uvm_fault(0xffffffff82620718, 0xffff800000ad7074, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
kernel page fault
uvm_fault(0xffffffff82620718, 0xffff800000ad7074, 0, 1) -> e
rtable_satoplen(2,ffff800000ad6f78) at rtable_satoplen+0x150 sys/net/rtable.c:894
end trace frame: 0xffff800021d95350, count: 0
ddb{1}> trace
rtable_satoplen(2,ffff800000ad6f78) at rtable_satoplen+0x150 sys/net/rtable.c:894
rtable_lookup(0,fffffd8068e38120,ffff800000ad6f78,ffff800000ad6f58,4) at rtable_lookup+0xeb sys/net/rtable.c:391
rtrequest_delete(ffff800021d953f0,4,ffff800000aa9800,ffff800021d954c0,0) at rtrequest_delete+0xe3 sys/net/route.c:775
rt_ifa_del(ffff800000ad6f00,800100,ffff800000ad6f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191
in_purgeaddr(ffff800000ad6f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline]
in_purgeaddr(ffff800000ad6f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline]
in_purgeaddr(ffff800000ad6f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678
in_ifinit(ffff800000aa9800,ffff800000ad6f00,ffff800021d95840,1) at in_ifinit+0x234 sys/netinet/in.c:664
in_ioctl_change_ifaddr(8040691a,ffff800021d95830,ffff800000aa9800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452
in_ioctl(8040691a,ffff800021d95830,ffff800000aa9800,1) at in_ioctl+0x205 sys/netinet/in.c:234
ifioctl(fffffd8070cbf790,8040691a,ffff800021d95830,ffff800020ab0018) at ifioctl+0xb64 sys/net/if.c:2202
sys_ioctl(ffff800020ab0018,ffff800021d95948,ffff800021d95990) at sys_ioctl+0x5b9
syscall(ffff800021d95a10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800021d95a10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff36,0,3,c1ed4268010) at Xsyscall+0x128
end of kernel
end trace frame: 0xc20e3e6f030, count: -12
ddb{1}> show registers
rdi 0
rsi 0xfd
rbp 0xffff800021d952b0
rbx 0xffffffffffffff07
rdx 0xffff800000ad6f7c
rcx 0xffff800000ad7075
rax 0xffff800000ad7075
r8 0x4
r9 0x5
r10 0x554a411a0c5aad81
r11 0xb179497eff3c796d
r12 0
r13 0xffff800000ad7075
r14 0xffffffff824cfef0 inetdomain
r15 0x4
rip 0xffffffff8102c080 rtable_satoplen+0x150
cs 0x8
rflags 0x10283 __ALIGN_SIZE+0xf283
rsp 0xffff800021d95260
ss 0x10
rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d
ddb{1}> show proc
PROC (syz-executor.1) pid=377277 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=79, usrpri=79, nice=20
forw=0xffffffffffffffff, list=0xffff800020ab13d8,0xffffffff8265bb30
process=0xffff800020adc380 user=0xffff800021d90000, vmspace=0xfffffd807f00b8a0
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
83233 401923 59504 0 2 0 syz-executor.1
*83233 377277 59504 0 7 0x4000000 syz-executor.1
75969 395115 97933 0 7 0 syz-executor.0
75969 197235 97933 0 2 0x4000000 syz-executor.0
59504 176397 89046 0 3 0x82 nanosleep syz-executor.1
97933 308481 89046 0 3 0x82 nanosleep syz-executor.0
87398 522572 1 0 3 0x100083 ttyin getty
3192 442482 0 0 3 0x14200 bored sosplice
89046 348363 58068 0 3 0x82 thrsleep syz-fuzzer
89046 311174 58068 0 3 0x4000082 nanosleep syz-fuzzer
89046 276994 58068 0 3 0x4000082 thrsleep syz-fuzzer
89046 188895 58068 0 3 0x4000082 thrsleep syz-fuzzer
89046 510228 58068 0 3 0x4000082 kqread syz-fuzzer
89046 25046 58068 0 3 0x4000082 thrsleep syz-fuzzer
89046 173812 58068 0 3 0x4000082 thrsleep syz-fuzzer
89046 478888 58068 0 3 0x4000082 thrsleep syz-fuzzer
89046 487315 58068 0 3 0x4000082 thrsleep syz-fuzzer
89046 291443 58068 0 3 0x4000082 thrsleep syz-fuzzer
58068 460720 67377 0 3 0x10008a pause ksh
67377 182386 60186 0 3 0x92 select sshd
60186 97694 1 0 3 0x80 select sshd
3736 436344 20792 74 3 0x100092 bpf pflogd
20792 254540 1 0 3 0x80 netio pflogd
28270 251887 6737 73 3 0x100090 kqread syslogd
6737 213795 1 0 3 0x100082 netio syslogd
13810 298662 1 77 3 0x100090 poll dhclient
53814 368487 1 0 3 0x80 poll dhclient
71642 347732 0 0 2 0x14200 zerothread
7054 215997 0 0 3 0x14200 aiodoned aiodoned
97495 199785 0 0 3 0x14200 syncer update
13825 358354 0 0 3 0x14200 cleaner cleaner
15956 315680 0 0 3 0x14200 reaper reaper
75758 501481 0 0 3 0x14200 pgdaemon pagedaemon
46135 111751 0 0 3 0x14200 bored crynlk
69887 91783 0 0 3 0x14200 bored crypto
15634 401292 0 0 3 0x40014200 acpi0 acpi0
64930 394074 0 0 3 0x40014200 idle1
19844 318643 0 0 3 0x14200 bored softnet
33411 164005 0 0 3 0x14200 bored systqmp
71181 3410 0 0 3 0x14200 bored systq
74374 399738 0 0 3 0x40014200 bored softclock
58052 393218 0 0 3 0x40014200 idle0
81434 363594 0 0 3 0x14200 bored smr
1 235928 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 83233 (syz-executor.1) thread 0xffff800020ab0018 (377277)
exclusive rwlock netlock r = 0 (0xffffffff82478e48)
#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 (0xffffffff8263e9d8)
#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 9565 6547K 7190K 78643K 12288 0 0
pcb 13 8K 8K 78643K 177 0 0
rtable 94 4K 4K 78643K 634 0 0
ifaddr 71 15K 15K 78643K 197 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1508 0 0
iov 0 0K 16K 78643K 100 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1216 76K 77K 78643K 1867 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 5 0 0
VM map 2 1K 1K 78643K 10 0 0
sem 12 0K 0K 78643K 160 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 6 17K 25K 78643K 567 0 0
sigio 0 0K 0K 78643K 4 0 0
proc 61 63K 95K 78643K 650 0 0
subproc 32 2K 2K 78643K 102 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 83 0 0
in_multi 23 1K 2K 78643K 101 0 0
ether_multi 1 0K 0K 78643K 7 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 96 424K 424K 78643K 96 0 0
exec 0 0K 1K 78643K 293 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 120 22K 26K 78643K 3143 0 0
UVM aobj 37 2K 2K 78643K 37 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 0K 78643K 112 0 0
NDP 16 0K 0K 78643K 58 0 0
temp 199 3560K 3629K 78643K 14103 0 0
kqueue 0 0K 0K 78643K 3 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 19 0 15 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 63 0 61 1 0 1 1 0 8 0
rtentry 112 106 0 72 2 0 2 2 0 8 0
unpcb 120 320 0 310 1 0 1 1 0 8 0
syncache 264 7 0 7 2 2 0 1 0 8 0
tcpqe 32 70 0 70 2 2 0 1 0 8 0
tcpcb 544 495 0 491 2 1 1 2 0 8 0
inpcb 280 1897 0 1884 13 10 3 9 0 8 2
nd6 48 12 0 10 2 1 1 1 0 8 0
ppxss 1128 22 0 22 5 4 1 1 0 8 1
pffrag 232 17 0 17 4 3 1 1 0 482 1
pffrnode 88 17 0 17 4 3 1 1 0 8 1
pffrent 40 563 0 563 4 3 1 1 0 8 1
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 65 0 33 1 0 1 1 0 8 0
pfstkey 112 65 0 33 2 0 2 2 0 8 0
pfstate 328 65 0 33 4 0 4 4 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 7 0 6 5 3 2 3 0 8 1
art_heap4 256 462 0 290 17 4 13 14 0 8 2
art_table 32 469 0 296 2 0 2 2 0 8 0
art_node 16 105 0 74 1 0 1 1 0 8 0
sysvmsgpl 40 48 0 30 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 154 0 144 1 0 1 1 0 8 0
shmpl 112 35 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 2307 0 906 46 0 46 46 0 8 0
ffsino 272 2307 0 906 94 0 94 94 0 8 0
nchpl 144 3266 0 1662 61 0 61 61 0 8 0
uvmvnodes 72 2775 0 0 51 0 51 51 0 8 0
vnodes 208 2775 0 0 147 0 147 147 0 8 0
namei 1024 11529 0 11529 1 0 1 1 0 8 1
percpumem 16 30 0 0 1 0 1 1 0 8 0
vmpool 552 8 0 8 3 3 0 1 0 8 0
scsiplug 64 1 0 1 1 1 0 1 0 8 0
scxspl 192 9294 0 9294 10 9 1 7 0 8 1
plimitpl 152 55 0 47 1 0 1 1 0 8 0
sigapl 432 756 0 740 3 1 2 3 0 8 0
futexpl 56 14727 0 14727 1 0 1 1 0 8 1
knotepl 112 270 0 251 3 2 1 3 0 8 0
kqueuepl 104 151 0 149 1 0 1 1 0 8 0
pipepl 112 440 0 421 1 0 1 1 0 8 0
fdescpl 488 757 0 740 3 0 3 3 0 8 0
filepl 152 7612 0 7504 15 9 6 11 0 8 1
lockfpl 104 207 0 206 1 0 1 1 0 8 0
lockfspl 48 70 0 69 1 0 1 1 0 8 0
sessionpl 112 23 0 12 1 0 1 1 0 8 0
pgrppl 48 24 0 13 1 0 1 1 0 8 0
ucredpl 96 1945 0 1936 1 0 1 1 0 8 0
zombiepl 144 740 0 740 1 0 1 1 0 8 1
processpl 896 773 0 740 4 0 4 4 0 8 0
procpl 632 2169 0 2125 5 0 5 5 0 8 1
srpgc 64 6 0 6 3 2 1 1 0 8 1
sosppl 128 246 0 243 2 1 1 1 0 8 0
sockpl 384 2315 0 2290 22 15 7 15 0 8 4
mcl64k 65536 8 0 0 1 0 1 1 0 8 0
mcl16k 16384 8 0 0 1 0 1 1 0 8 0
mcl12k 12288 5 0 0 1 0 1 1 0 8 0
mcl9k 9216 4 0 0 1 0 1 1 0 8 0
mcl8k 8192 7 0 0 1 0 1 1 0 8 0
mcl4k 4096 8 0 0 1 0 1 1 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 174 0 0 21 0 21 21 0 8 0
mtagpl 80 23 0 0 1 0 1 1 0 8 0
mbufpl 256 393 0 0 21 0 21 21 0 8 0
bufpl 256 7416 0 1318 382 0 382 382 0 8 0
anonpl 16 110112 0 94806 107 20 87 93 0 124 9
amapchunkpl 152 5796 0 5654 21 13 8 14 0 158 0
amappl16 192 4099 0 3066 75 21 54 63 0 8 2
amappl15 184 8 0 8 1 1 0 1 0 8 0
amappl14 176 67 0 64 1 0 1 1 0 8 0
amappl13 168 1 0 1 1 1 0 1 0 8 0
amappl12 160 20 0 16 1 0 1 1 0 8 0
amappl11 152 298 0 283 1 0 1 1 0 8 0
amappl10 144 140 0 136 1 0 1 1 0 8 0
amappl9 136 809 0 798 1 0 1 1 0 8 0
amappl8 128 365 0 327 2 0 2 2 0 8 0
amappl7 120 182 0 176 1 0 1 1 0 8 0
amappl6 112 282 0 271 1 0 1 1 0 8 0
amappl5 104 168 0 151 1 0 1 1 0 8 0
amappl4 96 1027 0 992 2 1 1 2 0 8 0
amappl3 88 129 0 123 1 0 1 1 0 8 0
amappl2 80 4883 0 4801 3 1 2 3 0 8 0
amappl1 72 27528 0 27078 26 16 10 20 0 8 0
amappl 80 2501 0 2449 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
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 17 0 17 1 1 0 1 0 8 0
aobjpl 64 36 0 0 1 0 1 1 0 8 0
uaddrrnd 24 765 0 740 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 765 0 740 1 0 1 1 0 8 0
vmmpekpl 168 10910 0 10879 2 0 2 2 0 8 0
vmmpepl 168 104200 0 101898 196 59 137 170 0 357 36
vmsppl 368 756 0 740 2 0 2 2 0 8 0
pdppl 4096 1537 0 1496 6 0 6 6 0 8 0
pvpl 32 306633 0 288047 238 24 214 221 0 265 32
pmappl 232 764 0 748 6 5 1 2 0 8 0
extentpl 40 41 0 26 1 0 1 1 0 8 0
phpool 112 562 0 11 16 0 16 16 0 8 0