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[2620:137:e000::1:20]) by mx.google.com with ESMTP id kv3-20020a17090328c300b001ae141947acsi2086225plb.183.2023.06.22.01.53.55; Thu, 22 Jun 2023 01:54:08 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=EGiTiEyc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231243AbjFVIqV (ORCPT + 99 others); Thu, 22 Jun 2023 04:46:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230117AbjFVIqH (ORCPT ); Thu, 22 Jun 2023 04:46:07 -0400 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C969A1FEE; Thu, 22 Jun 2023 01:44:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687423485; x=1718959485; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=LVdMj2T2ArMG74E0IdAmn+b3fPmyAwDXe/tmL1jqLRk=; b=EGiTiEycKjHhTJ81eD0xk6caggZRWF5tIcqA77i8ZZm/1oLHOM4bN8tb Gy3ZPNCIvBKYSJEuNxeka5mrHEE4rRv4CmF4CxWZSDmZ3pbyKgHibvjWw 7GqOfsrsiXy0+XlAUGlz4+esWTSoeGi2E7Nfet+5VCXZSL5pDFHyYV5SQ FzjNwD71EL0aG7iBbjrLGEkBLPsRrI10Z66ndY/576MRxwTO23E2bKPDy 92Zs26nZgtt5PEerFUQZZ9pM3XIYuJSRUGwqS2H+8+xvQOoMULlll/Y8w dTnjAGJpthazyEMU8h+VHDJQxyJqXAWoaNPdDFUKH4pNVK7REnQYnwH8h g==; X-IronPort-AV: E=McAfee;i="6600,9927,10748"; a="345161486" X-IronPort-AV: E=Sophos;i="6.00,263,1681196400"; d="scan'208";a="345161486" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jun 2023 01:44:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10748"; a="804701317" X-IronPort-AV: E=Sophos;i="6.00,263,1681196400"; d="scan'208";a="804701317" Received: from smile.fi.intel.com ([10.237.72.54]) by FMSMGA003.fm.intel.com with ESMTP; 22 Jun 2023 01:44:14 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.96) (envelope-from ) id 1qCFvJ-005ixr-1D; Thu, 22 Jun 2023 11:44:13 +0300 Date: Thu, 22 Jun 2023 11:44:13 +0300 From: Andy Shevchenko To: Armin Wolf Cc: Hans de Goede , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Gross Subject: Re: [PATCH v1 1/2] platform/x86: wmi: Break possible infinite loop when parsing GUID Message-ID: References: <20230621151155.78279-1-andriy.shevchenko@linux.intel.com> <25715979-8148-8d1d-fd67-a973661f9781@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <25715979-8148-8d1d-fd67-a973661f9781@gmx.de> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 21, 2023 at 11:20:04PM +0200, Armin Wolf wrote: > Am 21.06.23 um 17:11 schrieb Andy Shevchenko: ... > > - if (WARN_ON(guid_parse(id->guid_string, &driver_guid))) > > just an idea: how about printing an error/debug message in case of an > malformed GUID? This could be useful when searching for typos in GUIDs used > by WMI drivers. Commented on that separately. ... > Works on my Dell Inspiron 3505, so for this patch: > Tested-by: Armin Wolf Thank you for testing! -- With Best Regards, Andy Shevchenko