Comment 4 for bug 2065405

For information, ubuntu-24.04 has updated Linux kernel from 6.5.0-28 to 6.8.0-31

The problem reported is only with newer 6.8.0-31, and also failure to reach a working system is only with new kernel.

The previous Linux kernel is still available in the Grub menu, and choosing "6.5.0-28-generic" to boot does bring a working system, with the only line containing "cups" in dmesg being:
[ 5.404257] audit: type=1400 audit(1715587151.264:47): apparmor="DENIED" operation="capable" class="cap" profile="/usr/sbin/cupsd" pid=1039 comm="cupsd" capability=12 capname="net_admin"