From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, URIBL_SBL,URIBL_SBL_A,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0F21C3A5A1 for ; Sun, 25 Aug 2019 09:51:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9135F20674 for ; Sun, 25 Aug 2019 09:51:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726874AbfHYJvJ (ORCPT ); Sun, 25 Aug 2019 05:51:09 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:50358 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725809AbfHYJvJ (ORCPT ); Sun, 25 Aug 2019 05:51:09 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 07884812E3; Sun, 25 Aug 2019 11:50:53 +0200 (CEST) Date: Sun, 25 Aug 2019 11:51:06 +0200 From: Pavel Machek To: Matthew Garrett Cc: jmorris@namei.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, Josh Boyer , David Howells , Matthew Garrett , Kees Cook , rjw@rjwysocki.net, linux-pm@vger.kernel.org Subject: Re: [PATCH V40 10/29] hibernate: Disable when the kernel is locked down Message-ID: <20190825095106.GD1644@amd> References: <20190820001805.241928-1-matthewgarrett@google.com> <20190820001805.241928-11-matthewgarrett@google.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="u65IjBhB3TIa72Vp" Content-Disposition: inline In-Reply-To: <20190820001805.241928-11-matthewgarrett@google.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: --u65IjBhB3TIa72Vp Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon 2019-08-19 17:17:46, Matthew Garrett wrote: > From: Josh Boyer >=20 > There is currently no way to verify the resume image when returning > from hibernate. This might compromise the signed modules trust model, > so until we can work with signed hibernate images we disable it when the > kernel is locked down. >=20 > Signed-off-by: Josh Boyer > Signed-off-by: David Howells > Signed-off-by: Matthew Garrett > Reviewed-by: Kees Cook > Cc: rjw@rjwysocki.net > Cc: pavel@ucw.cz > cc: linux-pm@vger.kernel.org > Signed-off-by: James Morris Acked-by: Pavel Machek Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --u65IjBhB3TIa72Vp Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl1iWgoACgkQMOfwapXb+vJjIgCfUZfnFSM3yMH7xIKKwWsgpi8u qu4An2fFN+zbwRtWr/eFuPbuIfXNlZOF =jHC1 -----END PGP SIGNATURE----- --u65IjBhB3TIa72Vp--