lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20110928220143.896513864@clark.kroah.org>
Date:	Wed, 28 Sep 2011 15:02:20 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Eric Dumazet <eric.dumazet@...il.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [176/244] bridge: fix a possible net_device leak

3.0-stable review patch.  If anyone has any objections, please let us know.

------------------


From: Eric Dumazet <eric.dumazet@...il.com>

[ Upstream commit 11f3a6bdc2528d1ce2af50202dbf7138fdee1b34 ]

Jan Beulich reported a possible net_device leak in bridge code after
commit bb900b27a2f4 (bridge: allow creating bridge devices with netlink)

Reported-by: Jan Beulich <JBeulich@...ell.com>
Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
Acked-by: Stephen Hemminger <shemminger@...tta.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 net/bridge/br_if.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -231,6 +231,7 @@ static struct net_bridge_port *new_nbp(s
 int br_add_bridge(struct net *net, const char *name)
 {
 	struct net_device *dev;
+	int res;
 
 	dev = alloc_netdev(sizeof(struct net_bridge), name,
 			   br_dev_setup);
@@ -240,7 +241,10 @@ int br_add_bridge(struct net *net, const
 
 	dev_net_set(dev, net);
 
-	return register_netdev(dev);
+	res = register_netdev(dev);
+	if (res)
+		free_netdev(dev);
+	return res;
 }
 
 int br_del_bridge(struct net *net, const char *name)


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ