From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751422AbbH1Cir (ORCPT ); Thu, 27 Aug 2015 22:38:47 -0400 Received: from outbound.smtp.vt.edu ([198.82.183.121]:34730 "EHLO omr1.cc.vt.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750979AbbH1Ciq (ORCPT ); Thu, 27 Aug 2015 22:38:46 -0400 X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.6+dev To: David Howells , David Woodhouse Cc: linux-kernel@vger.kernel.org Subject: Module signing broken after SYSTEM_DATA_VERIFICATION commit? From: Valdis Kletnieks Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1440729515_2157P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Thu, 27 Aug 2015 22:38:35 -0400 Message-ID: <186755.1440729515@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1440729515_2157P Content-Type: text/plain; charset=us-ascii I build kernels with MODULE_SIG=y, MODULE_SIG_FORCE=n (for build and run coverage, but it shouldn't dork my system if it breaks). next-20150810 works just fine, but next-20150826 breaks modprobe - all calls to it drop this in the dmesg: [ 31.829322] PKCS7: Unknown OID: [32] 2.16.840.1.101.3.4.2.3 [ 31.829328] PKCS7: Unknown OID: [180] 2.16.840.1.101.3.4.2.3 [ 31.829330] Unsupported digest algo: 55 and the modprobe fails. This looks like the most suspicious commit in the area: commit 091f6e26eb326adbd718f406e440c838bed8ebb6 Author: David Howells Date: Mon Jul 20 21:16:28 2015 +0100 MODSIGN: Extract the blob PKCS#7 signature verifier from module signing though it could be something else equally recent. Is this ringing any bells, or should I go bisect it? --==_Exmh_1440729515_2157P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Exmh version 2.5 07/13/2001 iQIVAwUBVd/JqwdmEQWDXROgAQJrUQ/8DBWcODcwM9CuEQpxg82wugyaIQbmudAZ ePApD1QbySVQhR56+Lgpjb/7KmigYIkhbXFIWdsnJCN8A04LGoSg4zVlcuQrqPln gKQHwTLMrKbFWOjfb7OJ2vKjITY+s9iBExUAXgjx1DX7r2ErP+5vOB3EmZsG3wU/ 5sDsknyvdJox7LerQQHpM8IectUf4/KCbQPm5wUmJPNc+k5oDhmiGWR0DABGVzJX /430kq9F0QrMBY/emJ8TjMShe1x9K5u0c6kgVT91iPZdxjux/CeVju11SCSvzM1T qaeK5qzXFaJ4uu1gUd3aKR0C4RzDwLmrsT9nmC/q9yQeRLHXN3Htb2OjsY4UdvTk PV30oHqEiDzfjpC9E3uKA904I1tfZEyKp1QCuNOvDFEWcHHO2gxHzDTWVHOnczm8 ZedUMDKK9e0kPWaHs38Zy59wUaGwFRGYVSjyLGAy+xkHg1CujA4gsCT9oHkSexEw Z0PcZ4ARcqihlJf/kTQtkXP2dPoRfxtfUTTGJIbJtH4zYNRsWMXrImJ+mCZXko7H CECZNPdlgn3y1xVs+jWPifrvkc3gAoJNBTCiL6egVJzoU1bBULOLEddC4Bpfsdsn cLOwzFHOWGw/RmflqmZdDHeZpqL4/1U0DjjPtWW3Hvn+N4CyXDvJK2ApUTM1nmh3 qX/aZyJDUnM= =nSw5 -----END PGP SIGNATURE----- --==_Exmh_1440729515_2157P--