Possible DoS in mpd 5.6 pppoe server

Marcelo Gondim gondim at bsdinfo.com.br
Sat Apr 20 23:08:59 UTC 2013

Em 20/04/13 14:33, Eugene Grosbein escreveu:
> On 21.04.2013 00:26, Marcelo Gondim wrote:
>>> 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.
>> Ok  :)  I will try this:
>> - net.isr.bindthreads=1 in /boot/loader.conf;
>> - net.isr.direct=1 and net.isr.direct_force=1 in /etc/sysctl.conf
> For 9.x and newer, net.isr.XXX knobs names have changed but defaults are fine -
> if you have not messed them, you should be OK.

Does FreeBSD 8.3-STABLEis best for this use or this problem also occurs 
in 8.x?

Best regards,


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