This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 as they did not include the upstream commit 84afd99b that introduced this issue. Future kernel updates for Red Hat Enterprise Linux 6 may address this issue.
This has been addressed in Red Hat Enterprise Linux Red Hat Enterprise MRG 2 via https://rhn.redhat.com/errata/RHSA-2012-1150.html
CVSS v2 metrics
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat Security Errata
|MRG Grid for RHEL 6 Server v.2 (kernel-rt)||RHSA-2012:1150||2012-08-08|
|Red Hat Enterprise Linux 6 (kernel)||RHSA-2012:1304||2012-09-25|
Affected Packages State
|Red Hat Enterprise MRG 2||realtime-kernel||Affected|
|Red Hat Enterprise Linux 5||kernel||Not affected|