Holding tasklist_lock is no longer sufficient for find_task_by_vpid().
Explicit rcu_read_lock() is required.
Signed-off-by: NTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
--
 security/tomoyo/common.c |    4 ++++
 1 file changed, 4 insertions(+)
Signed-off-by: NJames Morris <jmorris@namei.org>