This is an upstream behavior under lockdown "confedentiality" mode:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ccbd54ff54e8b1880456b81c4aea352ebe208843 Possibly there's an argument that the information disclosure isn't severe enough that it needs to be restricted by default under secure boot. Unfortunately the patch description isn't specific about what information is exposed to help assess the impact (e.g. kernel addresses vs key information). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1862708 Title: tracing doesn't work on focal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1862708/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
