Re: [PATCH v2 08/13] KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Dec 11, 2019 at 12:49 PM Marios Pomonis <pomonis@xxxxxxxxxx> wrote:
>
> This fixes a Spectre-v1/L1TF vulnerability in the get_gp_pmc() and
> get_fixed_pmc() functions.
> They both contain index computations based on the (attacker-controlled)
> MSR number.
>
> Fixes: commit 25462f7f5295 ("KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch")
>
> 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>



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux