SYZFAIL: SIGILL
pc-offset:0xffffffff217d1931 pc:0xdeadbeef addr:0x0 code=65537 (errno 9: Bad file descriptor)
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000

FreeBSD/amd64 (ci-freebsd-main-4.us-central1-b.c.syzkaller.internal) (ttyu0)

login: if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
tap2: link state changed to DOWN
pid 747 (getty), jid 0, uid 0: exited on signal 4 (core dumped)
pid 880 (rtsol), jid 0, uid 0: exited on signal 4 (core dumped)
pid 748 (getty), jid 0, uid 0: exited on signal 4 (core dumped)
pid 337 (dhclient), jid 0, uid 0: exited on signal 4 (core dumped)
set $lines = 0
pid 878 (rtsol), jid 0, uid 0: exited on signal 4 (core dumped)
pid 746 (getty), jid 0, uid 0: exited on signal 4 (core dumped)
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
Password:pid 780 (sh), jid 0, uid 0: exited on signal 4 (core dumped)
pid 745 (getty), jid 0, uid 0: exited on signal 4 (core dumped)
pid 770 (sh), jid 0, uid 0: exited on signal 4 (core dumped)
pid 742 (getty), jid 0, uid 0: exited on signal 4 (core dumped)
pid 749 (getty), jid 0, uid 0: exited on signal 4 (core dumped)
pid 738 (sh), jid 0, uid 0: exited on signal 4 (core dumped)
pid 744 (getty), jid 0, uid 0: exited on signal 4 (core dumped)
pid 743 (getty), jid 0, uid 0: exited on signal 4 (core dumped)

Login incorrect
login: if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
show registers
Password:if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000

Login incorrect
login: ps
Password:
Login incorrect
login: show malloc
Password:
Login incorrect
show all tcpcbs/bl