linux-kernel - Re: net: lapbether: fix double free

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Date:   Wed, 01 Nov 2017 12:11:44 +0900 (KST)
From:   David Miller <davem@...emloft.net>
To:     bianpan2016@....com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: net: lapbether: fix double free

From: Pan Bian <bianpan2016@....com>
Date: Sun, 29 Oct 2017 21:57:22 +0800

> The function netdev_priv() returns the private data of the device. The
> memory to store the private data is allocated in alloc_netdev() and is
> released in netdev_free(). Calling kfree() on the return value of
> netdev_priv() after netdev_free() results in a double free bug.
> 
> Signed-off-by: Pan Bian <bianpan2016@....com>

Applied.