From: Richard Yao <ryao@gentoo.org>
To: gentoo-dev@lists.gentoo.org
Cc: Ryan Hill <dirtyepic@gentoo.org>
Subject: Re: [gentoo-dev] Re: Improve the security of the default profile
Date: Thu, 12 Sep 2013 11:07:20 -0400 [thread overview]
Message-ID: <5231D8A8.2030503@gentoo.org> (raw)
In-Reply-To: <20130911000729.46cda29c@caribou.gateway.2wire.net>
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On 09/11/2013 02:07 AM, Ryan Hill wrote:
> On Tue, 10 Sep 2013 18:41:34 -0400
> Richard Yao <ryao@gentoo.org> wrote:
>
>> A few thoughts:
>>
>> 1. The kernel expects -fno-stack-protector to be the default. What will
>> the effect be on kernel configuration once -fstack-protector is the default?
>
> The kernel has supported building with -fstack-protector since 2.6.19, (at least
> on x86/x86-64). It's controlled by CONFIG_CC_STACKPROTECTOR and if it's
> disabled then -fno-stack-protector is explicitly added to the command line.
That is good news. I admit that I was being lazy in not looking this up
myself, but things probably are more efficient when the people already
looking into this are the ones who check these loose ends.
>> 2. We should make sure that -fno-stack-protector is a supported CFLAG.
>> This will make it easier to handle complaints from the vocal minority of
>> our user base that want every last percentage point of performance.
>
> If by supported you mean that they won't be removed by things like strip-flags,
> then yes, -fstack-protector -fstack-protector-all -fno-stack-protector and
> -fno-stack-protector-all are all on the whitelist.
That is good.
>> 3. I would like to point out that we are talking about deviating from
>> upstream behavior and everyone is okay with it. Anyone who thinks we
>> should stick to upstream when it is not good for us should speak now or
>> risk being asked "where were you when..." whenever they try to use
>> upstream as an excuse to hold back progress. ;)
>
> In this case it seems every other distro is already doing this, so we're in
> good company.
Agreed. I just wanted to say something as insurance for the future. ;)
Anyway, I will be happy to see it integrated into the tree once all of
the hacks around it have been corrected.
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next prev parent reply other threads:[~2013-09-12 15:07 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-05 10:13 [gentoo-dev] Improve the security of the default profile Agostino Sarubbo
2013-09-05 10:47 ` Tom Wijsman
2013-09-05 10:54 ` Agostino Sarubbo
2013-09-05 11:09 ` Tom Wijsman
2013-09-05 11:58 ` Agostino Sarubbo
2013-09-05 13:33 ` Rich Freeman
2013-09-05 10:54 ` Sergey Popov
2013-09-05 11:06 ` [gentoo-dev] " Mike Frysinger
2013-09-07 3:48 ` Rick "Zero_Chaos" Farina
2013-09-07 6:36 ` Parker Schmitt
2013-09-05 12:09 ` [gentoo-dev] " Ciaran McCreesh
2013-09-05 12:38 ` Tom Wijsman
2013-09-07 18:24 ` [gentoo-dev] " Martin Vaeth
2013-09-07 17:25 ` Ryan Hill
2013-09-07 18:10 ` Martin Vaeth
[not found] ` < 20130907151110.13ebc8a2@caribou.gateway.2wire.net>
2013-09-07 18:37 ` Rich Freeman
2013-09-07 18:50 ` Pacho Ramos
2013-09-07 19:52 ` Martin Vaeth
2013-09-07 21:11 ` Ryan Hill
2013-09-07 23:08 ` Rick "Zero_Chaos" Farina
2013-09-07 23:12 ` Rich Freeman
2013-09-08 14:12 ` Hinnerk van Bruinehsen
2013-09-09 0:06 ` Ryan Hill
2013-09-09 12:11 ` Martin Vaeth
2013-09-09 12:21 ` Rich Freeman
2013-09-10 3:00 ` Ryan Hill
2013-09-10 3:46 ` Peter Stuge
2013-09-11 22:04 ` Magnus Granberg
2013-09-10 17:50 ` Jeroen Roovers
2013-09-10 22:41 ` Richard Yao
2013-09-11 1:17 ` Rich Freeman
2013-09-12 15:03 ` Richard Yao
2013-09-12 15:12 ` Richard Yao
2013-09-11 6:07 ` Ryan Hill
2013-09-11 18:23 ` Magnus Granberg
2013-09-12 15:07 ` Richard Yao [this message]
[not found] ` <522FA01E.4070602 @gentoo.org>
[not found] ` <CAGfcS_=VwAT0xYAny9hfd3tpRM61dt39Zcm7p0N8_pLzeyw1FQ@mail. gmail.com>
2013-09-11 4:49 ` Duncan
2013-09-11 6:49 ` Ryan Hill
2013-09-11 18:48 ` Magnus Granberg
2013-09-08 11:05 ` Martin Vaeth
2013-09-09 3:24 ` Ryan Hill
2013-09-08 11:24 ` Martin Vaeth
2013-09-12 15:23 ` Anthony G. Basile
2013-09-13 6:08 ` Ryan Hill
2013-09-07 19:50 ` Rick "Zero_Chaos" Farina
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