Re: [PATCH v2 09/13] KVM: x86: Protect MSR-based index computations from Spectre-v1/L1TF attacks in x86.c

On Wed, Dec 11, 2019 at 12:49 PM Marios Pomonis pomonis@google.com wrote:

This fixes a Spectre-v1/L1TF vulnerability in set_msr_mce() and get_msr_mce(). Both functions contain index computations based on the (attacker-controlled) MSR number.

Fixes: commit 890ca9aefa78 ("KVM: Add MCE support")

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