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=-4.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 0FA57C4727C for ; Tue, 29 Sep 2020 18:59:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8D28A2076D for ; Tue, 29 Sep 2020 18:59:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="iUYptqhO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728525AbgI2S7B (ORCPT ); Tue, 29 Sep 2020 14:59:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50414 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728172AbgI2S7A (ORCPT ); Tue, 29 Sep 2020 14:59:00 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C76F9C061755 for ; Tue, 29 Sep 2020 11:59:00 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id k13so5525279pfg.1 for ; Tue, 29 Sep 2020 11:59:00 -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=dk1cTODLxYw48Etf8ZXYv1O0s0b1u8jvfbtZJWNF/FU=; b=iUYptqhO1Cb1oqT70B6OiYOEYPvUtMv6DmPRynZqXb0UsVj/WglJDwZUkMpyqS2El8 Fd8UtabAKffredo2BSoKxIcFQbo25h/vpQ00kE9PoG5u9WEJ0ixa5dWISEAnpDqMzojB +00ID59hznF2RjXcFfPz2RjUs2bfCHrZQogjU= 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=dk1cTODLxYw48Etf8ZXYv1O0s0b1u8jvfbtZJWNF/FU=; b=GC0adJ78VZ/SlMBDzf5vxOWBNbia3qMnRWCfTKSLxH1tEQI85hX1KgNIwGoFswTgAt WAG3BJlKPcLgj3WNK46KwsQ6Nu9uf0s+caaV2cE+KiFawFlHWEbMwESjHqUSoKuU6+Zw uIyJxzMerIFg6H/1fz6dxMo5dAPUxU+YzKly3SUn9vhx3fPb0fzVnX6miSnjWplJlpgh 5QRRwg2QYgVJNnOda8dckfvGGm8IeRSSCBgEGL+/v4CN4Xc8233YtAe/ppVPWWX8APfY QwWIkzW6QRORRMs9re5W1AFA3nc8i+83xNc1I6z6xsl8F6ZgyM1/2fFuslYoIgXIZHOZ 2Fqw== X-Gm-Message-State: AOAM53233MJWTh7vbHZYP6G77bqVdIwAXZ2wT6x4LS9EVRz5p/OeVBow QyAEM/iNL57+4Ixa5K6tgDQduB5Q2HiJPwUU X-Google-Smtp-Source: ABdhPJzU/8kPj+74FsXi5Gk92Xw8EMgcTBYX8nGMWdrd6Q+OG2MvX/M1oO4s/mu3/8z3kZaxwqcXlA== X-Received: by 2002:a62:1dc1:0:b029:13e:d13d:a051 with SMTP id d184-20020a621dc10000b029013ed13da051mr5198108pfd.23.1601405940393; Tue, 29 Sep 2020 11:59:00 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id a15sm6170842pfi.119.2020.09.29.11.58.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 11:58:59 -0700 (PDT) Date: Tue, 29 Sep 2020 11:58:58 -0700 From: Kees Cook To: Kristen Carlson Accardi Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, arjan@linux.intel.com, x86@kernel.org, linux-kernel@vger.kernel.org, kernel-hardening@lists.openwall.com, rick.p.edgecombe@intel.com Subject: Re: [PATCH v5 00/10] Function Granular KASLR Message-ID: <202009291156.075F4215@keescook> References: <20200923173905.11219-1-kristen@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200923173905.11219-1-kristen@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 23, 2020 at 10:38:54AM -0700, Kristen Carlson Accardi wrote: > This patch set is an implementation of finer grained kernel address space > randomization. It rearranges your kernel code at load time > on a per-function level granularity, with only around a second added to > boot time. > > Changes in v5: > -------------- > [...] Builds and boots; looks happy. Hopefully this can go into -tip after the coming v5.10 merge window, for v5.11? Thoughts? Tested-by: Kees Cook -- Kees Cook