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 A2C13C433EF for ; Sat, 14 May 2022 21:58:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235619AbiENV64 (ORCPT ); Sat, 14 May 2022 17:58:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52742 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235601AbiENV6e (ORCPT ); Sat, 14 May 2022 17:58:34 -0400 Received: from mail-pj1-x1032.google.com (mail-pj1-x1032.google.com [IPv6:2607:f8b0:4864:20::1032]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCA4C40E68 for ; Sat, 14 May 2022 14:58:32 -0700 (PDT) Received: by mail-pj1-x1032.google.com with SMTP id w17-20020a17090a529100b001db302efed6so10863497pjh.4 for ; Sat, 14 May 2022 14:58:32 -0700 (PDT) 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=JzfWF5xEUyLdKqhX0/BNfMvKzUJWiSaq1KcpW14iYMw=; b=WUlUbVRF6tirwuKwDy2NkFQO/d2QfrAUOspNRkHBFDb8zh5PYzqPFuh8T5V1C13dXL LFH13+Od0CwiqKj4zQII9grfBvdPGnYi6BlF50c5YX57xB7aI063mkiBbOk+Ls4I51VW Ea82sWo3QQSM5HKAsah/AH9GJKBYLeEbbBlqg= 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=JzfWF5xEUyLdKqhX0/BNfMvKzUJWiSaq1KcpW14iYMw=; b=Fl/ivjkMW8+RT+7AlIDcGc6zKLAPgxEUNvWAWqtfHBXXCSabHOfP5N8++9MJFU4hie bcCSjeNhbISo244a4h1knFD/jnMRiQi16glU+18viQ5S1ImrFph58ftYf4HBjDI7Fo1/ pSH78qIzzbwnT6uPXIY+ZArhGf/4Rr+/KzzsogP/1l6fZHukWvfX4YzdsDNAd/xkYe4I HX+n4quRliy51ENQSU6S+dshLTBR0fscZUBnl4uYF+M7Z48AKxNKnkrGxsWgt9cz2vSp V5Ui61C8NPhXd9jc/U5H+ZtVctwv5aonKZYc7Lb2DM4rMLQ3D+FIXBEs/CE9PQarqtnH aTVg== X-Gm-Message-State: AOAM531pY3c3nZqQN3UiYgM1KOiJdJvVGB6IuO7x7gwxErIIgs2rvgQu b/DBZcAqBIjHOUf/3lNFMlc6hg== X-Google-Smtp-Source: ABdhPJwpfw7TbvPXHehxghPWQ4Qsa1e3wKrxEzkB//8n2/gpnFICcaugpHJZByhUFKa3kZET1C0iOA== X-Received: by 2002:a17:90b:4b03:b0:1dc:6554:1bf9 with SMTP id lx3-20020a17090b4b0300b001dc65541bf9mr22748680pjb.246.1652565512306; Sat, 14 May 2022 14:58:32 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id b2-20020a170902650200b0015e8d4eb264sm4182146plk.174.2022.05.14.14.58.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 May 2022 14:58:32 -0700 (PDT) Date: Sat, 14 May 2022 14:58:31 -0700 From: Kees Cook To: Sami Tolvanen Cc: linux-kernel@vger.kernel.org, Josh Poimboeuf , Peter Zijlstra , x86@kernel.org, Catalin Marinas , Will Deacon , Mark Rutland , Nathan Chancellor , Nick Desaulniers , Joao Moreira , Sedat Dilek , Steven Rostedt , linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev Subject: Re: [RFC PATCH v2 19/21] x86/vdso: Disable CFI Message-ID: <202205141458.54A04805B5@keescook> References: <20220513202159.1550547-1-samitolvanen@google.com> <20220513202159.1550547-20-samitolvanen@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220513202159.1550547-20-samitolvanen@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 13, 2022 at 01:21:57PM -0700, Sami Tolvanen wrote: > CC_FLAGS_LTO no longer includes CC_FLAGS_CFI, so filter these flags > out as well. > > Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook -- Kees Cook