fs/splice.c in the splice subsystem in the Linux kernel before 2.6.22.2 does not properly handle a failure of the add_to_page_cache_lru function, and subsequently attempts to unlock a page that was not locked, which allows local users to cause a denial of service (kernel BUG and system crash), as demonstrated by the fio I/O tool.
git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git%3Ba=commit%3Bh=6a860c979b35469e4d77da781a96bdb2ca05ae64
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.2
lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
lkml.org/lkml/2007/7/20/168
secunia.com/advisories/32237
secunia.com/advisories/32485
secunia.com/advisories/32759
www.debian.org/security/2008/dsa-1653
www.juniper.net/security/auto/vulnerabilities/vuln31201.html
www.openwall.com/lists/oss-security/2008/09/16/10
www.redhat.com/support/errata/RHSA-2008-0957.html
www.securityfocus.com/bid/31201
bugzilla.redhat.com/show_bug.cgi?id=462434
exchange.xforce.ibmcloud.com/vulnerabilities/45191
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10547