mlxsw: core: Fix use-after-free when flashing firmware during init

[linux.git] / drivers / net / vxlan.c

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 2b8da2b7e721e33f0683efa61e50ceac68d256e7..27bd586b94b0a01f1f99e0c01d8df85c1757b960 100644 (file)
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2194,11 +2194,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
                }
 
                ndst = &rt->dst;
-               if (skb_dst(skb)) {
-                       int mtu = dst_mtu(ndst) - VXLAN_HEADROOM;
-
-                       skb_dst_update_pmtu(skb, mtu);
-               }
+               skb_tunnel_check_pmtu(skb, ndst, VXLAN_HEADROOM);
 
                tos = ip_tunnel_ecn_encap(tos, old_iph, skb);
                ttl = ttl ? : ip4_dst_hoplimit(&rt->dst);
@@ -2235,11 +2231,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
                                goto out_unlock;
                }
 
-               if (skb_dst(skb)) {
-                       int mtu = dst_mtu(ndst) - VXLAN6_HEADROOM;
-
-                       skb_dst_update_pmtu(skb, mtu);
-               }
+               skb_tunnel_check_pmtu(skb, ndst, VXLAN6_HEADROOM);
 
                tos = ip_tunnel_ecn_encap(tos, old_iph, skb);
                ttl = ttl ? : ip6_dst_hoplimit(ndst);