CVE-2009-1336 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-1336): fs/nfs/client.c in the Linux kernel before 2.6.23 does not properly initialize a certain structure member that stores the maximum NFS filename length, which allows local users to cause a denial of service (OOPS) via a long filename, related to the encode_lookup function.