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From: Alexander Graf <agraf@suse.de>
To: Ben Collins <bcollins@ubuntu.com>
Cc: kvm-ppc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: check error return of kvmppc_core_vcpu_create first
Date: Mon, 05 Mar 2012 18:10:59 +0000	[thread overview]
Message-ID: <4F5501B3.6050601@suse.de> (raw)
In-Reply-To: <50A8F108-8055-4115-B4EB-706D97736E65@ubuntu.com>

On 02/21/2012 05:30 AM, Ben Collins wrote:
> The result of kvmppc_core_vcpu_create() was being manipulated before it was checked for IS_ERR(). Did not see the bug occur, but caught it when looking through the code.

Nice catch, but this has already been fixed by Matt:

commit c6f3830e7313eea47b526b597aadc5b18c69ad55
Author: Matt Evans <matt@ozlabs.org>
Date:   Tue Dec 6 21:19:42 2011 +0000

     KVM: PPC: Fix vcpu_create dereference before validity check.

     Fix usage of vcpu struct before check that it's actually valid.

     Signed-off-by: Matt Evans <matt@ozlabs.org>
     Signed-off-by: Alexander Graf <agraf@suse.de>


Thanks a lot for sending the patch nevertheless!

Alex


WARNING: multiple messages have this Message-ID (diff)
From: Alexander Graf <agraf@suse.de>
To: Ben Collins <bcollins@ubuntu.com>
Cc: kvm-ppc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: check error return of kvmppc_core_vcpu_create first
Date: Mon, 05 Mar 2012 19:10:59 +0100	[thread overview]
Message-ID: <4F5501B3.6050601@suse.de> (raw)
In-Reply-To: <50A8F108-8055-4115-B4EB-706D97736E65@ubuntu.com>

On 02/21/2012 05:30 AM, Ben Collins wrote:
> The result of kvmppc_core_vcpu_create() was being manipulated before it was checked for IS_ERR(). Did not see the bug occur, but caught it when looking through the code.

Nice catch, but this has already been fixed by Matt:

commit c6f3830e7313eea47b526b597aadc5b18c69ad55
Author: Matt Evans <matt@ozlabs.org>
Date:   Tue Dec 6 21:19:42 2011 +0000

     KVM: PPC: Fix vcpu_create dereference before validity check.

     Fix usage of vcpu struct before check that it's actually valid.

     Signed-off-by: Matt Evans <matt@ozlabs.org>
     Signed-off-by: Alexander Graf <agraf@suse.de>


Thanks a lot for sending the patch nevertheless!

Alex


  reply	other threads:[~2012-03-05 18:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-21  4:30 [PATCH] KVM: PPC: check error return of kvmppc_core_vcpu_create first Ben Collins
2012-02-21  4:30 ` Ben Collins
2012-03-05 18:10 ` Alexander Graf [this message]
2012-03-05 18:10   ` Alexander Graf

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