Linux 5.4.0-105 breaks Bluetooth and makes system too slow to use

[Julien Villemure]

Currently running this kernel which is working fine:

Linux 5.4.0-104-generic #118-Ubuntu SMP Wed Mar 2 19:02:41 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Immediately after installing the latest kernel update to Linux 5.4.0-105 and rebooting, the following error is printed endlessly to console multiple times per second by Bluetooth hci:

    Malicious advertising data. Stopping processing

I don't have the exact log because my system was unusable beyond reading the console and I had to force reboot, but that was definitely the message that was printed.

I have no Bluetooth devices powered on when booting (just my laptop's adapter I guess).

The system is also too slow to do anything, I have to force reboot.

Reverted to kernel 5.4.0-104 and problems are gone.

See the lspci-vnvn.log but keep in mind that I generated it on the working 5.4.0-104 kernel, as it was impossible to do anything on 5.4.0-105.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1966090

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Julien Villemure (teech)]

apport isn't installed, and installing it would uninstall systemd-coredump. I am hoping the attached output of `lspci -vnvn` is enough. Please let me know if it isn't.

[Julien Villemure (teech)]

Fixed in 5.4.0-107