Re: [PATCH v2 04/13] KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks

On Wed, Dec 11, 2019 at 12:48 PM Marios Pomonis pomonis@google.com wrote:

This fixes a Spectre-v1/L1TF vulnerability in ioapic_read_indirect(). This function contains index computations based on the (attacker-controlled) IOREGSEL register.

Fixes: commit a2c118bfab8b ("KVM: Fix bounds checking in ioapic indirect register reads (CVE-2013-1798)")

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