linux-kernel - Re: [PATCH 2/2] net: deinit automatic LIST

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Message-Id: <20110218.121431.183035903.davem@davemloft.net>
Date:	Fri, 18 Feb 2011 12:14:31 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	torvalds@...ux-foundation.org, ebiederm@...ssion.com,
	mingo@...e.hu, opurdila@...acom.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, mhocko@...e.cz, netdev@...r.kernel.org,
	stable@...nel.org
Subject: Re: [PATCH 2/2] net: deinit automatic LIST_HEAD

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 18 Feb 2011 09:59:19 +0100

> commit 9b5e383c11b08784 (net: Introduce
> unregister_netdevice_many()) left an active LIST_HEAD() in
> rollback_registered(), with possible memory corruption.
> 
> Even if device is freed without touching its unreg_list (and therefore
> touching the previous memory location holding LISTE_HEAD(single), better
> close the bug for good, since its really subtle.
> 
> (Same fix for default_device_exit_batch() for completeness)
> 
> Reported-by: Michal Hocko <mhocko@...e.cz>
> Reported-by: Eric W. Biderman <ebiderman@...ssion.com>
> Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>

Applied.
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