[PATCH 3.11 14/36] ipc,shm: fix shm_file deletion races

3.11-stable review patch. If anyone has any objections, please let me know. -- From: Greg Thelen commit a399b29dfbaaaf91162b2dc5a5875dd51bbfa2a1 upstream. When IPC_RMID races with other shm operations there's potential for use-after-free of the shm object's associated file

[PATCH 3.11 14/36] ipc,shm: fix shm_file deletion races

3.11-stable review patch. If anyone has any objections, please let me know. -- From: Greg Thelen gthe...@google.com commit a399b29dfbaaaf91162b2dc5a5875dd51bbfa2a1 upstream. When IPC_RMID races with other shm operations there's potential for use-after-free of the shm object's