netdev - Re: [PATCH net-next] net: mdio: Add netlink interface

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: <684c859a-02e2-4652-9a40-9607410f95e6@lunn.ch>
Date:   Tue, 7 Mar 2023 14:49:27 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Michael Walle <michael@...le.cc>
Cc:     sean.anderson@...o.com, davem@...emloft.net, edumazet@...gle.com,
        f.fainelli@...il.com, hkallweit1@...il.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, linux@...linux.org.uk,
        netdev@...r.kernel.org, olteanv@...il.com, pabeni@...hat.com,
        tobias@...dekranz.com
Subject: Re: [PATCH net-next] net: mdio: Add netlink interface

On Tue, Mar 07, 2023 at 12:23:07PM +0100, Michael Walle wrote:
> > To prevent userspace phy drivers, writes are disabled by default, and can
> > only be enabled by editing the source.
> 
> Maybe we can just taint the kernel using add_taint()? I'm not sure if
> that will prevent vendors writing user space drivers. Thoughts?

I was thinking about taint as well. But keep the same code structure,
you need to edit it to enable write.

    Andrew