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ipv6: Don't pass invalid dst_entry pointer to dst_release().

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Make sure dst_release() is not called with error pointer. This is
similar to commit 4910ac6c52 ("ipv4:
Don't ip_rt_put() an error pointer in RAW sockets.").

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Boris Ostrovsky 2011-04-04 13:07:26 -07:00 committed by David S. Miller
parent a14b289d46
commit 738faca343
1 changed files with 1 additions and 0 deletions
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1
net/ipv6/tcp_ipv6.c
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@ -503,6 +503,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
dst = NULL;
goto done;
}
skb = tcp_make_synack(sk, dst, req, rvp);