Re: [PATCH v2 06/13] KVM: x86: Protect kvm_lapic_reg_write() from Spectre-v1/L1TF attacks

Jim Mattson
2020-01-06T20:18:08Z

On Wed, Dec 11, 2019 at 12:48 PM Marios Pomonis <pomonis@google.com> wrote:
>
> This fixes a Spectre-v1/L1TF vulnerability in kvm_lapic_reg_write().
> This function contains index computations based on the
> (attacker-controlled) MSR number.
>
> Fixes: commit 0105d1a52640 ("KVM: x2apic interface to lapic")
>
> 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>