login: uvm_fault(0xfffffd806e8d9a18, 0x110, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at mrt_ioctl+0x35: movl 0x110(%r13),%eax
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
kernel page fault
uvm_fault(0xfffffd806e8d9a18, 0x110, 0, 1) -> e
mrt_ioctl(fffffd806ea8c908,c0287533,ffff800020ba72c0) at mrt_ioctl+0x35 sys/netinet/ip_mroute.c:262
end trace frame: 0xffff800020ba73c0, count: 0
ddb{0}> trace
mrt_ioctl(fffffd806ea8c908,c0287533,ffff800020ba72c0) at mrt_ioctl+0x35 sys/netinet/ip_mroute.c:262
sys_ioctl(ffff800020b85120,ffff800020ba73d8,ffff800020ba7440) at sys_ioctl+0x5b8
syscall(ffff800020ba74b0) at syscall+0x552 mi_syscall sys/sys/syscall_mi.h:90 [inline]
syscall(ffff800020ba74b0) at syscall+0x552 sys/arch/amd64/amd64/trap.c:554
Xsyscall(6,0,524d28d3000,0,7f7fffffaf38,7f7fffffaf28) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffaeb0, count: -4
ddb{0}> show registers
rdi 0xfffffd806ea8c908
rsi 0xc0287533
rbp 0xffff800020ba72b0
rbx 0xffff800020ba72c0
rdx 0xffff800020ba72c0
rcx 0x2
rax 0xc0287533
r8 0xffffffff816a9630 in_control+0x30
r9 0x7
r10 0x304a699bdbf987da
r11 0xcfb596645a1e0322
r12 0xfffffd806ea8c908
r13 0
r14 0xffff800020b85120
r15 0xc0287533
rip 0xffffffff819bd9f5 mrt_ioctl+0x35
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800020ba7250
ss 0x10
mrt_ioctl+0x35: movl 0x110(%r13),%eax
ddb{0}> show proc
PROC (syz-executor7763) pid=153833 stat=onproc
flags process=2<EXEC> proc=0
pri=52, usrpri=52, nice=20
forw=0xffffffffffffffff, list=0xffff800020b84280,0xffffffff8239ddd0
process=0xffff800020b8d080 user=0xffff800020ba2000, vmspace=0xfffffd806e8d9a18
estcpu=2, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*64530 153833 82 0 7 0x2 syz-executor7763
82 41255 4842 0 3 0x10008a pause ksh
4842 321022 89263 0 7 0x12 sshd
68450 320935 1 0 3 0x100083 ttyin getty
89263 445803 1 0 3 0x80 select sshd
88164 246998 64698 73 2 0x100090 syslogd
64698 390397 1 0 3 0x100082 netio syslogd
32868 353400 1 77 3 0x100090 poll dhclient
35835 239090 1 0 3 0x80 poll dhclient
62868 391343 0 0 2 0x14200 zerothread
78792 49546 0 0 3 0x14200 aiodoned aiodoned
89879 425894 0 0 3 0x14200 syncer update
86419 290332 0 0 3 0x14200 cleaner cleaner
24136 201536 0 0 3 0x14200 reaper reaper
67862 517514 0 0 3 0x14200 pgdaemon pagedaemon
44010 206150 0 0 3 0x14200 bored crynlk
79932 155527 0 0 3 0x14200 bored crypto
37622 25746 0 0 3 0x40014200 acpi0 acpi0
88736 516607 0 0 3 0x40014200 idle1
59112 469557 0 0 3 0x14200 bored softnet
55298 213957 0 0 3 0x14200 bored systqmp
80245 74659 0 0 3 0x14200 bored systq
45390 83615 0 0 2 0x40014200 softclock
6184 232300 0 0 3 0x40014200 idle0
8830 57632 0 0 3 0x14200 bored smr
1 304446 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 64530 (syz-executor7763) thread 0xffff800020b85120 (153833)
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82388510)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1161
#1 syscall+0x412 mi_syscall sys/sys/syscall_mi.h:81 [inline]
#1 syscall+0x412 sys/arch/amd64/amd64/trap.c:554
#2 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9442 6316K 6317K 78643K 10529 0 0
pcb 23 9K 9K 78643K 55 0 0
rtable 61 2K 2K 78643K 115 0 0
ifaddr 21 7K 7K 78643K 21 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 2K 78643K 13 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1174 74K 74K 78643K 1179 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 1K 78643K 2 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12628 0 0
file desc 1 0K 0K 78643K 1 0 0
proc 40 38K 46K 78643K 207 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 11 0K 0K 78643K 11 0 0
ether_multi 1 0K 0K 78643K 1 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 18 79K 79K 78643K 18 0 0
exec 0 0K 1K 78643K 152 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 51 2K 3K 78643K 703 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
NDP 3 0K 0K 78643K 3 0 0
temp 30 2715K 2779K 78643K 1720 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 2 0 0 1 0 1 1 0 8 0
inpcbpl 280 23 0 17 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
syncache 264 5 0 5 1 0 1 1 0 8 1
tcpcb 544 9 0 5 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 97 0 0 7 0 7 7 0 8 0
art_table 32 98 0 0 1 0 1 1 0 8 0
art_node 16 22 0 2 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1385 0 16 45 0 45 45 0 8 0
ffsino 272 1385 0 16 92 0 92 92 0 8 0
nchpl 144 1558 0 30 57 0 57 57 0 8 0
uvmvnodes 72 1394 0 0 26 0 26 26 0 8 0
vnodes 200 1394 0 0 74 0 74 74 0 8 0
namei 1024 3280 0 3280 2 1 1 1 0 8 1
percpumem 16 30 0 0 1 0 1 1 0 8 0
scxspl 192 2386 0 2386 8 7 1 6 0 8 1
plimitpl 152 13 0 8 1 0 1 1 0 8 0
sigapl 432 176 0 166 2 0 2 2 0 8 0
knotepl 112 5 0 0 1 0 1 1 0 8 0
kqueuepl 104 1 0 0 1 0 1 1 0 8 0
pipepl 112 118 0 111 2 1 1 1 0 8 0
fdescpl 488 177 0 166 2 0 2 2 0 8 0
filepl 152 817 0 774 2 0 2 2 0 8 0
lockfpl 104 6 0 6 1 1 0 1 0 8 0
lockfspl 48 3 0 3 1 1 0 1 0 8 0
sessionpl 112 17 0 9 1 0 1 1 0 8 0
pgrppl 48 17 0 9 1 0 1 1 0 8 0
ucredpl 96 47 0 40 1 0 1 1 0 8 0
zombiepl 144 166 0 166 2 1 1 1 0 8 1
processpl 840 192 0 166 4 0 4 4 0 8 0
procpl 624 192 0 166 3 0 3 3 0 8 0
sockpl 384 65 0 48 2 0 2 2 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 56 0 0 7 0 7 7 0 8 0
mtagpl 80 1 0 0 1 0 1 1 0 8 0
mbufpl 256 77 0 0 5 0 5 5 0 8 0
bufpl 256 2054 0 258 113 0 113 113 0 8 0
anonpl 16 17436 0 16317 7 1 6 6 0 125 1
amapchunkpl 152 491 0 456 2 0 2 2 0 158 0
amappl16 192 76 0 71 1 0 1 1 0 8 0
amappl14 176 14 0 13 2 1 1 1 0 8 0
amappl12 160 7 0 7 1 0 1 1 0 8 1
amappl11 152 44 0 30 1 0 1 1 0 8 0
amappl10 144 45 0 45 2 1 1 1 0 8 1
amappl9 136 370 0 369 1 0 1 1 0 8 0
amappl8 128 86 0 82 1 0 1 1 0 8 0
amappl7 120 17 0 15 1 0 1 1 0 8 0
amappl6 112 41 0 37 1 0 1 1 0 8 0
amappl5 104 137 0 127 1 0 1 1 0 8 0
amappl4 96 315 0 296 1 0 1 1 0 8 0
amappl3 88 154 0 144 1 0 1 1 0 8 0
amappl2 80 728 0 679 3 1 2 2 0 8 0
amappl1 72 11657 0 11272 14 4 10 14 0 8 0
amappl 80 369 0 350 1 0 1 1 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 1 0 0 1 0 1 1 0 8 0
uaddrrnd 24 177 0 166 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 177 0 166 1 0 1 1 0 8 0
vmmpekpl 168 5274 0 5255 1 0 1 1 0 8 0
vmmpepl 168 25093 0 24369 51 15 36 44 0 357 4
vmsppl 368 176 0 166 2 0 2 2 0 8 0
pdppl 4096 362 0 332 5 0 5 5 0 8 0
pvpl 32 71325 0 68578 31 4 27 27 0 265 4
pmappl 232 176 0 166 1 0 1 1 0 8 0
extentpl 40 41 0 26 1 0 1 1 0 8 0
phpool 112 244 0 3 7 0 7 7 0 8 0