CVE-2016-8630 kernel: kvm: x86: NULL pointer dereference duringinstruction decode

[P J P <ppandit () redhat com>]

  Hello,

Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support 
is vulnerable to a null pointer dereference flaw. It could occur on x86 
platform, when emulating an undefined instruction.

A user/process could use this flaw to crash the host kernel resulting in DoS.

Upstream patch:
---------------
  -> https://git.kernel.org/linus/d9092f52d7e61dd1557f2db2400ddb430e85937e

Reference:
----------
  -> https://bugzilla.redhat.com/show_bug.cgi?id=1393350

CVE-2016-8630 was assigned to this issue by Red Hat Inc.

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
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