From 2e47c264a2e6ea24c27b4987607222202818c1f4 Mon Sep 17 00:00:00 2001 From: Yasuyuki Kozakai Date: Mon, 27 Nov 2006 10:26:46 -0800 Subject: [NETFILTER]: conntrack: fix refcount leak when finding expectation All users of __{ip,nf}_conntrack_expect_find() don't expect that it increments the reference count of expectation. Signed-off-by: Yasuyuki Kozakai Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv4/netfilter/ip_conntrack_core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/ipv4') diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c index 143c4668538..8b848aa77bf 100644 --- a/net/ipv4/netfilter/ip_conntrack_core.c +++ b/net/ipv4/netfilter/ip_conntrack_core.c @@ -225,10 +225,8 @@ __ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple) struct ip_conntrack_expect *i; list_for_each_entry(i, &ip_conntrack_expect_list, list) { - if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) { - atomic_inc(&i->use); + if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) return i; - } } return NULL; } @@ -241,6 +239,8 @@ ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple) read_lock_bh(&ip_conntrack_lock); i = __ip_conntrack_expect_find(tuple); + if (i) + atomic_inc(&i->use); read_unlock_bh(&ip_conntrack_lock); return i; -- cgit v1.2.3