Hello Matthew, With commit 000d388ed3bbed ("security: Add a static lockdown policy LSM") you added the following line to security/lockdown/lockdown.c: pr_notice("Kernel is locked down from %s; see man kernel_lockdown.7\n" The manpage is not available on https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git. I found a rather outdated draft by David here: https://lwn.net/Articles/735564/ Is anybody working on it? Best regards Heinrich