login: uvm_fault(0xfffffd807f00b170, 0x433, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at pfi_kif_update+0xf6: movq 0x40(%rax),%rbx
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
kernel page fault
uvm_fault(0xfffffd807f00b170, 0x433, 0, 1) -> e
pfi_kif_update(ffff800000b05d00) at pfi_kif_update+0xf6
end trace frame: 0xffff80002357f120, count: 0
ddb{1}> trace
pfi_kif_update(ffff800000b05d00) at pfi_kif_update+0xf6
pfi_kif_update(ffff800000b0f900) at pfi_kif_update+0x121
dohooks(ffff80000005b170,0) at dohooks+0x68 sys/kern/kern_subr.c:254
in_ioctl_change_ifaddr(8040691a,ffff80002357f370,ffff800000b35800,1) at in_ioctl_change_ifaddr+0x613 sys/netinet/in.c:483
in_ioctl(8040691a,ffff80002357f370,ffff800000b35800,1) at in_ioctl+0x205 sys/netinet/in.c:234
ifioctl(fffffd806f6d3600,8040691a,ffff80002357f370,ffff800020acfb48) at ifioctl+0xb64 sys/net/if.c:2202
sys_ioctl(ffff800020acfb48,ffff80002357f488,ffff80002357f4d0) at sys_ioctl+0x5b9
syscall(ffff80002357f550) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
syscall(ffff80002357f550) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff36,0,3,fc7b839e010) at Xsyscall+0x128
end of kernel
end trace frame: 0xfcaad6ca9f0, count: -9
ddb{1}> show registers
rdi 0xffffffff811899ed pfi_kif_update+0x3d
rsi 0x3aa7 __ALIGN_SIZE+0x2aa7
rbp 0xffff80002357f0c0
rbx 0xffff800000b05d00
rdx 0x3aa8 __ALIGN_SIZE+0x2aa8
rcx 0xffff800022d50000
rax 0x3f3
r8 0xffffffff81998fbb refcnt_rele_wake+0x3b
r9 0x5
r10 0x1
r11 0x8e4d078c9abe3a96
r12 0
r13 0
r14 0
r15 0
rip 0xffffffff81189aa6 pfi_kif_update+0xf6
cs 0x8
rflags 0x10206 __ALIGN_SIZE+0xf206
rsp 0xffff80002357f070
ss 0x10
pfi_kif_update+0xf6: movq 0x40(%rax),%rbx
ddb{1}> show proc
PROC (syz-executor.1) pid=375263 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020acec78,0xffffffff82643de0
process=0xffff800020a8ae10 user=0xffff80002357a000, vmspace=0xfffffd807f00b170
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
25614 293974 47079 0 7 0 syz-executor.1
*25614 375263 47079 0 7 0x4000000 syz-executor.1
87299 73264 93436 0 2 0 syz-executor.0
87299 181421 93436 0 3 0x4000080 ttyout syz-executor.0
93436 389063 31761 0 3 0x82 nanosleep syz-executor.0
47079 152015 31761 0 3 0x82 nanosleep syz-executor.1
70245 72791 1 0 3 0x100083 ttyin getty
97141 248620 0 0 3 0x14200 acct acct
48496 72814 0 0 3 0x14200 bored sosplice
31761 484546 89640 0 3 0x82 thrsleep syz-fuzzer
31761 423688 89640 0 3 0x4000082 nanosleep syz-fuzzer
31761 22704 89640 0 3 0x4000082 thrsleep syz-fuzzer
31761 15148 89640 0 3 0x4000082 thrsleep syz-fuzzer
31761 230600 89640 0 3 0x4000082 thrsleep syz-fuzzer
31761 222004 89640 0 3 0x4000082 thrsleep syz-fuzzer
31761 231746 89640 0 3 0x4000082 thrsleep syz-fuzzer
31761 95020 89640 0 3 0x4000082 thrsleep syz-fuzzer
31761 8494 89640 0 3 0x4000082 kqread syz-fuzzer
31761 346929 89640 0 3 0x4000082 thrsleep syz-fuzzer
89640 25428 90765 0 3 0x10008a pause ksh
90765 33683 47668 0 3 0x92 select sshd
47668 514474 1 0 3 0x80 select sshd
13910 437122 83440 74 3 0x100092 bpf pflogd
83440 290148 1 0 3 0x80 netio pflogd
44914 379333 81060 73 3 0x100090 kqread syslogd
81060 402053 1 0 3 0x100082 netio syslogd
21596 205637 1 77 3 0x100090 poll dhclient
70779 522420 1 0 3 0x80 poll dhclient
7458 246633 0 0 2 0x14200 zerothread
6205 32079 0 0 3 0x14200 aiodoned aiodoned
80419 282945 0 0 3 0x14200 syncer update
5075 293166 0 0 3 0x14200 cleaner cleaner
89184 188835 0 0 3 0x14200 reaper reaper
15205 15410 0 0 3 0x14200 pgdaemon pagedaemon
63180 119911 0 0 3 0x14200 bored crynlk
36054 235595 0 0 3 0x14200 bored crypto
78188 241658 0 0 3 0x40014200 acpi0 acpi0
59020 286650 0 0 3 0x40014200 idle1
70924 109720 0 0 2 0x14200 softnet
50700 61297 0 0 2 0x14200 systqmp
9896 400626 0 0 3 0x14200 bored systq
64789 310374 0 0 3 0x40014200 bored softclock
23779 125327 0 0 3 0x40014200 idle0
92334 336109 0 0 3 0x14200 bored smr
1 415617 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 25614 (syz-executor.1) thread 0xffff800020acfb48 (375263)
exclusive rwlock netlock r = 0 (0xffffffff824a1878)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 in_ioctl_change_ifaddr+0x3f
#2 in_ioctl+0x205 sys/netinet/in.c:234
#3 ifioctl+0xb64 sys/net/if.c:2202
#4 sys_ioctl+0x5b9
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#6 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8265b1f8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline]
#1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555
#2 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9644 6481K 8207K 78643K 26839 0 0
pcb 13 10K 12K 78643K 1542 0 0
rtable 119 9K 10K 78643K 4131 0 0
ifaddr 103 26K 28K 78643K 1412 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1936 0 0
iov 0 0K 32K 78643K 1167 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1227 77K 78K 78643K 8755 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 5K 78643K 126 0 0
VM map 2 1K 1K 78643K 19 0 0
sem 12 1K 1K 78643K 265 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 6 17K 25K 78643K 10904 0 0
sigio 0 0K 0K 78643K 140 0 0
proc 62 63K 95K 78643K 3153 0 0
subproc 32 2K 2K 78643K 841 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 1167 0 0
in_multi 32 2K 2K 78643K 770 0 0
ether_multi 1 0K 0K 78643K 36 0 0
mrt 0 0K 0K 78643K 44 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 204 901K 901K 78643K 204 0 0
exec 0 0K 1K 78643K 1584 0 0
pfkey data 0 0K 4K 78643K 2 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 134 23K 32K 78643K 38531 0 0
UVM aobj 130 5K 5K 78643K 157 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 1K 78643K 1584 0 0
NDP 25 0K 1K 78643K 440 0 0
temp 269 3558K 4197K 78643K 152363 0 0
kqueue 0 0K 0K 78643K 90 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 101 0 95 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 501 0 499 1 0 1 1 0 8 0
rtentry 112 542 0 501 2 0 2 2 0 8 0
unpcb 120 7527 0 7491 13 11 2 3 0 8 0
syncache 264 18 0 18 11 11 0 1 0 8 0
sackhl 24 2 0 2 2 2 0 1 0 8 0
tcpqe 32 6072 0 6072 5 5 0 2 0 8 0
tcpcb 544 2840 0 2836 3 2 1 2 0 8 0
inpcb 280 11436 0 11426 48 46 2 13 0 8 1
rttmr 72 5 0 5 4 4 0 1 0 8 0
nd6 48 96 0 93 1 0 1 1 0 8 0
pkpcb 40 55 0 55 22 22 0 1 0 8 0
swfcl 56 3 0 0 1 0 1 1 0 8 0
ppxss 1128 217 0 217 30 29 1 1 0 8 1
pffrag 232 20 0 20 9 9 0 1 0 482 0
pffrnode 88 20 0 20 9 9 0 1 0 8 0
pffrent 40 51 0 51 10 10 0 1 0 8 0
pfosfp 40 846 0 846 5 5 0 5 0 8 0
pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0
pfstitem 24 353 0 331 1 0 1 1 0 8 0
pfstkey 112 354 0 332 1 0 1 1 0 8 0
pfstate 328 354 0 332 5 2 3 3 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 8 0 5 4 1 3 3 0 8 0
art_heap4 256 2377 0 2128 39 23 16 18 0 8 0
art_table 32 2385 0 2133 3 0 3 3 0 8 0
art_node 16 530 0 489 1 0 1 1 0 8 0
sysvmsgpl 40 34 0 24 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 255 0 245 1 0 1 1 0 8 0
shmpl 112 155 0 27 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 18813 0 17389 47 0 47 47 0 8 0
ffsino 272 18813 0 17389 96 0 96 96 0 8 0
nchpl 144 35509 0 33832 65 2 63 63 0 8 0
uvmvnodes 72 7004 0 0 128 0 128 128 0 8 0
vnodes 208 7004 0 0 369 0 369 369 0 8 0
namei 1024 136792 0 136792 4 3 1 1 0 8 1
percpumem 16 30 0 0 1 0 1 1 0 8 0
vmpool 552 17 0 17 9 9 0 1 0 8 0
scsiplug 64 23 0 23 15 15 0 1 0 8 0
scxspl 192 98655 0 98655 47 44 3 7 0 8 3
plimitpl 152 992 0 984 1 0 1 1 0 8 0
sigapl 432 10968 0 10952 3 1 2 3 0 8 0
futexpl 56 226418 0 226418 2 1 1 1 0 8 1
knotepl 112 2418 0 2399 1 0 1 1 0 8 0
kqueuepl 104 5046 0 5044 1 0 1 1 0 8 0
pipepl 112 6176 0 6157 20 19 1 2 0 8 0
fdescpl 488 10969 0 10952 3 0 3 3 0 8 0
filepl 152 102307 0 102202 68 62 6 14 0 8 1
lockfpl 104 3545 0 3544 1 0 1 1 0 8 0
lockfspl 48 1116 0 1115 1 0 1 1 0 8 0
sessionpl 112 70 0 59 1 0 1 1 0 8 0
pgrppl 48 219 0 208 1 0 1 1 0 8 0
ucredpl 96 21321 0 21312 1 0 1 1 0 8 0
zombiepl 144 10953 0 10953 3 2 1 1 0 8 1
processpl 896 10987 0 10953 4 0 4 4 0 8 0
procpl 632 35463 0 35418 5 0 5 5 0 8 0
srpgc 64 92 0 92 29 28 1 1 0 8 1
sosppl 128 124 0 124 33 32 1 1 0 8 1
sockpl 384 19718 0 19672 85 79 6 23 0 8 0
mcl64k 65536 273 0 0 34 30 4 34 0 8 0
mcl16k 16384 17 0 0 3 0 3 3 0 8 0
mcl12k 12288 49 0 0 2 0 2 2 0 8 0
mcl9k 9216 34 0 0 2 0 2 2 0 8 0
mcl8k 8192 39 0 0 4 2 2 3 0 8 0
mcl4k 4096 33 0 0 5 2 3 3 0 8 0
mcl2k2 2112 11 0 0 1 0 1 1 0 8 0
mcl2k 2048 220 0 0 24 7 17 24 0 8 0
mtagpl 80 50 0 0 1 0 1 1 0 8 0
mbufpl 256 851 0 0 22 3 19 21 0 8 0
bufpl 256 30904 0 23856 441 0 441 441 0 8 0
anonpl 16 1077379 0 1064205 267 196 71 80 0 124 0
amapchunkpl 152 74144 0 74032 140 133 7 19 0 158 1
amappl16 192 52881 0 52002 269 224 45 56 0 8 0
amappl15 184 1741 0 1737 4 3 1 1 0 8 0
amappl14 176 1570 0 1566 2 1 1 1 0 8 0
amappl13 168 1445 0 1445 7 6 1 1 0 8 1
amappl12 160 1714 0 1709 1 0 1 1 0 8 0
amappl11 152 1223 0 1208 1 0 1 1 0 8 0
amappl10 144 1739 0 1733 1 0 1 1 0 8 0
amappl9 136 2873 0 2866 1 0 1 1 0 8 0
amappl8 128 2504 0 2461 3 1 2 2 0 8 0
amappl7 120 1943 0 1932 1 0 1 1 0 8 0
amappl6 112 1120 0 1107 1 0 1 1 0 8 0
amappl5 104 2235 0 2221 1 0 1 1 0 8 0
amappl4 96 11523 0 11487 2 1 1 2 0 8 0
amappl3 88 1689 0 1682 1 0 1 1 0 8 0
amappl2 80 85917 0 85830 4 2 2 3 0 8 0
amappl1 72 252303 0 251862 25 15 10 20 0 8 0
amappl 80 36497 0 36457 2 0 2 2 0 84 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma64 64 259 0 259 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 17 0 17 1 1 0 1 0 8 0
aobjpl 64 156 0 27 3 0 3 3 0 8 0
uaddrrnd 24 10986 0 10952 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 10986 0 10952 1 0 1 1 0 8 0
vmmpekpl 168 91955 0 91922 2 0 2 2 0 8 0
vmmpepl 168 1361305 0 1359169 632 509 123 128 0 357 23
vmsppl 368 10968 0 10952 2 0 2 2 0 8 0
pdppl 4096 21979 0 21938 8 2 6 6 0 8 0
pvpl 32 2835407 0 2818892 630 466 164 196 0 265 5
pmappl 232 10985 0 10969 12 11 1 2 0 8 0
extentpl 40 41 0 26 1 0 1 1 0 8 0
phpool 112 696 0 78 19 0 19 19 0 8 0