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

austin wonderly lacrosse1991
Mon Jul 25 14:02:35 PDT 2011

it also sends large streams of data/ps-poll frame from not associated STA
(mac address) when it goes down, and the mac address is usually either my
laptop's or my phone's

On Mon, Jul 25, 2011 at 4:40 PM, austin wonderly <lacrosse1991 at>wrote:

> 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> 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
>> _______________________________________________
>> HostAP mailing list
>> HostAP at
-------------- next part --------------
An HTML attachment was scrubbed...

More information about the Hostap mailing list