syzbot

SYZFAIL: SIGSEGV
pid 812 (syz-executor), tap3: tun/tap protocol violation, non-controlling process closed last.
ifaddr cache = 0xfffffe0071384600 is deleted
tap3: link state changed to DOWN
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
ktrace write failed, errno 27, tracing stopped for pid 814
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
ifaddr cache = 0xfffffe0071384900 is deleted
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
ktrace write failed, errno 27, tracing stopped for pid 758
ktrace write failed, errno 27, tracing stopped for pid 760
pid 758 (sshd), jid 0, uid 0: exited on signal 11 (no core dump - sugid process denied by kern.sugid_coredump)
Connection to 10.128.1.156 closed by remote host.
tap0: link state changed to DOWN
ktrace write failed, errno 27, tracing stopped for pid 681
ktrace write failed, errno 27, tracing stopped for pid 737
ktrace write failed, errno 27, tracing stopped for pid 736
pid 736 (sleep), jid 0, uid 0: exited on signal 11 (no core dump - other error)
ktrace write failed, errno 27, tracing stopped for pid 735
ktrace write failed, errno 27, tracing stopped for pid 685
pid 681 (sshd), jid 0, uid 0: exited on signal 11 (no core dump - sugid process denied by kern.sugid_coredump)
pid 982 (syz-executor), tap2: tun/tap protocol violation, non-controlling process closed last.
ifaddr cache = 0xfffffe0058088780 is deleted
tap2: link state changed to DOWN
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3000
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3000
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3000
pid 737 (logger), jid 0, uid 0: exited on signal 11 (core dumped)
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c2c00
pid 735 (sh), jid 0, uid 0: exited on signal 11 (core dumped)
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741400
pid 685 (cron), jid 0, uid 0: exited on signal 11 (core dumped)
pid 760 (csh), jid 0, uid 0: exited on signal 11 (core dumped)
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3000
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3000
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3000
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe00077c3400
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800
if_delmulti_locked: detaching ifnet instance 0xfffffe0058741800