CVE-2009-4141 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4141): Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.
whoops *** This bug has been marked as a duplicate of bug 301006 ***