CVE-2017-1000364 Advisory

Joshua R. Poulson jrp at
Fri Jun 23 02:47:39 UTC 2017

We are definitely seeing customer applications affected by increased
stack size requirements, especially with jsvc. I am advising a minimum
setting of JSVC_EXTRA_OPTS to add "-Xss1280k"

Thanks, --jrp

On Thu, Jun 22, 2017 at 11:01 AM, Stefan Bader
<stefan.bader at> wrote:
> Hi,
> We are investigating a possible regression for the recently released Ubuntu
> kernel versions provided on Monday, June 19th for CVE-2017-1000364 [1]. The
> regression experienced can be seen as an increased level of segmentation faults
> on the patched machines. We believe other major Linux distributions are also
> affected by this regression.
> Users of Ubuntu should evaluate their scenario and decide if upgrading to
> mitigate CVE-2017-1000364 is correct for their environment at this time.
> We will keep you updated and let you know once we have identified a workaround
> or resolution to this problem.
> Regards,
> The Canonical Kernel Team
> [1] -
> --
> kernel-team mailing list
> kernel-team at

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