uvm_fault(0xffffffff83ad7858, 0xffff80000161402a, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*126375 59793 0 0 0x4000000 0 syz-executor
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff800035cc55b0,0,ffff800035cc5520,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff800001623800,ffff800035cc5658,ffff800035cc55b0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(ffffee007eeea200,ffff800010fe1378) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800010fe1378,ffffee007eeea200,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800010fe1378,0,ffff800035cc5808,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a76a018,4,ffff800035cc5900,808,ffff800035cc59a0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a76a018,ffff800035cc5a50,ffff800035cc59a0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff800035cc5a50) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035cc5a50) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bfea2b3dd0, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xffffffff83ad7858, 0xffff80000161402a, 0, 1) -> e
ddb> show kasan
No such command
ddb> trace
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff800035cc55b0,0,ffff800035cc5520,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff800001623800,ffff800035cc5658,ffff800035cc55b0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(ffffee007eeea200,ffff800010fe1378) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800010fe1378,ffffee007eeea200,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800010fe1378,0,ffff800035cc5808,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a76a018,4,ffff800035cc5900,808,ffff800035cc59a0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a76a018,ffff800035cc5a50,ffff800035cc59a0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff800035cc5a50) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035cc5a50) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bfea2b3dd0, count: -10
ddb> show registers
rdi 0xffff80002ccae000
rsi 0x950
rbp 0xffff800035cc5400
rbx 0xde
rdx 0xffff80002ccae000
rcx 0xffff800001613f40
rax 0xffffee007eeeaee0
r8 0x1000 __ALIGN_SIZE
r9 0
r10 0x45b38e3aa0588d70
r11 0xcb9ce3b1d4b2d81c
r12 0x19
r13 0xffffee007eeeae00
r14 0xffffee0062bd5c50
r15 0xffff8000002a3058
rip 0xffffffff820e2344 arp_rtrequest+0x6a4
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800035cc5380
ss 0x10
arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx
ddb> show proc
PROC (syz-executor) tid=126375 pid=59793 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=86, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a76afa8,0xffffffff83a1bcc8
process=0xffff8000380d9698 user=0xffff800035cc0000, vmspace=0xffffee006d196e70
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
59793 154897 94289 0 2 0 0 syz-executor
*59793 126375 94289 0 7 0 0x4000000 syz-executor
55325 119944 67707 0 2 0 0 syz-executor
55325 435708 67707 0 3 0 0x4000080 kqsel syz-executor
68713 250870 94618 0 2 0 0 syz-executor
68713 127364 94618 0 2 0 0x4000000 syz-executor
54235 491835 47000 0 2 0 0 syz-executor
54235 120141 47000 0 2 0 0x4000000 syz-executor
19613 339832 84572 0 2 0 0 syz-executor
19613 172095 84572 0 3 0 0x4000080 fsleep syz-executor
75407 193974 26880 0 2 0x2 0 syz-executor
47000 481567 26880 0 2 0x2 0xc80 syz-executor
48073 406625 26880 0 2 0x2 0 syz-executor
68831 123285 26880 0 2 0x2 0 syz-executor
94618 382158 26880 0 2 0x2 0xc80 syz-executor
84572 391532 26880 0 2 0x2 0xc80 syz-executor
94289 312336 26880 0 2 0x2 0xc80 syz-executor
67707 242710 26880 0 2 0x2 0xc80 syz-executor
26880 422902 77511 0 3 0x2 0x80 kqread syz-executor
77511 137997 82719 0 3 0x100002 0x88 sigsusp ksh
82719 217903 52427 0 3 0x10 0x88 kqread sshd-session
52427 232808 41961 0 3 0x12 0x80 kqread sshd-session
13803 498532 1 0 3 0x100003 0x80 ttyin getty
41961 318805 1 0 3 0 0x88 kqread sshd
39584 421390 8625 73 3 0x1100010 0x80 kqread syslogd
8625 517902 1 0 3 0x100002 0x80 sbwait syslogd
43007 468038 1 0 3 0x100000 0x80 kqread resolvd
56636 325215 8217 77 3 0x100012 0x80 kqread dhcpleased
81430 439903 8217 77 3 0x100012 0x80 kqread dhcpleased
8217 24546 1 0 3 0 0x80 kqread dhcpleased
85052 420536 0 0 3 0x14000 0x200 bored smr
22138 95277 0 0 2 0x14000 0x200 zerothread
96407 398171 0 0 3 0x14000 0x200 aiodoned aiodoned
37389 228869 0 0 3 0x14000 0x200 syncer update
99182 137026 0 0 3 0x14000 0x200 cleaner cleaner
3233 339420 0 0 3 0x14000 0x200 reaper reaper
78342 20964 0 0 3 0x14000 0x200 pgdaemon pagedaemon
85671 148267 0 0 3 0x14000 0x200 bored viomb
12190 518637 0 0 3 0x14000 0x40000200 acpi0 acpi0
41163 59744 0 0 2 0x14000 0x200 softnet0
32558 442752 0 0 3 0x14000 0x200 smrbar systqmp
20100 511627 0 0 3 0x14000 0x200 bored systq
62350 176788 0 0 3 0x14000 0x40000200 tmoslp softclock
61079 451596 0 0 3 0x14000 0x40000200 idle0
1 209656 0 0 3 0x2 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11026 12110K 12305K 166960K 12135 0
pcb 17 12K 12K 166960K 24 0
rtable 248 8K 8K 166960K 374 0
pf 30 12K 12K 166960K 30 0
ifaddr 42 7K 7K 166960K 44 0
ifgroup 50 2K 2K 166960K 50 0
sysctl 1 1K 9K 166960K 5 0
counters 33 17K 17K 166960K 33 0
ioctlops 0 0K 2K 166960K 29 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1288 81K 81K 166960K 1358 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 1K 166960K 2 0
VM map 2 1K 1K 166960K 2 0
sem 2 0K 0K 166960K 2 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 15 53K 89K 166960K 156 0
sigio 0 0K 0K 166960K 1 0
proc 58 59K 100K 166960K 496 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 1 0
in_multi 99 7K 7K 166960K 99 0
ether_multi 1 0K 0K 166960K 2 0
mrt 0 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 31 148K 148K 166960K 31 0
exec 0 0K 1K 166960K 369 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 199 158K 172K 166960K 3043 0
UVM aobj 3 2K 2K 166960K 3 0
pinsyscall 36 72K 94K 166960K 1266 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 3 0
NDP 13 0K 1K 166960K 27 0
temp 35 9106K 9114K 166960K 3678 0
kqueue 13 20K 21K 166960K 27 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 41 0 36 1 0 1 1 0 8 0
rtentry 136 113 0 1 4 0 4 4 0 8 0
unpcb 144 52 0 37 1 0 1 1 0 8 0
syncache 336 4 0 4 1 0 1 1 0 8 1
tcpcb 736 12 0 6 1 0 1 1 0 8 0
arp 96 18 0 0 1 0 1 1 0 8 0
inpcb 328 78 0 69 2 0 2 2 0 8 1
nd6 112 25 0 0 1 0 1 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 466 0 0 30 0 30 30 0 8 0
art_table 40 468 0 0 5 0 5 5 0 8 0
art_node 32 113 0 10 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1577 0 119 92 0 92 92 0 8 0
ffsino 256 1577 0 119 92 0 92 92 0 8 0
nchpl 144 1795 0 109 63 0 63 63 0 8 0
vnodes 216 1663 0 0 93 0 93 93 0 8 0
namei 1024 5273 0 5272 2 0 2 2 0 8 1
kstatmem 264 23 0 0 2 0 2 2 0 8 0
scxspl 216 6034 0 6034 4 0 4 4 1 8 4
plimitpl 152 30 0 14 1 0 1 1 0 8 0
sigapl 424 454 0 414 6 0 6 6 0 8 1
knotepl 120 3293 0 3246 2 0 2 2 0 8 0
kqueuepl 184 26 0 16 1 0 1 1 0 8 0
pipepl 304 124 0 97 3 0 3 3 0 8 0
fdescpl 448 441 0 414 5 0 5 5 0 8 1
filepl 120 1522 0 1313 7 0 7 7 0 8 0
lockfpl 104 17 0 15 1 0 1 1 0 8 0
lockfspl 48 9 0 7 1 0 1 1 0 8 0
sessionpl 144 23 0 15 1 0 1 1 0 8 0
pgrppl 48 31 0 15 1 0 1 1 0 8 0
ucredpl 104 88 0 77 1 0 1 1 0 8 0
zombiepl 144 414 0 414 1 0 1 1 0 8 1
processpl 1152 454 0 414 4 0 4 4 0 8 0
procpl 664 494 0 449 5 0 5 5 0 8 0
sockpl 552 171 0 142 3 0 3 3 0 8 0
mcl16k 16384 1 0 1 1 0 1 1 0 8 1
mcl8k 8192 5 0 5 1 0 1 1 0 8 1
mcl4k 4096 2522 0 2470 14 0 14 14 0 8 7
mcl2k 2048 138 0 121 3 0 3 3 0 8 0
mextrefs 64 71 0 54 1 0 1 1 0 8 0
mtagpl 96 4 0 4 1 0 1 1 0 8 1
mbufpl 256 4588 0 4396 13 0 13 13 0 8 1
bufpl 272 2248 0 102 144 0 144 144 0 8 0
anonpl 24 79604 0 76664 20 0 20 20 0 187 0
amapchunkpl 152 8284 0 7886 24 0 24 24 0 158 7
amappl16 200 1084 0 1066 4 0 4 4 0 8 3
amappl15 192 33 0 33 1 0 1 1 0 8 1
amappl14 184 411 0 410 1 0 1 1 0 8 0
amappl13 176 113 0 103 1 0 1 1 0 8 0
amappl12 168 679 0 653 2 0 2 2 0 8 0
amappl11 160 3 0 3 1 0 1 1 0 8 1
amappl10 152 81 0 71 1 0 1 1 0 8 0
amappl9 144 268 0 268 1 0 1 1 0 8 1
amappl8 136 120 0 119 1 0 1 1 0 8 0
amappl7 128 141 0 130 1 0 1 1 0 8 0
amappl6 120 153 0 152 1 0 1 1 0 8 0
amappl5 112 104 0 97 1 0 1 1 0 8 0
amappl4 104 262 0 245 1 0 1 1 0 8 0
amappl3 96 1510 0 1418 3 0 3 3 0 8 0
amappl2 88 527 0 475 2 0 2 2 0 8 0
amappl1 80 10226 0 9680 13 0 13 13 0 8 0
amappl 88 2346 0 2210 4 0 4 4 0 92 0
uvmvnodes 80 96 0 0 2 0 2 2 0 8 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 441 0 414 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 441 0 414 1 0 1 1 0 8 0
vmmpekpl 168 5510 0 5482 2 0 2 2 0 8 0
vmmpepl 168 36984 0 35337 79 0 79 79 0 357 4
vmsppl 368 440 0 414 4 0 4 4 0 8 1
rwobjpl 40 13549 0 12651 11 0 11 11 0 8 1
pdppl 4096 888 0 828 92 26 66 78 0 8 6
pvpl 32 203572 0 195606 71 0 71 71 0 265 2
pmappl 216 440 0 414 2 0 2 2 0 8 0
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 503 0 26 14 0 14 14 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff800035cc55b0,0,ffff800035cc5520,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff800001623800,ffff800035cc5658,ffff800035cc55b0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(ffffee007eeea200,ffff800010fe1378) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800010fe1378,ffffee007eeea200,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800010fe1378,0,ffff800035cc5808,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a76a018,4,ffff800035cc5900,808,ffff800035cc59a0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a76a018,ffff800035cc5a50,ffff800035cc59a0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff800035cc5a50) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035cc5a50) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bfea2b3dd0, count: -10
ddb> machine ddbcpu 1
No such command
ddb> trace
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a3058,1,ffffee0062bd5c50) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff800035cc55b0,0,ffff800035cc5520,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff800001623800,ffff800035cc5658,ffff800035cc55b0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(ffffee007eeea200,ffff800010fe1378) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800010fe1378,ffffee007eeea200,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800010fe1378,0,ffff800035cc5808,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002a76a018,4,ffff800035cc5900,808,ffff800035cc59a0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002a76a018,ffff800035cc5a50,ffff800035cc59a0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff800035cc5a50) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035cc5a50) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bfea2b3dd0, count: -10