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[NETFILTER]: refcount leak of proto when ctnetlink dumping tuple 

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Yasuyuki Kozakai 2005-11-09 12:58:46 -08:00 committed by David S. Miller
parent 46998f59c0
commit eaae4fa45e
1 changed files with 6 additions and 3 deletions
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9
net/ipv4/netfilter/ip_conntrack_netlink.c
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@ -58,14 +58,17 @@ ctnetlink_dump_tuples_proto(struct sk_buff *skb,
const struct ip_conntrack_tuple *tuple)
{
struct ip_conntrack_protocol *proto;
int ret = 0;
NFA_PUT(skb, CTA_PROTO_NUM, sizeof(u_int8_t), &tuple->dst.protonum);
proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
if (proto && proto->tuple_to_nfattr)
return proto->tuple_to_nfattr(skb, tuple);
if (likely(proto && proto->tuple_to_nfattr)) {
ret = proto->tuple_to_nfattr(skb, tuple);
ip_conntrack_proto_put(proto);
}
return 0;
return ret;
nfattr_failure:
return -1;