Corpus for write$tun:

Coverage	Program
1574	perf_event_open-openat$ptmx-syz_open_dev$sg-dup2-write$tun
1091	openat$sysfs-write$tun
300	perf_event_open-openat$sysfs-write$tun
291	perf_event_open-openat$sysfs-write$tun
228	openat$sysfs-memfd_secret-write$tun
194	pipe-socketpair$nbd-splice-write$tun
79	openat$ptmx-syz_open_dev$sg-newfstatat-setresuid-dup2-write$tun