uvm_fault: strcmp
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syzbot
Mar 7, 2024, 5:52:27 AMMar 7
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 17449d5ce459 Add SPI clocks for other 64-bit Rockchip SoCs.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=14b7aea6180000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=3a0fb6c009b6265b07d4
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6b3ea0215fde/disk-17449d5c.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/b599e3b1ef99/bsd-17449d5c.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/fc303ce54b2c/kernel-17449d5c.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3a0fb6...@syzkaller.appspotmail.com
uvm_fault(0xfffffd805d261030, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at strcmp+0x50: movq 0x8(%rdi),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 7863 43873 0 0 0x4000000 0 syz-executor.6
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: 8
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(0xfffffd805d261030, 0x0, 0, 1) -> e
ddb> trace
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: -7
ddb> show registers
rdi 0xfffffffffffffff8
rsi 0xffff80002d9230b8
rbp 0xffff80002d922e60
rbx 0xffff800000df0680
rdx 0
rcx 0x1
rax 0xffff80002a63c000
r8 0x101010101010101
r9 0x8080808080808080
r10 0x829ae0964f546353
r11 0xa2f1102cdf62681c
r12 0xfffffffc
r13 0x8020426c __kernel_virt_to_phys+0x20426c
r14 0
r15 0xffff80002d9230c0
rip 0xffffffff81a1f5d0 strcmp+0x50
cs 0x8
rflags 0x10296 __ALIGN_SIZE+0xf296
rsp 0xffff80002d922e08
ss 0x10
strcmp+0x50: movq 0x8(%rdi),%rax
ddb> show proc
PROC (syz-executor.6) tid=7863 pid=43873 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=80, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a63c550,0xffffffff82d73440
process=0xffff8000ffff8868 user=0xffff80002d91e000, vmspace=0xfffffd805d261030
estcpu=30, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
43873 471803 81688 0 2 0 syz-executor.6
*43873 7863 81688 0 7 0x4000000 syz-executor.6
80166 128125 11623 0 2 0 syz-executor.7
80166 491654 11623 0 3 0x4000080 ttyin syz-executor.7
80166 9541 11623 0 3 0x4000080 fsleep syz-executor.7
72153 13424 57921 0 3 0x80 nanoslp syz-executor.4
72153 162534 57921 0 3 0x4000080 fsleep syz-executor.4
72153 162378 57921 0 3 0x4000080 fsleep syz-executor.4
21446 214848 21121 0 2 0x2 syz-executor.2
64196 268656 21121 0 2 0x2 syz-executor.3
11623 69983 21121 0 3 0x82 nanoslp syz-executor.7
81688 281910 21121 0 3 0x82 nanoslp syz-executor.6
57921 164409 21121 0 3 0x82 nanoslp syz-executor.4
53714 308102 21121 0 2 0x2 syz-executor.5
1939 43935 1 0 3 0x100083 ttyin getty
60998 388489 0 0 3 0x14280 nfsidl nfsio
60349 165600 0 0 3 0x14280 nfsidl nfsio
25163 34711 0 0 3 0x14280 nfsidl nfsio
5371 519561 0 0 3 0x14280 nfsidl nfsio
96598 161311 0 0 3 0x14280 nfsidl nfsio
35128 243153 0 0 3 0x14280 nfsidl nfsio
58394 386976 0 0 3 0x14280 nfsidl nfsio
32250 83605 0 0 3 0x14280 nfsidl nfsio
66325 516794 0 0 3 0x14280 nfsidl nfsio
34477 107107 0 0 3 0x14280 nfsidl nfsio
80496 14793 0 0 3 0x14280 nfsidl nfsio
39073 25668 0 0 3 0x14280 nfsidl nfsio
51747 392931 0 0 3 0x14280 nfsidl nfsio
48795 366102 0 0 3 0x14280 nfsidl nfsio
43070 491929 0 0 3 0x14280 nfsidl nfsio
80511 145591 0 0 3 0x14280 nfsidl nfsio
88882 268197 0 0 3 0x14280 nfsidl nfsio
95116 271279 0 0 3 0x14280 nfsidl nfsio
88079 74613 0 0 3 0x14280 nfsidl nfsio
67243 513202 0 0 3 0x14280 nfsidl nfsio
29056 49176 21121 0 3 0x82 nanoslp syz-executor.1
16107 451472 21121 0 2 0x2 syz-executor.0
6039 139048 1 0 3 0x80 fsleep syz-executor.1
6039 238973 1 0 3 0x4000080 ttyin syz-executor.1
6039 314336 1 0 3 0x4000080 fsleep syz-executor.1
6039 241809 1 0 3 0x4000080 fsleep syz-executor.1
90824 177266 1 0 3 0x80 fsleep syz-executor.2
90824 35243 1 0 3 0x4000080 ttyin syz-executor.2
51190 220525 0 0 3 0x14200 acct acct
85765 329048 0 0 3 0x14200 bored sosplice
21121 263567 13901 0 3 0x2000082 wait syz-fuzzer
21121 46738 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 412523 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 444505 13901 0 3 0x6000082 wait syz-fuzzer
21121 296879 13901 0 3 0x6000082 kqread syz-fuzzer
21121 396953 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 354121 13901 0 3 0x6000082 wait syz-fuzzer
21121 134979 13901 0 3 0x6000082 wait syz-fuzzer
21121 306783 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 426299 13901 0 3 0x6000082 wait syz-fuzzer
21121 503284 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 367724 13901 0 3 0x6000082 wait syz-fuzzer
21121 252614 13901 0 3 0x6000082 wait syz-fuzzer
21121 498511 13901 0 3 0x6000082 wait syz-fuzzer
13901 206165 71004 0 3 0x10008a sigsusp ksh
71004 458793 18004 0 3 0x9a kqread sshd
18004 253534 1 0 3 0x88 kqread sshd
17509 79959 11078 73 3 0x1100090 kqread syslogd
11078 408655 1 0 3 0x100082 netio syslogd
93454 81097 1 0 3 0x100080 kqread resolvd
33432 351172 40032 77 3 0x100092 kqread dhcpleased
48221 45673 40032 77 3 0x100092 kqread dhcpleased
40032 353857 1 0 3 0x80 kqread dhcpleased
8677 117864 0 0 3 0x14200 bored smr
36327 103455 0 0 2 0x14200 zerothread
71012 195625 0 0 3 0x14200 aiodoned aiodoned
50235 3549 0 0 3 0x14200 syncer update
16318 84568 0 0 3 0x14200 cleaner cleaner
7180 321327 0 0 3 0x14200 reaper reaper
35778 439202 0 0 3 0x14200 pgdaemon pagedaemon
65987 150579 0 0 3 0x14200 bored viomb
5361 523924 0 0 3 0x40014200 acpi0 acpi0
16150 204822 0 0 3 0x14200 bored softnet3
47293 114880 0 0 3 0x14200 bored softnet2
2491 57979 0 0 3 0x14200 bored softnet1
80429 88519 0 0 3 0x14200 bored softnet0
10022 108531 0 0 3 0x14200 bored systqmp
61404 120359 0 0 3 0x14200 bored systq
15148 185431 0 0 2 0x40014200 softclock
9243 331086 0 0 3 0x40014200 idle0
1 345649 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10203 6420K 7388K 166960K 46555 0
pcb 15 16K 18K 166960K 1032 0
rtable 185 13K 15K 166960K 3723 0
pf 30 9K 9K 166960K 458 0
ifaddr 35 11K 13K 166960K 468 0
ifgroup 51 2K 2K 166960K 757 0
sysctl 3 0K 0K 166960K 7 0
counters 30 17K 17K 166960K 226 0
ioctlops 0 0K 2K 166960K 711 0
iov 0 0K 24K 166960K 1604 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1626 102K 102K 166960K 10743 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 179 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 1900 0
dirhash 12 2K 2K 166960K 99 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 15 53K 81K 166960K 14158 0
sigio 0 0K 0K 166960K 565 0
proc 58 59K 75K 166960K 2844 0
subproc 130 8K 8K 166960K 1027 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 574 0
in_multi 69 5K 7K 166960K 986 0
ether_multi 1 0K 0K 166960K 4 0
mrt 0 0K 0K 166960K 7 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 247 1102K 1102K 166960K 247 0
exec 0 0K 1K 166960K 2765 0
pfkey data 0 0K 0K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 427 303K 320K 166960K 129651 0
UVM aobj 131 8K 8K 166960K 131 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 366 0
NDP 11 0K 1K 166960K 368 0
temp 83 6764K 7118K 166960K 121278 0
kqueue 12 18K 26K 166960K 942 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 1011 0 1008 8 5 3 5 0 8 2
rtentry 112 1018 0 936 4 0 4 4 0 8 0
unpcb 144 8354 0 8338 30 22 8 11 0 8 7
syncache 336 118 0 118 3 2 1 1 0 8 1
tcpqe 32 154 0 154 3 2 1 1 0 8 1
tcpcb 808 4535 0 4525 30 21 9 12 0 8 7
arp 88 186 0 172 1 0 1 1 0 8 0
ipq 40 17 0 16 2 1 1 1 0 8 0
ipqe 40 53 0 52 2 1 1 1 0 8 0
inpcb 360 10381 0 10368 57 47 10 17 0 8 8
nd6 104 254 0 240 1 0 1 1 0 8 0
pkpcb 40 106 0 106 3 2 1 1 0 8 1
kcovpl 48 79 0 69 1 0 1 1 0 8 0
ppxss 1072 57 0 57 3 2 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 4015 0 3669 51 22 29 30 0 8 3
art_table 32 4016 0 3669 4 0 4 4 0 8 0
art_node 16 1013 0 937 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0
semapl 112 1898 0 1888 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 75 0 58 3 0 3 3 0 8 0
dino2pl 256 19187 0 17689 95 0 95 95 0 8 0
ffsino 240 19187 0 17689 89 0 89 89 0 8 0
nchpl 144 37422 0 35786 63 0 63 63 0 8 1
uvmvnodes 80 6077 0 0 125 0 125 125 0 8 0
vnodes 216 6077 0 0 338 0 338 338 0 8 0
namei 1024 126582 0 126579 8 6 2 3 0 8 1
vcpupl 2048 58 0 2 8 0 8 8 0 8 0
vmpool 664 93 0 37 5 0 5 5 0 8 0
kstatmem 264 414 0 392 2 0 2 2 0 8 0
scxspl 216 123390 0 123390 14 10 4 8 1 8 4
plimitpl 152 1477 0 1458 1 0 1 1 0 8 0
sigapl 424 14495 0 14430 8 0 8 8 0 8 0
futexpl 64 119481 0 119474 1 0 1 1 0 8 0
knotepl 120 175917 0 175835 36 25 11 18 0 8 8
kqueuepl 184 2189 0 2181 12 6 6 6 0 8 5
pipepl 288 2329 0 2299 19 12 7 7 0 8 4
fdescpl 432 14297 0 14271 4 0 4 4 0 8 0
filepl 120 76657 0 76380 39 22 17 18 0 8 6
lockfpl 104 7130 0 7127 2 0 2 2 0 8 1
lockfspl 48 3109 0 3106 1 0 1 1 0 8 0
sessionpl 144 93 0 75 1 0 1 1 0 8 0
pgrppl 48 183 0 165 1 0 1 1 0 8 0
ucredpl 104 10506 0 10492 1 0 1 1 0 8 0
zombiepl 144 14431 0 14430 2 1 1 1 0 8 0
processpl 1072 14495 0 14430 5 0 5 5 0 8 0
procpl 680 35171 0 35084 14 4 10 10 0 8 1
sosppl 168 121 0 121 3 2 1 1 0 8 1
sockpl 488 19874 0 19842 327 314 13 37 0 8 7
mcl64k 65536 559 0 559 4 3 1 1 0 8 1
mcl16k 16384 222 0 222 4 3 1 1 0 8 1
mcl12k 12288 549 0 549 4 3 1 1 0 8 1
mcl9k 9216 405 0 405 4 3 1 1 0 8 1
mcl8k 8192 1011 0 1010 7 6 1 1 0 8 0
mcl4k 4096 1403 0 1403 7 6 1 1 0 8 1
mcl2k2 2112 99 0 99 4 3 1 1 0 8 1
mcl2k 2048 100412 0 100374 39 26 13 30 0 8 7
mtagpl 96 4079 0 3767 20 0 20 20 0 8 6
mbufpl 256 282055 0 281630 530 474 56 275 0 8 8
bufpl 280 27984 0 21592 457 0 457 457 0 8 0
anonpl 24 1450067 0 1435439 168 49 119 119 0 188 12
amapchunkpl 152 409399 0 408551 66 16 50 50 0 158 10
amappl16 200 30341 0 29851 113 79 34 40 0 8 7
amappl15 192 111 0 110 1 0 1 1 0 8 0
amappl14 184 366 0 354 2 1 1 2 0 8 0
amappl13 176 43 0 43 2 1 1 1 0 8 1
amappl12 168 15987 0 15959 2 0 2 2 0 8 0
amappl11 160 51 0 41 1 0 1 1 0 8 0
amappl10 152 157 0 143 1 0 1 1 0 8 0
amappl9 144 214 0 214 1 0 1 1 0 8 1
amappl8 136 578 0 496 3 0 3 3 0 8 0
amappl7 128 398 0 373 2 0 2 2 0 8 0
amappl6 120 1336 0 1323 1 0 1 1 0 8 0
amappl5 112 357 0 348 1 0 1 1 0 8 0
amappl4 104 890 0 864 2 1 1 2 0 8 0
amappl3 96 80761 0 80665 4 0 4 4 0 8 0
amappl2 88 15504 0 15430 3 1 2 3 0 8 0
amappl1 80 63491 0 62979 22 10 12 22 0 8 0
amappl 88 128339 0 128103 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0
uaddrrnd 24 14390 0 14308 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 14390 0 14308 1 0 1 1 0 8 0
vmmpekpl 168 104340 0 104264 4 0 4 4 0 8 0
vmmpepl 168 869520 0 867222 198 57 141 141 0 357 13
vmsppl 352 14389 0 14308 8 0 8 8 0 8 0
rwobjpl 24 204196 0 196404 49 0 49 49 0 8 0
pdppl 4096 28786 0 28672 955 835 120 125 0 8 6
pvpl 32 4047383 0 4026707 502 261 241 363 0 265 53
pmappl 216 14389 0 14308 5 0 5 5 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1870 0 1422 18 0 18 18 0 8 2
ddb> machine ddbcpu 0
No such command
ddb> trace
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: -7
ddb> machine ddbcpu 1
No such command
ddb> trace
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: -7
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
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If the report is already addressed, let syzbot know by replying with:
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If you want to overwrite report's subsystems, reply with:
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(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 17449d5ce459 Add SPI clocks for other 64-bit Rockchip SoCs.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=14b7aea6180000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=3a0fb6c009b6265b07d4
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6b3ea0215fde/disk-17449d5c.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/b599e3b1ef99/bsd-17449d5c.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/fc303ce54b2c/kernel-17449d5c.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3a0fb6...@syzkaller.appspotmail.com
uvm_fault(0xfffffd805d261030, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at strcmp+0x50: movq 0x8(%rdi),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 7863 43873 0 0 0x4000000 0 syz-executor.6
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: 8
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(0xfffffd805d261030, 0x0, 0, 1) -> e
ddb> trace
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: -7
ddb> show registers
rdi 0xfffffffffffffff8
rsi 0xffff80002d9230b8
rbp 0xffff80002d922e60
rbx 0xffff800000df0680
rdx 0
rcx 0x1
rax 0xffff80002a63c000
r8 0x101010101010101
r9 0x8080808080808080
r10 0x829ae0964f546353
r11 0xa2f1102cdf62681c
r12 0xfffffffc
r13 0x8020426c __kernel_virt_to_phys+0x20426c
r14 0
r15 0xffff80002d9230c0
rip 0xffffffff81a1f5d0 strcmp+0x50
cs 0x8
rflags 0x10296 __ALIGN_SIZE+0xf296
rsp 0xffff80002d922e08
ss 0x10
strcmp+0x50: movq 0x8(%rdi),%rax
ddb> show proc
PROC (syz-executor.6) tid=7863 pid=43873 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=80, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a63c550,0xffffffff82d73440
process=0xffff8000ffff8868 user=0xffff80002d91e000, vmspace=0xfffffd805d261030
estcpu=30, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
43873 471803 81688 0 2 0 syz-executor.6
*43873 7863 81688 0 7 0x4000000 syz-executor.6
80166 128125 11623 0 2 0 syz-executor.7
80166 491654 11623 0 3 0x4000080 ttyin syz-executor.7
80166 9541 11623 0 3 0x4000080 fsleep syz-executor.7
72153 13424 57921 0 3 0x80 nanoslp syz-executor.4
72153 162534 57921 0 3 0x4000080 fsleep syz-executor.4
72153 162378 57921 0 3 0x4000080 fsleep syz-executor.4
21446 214848 21121 0 2 0x2 syz-executor.2
64196 268656 21121 0 2 0x2 syz-executor.3
11623 69983 21121 0 3 0x82 nanoslp syz-executor.7
81688 281910 21121 0 3 0x82 nanoslp syz-executor.6
57921 164409 21121 0 3 0x82 nanoslp syz-executor.4
53714 308102 21121 0 2 0x2 syz-executor.5
1939 43935 1 0 3 0x100083 ttyin getty
60998 388489 0 0 3 0x14280 nfsidl nfsio
60349 165600 0 0 3 0x14280 nfsidl nfsio
25163 34711 0 0 3 0x14280 nfsidl nfsio
5371 519561 0 0 3 0x14280 nfsidl nfsio
96598 161311 0 0 3 0x14280 nfsidl nfsio
35128 243153 0 0 3 0x14280 nfsidl nfsio
58394 386976 0 0 3 0x14280 nfsidl nfsio
32250 83605 0 0 3 0x14280 nfsidl nfsio
66325 516794 0 0 3 0x14280 nfsidl nfsio
34477 107107 0 0 3 0x14280 nfsidl nfsio
80496 14793 0 0 3 0x14280 nfsidl nfsio
39073 25668 0 0 3 0x14280 nfsidl nfsio
51747 392931 0 0 3 0x14280 nfsidl nfsio
48795 366102 0 0 3 0x14280 nfsidl nfsio
43070 491929 0 0 3 0x14280 nfsidl nfsio
80511 145591 0 0 3 0x14280 nfsidl nfsio
88882 268197 0 0 3 0x14280 nfsidl nfsio
95116 271279 0 0 3 0x14280 nfsidl nfsio
88079 74613 0 0 3 0x14280 nfsidl nfsio
67243 513202 0 0 3 0x14280 nfsidl nfsio
29056 49176 21121 0 3 0x82 nanoslp syz-executor.1
16107 451472 21121 0 2 0x2 syz-executor.0
6039 139048 1 0 3 0x80 fsleep syz-executor.1
6039 238973 1 0 3 0x4000080 ttyin syz-executor.1
6039 314336 1 0 3 0x4000080 fsleep syz-executor.1
6039 241809 1 0 3 0x4000080 fsleep syz-executor.1
90824 177266 1 0 3 0x80 fsleep syz-executor.2
90824 35243 1 0 3 0x4000080 ttyin syz-executor.2
51190 220525 0 0 3 0x14200 acct acct
85765 329048 0 0 3 0x14200 bored sosplice
21121 263567 13901 0 3 0x2000082 wait syz-fuzzer
21121 46738 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 412523 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 444505 13901 0 3 0x6000082 wait syz-fuzzer
21121 296879 13901 0 3 0x6000082 kqread syz-fuzzer
21121 396953 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 354121 13901 0 3 0x6000082 wait syz-fuzzer
21121 134979 13901 0 3 0x6000082 wait syz-fuzzer
21121 306783 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 426299 13901 0 3 0x6000082 wait syz-fuzzer
21121 503284 13901 0 3 0x6000082 thrsleep syz-fuzzer
21121 367724 13901 0 3 0x6000082 wait syz-fuzzer
21121 252614 13901 0 3 0x6000082 wait syz-fuzzer
21121 498511 13901 0 3 0x6000082 wait syz-fuzzer
13901 206165 71004 0 3 0x10008a sigsusp ksh
71004 458793 18004 0 3 0x9a kqread sshd
18004 253534 1 0 3 0x88 kqread sshd
17509 79959 11078 73 3 0x1100090 kqread syslogd
11078 408655 1 0 3 0x100082 netio syslogd
93454 81097 1 0 3 0x100080 kqread resolvd
33432 351172 40032 77 3 0x100092 kqread dhcpleased
48221 45673 40032 77 3 0x100092 kqread dhcpleased
40032 353857 1 0 3 0x80 kqread dhcpleased
8677 117864 0 0 3 0x14200 bored smr
36327 103455 0 0 2 0x14200 zerothread
71012 195625 0 0 3 0x14200 aiodoned aiodoned
50235 3549 0 0 3 0x14200 syncer update
16318 84568 0 0 3 0x14200 cleaner cleaner
7180 321327 0 0 3 0x14200 reaper reaper
35778 439202 0 0 3 0x14200 pgdaemon pagedaemon
65987 150579 0 0 3 0x14200 bored viomb
5361 523924 0 0 3 0x40014200 acpi0 acpi0
16150 204822 0 0 3 0x14200 bored softnet3
47293 114880 0 0 3 0x14200 bored softnet2
2491 57979 0 0 3 0x14200 bored softnet1
80429 88519 0 0 3 0x14200 bored softnet0
10022 108531 0 0 3 0x14200 bored systqmp
61404 120359 0 0 3 0x14200 bored systq
15148 185431 0 0 2 0x40014200 softclock
9243 331086 0 0 3 0x40014200 idle0
1 345649 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10203 6420K 7388K 166960K 46555 0
pcb 15 16K 18K 166960K 1032 0
rtable 185 13K 15K 166960K 3723 0
pf 30 9K 9K 166960K 458 0
ifaddr 35 11K 13K 166960K 468 0
ifgroup 51 2K 2K 166960K 757 0
sysctl 3 0K 0K 166960K 7 0
counters 30 17K 17K 166960K 226 0
ioctlops 0 0K 2K 166960K 711 0
iov 0 0K 24K 166960K 1604 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1626 102K 102K 166960K 10743 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 179 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 1900 0
dirhash 12 2K 2K 166960K 99 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 15 53K 81K 166960K 14158 0
sigio 0 0K 0K 166960K 565 0
proc 58 59K 75K 166960K 2844 0
subproc 130 8K 8K 166960K 1027 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 574 0
in_multi 69 5K 7K 166960K 986 0
ether_multi 1 0K 0K 166960K 4 0
mrt 0 0K 0K 166960K 7 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 247 1102K 1102K 166960K 247 0
exec 0 0K 1K 166960K 2765 0
pfkey data 0 0K 0K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 427 303K 320K 166960K 129651 0
UVM aobj 131 8K 8K 166960K 131 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 366 0
NDP 11 0K 1K 166960K 368 0
temp 83 6764K 7118K 166960K 121278 0
kqueue 12 18K 26K 166960K 942 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 1011 0 1008 8 5 3 5 0 8 2
rtentry 112 1018 0 936 4 0 4 4 0 8 0
unpcb 144 8354 0 8338 30 22 8 11 0 8 7
syncache 336 118 0 118 3 2 1 1 0 8 1
tcpqe 32 154 0 154 3 2 1 1 0 8 1
tcpcb 808 4535 0 4525 30 21 9 12 0 8 7
arp 88 186 0 172 1 0 1 1 0 8 0
ipq 40 17 0 16 2 1 1 1 0 8 0
ipqe 40 53 0 52 2 1 1 1 0 8 0
inpcb 360 10381 0 10368 57 47 10 17 0 8 8
nd6 104 254 0 240 1 0 1 1 0 8 0
pkpcb 40 106 0 106 3 2 1 1 0 8 1
kcovpl 48 79 0 69 1 0 1 1 0 8 0
ppxss 1072 57 0 57 3 2 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 4015 0 3669 51 22 29 30 0 8 3
art_table 32 4016 0 3669 4 0 4 4 0 8 0
art_node 16 1013 0 937 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0
semapl 112 1898 0 1888 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 75 0 58 3 0 3 3 0 8 0
dino2pl 256 19187 0 17689 95 0 95 95 0 8 0
ffsino 240 19187 0 17689 89 0 89 89 0 8 0
nchpl 144 37422 0 35786 63 0 63 63 0 8 1
uvmvnodes 80 6077 0 0 125 0 125 125 0 8 0
vnodes 216 6077 0 0 338 0 338 338 0 8 0
namei 1024 126582 0 126579 8 6 2 3 0 8 1
vcpupl 2048 58 0 2 8 0 8 8 0 8 0
vmpool 664 93 0 37 5 0 5 5 0 8 0
kstatmem 264 414 0 392 2 0 2 2 0 8 0
scxspl 216 123390 0 123390 14 10 4 8 1 8 4
plimitpl 152 1477 0 1458 1 0 1 1 0 8 0
sigapl 424 14495 0 14430 8 0 8 8 0 8 0
futexpl 64 119481 0 119474 1 0 1 1 0 8 0
knotepl 120 175917 0 175835 36 25 11 18 0 8 8
kqueuepl 184 2189 0 2181 12 6 6 6 0 8 5
pipepl 288 2329 0 2299 19 12 7 7 0 8 4
fdescpl 432 14297 0 14271 4 0 4 4 0 8 0
filepl 120 76657 0 76380 39 22 17 18 0 8 6
lockfpl 104 7130 0 7127 2 0 2 2 0 8 1
lockfspl 48 3109 0 3106 1 0 1 1 0 8 0
sessionpl 144 93 0 75 1 0 1 1 0 8 0
pgrppl 48 183 0 165 1 0 1 1 0 8 0
ucredpl 104 10506 0 10492 1 0 1 1 0 8 0
zombiepl 144 14431 0 14430 2 1 1 1 0 8 0
processpl 1072 14495 0 14430 5 0 5 5 0 8 0
procpl 680 35171 0 35084 14 4 10 10 0 8 1
sosppl 168 121 0 121 3 2 1 1 0 8 1
sockpl 488 19874 0 19842 327 314 13 37 0 8 7
mcl64k 65536 559 0 559 4 3 1 1 0 8 1
mcl16k 16384 222 0 222 4 3 1 1 0 8 1
mcl12k 12288 549 0 549 4 3 1 1 0 8 1
mcl9k 9216 405 0 405 4 3 1 1 0 8 1
mcl8k 8192 1011 0 1010 7 6 1 1 0 8 0
mcl4k 4096 1403 0 1403 7 6 1 1 0 8 1
mcl2k2 2112 99 0 99 4 3 1 1 0 8 1
mcl2k 2048 100412 0 100374 39 26 13 30 0 8 7
mtagpl 96 4079 0 3767 20 0 20 20 0 8 6
mbufpl 256 282055 0 281630 530 474 56 275 0 8 8
bufpl 280 27984 0 21592 457 0 457 457 0 8 0
anonpl 24 1450067 0 1435439 168 49 119 119 0 188 12
amapchunkpl 152 409399 0 408551 66 16 50 50 0 158 10
amappl16 200 30341 0 29851 113 79 34 40 0 8 7
amappl15 192 111 0 110 1 0 1 1 0 8 0
amappl14 184 366 0 354 2 1 1 2 0 8 0
amappl13 176 43 0 43 2 1 1 1 0 8 1
amappl12 168 15987 0 15959 2 0 2 2 0 8 0
amappl11 160 51 0 41 1 0 1 1 0 8 0
amappl10 152 157 0 143 1 0 1 1 0 8 0
amappl9 144 214 0 214 1 0 1 1 0 8 1
amappl8 136 578 0 496 3 0 3 3 0 8 0
amappl7 128 398 0 373 2 0 2 2 0 8 0
amappl6 120 1336 0 1323 1 0 1 1 0 8 0
amappl5 112 357 0 348 1 0 1 1 0 8 0
amappl4 104 890 0 864 2 1 1 2 0 8 0
amappl3 96 80761 0 80665 4 0 4 4 0 8 0
amappl2 88 15504 0 15430 3 1 2 3 0 8 0
amappl1 80 63491 0 62979 22 10 12 22 0 8 0
amappl 88 128339 0 128103 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0
uaddrrnd 24 14390 0 14308 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 14390 0 14308 1 0 1 1 0 8 0
vmmpekpl 168 104340 0 104264 4 0 4 4 0 8 0
vmmpepl 168 869520 0 867222 198 57 141 141 0 357 13
vmsppl 352 14389 0 14308 8 0 8 8 0 8 0
rwobjpl 24 204196 0 196404 49 0 49 49 0 8 0
pdppl 4096 28786 0 28672 955 835 120 125 0 8 6
pvpl 32 4047383 0 4026707 502 261 241 363 0 265 53
pmappl 216 14389 0 14308 5 0 5 5 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1870 0 1422 18 0 18 18 0 8 2
ddb> machine ddbcpu 0
No such command
ddb> trace
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: -7
ddb> machine ddbcpu 1
No such command
ddb> trace
strcmp() at strcmp+0x50
bpfioctl(21700,8020426c,ffff80002d9230c0,1,ffff80002a63c000) at bpfioctl+0xab2 sys/net/bpf.c:956
VOP_IOCTL(fffffd807dd918a0,8020426c,ffff80002d9230c0,1,fffffd807f7d7a28,ffff80002a63c000) at VOP_IOCTL+0x91 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806cf2bd28,8020426c,ffff80002d9230c0,ffff80002a63c000) at vn_ioctl+0xbb sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a63c000,ffff80002d9232a0,ffff80002d9231f0) at sys_ioctl+0x49e
syscall(ffff80002d9232a0) at syscall+0x751 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x261b8063740, count: -7
---
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