Unspecified vulnerability in Oracle Solaris 10 and 11 Express allows local users to affect availability via unknown vectors related to Kernel/Performance Counter BackEnd Module (pcbe).
https://exchange.xforce.ibmcloud.com/vulnerabilities/70814
http://www.securityfocus.com/bid/50244
http://www.oracle.com/technetwork/topics/security/cpuoct2011-330135.html