am 06c5ee81: am abf4a566: am d29d22c7: am 555245d7: am 46ef1a9a: am 796fa049: CVE-2013-4254: detect perf_event validate_event bug

* commit '06c5ee811b916a29a314247c416628811ba04732':
  CVE-2013-4254: detect perf_event validate_event bug