linux-kernel - Re: [PATCH net-next-2.6] net: dev_addr

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Message-Id: <20090609.052150.253563947.davem@davemloft.net>
Date:	Tue, 09 Jun 2009 05:21:50 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	mingo@...e.hu, vegard.nossum@...il.com, john.dykstra1@...il.com,
	netdev@...r.kernel.org, penberg@...helsinki.fi,
	linux-kernel@...r.kernel.org, jpirko@...hat.com
Subject: Re: [PATCH net-next-2.6] net: dev_addr_init() fix

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Mon, 08 Jun 2009 15:49:24 +0200

> [PATCH net-next-2.6] net: dev_addr_init() fix
> 
> commit f001fde5eadd915f4858d22ed70d7040f48767cf 
> (net: introduce a list of device addresses dev_addr_list (v6))
> added one regression Vegard Nossum found in its testings.
> 
> With kmemcheck help, Vegard found some uninitialized memory
> was read and reported to user, potentialy leaking kernel data.
> ( thread can be found on http://lkml.org/lkml/2009/5/30/177 )
> 
> dev_addr_init() incorrectly uses sizeof() operator. We were
> initializing one byte instead of MAX_ADDR_LEN bytes.
> 
> Reported-by: Vegard Nossum <vegard.nossum@...il.com>
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
> Acked-by: Jiri Pirko <jpirko@...hat.com>

Applied, thanks.
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