Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272917AbTHPXlJ (ORCPT ); Sat, 16 Aug 2003 19:41:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272942AbTHPXlJ (ORCPT ); Sat, 16 Aug 2003 19:41:09 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:59576 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S272917AbTHPXlH (ORCPT ); Sat, 16 Aug 2003 19:41:07 -0400 Date: Sun, 17 Aug 2003 00:41:04 +0100 From: "Dr. David Alan Gilbert" To: Doug McNaught Cc: "David D. Hagood" , linux-kernel Subject: Re: Dumb question: Why are exceptions such as SIGSEGV not logged Message-ID: <20030816234104.GF710@gallifrey> References: <200308170410.30844.mhf@linuxmail.org> <200308162049.h7GKnwnP024716@turing-police.cc.vt.edu> <3F3EB8FA.1080605@sktc.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Chocolate: 70 percent or better cocoa solids preferably X-Operating-System: Linux/2.6.0-test3 (i686) X-Uptime: 00:34:20 up 13:06, 1 user, load average: 0.12, 0.12, 0.17 User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1110 Lines: 25 * Doug McNaught (doug@mcnaught.org) wrote: > > You can still DoS by forking repeatedly and having the child die with > SEGV... > True - but there are a million and one ways of similarly DoSing a box; an option to log programs terminated by a bad uncaught signal would seem useful to me; at least one of which could be as a sign of someone trying out buffer overrun type attacks on a system; and just as a diagnostic to catch apps that go pop when you aren't expecting them too. (I seem to remember ARM Linux actually does log user exceptions and very useful it is too). Dave -----Open up your eyes, open up your mind, open up your code ------- / Dr. David Alan Gilbert | Running GNU/Linux on Alpha,68K| Happy \ \ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex / \ _________________________|_____ http://www.treblig.org |_______/ - 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/