netdev - Re: [PATCH net-next] net loopback: Set loopback

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Message-Id: <20130916.213435.1508866100258405440.davem@davemloft.net>
Date:	Mon, 16 Sep 2013 21:34:35 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	ebiederm@...ssion.com, edumazet@...gle.com, jiri@...nulli.us,
	alexander.h.duyck@...el.com, amwang@...hat.com,
	netdev@...r.kernel.org, fruggeri@...stanetworks.com
Subject: Re: [PATCH net-next] net loopback: Set loopback_dev to NULL when
 freed

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Mon, 16 Sep 2013 17:50:51 -0700

> On Mon, 2013-09-16 at 16:52 -0700, Eric W. Biederman wrote:
>> It has recently turned up that we have a number of long standing bugs
>> in the network stack cleanup code with use of the loopback device
>> after it has been freed that have not turned up because in most cases
>> the storage allocated to the loopback device is not reused, when those
>> accesses happen.
>> 
>> Set looback_dev to NULL to trigger oopses instead of silent data corrupt
>> when we hit this class of bug.
>> 
>> Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
>> ---
> 
> Acked-by: Eric Dumazet <edumazet@...gle.com>

I'd like to apply this to 'net', any objections?
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