[gentoo-commits] repo/gentoo:master commit in: dev-lang/rust/, dev-lang/rust/files/

["Georgy Yakovlev" <gyakovlev@gentoo.org>]

commit:     c9982cad131a4c026810796850ccb60243ff9406
Author:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
AuthorDate: Sun Apr 18 10:28:48 2021 +0000
Commit:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
CommitDate: Sun Apr 18 10:29:23 2021 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c9982cad

dev-lang/rust: security revbump with 2 more patches

switched to fedora's rebased patches

Bug: https://bugs.gentoo.org/782367
Package-Manager: Portage-3.0.18, Repoman-3.0.3
Signed-off-by: Georgy Yakovlev <gyakovlev <AT> gentoo.org>

 ...3.patch => rustc-1.51.0-backport-pr81728.patch} | 26 ++++---
 ...6.patch => rustc-1.51.0-backport-pr81741.patch} | 11 ++-
 ...9.patch => rustc-1.51.0-backport-pr82289.patch} | 32 +++++---
 ...8.patch => rustc-1.51.0-backport-pr82292.patch} | 36 +++++----
 ...2.patch => rustc-1.51.0-backport-pr83629.patch} | 89 +++++-----------------
 ...rust-1.51.0-r1.ebuild => rust-1.51.0-r2.ebuild} | 10 +--
 6 files changed, 91 insertions(+), 113 deletions(-)

diff --git a/dev-lang/rust/files/1.51.0-CVE-2020-36323.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr81728.patch
similarity index 89%
rename from dev-lang/rust/files/1.51.0-CVE-2020-36323.patch
rename to dev-lang/rust/files/rustc-1.51.0-backport-pr81728.patch
index b4f2215cc23..20373f42d30 100644
--- a/dev-lang/rust/files/1.51.0-CVE-2020-36323.patch
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr81728.patch
@@ -1,4 +1,4 @@
-From 6d43225bfb08ec91f7476b76c7fec632c4a096ef Mon Sep 17 00:00:00 2001
+From 70f17ca715d3d7e2fd79cc909b95fd3a6357c13e Mon Sep 17 00:00:00 2001
 From: Yechan Bae <yechan@gatech.edu>
 Date: Wed, 3 Feb 2021 16:36:33 -0500
 Subject: [PATCH 1/2] Fixes #80335
@@ -9,10 +9,10 @@ Subject: [PATCH 1/2] Fixes #80335
  2 files changed, 54 insertions(+), 18 deletions(-)
 
 diff --git a/library/alloc/src/str.rs b/library/alloc/src/str.rs
-index 70e0c7dba5eab..a7584c6b65100 100644
+index 70e0c7dba5ea..a7584c6b6510 100644
 --- a/library/alloc/src/str.rs
 +++ b/library/alloc/src/str.rs
-@@ -90,8 +90,8 @@ impl<S: Borrow<str>> Join<&str> for [S] {
+@@ -90,8 +90,8 @@ fn join(slice: &Self, sep: &str) -> String {
      }
  }
  
@@ -49,7 +49,7 @@ index 70e0c7dba5eab..a7584c6b65100 100644
  }
  
  macro_rules! copy_slice_and_advance {
-@@ -153,7 +156,7 @@ where
+@@ -153,7 +156,7 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
      // if the `len` calculation overflows, we'll panic
      // we would have run out of memory anyway and the rest of the function requires
      // the entire Vec pre-allocated for safety
@@ -58,7 +58,7 @@ index 70e0c7dba5eab..a7584c6b65100 100644
          .checked_mul(iter.len())
          .and_then(|n| {
              slice.iter().map(|s| s.borrow().as_ref().len()).try_fold(n, usize::checked_add)
-@@ -161,22 +164,25 @@ where
+@@ -161,22 +164,25 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
          .expect("attempt to join into collection with len > usize::MAX");
  
      // crucial for safety
@@ -97,7 +97,7 @@ index 70e0c7dba5eab..a7584c6b65100 100644
      result
  }
 diff --git a/library/alloc/tests/str.rs b/library/alloc/tests/str.rs
-index 604835e6cc4a6..6df8d8c2f354f 100644
+index 604835e6cc4a..6df8d8c2f354 100644
 --- a/library/alloc/tests/str.rs
 +++ b/library/alloc/tests/str.rs
 @@ -160,6 +160,36 @@ fn test_join_for_different_lengths_with_long_separator() {
@@ -137,8 +137,11 @@ index 604835e6cc4a6..6df8d8c2f354f 100644
  #[test]
  #[cfg_attr(miri, ignore)] // Miri is too slow
  fn test_unsafe_slice() {
+-- 
+2.31.1
 
-From 26a62701e42d10c03ce5f2f911e7d5edeefa2f0f Mon Sep 17 00:00:00 2001
+
+From 10020817d2e6756be1ff2ac3c182af97cf7fe904 Mon Sep 17 00:00:00 2001
 From: Yechan Bae <yechan@gatech.edu>
 Date: Sat, 20 Mar 2021 13:42:54 -0400
 Subject: [PATCH 2/2] Update the comment
@@ -148,10 +151,10 @@ Subject: [PATCH 2/2] Update the comment
  1 file changed, 4 insertions(+), 4 deletions(-)
 
 diff --git a/library/alloc/src/str.rs b/library/alloc/src/str.rs
-index a7584c6b65100..4d1e876457b8e 100644
+index a7584c6b6510..4d1e876457b8 100644
 --- a/library/alloc/src/str.rs
 +++ b/library/alloc/src/str.rs
-@@ -163,7 +163,7 @@ where
+@@ -163,7 +163,7 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
          })
          .expect("attempt to join into collection with len > usize::MAX");
  
@@ -160,7 +163,7 @@ index a7584c6b65100..4d1e876457b8e 100644
      let mut result = Vec::with_capacity(reserved_len);
      debug_assert!(result.capacity() >= reserved_len);
  
-@@ -178,9 +178,9 @@ where
+@@ -178,9 +178,9 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
          // massive improvements possible (~ x2)
          let remain = specialize_for_lengths!(sep, target, iter; 0, 1, 2, 3, 4);
  
@@ -173,3 +176,6 @@ index a7584c6b65100..4d1e876457b8e 100644
          let result_len = reserved_len - remain.len();
          result.set_len(result_len);
      }
+-- 
+2.31.1
+

diff --git a/dev-lang/rust/files/1.51.0-CVE-2021-28876.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr81741.patch
similarity index 85%
rename from dev-lang/rust/files/1.51.0-CVE-2021-28876.patch
rename to dev-lang/rust/files/rustc-1.51.0-backport-pr81741.patch
index 3a0af024143..8ef22eea56f 100644
--- a/dev-lang/rust/files/1.51.0-CVE-2021-28876.patch
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr81741.patch
@@ -1,4 +1,4 @@
-From 86a4b27475aab52b998c15f5758540697cc9cff0 Mon Sep 17 00:00:00 2001
+From 40d3f2d7ef5835317fe9df9ecc01f4c363def4fd Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
 Date: Thu, 4 Feb 2021 10:23:01 +0200
 Subject: [PATCH] Increment `self.index` before calling
@@ -12,15 +12,17 @@ allowed according to the API contract of `TrustedRandomAccess` for
 `!Clone`.
 
 Fixes https://github.com/rust-lang/rust/issues/81740
+
+(cherry picked from commit 86a4b27475aab52b998c15f5758540697cc9cff0)
 ---
  library/core/src/iter/adapters/zip.rs | 7 ++++---
  1 file changed, 4 insertions(+), 3 deletions(-)
 
 diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
-index 98b8dca961407..9f98353452006 100644
+index 98b8dca96140..9f9835345200 100644
 --- a/library/core/src/iter/adapters/zip.rs
 +++ b/library/core/src/iter/adapters/zip.rs
-@@ -198,12 +198,13 @@ where
+@@ -198,12 +198,13 @@ fn next(&mut self) -> Option<(A::Item, B::Item)> {
                  Some((self.a.__iterator_get_unchecked(i), self.b.__iterator_get_unchecked(i)))
              }
          } else if A::may_have_side_effect() && self.index < self.a.size() {
@@ -37,3 +39,6 @@ index 98b8dca961407..9f98353452006 100644
              None
          } else {
              None
+-- 
+2.31.1
+

diff --git a/dev-lang/rust/files/1.51.0-CVE-2021-28879.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr82289.patch
similarity index 75%
rename from dev-lang/rust/files/1.51.0-CVE-2021-28879.patch
rename to dev-lang/rust/files/rustc-1.51.0-backport-pr82289.patch
index 3407a2ddf2f..5cf54331977 100644
--- a/dev-lang/rust/files/1.51.0-CVE-2021-28879.patch
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr82289.patch
@@ -1,37 +1,42 @@
-From 66a260617a88ed1ad55a46f03c5a90d5ad3004d3 Mon Sep 17 00:00:00 2001
+From 5222e2ba2d97cd716a379b4ae6bc62c5f7c2dd36 Mon Sep 17 00:00:00 2001
 From: Giacomo Stevanato <giaco.stevanato@gmail.com>
 Date: Fri, 19 Feb 2021 12:15:37 +0100
 Subject: [PATCH 1/3] Increment self.len in specialized ZipImpl to avoid
  underflow in size_hint
 
+(cherry picked from commit 66a260617a88ed1ad55a46f03c5a90d5ad3004d3)
 ---
  library/core/src/iter/adapters/zip.rs | 1 +
  1 file changed, 1 insertion(+)
 
 diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
-index 9d0f4e3618fc5..ce48016afcd50 100644
+index 9f9835345200..f08bfac837fe 100644
 --- a/library/core/src/iter/adapters/zip.rs
 +++ b/library/core/src/iter/adapters/zip.rs
-@@ -200,6 +200,7 @@ where
-         } else if A::MAY_HAVE_SIDE_EFFECT && self.index < self.a.size() {
+@@ -200,6 +200,7 @@ fn next(&mut self) -> Option<(A::Item, B::Item)> {
+         } else if A::may_have_side_effect() && self.index < self.a.size() {
              let i = self.index;
              self.index += 1;
 +            self.len += 1;
              // match the base implementation's potential side effects
              // SAFETY: we just checked that `i` < `self.a.len()`
              unsafe {
+-- 
+2.31.1
 
-From 8b9ac4d4155c74db5b317046033ab9c05a09e351 Mon Sep 17 00:00:00 2001
+
+From d39669fc8282830a374d19d204f7b4ee8eb1e381 Mon Sep 17 00:00:00 2001
 From: Giacomo Stevanato <giaco.stevanato@gmail.com>
 Date: Fri, 19 Feb 2021 12:16:12 +0100
 Subject: [PATCH 2/3] Add test for underflow in specialized Zip's size_hint
 
+(cherry picked from commit 8b9ac4d4155c74db5b317046033ab9c05a09e351)
 ---
  library/core/tests/iter/adapters/zip.rs | 20 ++++++++++++++++++++
  1 file changed, 20 insertions(+)
 
 diff --git a/library/core/tests/iter/adapters/zip.rs b/library/core/tests/iter/adapters/zip.rs
-index 1fce0951e365e..a597710392952 100644
+index 1fce0951e365..a59771039295 100644
 --- a/library/core/tests/iter/adapters/zip.rs
 +++ b/library/core/tests/iter/adapters/zip.rs
 @@ -245,3 +245,23 @@ fn test_double_ended_zip() {
@@ -58,27 +63,34 @@ index 1fce0951e365e..a597710392952 100644
 +        panic!();
 +    }
 +}
+-- 
+2.31.1
+
 
-From aeb4ea739efb70e0002a4a9c4c7b8027dd0620b3 Mon Sep 17 00:00:00 2001
+From 4b382167dd5ed5a6eac0cf314bfb86e3704b6e76 Mon Sep 17 00:00:00 2001
 From: Giacomo Stevanato <giaco.stevanato@gmail.com>
 Date: Fri, 19 Feb 2021 12:17:48 +0100
 Subject: [PATCH 3/3] Remove useless comparison since now self.index <=
  self.len is an invariant
 
+(cherry picked from commit aeb4ea739efb70e0002a4a9c4c7b8027dd0620b3)
 ---
  library/core/src/iter/adapters/zip.rs | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
-index ce48016afcd50..817fc2a51e981 100644
+index f08bfac837fe..dcbcb1ce7200 100644
 --- a/library/core/src/iter/adapters/zip.rs
 +++ b/library/core/src/iter/adapters/zip.rs
-@@ -259,7 +259,7 @@ where
+@@ -261,7 +261,7 @@ fn next_back(&mut self) -> Option<(A::Item, B::Item)>
              if sz_a != sz_b {
                  let sz_a = self.a.size();
-                 if A::MAY_HAVE_SIDE_EFFECT && sz_a > self.len {
+                 if a_side_effect && sz_a > self.len {
 -                    for _ in 0..sz_a - cmp::max(self.len, self.index) {
 +                    for _ in 0..sz_a - self.len {
                          self.a.next_back();
                      }
                  }
+-- 
+2.31.1
+

diff --git a/dev-lang/rust/files/1.51.0-CVE-2021-28878.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr82292.patch
similarity index 74%
rename from dev-lang/rust/files/1.51.0-CVE-2021-28878.patch
rename to dev-lang/rust/files/rustc-1.51.0-backport-pr82292.patch
index f319ab5e8c4..4baf72a2619 100644
--- a/dev-lang/rust/files/1.51.0-CVE-2021-28878.patch
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr82292.patch
@@ -1,18 +1,19 @@
-From 2371914a05f8f2763dffe6e2511d0870bcd6b461 Mon Sep 17 00:00:00 2001
+From 0babb88efc4d36f3defafc3c3c0343793fa05d52 Mon Sep 17 00:00:00 2001
 From: Giacomo Stevanato <giaco.stevanato@gmail.com>
 Date: Wed, 3 Mar 2021 21:09:01 +0100
 Subject: [PATCH 1/2] Prevent Zip specialization from calling
  __iterator_get_unchecked twice with the same index after calling next_back
 
+(cherry picked from commit 2371914a05f8f2763dffe6e2511d0870bcd6b461)
 ---
  library/core/src/iter/adapters/zip.rs | 13 +++++++++----
  1 file changed, 9 insertions(+), 4 deletions(-)
 
 diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
-index 817fc2a51e981..ea7a809c6badb 100644
+index dcbcb1ce7200..7dac0c63ca2d 100644
 --- a/library/core/src/iter/adapters/zip.rs
 +++ b/library/core/src/iter/adapters/zip.rs
-@@ -13,9 +13,10 @@ use crate::iter::{InPlaceIterable, SourceIter, TrustedLen};
+@@ -13,9 +13,10 @@
  pub struct Zip<A, B> {
      a: A,
      b: B,
@@ -24,7 +25,7 @@ index 817fc2a51e981..ea7a809c6badb 100644
  }
  impl<A: Iterator, B: Iterator> Zip<A, B> {
      pub(in crate::iter) fn new(a: A, b: B) -> Zip<A, B> {
-@@ -110,6 +111,7 @@ where
+@@ -110,6 +111,7 @@ impl<A, B> ZipImpl<A, B> for Zip<A, B>
              b,
              index: 0, // unused
              len: 0,   // unused
@@ -32,7 +33,7 @@ index 817fc2a51e981..ea7a809c6badb 100644
          }
      }
  
-@@ -184,8 +186,9 @@ where
+@@ -184,8 +186,9 @@ impl<A, B> ZipImpl<A, B> for Zip<A, B>
      B: TrustedRandomAccess + Iterator,
  {
      fn new(a: A, b: B) -> Self {
@@ -44,24 +45,24 @@ index 817fc2a51e981..ea7a809c6badb 100644
      }
  
      #[inline]
-@@ -197,7 +200,7 @@ where
+@@ -197,7 +200,7 @@ fn next(&mut self) -> Option<(A::Item, B::Item)> {
              unsafe {
                  Some((self.a.__iterator_get_unchecked(i), self.b.__iterator_get_unchecked(i)))
              }
--        } else if A::MAY_HAVE_SIDE_EFFECT && self.index < self.a.size() {
-+        } else if A::MAY_HAVE_SIDE_EFFECT && self.index < self.a_len {
+-        } else if A::may_have_side_effect() && self.index < self.a.size() {
++        } else if A::may_have_side_effect() && self.index < self.a_len {
              let i = self.index;
              self.index += 1;
              self.len += 1;
-@@ -262,6 +265,7 @@ where
+@@ -264,6 +267,7 @@ fn next_back(&mut self) -> Option<(A::Item, B::Item)>
                      for _ in 0..sz_a - self.len {
                          self.a.next_back();
                      }
 +                    self.a_len = self.len;
                  }
                  let sz_b = self.b.size();
-                 if B::MAY_HAVE_SIDE_EFFECT && sz_b > self.len {
-@@ -273,6 +277,7 @@ where
+                 if b_side_effect && sz_b > self.len {
+@@ -275,6 +279,7 @@ fn next_back(&mut self) -> Option<(A::Item, B::Item)>
          }
          if self.index < self.len {
              self.len -= 1;
@@ -69,21 +70,25 @@ index 817fc2a51e981..ea7a809c6badb 100644
              let i = self.len;
              // SAFETY: `i` is smaller than the previous value of `self.len`,
              // which is also smaller than or equal to `self.a.len()` and `self.b.len()`
+-- 
+2.31.1
 
-From c1bfb9a78db6d481be1d03355672712c766e20b0 Mon Sep 17 00:00:00 2001
+
+From 19af66a6f3e2bbb4780bb9eae7eb53bd13e3dd0f Mon Sep 17 00:00:00 2001
 From: Giacomo Stevanato <giaco.stevanato@gmail.com>
 Date: Fri, 19 Feb 2021 15:25:09 +0100
 Subject: [PATCH 2/2] Add relevant test
 
+(cherry picked from commit c1bfb9a78db6d481be1d03355672712c766e20b0)
 ---
  library/core/tests/iter/adapters/zip.rs | 23 +++++++++++++++++++++++
  1 file changed, 23 insertions(+)
 
 diff --git a/library/core/tests/iter/adapters/zip.rs b/library/core/tests/iter/adapters/zip.rs
-index a597710392952..000c15f72c886 100644
+index a59771039295..000c15f72c88 100644
 --- a/library/core/tests/iter/adapters/zip.rs
 +++ b/library/core/tests/iter/adapters/zip.rs
-@@ -265,3 +265,26 @@ fn test_issue_82282() {
+@@ -265,3 +265,26 @@ fn overflowed_zip(arr: &[i32]) -> impl Iterator<Item = (i32, &())> {
          panic!();
      }
  }
@@ -110,3 +115,6 @@ index a597710392952..000c15f72c886 100644
 +    zip.next();
 +    assert_eq!(called.get(), 1);
 +}
+-- 
+2.31.1
+

diff --git a/dev-lang/rust/files/1.51.0-CVE-2021-31162.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr83629.patch
similarity index 61%
rename from dev-lang/rust/files/1.51.0-CVE-2021-31162.patch
rename to dev-lang/rust/files/rustc-1.51.0-backport-pr83629.patch
index fd9165ea3c5..7f68d95cc7f 100644
--- a/dev-lang/rust/files/1.51.0-CVE-2021-31162.patch
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr83629.patch
@@ -1,7 +1,7 @@
-From fa89c0fbcfa8f4d44f153b1195ec5a305540ffc4 Mon Sep 17 00:00:00 2001
+From 3834e7b7393bf1a0d7df02ccd1d2e896c1465769 Mon Sep 17 00:00:00 2001
 From: The8472 <git@infinite-source.de>
 Date: Mon, 29 Mar 2021 04:22:34 +0200
-Subject: [PATCH 1/3] add testcase for double-drop during Vec in-place
+Subject: [PATCH 1/2] add testcase for double-drop during Vec in-place
  collection
 
 ---
@@ -9,10 +9,10 @@ Subject: [PATCH 1/3] add testcase for double-drop during Vec in-place
  1 file changed, 37 insertions(+), 1 deletion(-)
 
 diff --git a/library/alloc/tests/vec.rs b/library/alloc/tests/vec.rs
-index c142536cd2dfb..b926c697d58ab 100644
+index 5c7ff67bc621..4cdb7eefcdf1 100644
 --- a/library/alloc/tests/vec.rs
 +++ b/library/alloc/tests/vec.rs
-@@ -1027,7 +1027,7 @@ fn test_from_iter_specialization_head_tail_drop() {
+@@ -954,7 +954,7 @@ fn test_from_iter_specialization_head_tail_drop() {
  }
  
  #[test]
@@ -21,7 +21,7 @@ index c142536cd2dfb..b926c697d58ab 100644
      let drop_count: Vec<_> = (0..=2).map(|_| Rc::new(())).collect();
      let src: Vec<_> = drop_count.iter().cloned().collect();
      let iter = src.into_iter();
-@@ -1050,6 +1050,42 @@ fn test_from_iter_specialization_panic_drop() {
+@@ -977,6 +977,42 @@ fn test_from_iter_specialization_panic_drop() {
      );
  }
  
@@ -64,11 +64,14 @@ index c142536cd2dfb..b926c697d58ab 100644
  #[test]
  fn test_cow_from() {
      let borrowed: &[_] = &["borrowed", "(slice)"];
+-- 
+2.31.1
 
-From 421f5d282a51e130d3ca7c4524d8ad6753437da9 Mon Sep 17 00:00:00 2001
+
+From 8e2706343e1ce1c5a2d3a2ceaaaa010aaeb21d93 Mon Sep 17 00:00:00 2001
 From: The8472 <git@infinite-source.de>
 Date: Mon, 29 Mar 2021 04:22:48 +0200
-Subject: [PATCH 2/3] fix double-drop in in-place collect specialization
+Subject: [PATCH 2/2] fix double-drop in in-place collect specialization
 
 ---
  library/alloc/src/vec/into_iter.rs          | 27 ++++++++++++++-------
@@ -76,10 +79,10 @@ Subject: [PATCH 2/3] fix double-drop in in-place collect specialization
  2 files changed, 20 insertions(+), 11 deletions(-)
 
 diff --git a/library/alloc/src/vec/into_iter.rs b/library/alloc/src/vec/into_iter.rs
-index bcbdffabc7fbe..324e894bafd23 100644
+index f131d06bb18f..74adced53f6d 100644
 --- a/library/alloc/src/vec/into_iter.rs
 +++ b/library/alloc/src/vec/into_iter.rs
-@@ -85,20 +85,29 @@ impl<T, A: Allocator> IntoIter<T, A> {
+@@ -85,20 +85,29 @@ fn as_raw_mut_slice(&mut self) -> *mut [T] {
          ptr::slice_from_raw_parts_mut(self.ptr as *mut T, self.len())
      }
  
@@ -119,10 +122,10 @@ index bcbdffabc7fbe..324e894bafd23 100644
  }
  
 diff --git a/library/alloc/src/vec/source_iter_marker.rs b/library/alloc/src/vec/source_iter_marker.rs
-index 50882fc17673e..e857d284d3ab6 100644
+index 8c0e95559fa1..9301f7a5184e 100644
 --- a/library/alloc/src/vec/source_iter_marker.rs
 +++ b/library/alloc/src/vec/source_iter_marker.rs
-@@ -69,9 +69,9 @@ where
+@@ -78,9 +78,9 @@ impl<T, I> SpecFromIter<T, I> for Vec<T>
          }
  
          // drop any remaining values at the tail of the source
@@ -132,64 +135,8 @@ index 50882fc17673e..e857d284d3ab6 100644
 +        // if the drop panics then we also leak any elements collected into dst_buf
 +        src.forget_allocation_drop_remaining();
  
-         let vec = unsafe { Vec::from_raw_parts(dst_buf, len, cap) };
- 
-
-From 328a5e040780984c60dde2db300dad4f1323c39d Mon Sep 17 00:00:00 2001
-From: The8472 <git@infinite-source.de>
-Date: Fri, 2 Apr 2021 23:06:05 +0200
-Subject: [PATCH 3/3] cleanup leak after test to make miri happy
-
----
- library/alloc/tests/vec.rs | 16 +++++++++++++---
- 1 file changed, 13 insertions(+), 3 deletions(-)
+         let vec = unsafe {
+             let len = dst.offset_from(dst_buf) as usize;
+-- 
+2.31.1
 
-diff --git a/library/alloc/tests/vec.rs b/library/alloc/tests/vec.rs
-index b926c697d58ab..b9fe07c73e55e 100644
---- a/library/alloc/tests/vec.rs
-+++ b/library/alloc/tests/vec.rs
-@@ -1,3 +1,4 @@
-+use alloc::boxed::Box;
- use std::borrow::Cow;
- use std::cell::Cell;
- use std::collections::TryReserveError::*;
-@@ -1056,14 +1057,14 @@ fn test_from_iter_specialization_panic_during_drop_leaks() {
- 
-     #[derive(Debug)]
-     enum Droppable {
--        DroppedTwice(Box<i32>),
-+        DroppedTwice,
-         PanicOnDrop,
-     }
- 
-     impl Drop for Droppable {
-         fn drop(&mut self) {
-             match self {
--                Droppable::DroppedTwice(_) => {
-+                Droppable::DroppedTwice => {
-                     unsafe {
-                         DROP_COUNTER += 1;
-                     }
-@@ -1078,12 +1079,21 @@ fn test_from_iter_specialization_panic_during_drop_leaks() {
-         }
-     }
- 
-+    let mut to_free: *mut Droppable = core::ptr::null_mut();
-+    let mut cap = 0;
-+
-     let _ = std::panic::catch_unwind(AssertUnwindSafe(|| {
--        let v = vec![Droppable::DroppedTwice(Box::new(123)), Droppable::PanicOnDrop];
-+        let mut v = vec![Droppable::DroppedTwice, Droppable::PanicOnDrop];
-+        to_free = v.as_mut_ptr();
-+        cap = v.capacity();
-         let _ = v.into_iter().take(0).collect::<Vec<_>>();
-     }));
- 
-     assert_eq!(unsafe { DROP_COUNTER }, 1);
-+    // clean up the leak to keep miri happy
-+    unsafe {
-+        Vec::from_raw_parts(to_free, 0, cap);
-+    }
- }
- 
- #[test]

diff --git a/dev-lang/rust/rust-1.51.0-r1.ebuild b/dev-lang/rust/rust-1.51.0-r2.ebuild
similarity index 98%
rename from dev-lang/rust/rust-1.51.0-r1.ebuild
rename to dev-lang/rust/rust-1.51.0-r2.ebuild
index e2f25109d3e..2212ce60518 100644
--- a/dev-lang/rust/rust-1.51.0-r1.ebuild
+++ b/dev-lang/rust/rust-1.51.0-r2.ebuild
@@ -136,11 +136,11 @@ PATCHES=(
 	"${FILESDIR}"/1.47.0-ignore-broken-and-non-applicable-tests.patch
 	"${FILESDIR}"/1.49.0-gentoo-musl-target-specs.patch
 	"${FILESDIR}"/1.51.0-bootstrap-panic.patch
-	"${FILESDIR}"/1.51.0-CVE-2020-36323.patch
-	"${FILESDIR}"/1.51.0-CVE-2021-28876.patch
-	#"${FILESDIR}"/1.51.0-CVE-2021-28878.patch
-	#"${FILESDIR}"/1.51.0-CVE-2021-28879.patch
-	"${FILESDIR}"/1.51.0-CVE-2021-31162.patch
+	"${FILESDIR}"/rustc-1.51.0-backport-pr81728.patch
+	"${FILESDIR}"/rustc-1.51.0-backport-pr81741.patch
+	"${FILESDIR}"/rustc-1.51.0-backport-pr82289.patch
+	"${FILESDIR}"/rustc-1.51.0-backport-pr82292.patch
+	"${FILESDIR}"/rustc-1.51.0-backport-pr83629.patch
 )
 
 S="${WORKDIR}/${MY_P}-src"