From edc34643c2d2046163482f792dd1085dccf70780 Mon Sep 17 00:00:00 2001
From: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Date: Wed, 7 Mar 2007 22:34:36 +0100
Subject: [PATCH] nfnetlink_log: fix possible NULL pointer dereference

[NETFILTER]: nfnetlink_log: fix possible NULL pointer dereference

Eliminate possible NULL pointer dereference in nfulnl_recv_config().

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 net/netfilter/nfnetlink_log.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 0b870d6df100..5c2980d07b7f 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -867,6 +867,9 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
 			ret = -EINVAL;
 			break;
 		}
+
+		if (!inst)
+			goto out;
 	} else {
 		if (!inst) {
 			UDEBUG("no config command, and no instance for "
@@ -920,6 +923,7 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
 
 out_put:
 	instance_put(inst);
+out:
 	return ret;
 }
 
-- 
2.39.5