netdev - Re: [PATCH net-2.6.25] [IPV6] ADDRLABEL: Fix double free on label deletion.

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Date:	Mon, 28 Jan 2008 16:21:04 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	yoshfuji@...ux-ipv6.org
Cc:	mitch@...ux.vnet.ibm.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-2.6.25] [IPV6] ADDRLABEL: Fix double free on label
 deletion.

From: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@...ux-ipv6.org>
Date: Mon, 28 Jan 2008 21:02:22 +0900 (JST)

> If an entry is being deleted because it has only one reference, 
> we immediately delete it and blindly register the rcu handler for it,
> This results in oops by double freeing that object.
> 
> This patch fixes it by consolidating the code paths for the deletion;
> let its rcu handler delete the object if it has no more reference.
> 
> Bug was found by Mitsuru Chinen <mitch@...ux.vnet.ibm.com>
> 
> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>

Applied, thank you.
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