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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 DC75CC433FF for ; Thu, 1 Aug 2019 20:19:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AE28320838 for ; Thu, 1 Aug 2019 20:19:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730571AbfHAUTT (ORCPT ); Thu, 1 Aug 2019 16:19:19 -0400 Received: from mail-qt1-f195.google.com ([209.85.160.195]:44553 "EHLO mail-qt1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726149AbfHAUTT (ORCPT ); Thu, 1 Aug 2019 16:19:19 -0400 Received: by mail-qt1-f195.google.com with SMTP id 44so40603230qtg.11 for ; Thu, 01 Aug 2019 13:19:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:reply-to :references:mime-version:content-disposition:in-reply-to:user-agent; bh=Vi1+WAMKxIpYjzfqnl+Q/U0DRaMXSChI7K2hV8MgGc0=; b=dK3Ehhfz0GXZvh3gn2Gh4u8fczx0m0bvq2QxAAkfU26WvvH+C/etX7Deb0b9ZNH518 OtxmE5MjPrqcXd+iqdrI+HlhgYAPz2UomfYABaeBXQ68yioOfodc5eYprRZyk3QUwfJP zXZR5HIEslcA8VmN7cSJ4VBNcvuvo8mzgt2irQHtCEnvUgyp14/JI7mvJAQUSzUOFpEK fX4+moqrV0HejvCX3iUouI6YfTK3HYRkJxhYBT7+UOGyXwY/iZTjXLlA+K1VZ9ZXuELF H493ezRIxh3lJgOcVp4JY4EMtKXED077/+bPVBKMIYcmvkMw0QLV+AW2+AXwbEL3eUbr QKag== X-Gm-Message-State: APjAAAU7GVh1CzlfTEdmQ78rw+rJDu/JhhOEI56q4GPHU4Jm7H8unKS1 wA85fEWtE+fZIjJWqX/usz53jYqTIQQ= X-Google-Smtp-Source: APXvYqxEKNU/e1nFU8rwymA3knG7isVH4QHAFouxIm7XYZTBnQzzQgKtXeS6SEwGMjfN7De3i86j3Q== X-Received: by 2002:a0c:b50c:: with SMTP id d12mr93522434qve.70.1564690757399; Thu, 01 Aug 2019 13:19:17 -0700 (PDT) Received: from localhost (ip70-163-223-149.ph.ph.cox.net. [70.163.223.149]) by smtp.gmail.com with ESMTPSA id a135sm32009608qkg.72.2019.08.01.13.19.16 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 13:19:16 -0700 (PDT) Date: Thu, 1 Aug 2019 13:19:13 -0700 From: Jerry Snitselaar To: linux-integrity@vger.kernel.org Cc: Matthew Garrett Subject: Re: unable to handle page fault in 5.3-rc[12] Message-ID: <20190801201913.mwxqdfqb2a7c2zwn@cantor> Reply-To: Jerry Snitselaar References: <20190801151314.f2tjk2b52mhxuc3x@cantor> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20190801151314.f2tjk2b52mhxuc3x@cantor> User-Agent: NeoMutt/20180716 Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Hi Matthew, cc'ing as this might have something to do with the recent changes to tpm_read_log_efi. On Thu Aug 01 19, Jerry Snitselaar wrote: >I've had a couple reports emailed to me with a trace like the following >for 5.3-rc1 and 5.3-rc2. I'm just starting to dig into and look at recent >commits and mailing list, but is this already known? > >It's been reported on a couple different Lenovo laptop models (T470s and X1 carbon I believe). > >Full panic message: >[ 0.774340] BUG: unable to handle page fault for address: ffffbc8fc00866ad >[ 0.774788] #PF: supervisor read access in kernel mode >[ 0.774788] #PF: error_code(0x0000) - not-present page >[ 0.774788] PGD 107d36067 P4D 107d36067 PUD 107d37067 PMD 107d38067 PTE 0 >[ 0.774788] Oops: 0000 [#1] SMP PTI >[ 0.774788] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.3.0-0.rc2.1.elrdy.x86_64 #1 >[ 0.774788] Hardware name: LENOVO 20HGS22D0W/20HGS22D0W, BIOS N1WET51W (1.30 ) 09/14/2018 >[ 0.774788] RIP: 0010:memcpy_erms+0x6/0x10 >[ 0.774788] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe >[ 0.774788] RSP: 0000:ffffbc8fc0073b30 EFLAGS: 00010286 >[ 0.774788] RAX: ffff9b1fc7c5b367 RBX: ffff9b1fc8390000 RCX: ffffffffffffe962 >[ 0.774788] RDX: ffffffffffffe962 RSI: ffffbc8fc00866ad RDI: ffff9b1fc7c5b367 >[ 0.774788] RBP: ffff9b1c10ca7018 R08: ffffbc8fc0085fff R09: 8000000000000063 >[ 0.774788] R10: 0000000000001000 R11: 000fffffffe00000 R12: 0000000000003367 >[ 0.774788] R13: ffff9b1fcc47c010 R14: ffffbc8fc0085000 R15: 0000000000000002 >[ 0.774788] FS: 0000000000000000(0000) GS:ffff9b1fce200000(0000) knlGS:0000000000000000 >[ 0.774788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >[ 0.774788] CR2: ffffbc8fc00866ad CR3: 000000029f60a001 CR4: 00000000003606f0 >[ 0.774788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >[ 0.774788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 >[ 0.774788] Call Trace: >[ 0.774788] tpm_read_log_efi+0x156/0x1a0 >[ 0.774788] tpm_bios_log_setup+0xc8/0x190 >[ 0.774788] tpm_chip_register+0x50/0x1c0 >[ 0.774788] tpm_tis_core_init.cold.9+0x28c/0x466 >[ 0.774788] tpm_tis_plat_probe+0xcc/0xea >[ 0.774788] platform_drv_probe+0x35/0x80 >[ 0.774788] really_probe+0xef/0x390 >[ 0.774788] driver_probe_device+0xb4/0x100 >[ 0.774788] device_driver_attach+0x4f/0x60 >[ 0.774788] __driver_attach+0x86/0x140 >[ 0.774788] ? device_driver_attach+0x60/0x60 >[ 0.774788] bus_for_each_dev+0x76/0xc0 >[ 0.774788] ? klist_add_tail+0x3b/0x70 >[ 0.774788] bus_add_driver+0x14a/0x1e0 >[ 0.774788] ? tpm_init+0xea/0xea >[ 0.774788] ? do_early_param+0x8e/0x8e >[ 0.774788] driver_register+0x6b/0xb0 >[ 0.774788] ? tpm_init+0xea/0xea >[ 0.774788] init_tis+0x86/0xd8 >[ 0.774788] ? do_early_param+0x8e/0x8e >[ 0.774788] ? driver_register+0x94/0xb0 >[ 0.774788] do_one_initcall+0x46/0x1e4 >[ 0.774788] ? do_early_param+0x8e/0x8e >[ 0.774788] kernel_init_freeable+0x199/0x242 >[ 0.774788] ? rest_init+0xaa/0xaa >[ 0.774788] kernel_init+0xa/0x106 >[ 0.774788] ret_from_fork+0x35/0x40 >[ 0.774788] Modules linked in: >[ 0.774788] CR2: ffffbc8fc00866ad >[ 0.774788] ---[ end trace 42930799f8d6eaea ]--- >[ 0.774788] RIP: 0010:memcpy_erms+0x6/0x10 >[ 0.774788] Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe >[ 0.774788] RSP: 0000:ffffbc8fc0073b30 EFLAGS: 00010286 >[ 0.774788] RAX: ffff9b1fc7c5b367 RBX: ffff9b1fc8390000 RCX: ffffffffffffe962 >[ 0.774788] RDX: ffffffffffffe962 RSI: ffffbc8fc00866ad RDI: ffff9b1fc7c5b367 >[ 0.774788] RBP: ffff9b1c10ca7018 R08: ffffbc8fc0085fff R09: 8000000000000063 >[ 0.774788] R10: 0000000000001000 R11: 000fffffffe00000 R12: 0000000000003367 >[ 0.774788] R13: ffff9b1fcc47c010 R14: ffffbc8fc0085000 R15: 0000000000000002 >[ 0.774788] FS: 0000000000000000(0000) GS:ffff9b1fce200000(0000) knlGS:0000000000000000 >[ 0.774788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >[ 0.774788] CR2: ffffbc8fc00866ad CR3: 000000029f60a001 CR4: 00000000003606f0 >[ 0.774788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >[ 0.774788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 >[ 0.774788] Kernel panic - not syncing: Fatal exception >[ 0.774788] Kernel Offset: 0x1d000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) >[ 0.774788] ---[ end Kernel panic - not syncing: Fatal exception ]---