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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 F251FC43331 for ; Wed, 13 Nov 2019 12:03:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C66FE2245C for ; Wed, 13 Nov 2019 12:03:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573646626; bh=BRAnggnfsbJTgIQ5lZaz2HxeSPSfVSTjxwdPk8Pofm0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=uxbPeRcmm9XnbTRbjC9a+jb3cb3VIfVxGiU/qD7F1pUDMipG+mFoSw45JL5zVhhmz qJ/K7KcHXTcLxAD+dE5iUUiqaVcmrfXGgAwtrrQd3cbeovXGQe99MlG7pHC0rSNxel fMB/p7c4O28J7XGtIKnPKufhc6H+QVu9CFy5Jfx4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726303AbfKMMDp (ORCPT ); Wed, 13 Nov 2019 07:03:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:46590 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725987AbfKMMDp (ORCPT ); Wed, 13 Nov 2019 07:03:45 -0500 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C0A0A22459; Wed, 13 Nov 2019 12:03:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573646624; bh=BRAnggnfsbJTgIQ5lZaz2HxeSPSfVSTjxwdPk8Pofm0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=xzp4NRxMOJpx/y4unzpizB452z625+l9fYQ4y2pPh8Jr8JH8Gbg4TYdE+wmmx2FDj q3HJwGgk5l8lI5cyRdIz4/d5ajRorVMfbEoF2VB1/4r3LUK9DrdvCEkMlReB1zlG71 zSTA8aSv2TN/opgU3z5GAvp5x6uy6tCRImCbEgvY= Date: Wed, 13 Nov 2019 12:03:38 +0000 From: Will Deacon To: Kees Cook Cc: Catalin Marinas , Mark Rutland , Sami Tolvanen , Steven Rostedt , Masami Hiramatsu , Ard Biesheuvel , Dave Martin , Laura Abbott , Marc Zyngier , Nick Desaulniers , Jann Horn , Miguel Ojeda , Masahiro Yamada , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 00/14] add support for Clang's Shadow Call Stack Message-ID: <20191113120337.GA26599@willie-the-truck> References: <20191018161033.261971-1-samitolvanen@google.com> <20191105235608.107702-1-samitolvanen@google.com> <201911121530.FA3D7321F@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201911121530.FA3D7321F@keescook> 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 Tue, Nov 12, 2019 at 03:44:42PM -0800, Kees Cook wrote: > On Tue, Nov 05, 2019 at 03:55:54PM -0800, Sami Tolvanen wrote: > > This patch series adds support for Clang's Shadow Call Stack > > (SCS) mitigation, which uses a separately allocated shadow stack > > to protect against return address overwrites. More information > > Will, Catalin, Mark, > > What's the next step here? I *think* all the comments have been > addressed. Is it possible to land this via the arm tree for v5.5? I was planning to queue this for 5.6, given that I'd really like it to spend some quality time in linux-next. Will