kernel is vulnerable to denial of service (DoS). The vulnerability exists as a NULL pointer dereference flaw in the NFSv4 implementation. Several NFSv4 file locking functions failed to check whether a file had been opened on the server before performing locking operations on it.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d953126a28f97ec965d23c69fd5795854c048f30
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d953126a28f97ec965d23c69fd5795854c048f30
kbase.redhat.com/faq/docs/DOC-20536
lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
lists.vmware.com/pipermail/security-announce/2010/000082.html
secunia.com/advisories/37909
secunia.com/advisories/38794
secunia.com/advisories/38834
secunia.com/advisories/40218
www.debian.org/security/2010/dsa-2005
www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.31/ChangeLog-2.6.31-rc4
www.mandriva.com/security/advisories?name=MDVSA-2009:329
www.mandriva.com/security/advisories?name=MDVSA-2011:051
www.openwall.com/lists/oss-security/2009/11/05/1
www.openwall.com/lists/oss-security/2009/11/05/4
www.redhat.com/security/updates/classification/#important
www.redhat.com/support/errata/RHSA-2009-1670.html
www.redhat.com/support/errata/RHSA-2010-0474.html
www.securityfocus.com/bid/36936
www.spinics.net/linux/lists/linux-nfs/msg03357.html
www.ubuntu.com/usn/usn-864-1
www.vupen.com/english/advisories/2010/0528
access.redhat.com/errata/RHSA-2009:1635
access.redhat.com/errata/RHSA-2009:1670
access.redhat.com/errata/RHSA-2010:0474
access.redhat.com/security/cve/CVE-2009-3726
bugzilla.redhat.com/show_bug.cgi?id=529227
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6636
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9734