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netfilter: conntrack: don't deliver events for racy packets

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This patch skips the delivery of conntrack events if the packet
was drop due to a race condition in the conntrack insertion.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Pablo Neira Ayuso 2009-03-16 15:06:42 +01:00 committed by Patrick McHardy
parent 325fb5b4d2
commit b1e93a68ca
1 changed files with 2 additions and 1 deletions
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3
include/net/netfilter/nf_conntrack_core.h
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@ -62,7 +62,8 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
if (ct && ct != &nf_conntrack_untracked) {
if (!nf_ct_is_confirmed(ct) && !nf_ct_is_dying(ct))
ret = __nf_conntrack_confirm(skb);
nf_ct_deliver_cached_events(ct);
if (likely(ret == NF_ACCEPT))
nf_ct_deliver_cached_events(ct);
}
return ret;
}