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 6F3DEC3DA7A for ; Thu, 5 Jan 2023 23:37:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235819AbjAEXhJ (ORCPT ); Thu, 5 Jan 2023 18:37:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235644AbjAEXhG (ORCPT ); Thu, 5 Jan 2023 18:37:06 -0500 Received: from mail-pg1-x535.google.com (mail-pg1-x535.google.com [IPv6:2607:f8b0:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 46E1126F0 for ; Thu, 5 Jan 2023 15:37:05 -0800 (PST) Received: by mail-pg1-x535.google.com with SMTP id 7so142767pga.1 for ; Thu, 05 Jan 2023 15:37:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=fHKQ83TkKEHZNfWaTpd7I1p+Ye/n4ELFtjaRUnS2gPw=; b=LMqQtvzt2+QM2CkjErp2jFM2yQtbcYxDV0K/LKxTe1P8YmSGP2p7jeTlg3XOo2UHM0 1fDkl9f80UNImV2GTHXK1XNYOEXj2ghw/LpXe2GNEp0PPfCpbtR02fZ81Ey9jhZKmQFg KkMSbXyc18ptcvRcVAXuifGbERGMhlxK+dMWQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=fHKQ83TkKEHZNfWaTpd7I1p+Ye/n4ELFtjaRUnS2gPw=; b=YroX52QLR4UyTSJ1IWAYuvYJK5v8bPeEjbGGNP5ofAkVsWvjevCayH1LqfSglOqYG4 t2BGNkBIlw1uNOUooR+NhtKWiXTti+P4Nnuy0uLKRojdXT4ntYzgcBtVesVI15sqBHeV XveR8P95pbAraHQbd988N4xf4tEQtbskF9GwN+3e5nnmdj8m9iH/WWod0C9f+M6U/YH6 6aOznyvIFqQXxar14IjwoCrQjotV5PBq/ufprxmCmGA6XStJHeu1HfC3BcIHGdaKToSg pkv35M5qW3MReYwqtK0vlbRZ0dz6OGBTr4FJnljD8L729CnTPlXsb6L4gNb5OytX1kGo VVDA== X-Gm-Message-State: AFqh2kqrT0xrsrc4dJu1wjRQeqsprR/XpGRxMFo75apywISnC8aTfVIV DVy5Ke1WT3+zN9BDmygElL/c2Q== X-Google-Smtp-Source: AMrXdXufvlt5jsZ0Z77jyujuetbqgVHWtWYhgi+Ryfjs9AMwVglyDb0750tKRIXFRVwglbTba5/8Gw== X-Received: by 2002:aa7:8812:0:b0:582:c142:d4b8 with SMTP id c18-20020aa78812000000b00582c142d4b8mr11001418pfo.0.1672961824824; Thu, 05 Jan 2023 15:37:04 -0800 (PST) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id z126-20020a623384000000b00576ee69c130sm24850952pfz.4.2023.01.05.15.37.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Jan 2023 15:37:04 -0800 (PST) Date: Thu, 5 Jan 2023 15:37:03 -0800 From: Kees Cook To: "Gustavo A. R. Silva" Cc: "Gustavo A. R. Silva" , 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 Subject: Re: [PATCH] memremap: Replace 0-length array with flexible array Message-ID: <202301051536.1D1F92678@keescook> References: <20230105220151.never.343-kees@kernel.org> <202301051441.C1D7291921@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 05, 2023 at 05:14:23PM -0600, Gustavo A. R. Silva wrote: > > > 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. Cool. I'd like to get -fstrict-flex-arrays=3 finished this devel cycle, if possible. Can you add this one too? https://lore.kernel.org/lkml/YzIc8z+QaHvqPjLX@work I don't see it in patchwork which I find confusing too. :P -- Kees Cook