CVE-2011-4611 - Strawlike Tonguethrust

Description

Integer overflow in the perf_event_interrupt function in arch/powerpc/kernel/perf_event.c in the Linux kernel before 2.6.39 on powerpc platforms allows local users to cause a denial of service (unhandled performance monitor exception) via vectors that trigger certain outcomes of performance events.

Reference

https://github.com/torvalds/linux/commit/0837e3242c73566fc1c0196b4ec61779c25ffc93 http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 https://bugzilla.redhat.com/show_bug.cgi?id=767914 http://www.openwall.com/lists/oss-security/2011/12/15/2 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0837e3242c73566fc1c0196b4ec61779c25ffc93