The rds_page_copy_user function in net/rds/page.c in the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel before 2.6.36 does not properly validate addresses obtained from user space, which allows local users to gain privileges via crafted use of the sendmsg and recvmsg system calls.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=799c10559d60f159ab2232203f222f18fa3c4a5f
lists.opensuse.org/opensuse-security-announce/2010-10/msg00008.html
lists.opensuse.org/opensuse-security-announce/2010-11/msg00004.html
lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
packetstormsecurity.com/files/155751/vReliable-Datagram-Sockets-RDS-rds_page_copy_user-Privilege-Escalation.html
secunia.com/advisories/46397
securitytracker.com/id?1024613
www.kb.cert.org/vuls/id/362983
www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
www.redhat.com/support/errata/RHSA-2010-0792.html
www.redhat.com/support/errata/RHSA-2010-0842.html
www.securityfocus.com/archive/1/520102/100/0/threaded
www.ubuntu.com/usn/USN-1000-1
www.vmware.com/security/advisories/VMSA-2011-0012.html
www.vsecurity.com/download/tools/linux-rds-exploit.c
www.vsecurity.com/resources/advisory/20101019-1/
www.vupen.com/english/advisories/2011/0298
bugzilla.redhat.com/show_bug.cgi?id=642896
www.exploit-db.com/exploits/44677/