A flaw was found in the way the xfs_da3_fixhashpath() function of the Linux kernel's XFS file system implementation ordered directory hashes under certain conditions. A local attacker could use this flaw to corrupt the file system by creating directories, potentially resulting in kernel panic.
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 and 7.
This issue has been addressed in the following products:
MRG for RHEL-6 v.2
Via RHSA-2014:1943 https://rhn.redhat.com/errata/RHSA-2014-1943.html