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tcp: Fix queue traversal in tcp_use_frto(). 

We must check tcp_skb_is_last() before doing a tcp_write_queue_next().

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-09-23 02:51:41 -07:00
parent 77d40a0952
commit 28e3487b7d
1 changed files with 2 additions and 0 deletions
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2
net/ipv4/tcp_input.c
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@ -1746,6 +1746,8 @@ int tcp_use_frto(struct sock *sk)
return 0;
skb = tcp_write_queue_head(sk);
if (tcp_skb_is_last(sk, skb))
return 1;
skb = tcp_write_queue_next(sk, skb); /* Skips head */
tcp_for_write_queue_from(skb, sk) {
if (skb == tcp_send_head(sk))