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Date: Sat, 20 Apr 2013 23:10:05 +0700
From: Eugene Grosbein <egrosbein@rdtc.ru>
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To: Marcelo Gondim <gondim@bsdinfo.com.br>
Subject: Re: Possible DoS in mpd 5.6 pppoe server
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On 20.04.2013 20:21, 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

You seem to use dummynet and the problem is not in mpd/pppoe code,
it's it the dummynet code. Look at http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/162558
for workarounds.