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| author | Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> | 2006-11-27 10:26:46 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-11-28 20:59:37 -0800 |
| commit | 2e47c264a2e6ea24c27b4987607222202818c1f4 (patch) | |
| tree | 39d4736912e32c11cc08abaef216e30eedfbdfaf | |
| parent | c537b75a3ba9f5d2569f313742cd379dff6ceb70 (diff) | |
| download | linux-2e47c264a2e6ea24c27b4987607222202818c1f4.tar.gz linux-2e47c264a2e6ea24c27b4987607222202818c1f4.tar.bz2 linux-2e47c264a2e6ea24c27b4987607222202818c1f4.zip | |
[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 <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/netfilter/ip_conntrack_core.c | 6 | ||||
| -rw-r--r-- | net/netfilter/nf_conntrack_core.c | 6 |
2 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c index 143c4668538b..8b848aa77bfc 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; diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 0f5830779b44..de0567b1f422 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -469,10 +469,8 @@ __nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple) struct nf_conntrack_expect *i; list_for_each_entry(i, &nf_conntrack_expect_list, list) { - if (nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) { - atomic_inc(&i->use); + if (nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) return i; - } } return NULL; } @@ -485,6 +483,8 @@ nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple) read_lock_bh(&nf_conntrack_lock); i = __nf_conntrack_expect_find(tuple); + if (i) + atomic_inc(&i->use); read_unlock_bh(&nf_conntrack_lock); return i; |