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=unavailable 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 AD3D7C3F2CD for ; Mon, 2 Mar 2020 15:29:33 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 08B6B2084E for ; Mon, 2 Mar 2020 15:29:32 +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" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 08B6B2084E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tycho.ws Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-18037-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 5708 invoked by uid 550); 2 Mar 2020 15:29:26 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 5676 invoked from network); 2 Mar 2020 15:29:25 -0000 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=VKWOpZ64SpkiNjqzPFIwMtZLd6nHiuLIxttxq/1D56tFV+Tzf4PuWpK6JDqEdj+VLe MDDKpYrrgh6akfCEm2MbJmMXCVQgU0CliyJ00RnLAG9NHu4mGY21Jfm/VlRF17QokLmM JTbDAYTxM43aaI5O3VrA9mYBx0z0ue1LthJMqHvZvjm+zy95DCtKV+y85SrOUoSvUW7Z R9NRt8tPFyobQpj9RXB7EKI5rDCGjjowUmJYtmrtHqye/ffyCVJEgCKyk9g9dduJE1iI ea3GhF+a0IBLLamDjYdHn+Qw71edTsrG4mY4nkXWPK4MLxgLMzpUccja0KRi99t+gljN Ysag== X-Gm-Message-State: APjAAAWqdtaA5BULmRfcEFg2vlRWcMvI0/XH45PLokd4dD29hkhKPwtT noC+jih4lBBnrZ+6M1siXxcX7g== 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) 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) 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