diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index a330a30871c5adf9ba0eb6d14581caa91af61c30..79b4f9ce194f1eb8b56b4369097d6c4256ac8c16 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1914,6 +1914,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
 	rcu_read_lock();
 	if (unlikely(!(tun->dev->flags & IFF_UP))) {
 		err = -EIO;
+		rcu_read_unlock();
 		goto drop;
 	}