CVE ID:	CVE-2012-6647
Description:	The futex_wait_requeue_pi function in kernel/futex.c in the Linux kernel before 3.5.1 does not ensure that calls have two different futex addresses, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted FUTEX_WAIT_REQUEUE_PI command.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2012-6647 [oss-security] 20140514 Re: CVE request Linux kernel: forbid uaddr == uaddr2 in futex_wait_requeue_pi() to avoid null dereference http://www.openwall.com/lists/oss-security/2014/05/14/9 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6f7b0a2a5c0fb03be7c25bd1745baa50582348ef http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6f7b0a2a5c0fb03be7c25bd1745baa50582348ef http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.1 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.1 https://bugzilla.redhat.com/show_bug.cgi?id=1097746 https://bugzilla.redhat.com/show_bug.cgi?id=1097746 https://github.com/torvalds/linux/commit/6f7b0a2a5c0fb03be7c25bd1745baa50582348ef https://github.com/torvalds/linux/commit/6f7b0a2a5c0fb03be7c25bd1745baa50582348ef