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[209.132.180.67]) by mx.google.com with ESMTP id i84-v6si5221548pfd.17.2018.06.29.14.14.51; Fri, 29 Jun 2018 14:15:05 -0700 (PDT) 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=fail header.i=@google.com header.s=20161025 header.b=DUSMr9qG; dkim=fail header.i=@chromium.org header.s=google header.b="DhC/8qu4"; 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=fail (p=NONE sp=NONE dis=NONE) header.from=chromium.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937293AbeF2TrG (ORCPT + 99 others); Fri, 29 Jun 2018 15:47:06 -0400 Received: from mail-yw0-f195.google.com ([209.85.161.195]:39883 "EHLO mail-yw0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933642AbeF2TrE (ORCPT ); Fri, 29 Jun 2018 15:47:04 -0400 Received: by mail-yw0-f195.google.com with SMTP id 81-v6so3999114ywb.6 for ; Fri, 29 Jun 2018 12:47:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=lwNJOhLqgdviurbFlLqdrYSot6ycTMlaqs0G7YtXJiA=; b=DUSMr9qGA43/IOJ9JQrw8VjsLNjfsASsFJucYwRw9wNudQxVOxmShpLE7U4dYslVDM wuTHMlANwm7vSu2cvcdFumPbHZJhY6uaNAKa/dEHO4Xb+HrrPXQ/o8dybb3o6UJEGlCy uAIL+ToBAyfUMIAms021EWzJ5fxDDp4FKQw0g8njdCu1ICMqWrAje/azKGCB9RbOoAS/ y3c8gDvvXL1AkY6Bi/PQjf5EaFK0FEKsm1SF1eKr18Q1kjpCt2iWw2UL8ODnCAYXPRbD nktIPEErHq5X6AYeL1sY8m2OFB5tOuZT7xIbS7j0XaAMHlVF4x5MtP18YKMpAO94nop8 M+Xg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=lwNJOhLqgdviurbFlLqdrYSot6ycTMlaqs0G7YtXJiA=; b=DhC/8qu4VyCOOnZoidM9vWVUKQEbTqfCx7A/CdFSfC8Z6ipZASinNhoBCbytwKp+z6 HxzPiUWC1MgmpJXFhtvEca4uWIxaN7CmRXJpiB8P7iyoroFiAoAsaXGe7ETlEr5pIPH7 qTLtXgdnR+5JlXFjBrjStxPvtVzynIQR9/aP0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=lwNJOhLqgdviurbFlLqdrYSot6ycTMlaqs0G7YtXJiA=; b=GrrF/G1inYkycXI1S0zOBMhd35dscuWoKkXo1+IQsNUu3BfBxRZi7fXVfK6m86Cp3Z AM8/589cw08jLJtOJweuLcV4+w7CM8/7PJdT2oAylssuDrNnPWWeXzghF1TrMjblkwcS p7fSPSWeFYvaaOQalPaRt9NGAcJ7dwvbm/xPYlkkBToe58gDwMvGlWZAbqMOLTb6Y8wG 7q2DBbawl5rXgssVXjKE3Asw/0or8ZNhoTFmlJ2yopch13XUKMmdHY0GHjGxBGOXOo8e kKm6WG1FUpqg/OLZQGc1yvdEJNk+lVJ+gskf+S1IV7GRfzYvEgf5j3B/LX7wQ53LguS4 H1MQ== X-Gm-Message-State: APt69E2jRhMI4wVY6j2wK6WbU/m2k7VRohj5rn2GCZscD5twXWROP1cT UIXQIn04LkqK7w+YwQgotqtbljWy6XQWiYkdyBbvOA== X-Received: by 2002:a5b:b4e:: with SMTP id b14-v6mr8652862ybr.463.1530301624001; Fri, 29 Jun 2018 12:47:04 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a25:5f51:0:0:0:0:0 with HTTP; Fri, 29 Jun 2018 12:47:03 -0700 (PDT) In-Reply-To: <20180629190553.7282-1-labbott@redhat.com> References: <20180629190553.7282-1-labbott@redhat.com> From: Kees Cook Date: Fri, 29 Jun 2018 12:47:03 -0700 X-Google-Sender-Auth: nH_1CaDy1QI7tSS4BmgEhmiux-s Message-ID: Subject: Re: [PATCH] arm64: Clear the stack To: Laura Abbott Cc: Alexander Popov , Mark Rutland , Ard Biesheuvel , Kernel Hardening , linux-arm-kernel , LKML 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 Fri, Jun 29, 2018 at 12:05 PM, Laura Abbott wrote: > Implementation of stackleak based heavily on the x86 version Awesome! Now I just have to figure out how to unbreak cross-compilation after the kconfig changes to gcc-plugins. Whoops. :) -Kees -- Kees Cook Pixel Security