Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758873AbXFAGtU (ORCPT ); Fri, 1 Jun 2007 02:49:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757449AbXFAGtE (ORCPT ); Fri, 1 Jun 2007 02:49:04 -0400 Received: from py-out-1112.google.com ([64.233.166.178]:10110 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758145AbXFAGtB (ORCPT ); Fri, 1 Jun 2007 02:49:01 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Plcii/GX6KjanZAizJNlDADKy6f6UHuignS8ZFvyRetOr+xATYIQcuL+l2eXdhA9c6XCripuvVINv4Wd/vqU2VS9E9h9MT862WaYSpBdOV0aDkazlmggfRShQ0ROoa0/32Diixhy5mA40D73SfDQUK0zdtRQPa6MJaqTRVVqIIo= Message-ID: <25ae38200705312348r3cd02c90h5080617fa1f0a987@mail.gmail.com> Date: Fri, 1 Jun 2007 12:18:59 +0530 From: "Anand Jahagirdar" To: "Jens Axboe" Subject: Re: Patch related with Fork Bombing Atack Cc: security@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20070531134611.GZ32105@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <25ae38200705310645n5e913a91weaa14521908f7989@mail.gmail.com> <20070531134611.GZ32105@kernel.dk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1104 Lines: 30 On 5/31/07, Jens Axboe wrote: > On Thu, May 31 2007, Anand Jahagirdar wrote: > > 2) Printk message in my patch will definitely help Administrator/Root > > User to detect which particular user is trying fork bombing attack on > > his machine by looking at /var/log/messages or dmesg . he can take > > action against that particular user and kill his processes. > > You just opened a DoS possibility for any user, they can now flood the > syslog instead. > Jens Axboe when they try to flood the syslog using fork bombing attack, their messge will be printed only once in syslog and it will show how many times it has repeated. due to this he will not able to flood the syslog.and i am using only one single variable in my printk messge so it is quite not possible to flood the syslog. am i missing something?? anand > -- > > > - 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/