Re: [PATCH v2 05/13] KVM: x86: Protect ioapic_write_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_write_indirect(). This function contains index computations based on the (attacker-controlled) IOREGSEL register.

This patch depends on patch "KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks".

Fixes: commit 70f93dae32ac ("KVM: Use temporary variable to shorten lines.")

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