mt7921u driver is busy: failed to transmit proberesponse

[karimHI]

anyway to fix this error while using an mt7921u usb wifi adapter on openwrt

everything on the latest version (openwrt , hcxdumptool , and mediatek firmware and driver )

18:06:04 4 driver is busy: failed to transmit proberesponse 18:06:04 4 driver is busy: failed to transmit proberesponse

`root@OpenWrt:~# hcxdumptool -i wlan0 --enable_status=15 --error_max=999999999999 99999 -o haha2.pcapng initialization of hcxdumptool 6.2.4... interface is already in monitor mode, skipping ioctl(SIOCSIWMODE) and ioctl(SIOCSIFFLAGS) system calls

start capturing (stop with ctrl+c) NMEA 0183 SENTENCE........: N/A INTERFACE NAME............: wlan0 INTERFACE PROTOCOL........: IEEE 802.11 INTERFACE TX POWER........: 3 dBm (lowest value reported by the device) INTERFACE HARDWARE MAC....: 90de80d696db (not used for the attack) INTERFACE VIRTUAL MAC.....: 90de80d696db (not used for the attack) DRIVER....................: mt7921u DRIVER VERSION............: 5.10.176 DRIVER FIRMWARE VERSION...: N/A openSSL version...........: 1.1 ERRORMAX..................: 2147483647 errors BPF code blocks...........: 0 FILTERLIST ACCESS POINT...: 0 entries FILTERLIST CLIENT.........: 0 entries FILTERMODE................: unused WEAK CANDIDATE............: 12345678 ESSID list................: 0 entries ACCESS POINT (ROGUE)......: 146e0a544f36 (BROADCAST HIDDEN used for the attack) ACCESS POINT (ROGUE)......: 146e0a544f37 (BROADCAST OPEN used for the attack) ACCESS POINT (ROGUE)......: 146e0a544f38 (used for the attack and incremented on every new client) CLIENT (ROGUE)............: b4e1eba21f2d EAPOLTIMEOUT..............: 20000 usec EAPOLEAPTIMEOUT...........: 2500000 usec REPLAYCOUNT...............: 62113 ANONCE....................: 0da8e210c87c410481f5c8b868171f04e263120fac124373ba585bb3b5a72f7b SNONCE....................: e7211afef8e67e95d60ef0dd34ba54841c1cd9ab7939576498da0dfc15606674

18:05:53 1 ffffffffffff c4ea1d1f432f * [BEACON] 18:05:53 1 ffffffffffff f0b4d214b2b2 ** [BEACON] 18:05:53 1 ffffffffffff bcf88b6253bc ** [BEACON] 18:05:53 1 ffffffffffff 505d7abbc80a ** [BEACON] 18:05:53 1 ffffffffffff 14007df9afc8 ***** [BEACON] 18:05:53 1 ffffffffffff a0092e954762 * [BEACON] 18:05:53 1 ffffffffffff 14007df6434a **** [BEACON] 18:05:53 1 ffffffffffff 4033062f435f **** [BEACON] 18:05:53 1 ffffffffffff 54ce82b1d8ce **** [BEACON] 18:05:53 1 ffffffffffff 56ce82b1d8ce [HIDDEN BEACON] 18:05:54 1 ffffffffffff 90916478a563 * [BEACON] 18:05:54 1 ffffffffffff 92916478a563 [HIDDEN BEACON] 18:05:54 1 ffffffffffff 729c2789a2e8 **2 [BEACON] 18:05:54 1 ffffffffffff 42e469b25756 ****[BEACON] 18:05:54 1 ffffffffffff 98482790abd7 ***** [BEACON] 18:05:54 1 88b5ffce31de 729c2789a2e8 **** [PROBERESPONSE] 18:05:55 1 driver is busy: failed to transmit acknowledgement 18:05:56 2 driver is busy: failed to transmit acknowledgement 18:05:56 2 driver is busy: failed to transmit acknowledgement 18:05:57 2 driver is busy: failed to transmit acknowledgement 18:05:57 2 driver is busy: failed to transmit acknowledgement 18:05:58 2 driver is busy: failed to transmit acknowledgement 18:05:59 2 driver is busy: failed to transmit proberesponse 18:05:59 2 167ca3e141fd f0b4d214b2b2 ** [PROBERESPONSE] 18:06:00 3 ffffffffffff 14007df60534 ERIN [BEACON] 18:06:01 3 aa36d1ed2179 bcf88b6253bc **** [PROBERESPONSE] 18:06:01 3 driver is busy: failed to transmit proberesponse 18:06:02 3 driver is busy: failed to transmit proberesponse 18:06:02 3 driver is busy: failed to transmit proberesponse 18:06:03 3 driver is busy: failed to transmit proberesponse 18:06:03 3 driver is busy: failed to transmit proberesponse 18:06:04 4 driver is busy: failed to transmit proberesponse 18:06:04 4 driver is busy: failed to transmit proberesponse 18:06:05 4 driver is busy: failed to transmit reassociationrequest 18:06:05 4 driver is busy: failed to transmit deauthentication`

[ZerBea]

The mt7921u driver is broken: https://github.com/openwrt/mt76/issues/839 https://github.com/morrownr/USB-WiFi/discussions/260#discussioncomment-7567057

BTW: hcxdumptool is v6.2.4 is outdated. Please use v6.3.2 or latest git head.

All versions until 6.2.9 use wireless extensions. This will not work on latest drivers any longer. Starting with version 6.3.0 hcxdumptool moved completely to NETLINK. Please read changelog and help, because several options changed, too.

[ZerBea]

We have to wait for a fix. There is nothing I can do.

Please report driver problems https://github.com/openwrt/mt76/issues/839

Closed this report, because it is related to the driver.

[ZerBea]

Please update to latest git head of hcxdumptool. I pushed a workaround: https://github.com/ZerBea/hcxdumptool/commit/8d3f24e5a10ebdcc75211ae9214ee30ff9e4b517

Now it should work (until the driver get a fix): https://github.com/ZerBea/hcxdumptool/discussions/361#discussioncomment-7567045

[karimHI]

it's working tnx but we can no longer target APs on this latest update or what ?

[ZerBea]

The entire filtering is now done by a Berkeley Packet Filter (BPF). The entire filter process of hcxpcngtool is now controlled by this filter. How to add a filter is explained in -h and --help (does include useful links how to create such a filter), A good example is the test environment BPF as described here: https://github.com/ZerBea/hcxdumptool/discussions/361 more is here: https://github.com/ZerBea/hcxdumptool/discussions/343