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Date: Thu, 22 Jun 2017 17:24:17 +0300
From: Vasily Averin <>
To: Greg KH <>,
Cc: Konstantin Khorenko <>
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,

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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