* [Cluster-devel] [PATCH][GFS2] Bug 586009 - CVE-2010-1436 kernel: oops while cp from ext3 to gfs2 [rhel-6.0]
[not found] <924012423.251581273268920873.JavaMail.root@zmail05.collab.prod.int.phx2.redhat.com>
@ 2010-05-07 21:50 ` Abhijith Das
2010-05-10 12:56 ` Steven Whitehouse
0 siblings, 1 reply; 2+ messages in thread
From: Abhijith Das @ 2010-05-07 21:50 UTC (permalink / raw)
To: cluster-devel.redhat.com
This is the upstream/rhel6 fix for this bug. This patch differs
from the RHEL5 fix (555754) which simply writes to the 8-byte
value field of the quota. In upstream/rhel6 quota code, we're
required to write the entire quota (88 bytes) which can be split
across a page boundary. We check for such quotas, and read/write
the two parts from/to the corresponding pages holding these parts.
With this patch, I don't see the bug anymore using the reproducer
in bz 555754. I successfully ran a couple of simple tests/mounts/
umounts and it doesn't seem like this patch breaks anything else.
Resolves: rhbz#586009
Signed-off-by: Abhi Das <adas@redhat.com>
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^ permalink raw reply [flat|nested] 2+ messages in thread* [Cluster-devel] [PATCH][GFS2] Bug 586009 - CVE-2010-1436 kernel: oops while cp from ext3 to gfs2 [rhel-6.0]
2010-05-07 21:50 ` [Cluster-devel] [PATCH][GFS2] Bug 586009 - CVE-2010-1436 kernel: oops while cp from ext3 to gfs2 [rhel-6.0] Abhijith Das
@ 2010-05-10 12:56 ` Steven Whitehouse
0 siblings, 0 replies; 2+ messages in thread
From: Steven Whitehouse @ 2010-05-10 12:56 UTC (permalink / raw)
To: cluster-devel.redhat.com
Hi,
Now in the -nmw git tree. Thanks,
Steve
On Fri, 2010-05-07 at 17:50 -0400, Abhijith Das wrote:
> This is the upstream/rhel6 fix for this bug. This patch differs
> from the RHEL5 fix (555754) which simply writes to the 8-byte
> value field of the quota. In upstream/rhel6 quota code, we're
> required to write the entire quota (88 bytes) which can be split
> across a page boundary. We check for such quotas, and read/write
> the two parts from/to the corresponding pages holding these parts.
>
> With this patch, I don't see the bug anymore using the reproducer
> in bz 555754. I successfully ran a couple of simple tests/mounts/
> umounts and it doesn't seem like this patch breaks anything else.
>
> Resolves: rhbz#586009
> Signed-off-by: Abhi Das <adas@redhat.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-05-07 21:50 ` [Cluster-devel] [PATCH][GFS2] Bug 586009 - CVE-2010-1436 kernel: oops while cp from ext3 to gfs2 [rhel-6.0] Abhijith Das
2010-05-10 12:56 ` Steven Whitehouse
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