Re: stackguard fix in Red Hat and Ubuntu kernels

[Vasily Averin <vvs () virtuozzo com>]

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