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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69E2DCE7A88 for ; Sat, 23 Sep 2023 09:41:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231301AbjIWJlo (ORCPT ); Sat, 23 Sep 2023 05:41:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231270AbjIWJlk (ORCPT ); Sat, 23 Sep 2023 05:41:40 -0400 Received: from omta34.uswest2.a.cloudfilter.net (omta34.uswest2.a.cloudfilter.net [35.89.44.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C306E180; Sat, 23 Sep 2023 02:41:34 -0700 (PDT) Received: from eig-obgw-5007a.ext.cloudfilter.net ([10.0.29.141]) by cmsmtp with ESMTP id jx8dqihb7OzKljz8nqHS63; Sat, 23 Sep 2023 09:41:34 +0000 Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with ESMTPS id jz8mqxRQ2JUhvjz8nqzvrO; Sat, 23 Sep 2023 09:41:33 +0000 X-Authority-Analysis: v=2.4 cv=Re6Dtnhv c=1 sm=1 tr=0 ts=650eb2cd a=1YbLdUo/zbTtOZ3uB5T3HA==:117 a=P7XfKmiOJ4/qXqHZrN7ymg==:17 a=OWjo9vPv0XrRhIrVQ50Ab3nP57M=:19 a=dLZJa+xiwSxG16/P+YVxDGlgEgI=:19 a=IkcTkHD0fZMA:10 a=zNV7Rl7Rt7sA:10 a=wYkD_t78qR0A:10 a=NEAV23lmAAAA:8 a=X3a0BiUdAAAA:8 a=pGLkceISAAAA:8 a=VwQbUJbxAAAA:8 a=cm27Pg_UAAAA:8 a=AuTdd_Ep57LbaUdTmj8A:9 a=QEXdDO2ut3YA:10 a=aWu3muFgq6otJbhCXpL5:22 a=AjGcO6oz07-iQ99wixmX:22 a=xmb-EsYY8bH0VWELuYED:22 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=embeddedor.com; s=default; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=1wdEGoU6/HFupSbgOnwR5HVhL1BYLqkDW6W6jZfdmgk=; b=eYEDLGiik/sPc3rFhF5R0gumip w/4M5IrAfAdoNjcxjixWFMOXL6ngURCPhuDhqTA55oXq4vMA3Q5+qEz6tpEvmabK5ch8KEyAtD1L3 Ljh7kriitPrQdUHp0YfjXc0+urDlwVZEJTs27X+/7pAyPG5/dbWhEbgMb+f581HGVptruU3sZeK4r j+edhV8QVS3toL4DAs2vSYDK+xuPBgkSipD7ZvJn86rIC/vHI8poHMZACs4/iip0EhyPSXchdTfi8 VdxSl04lOpYp8v2V+b+PE5DIAASRYOcwC+wb8+7i+vwq6IlB++p8O6/BngulPZP8HhE7zUX1WJ1Hr kcLHkArA==; Received: from [94.239.20.48] (port=56476 helo=[192.168.1.98]) by gator4166.hostgator.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1qjy7B-003fxA-0S; Sat, 23 Sep 2023 03:35:49 -0500 Message-ID: Date: Sat, 23 Sep 2023 10:36:54 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH] regulator: da9062: Annotate struct da9062_regulators with __counted_by Content-Language: en-US To: Kees Cook , Support Opensource Cc: Liam Girdwood , Mark Brown , Nathan Chancellor , Nick Desaulniers , Tom Rix , linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org References: <20230922175330.work.066-kees@kernel.org> From: "Gustavo A. R. Silva" In-Reply-To: <20230922175330.work.066-kees@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 94.239.20.48 X-Source-L: No X-Exim-ID: 1qjy7B-003fxA-0S X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([192.168.1.98]) [94.239.20.48]:56476 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 0 X-Org: HG=hgshared;ORG=hostgator; X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfKngqgtP81oLlL261UtUjCKKYvYJgLXElwSiPlTaeXlE7g+L2dgfMmjl9OXQq8EuFJMGvUYXuO5C2AaBSpFvRo/31EMS4lSM269x96qzzbLu4rugzUuh qFURWikjsw1BlF2boc6puYvDG0FiI1vRQPS6S18HVkfgCFNOiEkWetDvEkUdEcmUJnxoHXdPon/haIGWGrXQpGe/qjX+UNv5IYaPzRq5nNFEmnuwLP+09TCM GmkyM/g45pDHuUBJCqHCsL1ncaDJmM5vCVV+sL2lgcI= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/22/23 11:53, Kees Cook wrote: > Prepare for the coming implementation by GCC and Clang of the __counted_by > attribute. Flexible array members annotated with __counted_by can have > their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS > (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family > functions). > > As found with Coccinelle[1], add __counted_by for struct da9062_regulators. > > [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > Cc: Support Opensource > Cc: Liam Girdwood > Cc: Mark Brown > Signed-off-by: Kees Cook Reviewed-by: Gustavo A. R. Silva Thanks -- Gustavo > --- > drivers/regulator/da9062-regulator.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/regulator/da9062-regulator.c b/drivers/regulator/da9062-regulator.c > index 1d354db0c1bd..e0c96f10e570 100644 > --- a/drivers/regulator/da9062-regulator.c > +++ b/drivers/regulator/da9062-regulator.c > @@ -73,7 +73,7 @@ struct da9062_regulators { > int irq_ldo_lim; > unsigned n_regulators; > /* Array size to be defined during init. Keep at end. */ > - struct da9062_regulator regulator[]; > + struct da9062_regulator regulator[] __counted_by(n_regulators); > }; > > /* Regulator operations */