From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264660AbUDVTwG (ORCPT ); Thu, 22 Apr 2004 15:52:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264650AbUDVTut (ORCPT ); Thu, 22 Apr 2004 15:50:49 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:9167 "EHLO atrey.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id S264654AbUDVTuM (ORCPT ); Thu, 22 Apr 2004 15:50:12 -0400 Date: Tue, 20 Apr 2004 21:40:17 +0200 From: Pavel Machek To: Zoltan.Menyhart@bull.net Cc: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Dynamic System Calls & System Call Hijacking Message-ID: <20040420194016.GF1413@openzaurus.ucw.cz> References: <4084E85E.4722BFC6@nospam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4084E85E.4722BFC6@nospam.org> User-Agent: Mutt/1.3.27i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > - Can't recompile the kernel, otherwise you gonna lose RedHat guarantee ? > Or some ISVs like whose name starts with an "O" and terminates with "racle" > ain't gonna support it ? > + No problem, I'll load your syscall in a module. Well, by forcing syscall in, you loose your guarantee, too. cat /dev/urandom > /dev/kmem "RedHat, help, my machine crashed." > Your remarks will be appreciated. I hope it at least taints the kernel. And you did test on smp kernel, trying to race syscall calling against your module load/unload, right? -- 64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms