linux-kernel - Re: [PATCH] davinci_emac: Fix use after free in davinci_emac

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Message-Id: <20100803.213616.48488045.davem@davemloft.net>
Date:	Tue, 03 Aug 2010 21:36:16 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	weil@...l.berlios.de
Cc:	netdev@...r.kernel.org, chaithrika@...com, srk@...com,
	khilman@...prootsystems.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] davinci_emac: Fix use after free in davinci_emac_remove

From: Stefan Weil <weil@...l.berlios.de>
Date: Tue,  3 Aug 2010 20:53:45 +0200

> free_netdev finally calls kfree which makes the contents
> of ndev and priv (private data contained in ndev) invalid.
> 
> So iounmap should be called before free_netdev.
> 
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Chaithrika U S <chaithrika@...com>
> Cc: Sriramakrishnan <srk@...com>
> Cc: Kevin Hilman <khilman@...prootsystems.com>
> Cc: netdev@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Stefan Weil <weil@...l.berlios.de>

I'll apply this, thanks.
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