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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9A59AC3DA7A for ; Thu, 5 Jan 2023 23:14:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0E3548E0002; Thu, 5 Jan 2023 18:14:25 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 093DA8E0001; Thu, 5 Jan 2023 18:14:25 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E75758E0002; Thu, 5 Jan 2023 18:14:24 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id D57C48E0001 for ; Thu, 5 Jan 2023 18:14:24 -0500 (EST) Received: from smtpin21.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 99081C081C for ; Thu, 5 Jan 2023 23:14:24 +0000 (UTC) X-FDA: 80322301248.21.7EC198F Received: from omta35.uswest2.a.cloudfilter.net (omta35.uswest2.a.cloudfilter.net [35.89.44.34]) by imf27.hostedemail.com (Postfix) with ESMTP id EE7514000C for ; Thu, 5 Jan 2023 23:14:20 +0000 (UTC) Authentication-Results: imf27.hostedemail.com; dkim=pass header.d=embeddedor.com header.s=default header.b=GVtyvDDU; spf=pass (imf27.hostedemail.com: domain of gustavo@embeddedor.com designates 35.89.44.34 as permitted sender) smtp.mailfrom=gustavo@embeddedor.com; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1672960461; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=ubigo0rFpxz+YO1pYfYHRyoyOxP8HRuormf/DAHkGT8=; b=BzMJBsb1AKa66yMXmuuWYCH5BaH4RGVEnnxxJZuPh7gp5nAmfY/mFQe4F9WvfhzpoRH9LZ RDiK6+tOE6h/itVD3jQJ2aihhox8nTQ7zQByI+vI4pG+5r2PX3/D7rwQnLS5faRALkxNl2 mrauOc3PXLr6yH46qf6NsJWnQidbZOk= ARC-Authentication-Results: i=1; imf27.hostedemail.com; dkim=pass header.d=embeddedor.com header.s=default header.b=GVtyvDDU; spf=pass (imf27.hostedemail.com: domain of gustavo@embeddedor.com designates 35.89.44.34 as permitted sender) smtp.mailfrom=gustavo@embeddedor.com; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1672960461; a=rsa-sha256; cv=none; b=P5YJM+XAJzx5b5pkOfP7KRWIBJ8z2Yzb5F2RGfuPTiSSW0sHerKpmGJ+O0PogHx3biTLQ7 cfrYRnQKR1mG62ghs8LaPjAdusKuSs2/ZSboQwHp8wQzALAJiVmK+1FiP/aqvJFSanbrSJ Dtg4krugb3RmxjIydrBb2cGyl5Hla3o= Received: from eig-obgw-5005a.ext.cloudfilter.net ([10.0.29.234]) by cmsmtp with ESMTP id DQJxp4KCVE9lPDZRDp4Kq3; Thu, 05 Jan 2023 23:14:19 +0000 Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with ESMTP id DZRBppS4cthwlDZRCpyrQ2; Thu, 05 Jan 2023 23:14:18 +0000 X-Authority-Analysis: v=2.4 cv=NqzCzuRJ c=1 sm=1 tr=0 ts=63b759ca a=1YbLdUo/zbTtOZ3uB5T3HA==:117 a=wTog8WU66it3cfrESHnF4A==:17 a=dLZJa+xiwSxG16/P+YVxDGlgEgI=:19 a=IkcTkHD0fZMA:10 a=RvmDmJFTN0MA:10 a=wYkD_t78qR0A:10 a=VwQbUJbxAAAA:8 a=qnK4T_n2zri7Hv_-8ooA:9 a=QEXdDO2ut3YA:10 a=AjGcO6oz07-iQ99wixmX: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=ubigo0rFpxz+YO1pYfYHRyoyOxP8HRuormf/DAHkGT8=; b=GVtyvDDUg6g9jkbBm1QasH/D18 i7eXkYLcu7fFmi6x5NIbx+Qb43VSxrAlz7idcajozc96I4aqoVzAo07XBntb07TcWrYgY03IQpSzt YUsFpyHJGJk7cuij2zADS+IouHY29MI5NrKCSq6ZOKiKop2WAtg8BWvQkLbP1TAvZkwpP3f+fvs1V 3/tAElOHnWApql6RWG54jiShQwO91OzljlWub17zb3o9Jkj2nXL8mE+VASkx4zZwzBCy+4Z9GGox1 P006I/34FaqyNx+KUG9Vo/EmBD7LQXwWblrsD6AkfxkvsYStdJSpKMcxnF5w7lRH0qm5FYHmjSh9X EXm2FtDg==; Received: from 187-162-31-110.static.axtel.net ([187.162.31.110]:43898 helo=[192.168.15.7]) by gator4166.hostgator.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.95) (envelope-from ) id 1pDZRB-002yOM-6y; Thu, 05 Jan 2023 17:14:17 -0600 Message-ID: Date: Thu, 5 Jan 2023 17:14:23 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2 Subject: Re: [PATCH] memremap: Replace 0-length array with flexible array Content-Language: en-US To: Kees Cook , "Gustavo A. R. Silva" Cc: Andrew Morton , Dan Williams , Alex Sierra , Felix Kuehling , "Matthew Wilcox (Oracle)" , Shiyang Ruan , linux-mm@kvack.org, Alistair Popple , Joao Martins , Mike Rapoport , linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org References: <20230105220151.never.343-kees@kernel.org> <202301051441.C1D7291921@keescook> From: "Gustavo A. R. Silva" In-Reply-To: <202301051441.C1D7291921@keescook> 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 - kvack.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 187.162.31.110 X-Source-L: No X-Exim-ID: 1pDZRB-002yOM-6y X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 187-162-31-110.static.axtel.net ([192.168.15.7]) [187.162.31.110]:43898 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 6 X-Org: HG=hgshared;ORG=hostgator; X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfDzTnCi+jSytezRb8oxVM/DvtK8Uily/gjCC45lKbA+LhCVacg+OPYYt04zbokMqlscGHOsj9n6Mnk7wya5S/yDb7wRPWs7y+6M0M7mN8zLhnk7OMfr0 ASGKxZ+hNd8JV7DKJL7Ez78KISwPR3M4mCUtYrkc6JYXL+j8MRjR+2BvfKKr9ev6DAl5znTfgzz0/ekRuARauGLi70yQoVsS/7g= X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: EE7514000C X-Stat-Signature: y7yhirq59cmb91wh5s36yx81dmah3kr5 X-HE-Tag: 1672960460-797707 X-HE-Meta: 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 oHnB0erp sTHk391/a1lT5Y+iPChbV7L2K86GUTeFJ7yBm6tL1gn8tQWSvy+gbXE8ieA02eWW7LYsTDJ8rKr75FtcD3FrPk72rpfw5ksaZgQ2nXGXBFmD93G+rihr8wpdKJtMOYSUXU2nxwjo23ORqECs= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 1/5/23 16:41, Kees Cook wrote: > On Thu, Jan 05, 2023 at 04:14:05PM -0600, Gustavo A. R. Silva wrote: >> I think this is the same patch: >> >> https://lore.kernel.org/linux-hardening/YxKO%2FjY1x0xTpl4r@work/ >> >> It's actually in linux-next. > > Hm, it's been in -next since September? Is this in a tree of yours that > didn't get pulled for v6.2? No. I didn't send it. It's just one of the two patches I have in my -next tree. They didn't look like high priority at the time. -- Gustavo