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

login: 

FreeBSD/amd64 (ci-freebsd-main-7.c.syzkaller.internal) (ttyu0)

login: if_delmulti_locked: detaching ifnet instance 0xfffff80004e29000
if_delmulti_locked: detaching ifnet instance 0xfffff80004e24000
Mar 23 05:07:26 ci-freebsd-main-7 dhclient[10886]: Interface tap1 is down, dhclient exiting
if_delmulti_locked: detaching ifnet instance 0xfffff80004e29000
if_delmulti_locked: detaching ifnet instance 0xfffff80004e29000
if_delmulti_locked: detaching ifnet instance 0xfffff80004e24000
if_delmulti_locked: detaching ifnet instance 0xfffff80004e24000
Mar 23 05:07:26 ci-freebsd-main-7 dhclient[10886]: connection closed
if_delmulti_locked: detaching ifnet instance 0xfffff80004e29800
if_delmulti_locked: detaching ifnet instance 0xfffff80004e29800
if_delmulti_locked: detaching ifnet instance 0xfffff80004e29800
Mar 23 05:07:26 ci-freebsd-main-7 dhclient[10886]: exiting.
Ma