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Message-ID: <20190130082857.GB24317@kroah.com>
Date: Wed, 30 Jan 2019 09:28:57 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: "Theodore Y. Ts'o" <tytso@....edu>, kernel-hardening@...ts.openwall.com,
linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
Jiri Slaby <jslaby@...e.com>
Subject: Re: [PATCH] tty: ldisc: add sysctl to prevent autoloading of ldiscs
On Mon, Jan 21, 2019 at 07:01:42PM -0500, Theodore Y. Ts'o wrote:
> On Mon, Jan 21, 2019 at 05:26:42PM +0100, Greg Kroah-Hartman wrote:
> > By default, the kernel will automatically load the module of any line
> > dicipline that is asked for. As this sometimes isn't the safest thing
> > to do, provide a sysctl to disable this feature.
> >
> > By default, we set this to 'y' as that is the historical way that Linux
> > has worked, and we do not want to break working systems. But in the
> > future, perhaps this can default to 'n' to prevent this functionality.
> >
> > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>
> Reviewed-by: Theodore Ts'o <tytso@....edu>
Thanks for the review!
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