Looks like the active kernel on your system is still 5.4.0-81, but the installed kernel is already 5.4.0.83. So just a reboot is needed to get the recently installed kernel 5.4.0-83 active and running.
5.4.0.83 should have the patches in (I'm pretty sure, just need to update my clone to be absolutely sure.)
It should have been already in 5.4.0-82, but that got superseded by 83 on short notice due to security reasons (it incl. several CVE fixes).
(But I'm still wondering why this is not referenced [with pointing to this LP bug number] in the changelog ...)
Thanks for sharing the output.
Looks like the active kernel on your system is still 5.4.0-81, but the installed kernel is already 5.4.0.83. So just a reboot is needed to get the recently installed kernel 5.4.0-83 active and running.
5.4.0.83 should have the patches in (I'm pretty sure, just need to update my clone to be absolutely sure.)
It should have been already in 5.4.0-82, but that got superseded by 83 on short notice due to security reasons (it incl. several CVE fixes).
(But I'm still wondering why this is not referenced [with pointing to this LP bug number] in the changelog ...)