CVE-2012-3511 Information

Description

Multiple race conditions in the madvise_remove function in mm/madvise.c in the Linux kernel before 3.4.5 allow local users to cause a denial of service (use-after-free and system crash) via vectors involving a (1) munmap or (2) close system call.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb http://secunia.com/advisories/50633 http://secunia.com/advisories/50732 http://secunia.com/advisories/55055 http://ubuntu.com/usn/usn-1529-1 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5 http://www.openwall.com/lists/oss-security/2012/08/20/13 http://www.securityfocus.com/bid/55151 http://www.ubuntu.com/usn/USN-1567-1 http://www.ubuntu.com/usn/USN-1572-1 http://www.ubuntu.com/usn/USN-1577-1 https://bugzilla.redhat.com/show_bug.cgi?id=849734 https://github.com/torvalds/linux/commit/9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb