CVE-2009-0031 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-0031): Memory leak in the keyctl_join_session_keyring function (security/keys/keyctl.c) in Linux kernel 2.6.29-rc2 and earlier allows local users to cause a denial of service (kernel memory consumption) via unknown vectors related to a "missing kfree."