SYZFAIL: tun: can't open device
device=/dev/tap0 (errno 16: Device busy)


FreeBSD/amd64 (ci-freebsd-main-1.c.syzkaller.internal) (ttyu0)

login: Aug 23 00:33:12 ci-freebsd-main-1 dhclient[20604]: Interface tap2 is down, dhclient exiting
Aug 23 00:33:12 ci-freebsd-main-1 dhclient[20604]: connection closed
Aug 23 00:33:12 ci-freebsd-main-1 dhclient[20604]: exiting.
if_delmulti_locked: detaching ifnet instance 0xfffffe009e994800