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Lucas Holt
committed
on 15 Sep
A number of AMD virtualization instructions operate on host physical addresses, are not subject to nested page table translation, and guest … Show more
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.

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