Linux kernel before 2.6.15 allows local users to cause a denial of service (panic) via a set_mempolicy call with a 0 bitmask, which causes a panic when a page fault occurs.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10410
http://www.vupen.com/english/advisories/2006/0035
http://www.securityfocus.com/bid/16135
http://www.securityfocus.com/archive/1/427981/100/0/threaded
http://www.securityfocus.com/archive/1/427980/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2006-0101.html
http://www.novell.com/linux/security/advisories/2006_06_kernel.html
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.15
http://www.debian.org/security/2006/dsa-1017
http://securitytracker.com/id?1015433
http://secunia.com/advisories/19374
http://secunia.com/advisories/19038
http://secunia.com/advisories/18788
http://secunia.com/advisories/18510
http://secunia.com/advisories/18216
http://lists.suse.de/archive/suse-security-announce/2006-Feb/0010.html
http://linux.bkbits.net:8080/linux-2.6/cset%4042307e9fp8ihEMrfaoPMp_agDevQNA