kernel: protection fault trap, code=0
Stopped at pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
pfi_ifhead_RB_REMOVE(ffffffff828f2268,ffff800000b58a00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80
pfi_detach_ifgroup(ffff800000b44e80) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline]
pfi_detach_ifgroup(ffff800000b44e80) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304
if_delgroup(ffff800000b17000,ffff800000b44e80) at if_delgroup+0x193 sys/net/if.c:2711
if_detach(ffff800000b17000) at if_detach+0x1cb sys/net/if.c:1049
tun_clone_destroy(ffff800000b17000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325
if_clone_destroy(ffff8000222a4c20) at if_clone_destroy+0x136 sys/net/if.c:1212
tun_dev_close(5d01,7) at tun_dev_close+0x140 sys/net/if_tun.c:479
spec_close(ffff8000222a4cf0) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd806e2906a8,7,fffffd807f7b7720,ffff8000234bd270) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177
vn_closefile(fffffd806a1f6e58,ffff8000234bd270) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806a1f6e58,ffff8000234bd270) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806a1f6e58,ffff8000234bd270) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd806a1f6e58,ffff8000234bd270) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff8000234bd270) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff8000234bd270,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200
sys_exit(ffff8000234bd270,ffff8000222a4f80,ffff8000222a4fd0) at sys_exit+0x16 sys/kern/kern_exit.c:96
syscall(ffff8000222a5050) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000222a5050) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc2780, count: -17
ddb{0}> show registers
rdi 0xffffffff828f2268 pfi_ifs
rsi 0xffff800000b58a00
rbp 0xffff8000222a4a80
rbx 0xdeadbeefdeadbeef
rdx 0
rcx 0xffff800000b44000
rax 0xffff800000b58a10
r8 0xf8
r9 0x8080808080808080
r10 0x9992f2322a28b2d7
r11 0x952a0131f60ae24e
r12 0xdeadbeefdeadbeef
r13 0xffff800000afbe60
r14 0xffff800000b58a00
r15 0xffffffff828f2268 pfi_ifs
rip 0xffffffff81840220 pfi_ifhead_RB_REMOVE+0x50
cs 0x8
rflags 0x10282 __ALIGN_SIZE+0xf282
rsp 0xffff8000222a4a20
ss 0x10
pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx
ddb{0}> show proc
PROC (syz-executor.1) pid=128854 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=32, usrpri=77, nice=20
forw=0xffffffffffffffff, list=0xffff8000234bcd30,0xffffffff828c90e0
process=0xffff800024531968 user=0xffff8000222a0000, vmspace=0xfffffd806619bb98
estcpu=27, cpticks=0, pctcpu=0.6
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
81927 128629 0 0 3 0x14200 bored sosplice
85658 10119 61006 0 3 0x82 nanoslp syz-executor.0
18138 492666 0 0 3 0x14280 nfsidl nfsio
7958 228887 0 0 3 0x14280 nfsidl nfsio
86113 512276 0 0 3 0x14280 nfsidl nfsio
92523 87040 0 0 3 0x14280 nfsidl nfsio
66661 330998 0 0 3 0x14280 nfsidl nfsio
44682 134489 0 0 3 0x14280 nfsidl nfsio
44070 32724 0 0 3 0x14280 nfsidl nfsio
1643 280579 0 0 3 0x14280 nfsidl nfsio
32318 476084 0 0 3 0x14280 nfsidl nfsio
17062 256488 0 0 3 0x14280 nfsidl nfsio
88155 222787 0 0 3 0x14280 nfsidl nfsio
21281 486061 0 0 3 0x14280 nfsidl nfsio
47403 394116 0 0 3 0x14280 nfsidl nfsio
90966 244385 0 0 3 0x14280 nfsidl nfsio
88719 186703 0 0 3 0x14280 nfsidl nfsio
28787 284242 0 0 3 0x14280 nfsidl nfsio
63389 350108 0 0 3 0x14280 nfsidl nfsio
20587 9902 0 0 3 0x14280 nfsidl nfsio
53080 457042 0 0 3 0x14280 nfsidl nfsio
89697 277253 0 0 3 0x14280 nfsidl nfsio
61006 381663 44084 0 3 0x82 thrsleep syz-fuzzer
61006 389935 44084 0 3 0x4000082 thrsleep syz-fuzzer
61006 100050 44084 0 3 0x4000082 thrsleep syz-fuzzer
61006 379930 44084 0 3 0x4000082 thrsleep syz-fuzzer
61006 506789 44084 0 3 0x4000082 thrsleep syz-fuzzer
61006 265507 44084 0 3 0x4000082 kqread syz-fuzzer
61006 174236 44084 0 3 0x4000082 thrsleep syz-fuzzer
61006 206134 44084 0 3 0x4000082 thrsleep syz-fuzzer
44084 302010 43884 0 3 0x10008a sigsusp ksh
43884 87487 62028 0 3 0x92 select sshd
57992 491611 1 0 3 0x100083 ttyin getty
62028 247680 1 0 3 0x80 select sshd
10616 185994 22650 74 3 0x100092 bpf pflogd
22650 270964 1 0 3 0x80 netio pflogd
76316 490854 34840 73 3 0x100090 kqread syslogd
34840 382355 1 0 3 0x100082 netio syslogd
65134 227588 1 77 7 0x100090 dhclient
50639 246665 1 0 3 0x80 poll dhclient
7538 383033 0 0 3 0x14200 bored smr
3054 515480 0 0 3 0x14200 pgzero zerothread
94002 427653 0 0 3 0x14200 aiodoned aiodoned
75841 469263 0 0 3 0x14200 syncer update
11882 395379 0 0 3 0x14200 cleaner cleaner
18924 111861 0 0 3 0x14200 reaper reaper
73705 97874 0 0 3 0x14200 pgdaemon pagedaemon
16761 406598 0 0 3 0x14200 bored crynlk
4165 288499 0 0 3 0x14200 bored crypto
45808 276 0 0 3 0x14200 bored viomb
84478 157105 0 0 3 0x40014200 acpi0 acpi0
80998 228857 0 0 3 0x40014200 idle1
89331 293833 0 0 3 0x14200 bored softnet
8221 435590 0 0 2 0x14200 systqmp
7630 90945 0 0 3 0x14200 bored systq
88263 488609 0 0 3 0x40014200 bored softclock
84268 328906 0 0 3 0x40014200 idle0
1 514625 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9554 6448K 7157K 78643K 14893 0
pcb 13 8K 8K 78643K 157 0
rtable 86 3K 4K 78643K 645 0
ifaddr 77 14K 15K 78643K 228 0
sysctl 2 0K 0K 78643K 2 0
counters 44 34K 34K 78643K 106 0
ioctlops 0 0K 4K 78643K 1539 0
iov 0 0K 12K 78643K 67 0
mount 1 1K 1K 78643K 1 0
vnodes 1226 77K 77K 78643K 2878 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 21 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 45 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12598 0
file desc 4 9K 25K 78643K 4692 0
sigio 0 0K 0K 78643K 70 0
proc 72 63K 96K 78643K 790 0
subproc 23 1K 2K 78643K 68 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 300 0
in_multi 22 1K 2K 78643K 241 0
ether_multi 1 0K 0K 78643K 69 0
mrt 0 0K 0K 78643K 16 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 67 307K 307K 78643K 67 0
exec 0 0K 2K 78643K 499 0
pfkey data 0 0K 0K 78643K 5 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 156 155K 156K 78643K 11579 0
UVM aobj 37 2K 2K 78643K 37 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 153 0
NDP 15 0K 0K 78643K 54 0
temp 146 3983K 4053K 78643K 24803 0
kqueue 3 4K 16K 78643K 207 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 24 0 20 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 120 82 0 80 1 0 1 1 0 8 0
rtentry 112 109 0 76 2 0 2 2 0 8 0
unpcb 120 670 0 660 1 0 1 1 0 8 0
syncache 296 54 0 54 4 4 0 1 0 8 0
tcpqe 32 88 0 88 4 4 0 1 0 8 0
tcpcb 736 741 0 731 13 11 2 4 0 8 1
inpcb 304 1621 0 1614 9 7 2 2 0 8 1
nd6 48 12 0 9 1 0 1 1 0 8 0
pkpcb 40 15 0 15 2 2 0 1 0 8 0
kcovpl 48 4 0 3 1 0 1 1 0 8 0
ppxss 1128 18 0 18 2 2 0 1 0 8 0
pffrag 232 3 0 3 1 1 0 1 0 482 0
pffrnode 88 3 0 3 1 1 0 1 0 8 0
pffrent 40 5 0 5 1 1 0 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 36 0 33 1 0 1 1 0 8 0
pfstkey 112 36 0 33 1 0 1 1 0 8 0
pfstate 328 36 0 33 3 2 1 2 0 8 0
pfrule 1360 30 0 24 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 311 0 120 13 0 13 13 0 8 0
art_table 32 312 0 120 2 0 2 2 0 8 0
art_node 16 108 0 71 1 0 1 1 0 8 0
sysvmsgpl 40 40 0 0 1 0 1 1 0 8 0
semupl 112 6 0 6 1 1 0 1 0 8 0
semapl 112 37 0 27 1 0 1 1 0 8 0
shmpl 112 34 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 7025 0 5619 90 1 89 89 0 8 0
ffsino 272 7025 0 5619 95 0 95 95 0 8 0
nchpl 144 12274 0 10689 60 0 60 60 0 8 0
uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 30923 0 30923 1 0 1 1 0 8 1
percpumem 16 64 0 31 1 0 1 1 0 8 0
vcpupl 1984 10 0 0 2 0 2 2 0 8 0
vmpool 560 18 0 8 1 0 1 1 0 8 0
scxspl 216 37537 0 37537 9 8 1 8 0 8 1
plimitpl 152 175 0 167 1 0 1 1 0 8 0
sigapl 424 4923 0 4871 7 0 7 7 0 8 0
futexpl 56 29424 0 29424 1 0 1 1 0 8 1
knotepl 112 333 0 319 1 0 1 1 0 8 0
kqueuepl 168 2359 0 2357 1 0 1 1 0 8 0
pipepl 336 181 0 173 7 5 2 2 0 8 1
fdescpl 496 4886 0 4871 3 0 3 3 0 8 0
filepl 152 15033 0 14946 7 2 5 6 0 8 1
lockfpl 104 398 0 397 1 0 1 1 0 8 0
lockfspl 48 110 0 109 1 0 1 1 0 8 0
sessionpl 144 20 0 9 1 0 1 1 0 8 0
pgrppl 48 35 0 24 1 0 1 1 0 8 0
ucredpl 96 2035 0 2026 1 0 1 1 0 8 0
zombiepl 144 4872 0 4870 1 0 1 1 0 8 0
processpl 1080 4923 0 4870 4 0 4 4 0 8 0
procpl 672 10610 0 10550 6 0 6 6 0 8 0
sosppl 168 28 0 28 4 4 0 1 0 8 0
sockpl 432 2388 0 2369 12 8 4 5 0 8 1
mcl64k 65536 13 0 0 2 0 2 2 0 8 0
mcl16k 16384 4 0 0 1 0 1 1 0 8 0
mcl12k 12288 5 0 0 1 0 1 1 0 8 0
mcl9k 9216 6 0 0 1 0 1 1 0 8 0
mcl8k 8192 13 0 0 2 0 2 2 0 8 0
mcl4k 4096 18 0 0 3 0 3 3 0 8 0
mcl2k2 2112 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 221 0 0 18 0 18 18 0 8 0
mtagpl 96 328 0 0 8 0 8 8 0 8 0
mbufpl 256 935 0 0 54 1 53 53 0 8 0
bufpl 280 9500 0 3251 447 0 447 447 0 8 0
anonpl 24 339376 0 332920 69 23 46 49 0 186 0
amapchunkpl 152 18213 0 17998 16 7 9 12 0 158 0
amappl16 200 14276 0 14014 24 9 15 15 0 8 0
amappl15 192 6 0 4 1 0 1 1 0 8 0
amappl14 184 28 0 23 1 0 1 1 0 8 0
amappl13 176 2388 0 2385 1 0 1 1 0 8 0
amappl12 168 2 0 1 2 1 1 1 0 8 0
amappl11 160 1719 0 1700 1 0 1 1 0 8 0
amappl10 152 18 0 12 1 0 1 1 0 8 0
amappl9 144 602 0 601 2 1 1 1 0 8 0
amappl8 136 349 0 298 2 0 2 2 0 8 0
amappl7 128 851 0 843 1 0 1 1 0 8 0
amappl6 120 78 0 65 1 0 1 1 0 8 0
amappl5 112 7237 0 7219 1 0 1 1 0 8 0
amappl4 104 299 0 276 1 0 1 1 0 8 0
amappl3 96 2501 0 2491 1 0 1 1 0 8 0
amappl2 88 38127 0 38058 3 1 2 3 0 8 0
amappl1 80 143200 0 142731 27 15 12 21 0 8 0
amappl 88 10908 0 10842 2 0 2 2 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 64 36 0 0 1 0 1 1 0 8 0
uaddrrnd 24 4904 0 4879 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 4904 0 4879 1 0 1 1 0 8 0
vmmpekpl 168 21898 0 21861 2 0 2 2 0 8 0
vmmpepl 168 614515 0 613077 100 27 73 77 0 357 0
vmsppl 368 4903 0 4879 4 1 3 3 0 8 0
rwobjpl 56 126850 0 125864 29 14 15 19 0 8 0
pdppl 4096 9815 0 9768 70 19 51 52 0 8 4
pvpl 32 1785733 0 1776197 169 77 92 117 0 265 3
pmappl 232 4903 0 4879 3 1 2 2 0 8 0
extentpl 40 58 0 40 1 0 1 1 0 8 0
phpool 112 382 0 41 10 0 10 10 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
pfi_ifhead_RB_REMOVE(ffffffff828f2268,ffff800000b58a00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80
pfi_detach_ifgroup(ffff800000b44e80) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline]
pfi_detach_ifgroup(ffff800000b44e80) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304
if_delgroup(ffff800000b17000,ffff800000b44e80) at if_delgroup+0x193 sys/net/if.c:2711
if_detach(ffff800000b17000) at if_detach+0x1cb sys/net/if.c:1049
tun_clone_destroy(ffff800000b17000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325
if_clone_destroy(ffff8000222a4c20) at if_clone_destroy+0x136 sys/net/if.c:1212
tun_dev_close(5d01,7) at tun_dev_close+0x140 sys/net/if_tun.c:479
spec_close(ffff8000222a4cf0) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd806e2906a8,7,fffffd807f7b7720,ffff8000234bd270) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177
vn_closefile(fffffd806a1f6e58,ffff8000234bd270) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806a1f6e58,ffff8000234bd270) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806a1f6e58,ffff8000234bd270) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd806a1f6e58,ffff8000234bd270) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff8000234bd270) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff8000234bd270,0,0,1) at exit1+0x335 sys/kern/kern_exit.c:200
sys_exit(ffff8000234bd270,ffff8000222a4f80,ffff8000222a4fd0) at sys_exit+0x16 sys/kern/kern_exit.c:96
syscall(ffff8000222a5050) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000222a5050) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc2780, count: -17
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff828c9108) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff828c9108) at __mp_lock+0x122 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff828c9108,2) at __mp_acquire_count+0x4c sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x390 sys/kern/sched_bsd.c:433
sleep_finish(ffff800021200148,1) at sleep_finish+0x111 sys/kern/kern_synch.c:427
sleep_finish_all(ffff800021200148,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:457 [inline]
sleep_finish_all(ffff800021200148,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:402
tsleep(ffffffff828ed1dc,118,ffffffff82421352,4198cd) at tsleep+0x1f2 sys/kern/kern_synch.c:163
doppoll(ffff8000211c3508,7f7ffffcd270,3,ffff8000212002d8,0,ffff800021200390) at doppoll+0x577
sys_poll(ffff8000211c3508,ffff800021200340,ffff800021200390) at sys_poll+0xa7
syscall(ffff800021200410) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800021200410) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffcd250, count: -13