kernel: protection fault trap, code=0
Stopped at pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
the kernel did not panic
ddb{1}> trace
pfi_ifhead_RB_REMOVE(ffffffff829032c0,ffff800000ba5f00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80
pfi_detach_ifgroup(ffff800000bb4c00) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline]
pfi_detach_ifgroup(ffff800000bb4c00) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304
if_delgroup(ffff800000b73000,ffff800000bb4c00) at if_delgroup+0x193 sys/net/if.c:2700
if_detach(ffff800000b73000) at if_detach+0x1cb sys/net/if.c:1049
tun_clone_destroy(ffff800000b73000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325
if_clone_destroy(ffff80002129d040) at if_clone_destroy+0x136 sys/net/if.c:1212
tun_dev_close(5d00,7) at tun_dev_close+0x140 sys/net/if_tun.c:479
spec_close(ffff80002129d110) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd807942c408,7,fffffd807f7b7a80,ffff8000212c4000) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177
vn_closefile(fffffd806cbab600,ffff8000212c4000) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806cbab600,ffff8000212c4000) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806cbab600,ffff8000212c4000) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd806cbab600,ffff8000212c4000) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff8000212c4000) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff8000212c4000,0,19,1) at exit1+0x335 sys/kern/kern_exit.c:200
postsig(ffff8000212c4000,19) at postsig+0x59c sigexit sys/kern/kern_sig.c:1494 [inline]
postsig(ffff8000212c4000,19) at postsig+0x59c sys/kern/kern_sig.c:1423
userret(ffff8000212c4000) at userret+0x189 sys/kern/kern_sig.c:1914
syscall(ffff80002129d590) at syscall+0x55c mi_syscall_return sys/sys/syscall_mi.h:129 [inline]
syscall(ffff80002129d590) at syscall+0x55c sys/arch/amd64/amd64/trap.c:612
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffcb1b0, count: -18
ddb{1}> show registers
rdi 0xffffffff829032c0 pfi_ifs
rsi 0xffff800000ba5f00
rbp 0xffff80002129cea0
rbx 0xdeafbeaddeafbead
rdx 0
rcx 0xffff8000006bbf00
rax 0xffff800000ba5f10
r8 0xf8
r9 0x8080808080808080
r10 0x9a43985381115ee0
r11 0xc4288ae11ddd0250
r12 0xdeafbeaddeafbead
r13 0xffff800000ba6360
r14 0xffff800000ba5f00
r15 0xffffffff829032c0 pfi_ifs
rip 0xffffffff81c83050 pfi_ifhead_RB_REMOVE+0x50
cs 0x8
rflags 0x10282 __ALIGN_SIZE+0xf282
rsp 0xffff80002129ce40
ss 0x10
pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx
ddb{1}> show proc
PROC (syz-executor.0) pid=422571 stat=onproc
flags process=a<EXEC,EXITING,8ORPHAN> proc=2000<WEXIT>
pri=32, usrpri=77, nice=20
forw=0xffffffffffffffff, list=0xffff8000212c4fc0,0xffff8000212c4550
process=0xffff800022ac9968 user=0xffff800021298000, vmspace=0xfffffd807c93b740
estcpu=36, cpticks=3, pctcpu=0.37
user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
53757 492221 1 0 3 0x100083 ttyin getty
51111 517309 52421 0 3 0x82 piperd syz-executor.1
51532 397972 0 0 3 0x14200 acct acct
24573 154640 0 0 3 0x14200 bored sosplice
46790 40613 0 0 3 0x14280 nfsidl nfsio
77905 293187 0 0 3 0x14280 nfsidl nfsio
70186 499372 0 0 3 0x14280 nfsidl nfsio
11057 485006 0 0 3 0x14280 nfsidl nfsio
95649 227239 0 0 3 0x14280 nfsidl nfsio
82229 284603 0 0 3 0x14280 nfsidl nfsio
28229 775 0 0 3 0x14280 nfsidl nfsio
6641 459274 0 0 3 0x14280 nfsidl nfsio
93565 422312 0 0 3 0x14280 nfsidl nfsio
41647 224724 0 0 3 0x14280 nfsidl nfsio
19510 411227 0 0 3 0x14280 nfsidl nfsio
59526 247221 0 0 3 0x14280 nfsidl nfsio
64395 58748 0 0 3 0x14280 nfsidl nfsio
29138 324051 0 0 3 0x14280 nfsidl nfsio
5639 54352 0 0 3 0x14280 nfsidl nfsio
36767 378233 0 0 3 0x14280 nfsidl nfsio
55027 423211 0 0 3 0x14280 nfsidl nfsio
34241 277261 0 0 3 0x14280 nfsidl nfsio
84865 107155 0 0 3 0x14280 nfsidl nfsio
86824 84390 0 0 3 0x14280 nfsidl nfsio
52421 464144 80895 0 3 0x82 thrsleep syz-fuzzer
52421 304514 80895 0 3 0x4000082 thrsleep syz-fuzzer
52421 287313 80895 0 3 0x4000082 kqread syz-fuzzer
52421 36180 80895 0 3 0x4000082 thrsleep syz-fuzzer
52421 330314 80895 0 3 0x4000082 thrsleep syz-fuzzer
52421 381852 80895 0 3 0x4000082 thrsleep syz-fuzzer
52421 420028 80895 0 3 0x4000082 thrsleep syz-fuzzer
52421 439471 80895 0 3 0x4000082 thrsleep syz-fuzzer
80895 413053 6767 0 3 0x10008a sigsusp ksh
6767 408059 57097 0 3 0x92 select sshd
57097 295497 1 0 3 0x80 select sshd
89380 302088 47483 74 3 0x100092 bpf pflogd
47483 91328 1 0 3 0x80 netio pflogd
42525 273934 4185 73 3 0x100090 kqread syslogd
4185 458846 1 0 3 0x100082 netio syslogd
56591 490898 1 77 7 0x100090 dhclient
74679 60439 1 0 3 0x80 poll dhclient
2712 380002 0 0 3 0x14200 bored smr
74868 517603 0 0 3 0x14200 pgzero zerothread
63241 478264 0 0 3 0x14200 aiodoned aiodoned
80603 504383 0 0 3 0x14200 syncer update
46055 282519 0 0 3 0x14200 cleaner cleaner
46928 303016 0 0 3 0x14200 reaper reaper
38183 16770 0 0 3 0x14200 pgdaemon pagedaemon
83007 60592 0 0 3 0x14200 bored crynlk
91899 437099 0 0 3 0x14200 bored crypto
81248 253356 0 0 3 0x14200 bored viomb
96281 201853 0 0 3 0x40014200 acpi0 acpi0
96237 16006 0 0 3 0x40014200 idle1
96972 110868 0 0 3 0x14200 bored softnet
59368 120278 0 0 2 0x14200 systqmp
10160 48469 0 0 3 0x14200 bored systq
75612 163536 0 0 3 0x40014200 bored softclock
84406 251813 0 0 3 0x40014200 idle0
1 174680 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9546 6439K 7591K 78643K 17720 0
pcb 13 8K 8K 78643K 284 0
rtable 87 3K 5K 78643K 1008 0
ifaddr 81 16K 18K 78643K 371 0
sysctl 3 1K 1K 78643K 3 0
counters 46 34K 34K 78643K 154 0
ioctlops 0 0K 4K 78643K 1687 0
iov 0 0K 24K 78643K 160 0
mount 1 1K 1K 78643K 1 0
vnodes 1225 77K 77K 78643K 3605 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 31 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 325 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12598 0
file desc 4 9K 25K 78643K 6640 0
sigio 0 0K 0K 78643K 13 0
proc 63 63K 95K 78643K 1045 0
subproc 23 1K 2K 78643K 121 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 274 0
in_multi 22 1K 2K 78643K 269 0
ether_multi 1 0K 0K 78643K 75 0
mrt 0 0K 0K 78643K 28 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 55 254K 254K 78643K 55 0
exec 0 0K 2K 78643K 730 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 202 274K 274K 78643K 16026 0
UVM aobj 24 2K 2K 78643K 24 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 184 0
NDP 15 0K 0K 78643K 91 0
temp 145 3987K 4063K 78643K 48953 0
kqueue 3 4K 24K 78643K 431 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 25 0 21 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 120 301 0 299 1 0 1 1 0 8 0
rtentry 112 137 0 104 2 0 2 2 0 8 0
unpcb 120 1536 0 1514 3 2 1 2 0 8 0
syncache 296 42 0 42 6 5 1 1 0 8 1
tcpqe 32 95 0 95 4 3 1 1 0 8 1
tcpcb 736 793 0 789 18 16 2 6 0 8 1
inpcb 304 1935 0 1928 9 7 2 2 0 8 1
rttmr 72 4 0 4 1 1 0 1 0 8 0
nd6 48 29 0 26 1 0 1 1 0 8 0
pkpcb 40 5 0 5 1 1 0 1 0 8 0
kcovpl 48 7 0 6 1 0 1 1 0 8 0
ppxss 1128 31 0 30 2 1 1 1 0 8 0
pffrag 232 6 0 4 2 1 1 1 0 482 0
pffrnode 88 5 0 4 2 1 1 1 0 8 0
pffrent 40 22 0 20 3 2 1 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
pfrktable 1344 39 0 39 3 3 0 1 0 8 0
pfstitem 24 40 0 38 1 0 1 1 0 8 0
pfstkey 112 60 0 58 1 0 1 1 0 8 0
pfstate 320 50 0 48 2 1 1 2 0 8 0
pfrule 1360 98 0 82 3 1 2 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 447 0 255 13 0 13 13 0 8 0
art_table 32 448 0 255 2 0 2 2 0 8 0
art_node 16 136 0 99 1 0 1 1 0 8 0
sysvmsgpl 40 26 0 16 1 0 1 1 0 8 0
semapl 112 323 0 313 1 0 1 1 0 8 0
shmpl 112 21 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 9365 0 7956 91 2 89 89 0 8 0
ffsino 272 9365 0 7956 95 0 95 95 0 8 0
nchpl 144 17005 0 15421 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 41956 0 41956 4 3 1 1 0 8 1
percpumem 16 88 0 54 1 0 1 1 0 8 0
vcpupl 1984 18 0 0 3 0 3 3 0 8 0
vmpool 560 31 0 13 2 0 2 2 0 8 0
pfiaddrpl 120 7 0 7 1 1 0 1 0 8 0
scsiplug 72 5 0 5 1 1 0 1 0 8 0
scxspl 216 53429 0 53429 16 15 1 8 0 8 1
plimitpl 152 98 0 90 1 0 1 1 0 8 0
sigapl 424 6864 0 6811 7 0 7 7 0 8 0
futexpl 56 41043 0 41043 3 2 1 1 0 8 1
knotepl 112 922 0 904 2 1 1 2 0 8 0
kqueuepl 168 3412 0 3410 1 0 1 1 0 8 0
pipepl 336 413 0 403 14 12 2 3 0 8 1
fdescpl 496 6826 0 6811 3 0 3 3 0 8 0
filepl 152 21068 0 20977 9 4 5 7 0 8 1
lockfpl 104 919 0 918 1 0 1 1 0 8 0
lockfspl 48 320 0 319 1 0 1 1 0 8 0
sessionpl 144 24 0 13 1 0 1 1 0 8 0
pgrppl 48 24 0 13 1 0 1 1 0 8 0
ucredpl 96 1913 0 1903 1 0 1 1 0 8 0
zombiepl 144 6812 0 6811 2 1 1 1 0 8 0
processpl 1080 6864 0 6811 4 0 4 4 0 8 0
procpl 672 14983 0 14923 7 1 6 6 0 8 0
srpgc 96 2 0 2 1 1 0 1 0 8 0
sosppl 168 55 0 55 7 6 1 1 0 8 1
sockpl 432 3802 0 3771 15 10 5 8 0 8 1
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 9 0 0 1 0 1 1 0 8 0
mcl9k 9216 11 0 0 1 0 1 1 0 8 0
mcl8k 8192 14 0 0 2 0 2 2 0 8 0
mcl4k 4096 11 0 0 2 0 2 2 0 8 0
mcl2k 2048 286 0 0 17 0 17 17 0 8 0
mtagpl 96 336 0 0 7 0 7 7 0 8 0
mbufpl 256 909 0 0 47 1 46 46 0 8 0
bufpl 280 14126 0 7879 447 0 447 447 0 8 0
anonpl 24 480195 0 472106 87 36 51 53 0 186 0
amapchunkpl 152 29577 0 29328 44 27 17 24 0 158 7
amappl16 200 21263 0 20982 38 22 16 21 0 8 1
amappl15 192 3 0 1 1 0 1 1 0 8 0
amappl14 184 29 0 22 1 0 1 1 0 8 0
amappl13 176 201 0 199 1 0 1 1 0 8 0
amappl12 168 758 0 754 1 0 1 1 0 8 0
amappl11 160 640 0 623 1 0 1 1 0 8 0
amappl10 152 23 0 18 1 0 1 1 0 8 0
amappl9 144 3372 0 3370 2 1 1 1 0 8 0
amappl8 136 3432 0 3344 4 0 4 4 0 8 0
amappl7 128 3665 0 3657 1 0 1 1 0 8 0
amappl6 120 92 0 77 1 0 1 1 0 8 0
amappl5 112 7981 0 7960 1 0 1 1 0 8 0
amappl4 104 1081 0 1051 1 0 1 1 0 8 0
amappl3 96 470 0 463 1 0 1 1 0 8 0
amappl2 88 53558 0 53495 3 1 2 3 0 8 0
amappl1 80 199976 0 199531 26 14 12 21 0 8 0
amappl 88 15389 0 15313 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 23 0 0 1 0 1 1 0 8 0
uaddrrnd 24 6857 0 6824 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 6857 0 6824 1 0 1 1 0 8 0
vmmpekpl 168 37837 0 37795 2 0 2 2 0 8 0
vmmpepl 168 853591 0 852131 113 37 76 76 0 357 3
vmsppl 368 6856 0 6824 5 1 4 4 0 8 0
rwobjpl 56 178376 0 177361 32 16 16 19 0 8 1
pdppl 4096 13721 0 13666 80 20 60 60 0 8 5
pvpl 32 2333290 0 2323033 183 89 94 117 0 265 7
pmappl 232 6856 0 6824 4 1 3 3 0 8 1
extentpl 40 58 0 40 1 0 1 1 0 8 0
phpool 112 402 0 58 10 0 10 10 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{0}> trace
x86_ipi_db(ffffffff82710ff0) 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(ffffffff828bf3f8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff828bf3f8) at __mp_lock+0x122 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff828bf3f8,2) 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(ffff8000211ffe18,1) at sleep_finish+0x111 sys/kern/kern_synch.c:427
sleep_finish_all(ffff8000211ffe18,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:457 [inline]
sleep_finish_all(ffff8000211ffe18,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:402
tsleep(ffffffff828bc99c,118,ffffffff8241eb97,416e65) at tsleep+0x1f2 sys/kern/kern_synch.c:163
doppoll(ffff8000211c3a48,7f7ffffdd8c0,3,ffff8000211fffa8,0,ffff800021200060) at doppoll+0x577
sys_poll(ffff8000211c3a48,ffff800021200010,ffff800021200060) at sys_poll+0xa7
syscall(ffff8000212000e0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212000e0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffdd8a0, count: -13
ddb{0}> machine ddbcpu 1
Stopped at pfi_ifhead_RB_REMOVE+0x50: movq 0x10(%r12),%rbx
ddb{1}> trace
pfi_ifhead_RB_REMOVE(ffffffff829032c0,ffff800000ba5f00) at pfi_ifhead_RB_REMOVE+0x50 sys/net/pf_if.c:80
pfi_detach_ifgroup(ffff800000bb4c00) at pfi_detach_ifgroup+0x11b pfi_kif_unref sys/net/pf_if.c:211 [inline]
pfi_detach_ifgroup(ffff800000bb4c00) at pfi_detach_ifgroup+0x11b sys/net/pf_if.c:304
if_delgroup(ffff800000b73000,ffff800000bb4c00) at if_delgroup+0x193 sys/net/if.c:2700
if_detach(ffff800000b73000) at if_detach+0x1cb sys/net/if.c:1049
tun_clone_destroy(ffff800000b73000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:325
if_clone_destroy(ffff80002129d040) at if_clone_destroy+0x136 sys/net/if.c:1212
tun_dev_close(5d00,7) at tun_dev_close+0x140 sys/net/if_tun.c:479
spec_close(ffff80002129d110) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd807942c408,7,fffffd807f7b7a80,ffff8000212c4000) at VOP_CLOSE+0xeb sys/kern/vfs_vops.c:177
vn_closefile(fffffd806cbab600,ffff8000212c4000) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806cbab600,ffff8000212c4000) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806cbab600,ffff8000212c4000) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd806cbab600,ffff8000212c4000) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff8000212c4000) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff8000212c4000,0,19,1) at exit1+0x335 sys/kern/kern_exit.c:200
postsig(ffff8000212c4000,19) at postsig+0x59c sigexit sys/kern/kern_sig.c:1494 [inline]
postsig(ffff8000212c4000,19) at postsig+0x59c sys/kern/kern_sig.c:1423
userret(ffff8000212c4000) at userret+0x189 sys/kern/kern_sig.c:1914
syscall(ffff80002129d590) at syscall+0x55c mi_syscall_return sys/sys/syscall_mi.h:129 [inline]
syscall(ffff80002129d590) at syscall+0x55c sys/arch/amd64/amd64/trap.c:612
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffcb1b0, count: -18