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 X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4753CC4321A for ; Tue, 11 Jun 2019 01:07:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 179312086A for ; Tue, 11 Jun 2019 01:07:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="FWOlulk8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390305AbfFKBH4 (ORCPT ); Mon, 10 Jun 2019 21:07:56 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:35375 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388845AbfFKBHz (ORCPT ); Mon, 10 Jun 2019 21:07:55 -0400 Received: by mail-pf1-f196.google.com with SMTP id d126so6300737pfd.2 for ; Mon, 10 Jun 2019 18:07:55 -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=u5VUi+/+Lp3OAaH6aBcp/joKd4Ukhdrm/Xfhm3m+Zjo=; b=FWOlulk89Q6sNilNUb0D0F/t8a5PzzbWoKjDJ1eUN29xQHlsqL7ThkTnhvM43M+9U7 QPEnykgcFvmVTTu97mH8oY3Ton+wi2vU/TtrN/FecWNSKtajohBgroG5J+hsj6N/4wOn i9h4b/3HSrn17VV1EQhx8iExlWfSV4D75cz58= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=u5VUi+/+Lp3OAaH6aBcp/joKd4Ukhdrm/Xfhm3m+Zjo=; b=F7a10kryTnXoCrqVq3q7up7U0l/yB4+EFDJXc7QWzh/uOw7wW7xx6nRjfPYxMer+xn YMHKY5YLq4bBXly+2bNuep51KfMCPLYgj1c5rak+hFvj+Xo4ONepoiAnRV/ETLNMHwow VFQOfYbzGbUKaFhZsPL1lDngD8qrMRt8T1mhEBntz4h1t2DlOw1Ja0z6kQwImefujMYx FfDyy8ueK28BuRGm7xaeB7g0PA1Nox11hqwDCxUNvl5ZjDPHoY9VQR9xexcW+mjltWdz nap1/QBkSRwZw7r8TZpK9b74icTBSQ2Y7OIwAXdmKQGqOcgib8KCpezM5u8qJVP+zbRv zGdw== X-Gm-Message-State: APjAAAXKJK/sfO7dW5IG+vyOwyZl7sfNSx9QR5tbQNuzTOwxkn7uLXWp WHj+1hMMr18WaxLbZ5NCE/b6Rw== X-Google-Smtp-Source: APXvYqwSHZV6TZmKE2BnqBSehi/etgohpy35hx8V8ZDuK0Vu6Sjla4NdnWPhouU70Rolf5tbYqGXDg== X-Received: by 2002:a17:90a:de0e:: with SMTP id m14mr24107021pjv.36.1560215275070; Mon, 10 Jun 2019 18:07:55 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id g9sm9861515pgs.78.2019.06.10.18.07.53 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 10 Jun 2019 18:07:54 -0700 (PDT) Date: Mon, 10 Jun 2019 18:07:53 -0700 From: Kees Cook To: Eric Biggers Cc: Matthew Wilcox , Laura Abbott , Andrew Morton , Rik van Riel , linux-kernel@vger.kernel.org Subject: Re: [PATCH] usercopy: Remove HARDENED_USERCOPY_PAGESPAN Message-ID: <201906101807.090F1FE1FC@keescook> References: <201905101341.A17DDD7@keescook> <201905111657.76FE0BDCEC@keescook> <20190512041142.GA24542@bombadil.infradead.org> <201905131430.541A76A6FE@keescook> <20190610223054.GT63833@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190610223054.GT63833@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 10, 2019 at 03:30:55PM -0700, Eric Biggers wrote: > Any progress on this patch? I have no had time yet; sorry. If anyone else would like to take a stab at it, I'd appreciate it. :) -- Kees Cook