Memory leak in mm/hugetlb.c in the Linux kernel before 3.4.2 allows local users to cause a denial of service (memory consumption or system crash) via invalid MAP_HUGETLB mmap operations.
https://bugzilla.redhat.com/show_bug.cgi?id=824345
https://github.com/torvalds/linux/commit/c50ac050811d6485616a193eb0f37bfbd191cc89
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.2
http://www.openwall.com/lists/oss-security/2012/05/23/14