Djalal Harouni [off-list ref] writes:

When value is (1), task must have CAP_SYS_MODULE to be able to trigger a
module auto-load operation, or CAP_NET_ADMIN for modules with a
'netdev-%s' alias.

Sorry, the magic 'netdev-' prefix is a crawling horror.  To do this
properly, you need to hand the capability (if any) from the
request_module() call.  Probably by adding a new request_module_cap and
making request_module() call that, then fixing up the callers.

Cheers,
Rusty.