netdev - Re: [PATCH net-2.6 1/2] ethtool: Fix potential kernel buffer overflow in ETHTOOL

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Message-Id: <20100629.010105.55857802.davem@davemloft.net>
Date:	Tue, 29 Jun 2010 01:01:05 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	bhutchings@...arflare.com
Cc:	netdev@...r.kernel.org, santwona.behera@....com
Subject: Re: [PATCH net-2.6 1/2] ethtool: Fix potential kernel buffer
 overflow in ETHTOOL_GRXCLSRLALL

From: Ben Hutchings <bhutchings@...arflare.com>
Date: Mon, 28 Jun 2010 19:44:07 +0100

> On a 32-bit machine, info.rule_cnt >= 0x40000000 leads to integer
> overflow and the buffer may be smaller than needed.  Since
> ETHTOOL_GRXCLSRLALL is unprivileged, this can presumably be used for at
> least denial of service.
> 
> Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
> Cc: stable@...nel.org

Applied.
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