arch/x86/kernel/cpu/perf_event_intel.c in the Linux kernel before 3.8.9, when the Performance Events Subsystem is enabled, specifies an incorrect bitmask, which allows local users to cause a denial of service (general protection fault and system crash) by attempting to set a reserved bit.
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- https://github.com/torvalds/linux/commit/f1923820c447e986a9da0fc6bf60c1dccdf0408e
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