The tcf_act_police_dump function in net/sched/act_police.c in the actions implementation in the network queueing functionality in the Linux kernel before 2.6.36-rc4 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel memory via vectors involving a dump operation. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-2942.
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
http://www.ubuntu.com/usn/USN-1000-1
http://www.securitytracker.com/id?1024603
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2011-0007.html
http://www.redhat.com/support/errata/RHSA-2010-0839.html
http://www.redhat.com/support/errata/RHSA-2010-0779.html
http://www.debian.org/security/2010/dsa-2126
http://secunia.com/advisories/46397