From owner-freebsd-stable@FreeBSD.ORG Sat Apr 20 14:48:41 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id CFC21151 for ; Sat, 20 Apr 2013 14:48:41 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-pd0-f180.google.com (mail-pd0-f180.google.com [209.85.192.180]) by mx1.freebsd.org (Postfix) with ESMTP id B07A11FAA for ; Sat, 20 Apr 2013 14:48:41 +0000 (UTC) Received: by mail-pd0-f180.google.com with SMTP id q11so2739793pdj.25 for ; Sat, 20 Apr 2013 07:48:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=LY+E3tAxvKyher3Swf4KMgE1ZlU8hJzJ9HJ9VJeP5MA=; b=i+kSc4E1uljd/rpSMH8lMMjABNsCH1N5Gf/XYfoqV5QHkraTaO80Afhc00TR7LjIMI 4W+hpLXaQgZwf4enqSe6WqMyxgofrTkvXE32jVOg/G4Y/QAhe1TU0Nt7mKIDwokYmezd Ao7CBZb0XUgtgFT29zcwQ+61cUo4dWpTdotKpNgaE4ARTqslyO3YxLS5VfCE+ZtlUadw vKabZRMtTUK59/bluVNme2p8+LRPPoOR9zHazUh/+P114Z5+PF/2pAZsRryHa38WVnHS xxOobe14yphw2LSeMaWvJMX3yWY7u0xkG+XP5mKk9HZFxG/qm7Xscg8Wamm8Z6pnitDr Cx7Q== MIME-Version: 1.0 X-Received: by 10.68.90.36 with SMTP id bt4mr24121916pbb.42.1366469315075; Sat, 20 Apr 2013 07:48:35 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.70.27.99 with HTTP; Sat, 20 Apr 2013 07:48:35 -0700 (PDT) In-Reply-To: <5172965A.9080600@bsdinfo.com.br> References: <5172965A.9080600@bsdinfo.com.br> Date: Sat, 20 Apr 2013 07:48:35 -0700 X-Google-Sender-Auth: ZMYJcwDdoRNqmGoPBPOpqbFZfmk Message-ID: Subject: Re: Possible DoS in mpd 5.6 pppoe server From: Adrian Chadd To: Marcelo Gondim Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Apr 2013 14:48:41 -0000 Can you provide more information about the configuration of mpd and ppp? the panic is in the dummynet code; can you provide information about your ipfw/dummynet setup? Thanks, adrian On 20 April 2013 06:21, Marcelo Gondim wrote: > Hi all, > > I'm doing tests with mpdas pppoeserver. Tried to simulate an attack of 1000 > connections using an incorrect login and after a certain time can cause a > kernel panic in the system. Below the panicgenerated: > > http://pastebin.com/nUXGVR3y > > Other equipment I do: > > # for (( i=0; i < 1000; i++ )); do ppp -ddial intnet ; done > > My System: > > Intel Motherboard Server S5500BC with Dual Processor Xeon(R) CPU E5606 @ > 2.13GHz > 8Gb ram > > I do not understand programming in Cor Assembly. But could someone tell me > if what happened was a system problem or hardware? > > Best regards, > > Gondim > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"