Corpus for keyctl$restrict_keyring:

Coverage	Program
1664	perf_event_open-ioctl$BTRFS_IOC_QGROUP_ASSIGN-preadv-ioctl$FS_IOC_FSSETXATTR-perf_event_open-syz_open_dev$sg-perf_event_open-add_key$keyring-ioctl$BLKTRACESETUP-ioctl$BLKTRACETEARDOWN-openat-connect$inet6-add_key$keyring-keyctl$restrict_keyring-add_key$keyring-add_key$keyring
368	add_key$keyring-keyctl$restrict_keyring
264	perf_event_open-add_key$keyring-keyctl$restrict_keyring
236	add_key$keyring-keyctl$restrict_keyring-keyctl$restrict_keyring
219	add_key$keyring-keyctl$restrict_keyring