SYZFAIL: SIGSEGV
pc-offset:0xffffffff217d1931 pc:0xdeadbeef addr:0x0 code=65537 (errno 9: Bad file descriptor)


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

login: vnode_pager_putpages: zero-length write at 0 resid 14434
0xfffffe0077b88000: type VREG state VSTATE_CONSTRUCTED op 0xffffffff8371bda0
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45800
Connection to 10.128.1.92 closed by remote host.
    usecount 6, writecount 5, refcount 3 seqc users 0if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45800
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45800

    hold count flags ()
    flags (VIRF_PGREAD|VMP_LAZYLIST)
    v_object 0xfffffe005414b000 ref 1 pages 4 cleanbuf 1 dirtybuf 0
    lock type ufs: EXCL by thread 0xfffffe005412c000 (pid 1097, syz-executor, tid 100487)
	nlink=1, effnlink=1, size=14434, extsize 0
	generation=508fb35, uid=0, gid=0, flags=0x40008<modified>
	ino 99, on dev gpt/rootfs
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
if_delmulti_locked: detaching ifnet instance 0xfffffe0058574800
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a46000

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

login: set $lines = 0
Password:pid 1035 (sh), jid 0, uid 0: exited on signal 11 (core dumped)
pid 743 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 334 (dhclient), jid 0, uid 0: exited on signal 11 (core dumped)
pid 735 (sh), jid 0, uid 0: exited on signal 11 (core dumped)
pid 744 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 337 (dhclient), jid 0, uid 0: exited on signal 11 (core dumped)
pid 739 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
pid 745 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000
if_delmulti_locked: detaching ifnet instance 0xfffffe0058575000

Login incorrectpid 742 (getty), jid 0, uid 0: exited on signal 11 (core dumped)

login: pid 740 (getty), jid 0, uid 0: exited on signal 11 (core dumped)
show registers
Password:if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000
if_delmulti_locked: detaching ifnet instance 0xfffffe0007a45000

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