Corpus for keyctl$read:

Coverage	Program
687	add_key$keyring-add_key$user-keyctl$read
652	add_key$keyring-add_key$keyring-add_key$user-keyctl$read
289	perf_event_open-request_key-keyctl$read
284	add_key$keyring-keyctl$read
252	add_key$keyring-add_key$user-keyctl$read
213	add_key$user-keyctl$read
207	add_key$fscrypt_v1-keyctl$read
77	setresuid-keyctl$setperm-keyctl$read
52	keyctl$read
44	keyctl$read