xfs directory hash ordering bug

Another kernel bug which did not get a CVE yet, but should be considered
to get one (sorry for the late notification):

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c88547a8119e3b581318ab65e9b72f27f23e641d

Basically it allows a local user to corrupt a xfs filesystem by just
creating directories.

more here...........http://permalink.gmane.org/gmane.comp.security.oss.general/14116