kernel is vulnerable to privilege escalation. The vulnerability exists through a flaw in the link_path_walk() function. Using the file descriptor returned by open() with the O_NOFOLLOW flag on a subordinate NFS-mounted file system, could result in a NULL pointer dereference, causing a denial of service or privilege escalation.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ac278a9c505092dd82077a2446af8f9fc0d9c095
lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html
secunia.com/advisories/39742
secunia.com/advisories/39830
secunia.com/advisories/43315
www.debian.org/security/2010/dsa-2053
www.mandriva.com/security/advisories?name=MDVSA-2010:088
www.mandriva.com/security/advisories?name=MDVSA-2010:198
www.novell.com/linux/security/advisories/2010_23_kernel.html
www.openwall.com/lists/oss-security/2010/02/24/3
www.redhat.com/docs/en-US/errata/RHSA-2010-0631/Kernel_Security_Update/index.html
www.redhat.com/security/updates/classification/#important
www.securityfocus.com/archive/1/516397/100/0/threaded
www.securityfocus.com/bid/39044
www.vmware.com/security/advisories/VMSA-2011-0003.html
access.redhat.com/errata/RHSA-2010:0631
access.redhat.com/kb/docs/DOC-31052
bugzilla.redhat.com/show_bug.cgi?id=567813
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10093