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[209.132.180.67]) by mx.google.com with ESMTP id u16si11261396edi.310.2019.11.05.06.26.43; Tue, 05 Nov 2019 06:27:07 -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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389504AbfKEOXj (ORCPT + 99 others); Tue, 5 Nov 2019 09:23:39 -0500 Received: from mout.kundenserver.de ([212.227.17.13]:49583 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389083AbfKEOXi (ORCPT ); Tue, 5 Nov 2019 09:23:38 -0500 Received: from mail-qk1-f170.google.com ([209.85.222.170]) by mrelayeu.kundenserver.de (mreue108 [212.227.15.145]) with ESMTPSA (Nemesis) id 1Mj8iJ-1hxtan37R7-00f9Ij; Tue, 05 Nov 2019 15:23:36 +0100 Received: by mail-qk1-f170.google.com with SMTP id h15so11531680qka.13; Tue, 05 Nov 2019 06:23:36 -0800 (PST) X-Gm-Message-State: APjAAAVlMfeuJT7rM+C/sroAovXLCi1GZcDkVuDDZwQUVENLWPutJqCP npS776GVNjjF7+F/LjxKY20czgP5tkbnzrAVDVI= X-Received: by 2002:a37:4f13:: with SMTP id d19mr7205469qkb.138.1572963815449; Tue, 05 Nov 2019 06:23:35 -0800 (PST) MIME-Version: 1.0 References: <20191031113608.20713-1-christian.brauner@ubuntu.com> In-Reply-To: <20191031113608.20713-1-christian.brauner@ubuntu.com> From: Arnd Bergmann Date: Tue, 5 Nov 2019 15:23:19 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH] clone3: validate stack arguments To: Christian Brauner Cc: "linux-kernel@vger.kernel.org" , Florian Weimer , GNU C Library , Kees Cook , Jann Horn , David Howells , Ingo Molnar , Oleg Nesterov , Linus Torvalds , Peter Zijlstra , Linux API , "# 3.4.x" Content-Type: text/plain; charset="UTF-8" X-Provags-ID: V03:K1:g9UvdAFkc5K5I1WUz3TIItfnCw2AoYB7lvNx6PYbY2iTTZkZBuV 1T7QX9Skaji8HOzG6B7oI/t8iwBJdguhPv+e44QUBvV9T+P/RTh7gqvoR44j29THV/jswrA fpiuKzqM7ga+3+/dQVv3Cx3ADfxY70sJmqgE6Mrc3bLpeZJAS+JxJx+BbQkAhZpd8UvSDyi oZ/0oeJrAiKrU5ZTYGhJA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:5JY4BvQQdNI=:MuZI6gc0XPZdqM1HqDwBh1 u0UgyA7sT+aegKhB7KPWR7ohGn/3nu3xLEG1jaj9XeHSyMjKH4tntDL0YGpwKh+aEn36jjWoQ QH3ok9yLl+Z9uzG6DBLbdwXOXKB2i2y9vAtEyiaK3Qm4DR58vPtAO6jdSNcUD+UgEnvLHPrm5 B+UUtbM6rx/08GFsyMsG03qdnMteLatFdX06hSriygEiN/J6aMlnEGIGErrJr8L4wsNQw1gup a8AtGWcxY/Tvu2hQ20n6JrpKwlpC1OU2VGaHezL1BSt+TyChSe6p7+LYMOvSW36ythyBuq+oz ABW/P+Wxjw0eiS0vQxJ61IKNL13kzyDAztMQFa6J8EuyosGfeFfpQkw7f4JzG6gHDaVcySuhJ o0JpDtJelNviB5raADwGCL+/CfkTCxfq6SfAHd8k2M9gwAUdhbC2a4wZX3Py7bcV1/gTH0QKp 3jN0Mr22gAYLDY3nAOVyeVu8e7CYvzVJpX2VghN6kqvt2LhaqMmAXmKOUpRh3Wbn66sK6PGwF 1sYQ8lw/3d77PGBwKu+wGtnUlLZ3kEgv8C8DUnpeW8yWWtY+nYXM4KHq23B0dULgBr2wUt4Nw urjfHfu2CIRi3XEXaKyebuelQgWIgxLvHqPLKiKHIBhQwzWHM5dnK4ZwT4n0ppV4/sVKnWmFU SRnVxlJuPv5JpXXVfVB/tG0M8NRQvoCVqf5W8FqLDSbCuqoQJtKOW1Dqxc4io1Bi2rP+Lz12l zcIfq7Jk7fv2MTgWWSumoxR9G7upXwkQlBP1Ei7RGeLirmpyhKnczDvVEN0ALdbwTpBTrQvHK HGSrWt5tMxCU+67V3YTynAvQCPcqUCL/8e1jHb21yJrYr7Vymn50VbK1AzuiD4nDNjDovO99P B+nb043KbWyQOUxGRw7w== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 31, 2019 at 12:36 PM Christian Brauner wrote: > > Validate the stack arguments and setup the stack depening on whether or not > it is growing down or up. > > Signed-off-by: Christian Brauner Acked-by: Arnd Bergmann