IBM AIX 5.3, 6.1, 7.1, and 7.2 contains a vulnerability in the rmsock command that may be used to expose kernel memory. IBM X-Force ID: 144748.
https://exchange.xforce.ibmcloud.com/vulnerabilities/144748
http://www.securitytracker.com/id/1041166
http://www.securityfocus.com/bid/104542
http://aix.software.ibm.com/aix/efixes/security/rmsock_advisory2.asc