linux-kernel - Re: [PATCH] MIPS: KVM: do not sign extend on unsigned MMIO load

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Date:	Wed, 10 Jun 2015 14:57:02 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	James Hogan <james.hogan@...tec.com>,
	stable <stable@...r.kernel.org>
CC:	Nicholas Mc Guire <hofrat@...dl.org>,
	Gleb Natapov <gleb@...nel.org>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Ralf Baechle <ralf@...ux-mips.org>, kvm@...r.kernel.org,
	linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] MIPS: KVM: do not sign extend on unsigned MMIO load

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On 06/08/2015, 10:33 AM, James Hogan wrote:
> Hi stable folk,
> 
> On 08/05/15 15:16, James Hogan wrote:
>> On 07/05/15 13:47, Nicholas Mc Guire wrote:
>>> Fix possible unintended sign extension in unsigned MMIO loads
>>> by casting to uint16_t in the case of mmio_needed != 2.
>>> 
>>> Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
>> 
>> Looks good to me. I wrote an MMIO test to reproduce the issue,
>> and this fixes it.
>> 
>> Reviewed-by: James Hogan <james.hogan@...tec.com> Tested-by:
>> James Hogan <james.hogan@...tec.com>
>> 
>> It looks suitable for stable too (3.10+).
> 
> This has reached mainline, commit
> ed9244e6c534612d2b5ae47feab2f55a0d4b4ced
> 
> Please could it be added to stable (3.10+).

Applied to 3.12. Thanks.

- -- 
js
suse labs
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