Corpus for dup:

Coverage	Program
854	perf_event_open-socket$netlink-getpgrp-pidfd_open-dup-process_madvise-sendmsg$NL80211_CMD_STOP_AP-ioctl$AUTOFS_IOC_EXPIRE_MULTI-sendmsg$nl_generic-syz_init_net_socket$nl_generic-io_uring_register$IORING_REGISTER_EVENTFD_ASYNC
737	perf_event_open-socket$inet_tcp-ioctl$EXT4_IOC_CLEAR_ES_CACHE-socketpair$unix-sendto$unix-bind$unix-dup-recvmmsg-ioctl$BTRFS_IOC_SNAP_CREATE_V2-socketpair
121	perf_event_open-dup
120	perf_event_open-dup
83	perf_event_open-openat$rfkill-write$rfkill-syz_io_uring_submit-dup-perf_event_open-openat$rfkill
67	perf_event_open-setrlimit-dup