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Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type


From: Eugene Teo <eugene () redhat com>
Date: Tue, 22 Nov 2011 10:49:16 +0800

On 11/22/2011 05:26 AM, Kurt Seifried wrote:
On 11/21/2011 10:51 AM, Petr Matousek wrote:
There is a NULL pointer deref in the user-defined key type whereby
updating a negative key into a fully instantiated key will cause
an oops to occur when the code attempts to free the non-existent
old payload.

Upstream commit:
9f35a33b8d06263a165efe3541d9aa0cdbd70b3b

References:
https://lkml.org/lkml/2011/11/15/363
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4110

Thanks,
Please use CVE-2011-4331 for this issue.

Kurt, we have assigned this with CVE-2011-4110, please reject
CVE-2011-4331. Thanks.

Eugene


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