linux-kernel - Re: [PATCH 25/27] debugfs: Restrict debugfs when the kernel is locked down

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Date:   Tue, 26 Mar 2019 09:43:51 +0900
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Matthew Garrett <mjg59@...gle.com>
Cc:     James Morris <jmorris@...ei.org>,
        LSM List <linux-security-module@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        acpi4asus-user@...ts.sourceforge.net,
        platform-driver-x86@...r.kernel.org,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 25/27] debugfs: Restrict debugfs when the kernel is
 locked down

On Mon, Mar 25, 2019 at 05:38:09PM -0700, Matthew Garrett wrote:
> On Mon, Mar 25, 2019 at 5:35 PM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> > On Mon, Mar 25, 2019 at 03:09:52PM -0700, Matthew Garrett wrote:
> > > Normal device interaction should be done through configfs, sysfs or a
> > > miscdev, not debugfs.
> >
> > Then why not just not allow debugfs at all if it is such a "big
> > problem"?
> 
> Previous attempts to do so have resulted in strong pushback from
> various maintainers. If you're happy just having any complaints
> reassigned to you then I'm more than happy to turn it off entirely.

Sure, send them my way :)