diff --git a/fs/nsfs.c b/fs/nsfs.c
index a4a925dce331..e228d06f0949 100644
--- a/fs/nsfs.c
+++ b/fs/nsfs.c
@@ -188,8 +188,10 @@ static long ns_ioctl(struct file *filp, unsigned int ioctl,
 			tsk = find_task_by_vpid(arg);
 		else
 			tsk = find_task_by_pid_ns(arg, pid_ns);
-		if (!tsk)
+		if (!tsk) {
+			rcu_read_unlock();
 			break;
+		}
 
 		switch (ioctl) {
 		case NS_GET_PID_FROM_PIDNS: