Race condition in the IP implementation in the Linux kernel before 3.0 might allow remote attackers to cause a denial of service (slab corruption and system crash) by sending packets to an application that sets socket options during the handling of network traffic.
https://github.com/torvalds/linux/commit/f6d8bd051c391c1c0458a30b2a7abcd939329259
https://bugzilla.redhat.com/show_bug.cgi?id=853465
http://www.openwall.com/lists/oss-security/2012/08/31/11