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Date: Thu, 14 Dec 2017 22:29:25 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Stable <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: <20171214212925.GD27981@kroah.com>
References: <20171212164232.2908-1-christoffer.dall@linaro.org>
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 <20171214204831.GA32502@kroah.com>
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On Thu, Dec 14, 2017 at 09:57:54PM +0100, Christoffer Dall wrote:
> On Thu, Dec 14, 2017 at 9:48 PM, Greg KH <gregkh@linuxfoundation.org> wrote:
> > On Thu, Dec 14, 2017 at 09:40:27PM +0100, Greg KH wrote:
> >> On Tue, Dec 12, 2017 at 05:42:31PM +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(-)
> >>
> >> All 4 backports queued up, many thanks for them.
> >
> > Hm, no, I messed up.  I'm totally confused by the emails you sent and
> > the "drop this" and "this is real" :)
> >
> 
> Yeah, I had a bad day. Sorry about the confusion.
> 
> > Can you resend just the patches you want applied?
> >
> 
> Yes, all four incoming now.

Thanks, I should have this all now queued up properly, thanks for the
resend.

greg k-h