linux-kernel - Re: [PATCH] USB: disable all RNDIS protocol drivers

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Message-ID: <n9108s34-9rn0-3n8q-r3s5-51r9647331ns@vanv.qr>
Date:   Wed, 11 Jan 2023 14:38:04 +0100 (CET)
From:   Jan Engelhardt <jengelh@...i.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
cc:     linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Kalle Valo <kvalo@...nel.org>,
        Oleksij Rempel <linux@...pel-privat.de>,
        Maciej Żenczykowski <maze@...gle.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Andrzej Pietrasiewicz <andrzejtp2010@...il.com>,
        Jacopo Mondi <jacopo@...ndi.org>,
        Łukasz Stelmach <l.stelmach@...sung.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-usb@...r.kernel.org, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org,
        Ilja Van Sprundel <ivansprundel@...ctive.com>,
        Joseph Tartaro <joseph.tartaro@...ctive.com>
Subject: Re: [PATCH] USB: disable all RNDIS protocol drivers


On Wednesday 2022-11-23 13:46, Greg Kroah-Hartman wrote:
>
>The Microsoft RNDIS protocol is, as designed, insecure and vulnerable on
>any system that uses it with untrusted hosts or devices.  Because the
>protocol is impossible to make secure, just disable all rndis drivers to
>prevent anyone from using them again.
>
>Windows only needed this for XP and newer systems, Windows systems older
>than that can use the normal USB class protocols instead, which do not
>have these problems.


In other news, someone just proposed adding "RNDIS" things to UEFI, so 
now the security problem is added right back into machines but at 
another layer?!

https://edk2.groups.io/g/devel/topic/patch_1_3/95531719