linux-kernel - [PATCH] can: vxcan: Fix memleak in vxcan

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Message-Id: <20201021052150.25914-1-dinghao.liu@zju.edu.cn>
Date:   Wed, 21 Oct 2020 13:21:49 +0800
From:   Dinghao Liu <dinghao.liu@....edu.cn>
To:     dinghao.liu@....edu.cn, kjlu@....edu
Cc:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, linux-can@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] can: vxcan: Fix memleak in vxcan_newlink

When rtnl_configure_link() fails, peer needs to be
freed just like when register_netdevice() fails.

Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
---
 drivers/net/can/vxcan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/can/vxcan.c b/drivers/net/can/vxcan.c
index d6ba9426be4d..aefc5a61d239 100644
--- a/drivers/net/can/vxcan.c
+++ b/drivers/net/can/vxcan.c
@@ -244,6 +244,7 @@ static int vxcan_newlink(struct net *net, struct net_device *dev,
 
 unregister_network_device:
 	unregister_netdevice(peer);
+	free_netdev(peer);
 	return err;
 }
 
-- 
2.17.1