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Date: Fri, 31 Aug 2012 22:39:08 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Kees Cook <keescook@chromium.org>
Cc: linux-kernel@vger.kernel.org, James Morris <james.l.morris@oracle.com>,
        Eric Paris <eparis@redhat.com>, Jiri Kosina <jkosina@suse.cz>,
        John Johansen <john.johansen@canonical.com>,
        Dan Carpenter <dan.carpenter@oracle.com>,
        Al Viro <viro@zeniv.linux.org.uk>,
        linux-security-module@vger.kernel.org
Subject: Re: [PATCH] security: unconditionally call Yama
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On Fri, 31 Aug 2012 14:31:26 -0700
Kees Cook <keescook@chromium.org> wrote:

> Unconditionally call Yama, no matter what LSM module is selected.
> 
> Ubuntu and Chrome OS already carry patches to do this, and Fedora has
> voiced interest in doing this as well. Instead of having everyone carry
> these patches, just switch Yama to being unconditional when compiled
> into the kernel.

Not a good plan. What happens when everyone decides to stack every module
by ifdeffing in the kernel - mayhem. I'm all for it being possible but
done right - espeicall as I believe a proper proposal now for stacking
modules, and it should be done as part of that.

Alan