From 5adbb9fb0c35c38022f79e09fecf15ba8f65f069 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Sun, 22 Aug 2010 21:37:51 +0900
Subject: [PATCH] netfilter: nf_conntrack_sip: Allow ct_sip_get_header() to be
 called with a null ct argument

Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Julian Anastasov <ja@ssi.bg>
---
 net/netfilter/nf_conntrack_sip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index 53d892210a04..2fd1ea2c1bb3 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -152,6 +152,9 @@ static int parse_addr(const struct nf_conn *ct, const char *cp,
 	const char *end;
 	int ret = 0;
 
+	if (!ct)
+		return 0;
+
 	memset(addr, 0, sizeof(*addr));
 	switch (nf_ct_l3num(ct)) {
 	case AF_INET:
-- 
2.39.5