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From: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Date: Sun, 4 Mar 2007 23:59:20 +0000 (-0800)
Subject: [NETFILTER]: nfnetlink_log: fix possible NULL pointer dereference
X-Git-Tag: v2.6.21~469^2~10
X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=dd16704eba171b32ef0cded3a4f562b33b911066
[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>
---
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 1b94051..b669db5 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;
}
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