drivers/media/video/videobuf-vmalloc.c in the Linux kernel before 2.6.24 does not initialize videobuf_mapping data structures, which allows local users to trigger an incorrect count value and videobuf leak via unspecified vectors, a different vulnerability than CVE-2010-5321.
https://github.com/torvalds/linux/commit/0b29669c065f60501e7289e1950fa2a618962358
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=827340
http://www.securityfocus.com/bid/98001
http://www.linuxgrill.com/anonymous/kernel/v2.6/ChangeLog-2.6.24