From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262286AbTJDQJF (ORCPT ); Sat, 4 Oct 2003 12:09:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262321AbTJDQJE (ORCPT ); Sat, 4 Oct 2003 12:09:04 -0400 Received: from thebsh.namesys.com ([212.16.7.65]:41614 "HELO thebsh.namesys.com") by vger.kernel.org with SMTP id S262286AbTJDQJB (ORCPT ); Sat, 4 Oct 2003 12:09:01 -0400 Message-ID: <3F7EF082.3020702@namesys.com> Date: Sat, 04 Oct 2003 20:08:34 +0400 From: Hans Reiser User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3a) Gecko/20021212 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Max A. Krasilnikov" CC: linux-kernel@vger.kernel.org Subject: Re: reiserfs one user DoS? References: <20031004120625.GA41175@colocall.net> In-Reply-To: <20031004120625.GA41175@colocall.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Max A. Krasilnikov wrote: >Hi! >I have found such strange thing: > >pseudo@avalon at 14:04:00 ~> dd if=/dev/zero of=file bs=1 count=0 seek=1000000000000 > >After that my Intel Celeron 800 MHz/384M RAM 60G/Seagate U6 under >Linux-2.4.22-grsec on reiserfs was utilized 100% for more than 2 hours. >dd process can't be killed. > >Is this my flow or real bug? > > > it is fixed in reiser4. linux has a lot of DOS vulerabilities to logged in users, mostly due to the ability to consume all of some resource or another. forgive me for not discussing them publicly.;-) -- Hans