From 4003b65871c101eb5ce8f37a325feac54aa5c681 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.r.fastabend@intel.com>
Date: Tue, 21 Jun 2011 07:35:04 +0000
Subject: dcb: Add missing error check in dcb_ieee_set()

Missing error checking before nla_parse_nested().

Reported-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/dcb/dcbnl.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'net/dcb')

diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index f54c784e2b5..e954d4c6590 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1368,6 +1368,9 @@ static int dcbnl_ieee_set(struct net_device *netdev, struct nlattr **tb,
 	if (!ops)
 		return err;
 
+	if (!tb[DCB_ATTR_IEEE])
+		return -EINVAL;
+
 	err = nla_parse_nested(ieee, DCB_ATTR_IEEE_MAX,
 			       tb[DCB_ATTR_IEEE], dcbnl_ieee_policy);
 	if (err)
-- 
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