Corpus for add_key:

Coverage	Program
1223	socket$netlink-syz_mount_image$vfat-chdir-perf_event_open-add_key-accept$inet6-add_key$keyring-bind$inet-add_key-openat-utimes
922	ioctl$BTRFS_IOC_INO_LOOKUP_USER-add_key$keyring-add_key
882	add_key$keyring-add_key$fscrypt_v1-add_key
831	add_key$keyring-add_key
827	setreuid-add_key$keyring-add_key
727	perf_event_open-add_key$keyring-bind$inet-add_key$keyring-add_key-keyctl$search-add_key
590	add_key
484	ioctl$sock_inet6_SIOCDIFADDR-add_key
468	add_key
460	io_setup-add_key
457	add_key
457	perf_event_open-add_key
454	add_key
451	perf_event_open-add_key$keyring-add_key-add_key$user-add_key-perf_event_open
337	add_key$keyring-add_key
144	perf_event_open-socket$netlink-sendmsg$nl_generic-close_range-getsockopt$IP_VS_SO_GET_DESTS-fcntl$addseals-syz_open_dev$tty1-ioctl$BTRFS_IOC_BALANCE_PROGRESS-sendmsg$NL80211_CMD_LEAVE_IBSS-add_key$keyring-syz_io_uring_submit-add_key$keyring-add_key$keyring-add_key$keyring-add_key$keyring-request_key-add_key-add_key$keyring-add_key-unshare