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 82EE2C433EF for ; Mon, 31 Jan 2022 14:27:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235092AbiAaO1I (ORCPT ); Mon, 31 Jan 2022 09:27:08 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:35123 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233565AbiAaO1H (ORCPT ); Mon, 31 Jan 2022 09:27:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1643639226; h=from:from: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; bh=XotDDQeMlhTz5unKcz9Redk8XXunizuT/0Oe6ZUsayQ=; b=L+wwEK/1fLtj67m5YqeapOTyrZRHBiALiv7x/1p2t2cKwbYhIzOsSEXGT6uSGiAeACWOlP bsts6ToXx/O5kAaofSD+fTVXyed3m/8583z6WC0bkCRzvKb0PLwmwkQd1g0TW+8ZfRss+y 2F6OJ4aJrmr5UTsD41LQzPDXlpITGYM= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-654-t8kwxIjZNmGjaqbC6arWvw-1; Mon, 31 Jan 2022 09:27:05 -0500 X-MC-Unique: t8kwxIjZNmGjaqbC6arWvw-1 Received: by mail-wm1-f70.google.com with SMTP id l16-20020a1c7910000000b0034e4206ecb7so5831882wme.7 for ; Mon, 31 Jan 2022 06:27:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:organization:in-reply-to :content-transfer-encoding; bh=XotDDQeMlhTz5unKcz9Redk8XXunizuT/0Oe6ZUsayQ=; b=HyCsrgkagBhvvb3bqAHREi3JtERKpkX0EpkNuZ2fZ1K9ARgjdylVovjyxuTqn6U/uR dVP2doyorwSk2OD70Rz8beKkxydaz98mFQ/wJEUEQ7ngHQWNLumIMOJwpfGhkD/ECdlR Ub9oW3wXfapv5TA0m1wwz3pnB6ORNtqbSG5qivoRjxi6TtVEeG3PjPrSGFwrlAFe5LoA R2rUYr7xL2GHm6W2/eLx5VOWehCbmZkwApXtxOK6K/PGdpB1TPTenZlsIY+6P5BrHUiu zYL6rZ4N6S2w7peZVhFS/jNvEK5cy1+osaogMOs4pSpdccYezERLRFhTSmnzUUZDkMQI 2hLw== X-Gm-Message-State: AOAM531yRziXC9yRtAOi8r6y1qOzGKvta7REGyEVnSQVQj84uKdFaL8h /vH0EXMVK0kcL0PSx/0XunyNbM4iJHcxQknXj6sm8kXRL+ytNriuOa20Z9byA3/qoJ0kvOEhwkg 8r4GITBgpAhV3kZEHbXvlu81SdyU5 X-Received: by 2002:adf:da46:: with SMTP id r6mr17811711wrl.71.1643639224334; Mon, 31 Jan 2022 06:27:04 -0800 (PST) X-Google-Smtp-Source: ABdhPJwGhjD/linj4Vn3ALHc3LVkqeg6aXzW2W5KkJr0teagoNnaqzpRNVH01dvLGWWJHR+7qXTXPQ== X-Received: by 2002:adf:da46:: with SMTP id r6mr17811692wrl.71.1643639224097; Mon, 31 Jan 2022 06:27:04 -0800 (PST) Received: from ?IPV6:2003:cb:c709:b200:f007:5a26:32e7:8ef5? (p200300cbc709b200f0075a2632e78ef5.dip0.t-ipconnect.de. [2003:cb:c709:b200:f007:5a26:32e7:8ef5]) by smtp.gmail.com with ESMTPSA id z3sm10170246wmp.42.2022.01.31.06.27.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 31 Jan 2022 06:27:03 -0800 (PST) Message-ID: <2858cfa9-2329-6da9-82b8-643f29d548e6@redhat.com> Date: Mon, 31 Jan 2022 15:27:02 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH 4/4] usercopy: Remove HARDENED_USERCOPY_PAGESPAN To: "Matthew Wilcox (Oracle)" , Kees Cook Cc: linux-mm@kvack.org, linux-hardening@vger.kernel.org References: <20220110231530.665970-1-willy@infradead.org> <20220110231530.665970-5-willy@infradead.org> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20220110231530.665970-5-willy@infradead.org> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org On 11.01.22 00:15, Matthew Wilcox (Oracle) wrote: > There isn't enough information to make this a useful check any more; > the useful parts of it were moved in earlier patches, so remove this > set of checks now. > > Signed-off-by: Matthew Wilcox (Oracle) Very nice cleanup IMHO Reviewed-by: David Hildenbrand -- Thanks, David / dhildenb