Corpus for openat$null:

Coverage	Program
4648	perf_event_open-syz_io_uring_setup-syz_io_uring_submit-mmap$IORING_OFF_SQ_RING-syz_mount_image$nfs4-mmap$IORING_OFF_CQ_RING-syz_io_uring_setup-syz_io_uring_submit-io_uring_enter-socket$inet6_udplite-openat$null
718	openat$null
553	socket$inet6_icmp-syz_open_dev$usbmon-openat$null-write$P9_RVERSION-openat$null