#1151598 linux-image-amd64 6.12.113-1 kernel regression on ath9k_htc modules

Package:
linux-image-amd64
Source:
linux-image-amd64
Description:
Linux for 64-bit PCs (meta-package)
Submitter:
Alexander
Date:
2026-10-22 16:13:02 UTC
Severity:
normal
#1151598#5
Date:
2026-10-22 07:28:51 UTC
From:
To:
After updating the linux-image-amd64 version from 6.12.111-1 to
6.12.113-1, the TP-Link TL-WN722N USB network adapter stopped working;
the ath9k_htc kernel module loads normally.
Here the output of dmesg:

[   66.680661] usb 1-3: new high-speed USB device number 5 using xhci_hcd
[   66.833515] usb 1-3: New USB device found, idVendor=0cf3,
idProduct=9271, bcdDevice= 1.08
[   66.833532] usb 1-3: New USB device strings: Mfr=16, Product=32,
SerialNumber=48
[   66.833540] usb 1-3: Product: USB2.0 WLAN
[   66.833545] usb 1-3: Manufacturer: ATHEROS
[   66.833550] usb 1-3: SerialNumber: 12345
[   66.946563] usbcore: registered new interface driver ath9k_htc
[   67.257582] usb 1-3: ath9k_htc: Transferred FW:
ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[   67.510472] ath9k_htc 1-3:1.0: ath9k_htc: HTC initialized with 33 credits
[   67.813897] ath9k_htc 1-3:1.0: ath9k_htc: FW Version: 1.4
[   67.813909] ath9k_htc 1-3:1.0: FW RMW support: On
[   67.813914] ath: EEPROM regdomain: 0x809c
[   67.813919] ath: EEPROM indicates we should expect a country code
[   67.813922] ath: doing EEPROM country->regdmn map search
[   67.813925] ath: country maps to regdmn code: 0x52
[   67.813928] ath: Country alpha2 being used: CN
[   67.813932] ath: Regpair used: 0x52
[   67.819938] ieee80211 phy1: Atheros AR9271 Rev:1

but when I bring up the interface I receive the error: RTNETLINK
answers: Message too long
No message appears in dmesg.

If I try to remove the module ath9k_rtc with modprobe -r ath9k_rtc I
got a kernel panic.
If is useful I can try to catch it.

I am using Debian 13

#1151598#10
Date:
2026-10-22 16:10:56 UTC
From:
To:
The issue is caused by commit 03ef61d05aa26022327f971b790f07e6bf6e35d6
"wifi: ath9k: reject short WMI command responses" and was fixed in
version 6.12.114 by reverting the commit with commit
892422ca780ad882f8dd4e3603e2616fafa46332
--- [ Upstream commit 90201351a862182bdabfc1ad1c97b1e1b6ed5931 ] This reverts commit 93ce8ea70451e800601bc9444aa33043de15d67b. Mehmet reported that the offending commit breaks his AR9271 USB adapter which uses zero-length replies to commands that don't return a value. Revert the whole thing to restore the functionality. --- I hope the kernel can be updated to version 6.12.114 or the revert to version 6.12.113 can be applied as soon as possible