Re: [PATCH v2 01/13] KVM: x86: Protect x86_decode_insn from Spectre-v1/L1TF attacks

Jim Mattson
2020-01-06T20:16:14Z

On Wed, Dec 11, 2019 at 12:48 PM Marios Pomonis <pomonis@google.com> wrote:
>
> This fixes a Spectre-v1/L1TF vulnerability in x86_decode_insn().
> kvm_emulate_instruction() (an ancestor of x86_decode_insn()) is an exported
> symbol, so KVM should treat it conservatively from a security perspective.
>
> Fixes: commit 045a282ca415 ("KVM: emulator: implement fninit, fnstsw, fnstcw")
>
> Signed-off-by: Nick Finco <nifi@google.com>
> Signed-off-by: Marios Pomonis <pomonis@google.com>
> Reviewed-by: Andrew Honig <ahonig@google.com>
> Cc: stable@vger.kernel.org

Reviewed-by: Jim Mattson <jmattson@google.com>