I've verified the fix in 4.15.0-89.89-generic. The sysrq help message is printed to the kernel log when trying to lift lockdown with the proof- of-concept and when trying to lift lockdown with alt+sysrq+x.
** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861238 Title: Root can lift kernel lockdown via USB/IP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861238/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
