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Re: [PATCH] Avoid accessing corrupted stack from __stack_chk_fail [BZ #21752]

From: "H.J. Lu" <hjl dot tools at gmail dot com>
To: Florian Weimer <fw at deneb dot enyo dot de>
Cc: GNU C Library <libc-alpha at sourceware dot org>
Date: Mon, 24 Jul 2017 10:10:26 -0700
Subject: Re: [PATCH] Avoid accessing corrupted stack from __stack_chk_fail [BZ #21752]
Authentication-results: sourceware.org; auth=none
References: <20170719185036.GA32763@gmail.com> <CAMe9rOqrOBkCyL_Ymv7BKzSO5yiYzYLVuU2gZPV-CX5mKPJFyg@mail.gmail.com> <87d18p3gsb.fsf@mid.deneb.enyo.de>

On Mon, Jul 24, 2017 at 10:07 AM, Florian Weimer <fw@deneb.enyo.de> wrote:
> * H. J. Lu:
>
>> Glibc should avoid accessing corrupted stack from __fortify_fail_abort,
>> which somewhat defeats the purpose of -fstack-protector.
>
> Patch is reasonable (but more work on bug 21752 is unfortunately
> needed).

That is true.  It is only the first step.  That is why I didn't close it.

-- 
H.J.

References:
- [PATCH] Avoid accessing corrupted stack from __stack_chk_fail [BZ #21752]
  - From: H.J. Lu
- Re: [PATCH] Avoid accessing corrupted stack from __stack_chk_fail [BZ #21752]
  - From: H.J. Lu
- Re: [PATCH] Avoid accessing corrupted stack from __stack_chk_fail [BZ #21752]
  - From: Florian Weimer

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