Corpus for add_key$user:

Coverage	Program
842	ftruncate-socket$nl_netfilter-write-syz_mount_image$ext4-ioctl$EXT4_IOC_MOVE_EXT-add_key$fscrypt_v1-keyctl$chown-add_key$keyring-add_key$fscrypt_v1-keyctl$KEYCTL_RESTRICT_KEYRING-add_key$fscrypt_v1-keyctl$KEYCTL_MOVE-add_key$keyring-request_key-add_key$user-keyctl$KEYCTL_RESTRICT_KEYRING-perf_event_open-clone3
801	perf_event_open-add_key$keyring-add_key$user-keyctl$KEYCTL_RESTRICT_KEYRING