netdev - Re: [patch 2/8] forcedeth: fix MAC address detection on network card (regression in 2.6.23)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <200711211850.36744.michael.pyne@kdemail.net>
Date:	Wed, 21 Nov 2007 18:50:31 -0500
From:	Michael Pyne <michael.pyne@...mail.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Ayaz Abdulla" <AAbdulla@...dia.com>, jeff@...zik.org,
	netdev@...r.kernel.org, stable@...nel.org
Subject: Re: [patch 2/8] forcedeth: fix MAC address detection on network card (regression in 2.6.23)

On Wednesday 21 November 2007, Andrew Morton wrote:
> On Wed, 21 Nov 2007 15:34:52 -0800
>
> "Ayaz Abdulla" <AAbdulla@...dia.com> wrote:
> > The solution is to get the OEM to update their BIOS (instead of
> > integrating this patch) since the MCP61 specs indicate that the MAC
> > Address should be in correct order from BIOS.
> >
> > By changing the feature DEV_HAS_CORRECT_MACADDR to all MCP61 boards, it
> > could cause it to break on other OEM systems who have implemented it
> > correctly.
>
> Getting an OEM to fix their BIOS isn't always a simple thing...
>
> Perhaps Michael's change should be enabled by a module parameter for
> those who happen to have the busted BIOS?

I have contacted the motherboard vendor about this a couple of weeks ago per 
Ayaz's request and have received no response.  I've also upgraded to the 
latest firmware for this motherboard and the bug remains.

I think it would be ideal if there were a way to detect broken MCP61's (i.e. 
those with a Gigabyte MAC ID instead of the nVidia one) and only reverse the 
MAC address then.  A module parameter would also work but then I'd need to 
remember to apply it. :)

Regards,
 - Michael Pyne

Download attachment "signature.asc " of type "application/pgp-signature" (190 bytes)