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Date: Thu, 14 Dec 2017 22:16:06 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Christoffer Dall <christoffer.dall@linaro.org>
Cc: stable@vger.kernel.org, Marc Zyngier <marc.zyngier@arm.com>
Subject: Re: [PATCH v4.14 backport] KVM: arm/arm64: vgic-its: Preserve the
 revious read from the pending table
Message-ID: <20171214211606.GA15587@kroah.com>
References: <20171214210424.25740-4-christoffer.dall@linaro.org>
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On Thu, Dec 14, 2017 at 10:04:24PM +0100, Christoffer Dall wrote:
> From: Marc Zyngier <marc.zyngier@arm.com>
> 
> 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@vger.kernel.org> # 4.8
> Reported-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
> ---
>  virt/kvm/arm/vgic/vgic-its.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Now applied, thanks.

greg k-h