The kernel in Apple OS X before 10.10 allows local users to cause a denial of service (panic) via a message to a system control socket.
https://support.apple.com/kb/HT6535
https://exchange.xforce.ibmcloud.com/vulnerabilities/97632
http://www.securitytracker.com/id/1031063
http://www.securityfocus.com/bid/70624
http://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html