CVE ID:	CVE-2012-1146
Description:	The mem_cgroup_usage_unregister_event function in mm/memcontrol.c in the Linux kernel before 3.2.10 does not properly handle multiple events that are attached to the same eventfd, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by registering memory threshold events.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2012-1146 48898 http://secunia.com/advisories/48898 48964 http://secunia.com/advisories/48964 FEDORA-2012-3712 http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.html SUSE-SU-2012:0554 http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html [oss-security] 20120307 Re: CVE request -- kernel: mm: memcg: unregistring of events attached to the same eventfd can lead to oops http://www.openwall.com/lists/oss-security/2012/03/07/3 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=371528caec553785c37f73fa3926ea0de84f986f http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=371528caec553785c37f73fa3926ea0de84f986f http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10 https://bugzilla.redhat.com/show_bug.cgi?id=800813 https://bugzilla.redhat.com/show_bug.cgi?id=800813 https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986f https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986f kernel-memcg-dos(73711) https://exchange.xforce.ibmcloud.com/vulnerabilities/73711