KVM: arm64: vgic-v3: Sanitise guest writes to GICR_INVLPIR

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commit d561491ba9 upstream.

Make sure we filter out non-LPI invalidation when handling writes
to GICR_INVLPIR.

Fixes: 4645d11f4a ("KVM: arm64: vgic-v3: Implement MMIO-based LPI invalidation")
Reported-by: Alexander Potapenko <glider@google.com>
Tested-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20241117165757.247686-2-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Marc Zyngier 2024-11-17 16:57:54 +00:00 • committed by Greg Kroah-Hartman

parent 10c95568e7

commit 26cd7f91f2

1 changed files with 6 additions and 1 deletions

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arch/arm64/kvm/vgic/vgic-mmio-v3.c

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