diff --git a/Makefile b/Makefile
index 3b1845f2b8f8..d6db01a02252 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 14
-SUBLEVEL = 46
+SUBLEVEL = 47
 EXTRAVERSION =
 NAME = Petit Gorille
 
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 5c5699c08575..00d4371d4573 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -396,6 +396,7 @@ static int vti_tunnel_init(struct net_device *dev)
 	memcpy(dev->dev_addr, &iph->saddr, 4);
 	memcpy(dev->broadcast, &iph->daddr, 4);
 
+	dev->mtu		= ETH_DATA_LEN;
 	dev->flags		= IFF_NOARP;
 	dev->addr_len		= 4;
 	dev->features		|= NETIF_F_LLTX;