Buggy CVE-2017-1000364 patches segfaulting embedded VMs

[Moritz Bechler]

Hi,

not sure whether this is the right list for this, but just so that maybe
not everybody has to figure this out on his own,

The custom kernel patches currently deployed by various Linux
distributions (from the looks of it at least RedHat, SUSE, Debian and
Ubuntu) for CVE-2017-1000364/Stack Clash contain a bug that causes the
VM initialization to SEGV ( _expandstack_to) if launched on the main
thread. This affects various embedded uses.

The upstream kernel patch seems to be fine, hopefully that will arrive
in the affected distributions shortly.

http://www.openwall.com/lists/oss-security/2017/06/22/6
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=865549
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1699772
https://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/604567

regards

Moritz

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