Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2184425imu; Thu, 10 Jan 2019 09:37:47 -0800 (PST) X-Google-Smtp-Source: ALg8bN447neNT9caUjg4g2v/LLj/xr/aDPLuzlrVwzbn3dspRB5T0tzkbUR9tHa+R8m2pQBrH2Za X-Received: by 2002:a62:42d4:: with SMTP id h81mr11060430pfd.259.1547141867623; Thu, 10 Jan 2019 09:37:47 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1547141867; cv=none; d=google.com; s=arc-20160816; b=CrNV/NStpNLOY2a5erFZC/axpZSi1RjqB419+hEBSW9U04eHXLz6nZXC6ifzgQAjXV Ac41hAkBc3n0WJhMnw7r5MfXUj8qp/d3orLJEi5jnaMXrNdJs49h5WFOnHyj1mlp0XxH nKjL00PsaA1J5yeKs+wI44DW5vVN4Nvm2e1qEfGEpVaGkC7eJlqYZx6BotEtUVAa2qvz qJpHlNk2FzK5MxhO5JaO5sm+8Vy4jGZNqBtI63TR/melvdAICv12qDrOMFsIM4Z4D5jZ Ew6a8qBY4YBQ3W0YKaSdrBpKZiLH8+Edg9Dx5Disd7R/tc7L9cpvaSTHA9kmxuWzR7pE CP3A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:organization:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=yZSaUatCuhA0AW4j2xvg2+U1dU05nHo6yfJ5SUGZsMk=; b=BF6iBKXWW55ybOHpl54hX8958hCHFoAmDI7EsanU3ri/4uy+u1WnmQ5Qj1h5RxgzDx j9/1VrkrjB2jvvn6C+co34r/qCdtlDMNH+idduhe65SugWtYLjl0uvSg+P9B0fi83Aps LM09dAtLDdOKfrdjsez7MoyMfWe4ANen6YSga9aHMMeA4AcCt86lMdewYov/7KeUIDNj IQ8PgB69nMg+UUeUvWTugoJ1sN+tz2jG5JdodkoJIM9hzRe+6cqRV3J/yOXn1LWJXSgf vlJS8AWuX6WOLnNtuAqk8zy7n9hj4WxpgfsHA32kFc/oh6+EvXRfsyp6+caPSALGO4G3 pYLg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id k25si4100910pfe.10.2019.01.10.09.37.32; Thu, 10 Jan 2019 09:37:47 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730308AbfAJRgX (ORCPT + 99 others); Thu, 10 Jan 2019 12:36:23 -0500 Received: from mga03.intel.com ([134.134.136.65]:32720 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729918AbfAJRgW (ORCPT ); Thu, 10 Jan 2019 12:36:22 -0500 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jan 2019 09:36:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,462,1539673200"; d="scan'208";a="113735140" Received: from vanderss-mobl1.ger.corp.intel.com (HELO localhost) ([10.249.254.152]) by fmsmga007.fm.intel.com with ESMTP; 10 Jan 2019 09:36:17 -0800 Date: Thu, 10 Jan 2019 19:36:16 +0200 From: Jarkko Sakkinen To: Jia Zhang Cc: peterhuewe@gmx.de, jgg@ziepe.ca, tweek@google.com, linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] tpm/eventlog/tpm1: Fix off-by-1 when reading binary_bios_measurements Message-ID: <20190110173616.GF6589@linux.intel.com> References: <1546759399-45360-1-git-send-email-zhang.jia@linux.alibaba.com> <1546759399-45360-2-git-send-email-zhang.jia@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1546759399-45360-2-git-send-email-zhang.jia@linux.alibaba.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jan 06, 2019 at 03:23:19PM +0800, Jia Zhang wrote: > It is unable to read the entry when it is the only one in > binary_bios_measurements: > > 00000000 00 00 00 00 08 00 00 00 c4 2f ed ad 26 82 00 cb > 00000010 1d 15 f9 78 41 c3 44 e7 9d ae 33 20 00 00 00 00 > 00000020 > > This is obviously a firmware problem on my linux machine: > > Manufacturer: Inspur > Product Name: SA5212M4 > Version: 01 > > However, binary_bios_measurements should return it any way, > rather than nothing, after all its content is completely > valid. > > Fix: 55a82ab("tpm: add bios measurement log") Fixes: /Jarkko