openvswitch: Fix vport_send double free

[cascardo/linux.git] / net / ipv4 / geneve.c

diff --git a/net/ipv4/geneve.c b/net/ipv4/geneve.c
index 95e47c9..394a200 100644 (file)
--- a/net/ipv4/geneve.c
+++ b/net/ipv4/geneve.c
@@ -122,14 +122,18 @@ int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
        int err;
 
        skb = udp_tunnel_handle_offloads(skb, !gs->sock->sk->sk_no_check_tx);
+       if (IS_ERR(skb))
+               return PTR_ERR(skb);
 
        min_headroom = LL_RESERVED_SPACE(rt->dst.dev) + rt->dst.header_len
                        + GENEVE_BASE_HLEN + opt_len + sizeof(struct iphdr)
                        + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0);
 
        err = skb_cow_head(skb, min_headroom);
-       if (unlikely(err))
+       if (unlikely(err)) {
+               kfree_skb(skb);
                return err;
+       }
 
        skb = vlan_hwaccel_push_inside(skb);
        if (unlikely(!skb))