Re: [PATCH v2 06/13] KVM: x86: Protect kvm_lapic_reg_write() from Spectre-v1/L1TF attacks
From: Jim Mattson
Date: Mon Jan 06 2020 - 15:18:08 EST
On Wed, Dec 11, 2019 at 12:48 PM Marios Pomonis <pomonis@xxxxxxxxxx> 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@xxxxxxxxxx>
> Signed-off-by: Marios Pomonis <pomonis@xxxxxxxxxx>
> Reviewed-by: Andrew Honig <ahonig@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>