Description: KVM L1 guest escape
References:
 https://bugs.chromium.org/p/project-zero/issues/detail?id=1589
Notes:
 bwh> Introduced by commit 70f3aac964ae "kvm: nVMX: Remove superfluous VMX
 bwh> instruction fault checks".
Bugs:
upstream: released (4.18-rc1) [727ba748e110b4de50d142edca9d6a9b7e6111d8]
4.9-upstream-stable: N/A "Vulnerability introduced later"
3.16-upstream-stable: N/A "Vulnerability introduced later"
sid: released (4.16.16-1)
4.9-stretch-security: N/A "Vulnerability introduced later"
3.16-jessie-security: N/A "Vulnerability introduced later"