From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from thejh.net ([37.221.195.125]:55222 "EHLO thejh.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933461AbcI3S7V (ORCPT ); Fri, 30 Sep 2016 14:59:21 -0400 Date: Fri, 30 Sep 2016 20:59:17 +0200 From: Jann Horn To: Kees Cook Cc: Oleg Nesterov , Alexander Viro , Roland McGrath , John Johansen , James Morris , "Serge E. Hallyn" , Paul Moore , Stephen Smalley , Eric Paris , Casey Schaufler , Andrew Morton , Janis Danisevskis , Seth Forshee , "Eric . Biederman" , Thomas Gleixner , Benjamin LaHaise , Ben Hutchings , Andy Lutomirski , Linus Torvalds , "linux-fsdevel@vger.kernel.org" , linux-security-module , "security@kernel.org" Subject: Re: [PATCH v2 2/8] exec: turn self_exec_id into self_privunit Message-ID: <20160930185917.GI14666@pc.thejh.net> References: <1474663238-22134-1-git-send-email-jann@thejh.net> <1474663238-22134-3-git-send-email-jann@thejh.net> <20160930132046.GA12047@redhat.com> <20160930134404.GA12862@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="STPqjqpCrtky8aYs" Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-ID: --STPqjqpCrtky8aYs Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 30, 2016 at 11:30:23AM -0700, Kees Cook wrote: > On Fri, Sep 30, 2016 at 6:44 AM, Oleg Nesterov wrote: > > On 09/30, Oleg Nesterov wrote: > >> I think we should simply kill self/parent_exec_id's. I am going to send > >> the patch below after re-check/testing. > > > > Yes, I think this makes sense anyway. >=20 > Hrm, I also thought this was used for more than just signal checking, > but I don't see anything else right now. Maybe I was remembering > earlier versions of Jann's patches... Maybe you're thinking of grsecurity's exec_id (which I used as the basis for my first implementation of the unique ID before Andy suggested the LUID approach)? --STPqjqpCrtky8aYs Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJX7rYFAAoJED4KNFJOeCOoOTkQALFCAk+QCi4SX3L8TqPkv6Pc YltxkG/OvVhDHU3sfTjeelUeVV2YH5f5/XQ+cIsgWSJxFvdGhIxWNCk/HDh+5Zsu pIIBxD6xy4nVoJQe1PxTwUEBne1eKSjDjR1R5x+kO0qy/+99f3awPYuxHL7ieRG9 l/hzEheOXuPevjQyB8Ia+lppEJhd+mdS+Toi+E9llb0zvm9tVUGsjEPBQu2pB4Rx uKah0Ye75FFBwIPNmSFJdSZXrXH1bvEiLKJKcobVGSBcgRMJQYxkn21Hcw5ZKn1a 11OtFwse4XhgwFsksP5Jrx8YAaovwJPA1NyB0rNCQQa9+NMIsTSyACMU8jFC3fsZ 9x8RV2Fb1Snq9kthqDU17h0d5rOkKs9xdHuys1zBb6QcbA6E+4Yt7QI7nD8P3Qvx k0EHlOhi1MH5yqStzBCJqx1wpiiFxycl/Hq+sldXYoUkNR6TRlOXe/4NRr8aVSQO OznLI63RQsxLwPM1ECJiJPtZK/LJaafcQrtY2pmohJKCkMDNgroRAqYcJnMQbmLz pHmOB73RkNseLHqBAONh0JuEWaX3lmNodtnKD+UL3lRpu2BC3bj/8yOu2+bxIMmR uVi92PlhWPQqA9/xsYNOHpdjC/F5AWjQwXiyljFSOBJLsIZ5I3nlXlwgyRphUKaK 3vVO4cnPRn2s9G0pV5rI =n/Wm -----END PGP SIGNATURE----- --STPqjqpCrtky8aYs--