kernel is vulnerable to denial of service. A local, unprivileged user could use flaws in the XFS file system implementation to cause a denial of service or escalate their privileges by mounting a specially-crafted disk.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=093019cf1b18dd31b2c3b77acce4e000e2cbc9ce
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fa8b18edd752a8b4e9d1ee2cd615b82c93cf8bba
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=093019cf1b18dd31b2c3b77acce4e000e2cbc9ce
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fa8b18edd752a8b4e9d1ee2cd615b82c93cf8bba
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.9
www.openwall.com/lists/oss-security/2012/01/10/11
access.redhat.com/errata/RHSA-2012:0333
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=773280
github.com/torvalds/linux/commit/093019cf1b18dd31b2c3b77acce4e000e2cbc9ce
github.com/torvalds/linux/commit/fa8b18edd752a8b4e9d1ee2cd615b82c93cf8bba