netdev - [PATCH 7/7] dcb: Add missing error check in dcb_ieee

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Message-ID: <20110617211645.26578.49949.stgit@jf-dev1-dcblab>
Date:	Fri, 17 Jun 2011 14:16:45 -0700
From:	John Fastabend <john.r.fastabend@...el.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, shmulikr@...adcom.com
Subject: [PATCH 7/7] dcb: Add missing error check in dcb_ieee_set()

Missing error checking before nla_parse_nested().

Reported-by: Mark Rustad <mark.d.rustad@...el.com>
Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
---

 net/dcb/dcbnl.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 28fc386..e48879f 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1367,6 +1367,9 @@ 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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