Corpus for mknodat$null:

Coverage	Program
4673	syz_init_net_socket$nl_generic-ioctl$sock_SIOCGIFINDEX_802154-sendmsg$IEEE802154_ADD_IFACE-perf_event_open-sched_setaffinity-perf_event_open-pkey_mprotect-creat-ioctl$EXT4_IOC_GROUP_ADD-ioctl$LOOP_CTL_ADD-fsetxattr-ioctl$BTRFS_IOC_SUBVOL_CREATE-mknodat$null-ioctl$EXT4_IOC_CHECKPOINT
4133	prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_mount_image$tmpfs-prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-mknodat$null-fchownat-syz_mount_image$nfs4-fork-getsockopt$sock_cred-setuid-socket$nl_xfrm-getsockopt$sock_cred-setuid-stat-fork-tkill
481	syz_mount_image$tmpfs-socket$nl_xfrm-getsockopt$sock_cred-setuid-mknodat$null
297	syz_mount_image$tmpfs-symlinkat-mknodat$null