netdev - Re: [PATCH stable 3.11+] can: bcm: add skb destructor

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Message-Id: <20140128.234630.1768378245126172951.davem@davemloft.net>
Date:	Tue, 28 Jan 2014 23:46:30 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	nautsch2@...il.com
Cc:	eric.dumazet@...il.com, socketcan@...tkopp.net,
	netdev@...r.kernel.org
Subject: Re: [PATCH stable 3.11+] can: bcm: add skb destructor

From: Andre Naujoks <nautsch2@...il.com>
Date: Wed, 29 Jan 2014 08:40:03 +0100

> Even if this is a bug in the CAN BCM implementation. Your "fix" just
> enabled a user space application to shut down any machine with a kernel
> containing the BUG_ON patch.

Rather, he detected a potential stray pointer reference to freed data
that was caused by the CAN code which would difficult if not
impossible to detect otherwise.

That's even more dangerous, and you should be thanking him.
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