linux-kernel - Re: Linux 3.6

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Message-ID: <20121003205818.GB9092@outflux.net>
Date:	Wed, 3 Oct 2012 13:58:18 -0700
From:	Kees Cook <kees@...flux.net>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	"Theodore Ts'o" <tytso@....edu>,
	Nick Bowler <nbowler@...iptictech.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 3.6

On Wed, Oct 03, 2012 at 01:54:21PM -0700, Linus Torvalds wrote:
> On Wed, Oct 3, 2012 at 1:49 PM, Kees Cook <kees@...flux.net> wrote:
> >
> > I think the benefits of this being on by default outweigh glitches
> > like this. Based on Nick's email, it looks like a directory tree of his
> > own creation.
> 
> I agree that *one* report like this doesn't necessarily mean that we
> need to turn it off, if Nick is happy to just fix up his script and
> it's all local.
> 
> However, I suspect we'll see more. And once that happens, we're not
> going to keep a default that breaks peoples old scripts, and we're
> going to have to rely on distributions (or users) explicitly setting
> it.
> 
> Compatibility is just too important.

If this happens, I _really_ want to bring back the CONFIG options I had in
an earlier version of this patch. I want to be able to declare the default
at build time, and not leave a system vulnerable from boot until sysctls
get set.

-Kees

-- 
Kees Cook                                            @outflux.net
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