How to prevent unknown action category 3 or invalid frame from crashing hostap daemon

austin wonderly lacrosse1991 at gmail.com
Mon Jul 25 16:40:13 EDT 2011


Hello! The server is running debian squeeze version 6.0.2, this is a bare
bones version too, ive only installed what i require, do not have any extra
programs etc. I am using the ath9k module, plus the driver is nl80211. also
the version of hostapd i am using is hostapd v0.7.3, which was downloaded
from the hostapd website and compiled on the server. and when the server
kicks/stops connecting the wireless clients i get a flood of sent probe
request for broadcast ssid's in the hostapd console from all mac addresses

On Mon, Jul 25, 2011 at 4:10 PM, Jouni Malinen <j at w1.fi> wrote:

> On Mon, Jul 25, 2011 at 02:38:30PM -0400, austin wonderly wrote:
> > hello! thanks for responding :) im currently in the process of trying to
> get
> > it to do the same thing again in order to pull up a log, but would the
> fact
> > that the mac address for the invalid frame is coming from a single client
> > make any difference, as i have a few devices on the network including a
> > android cellhphone and a mac that are producing the category 3 messages,
> the
> > one that is producing them is windows 7 laptop. also for hostapd, i have
> a
> > dwa-552 wifi card running on a proliant dl380 server. i will also grab
> the
> > config file too incase there are any obvious errors.
>
> That debug entry from hostapd does not indicate that the Block Ack
> Action frame would be invalid; it just says that hostapd does not
> recognize the frame (and it should not since it does not process that
> frame). However, that frame should not really be delivered to hostapd in
> the first place..
>
> Which driver and/or Linux kernel version are you using? Which version of
> hostapd are you using?
>
> --
> Jouni Malinen                                            PGP id EFC895FA
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