This is the mail archive of the libc-alpha@sourceware.org mailing list for the glibc project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [ping][PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV

From: "H.J. Lu" <hjl dot tools at gmail dot com>
To: Joseph Myers <joseph at codesourcery dot com>
Cc: Paul Archard <paul dot archard at proceranetworks dot com>, OndÅej BÃlka <neleai at seznam dot cz>, MyungJoo Ham <myungjoo dot ham at samsung dot com>, GNU C Library <libc-alpha at sourceware dot org>
Date: Wed, 26 Nov 2014 21:06:32 -0800
Subject: Re: [ping][PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV
Authentication-results: sourceware.org; auth=none
References: <1385453523-19632-1-git-send-email-myungjoo dot ham at samsung dot com> <Pine dot LNX dot 4 dot 64 dot 1311261358020 dot 29140 at digraph dot polyomino dot org dot uk> <00a901ceead2$d96bb770$8c432650$ at proceranetworks dot com> <Pine dot LNX dot 4 dot 64 dot 1311270109090 dot 31261 at digraph dot polyomino dot org dot uk> <20140116182120 dot GA20838 at domone dot podge> <20140204121120 dot GB22572 at domone dot podge> <Pine dot LNX dot 4 dot 64 dot 1402041422330 dot 18044 at digraph dot polyomino dot org dot uk> <00c301cf21d3$ca7253e0$5f56fba0$ at proceranetworks dot com> <CAMe9rOpjQdvOQmcJ40URrLwNZDCqK+TV5s=Uf+ozsOB-7tpBFQ at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1411261622420 dot 854 at digraph dot polyomino dot org dot uk> <CAMe9rOrK-sdgGwKHX2HxBiO=6nFeo9mXzj6ue79qe5eOYDiVAA at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1411261707030 dot 854 at digraph dot polyomino dot org dot uk> <CAMe9rOr8vebftVYEMXxf9g9QZqLvBc20QxF8NyhNYka8g_ESjQ at mail dot gmail dot com>

On Wed, Nov 26, 2014 at 9:39 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Wed, Nov 26, 2014 at 9:07 AM, Joseph Myers <joseph@codesourcery.com> wrote:
>> On Wed, 26 Nov 2014, H.J. Lu wrote:
>>
>>> On Wed, Nov 26, 2014 at 8:23 AM, Joseph Myers <joseph@codesourcery.com> wrote:
>>> > On Wed, 26 Nov 2014, H.J. Lu wrote:
>>> >
>>> >> Is Paul's paperwork ready now?
>>> >
>>> > There is an assignment for past and future changes (dated 2014-5-13) and a
>>> > disclaimer from Procera Networks for past changes (dated 2014-1-21).
>>> >
>>>
>>> Can we move forward with Paul's fix?
>>
>> Someone needs to retest and resubmit it.  It's so old it's not in
>> patchwork (which only tracks patch submissions back to this March).
>>
>
> I will rebase and submit a new patch with a testcase.

Paul's fix is based on _dl_update_slotinfo in the same file.  However,
his patch failed to properly convert INSTALL_NEW_DTV to INSTALL_DTV.
I believe this is the correct fix.  I will submit the complete patch with a
testcase later.


-- 
H.J.

Attachment: pr13862.patch
Description: Binary data

Follow-Ups:
- [PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV
  - From: H.J. Lu

References:
- Re: [ping][PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV
  - From: H.J. Lu
- Re: [ping][PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV
  - From: Joseph Myers
- Re: [ping][PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV
  - From: H.J. Lu
- Re: [ping][PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV
  - From: Joseph Myers
- Re: [ping][PATCH][BZ #13862] Reuse of cached stack can cause bounds overrun of thread DTV
  - From: H.J. Lu

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]