Corpus for fchdir:

Coverage	Program
5243	pipe-syz_genetlink_get_family_id$nl80211-sendmsg$NL80211_CMD_LEAVE_IBSS-perf_event_open-syz_mount_image$vfat-mkdirat-socket$inet6_udp-connect$inet6-sendmmsg$inet6-fchdir-fork-ptrace
2009	close_range-syz_mount_image$tmpfs-fchdir
1744	perf_event_open-openat$bsg-socket$inet_udp-ioctl$sock_inet_SIOCADDRT-setsockopt$inet_int-ioctl$sock_inet_SIOCDELRT-ioctl$NS_GET_OWNER_UID-fchdir-write
649	seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-openat$bsg-fchdir
192	ioctl$TCSETAW-syz_io_uring_setup-perf_event_open-perf_event_open-openat$bsg-fchdir-setsockopt$inet_int-ioctl$SNDRV_TIMER_IOCTL_GPARAMS
150	perf_event_open-openat$bsg-fchdir
111	prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_mount_image$tmpfs-fchdir