From patchwork Mon Apr 17 06:07:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Brown X-Patchwork-Id: 9683609 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4BCE1600C5 for ; Mon, 17 Apr 2017 06:08:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D37B275A2 for ; Mon, 17 Apr 2017 06:08:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 317B727C05; Mon, 17 Apr 2017 06:08:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AF817275A2 for ; Mon, 17 Apr 2017 06:08:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932788AbdDQGIE (ORCPT ); Mon, 17 Apr 2017 02:08:04 -0400 Received: from relay2-d.mail.gandi.net ([217.70.183.194]:48903 "EHLO relay2-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933081AbdDQGHz (ORCPT ); Mon, 17 Apr 2017 02:07:55 -0400 Received: from mfilter16-d.gandi.net (mfilter16-d.gandi.net [217.70.178.144]) by relay2-d.mail.gandi.net (Postfix) with ESMTP id 1C28BC5A50; Mon, 17 Apr 2017 08:07:49 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mfilter16-d.gandi.net Received: from relay2-d.mail.gandi.net ([IPv6:::ffff:217.70.183.194]) by mfilter16-d.gandi.net (mfilter16-d.gandi.net [::ffff:10.0.15.180]) (amavisd-new, port 10024) with ESMTP id lYonXkLfAwMg; Mon, 17 Apr 2017 08:07:47 +0200 (CEST) X-Originating-IP: 72.66.113.207 Received: from vfio.nmatt.com.com (pool-72-66-113-207.washdc.fios.verizon.net [72.66.113.207]) (Authenticated sender: matt@nmatt.com) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id 1A026C5A68; Mon, 17 Apr 2017 08:07:45 +0200 (CEST) From: Matt Brown To: jmorris@namei.org, gregkh@linuxfoundation.org, akpm@linux-foundation.org Cc: linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-hardening@lists.openwall.com, Matt Brown Subject: [PATCH 4/4] added kernel.tiocsti_restrict sysctl Date: Mon, 17 Apr 2017 02:07:06 -0400 Message-Id: <20170417060706.28674-5-matt@nmatt.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20170417060706.28674-1-matt@nmatt.com> References: <20170417060706.28674-1-matt@nmatt.com> Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP this patch depends on patches 1, 2 and 3 Allow CONFIG_SECURITY_TIOCSTI_RESTRICT to be controlled via sysctl Signed-off-by: Matt Brown --- kernel/sysctl.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/kernel/sysctl.c b/kernel/sysctl.c index acf0a5a..68d1363 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -67,6 +67,7 @@ #include #include #include +#include #include #include @@ -833,6 +834,17 @@ static struct ctl_table kern_table[] = { .extra2 = &two, }, #endif +#if defined CONFIG_TTY + { + .procname = "tiocsti_restrict", + .data = &tiocsti_restrict, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax_sysadmin, + .extra1 = &zero, + .extra2 = &one, + }, +#endif { .procname = "ngroups_max", .data = &ngroups_max,