diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 76dd8580e287..044d5c3a4d04 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1915,6 +1915,7 @@ 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;
 	}