On Tue, Dec 12, 2017 at 05:42:31PM +0100, Christoffer Dall wrote:
> From: Marc Zyngier <marc.zyngier@xxxxxxx>
>
> Commit 64afe6e9eb4841f35317da4393de21a047a883b3 upstream.
>
> The current pending table parsing code assumes that we keep the
> previous read of the pending bits, but keep that variable in
> the current block, making sure it is discarded on each loop.
>
> We end-up using whatever is on the stack. Who knows, it might
> just be the right thing...
>
> Fixes: 33d3bc9556a7d ("KVM: arm64: vgic-its: Read initial LPI pending table")
> Cc: <stable@xxxxxxxxxxxxxxx> # 4.8
> Reported-by: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
> Reviewed-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
> Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
> ---
> virt/kvm/arm/vgic/vgic-its.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
All 4 backports queued up, many thanks for them.
greg k-h