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Date: Tue, 29 Jun 2010 05:53:05 -1000
From: akuster <>
To: Eugene Teo <>
 "Steven M. Christey" <>
Subject: Re: kernel: ethtool: kernel buffer overflow in ETHTOOL_GRXCLSRLALL


Thanks for the info. Unfortunately it does affect a few MontaVista
kernels. Is it possible to get a CVE for this?


On 06/28/2010 04:10 PM, Eugene Teo wrote:
> FYI, "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." This was introduced in v2.6.27-rc1 via
> upstream commit 0853ad66. Also see commit 59089d8d.
> Reference:
> I'm not requesting a CVE name for this as it did not affect any of our
> Red Hat supported Linux kernels.
> Thanks, Eugene

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