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

Jouni Malinen j
Mon Jul 25 11:03:55 PDT 2011

On Mon, Jul 25, 2011 at 11:43:42AM -0400, austin wonderly wrote:
> For some reason I keep receiving unknown frames from one of the clients in
> my network, and after a while its almost like it becomes unresponsive, is
> there a way to prevent this? Thanks!

What exactly do you mean with "crashing hostap daemon" (vs. "becomes
unresponsive")? Action category 3 is Block Ack and those are processed
in the kernel code. As such, they are indeed unknown to hostapd, but
that by itself does not really indicate any issue, i.e., this is
expected behavior.

Jouni Malinen                                            PGP id EFC895FA

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