include/asm-x86/futex.h in the Linux kernel before 2.6.25 does not properly implement exception fixup, which allows local users to cause a denial of service (panic) via an invalid application that triggers a page fault.
https://bugzilla.redhat.com/show_bug.cgi?id=429412
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2010-0839.html
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25
http://securitytracker.com/id?1024709
http://secunia.com/advisories/46397
http://marc.info/?l=oss-security&m=128935856605589&w=2
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html
http://kerneltrap.org/mailarchive/linux-kernel/2008/2/6/752194/thread