Received: by 10.192.165.148 with SMTP id m20csp5329735imm; Tue, 1 May 2018 13:03:57 -0700 (PDT) X-Google-Smtp-Source: AB8JxZpEGjKy3O23CvAwoJoGseGQMsdzQ6B7ztzU57MImp0KFX4xxWflEoPiESWL4EcWrwrIDEiZ X-Received: by 2002:a65:4102:: with SMTP id w2-v6mr13150983pgp.31.1525205037221; Tue, 01 May 2018 13:03:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1525205037; cv=none; d=google.com; s=arc-20160816; b=NPj001eoXk2y8SFPoppEMh/l8T9FqPEU2DFySXzHHfynVrA1DcAgyABaJg2MgnfpuU qt+kUZJaX2ZBxbD6mNkyl6yyeXHyN9G4eu7e38xNQWe4dJlEzJpWB8wo3LgypSKx8LjW zBNW5fsBMUDd7NJZeqkRR0RHoRITGSqlvAup4ZO/cH3JU8aAsuzXlwBZLRL1s1N8ucF1 Yd/L7SnEUe2OO0ZEjnMsZfbPQ6rfiXTnQhq8oACmhbPhaI7CJV02140EVQggYBn0vHDq N8GF8t/y+bSInUK0QoZ1HmJYPAAEjlMDyWQyt0k+2kQU/JsuNZmWJcmO2kZ9uJNzoEOT Y7ow== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=+K0QxF2li0eJFRzrCRjtufmdT8qOfJoUsv93IAaXR4Q=; b=w1Z8mRShcvgwtEowfqZqkSc4FJp6xd/WaSso4P1Yu0i+QMzcWotB/esbsyLlLp74N9 UDCvIkOicBv1cjVULkvbpzbEZPDrOtuzeflYf7zBsEsEDBr9eExZyKiABQsfECA3UJuP Ytb+JdWkiwLqWfUyM3YCWrLPsV28w2eC/mfDycpU0O6Vq61dpgyDipiH5N+gOnsceNrc sGsYVoVGRvQM7YUkx5zVIdJJEFYHIqZ56fiWPMqGdbxCTagwOJ9w0eRJe264Cwbguqlj bm3lUpelE4Lt13bGTuzh09VR0hshGYpoVaD+aS7sQ9giQFY0Z8B9C4C8KqvKYMbJcW0J jVGQ== 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l188si10794090pfc.266.2018.05.01.13.03.41; Tue, 01 May 2018 13:03:57 -0700 (PDT) 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751116AbeEAUDc (ORCPT + 99 others); Tue, 1 May 2018 16:03:32 -0400 Received: from mail.skyhub.de ([5.9.137.197]:39098 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750785AbeEAUDb (ORCPT ); Tue, 1 May 2018 16:03:31 -0400 X-Virus-Scanned: Nedap ESD1 at mail.skyhub.de Received: from mail.skyhub.de ([127.0.0.1]) by localhost (blast.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id uPM9Vk4twYgE; Tue, 1 May 2018 22:03:14 +0200 (CEST) Received: from pd.tnic (p200300EC2BCEF70068A1A718F7252EA8.dip0.t-ipconnect.de [IPv6:2003:ec:2bce:f700:68a1:a718:f725:2ea8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id C93B61EC009F; Tue, 1 May 2018 22:03:13 +0200 (CEST) Date: Tue, 1 May 2018 22:03:08 +0200 From: Borislav Petkov To: "Maciej S. Szmigiero" Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 4/6] x86/microcode/AMD: Check microcode container data in the late loader Message-ID: <20180501200308.GC13171@pd.tnic> References: <8f204a953dc4b46477e214ebd291021d7ab6fa6c.1524515406.git.mail@maciej.szmigiero.name> <20180430090527.GC6509@pd.tnic> <20180501084317.GC31863@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.3 (2018-01-21) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 01, 2018 at 06:19:56PM +0200, Maciej S. Szmigiero wrote: > -EINVAL cast to unsigned int is 4294967274 and this value is also > a valid count of bytes to skip that this function can return. And where exactly in the *old* code do we do that? -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.