lp:~kamalmostafa/ubuntu/+source/linux/+git/vivid

Author: Paolo Bonzini
Author Date: 2015-11-26 12:09:59 UTC

KVM: svm: unconditionally intercept #DB

This is needed to avoid the possibility that the guest triggers
an infinite stream of #DB exceptions (CVE-2015-8104).

VMX is not affected: because it does not save DR6 in the VMCS,
it already intercepts #DB unconditionally.

Reported-by: Jan Beulich <jbeulich@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit cbdb967af3d54993f5814f1cee0ed311a055377d)
CVE-2015-8104
BugLink: https://bugs.launchpad.net/bugs/1520184
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

Author: Kamal Mostafa
Author Date: 2015-11-20 17:49:55 UTC

UBUNTU: Ubuntu-3.19.0-37.42

Signed-off-by: Kamal Mostafa <kamal@canonical.com>