From af9d32ad6718b9a80fa89f557cc1fbb63a93ec15 Mon Sep 17 00:00:00 2001 From: Holger Eitzenberger Date: Wed, 25 Mar 2009 18:44:01 +0100 Subject: netfilter: limit the length of the helper name This is necessary in order to have an upper bound for Netlink message calculation, which is not a problem at all, as there are no helpers with a longer name. Signed-off-by: Holger Eitzenberger Signed-off-by: Patrick McHardy --- net/netfilter/nf_conntrack_helper.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net') diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c index a51bdac9f3a..805cfdd4230 100644 --- a/net/netfilter/nf_conntrack_helper.c +++ b/net/netfilter/nf_conntrack_helper.c @@ -142,6 +142,7 @@ int nf_conntrack_helper_register(struct nf_conntrack_helper *me) BUG_ON(me->expect_policy == NULL); BUG_ON(me->expect_class_max >= NF_CT_MAX_EXPECT_CLASSES); + BUG_ON(strlen(me->name) > NF_CT_HELPER_NAME_LEN - 1); mutex_lock(&nf_ct_helper_mutex); hlist_add_head_rcu(&me->hnode, &nf_ct_helper_hash[h]); -- cgit v1.2.3