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Groups > linux.debian.kernel > #62236

Bug#904385: arm64: sigaltstack fails with MINSIGSTKSZ for 32-bit processes

From Steve McIntyre <steve@einval.com>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#904385: arm64: sigaltstack fails with MINSIGSTKSZ for 32-bit processes
Date 2018-09-26 12:50 +0200
Message-ID <wCfyh-5Vu-1@gated-at.bofh.it> (permalink)
References (1 earlier) <weOQy-3Py-1@gated-at.bofh.it> <weP0d-3TQ-3@gated-at.bofh.it> <wftTI-6UN-5@gated-at.bofh.it> <weOQy-3Py-1@gated-at.bofh.it> <wftTI-6UN-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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On Wed, Jul 25, 2018 at 04:25:03PM +0100, Steve McIntyre wrote:
>On Mon, Jul 23, 2018 at 09:40:33PM +0200, Aurelien Jarno wrote:
>>control: affects -1 glibc
>>control: found linux/4.17.6-2
>>
>>On 2018-07-23 21:31, Aurelien Jarno wrote:
>>> Package: src:linux
>>> Version: 4.9.110-1
>>> Severity: normal
>>> 
>>> Dear Maintainer,
>>> 
>>> The arm64 kernel allows one to run aarch32 processes on an aarch64
>>> processor (if it has support for it), using the standard 32/64-bit
>>> syscall compatibility. However this compat layer does not correctly
>>> validate the arguments of the sigaltstack syscall.
>>> 
>>
>>I forgot to say that the problem is reproducible with kernel 4.17.6.
>
>Fix proposed in https://lkml.org/lkml/2018/7/25/409 

At Will's suggestion, I've just tested that patchset locally and it
definitely fixes this problem so I've added a Tested-by: for him.

-- 
Steve McIntyre, Cambridge, UK.                                steve@einval.com
There's no sensation to compare with this
Suspended animation, A state of bliss

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Bug#904385: arm64: sigaltstack fails with MINSIGSTKSZ for 32-bit processes Aurelien Jarno <aurel32@debian.org> - 2018-07-23 21:40 +0200
  Processed (with 1 error): Re: Bug#904385: arm64: sigaltstack  fails with MINSIGSTKSZ for 32-bit processes "Debian Bug Tracking System" <owner@bugs.debian.org> - 2018-07-23 21:50 +0200
  Bug#904385: arm64: sigaltstack fails with MINSIGSTKSZ for 32-bit processes Aurelien Jarno <aurel32@debian.org> - 2018-07-23 21:50 +0200
    Bug#904385: arm64: sigaltstack fails with MINSIGSTKSZ for 32-bit processes Steve McIntyre <steve@einval.com> - 2018-07-25 17:30 +0200
      Bug#904385: arm64: sigaltstack fails with MINSIGSTKSZ for 32-bit processes Steve McIntyre <steve@einval.com> - 2018-09-26 12:50 +0200
        Bug#904385: arm64: sigaltstack fails with MINSIGSTKSZ for 32-bit processes Aurelien Jarno <aurelien@aurel32.net> - 2019-07-29 22:30 +0200
  Processed: Re: Bug#904385: arm64: sigaltstack fails with  MINSIGSTKSZ for 32-bit processes "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-07-29 22:30 +0200
  Bug#904385: marked as done (arm64: sigaltstack fails with  MINSIGSTKSZ for 32-bit processes) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-08-26 20:00 +0200

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