Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755343Ab2JCVEU (ORCPT ); Wed, 3 Oct 2012 17:04:20 -0400 Received: from smtp.outflux.net ([198.145.64.163]:55835 "EHLO smtp.outflux.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754707Ab2JCVET (ORCPT ); Wed, 3 Oct 2012 17:04:19 -0400 Date: Wed, 3 Oct 2012 14:04:07 -0700 From: Kees Cook To: Alan Cox Cc: Linus Torvalds , "Theodore Ts'o" , Nick Bowler , Linux Kernel Mailing List Subject: Re: Linux 3.6 Message-ID: <20121003210407.GC9092@outflux.net> References: <20121003194614.GA2893@elliptictech.com> <20121003200515.GZ9092@outflux.net> <20121003204141.GB6026@thunk.org> <20121003204919.GA9092@outflux.net> <20121003205818.GB9092@outflux.net> <20121003220525.780cf3f2@pyramind.ukuu.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121003220525.780cf3f2@pyramind.ukuu.org.uk> Organization: Outflux X-HELO: www.outflux.net Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 800 Lines: 20 On Wed, Oct 03, 2012 at 10:05:25PM +0100, Alan Cox wrote: > > 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. > > If your early boot code trusts a random writeable user directory I think > you have other problems. You should see some of the things various Android devices do! :) -Kees -- Kees Cook @outflux.net -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/