Corpus for keyctl$restrict_keyring:

Coverage	Program
406	add_key$fscrypt_v1-keyctl$restrict_keyring
353	perf_event_open-add_key$keyring-add_key$keyring-keyctl$restrict_keyring
301	add_key$keyring-add_key$keyring-keyctl$restrict_keyring-add_key$keyring
293	add_key$keyring-add_key$keyring-keyctl$restrict_keyring
276	sendmmsg$inet6-perf_event_open-add_key$keyring-keyctl$restrict_keyring-syz_genetlink_get_family_id$netlbl_calipso
253	keyctl$restrict_keyring