Received: by 2002:a05:6a10:2726:0:0:0:0 with SMTP id ib38csp2615431pxb; Fri, 25 Mar 2022 23:28:52 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxwiBdYmzojbtHi+kHDuVZ+3ba+HYxJRGdZ1MMuwVhs5XVApT8In1Hp7zyG8Dcl99iEJw1i X-Received: by 2002:a05:6402:4315:b0:419:2e38:ab8f with SMTP id m21-20020a056402431500b004192e38ab8fmr2838301edc.250.1648276132035; Fri, 25 Mar 2022 23:28:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1648276132; cv=none; d=google.com; s=arc-20160816; b=DHi4KNuMC9S9pP179UTLLO3rPz1ZtnZN4meAaTL4cYDW6V4zseqGGu+xgNyOwADiJe gmEM2J55de3xtf8zAWqlW3I8iJgCZvMJGIf/mgSUfeKUtA2HLAsN7RDRJ0OXkwkMhdwC sh900frTWlSFAc0K2Uu1RibY3omgQ+PeKkZZ/DF1bqMiE8V1HOG2AC1i7tks6IIZX1cx DyDxmBbffAs2wKOWcD0lnTCa8tSya9uTR4J0NaS6M30kAo/gQdvtbSnlU6zaGQ1ZfnwK VNt/t5uIsvB7yuncaxq/DwmisTRl7xGdYYIYrVyqDKzL1fYqcaEdn/ohcJb+cKSJwC4q 0Zvw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-transfer-encoding :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=tS1XDwWnIGT+u6bTdbb+stfJLQZUi3EdSW/XSsDj8Zg=; b=V8qWaMJ4LoMud8dYpOc8OjQGWCxaNug5mIeBO+pyhn8CdJfJ5RPzBgsFk1/w1Q5c01 RxshfBwpZXGHpe3J4ssdX4W4XITcviYKfqdQZFBoZKgSNRTaVRCsI9Ca+kayEPFq748e X+esi4WNwj/DVuPzJotUv0em5ff/UBKRMD+LMA7QupbnNRtw9KBne5JffFKiEQyyUnQ6 YK8CgMlxpMFF+kmKsKBA3cPVKBA9QK88MXbIHdVMPqI7o0grZwY6fzqo27TTk2DgzT9y vfpomN85/v8jaUjqBeXDS6jv8e58caBnWBcGm+LrOSjZzBDzCulpUUsQ9KWIbRy9Qe6q e3FA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=epZOOWmc; 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=kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id i16-20020a170906a29000b006df76385c26si5213755ejz.198.2022.03.25.23.28.27; Fri, 25 Mar 2022 23:28:52 -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=@kernel.org header.s=k20201202 header.b=epZOOWmc; 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=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229690AbiCZAbO (ORCPT + 99 others); Fri, 25 Mar 2022 20:31:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35994 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229456AbiCZAbM (ORCPT ); Fri, 25 Mar 2022 20:31:12 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B2F3130C10; Fri, 25 Mar 2022 17:29:37 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C0C56B82A72; Sat, 26 Mar 2022 00:29:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AAB47C2BBE4; Sat, 26 Mar 2022 00:29:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1648254574; bh=poGETAG+DQJ31NcrGPl7LcOyeM6AhqeGMqyfZs2gRLI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=epZOOWmcpDs0p9MOFj+cVMezAqejQAfLPEtWKpR0plyEvjeKH0kv7EHTIcKWwbTvy bEMygfnBxIVJHkoaDhzo5Z+z1YFFa5hJVjcxerb3/f943HfDUAjbiw/65dvZrNPU7G J5CMm9lDDJX8hF/wv9b7tQRQu+v0I/Yi0yytsJN862Gyg3501bbUo44a5YDP/ytRt+ EiSTq3kd7aaOxShfvfP5BuTWfXdZVAdyibXX07AoUvFfwhMKWpVz2PtNDSvP6+TbE8 1WaUkG41bs8RLlU2g3uSlVW4LTs/+y2LH3uLfLUfuXinUttHQ00rL+2DfDiVQt0Sv7 QD/fNp7kzVDng== Date: Fri, 25 Mar 2022 19:38:43 -0500 From: "Gustavo A. R. Silva" To: Kees Cook Cc: Luca Coelho , Kalle Valo , "David S. Miller" , Jakub Kicinski , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: Re: [PATCH][next] iwlwifi: fw: Replace zero-length arrays with flexible-array members Message-ID: <20220326003843.GA2602091@embeddedor> References: <20220216195015.GA904148@embeddedor> <202202161235.2FB20E6A5@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <202202161235.2FB20E6A5@keescook> X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,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, Feb 16, 2022 at 12:35:14PM -0800, Kees Cook wrote: > On Wed, Feb 16, 2022 at 01:50:15PM -0600, Gustavo A. R. Silva wrote: > > There is a regular need in the kernel to provide a way to declare > > having a dynamically sized set of trailing elements in a structure. > > Kernel code should always use “flexible array members”[1] for these > > cases. The older style of one-element or zero-length arrays should > > no longer be used[2]. > > > > [1] https://en.wikipedia.org/wiki/Flexible_array_member > > [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays > > > > Link: https://github.com/KSPP/linux/issues/78 > > Signed-off-by: Gustavo A. R. Silva > > Reviewed-by: Kees Cook Hi all, Friendly ping: can someone take this, please? ...I can take this in my -next tree in the meantime. Thanks -- Gustavo