I confirm the hirsute version fixes the issue. I created https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1915181/ recently without having seen this bug report, and I'm pretty confident it's the same issue.
I reinstalled groovy on a VM, confirmed the bug occurred (it did), rebuilt 2.3.3op1 from hirsute and installed it. The problem no longer occurs after that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1846334 Title: cupsd assert failure: free(): invalid pointer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1846334/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs