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ipv4: fix ip_send_skb()

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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 3a7c384ffd (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>
This commit is contained in:
Eric Dumazet 2012-08-10 02:22:47 +00:00 • committed by David S. Miller
parent 63d02d157e
commit b5ec8eeac4
3 changed files with 4 additions and 5 deletions
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2
include/net/ip.h
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@ -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,