SYZFAIL: tun: can't open device
device=/dev/tap1 (errno 16: Device busy)


FreeBSD/amd64 (ci-freebsd-main-8.c.syzkaller.internal) (ttyu0)

login: Jul 17 12:56:19 ci-freebsd-main-8 dhclient[10938]: Interface tap0 is down, dhclient exiting