From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756044AbZERW4U (ORCPT ); Mon, 18 May 2009 18:56:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754731AbZERW4N (ORCPT ); Mon, 18 May 2009 18:56:13 -0400 Received: from mail-in-12.arcor-online.net ([151.189.21.52]:33570 "EHLO mail-in-12.arcor-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754172AbZERW4N (ORCPT ); Mon, 18 May 2009 18:56:13 -0400 X-DKIM: Sendmail DKIM Filter v2.8.2 mail-in-03.arcor-online.net 911D22C2D49 From: Bodo Eggert <7eggert@web.de> Subject: Re: super root shell/mode/api To: Andrea , andi@firstfloor.org, linux-kernel@vger.kernel.org Reply-To: 7eggert@gmx.de Date: Tue, 19 May 2009 00:56:12 +0200 References: User-Agent: KNode/0.10.4 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit Message-Id: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andrea wrote: > In order to be able to dump/terminate viruses, attacks and OOM processes an > admin should have the possibility to *quickly* SIGSTP *all* processes except > vga consoles and to switch from X11 to vga, maybe with SysRq. > > Is this possible? If there is a malware with root privileges, this would be of no use. You are 0wned. If there is a malware with user privileges, stopping these processes will be enough. So why bother?