Xen 64bit PV Guest - pagetable use-after-type-change Breakout

Xen 64bit PV Guest - pagetable use-after-type-change Breakout Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1231 This is a bug in Xen that permits an attacker with control over the kernel of a 64bit X86 PV guest to write arbitrary entries into a live top-level pagetable. To...