netdev - Re: [PATCH net-next v2] macvtap: add namespace support to the sysfs device class

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Message-Id: <20160504.160445.640444073175153113.davem@davemloft.net>
Date:	Wed, 04 May 2016 16:04:45 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	marc@...sta.com
Cc:	netdev@...r.kernel.org, ebiederm@...ssion.com
Subject: Re: [PATCH net-next v2] macvtap: add namespace support to the
 sysfs device class

From: Marc Angel <marc@...sta.com>
Date: Tue,  3 May 2016 20:30:54 +0200

> @@ -1274,6 +1285,7 @@ static int macvtap_device_event(struct notifier_block *unused,
>  				unsigned long event, void *ptr)
>  {
>  	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
> +	const char *tap_name = kasprintf(GFP_KERNEL, "tap%d", dev->ifindex);
>  	struct macvlan_dev *vlan;
>  	struct device *classdev;
>  	dev_t devt;

This 'tap_name' buffer seems to be leaked in several code paths.