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[209.132.180.67]) by mx.google.com with ESMTP id j70si94202oib.219.2020.02.26.11.27.05; Wed, 26 Feb 2020 11:27:17 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=JvaV8Kgi; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727253AbgBZT0Q (ORCPT + 99 others); Wed, 26 Feb 2020 14:26:16 -0500 Received: from mail-pf1-f169.google.com ([209.85.210.169]:43480 "EHLO mail-pf1-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727035AbgBZT0Q (ORCPT ); Wed, 26 Feb 2020 14:26:16 -0500 Received: by mail-pf1-f169.google.com with SMTP id s1so258077pfh.10 for ; Wed, 26 Feb 2020 11:26:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=5DzNmsGKabIiqxsuQFEwzfHh7R7C4KklYepK1ybNRcI=; b=JvaV8KgiqzoZBj6ydSQ9wuuSPmKsMcZlCBzIlL19/gYR0rinDPmvgQGXcIqtx1mDHc vFuipNjmbQwwkwM7sTSAyvGWM+yoKuDdXDhC8yd7Aj+gtgkk17kno5FXqnhPg+UUAUxE YbX/zPf26fsBftBmqKkM8PPSvOOCQ6ddOIvcLMPCHd5arVBaO/tFElf6CiY4LJ+cnWMw xrd1hh8jCWfIFRgiGphyi3upMeyTQfi3R7ZI4EWrWm0sDRAeWvkN7BD8jNMs1xNchCMO x0e0Y4TJYgMBYN6HA1qU1rDALtp0tPX+HlIQUUXZCFxzVEUJiyDhz2mVNfPsIWkhMNtU gK5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=5DzNmsGKabIiqxsuQFEwzfHh7R7C4KklYepK1ybNRcI=; b=kIwdT9AAeph9soO0pYbrtsoLCmeUhZ+x+a81VymQGbT96XZq3UiWBIOFTJCm88vfcz 16RqnKsSRobfuZWrqI1JcJrwn47j3Toz9wOk2AlB9F7W5eHK7eDaQS23CFqeFu5zB8DC DcnF3ZTjsl4KdOiLNyr8ASlwrFgPNMEQX+4F9o3N2k0YCOF7LoAnJkEXR9BbB3ygn2Ev otHk3gswbeHpt/KYVXMMOL6RqHzHk90ECNwsE2AsjTC7bZtbggQDagEoWxaKYfu4kEdr vDPzWAXRNll5ePxkUxZ56ZV1j7cPtHABENUhGA8Xh3LEd/pv3HhmvG7VxKXriSIKWzpz kLPQ== X-Gm-Message-State: APjAAAUY5ChvxJcnA0e3A/DkO3crSdkpRyM5e7eRUXhmFRfDg5SSld76 8V5l3zEYYCtXn/ciwiWOqnBx5ulIiSvjaVWGra6RLw== X-Received: by 2002:a63:4e22:: with SMTP id c34mr356104pgb.263.1582745173398; Wed, 26 Feb 2020 11:26:13 -0800 (PST) MIME-Version: 1.0 References: <20200222072144.asqaxlv364s6ezbv@google.com> <20200222074254.GB11284@zn.tnic> <20200222162225.GA3326744@rani.riverdale.lan> <202002242122.AA4D1B8@keescook> <20200225182951.GA1179890@rani.riverdale.lan> <202002251140.4F28F0A4F@keescook> <202002251358.EDA50C11F@keescook> <20200226015606.ij7wn7emuj4bfkvn@google.com> <202002252103.B4BBF01091@keescook> <16822a0460e37e7a388217c63da8882d2904d8fc.camel@linux.intel.com> In-Reply-To: <16822a0460e37e7a388217c63da8882d2904d8fc.camel@linux.intel.com> From: Nick Desaulniers Date: Wed, 26 Feb 2020 11:26:02 -0800 Message-ID: Subject: Re: --orphan-handling=warn To: Kristen Carlson Accardi Cc: Kees Cook , Fangrui Song , Arvind Sankar , Borislav Petkov , Nathan Chancellor , Thomas Gleixner , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , LKML , clang-built-linux , Michael Matz Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 26, 2020 at 11:11 AM Kristen Carlson Accardi wrote: > > On Tue, 2020-02-25 at 21:35 -0800, Kees Cook wrote: > > > > Thanks for looking into this! It'll be really nice to have the orphan > > section warnings working in the kernel. And getting the ground work > > for > > FGKASLR ready will be nice! > > > > Kristen, can I convince you that FG stands for function-granular > > instead of fine-grain? :) > > > > Yes, sounds good to me - that way if we ever do basic block reordering > or some crazy thing like that we don't have to say even-finer-fine- > grained KASLR :). LOL (I laugh now, but "never say never.") -- Thanks, ~Nick Desaulniers