linux-kernel - Re: [PATCH] econet: 4 byte infoleak to the network

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Message-Id: <20110318.151532.52204604.davem@davemloft.net>
Date:	Fri, 18 Mar 2011 15:15:32 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	philb@....org
Cc:	segoon@...nwall.com, linux-kernel@...r.kernel.org,
	security@...nel.org, eric.dumazet@...il.com, tj@...nel.org,
	nelhage@...lice.com, netdev@...r.kernel.org
Subject: Re: [PATCH] econet: 4 byte infoleak to the network

From: Phil Blundell <philb@....org>
Date: Thu, 17 Mar 2011 11:50:01 +0000

> On Thu, 2011-03-17 at 14:40 +0300, Vasiliy Kulikov wrote:
>> struct aunhdr has 4 padding bytes between 'pad' and 'handle' fields on
>> x86_64.  These bytes are not initialized in the variable 'ah' before
>> sending 'ah' to the network.  This leads to 4 bytes kernel stack
>> infoleak.
>> 
>> This bug was introduced before the git epoch.
>> 
>> Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com>
> 
> Well spotted.  Thanks for the patch.
> 
> Acked-by: Phil Blundell <philb@....org>

Applied.
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