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authorPablo Neira Ayuso <pablo@netfilter.org>2011-06-02 15:08:45 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2011-06-06 01:37:02 +0200
commit88ed01d17b44bc2bed4ad4835d3b1099bff3dd71 (patch)
tree619e093aecca3e0e1233e7eb62055265c13835e2 /net/ipv4
parentd9be76f38526dccf84062e3ac3ed3a6a97698565 (diff)
downloadlinux-88ed01d17b44bc2bed4ad4835d3b1099bff3dd71.tar.bz2
netfilter: nf_conntrack: fix ct refcount leak in l4proto->error()
This patch fixes a refcount leak of ct objects that may occur if l4proto->error() assigns one conntrack object to one skbuff. In that case, we have to skip further processing in nf_conntrack_in(). With this patch, we can also fix wrong return values (-NF_ACCEPT) for special cases in ICMP[v6] that should not bump the invalid/error statistic counters. Reported-by: Zoltan Menyhart <Zoltan.Menyhart@bull.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/nf_conntrack_proto_icmp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 7404bde95994..ab5b27a2916f 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -160,7 +160,7 @@ icmp_error_message(struct net *net, struct nf_conn *tmpl, struct sk_buff *skb,
/* Update skb to refer to this connection */
skb->nfct = &nf_ct_tuplehash_to_ctrack(h)->ct_general;
skb->nfctinfo = *ctinfo;
- return -NF_ACCEPT;
+ return NF_ACCEPT;
}
/* Small and modified version of icmp_rcv */