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=-5.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 11605C3F2CD for ; Mon, 2 Mar 2020 15:29:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D4E2121739 for ; Mon, 2 Mar 2020 15:29:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=tycho-ws.20150623.gappssmtp.com header.i=@tycho-ws.20150623.gappssmtp.com header.b="Ka8fcbUo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727104AbgCBP3O (ORCPT ); Mon, 2 Mar 2020 10:29:14 -0500 Received: from mail-pj1-f65.google.com ([209.85.216.65]:52429 "EHLO mail-pj1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726751AbgCBP3O (ORCPT ); Mon, 2 Mar 2020 10:29:14 -0500 Received: by mail-pj1-f65.google.com with SMTP id lt1so1856586pjb.2 for ; Mon, 02 Mar 2020 07:29:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tycho-ws.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ZELvoTh0xXCJ16TM4LMcgSPymnk+qgV/Io9vwrxStOI=; b=Ka8fcbUomoExO8dMtRavZ6xdQDFoqTL+dMYjjXJnplJQqNty6kInHp/SA8oQqkNfoc mGep+DT/B7MFOUmHtYk3Eyuppv9vkrOcmRjAuJUUYww44Ms+jsBHeJpww+mCDbHSZAAo RBzbstkJYS1XpxL0UmA1+0+jaBFLusmx5PUpRtILwXTlfTbNUuTesemYQ7OGCVxovv3j DF0Aed3Nhf2ftEM8pWNsvWYJC8mmM6oEG2lFzB7anqXDcc8Z8x/65c9/4D2oV9vGlHyq ry9YkJu6JP4Kr19aM9RJmNgMs/42jsFIay1p87AEAgxzNxMwLhQXcz+W8wNEcv4h32Rx rgwA== 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:user-agent; bh=ZELvoTh0xXCJ16TM4LMcgSPymnk+qgV/Io9vwrxStOI=; b=BzsMXAbUG28ehaSp6QRdIkY4RwlLrmXTCoJz2tkyAGFeQ7YXjRd4I1us9O3FCNHDDG t/E6ld4RcUssgSPLnXel8ITabyUJn25QdjrmWPZPDVGD4eR5z8rwdfCLcO+3yexndlpG iUI8PZ7/3OXrNcDbp01ngjiX2663SAR3Fz7GRBh3tJXXWAjVV8PI6ip+iPlSErWXNIkU x0xt/AYZ8Hb58sTyf6mAa7ifX1Ih7Hr0QhOmsHxQtdReDTBvp0HxBiA9m3w0muOL30kh edcC/qOFvYabY4GLqB/F0IcFqqn4o1iiMjCgl7cRryWxOvEp1LT4Dezm9zBsqTjbDE7y Gd8Q== X-Gm-Message-State: APjAAAVVuHdHibrQ/2++2QjP+GMutdA4sOU0zm6ypbQjyYZYwXQJycqY uenlFtPRnj41Um/ZxOZh5AGEMg== X-Google-Smtp-Source: APXvYqyxlU/eQXwoIsbmUvLYYQ4AbS80Gp7//bZAGJ2KIFGK4BxXwB+sNYYCGL1sq8Z5F8aZXJNFig== X-Received: by 2002:a17:902:b40c:: with SMTP id x12mr18636387plr.70.1583162953095; Mon, 02 Mar 2020 07:29:13 -0800 (PST) Received: from cisco ([2001:420:c0c8:1003::427]) by smtp.gmail.com with ESMTPSA id z6sm38762pjd.34.2020.03.02.07.29.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Mar 2020 07:29:12 -0800 (PST) Date: Mon, 2 Mar 2020 08:29:09 -0700 From: Tycho Andersen To: Arvind Sankar Cc: "Tobin C . Harding" , kernel-hardening@lists.openwall.com, Kees Cook , Dave Hansen , Andy Lutomirski , Peter Zijlstra , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] x86/mm/init_32: Stop printing the virtual memory layout Message-ID: <20200302152909.GA7777@cisco> References: <202002291534.ED372CC@keescook> <20200301002209.1304982-1-nivedita@alum.mit.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200301002209.1304982-1-nivedita@alum.mit.edu> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Feb 29, 2020 at 07:22:09PM -0500, Arvind Sankar wrote: > For security, don't display the kernel's virtual memory layout. > > Signed-off-by: Arvind Sankar Acked-by: Tycho Andersen