Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756248Ab2BOXlU (ORCPT ); Wed, 15 Feb 2012 18:41:20 -0500 Received: from tundra.namei.org ([65.99.196.166]:34662 "EHLO tundra.namei.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754551Ab2BOXlS (ORCPT ); Wed, 15 Feb 2012 18:41:18 -0500 Date: Thu, 16 Feb 2012 10:41:01 +1100 (EST) From: James Morris To: Kees Cook cc: linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, John Johansen , kernel-hardening@lists.openwall.com Subject: Re: [PATCH] Yama: add PR_SET_PTRACER_ANY In-Reply-To: <20120215004809.GO20420@outflux.net> Message-ID: References: <20120215004809.GO20420@outflux.net> User-Agent: Alpine 2.02 (LRH 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 893 Lines: 22 On Tue, 14 Feb 2012, Kees Cook wrote: > For a process to entirely disable Yama ptrace restrictions, it can use > the special PR_SET_PTRACER_ANY pid to indicate that any otherwise allowed > process may ptrace it. This is stronger than calling PR_SET_PTRACER with > pid "1" because it includes processes in external pid namespaces. This is > currently needed by the Chrome renderer, since its crash handler (Breakpad) > runs external to the renderer's pid namespace. > > Signed-off-by: Kees Cook Applied to git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next -- James Morris -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/