len)
+ goto out;
+
+ /* Check if the location we're moving into overlaps the
+ * old location at all, and fail if it does.
+ */
+- if ((new_addr <= addr) && (new_addr+new_len) > addr)
+- goto out;
+-
+- if ((addr <= new_addr) && (addr+old_len) > new_addr)
++ if (addr + old_len > new_addr && new_addr + new_len > addr)
+ goto out;
+
+ ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
+@@ -334,6 +347,14 @@ unsigned long do_mremap(unsigned long ad
+ ret = -EINVAL;
+ goto out;
+ }
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ if (pax_find_mirror_vma(vma)) {
++ ret = -EINVAL;
++ goto out;
++ }
++#endif
++
+ /* We can't remap across vm area boundaries */
+ if (old_len > vma->vm_end - addr)
+ goto out;
+@@ -367,7 +388,7 @@ unsigned long do_mremap(unsigned long ad
+ if (old_len == vma->vm_end - addr &&
+ !((flags & MREMAP_FIXED) && (addr != new_addr)) &&
+ (old_len != new_len || !(flags & MREMAP_MAYMOVE))) {
+- unsigned long max_addr = TASK_SIZE;
++ unsigned long max_addr = pax_task_size;
+ if (vma->vm_next)
+ max_addr = vma->vm_next->vm_start;
+ /* can we just expand the current mapping? */
+@@ -385,6 +406,7 @@ unsigned long do_mremap(unsigned long ad
+ addr + new_len);
+ }
+ ret = addr;
++ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
+ goto out;
+ }
+ }
+@@ -395,8 +417,8 @@ unsigned long do_mremap(unsigned long ad
+ */
+ ret = -ENOMEM;
+ if (flags & MREMAP_MAYMOVE) {
++ unsigned long map_flags = 0;
+ if (!(flags & MREMAP_FIXED)) {
+- unsigned long map_flags = 0;
+ if (vma->vm_flags & VM_MAYSHARE)
+ map_flags |= MAP_SHARED;
+
+@@ -411,7 +433,12 @@ unsigned long do_mremap(unsigned long ad
+ if (ret)
+ goto out;
+ }
++ map_flags = vma->vm_flags;
+ ret = move_vma(vma, addr, old_len, new_len, new_addr);
++ if (!(ret & ~PAGE_MASK)) {
++ track_exec_limit(current->mm, addr, addr + old_len, 0UL);
++ track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
++ }
+ }
+ out:
+ if (ret & ~PAGE_MASK)
+diff -urNp linux-2.6.28.8/mm/nommu.c linux-2.6.28.8/mm/nommu.c
+--- linux-2.6.28.8/mm/nommu.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/nommu.c 2009-02-21 09:37:50.000000000 -0500
+@@ -459,15 +459,6 @@ struct vm_area_struct *find_vma(struct m
+ }
+ EXPORT_SYMBOL(find_vma);
+
+-/*
+- * find a VMA
+- * - we don't extend stack VMAs under NOMMU conditions
+- */
+-struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
+-{
+- return find_vma(mm, addr);
+-}
+-
+ int expand_stack(struct vm_area_struct *vma, unsigned long address)
+ {
+ return -ENOMEM;
+diff -urNp linux-2.6.28.8/mm/page_alloc.c linux-2.6.28.8/mm/page_alloc.c
+--- linux-2.6.28.8/mm/page_alloc.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/mm/page_alloc.c 2009-03-07 10:29:51.000000000 -0500
+@@ -525,6 +525,10 @@ static void __free_pages_ok(struct page
+ int i;
+ int reserved = 0;
+
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++ unsigned long index = 1UL << order;
++#endif
++
+ for (i = 0 ; i < (1 << order) ; ++i)
+ reserved += free_pages_check(page + i);
+ if (reserved)
+@@ -535,6 +539,12 @@ static void __free_pages_ok(struct page
+ debug_check_no_obj_freed(page_address(page),
+ PAGE_SIZE << order);
+ }
++
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++ for (; index; --index)
++ sanitize_highpage(page + index - 1);
++#endif
++
+ arch_free_page(page, order);
+ kernel_map_pages(page, 1 << order, 0);
+
+@@ -635,8 +645,10 @@ static int prep_new_page(struct page *pa
+ arch_alloc_page(page, order);
+ kernel_map_pages(page, 1 << order, 1);
+
++#ifndef CONFIG_PAX_MEMORY_SANITIZE
+ if (gfp_flags & __GFP_ZERO)
+ prep_zero_page(page, order, gfp_flags);
++#endif
+
+ if (order && (gfp_flags & __GFP_COMP))
+ prep_compound_page(page, order);
+@@ -997,6 +1009,11 @@ static void free_hot_cold_page(struct pa
+ debug_check_no_locks_freed(page_address(page), PAGE_SIZE);
+ debug_check_no_obj_freed(page_address(page), PAGE_SIZE);
+ }
++
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++ sanitize_highpage(page);
++#endif
++
+ arch_free_page(page, 0);
+ kernel_map_pages(page, 1, 0);
+
+diff -urNp linux-2.6.28.8/mm/rmap.c linux-2.6.28.8/mm/rmap.c
+--- linux-2.6.28.8/mm/rmap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/rmap.c 2009-02-21 09:37:50.000000000 -0500
+@@ -103,6 +103,10 @@ int anon_vma_prepare(struct vm_area_stru
+ struct mm_struct *mm = vma->vm_mm;
+ struct anon_vma *allocated;
+
++#ifdef CONFIG_PAX_SEGMEXEC
++ struct vm_area_struct *vma_m;
++#endif
++
+ anon_vma = find_mergeable_anon_vma(vma);
+ allocated = NULL;
+ if (!anon_vma) {
+@@ -116,6 +120,15 @@ int anon_vma_prepare(struct vm_area_stru
+ /* page_table_lock to protect against threads */
+ spin_lock(&mm->page_table_lock);
+ if (likely(!vma->anon_vma)) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++ vma_m = pax_find_mirror_vma(vma);
++ if (vma_m) {
++ vma_m->anon_vma = anon_vma;
++ __anon_vma_link(vma_m);
++ }
++#endif
++
+ vma->anon_vma = anon_vma;
+ list_add_tail(&vma->anon_vma_node, &anon_vma->head);
+ allocated = NULL;
+diff -urNp linux-2.6.28.8/mm/shmem.c linux-2.6.28.8/mm/shmem.c
+--- linux-2.6.28.8/mm/shmem.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/shmem.c 2009-02-21 09:37:50.000000000 -0500
+@@ -2486,7 +2486,7 @@ static struct file_system_type tmpfs_fs_
+ .get_sb = shmem_get_sb,
+ .kill_sb = kill_litter_super,
+ };
+-static struct vfsmount *shm_mnt;
++struct vfsmount *shm_mnt;
+
+ static int __init init_tmpfs(void)
+ {
+diff -urNp linux-2.6.28.8/mm/slab.c linux-2.6.28.8/mm/slab.c
+--- linux-2.6.28.8/mm/slab.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/slab.c 2009-02-21 09:37:50.000000000 -0500
+@@ -305,7 +305,7 @@ struct kmem_list3 {
+ * Need this for bootstrapping a per node allocator.
+ */
+ #define NUM_INIT_LISTS (3 * MAX_NUMNODES)
+-struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS];
++struct kmem_list3 initkmem_list3[NUM_INIT_LISTS];
+ #define CACHE_CACHE 0
+ #define SIZE_AC MAX_NUMNODES
+ #define SIZE_L3 (2 * MAX_NUMNODES)
+@@ -654,14 +654,14 @@ struct cache_names {
+ static struct cache_names __initdata cache_names[] = {
+ #define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)" },
+ #include <linux/kmalloc_sizes.h>
+- {NULL,}
++ {NULL, NULL}
+ #undef CACHE
+ };
+
+ static struct arraycache_init initarray_cache __initdata =
+- { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} };
++ { {0, BOOT_CPUCACHE_ENTRIES, 1, 0}, {NULL} };
+ static struct arraycache_init initarray_generic =
+- { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} };
++ { {0, BOOT_CPUCACHE_ENTRIES, 1, 0}, {NULL} };
+
+ /* internal cache of cache description objs */
+ static struct kmem_cache cache_cache = {
+@@ -2997,7 +2997,7 @@ retry:
+ * there must be at least one object available for
+ * allocation.
+ */
+- BUG_ON(slabp->inuse < 0 || slabp->inuse >= cachep->num);
++ BUG_ON(slabp->inuse >= cachep->num);
+
+ while (slabp->inuse < cachep->num && batchcount--) {
+ STATS_INC_ALLOCED(cachep);
+@@ -4491,10 +4491,12 @@ static const struct file_operations proc
+
+ static int __init slab_proc_init(void)
+ {
++#if !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
+ #ifdef CONFIG_DEBUG_SLAB_LEAK
+ proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
+ #endif
++#endif
+ return 0;
+ }
+ module_init(slab_proc_init);
+diff -urNp linux-2.6.28.8/mm/slub.c linux-2.6.28.8/mm/slub.c
+--- linux-2.6.28.8/mm/slub.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/slub.c 2009-02-21 09:37:50.000000000 -0500
+@@ -4508,7 +4508,9 @@ static const struct file_operations proc
+
+ static int __init slab_proc_init(void)
+ {
++#if !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
++#endif
+ return 0;
+ }
+ module_init(slab_proc_init);
+diff -urNp linux-2.6.28.8/mm/tiny-shmem.c linux-2.6.28.8/mm/tiny-shmem.c
+--- linux-2.6.28.8/mm/tiny-shmem.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/tiny-shmem.c 2009-02-21 09:37:50.000000000 -0500
+@@ -26,7 +26,7 @@ static struct file_system_type tmpfs_fs_
+ .kill_sb = kill_litter_super,
+ };
+
+-static struct vfsmount *shm_mnt;
++struct vfsmount *shm_mnt;
+
+ static int __init init_tmpfs(void)
+ {
+diff -urNp linux-2.6.28.8/mm/util.c linux-2.6.28.8/mm/util.c
+--- linux-2.6.28.8/mm/util.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/mm/util.c 2009-02-21 09:37:50.000000000 -0500
+@@ -167,6 +167,12 @@ EXPORT_SYMBOL(strndup_user);
+ void arch_pick_mmap_layout(struct mm_struct *mm)
+ {
+ mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++ if (mm->pax_flags & MF_PAX_RANDMMAP)
++ mm->mmap_base += mm->delta_mmap;
++#endif
++
+ mm->get_unmapped_area = arch_get_unmapped_area;
+ mm->unmap_area = arch_unmap_area;
+ }
+diff -urNp linux-2.6.28.8/mm/vmalloc.c linux-2.6.28.8/mm/vmalloc.c
+--- linux-2.6.28.8/mm/vmalloc.c 2009-03-07 10:24:49.000000000 -0500
++++ linux-2.6.28.8/mm/vmalloc.c 2009-03-07 10:29:51.000000000 -0500
+@@ -90,6 +90,11 @@ static int vmap_pte_range(pmd_t *pmd, un
+ unsigned long end, pgprot_t prot, struct page **pages, int *nr)
+ {
+ pte_t *pte;
++ int ret = -ENOMEM;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ unsigned long cr0;
++#endif
+
+ /*
+ * nr is a running index into the array which helps higher level
+@@ -99,17 +104,33 @@ static int vmap_pte_range(pmd_t *pmd, un
+ pte = pte_alloc_kernel(pmd, addr);
+ if (!pte)
+ return -ENOMEM;
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_open_kernel(cr0);
++#endif
++
+ do {
+ struct page *page = pages[*nr];
+
+- if (WARN_ON(!pte_none(*pte)))
+- return -EBUSY;
+- if (WARN_ON(!page))
+- return -ENOMEM;
++ if (WARN_ON(!pte_none(*pte))) {
++ ret = -EBUSY;
++ goto out;
++ }
++ if (WARN_ON(!page)) {
++ ret = -ENOMEM;
++ goto out;
++ }
+ set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
+ (*nr)++;
+ } while (pte++, addr += PAGE_SIZE, addr != end);
+- return 0;
++ ret = 0;
++out:
++
++#ifdef CONFIG_PAX_KERNEXEC
++ pax_close_kernel(cr0);
++#endif
++
++ return ret;
+ }
+
+ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
+@@ -1033,6 +1054,16 @@ static struct vm_struct *__get_vm_area_n
+ unsigned long align = 1;
+
+ BUG_ON(in_interrupt());
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++ if (flags & VM_KERNEXEC) {
++ if (start != VMALLOC_START || end != VMALLOC_END)
++ return NULL;
++ start = (unsigned long)MODULES_VADDR;
++ end = (unsigned long)MODULES_END;
++ }
++#endif
++
+ if (flags & VM_IOREMAP) {
+ int bit = fls(size);
+
+@@ -1256,6 +1287,11 @@ void *vmap(struct page **pages, unsigned
+ if (count > num_physpages)
+ return NULL;
+
++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++ if (!(pgprot_val(prot) & _PAGE_NX))
++ flags |= VM_KERNEXEC;
++#endif
++
+ area = get_vm_area_caller((count << PAGE_SHIFT), flags,
+ __builtin_return_address(0));
+ if (!area)
+@@ -1352,6 +1388,13 @@ static void *__vmalloc_node(unsigned lon
+ if (!size || (size >> PAGE_SHIFT) > num_physpages)
+ return NULL;
+
++#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++ if (!(pgprot_val(prot) & _PAGE_NX))
++ area = __get_vm_area_node(size, VM_ALLOC | VM_KERNEXEC, VMALLOC_START, VMALLOC_END,
++ node, gfp_mask, caller);
++ else
++#endif
++
+ area = __get_vm_area_node(size, VM_ALLOC, VMALLOC_START, VMALLOC_END,
+ node, gfp_mask, caller);
+
+@@ -1441,7 +1484,7 @@ EXPORT_SYMBOL(vmalloc_node);
+
+ void *vmalloc_exec(unsigned long size)
+ {
+- return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
++ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC);
+ }
+
+ #if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
+diff -urNp linux-2.6.28.8/net/bridge/br_stp_if.c linux-2.6.28.8/net/bridge/br_stp_if.c
+--- linux-2.6.28.8/net/bridge/br_stp_if.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/bridge/br_stp_if.c 2009-02-21 09:37:50.000000000 -0500
+@@ -146,7 +146,7 @@ static void br_stp_stop(struct net_bridg
+ char *envp[] = { NULL };
+
+ if (br->stp_enabled == BR_USER_STP) {
+- r = call_usermodehelper(BR_STP_PROG, argv, envp, 1);
++ r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC);
+ printk(KERN_INFO "%s: userspace STP stopped, return code %d\n",
+ br->dev->name, r);
+
+diff -urNp linux-2.6.28.8/net/core/flow.c linux-2.6.28.8/net/core/flow.c
+--- linux-2.6.28.8/net/core/flow.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/core/flow.c 2009-02-21 09:37:50.000000000 -0500
+@@ -39,7 +39,7 @@ atomic_t flow_cache_genid = ATOMIC_INIT(
+
+ static u32 flow_hash_shift;
+ #define flow_hash_size (1 << flow_hash_shift)
+-static DEFINE_PER_CPU(struct flow_cache_entry **, flow_tables) = { NULL };
++static DEFINE_PER_CPU(struct flow_cache_entry **, flow_tables);
+
+ #define flow_table(cpu) (per_cpu(flow_tables, cpu))
+
+@@ -52,7 +52,7 @@ struct flow_percpu_info {
+ u32 hash_rnd;
+ int count;
+ };
+-static DEFINE_PER_CPU(struct flow_percpu_info, flow_hash_info) = { 0 };
++static DEFINE_PER_CPU(struct flow_percpu_info, flow_hash_info);
+
+ #define flow_hash_rnd_recalc(cpu) \
+ (per_cpu(flow_hash_info, cpu).hash_rnd_recalc)
+@@ -69,7 +69,7 @@ struct flow_flush_info {
+ atomic_t cpuleft;
+ struct completion completion;
+ };
+-static DEFINE_PER_CPU(struct tasklet_struct, flow_flush_tasklets) = { NULL };
++static DEFINE_PER_CPU(struct tasklet_struct, flow_flush_tasklets);
+
+ #define flow_flush_tasklet(cpu) (&per_cpu(flow_flush_tasklets, cpu))
+
+diff -urNp linux-2.6.28.8/net/dccp/ccids/ccid3.c linux-2.6.28.8/net/dccp/ccids/ccid3.c
+--- linux-2.6.28.8/net/dccp/ccids/ccid3.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/dccp/ccids/ccid3.c 2009-02-21 09:37:50.000000000 -0500
+@@ -43,7 +43,7 @@
+ static int ccid3_debug;
+ #define ccid3_pr_debug(format, a...) DCCP_PR_DEBUG(ccid3_debug, format, ##a)
+ #else
+-#define ccid3_pr_debug(format, a...)
++#define ccid3_pr_debug(format, a...) do {} while (0)
+ #endif
+
+ /*
+diff -urNp linux-2.6.28.8/net/dccp/dccp.h linux-2.6.28.8/net/dccp/dccp.h
+--- linux-2.6.28.8/net/dccp/dccp.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/dccp/dccp.h 2009-02-21 09:37:50.000000000 -0500
+@@ -43,8 +43,8 @@ extern int dccp_debug;
+ #define dccp_pr_debug(format, a...) DCCP_PR_DEBUG(dccp_debug, format, ##a)
+ #define dccp_pr_debug_cat(format, a...) DCCP_PRINTK(dccp_debug, format, ##a)
+ #else
+-#define dccp_pr_debug(format, a...)
+-#define dccp_pr_debug_cat(format, a...)
++#define dccp_pr_debug(format, a...) do {} while (0)
++#define dccp_pr_debug_cat(format, a...) do {} while (0)
+ #endif
+
+ extern struct inet_hashinfo dccp_hashinfo;
+diff -urNp linux-2.6.28.8/net/ipv4/inet_connection_sock.c linux-2.6.28.8/net/ipv4/inet_connection_sock.c
+--- linux-2.6.28.8/net/ipv4/inet_connection_sock.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/ipv4/inet_connection_sock.c 2009-02-21 09:37:50.000000000 -0500
+@@ -15,6 +15,7 @@
+
+ #include <linux/module.h>
+ #include <linux/jhash.h>
++#include <linux/security.h>
+
+ #include <net/inet_connection_sock.h>
+ #include <net/inet_hashtables.h>
+diff -urNp linux-2.6.28.8/net/ipv4/inet_hashtables.c linux-2.6.28.8/net/ipv4/inet_hashtables.c
+--- linux-2.6.28.8/net/ipv4/inet_hashtables.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/ipv4/inet_hashtables.c 2009-02-21 09:37:50.000000000 -0500
+@@ -18,11 +18,14 @@
+ #include <linux/sched.h>
+ #include <linux/slab.h>
+ #include <linux/wait.h>
++#include <linux/security.h>
+
+ #include <net/inet_connection_sock.h>
+ #include <net/inet_hashtables.h>
+ #include <net/ip.h>
+
++extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet);
++
+ /*
+ * Allocate and initialize a new local port bind bucket.
+ * The bindhash mutex for snum's hash chain must be held here.
+@@ -487,6 +490,8 @@ ok:
+ }
+ spin_unlock(&head->lock);
+
++ gr_update_task_in_ip_table(current, inet_sk(sk));
++
+ if (tw) {
+ inet_twsk_deschedule(tw, death_row);
+ inet_twsk_put(tw);
+diff -urNp linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c
+--- linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c 1969-12-31 19:00:00.000000000 -0500
++++ linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c 2009-02-21 09:37:50.000000000 -0500
+@@ -0,0 +1,114 @@
++/* Kernel module to add stealth support.
++ *
++ * Copyright (C) 2002-2006 Brad Spengler <spender@grsecurity.net>
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/net.h>
++#include <linux/sched.h>
++#include <linux/inet.h>
++#include <linux/stddef.h>
++
++#include <net/ip.h>
++#include <net/sock.h>
++#include <net/tcp.h>
++#include <net/udp.h>
++#include <net/route.h>
++#include <net/inet_common.h>
++
++#include <linux/netfilter_ipv4/ip_tables.h>
++
++MODULE_LICENSE("GPL");
++
++extern struct sock *udp_v4_lookup(struct net *net, u32 saddr, u16 sport, u32 daddr, u16 dport, int dif);
++
++static bool
++match(const struct sk_buff *skb,
++ const struct net_device *in,
++ const struct net_device *out,
++ const struct xt_match *match,
++ const void *matchinfo,
++ int offset,
++ unsigned int protoff,
++ bool *hotdrop)
++{
++ struct iphdr *ip = ip_hdr(skb);
++ struct tcphdr th;
++ struct udphdr uh;
++ struct sock *sk = NULL;
++
++ if (!ip || offset) return false;
++
++ switch(ip->protocol) {
++ case IPPROTO_TCP:
++ if (skb_copy_bits(skb, (ip_hdr(skb))->ihl*4, &th, sizeof(th)) < 0) {
++ *hotdrop = true;
++ return false;
++ }
++ if (!(th.syn && !th.ack)) return false;
++ sk = inet_lookup_listener(dev_net(skb->dev), &tcp_hashinfo, ip->daddr, th.dest, inet_iif(skb));
++ break;
++ case IPPROTO_UDP:
++ if (skb_copy_bits(skb, (ip_hdr(skb))->ihl*4, &uh, sizeof(uh)) < 0) {
++ *hotdrop = true;
++ return false;
++ }
++ sk = udp_v4_lookup(dev_net(skb->dev), ip->saddr, uh.source, ip->daddr, uh.dest, skb->dev->ifindex);
++ break;
++ default:
++ return false;
++ }
++
++ if(!sk) // port is being listened on, match this
++ return true;
++ else {
++ sock_put(sk);
++ return false;
++ }
++}
++
++/* Called when user tries to insert an entry of this type. */
++static bool
++checkentry(const char *tablename,
++ const void *nip,
++ const struct xt_match *match,
++ void *matchinfo,
++ unsigned int hook_mask)
++{
++ const struct ipt_ip *ip = (const struct ipt_ip *)nip;
++
++ if(((ip->proto == IPPROTO_TCP && !(ip->invflags & IPT_INV_PROTO)) ||
++ ((ip->proto == IPPROTO_UDP) && !(ip->invflags & IPT_INV_PROTO)))
++ && (hook_mask & (1 << NF_INET_LOCAL_IN)))
++ return true;
++
++ printk("stealth: Only works on TCP and UDP for the INPUT chain.\n");
++
++ return false;
++}
++
++
++static struct xt_match stealth_match __read_mostly = {
++ .name = "stealth",
++ .family = AF_INET,
++ .match = match,
++ .checkentry = checkentry,
++ .destroy = NULL,
++ .me = THIS_MODULE
++};
++
++static int __init init(void)
++{
++ return xt_register_match(&stealth_match);
++}
++
++static void __exit fini(void)
++{
++ xt_unregister_match(&stealth_match);
++}
++
++module_init(init);
++module_exit(fini);
+diff -urNp linux-2.6.28.8/net/ipv4/netfilter/Kconfig linux-2.6.28.8/net/ipv4/netfilter/Kconfig
+--- linux-2.6.28.8/net/ipv4/netfilter/Kconfig 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/ipv4/netfilter/Kconfig 2009-03-07 04:29:14.000000000 -0500
+@@ -101,6 +101,21 @@ config IP_NF_MATCH_TTL
+
+ To compile it as a module, choose M here. If unsure, say N.
+
++config IP_NF_MATCH_STEALTH
++ tristate "stealth match support"
++ depends on IP_NF_IPTABLES
++ help
++ Enabling this option will drop all syn packets coming to unserved tcp
++ ports as well as all packets coming to unserved udp ports. If you
++ are using your system to route any type of packets (ie. via NAT)
++ you should put this module at the end of your ruleset, since it will
++ drop packets that aren't going to ports that are listening on your
++ machine itself, it doesn't take into account that the packet might be
++ destined for someone on your internal network if you're using NAT for
++ instance.
++
++ To compile it as a module, choose M here. If unsure, say N.
++
+ # `filter', generic and specific targets
+ config IP_NF_FILTER
+ tristate "Packet filtering"
+diff -urNp linux-2.6.28.8/net/ipv4/netfilter/Makefile linux-2.6.28.8/net/ipv4/netfilter/Makefile
+--- linux-2.6.28.8/net/ipv4/netfilter/Makefile 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/ipv4/netfilter/Makefile 2009-02-21 09:37:50.000000000 -0500
+@@ -61,6 +61,7 @@ obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) +=
+ obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o
+ obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
+ obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
++obj-$(CONFIG_IP_NF_MATCH_STEALTH) += ipt_stealth.o
+ obj-$(CONFIG_IP_NF_TARGET_TTL) += ipt_TTL.o
+ obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o
+
+diff -urNp linux-2.6.28.8/net/ipv4/tcp_ipv4.c linux-2.6.28.8/net/ipv4/tcp_ipv4.c
+--- linux-2.6.28.8/net/ipv4/tcp_ipv4.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/ipv4/tcp_ipv4.c 2009-02-21 09:37:50.000000000 -0500
+@@ -55,6 +55,7 @@
+ #include <linux/fcntl.h>
+ #include <linux/module.h>
+ #include <linux/random.h>
++#include <linux/security.h>
+ #include <linux/cache.h>
+ #include <linux/jhash.h>
+ #include <linux/init.h>
+diff -urNp linux-2.6.28.8/net/ipv4/udp.c linux-2.6.28.8/net/ipv4/udp.c
+--- linux-2.6.28.8/net/ipv4/udp.c 2009-02-08 00:54:28.000000000 -0500
++++ linux-2.6.28.8/net/ipv4/udp.c 2009-02-21 09:37:50.000000000 -0500
+@@ -84,6 +84,7 @@
+ #include <linux/types.h>
+ #include <linux/fcntl.h>
+ #include <linux/module.h>
++#include <linux/security.h>
+ #include <linux/socket.h>
+ #include <linux/sockios.h>
+ #include <linux/igmp.h>
+@@ -104,6 +105,9 @@
+ #include <net/xfrm.h>
+ #include "udp_impl.h"
+
++extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
++extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
++
+ /*
+ * Snmp MIB for the UDP layer
+ */
+@@ -284,6 +288,13 @@ struct sock *udp4_lib_lookup(struct net
+ }
+ EXPORT_SYMBOL_GPL(udp4_lib_lookup);
+
++struct sock *udp_v4_lookup(struct net *net, __be32 saddr, __be16 sport,
++ __be32 daddr, __be16 dport, int dif)
++{
++ return __udp4_lib_lookup(net, saddr, sport, daddr, dport, dif, udp_hash);
++}
++
++
+ static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk,
+ __be16 loc_port, __be32 loc_addr,
+ __be16 rmt_port, __be32 rmt_addr,
+@@ -574,9 +585,18 @@ int udp_sendmsg(struct kiocb *iocb, stru
+ dport = usin->sin_port;
+ if (dport == 0)
+ return -EINVAL;
++
++ err = gr_search_udp_sendmsg(sk, usin);
++ if (err)
++ return err;
+ } else {
+ if (sk->sk_state != TCP_ESTABLISHED)
+ return -EDESTADDRREQ;
++
++ err = gr_search_udp_sendmsg(sk, NULL);
++ if (err)
++ return err;
++
+ daddr = inet->daddr;
+ dport = inet->dport;
+ /* Open fast path for connected socket.
+@@ -842,6 +862,10 @@ try_again:
+ if (!skb)
+ goto out;
+
++ err = gr_search_udp_recvmsg(sk, skb);
++ if (err)
++ goto out_free;
++
+ ulen = skb->len - sizeof(struct udphdr);
+ copied = len;
+ if (copied > ulen)
+diff -urNp linux-2.6.28.8/net/ipv6/exthdrs.c linux-2.6.28.8/net/ipv6/exthdrs.c
+--- linux-2.6.28.8/net/ipv6/exthdrs.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/ipv6/exthdrs.c 2009-02-21 09:37:50.000000000 -0500
+@@ -630,7 +630,7 @@ static struct tlvtype_proc tlvprochopopt
+ .type = IPV6_TLV_JUMBO,
+ .func = ipv6_hop_jumbo,
+ },
+- { -1, }
++ { -1, NULL }
+ };
+
+ int ipv6_parse_hopopts(struct sk_buff *skb)
+diff -urNp linux-2.6.28.8/net/ipv6/raw.c linux-2.6.28.8/net/ipv6/raw.c
+--- linux-2.6.28.8/net/ipv6/raw.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/ipv6/raw.c 2009-02-21 09:37:50.000000000 -0500
+@@ -600,7 +600,7 @@ out:
+ return err;
+ }
+
+-static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
++static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length,
+ struct flowi *fl, struct rt6_info *rt,
+ unsigned int flags)
+ {
+diff -urNp linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c
+--- linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c 2009-02-21 09:37:50.000000000 -0500
+@@ -371,7 +371,7 @@ static int ircomm_tty_open(struct tty_st
+ IRDA_DEBUG(2, "%s()\n", __func__ );
+
+ line = tty->index;
+- if ((line < 0) || (line >= IRCOMM_TTY_PORTS)) {
++ if (line >= IRCOMM_TTY_PORTS) {
+ return -ENODEV;
+ }
+
+diff -urNp linux-2.6.28.8/net/sctp/socket.c linux-2.6.28.8/net/sctp/socket.c
+--- linux-2.6.28.8/net/sctp/socket.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/sctp/socket.c 2009-02-21 09:37:50.000000000 -0500
+@@ -1434,7 +1434,7 @@ SCTP_STATIC int sctp_sendmsg(struct kioc
+ struct sctp_sndrcvinfo *sinfo;
+ struct sctp_initmsg *sinit;
+ sctp_assoc_t associd = 0;
+- sctp_cmsgs_t cmsgs = { NULL };
++ sctp_cmsgs_t cmsgs = { NULL, NULL };
+ int err;
+ sctp_scope_t scope;
+ long timeo;
+@@ -5616,7 +5616,6 @@ pp_found:
+ */
+ int reuse = sk->sk_reuse;
+ struct sock *sk2;
+- struct hlist_node *node;
+
+ SCTP_DEBUG_PRINTK("sctp_get_port() found a possible match\n");
+ if (pp->fastreuse && sk->sk_reuse &&
+diff -urNp linux-2.6.28.8/net/socket.c linux-2.6.28.8/net/socket.c
+--- linux-2.6.28.8/net/socket.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/socket.c 2009-03-07 04:29:14.000000000 -0500
+@@ -87,6 +87,7 @@
+ #include <linux/audit.h>
+ #include <linux/wireless.h>
+ #include <linux/nsproxy.h>
++#include <linux/in.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+@@ -97,6 +98,21 @@
+ #include <net/sock.h>
+ #include <linux/netfilter.h>
+
++extern void gr_attach_curr_ip(const struct sock *sk);
++extern int gr_handle_sock_all(const int family, const int type,
++ const int protocol);
++extern int gr_handle_sock_server(const struct sockaddr *sck);
++extern int gr_handle_sock_server_other(const struct socket *sck);
++extern int gr_handle_sock_client(const struct sockaddr *sck);
++extern int gr_search_connect(struct socket * sock,
++ struct sockaddr_in * addr);
++extern int gr_search_bind(struct socket * sock,
++ struct sockaddr_in * addr);
++extern int gr_search_listen(struct socket * sock);
++extern int gr_search_accept(struct socket * sock);
++extern int gr_search_socket(const int domain, const int type,
++ const int protocol);
++
+ static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
+ static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t pos);
+@@ -300,7 +316,7 @@ static int sockfs_get_sb(struct file_sys
+ mnt);
+ }
+
+-static struct vfsmount *sock_mnt __read_mostly;
++struct vfsmount *sock_mnt __read_mostly;
+
+ static struct file_system_type sock_fs_type = {
+ .name = "sockfs",
+@@ -1235,6 +1251,16 @@ SYSCALL_DEFINE3(socket, int, family, int
+ if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
+ flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
+
++ if(!gr_search_socket(family, type, protocol)) {
++ retval = -EACCES;
++ goto out;
++ }
++
++ if (gr_handle_sock_all(family, type, protocol)) {
++ retval = -EACCES;
++ goto out;
++ }
++
+ retval = sock_create(family, type, protocol, &sock);
+ if (retval < 0)
+ goto out;
+@@ -1374,6 +1400,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct so
+ if (sock) {
+ err = move_addr_to_kernel(umyaddr, addrlen, (struct sockaddr *)&address);
+ if (err >= 0) {
++ if (gr_handle_sock_server((struct sockaddr *)&address)) {
++ err = -EACCES;
++ goto error;
++ }
++ err = gr_search_bind(sock, (struct sockaddr_in *)&address);
++ if (err)
++ goto error;
++
+ err = security_socket_bind(sock,
+ (struct sockaddr *)&address,
+ addrlen);
+@@ -1382,6 +1416,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct so
+ (struct sockaddr *)
+ &address, addrlen);
+ }
++error:
+ fput_light(sock->file, fput_needed);
+ }
+ return err;
+@@ -1405,10 +1440,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, ba
+ if ((unsigned)backlog > somaxconn)
+ backlog = somaxconn;
+
++ if (gr_handle_sock_server_other(sock)) {
++ err = -EPERM;
++ goto error;
++ }
++
++ err = gr_search_listen(sock);
++ if (err)
++ goto error;
++
+ err = security_socket_listen(sock, backlog);
+ if (!err)
+ err = sock->ops->listen(sock, backlog);
+
++error:
+ fput_light(sock->file, fput_needed);
+ }
+ return err;
+@@ -1451,6 +1496,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct
+ newsock->type = sock->type;
+ newsock->ops = sock->ops;
+
++ if (gr_handle_sock_server_other(sock)) {
++ err = -EPERM;
++ sock_release(newsock);
++ goto out_put;
++ }
++
++ err = gr_search_accept(sock);
++ if (err) {
++ sock_release(newsock);
++ goto out_put;
++ }
++
+ /*
+ * We don't need try_module_get here, as the listening socket (sock)
+ * has the protocol module (sock->ops->owner) held.
+@@ -1494,6 +1551,7 @@ SYSCALL_DEFINE4(accept4, int, fd, struct
+ err = newfd;
+
+ security_socket_post_accept(sock, newsock);
++ gr_attach_curr_ip(newsock->sk);
+
+ out_put:
+ fput_light(sock->file, fput_needed);
+@@ -1532,6 +1590,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct
+ int, addrlen)
+ {
+ struct socket *sock;
++ struct sockaddr *sck;
+ struct sockaddr_storage address;
+ int err, fput_needed;
+
+@@ -1542,6 +1601,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct
+ if (err < 0)
+ goto out_put;
+
++ sck = (struct sockaddr *)&address;
++
++ if (gr_handle_sock_client(sck)) {
++ err = -EACCES;
++ goto out_put;
++ }
++
++ err = gr_search_connect(sock, (struct sockaddr_in *)sck);
++ if (err)
++ goto out_put;
++
+ err =
+ security_socket_connect(sock, (struct sockaddr *)&address, addrlen);
+ if (err)
+diff -urNp linux-2.6.28.8/net/unix/af_unix.c linux-2.6.28.8/net/unix/af_unix.c
+--- linux-2.6.28.8/net/unix/af_unix.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/net/unix/af_unix.c 2009-02-21 09:37:50.000000000 -0500
+@@ -727,6 +727,12 @@ static struct sock *unix_find_other(stru
+ err = -ECONNREFUSED;
+ if (!S_ISSOCK(inode->i_mode))
+ goto put_fail;
++
++ if (!gr_acl_handle_unix(path.dentry, path.mnt)) {
++ err = -EACCES;
++ goto put_fail;
++ }
++
+ u = unix_find_socket_byinode(net, inode);
+ if (!u)
+ goto put_fail;
+@@ -747,6 +753,13 @@ static struct sock *unix_find_other(stru
+ if (u) {
+ struct dentry *dentry;
+ dentry = unix_sk(u)->dentry;
++
++ if (!gr_handle_chroot_unix(u->sk_peercred.pid)) {
++ err = -EPERM;
++ sock_put(u);
++ goto fail;
++ }
++
+ if (dentry)
+ touch_atime(unix_sk(u)->mnt, dentry);
+ } else
+@@ -829,10 +842,20 @@ static int unix_bind(struct socket *sock
+ err = mnt_want_write(nd.path.mnt);
+ if (err)
+ goto out_mknod_dput;
++
++ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) {
++ err = -EACCES;
++ mnt_drop_write(nd.path.mnt);
++ goto out_mknod_dput;
++ }
++
+ err = vfs_mknod(nd.path.dentry->d_inode, dentry, mode, 0);
+ mnt_drop_write(nd.path.mnt);
+ if (err)
+ goto out_mknod_dput;
++
++ gr_handle_create(dentry, nd.path.mnt);
++
+ mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
+ dput(nd.path.dentry);
+ nd.path.dentry = dentry;
+@@ -850,6 +873,10 @@ static int unix_bind(struct socket *sock
+ goto out_unlock;
+ }
+
++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
++ sk->sk_peercred.pid = current->pid;
++#endif
++
+ list = &unix_socket_table[addr->hash];
+ } else {
+ list = &unix_socket_table[dentry->d_inode->i_ino & (UNIX_HASH_SIZE-1)];
+diff -urNp linux-2.6.28.8/scripts/pnmtologo.c linux-2.6.28.8/scripts/pnmtologo.c
+--- linux-2.6.28.8/scripts/pnmtologo.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/scripts/pnmtologo.c 2009-02-21 09:37:50.000000000 -0500
+@@ -237,14 +237,14 @@ static void write_header(void)
+ fprintf(out, " * Linux logo %s\n", logoname);
+ fputs(" */\n\n", out);
+ fputs("#include <linux/linux_logo.h>\n\n", out);
+- fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
++ fprintf(out, "static unsigned char %s_data[] = {\n",
+ logoname);
+ }
+
+ static void write_footer(void)
+ {
+ fputs("\n};\n\n", out);
+- fprintf(out, "struct linux_logo %s __initdata = {\n", logoname);
++ fprintf(out, "struct linux_logo %s = {\n", logoname);
+ fprintf(out, " .type\t= %s,\n", logo_types[logo_type]);
+ fprintf(out, " .width\t= %d,\n", logo_width);
+ fprintf(out, " .height\t= %d,\n", logo_height);
+@@ -374,7 +374,7 @@ static void write_logo_clut224(void)
+ fputs("\n};\n\n", out);
+
+ /* write logo clut */
+- fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
++ fprintf(out, "static unsigned char %s_clut[] = {\n",
+ logoname);
+ write_hex_cnt = 0;
+ for (i = 0; i < logo_clutsize; i++) {
+diff -urNp linux-2.6.28.8/security/commoncap.c linux-2.6.28.8/security/commoncap.c
+--- linux-2.6.28.8/security/commoncap.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/security/commoncap.c 2009-03-07 04:29:14.000000000 -0500
+@@ -27,9 +27,11 @@
+ #include <linux/prctl.h>
+ #include <linux/securebits.h>
+
++extern kernel_cap_t gr_cap_rtnetlink(struct sock *sk);
++
+ int cap_netlink_send(struct sock *sk, struct sk_buff *skb)
+ {
+- NETLINK_CB(skb).eff_cap = current->cap_effective;
++ NETLINK_CB(skb).eff_cap = gr_cap_rtnetlink(sk);
+ return 0;
+ }
+
+@@ -56,6 +58,14 @@ int cap_capable (struct task_struct *tsk
+ return -EPERM;
+ }
+
++int cap_capable_nolog (struct task_struct *tsk, int cap)
++{
++ /* tsk = current for all callers */
++ if (cap_raised(tsk->cap_effective, cap) && gr_is_capable_nolog(cap))
++ return 0;
++ return -EPERM;
++}
++
+ int cap_settime(struct timespec *ts, struct timezone *tz)
+ {
+ if (!capable(CAP_SYS_TIME))
+@@ -379,8 +389,11 @@ void cap_bprm_apply_creds (struct linux_
+ }
+ }
+
+- current->suid = current->euid = current->fsuid = bprm->e_uid;
+- current->sgid = current->egid = current->fsgid = bprm->e_gid;
++ if (!gr_check_user_change(-1, bprm->e_uid, bprm->e_uid))
++ current->suid = current->euid = current->fsuid = bprm->e_uid;
++
++ if (!gr_check_group_change(-1, bprm->e_gid, bprm->e_gid))
++ current->sgid = current->egid = current->fsgid = bprm->e_gid;
+
+ /* For init, we want to retain the capabilities set
+ * in the init_task struct. Thus we skip the usual
+@@ -393,6 +406,8 @@ void cap_bprm_apply_creds (struct linux_
+ cap_clear(current->cap_effective);
+ }
+
++ gr_handle_chroot_caps(current);
++
+ /* AUD: Audit candidate if current->cap_effective is set */
+
+ current->securebits &= ~issecure_mask(SECURE_KEEP_CAPS);
+@@ -705,7 +720,7 @@ int cap_vm_enough_memory(struct mm_struc
+ {
+ int cap_sys_admin = 0;
+
+- if (cap_capable(current, CAP_SYS_ADMIN) == 0)
++ if (cap_capable_nolog(current, CAP_SYS_ADMIN) == 0)
+ cap_sys_admin = 1;
+ return __vm_enough_memory(mm, pages, cap_sys_admin);
+ }
+diff -urNp linux-2.6.28.8/security/Kconfig linux-2.6.28.8/security/Kconfig
+--- linux-2.6.28.8/security/Kconfig 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/security/Kconfig 2009-02-21 09:37:50.000000000 -0500
+@@ -4,6 +4,447 @@
+
+ menu "Security options"
+
++source grsecurity/Kconfig
++
++menu "PaX"
++
++config PAX
++ bool "Enable various PaX features"
++ depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS32 || MIPS64 || PARISC || PPC32 || PPC64 || SPARC32 || SPARC64 || X86)
++ help
++ This allows you to enable various PaX features. PaX adds
++ intrusion prevention mechanisms to the kernel that reduce
++ the risks posed by exploitable memory corruption bugs.
++
++menu "PaX Control"
++ depends on PAX
++
++config PAX_SOFTMODE
++ bool 'Support soft mode'
++ help
++ Enabling this option will allow you to run PaX in soft mode, that
++ is, PaX features will not be enforced by default, only on executables
++ marked explicitly. You must also enable PT_PAX_FLAGS support as it
++ is the only way to mark executables for soft mode use.
++
++ Soft mode can be activated by using the "pax_softmode=1" kernel command
++ line option on boot. Furthermore you can control various PaX features
++ at runtime via the entries in /proc/sys/kernel/pax.
++
++config PAX_EI_PAX
++ bool 'Use legacy ELF header marking'
++ help
++ Enabling this option will allow you to control PaX features on
++ a per executable basis via the 'chpax' utility available at
++ http://pax.grsecurity.net/. The control flags will be read from
++ an otherwise reserved part of the ELF header. This marking has
++ numerous drawbacks (no support for soft-mode, toolchain does not
++ know about the non-standard use of the ELF header) therefore it
++ has been deprecated in favour of PT_PAX_FLAGS support.
++
++ If you have applications not marked by the PT_PAX_FLAGS ELF
++ program header then you MUST enable this option otherwise they
++ will not get any protection.
++
++ Note that if you enable PT_PAX_FLAGS marking support as well,
++ the PT_PAX_FLAG marks will override the legacy EI_PAX marks.
++
++config PAX_PT_PAX_FLAGS
++ bool 'Use ELF program header marking'
++ help
++ Enabling this option will allow you to control PaX features on
++ a per executable basis via the 'paxctl' utility available at
++ http://pax.grsecurity.net/. The control flags will be read from
++ a PaX specific ELF program header (PT_PAX_FLAGS). This marking
++ has the benefits of supporting both soft mode and being fully
++ integrated into the toolchain (the binutils patch is available
++ from http://pax.grsecurity.net).
++
++ If you have applications not marked by the PT_PAX_FLAGS ELF
++ program header then you MUST enable the EI_PAX marking support
++ otherwise they will not get any protection.
++
++ Note that if you enable the legacy EI_PAX marking support as well,
++ the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks.
++
++choice
++ prompt 'MAC system integration'
++ default PAX_HAVE_ACL_FLAGS
++ help
++ Mandatory Access Control systems have the option of controlling
++ PaX flags on a per executable basis, choose the method supported
++ by your particular system.
++
++ - "none": if your MAC system does not interact with PaX,
++ - "direct": if your MAC system defines pax_set_initial_flags() itself,
++ - "hook": if your MAC system uses the pax_set_initial_flags_func callback.
++
++ NOTE: this option is for developers/integrators only.
++
++ config PAX_NO_ACL_FLAGS
++ bool 'none'
++
++ config PAX_HAVE_ACL_FLAGS
++ bool 'direct'
++
++ config PAX_HOOK_ACL_FLAGS
++ bool 'hook'
++endchoice
++
++endmenu
++
++menu "Non-executable pages"
++ depends on PAX
++
++config PAX_NOEXEC
++ bool "Enforce non-executable pages"
++ depends on (PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS) && (ALPHA || IA64 || MIPS32 || MIPS64 || PARISC || PPC32 || PPC64 || SPARC32 || SPARC64 || X86)
++ help
++ By design some architectures do not allow for protecting memory
++ pages against execution or even if they do, Linux does not make
++ use of this feature. In practice this means that if a page is
++ readable (such as the stack or heap) it is also executable.
++
++ There is a well known exploit technique that makes use of this
++ fact and a common programming mistake where an attacker can
++ introduce code of his choice somewhere in the attacked program's
++ memory (typically the stack or the heap) and then execute it.
++
++ If the attacked program was running with different (typically
++ higher) privileges than that of the attacker, then he can elevate
++ his own privilege level (e.g. get a root shell, write to files for
++ which he does not have write access to, etc).
++
++ Enabling this option will let you choose from various features
++ that prevent the injection and execution of 'foreign' code in
++ a program.
++
++ This will also break programs that rely on the old behaviour and
++ expect that dynamically allocated memory via the malloc() family
++ of functions is executable (which it is not). Notable examples
++ are the XFree86 4.x server, the java runtime and wine.
++
++config PAX_PAGEEXEC
++ bool "Paging based non-executable pages"
++ depends on !COMPAT_VDSO && PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7)
++ help
++ This implementation is based on the paging feature of the CPU.
++ On i386 without hardware non-executable bit support there is a
++ variable but usually low performance impact, however on Intel's
++ P4 core based CPUs it is very high so you should not enable this
++ for kernels meant to be used on such CPUs.
++
++ On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386
++ with hardware non-executable bit support there is no performance
++ impact, on ppc the impact is negligible.
++
++ Note that several architectures require various emulations due to
++ badly designed userland ABIs, this will cause a performance impact
++ but will disappear as soon as userland is fixed (e.g., ppc users
++ can make use of the secure-plt feature found in binutils).
++
++config PAX_SEGMEXEC
++ bool "Segmentation based non-executable pages"
++ depends on !COMPAT_VDSO && PAX_NOEXEC && X86_32
++ help
++ This implementation is based on the segmentation feature of the
++ CPU and has a very small performance impact, however applications
++ will be limited to a 1.5 GB address space instead of the normal
++ 3 GB.
++
++config PAX_EMUTRAMP
++ bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || PPC32 || X86)
++ default y if PARISC || PPC32
++ help
++ There are some programs and libraries that for one reason or
++ another attempt to execute special small code snippets from
++ non-executable memory pages. Most notable examples are the
++ signal handler return code generated by the kernel itself and
++ the GCC trampolines.
++
++ If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then
++ such programs will no longer work under your kernel.
++
++ As a remedy you can say Y here and use the 'chpax' or 'paxctl'
++ utilities to enable trampoline emulation for the affected programs
++ yet still have the protection provided by the non-executable pages.
++
++ On parisc and ppc you MUST enable this option and EMUSIGRT as
++ well, otherwise your system will not even boot.
++
++ Alternatively you can say N here and use the 'chpax' or 'paxctl'
++ utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC
++ for the affected files.
++
++ NOTE: enabling this feature *may* open up a loophole in the
++ protection provided by non-executable pages that an attacker
++ could abuse. Therefore the best solution is to not have any
++ files on your system that would require this option. This can
++ be achieved by not using libc5 (which relies on the kernel
++ signal handler return code) and not using or rewriting programs
++ that make use of the nested function implementation of GCC.
++ Skilled users can just fix GCC itself so that it implements
++ nested function calls in a way that does not interfere with PaX.
++
++config PAX_EMUSIGRT
++ bool "Automatically emulate sigreturn trampolines"
++ depends on PAX_EMUTRAMP && (PARISC || PPC32)
++ default y
++ help
++ Enabling this option will have the kernel automatically detect
++ and emulate signal return trampolines executing on the stack
++ that would otherwise lead to task termination.
++
++ This solution is intended as a temporary one for users with
++ legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17,
++ Modula-3 runtime, etc) or executables linked to such, basically
++ everything that does not specify its own SA_RESTORER function in
++ normal executable memory like glibc 2.1+ does.
++
++ On parisc and ppc you MUST enable this option, otherwise your
++ system will not even boot.
++
++ NOTE: this feature cannot be disabled on a per executable basis
++ and since it *does* open up a loophole in the protection provided
++ by non-executable pages, the best solution is to not have any
++ files on your system that would require this option.
++
++config PAX_MPROTECT
++ bool "Restrict mprotect()"
++ depends on (PAX_PAGEEXEC || PAX_SEGMEXEC) && !PPC64
++ help
++ Enabling this option will prevent programs from
++ - changing the executable status of memory pages that were
++ not originally created as executable,
++ - making read-only executable pages writable again,
++ - creating executable pages from anonymous memory.
++
++ You should say Y here to complete the protection provided by
++ the enforcement of non-executable pages.
++
++ NOTE: you can use the 'chpax' or 'paxctl' utilities to control
++ this feature on a per file basis.
++
++config PAX_NOELFRELOCS
++ bool "Disallow ELF text relocations"
++ depends on PAX_MPROTECT && !PAX_ETEXECRELOCS && (IA64 || X86)
++ help
++ Non-executable pages and mprotect() restrictions are effective
++ in preventing the introduction of new executable code into an
++ attacked task's address space. There remain only two venues
++ for this kind of attack: if the attacker can execute already
++ existing code in the attacked task then he can either have it
++ create and mmap() a file containing his code or have it mmap()
++ an already existing ELF library that does not have position
++ independent code in it and use mprotect() on it to make it
++ writable and copy his code there. While protecting against
++ the former approach is beyond PaX, the latter can be prevented
++ by having only PIC ELF libraries on one's system (which do not
++ need to relocate their code). If you are sure this is your case,
++ then enable this option otherwise be careful as you may not even
++ be able to boot or log on your system (for example, some PAM
++ modules are erroneously compiled as non-PIC by default).
++
++ NOTE: if you are using dynamic ELF executables (as suggested
++ when using ASLR) then you must have made sure that you linked
++ your files using the PIC version of crt1 (the et_dyn.tar.gz package
++ referenced there has already been updated to support this).
++
++config PAX_ETEXECRELOCS
++ bool "Allow ELF ET_EXEC text relocations"
++ depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC)
++ default y
++ help
++ On some architectures there are incorrectly created applications
++ that require text relocations and would not work without enabling
++ this option. If you are an alpha, ia64 or parisc user, you should
++ enable this option and disable it once you have made sure that
++ none of your applications need it.
++
++config PAX_EMUPLT
++ bool "Automatically emulate ELF PLT"
++ depends on PAX_MPROTECT && (ALPHA || PARISC || PPC32 || SPARC32 || SPARC64)
++ default y
++ help
++ Enabling this option will have the kernel automatically detect
++ and emulate the Procedure Linkage Table entries in ELF files.
++ On some architectures such entries are in writable memory, and
++ become non-executable leading to task termination. Therefore
++ it is mandatory that you enable this option on alpha, parisc,
++ ppc (if secure-plt is not used throughout in userland), sparc
++ and sparc64, otherwise your system would not even boot.
++
++ NOTE: this feature *does* open up a loophole in the protection
++ provided by the non-executable pages, therefore the proper
++ solution is to modify the toolchain to produce a PLT that does
++ not need to be writable.
++
++config PAX_DLRESOLVE
++ bool
++ depends on PAX_EMUPLT && (SPARC32 || SPARC64)
++ default y
++
++config PAX_SYSCALL
++ bool
++ depends on PAX_PAGEEXEC && PPC32
++ default y
++
++config PAX_KERNEXEC
++ bool "Enforce non-executable kernel pages"
++ depends on PAX_NOEXEC && X86 && !EFI && !COMPAT_VDSO && (!X86_32 || X86_WP_WORKS_OK) && !PARAVIRT
++ help
++ This is the kernel land equivalent of PAGEEXEC and MPROTECT,
++ that is, enabling this option will make it harder to inject
++ and execute 'foreign' code in kernel memory itself.
++
++endmenu
++
++menu "Address Space Layout Randomization"
++ depends on PAX
++
++config PAX_ASLR
++ bool "Address Space Layout Randomization"
++ depends on PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS
++ help
++ Many if not most exploit techniques rely on the knowledge of
++ certain addresses in the attacked program. The following options
++ will allow the kernel to apply a certain amount of randomization
++ to specific parts of the program thereby forcing an attacker to
++ guess them in most cases. Any failed guess will most likely crash
++ the attacked program which allows the kernel to detect such attempts
++ and react on them. PaX itself provides no reaction mechanisms,
++ instead it is strongly encouraged that you make use of Nergal's
++ segvguard (ftp://ftp.pl.openwall.com/misc/segvguard/) or grsecurity's
++ (http://www.grsecurity.net/) built-in crash detection features or
++ develop one yourself.
++
++ By saying Y here you can choose to randomize the following areas:
++ - top of the task's kernel stack
++ - top of the task's userland stack
++ - base address for mmap() requests that do not specify one
++ (this includes all libraries)
++ - base address of the main executable
++
++ It is strongly recommended to say Y here as address space layout
++ randomization has negligible impact on performance yet it provides
++ a very effective protection.
++
++ NOTE: you can use the 'chpax' or 'paxctl' utilities to control
++ this feature on a per file basis.
++
++config PAX_RANDKSTACK
++ bool "Randomize kernel stack base"
++ depends on PAX_ASLR && X86_TSC && X86_32
++ help
++ By saying Y here the kernel will randomize every task's kernel
++ stack on every system call. This will not only force an attacker
++ to guess it but also prevent him from making use of possible
++ leaked information about it.
++
++ Since the kernel stack is a rather scarce resource, randomization
++ may cause unexpected stack overflows, therefore you should very
++ carefully test your system. Note that once enabled in the kernel
++ configuration, this feature cannot be disabled on a per file basis.
++
++config PAX_RANDUSTACK
++ bool "Randomize user stack base"
++ depends on PAX_ASLR
++ help
++ By saying Y here the kernel will randomize every task's userland
++ stack. The randomization is done in two steps where the second
++ one may apply a big amount of shift to the top of the stack and
++ cause problems for programs that want to use lots of memory (more
++ than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is).
++ For this reason the second step can be controlled by 'chpax' or
++ 'paxctl' on a per file basis.
++
++config PAX_RANDMMAP
++ bool "Randomize mmap() base"
++ depends on PAX_ASLR
++ help
++ By saying Y here the kernel will use a randomized base address for
++ mmap() requests that do not specify one themselves. As a result
++ all dynamically loaded libraries will appear at random addresses
++ and therefore be harder to exploit by a technique where an attacker
++ attempts to execute library code for his purposes (e.g. spawn a
++ shell from an exploited program that is running at an elevated
++ privilege level).
++
++ Furthermore, if a program is relinked as a dynamic ELF file, its
++ base address will be randomized as well, completing the full
++ randomization of the address space layout. Attacking such programs
++ becomes a guess game. You can find an example of doing this at
++ http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at
++ http://www.grsecurity.net/grsec-gcc-specs.tar.gz .
++
++ NOTE: you can use the 'chpax' or 'paxctl' utilities to control this
++ feature on a per file basis.
++
++endmenu
++
++menu "Miscellaneous hardening features"
++
++config PAX_MEMORY_SANITIZE
++ bool "Sanitize all freed memory"
++ help
++ By saying Y here the kernel will erase memory pages as soon as they
++ are freed. This in turn reduces the lifetime of data stored in the
++ pages, making it less likely that sensitive information such as
++ passwords, cryptographic secrets, etc stay in memory for too long.
++
++ This is especially useful for programs whose runtime is short, long
++ lived processes and the kernel itself benefit from this as long as
++ they operate on whole memory pages and ensure timely freeing of pages
++ that may hold sensitive information.
++
++ The tradeoff is performance impact, on a single CPU system kernel
++ compilation sees a 3% slowdown, other systems and workloads may vary
++ and you are advised to test this feature on your expected workload
++ before deploying it.
++
++ Note that this feature does not protect data stored in live pages,
++ e.g., process memory swapped to disk may stay there for a long time.
++
++config PAX_MEMORY_UDEREF
++ bool "Prevent invalid userland pointer dereference"
++ depends on X86_32 && !COMPAT_VDSO && !UML_X86
++ help
++ By saying Y here the kernel will be prevented from dereferencing
++ userland pointers in contexts where the kernel expects only kernel
++ pointers. This is both a useful runtime debugging feature and a
++ security measure that prevents exploiting a class of kernel bugs.
++
++ The tradeoff is that some virtualization solutions may experience
++ a huge slowdown and therefore you should not enable this feature
++ for kernels meant to run in such environments. Whether a given VM
++ solution is affected or not is best determined by simply trying it
++ out, the performance impact will be obvious right on boot as this
++ mechanism engages from very early on. A good rule of thumb is that
++ VMs running on CPUs without hardware virtualization support (i.e.,
++ the majority of IA-32 CPUs) will likely experience the slowdown.
++
++config PAX_REFCOUNT
++ bool "Prevent various kernel object reference counter overflows"
++ depends on X86
++ help
++ By saying Y here the kernel will detect and prevent overflowing
++ various (but not all) kinds of object reference counters. Such
++ overflows can normally occur due to bugs only and are often, if
++ not always, exploitable.
++
++ The tradeoff is that data structures protected by an overflowed
++ refcount will never be freed and therefore will leak memory. Note
++ that this leak also happens even without this protection but in
++ that case the overflow can eventually trigger the freeing of the
++ data structure while it is still being used elsewhere, resulting
++ in the exploitable situation that this feature prevents.
++
++ Since this has a negligible performance impact, you should enable
++ this feature.
++endmenu
++
++endmenu
++
+ config KEYS
+ bool "Enable access key retention support"
+ help
+diff -urNp linux-2.6.28.8/sound/core/oss/pcm_oss.c linux-2.6.28.8/sound/core/oss/pcm_oss.c
+--- linux-2.6.28.8/sound/core/oss/pcm_oss.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/sound/core/oss/pcm_oss.c 2009-02-21 09:37:50.000000000 -0500
+@@ -2929,8 +2929,8 @@ static void snd_pcm_oss_proc_done(struct
+ }
+ }
+ #else /* !CONFIG_SND_VERBOSE_PROCFS */
+-#define snd_pcm_oss_proc_init(pcm)
+-#define snd_pcm_oss_proc_done(pcm)
++#define snd_pcm_oss_proc_init(pcm) do {} while (0)
++#define snd_pcm_oss_proc_done(pcm) do {} while (0)
+ #endif /* CONFIG_SND_VERBOSE_PROCFS */
+
+ /*
+diff -urNp linux-2.6.28.8/sound/core/seq/seq_lock.h linux-2.6.28.8/sound/core/seq/seq_lock.h
+--- linux-2.6.28.8/sound/core/seq/seq_lock.h 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/sound/core/seq/seq_lock.h 2009-02-21 09:37:50.000000000 -0500
+@@ -23,10 +23,10 @@ void snd_use_lock_sync_helper(snd_use_lo
+ #else /* SMP || CONFIG_SND_DEBUG */
+
+ typedef spinlock_t snd_use_lock_t; /* dummy */
+-#define snd_use_lock_init(lockp) /**/
+-#define snd_use_lock_use(lockp) /**/
+-#define snd_use_lock_free(lockp) /**/
+-#define snd_use_lock_sync(lockp) /**/
++#define snd_use_lock_init(lockp) do {} while (0)
++#define snd_use_lock_use(lockp) do {} while (0)
++#define snd_use_lock_free(lockp) do {} while (0)
++#define snd_use_lock_sync(lockp) do {} while (0)
+
+ #endif /* SMP || CONFIG_SND_DEBUG */
+
+diff -urNp linux-2.6.28.8/sound/pci/ac97/ac97_patch.c linux-2.6.28.8/sound/pci/ac97/ac97_patch.c
+--- linux-2.6.28.8/sound/pci/ac97/ac97_patch.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/sound/pci/ac97/ac97_patch.c 2009-02-21 09:37:50.000000000 -0500
+@@ -1498,7 +1498,7 @@ static const struct snd_ac97_res_table a
+ { AC97_VIDEO, 0x9f1f },
+ { AC97_AUX, 0x9f1f },
+ { AC97_PCM, 0x9f1f },
+- { } /* terminator */
++ { 0, 0 } /* terminator */
+ };
+
+ static int patch_ad1819(struct snd_ac97 * ac97)
+@@ -3870,7 +3870,7 @@ static struct snd_ac97_res_table lm4550_
+ { AC97_AUX, 0x1f1f },
+ { AC97_PCM, 0x1f1f },
+ { AC97_REC_GAIN, 0x0f0f },
+- { } /* terminator */
++ { 0, 0 } /* terminator */
+ };
+
+ static int patch_lm4550(struct snd_ac97 *ac97)
+diff -urNp linux-2.6.28.8/sound/pci/ens1370.c linux-2.6.28.8/sound/pci/ens1370.c
+--- linux-2.6.28.8/sound/pci/ens1370.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/sound/pci/ens1370.c 2009-02-21 09:37:50.000000000 -0500
+@@ -452,7 +452,7 @@ static struct pci_device_id snd_audiopci
+ { 0x1274, 0x5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ES1373 - CT5880 */
+ { 0x1102, 0x8938, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* Ectiva EV1938 */
+ #endif
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, snd_audiopci_ids);
+diff -urNp linux-2.6.28.8/sound/pci/intel8x0.c linux-2.6.28.8/sound/pci/intel8x0.c
+--- linux-2.6.28.8/sound/pci/intel8x0.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/sound/pci/intel8x0.c 2009-02-21 09:37:50.000000000 -0500
+@@ -443,7 +443,7 @@ static struct pci_device_id snd_intel8x0
+ { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
+ { 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
+ { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
+@@ -2088,7 +2088,7 @@ static struct ac97_quirk ac97_quirks[] _
+ .type = AC97_TUNE_HP_ONLY
+ },
+ #endif
+- { } /* terminator */
++ { 0, 0, 0, 0, NULL, 0 } /* terminator */
+ };
+
+ static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
+diff -urNp linux-2.6.28.8/sound/pci/intel8x0m.c linux-2.6.28.8/sound/pci/intel8x0m.c
+--- linux-2.6.28.8/sound/pci/intel8x0m.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/sound/pci/intel8x0m.c 2009-02-21 09:37:50.000000000 -0500
+@@ -239,7 +239,7 @@ static struct pci_device_id snd_intel8x0
+ { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
+ { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */
+ #endif
+- { 0, }
++ { 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+ MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
+@@ -1258,7 +1258,7 @@ static struct shortname_table {
+ { 0x5455, "ALi M5455" },
+ { 0x746d, "AMD AMD8111" },
+ #endif
+- { 0 },
++ { 0, NULL },
+ };
+
+ static int __devinit snd_intel8x0m_probe(struct pci_dev *pci,
+diff -urNp linux-2.6.28.8/virt/kvm/kvm_main.c linux-2.6.28.8/virt/kvm/kvm_main.c
+--- linux-2.6.28.8/virt/kvm/kvm_main.c 2009-02-06 16:47:45.000000000 -0500
++++ linux-2.6.28.8/virt/kvm/kvm_main.c 2009-02-21 09:37:50.000000000 -0500
+@@ -1765,6 +1765,9 @@ static struct miscdevice kvm_dev = {
+ KVM_MINOR,
+ "kvm",
+ &kvm_chardev_ops,
++ {NULL, NULL},
++ NULL,
++ NULL
+ };
+
+ static void hardware_enable(void *junk)
+@@ -1996,7 +1999,7 @@ static void kvm_sched_out(struct preempt
+ kvm_arch_vcpu_put(vcpu);
+ }
+
+-int kvm_init(void *opaque, unsigned int vcpu_size,
++int kvm_init(const void *opaque, unsigned int vcpu_size,
+ struct module *module)
+ {
+ int r;
Deleted: hardened/2.6/trunk/2.6.28/4450_pax-2.6.28.7-test19-to-test20.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/4450_pax-2.6.28.7-test19-to-test20.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/4450_pax-2.6.28.7-test19-to-test20.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,62 +0,0 @@
-From: Gordon Malm <gengor@gentoo.org>
-
-PaX: Add changes from pax-2.6.28.7-test20 which are not
-yet integrated into main grsecurity-2.6.28.x patch.
-
---- a/arch/x86/boot/compressed/head_32.S
-+++ b/arch/x86/boot/compressed/head_32.S
-@@ -80,8 +80,8 @@
- /* Add 8 bytes for every 32K input block */
- shrl $12, %eax
- addl %eax, %ebx
-- /* Add 32K + 18 bytes of extra slack */
-- addl $(32768 + 18), %ebx
-+ /* Add 64K of extra slack */
-+ addl $65536, %ebx
- /* Align on a 4K boundary */
- addl $4095, %ebx
- andl $~4095, %ebx
---- a/arch/x86/mm/pat.c
-+++ b/arch/x86/mm/pat.c
-@@ -491,6 +491,13 @@
- return vma_prot;
- }
-
-+#ifndef CONFIG_STRICT_DEVMEM
-+/* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM*/
-+static inline int range_is_allowed(unsigned long pfn, unsigned long size)
-+{
-+ return 1;
-+}
-+#else
- /* This check is needed to avoid cache aliasing when PAT is enabled */
- static inline int range_is_allowed(unsigned long pfn, unsigned long size)
- {
-@@ -513,6 +520,7 @@
- }
- return 1;
- }
-+#endif /* CONFIG_STRICT_DEVMEM */
-
- int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
- unsigned long size, pgprot_t *vma_prot)
---- a/drivers/lguest/core.c
-+++ b/drivers/lguest/core.c
-@@ -80,9 +80,17 @@ static __init int map_switcher(void)
- * (SWITCHER_ADDR). We might not get it in theory, but in practice
- * it's worked so far. The end address needs +1 because __get_vm_area
- * allocates an extra guard page, so we need space for that. */
-+
-+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
-+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
-+ VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR
-+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
-+#else
- switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
- VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR
- + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
-+#endif
-+
- if (!switcher_vma) {
- err = -ENOMEM;
- printk("lguest: could not map switcher pages high\n");
Deleted: hardened/2.6/trunk/2.6.28/4455_pax-2.6.28.8-test20-to-test23.patch
===================================================================
--- hardened/2.6/trunk/2.6.28/4455_pax-2.6.28.8-test20-to-test23.patch 2009-03-20 00:38:17 UTC (rev 1526)
+++ hardened/2.6/trunk/2.6.28/4455_pax-2.6.28.8-test20-to-test23.patch 2009-03-20 18:27:29 UTC (rev 1527)
@@ -1,88 +0,0 @@
-From: Gordon Malm <gengor@gentoo.org>
-
-PaX: Add changes from pax-2.6.28.8-test23 which are not
-yet integrated into main grsecurity-2.6.28.x patch.
-
---- a/arch/x86/kernel/vmlinux_32.lds.S
-+++ b/arch/x86/kernel/vmlinux_32.lds.S
-@@ -179,15 +179,16 @@
-
- . += __KERNEL_TEXT_OFFSET;
-
-- . = ALIGN(4096); /* Exception table */
-+ . = ALIGN(4096);
-+ NOTES :rodata :note
-+
-+ . = ALIGN(16); /* Exception table */
- __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
- __start___ex_table = .;
- *(__ex_table)
- __stop___ex_table = .;
- } :rodata
-
-- NOTES :rodata :note
--
- RO_DATA(PAGE_SIZE)
-
- . = ALIGN(PAGE_SIZE);
-@@ -197,23 +198,22 @@
- *(.empty_zero_page)
- *(.swapper_pg_pmd)
- *(.swapper_pg_dir)
-- }
-
--#ifdef CONFIG_PAX_KERNEXEC
-+#if defined(CONFIG_PAX_KERNEXEC) && !defined(CONFIG_MODULES)
-+ . = ALIGN(PMD_SIZE);
-+#endif
-+
-+ }
-
--#ifdef CONFIG_MODULES
-+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES)
- . = ALIGN(PAGE_SIZE);
- .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
- MODULES_VADDR = .;
- BYTE(0)
- . += (6 * 1024 * 1024);
-- . = ALIGN( PMD_SIZE) - 1;
-- MODULES_END = .;
-+ . = ALIGN(PMD_SIZE);
-+ MODULES_END = . - 1;
- }
--#else
-- . = ALIGN(PMD_SIZE) - 1;
--#endif
--
- #endif
-
- /* writeable */
---- a/include/linux/highmem.h
-+++ b/include/linux/highmem.h
-@@ -126,9 +126,14 @@
-
- static inline void sanitize_highpage(struct page *page)
- {
-- void *kaddr = kmap_atomic(page, KM_CLEARPAGE);
-+ void *kaddr;
-+ unsigned long flags;
-+
-+ local_irq_save(flags);
-+ kaddr = kmap_atomic(page, KM_CLEARPAGE);
- clear_page(kaddr);
- kunmap_atomic(kaddr, KM_CLEARPAGE);
-+ local_irq_restore(flags);
- }
-
- static inline void zero_user_segments(struct page *page,
---- a/arch/x86/mm/pageattr-test.c
-+++ b/arch/x86/mm/pageattr-test.c
-@@ -36,7 +36,7 @@ enum {
-
- static int pte_testbit(pte_t pte)
- {
-- return pte_flags(pte) & _PAGE_UNUSED1;
-+ return pte_flags(pte) & _PAGE_CPA_TEST;
- }
-
- struct split_state {
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2009-03-20 18:27 [gentoo-commits] linux-patches r1527 - hardened/2.6/trunk/2.6.28 Gordon Malm (gengor)
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