From dd16704eba171b32ef0cded3a4f562b33b911066 Mon Sep 17 00:00:00 2001
From: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Date: Sun, 4 Mar 2007 15:59:20 -0800
Subject: [PATCH] [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: David S. Miller <davem@davemloft.net>
---
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 1b940512d87b..b669db564695 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -858,6 +858,9 @@ 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 "
@@ -911,6 +914,7 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
out_put:
instance_put(inst);
+out:
return ret;
}