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Date: Thu, 22 Jun 2017 17:24:17 +0300
From: Vasily Averin <vvs@...tuozzo.com>
To: Greg KH <greg@...ah.com>, oss-security@...ts.openwall.com
Cc: Konstantin Khorenko <khorenko@...tuozzo.com>
Subject: Re: stackguard fix in Red Hat and Ubuntu kernels
As far as I know this problem (SIGSEGV on access to mmap area) was not affect mainline,
mainline patch was correct.
We observe some problem with stack grow down,
https://patchwork.kernel.org/patch/9802797/
and all responsible developers are informed already.
Thank you,
Vasily Averin
On 2017-06-22 16:38, Greg KH wrote:
> On Thu, Jun 22, 2017 at 02:18:33PM +0200, Marcus Meissner wrote:
>> Hi,
>>
>> Yes, we at SUSE are seeing similar crashes. Thanks for the reproducer!
>
> The patches upstream in Linus's tree should resolve these crashes,
> correct? If not, please let the kernel developers know, as we ended up
> going with a different set of changes than the distros shipped, and are
> still working on getting these backported to older stable kernels at the
> moment.
>
> thanks,
>
> greg k-h
>
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