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Bug#865549: linux-image-3.16.0-4-powerpc64le: stackguard fix incorrect; probably causes cargo to segfault on ppc64el



Control: tag -1 moreinfo

On Thu, 22 Jun 2017 19:02:26 +0200 Ximin Luo <infinity0@debian.org>
wrote:
> Package: linux-image-3.16.0-4-powerpc64le
> Version: 3.16.43-2+deb8u1
> Severity: critical
> Justification: breaks unrelated software
> 
> Dear Maintainer,
> 
> I have been getting segfaults trying to build cargo on ppc64el
> 
> https://github.com/rust-lang/cargo/issues/4197
> 
> The signs point to the recent stack guard fix as being the culprit, I can
> confirm that the test program given here:
> 
> http://www.openwall.com/lists/oss-security/2017/06/22/6
> 
> indicates the presence of the bug on plummer.debian.org. I'm not very familiar
> with kernel development so I don't know where the proper fix is, but subsequent
> discussion on that thread suggests that mainline has the "correct fix" whereas
> some distros applied an incorrect one.

Can you please test with this candidate fix?
https://people.debian.org/~benh/packages/CVE-2017-1000364/

Ben.

-- 
Ben Hutchings
Sturgeon's Law: Ninety percent of everything is crap.

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