diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index f0db770e8b2f9655be8d3c3000a9395f945284e2..88bb8cc3555b8c8197d7993a2a9c338ddab8e8b1 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1095,6 +1095,9 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
 	u32 rxhash;
 	ssize_t n;
 
+	if (!(tun->dev->flags & IFF_UP))
+		return -EIO;
+
 	if (!(tun->flags & IFF_NO_PI)) {
 		if (len < sizeof(pi))
 			return -EINVAL;