[$] Hash-based module integrity for reproducible distributions

We last looked in on hash-based integritychecking for kernel modules just over a year and half ago. Since that time,the patchset has undergone multiple revisions. At the 2026 Linux Plumbers Conference(LPC), Thomas Weischuh described the need for kernel-module integrityguarantees while still providing reproducible builds, how his patches implement that, and some ideas for possiblefurther work.