KVM: arm64: Disassociate vcpus from redistributor region on teardown

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commit 0d92e4a7ff upstream.

When tearing down a redistributor region, make sure we don't have
any dangling pointer to that region stored in a vcpu.

Fixes: e5a3563546 ("kvm: arm64: vgic-v3: Introduce vgic_v3_free_redist_region()")
Reported-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240605175637.1635653-1-maz@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Marc Zyngier 2024-06-05 18:56:37 +01:00 • committed by Greg Kroah-Hartman

parent 92c77807d9

commit 68df4fc449

3 changed files with 15 additions and 4 deletions

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arch/arm64/kvm/vgic/vgic-init.c

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15

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

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2

arch/arm64/kvm/vgic/vgic.h

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