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



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 

-- 
Steve McIntyre, Cambridge, UK.                                steve@einval.com
You raise the blade, you make the change... You re-arrange me 'til I'm sane...


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