On Mon, 2019-06-24 at 17:02 -0700, Matthew Garrett wrote: > On Mon, Jun 24, 2019 at 2:27 PM Mimi Zohar <zohar@xxxxxxxxxxxxx> wrote: > > > I agree with Dave. There should be a stub lockdown function to > > prevent enforcing lockdown when it isn't enabled. > > Sorry, when what isn't enabled? If no LSMs are enforcing lockdown then > the check will return 0. The goal here is for distributions to be able > to ship a kernel that has CONFIG_KEXEC_SIG=y, CONFIG_KEXEC_SIG_FORCE=n > and at runtime be able to enforce a policy that requires signatures on > kexec payloads. Never mind, the call can't be moved earlier.
