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|e73c688b-f7e6-11ea-88f8-901b0ef719ab||FreeBSD -- bhyve SVM guest escape|
A number of AMD virtualization instructions operate on host physical addresses, are not subject to nested page table translation, and guest use of these instructions was not trapped.
From kernel mode a malicious guest can write to arbitrary host memory (with some constraints), affording the guest full control of the host.
ge 12.1 lt 12.1_10
ge 11.4 lt 11.4_4
ge 11.3 lt 11.3_14