[Corrected Matthew Garrett's email address. Cc'ed Bruno Meneguele] On Mon, 2017-10-30 at 17:00 +0000, David Howells wrote: > Mimi Zohar <[email protected]> wrote: > > > This kernel_is_locked_down() check is being called for both the > > original and new module_load syscalls. We need to be able > > differentiate them. This is fine for the original syscall, but for > > the new syscall we would need an additional IMA check - > > !is_ima_appraise_enabled(). > > IMA can only be used with finit_module()?
Yes, without the file descriptor, IMA-appraisal can't access the xattrs. You should really look at Bruno's patches, which are in my next branch: 8168913c50d5 "ima: check signature enforcement against cmdline param instead of CONFIG" 404090509894 module: export module signature enforcement status Can we get an Ack on the module one? Mimi
