aireplay-ng w/ rtw88_8821cu

I’m writing some deauthing code and could use a hand. My setup is Linux version is 6.15 and I’m using the driver for the RTL8821CU in the kernel (RTW88)

I have two main problems first is I’m seeing https://pastebin.com/raw/pTQgkr9r

It seems like kernel driver isn’t reporting the correct channel back. If I set the channel with…

iw dev wlan1 set channel 1 

I still get the same error. I’m just forcing to ignore whatever the driver is reporting back.

https://pastebin.com/raw/LXdpb1u8

This seems to work (I’m just calling out the first error, in case it’s related)

My second error is as you can see above, it’s just sending 2x deauth packets and then hanging indefinitely. I don’t see a verbose flag in aireplay-ng, so I’m not sure what to do now.

Does anyone have experience with this chipset/deauthing? If it’s not obvious I’m new to this so could use any advice. Thanks

submitted by /u/Machinehum
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July 27, 2025
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