ipv4: fix ip_send_skb()

ip_send_skb() can send orphaned skb, so we must pass the net pointer to
avoid possible NULL dereference in error path.

Bug added by commit 3a7c384ffd57 (ipv4: tcp: unicast_sock should not
land outside of TCP stack)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/ip.h b/include/net/ip.h
index bd5e444a19ce..5a5d84d3d2c6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -120,7 +120,7 @@ extern struct sk_buff  *__ip_make_skb(struct sock *sk,
                                       struct flowi4 *fl4,
                                       struct sk_buff_head *queue,
                                       struct inet_cork *cork);
-extern int              ip_send_skb(struct sk_buff *skb);
+extern int              ip_send_skb(struct net *net, struct sk_buff *skb);
 extern int              ip_push_pending_frames(struct sock *sk, struct flowi4 *fl4);
 extern void             ip_flush_pending_frames(struct sock *sk);
 extern struct sk_buff  *ip_make_skb(struct sock *sk,