From: Eric Sesterhenn <snakebyte@gmx.de>
Date: Wed, 27 Sep 2006 06:26:38 +0000 (-0700)
Subject: [RTNETLINK]: Possible dereference in net/core/rtnetlink.c
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9918f230969bdaf3df012b77abcbcd4cdb0ab221;p=openwrt%2Fstaging%2Fblogic.git

[RTNETLINK]: Possible dereference in net/core/rtnetlink.c

another possible dereference spotted by coverity (#cid 1390).
if the nlmsg_parse() call fails, we goto errout, where we call
dev_put(), with dev still initialized to NULL.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index d8e25e08cb7e..221e4038216b 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -562,7 +562,7 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
 	err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
 	if (err < 0)
-		goto errout;
+		return err;
 
 	ifm = nlmsg_data(nlh);
 	if (ifm->ifi_index >= 0) {