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 E3D26C433FE for ; Fri, 28 Jan 2022 17:58:20 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 634476B0111; Fri, 28 Jan 2022 12:58:20 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 5E4F06B0114; Fri, 28 Jan 2022 12:58:20 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4AC7B6B0116; Fri, 28 Jan 2022 12:58:20 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay035.a.hostedemail.com [64.99.140.35]) by kanga.kvack.org (Postfix) with ESMTP id 38F5B6B0111 for ; Fri, 28 Jan 2022 12:58:20 -0500 (EST) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id F0B9222BD6 for ; Fri, 28 Jan 2022 17:58:19 +0000 (UTC) X-FDA: 79080455160.03.C513D52 Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) by imf30.hostedemail.com (Postfix) with ESMTP id 455BE8003D for ; Fri, 28 Jan 2022 17:58:19 +0000 (UTC) Received: by mail-pl1-f170.google.com with SMTP id s6so1234549plg.12 for ; Fri, 28 Jan 2022 09:58:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=qMBeUtTGoBAaUmn8ulylEeU3TILxfDlpE26BBKiNnGY=; b=J7fuSAhEvpVepqu4bHtpGok7OuYMF9RjkZNrGHmNgrE3z94rFzSezvXY1VOwIJRPne HDraILoeB+OqGPXAMfYrq42DJ1VEKRhNZ5KbKSdVW71X/qYEYlKw9piEK2FL2LkgD438 fhLhq8AjSchO7gxQu78V/tqZ3W0KAYttERvW8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=qMBeUtTGoBAaUmn8ulylEeU3TILxfDlpE26BBKiNnGY=; b=8PFte18hy/pd7O+AJYAvl9Q2onIr2C81m9fAtEFx517B30kWxnzXWQrQpxxFpc7/ZV oF8ISKP7hqJmlnQtkRnFAJ+ciSO9Mlph0uLjBc0y/9BAF8DbbEXATtYllSPX64N8xrMQ S83I/fM9K5k5KQohW39iBlJ8Fuv/XpPhz+6ViJ/ZR8UPD9CGMc1IOJ/BGraphQSGOq99 Hd2BrAEozaOnBdpwOPUM2VUg2eWTMV8KsoliNkAJy6jLpLJWgYsTCb+4C9M8RLQpynct kAlHhxAkVnSFccnqtXPmwpx2bdx/rkI3Y2fCXL7QDgWz+d7Xfju1p3LoyKVnUcDbfk5Q CS5Q== X-Gm-Message-State: AOAM530NVjctu9Y2CKZyh7lFDR+6QVYYuOsPGUg4GninmPE3z/xGWGfm f0zJKsCluAA59R15t0p8fXNB1g== X-Google-Smtp-Source: ABdhPJx5tvndvTY7lS7GUegKk//TLoB/LnrEz7voqsYYRocSw26tJo+R5gzx4F/9MEcP+wqMwA5t9w== X-Received: by 2002:a17:902:bf0a:: with SMTP id bi10mr9948941plb.164.1643392698276; Fri, 28 Jan 2022 09:58:18 -0800 (PST) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id p17sm5893755pfo.11.2022.01.28.09.58.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Jan 2022 09:58:18 -0800 (PST) Date: Fri, 28 Jan 2022 09:58:17 -0800 From: Kees Cook To: Marco Elver Cc: Andrew Morton , Alexander Potapenko , Dmitry Vyukov , Nathan Chancellor , Nick Desaulniers , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-mm@kvack.org, Arnd Bergmann , linux-kbuild@vger.kernel.org Subject: Re: [PATCH] Revert "ubsan, kcsan: Don't combine sanitizer with kcov on clang" Message-ID: <202201280957.562D6AC@keescook> References: <20220128105631.509772-1-elver@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220128105631.509772-1-elver@google.com> X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 455BE8003D X-Stat-Signature: 455g84jr8ukh7p7eyxjz9bodbwg15n5r X-Rspam-User: nil Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=chromium.org header.s=google header.b=J7fuSAhE; spf=pass (imf30.hostedemail.com: domain of keescook@chromium.org designates 209.85.214.170 as permitted sender) smtp.mailfrom=keescook@chromium.org; dmarc=pass (policy=none) header.from=chromium.org X-HE-Tag: 1643392699-672144 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000006, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Jan 28, 2022 at 11:56:31AM +0100, Marco Elver wrote: > This reverts commit ea91a1d45d19469001a4955583187b0d75915759. > > Since df05c0e9496c ("Documentation: Raise the minimum supported version > of LLVM to 11.0.0") the minimum Clang version is now 11.0, which fixed > the UBSAN/KCSAN vs. KCOV incompatibilities. > > Link: https://bugs.llvm.org/show_bug.cgi?id=45831 > Link: https://lkml.kernel.org/r/YaodyZzu0MTCJcvO@elver.google.com > Signed-off-by: Marco Elver Yup, good to get rid of it. Reviewed-by: Kees Cook -- Kees Cook