panic: vpoanp_igc:en e r i c _ b ad op
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syzbot
Jun 27, 2022, 4:39:33 AM6/27/22
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: a5953208fc7d Don't reset `idle_time' timeout on closed pip..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=100183c4080000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=9de53590c4a584a72d45
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9de535...@syzkaller.appspotmail.com
panic: vpoanp_igc:en e r i c _ b ad op
kStopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
337891 90798 0 0 0 1 syz-executor.1
*439653 24013 0 0x2 0 0 syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825917a5) at panic+0x177 sys/kern/subr_prf.c:202
vop_generic_badop(ffff800021222e38) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80667207e8,fffffd80685e14a8) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628
bwrite(fffffd80685e14a8) at bwrite+0x1f0 sys/kern/vfs_bio.c:763
VOP_BWRITE(fffffd80685e14a8) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212230d0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236
VOP_MKDIR(fffffd806aa71be0,ffff800021223230,ffff800021223260,ffff800021223160) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
domkdirat(ffff8000fffee2a8,ffffff9c,7f7ffffe86c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3116
syscall(ffff8000212233e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212233e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8730, count: 4
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: vop_generic_badop
cpu1: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_fork.c", line 678
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825917a5) at panic+0x177 sys/kern/subr_prf.c:202
vop_generic_badop(ffff800021222e38) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80667207e8,fffffd80685e14a8) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628
bwrite(fffffd80685e14a8) at bwrite+0x1f0 sys/kern/vfs_bio.c:763
VOP_BWRITE(fffffd80685e14a8) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212230d0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236
VOP_MKDIR(fffffd806aa71be0,ffff800021223230,ffff800021223260,ffff800021223160) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
domkdirat(ffff8000fffee2a8,ffffff9c,7f7ffffe86c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3116
syscall(ffff8000212233e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212233e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8730, count: -11
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff800021222d60
rbx 0xffffffff8299cc5f cpu_info_full_primary+0x2c5f
rdx 0
rcx 0
rax 0xffff8000fffee2a8
r8 0
r9 0x8080808080808080
r10 0x397b24c90b48c681
r11 0xf0a4b26afd4ca284
r12 0xffffffff8299ca60 cpu_info_full_primary+0x2a60
r13 0
r14 0
r15 0x1
rip 0xffffffff810173f8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800021222d50
ss 0
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.0) pid=439653 stat=onproc
flags process=2<EXEC> proc=0
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000fffee548,0xffff8000fffefcf8
process=0xffff8000ffff8858 user=0xffff80002121e000, vmspace=0xfffffd806ee42cf8
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
56559 35797 43135 0 2 0 syz-executor.2
90798 337891 30155 0 7 0 syz-executor.1
41286 444296 35725 0 2 0 syz-executor.5
41286 144950 35725 0 2 0x4000000 syz-executor.5
41286 137957 35725 0 2 0x4000000 syz-executor.5
41286 507486 35725 0 2 0x4000000 syz-executor.5
67074 103057 38337 0 2 0 syz-executor.7
67074 471937 38337 0 2 0x4000000 syz-executor.7
545 414435 13950 0 2 0 syz-executor.6
545 94077 13950 0 2 0x4000000 syz-executor.6
6955 523171 18036 0 2 0 syz-executor.4
6955 340775 18036 0 3 0x4000080 fsleep syz-executor.4
63890 87125 0 0 3 0x14200 acct acct
38337 257113 19034 0 2 0x482 syz-executor.7
13950 135255 19034 0 2 0x482 syz-executor.6
92889 419453 19034 0 2 0x2 syz-executor.3
35725 433525 19034 0 3 0x82 nanoslp syz-executor.5
18036 227767 19034 0 3 0x82 nanoslp syz-executor.4
54230 441809 0 0 3 0x14200 bored sosplice
60926 459719 0 0 3 0x14280 nfsidl nfsio
89435 161293 0 0 3 0x14280 nfsidl nfsio
57682 192357 0 0 3 0x14280 nfsidl nfsio
29582 272997 0 0 3 0x14280 nfsidl nfsio
50664 84865 0 0 3 0x14280 nfsidl nfsio
80076 443227 0 0 3 0x14280 nfsidl nfsio
84003 99750 0 0 3 0x14280 nfsidl nfsio
38631 519234 0 0 3 0x14280 nfsidl nfsio
32541 6839 0 0 3 0x14280 nfsidl nfsio
51477 167824 0 0 3 0x14280 nfsidl nfsio
61540 475753 0 0 3 0x14280 nfsidl nfsio
19744 157571 0 0 3 0x14280 nfsidl nfsio
69029 173798 0 0 3 0x14280 nfsidl nfsio
71723 474261 0 0 3 0x14280 nfsidl nfsio
71390 207933 0 0 3 0x14280 nfsidl nfsio
57654 520177 0 0 3 0x14280 nfsidl nfsio
48694 63082 0 0 3 0x14280 nfsidl nfsio
76560 484073 0 0 3 0x14280 nfsidl nfsio
90989 411512 0 0 3 0x14280 nfsidl nfsio
95973 64093 0 0 3 0x14280 nfsidl nfsio
43135 130764 19034 0 3 0x82 nanoslp syz-executor.2
30155 357454 19034 0 3 0x82 nanoslp syz-executor.1
*24013 439653 19034 0 7 0x2 syz-executor.0
19034 275162 22359 0 3 0x82 thrsleep syz-fuzzer
19034 4691 22359 0 3 0x4000082 nanoslp syz-fuzzer
19034 496623 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 404294 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 224231 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 395220 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 7916 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 225384 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 339073 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 313328 22359 0 2 0x4000082 syz-fuzzer
22359 459465 96483 0 3 0x10008a sigsusp ksh
96483 92935 63754 0 3 0x9a kqread sshd
19415 165178 1 0 3 0x100083 ttyin getty
63754 504973 1 0 3 0x88 kqread sshd
90184 291787 20298 74 3 0x1100092 bpf pflogd
20298 211814 1 0 3 0x80 netio pflogd
39324 347012 92520 73 3 0x1100090 kqread syslogd
92520 260469 1 0 3 0x100082 netio syslogd
3051 214565 1 0 3 0x100080 kqread resolvd
56953 234582 68011 77 3 0x100092 kqread dhcpleased
74101 387428 68011 77 3 0x100092 kqread dhcpleased
68011 177725 1 0 3 0x80 kqread dhcpleased
52635 62068 0 0 3 0x14200 bored smr
84667 397110 0 0 2 0x14200 zerothread
73589 430396 0 0 3 0x14200 aiodoned aiodoned
36172 506052 0 0 3 0x14200 syncer update
28881 473198 0 0 3 0x14200 cleaner cleaner
74065 169473 0 0 3 0x14200 reaper reaper
55193 321653 0 0 3 0x14200 pgdaemon pagedaemon
48060 494961 0 0 3 0x14200 bored viomb
41622 189563 0 0 3 0x40014200 acpi0 acpi0
98349 428168 0 0 3 0x40014200 idle1
60052 18317 0 0 3 0x14200 bored softnet
33011 242884 0 0 3 0x14200 bored softnet
81917 144157 0 0 3 0x14200 bored softnet
28953 10663 0 0 3 0x14200 bored softnet
25137 336034 0 0 3 0x14200 bored systqmp
15011 323125 0 0 3 0x14200 bored systq
14650 393821 0 0 2 0x40014200 softclock
78985 252184 0 0 3 0x40014200 idle0
1 131087 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10194 6547K 7008K 78643K 17849 0
pcb 13 11K 12K 78643K 843 0
rtable 246 21K 22K 78643K 1150 0
ifaddr 92 19K 19K 78643K 336 0
sysctl 2 0K 0K 78643K 2 0
counters 56 35K 35K 78643K 114 0
ioctlops 0 0K 4K 78643K 3607 0
iov 0 0K 24K 78643K 268 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 5 0
vnodes 1401 88K 88K 78643K 3528 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 41 0
VM map 2 1K 1K 78643K 2 0
sem 21 2K 2K 78643K 148 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 16 57K 85K 78643K 3880 0
sigio 0 0K 0K 78643K 262 0
proc 75 91K 128K 78643K 1107 0
subproc 104 6K 6K 78643K 273 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 193 0
in_multi 96 6K 6K 78643K 317 0
ether_multi 1 0K 0K 78643K 15 0
mrt 1 0K 0K 78643K 16 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 67 307K 307K 78643K 67 0
exec 0 0K 2K 78643K 1667 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 335 476K 477K 78643K 24695 0
UVM aobj 131 4K 4K 78643K 134 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 126 0
NDP 13 0K 2K 78643K 87 0
temp 143 4750K 5770K 78643K 47497 0
kqueue 13 20K 25K 78643K 363 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 391 0 388 6 5 1 3 0 8 0
rtentry 112 283 0 185 4 0 4 4 0 8 0
unpcb 136 2533 0 2518 22 21 1 10 0 8 0
syncache 296 20 0 20 7 7 0 1 0 8 0
tcpqe 32 481 0 481 3 3 0 2 0 8 0
tcpcb 736 3577 0 3567 85 76 9 18 0 8 7
arp 120 47 0 29 1 0 1 1 0 8 0
inpcb 312 5527 0 5517 40 34 6 11 0 8 5
nd6 48 69 0 44 1 0 1 1 0 8 0
pkpcb 40 17 0 17 3 3 0 1 0 8 0
kcovpl 48 21 0 13 1 0 1 1 0 8 0
ppxss 1256 3 0 3 1 0 1 1 0 8 1
pfstscr 40 2 0 1 1 0 1 1 0 8 0
pffrag 232 9 0 8 3 2 1 1 0 482 0
pffrnode 88 9 0 8 3 2 1 1 0 8 0
pffrent 40 56 0 55 4 3 1 1 0 8 0
pfosfp 40 1428 0 1428 5 5 0 5 0 8 0
pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0
pfrktable 1344 33 0 20 2 0 2 2 0 8 0
pftag 88 4 0 0 1 0 1 1 0 8 0
pfqueue 264 7 0 7 2 2 0 1 0 8 0
pfstitem 24 25 0 21 1 0 1 1 0 8 0
pfstkey 112 27 0 23 1 0 1 1 0 8 0
pfstate 336 25 0 22 2 1 1 2 0 8 0
pfrule 1360 262 0 221 5 1 4 4 0 8 0
rttmr 64 3 0 3 2 2 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1244 0 839 38 12 26 30 0 8 0
art_table 32 1245 0 839 4 0 4 4 0 8 0
art_node 16 279 0 194 1 0 1 1 0 8 0
sysvmsgpl 40 26 0 15 1 0 1 1 0 8 0
semupl 112 7 0 7 1 1 0 1 0 8 0
semapl 112 138 0 119 1 0 1 1 0 8 0
shmpl 112 131 0 3 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 6415 0 4959 92 0 92 92 0 8 0
ffsino 272 6415 0 4959 98 0 98 98 0 8 0
nchpl 144 11785 0 10139 63 0 63 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 43855 0 43854 4 3 1 2 0 8 0
percpumem 16 69 0 29 1 0 1 1 0 8 0
vcpupl 2048 154 0 0 20 0 20 20 0 8 0
vmpool 560 157 0 3 11 0 11 11 0 8 0
pfiaddrpl 120 19 0 0 1 0 1 1 0 8 0
kstatmem 264 84 0 58 2 0 2 2 0 8 0
scsiplug 72 10 0 10 2 2 0 1 0 8 0
scxspl 216 32582 0 32582 18 15 3 8 0 8 3
plimitpl 152 539 0 524 1 0 1 1 0 8 0
sigapl 424 4187 0 4119 10 2 8 9 0 8 0
futexpl 64 32542 0 32541 3 2 1 1 0 8 0
knotepl 120 395 0 0 8 0 8 8 0 8 0
kqueuepl 216 798 0 789 13 8 5 5 0 8 4
pipepl 336 1011 0 983 37 34 3 14 0 8 0
fdescpl 496 4141 0 4112 5 1 4 5 0 8 0
filepl 152 30139 0 29897 53 40 13 22 0 8 3
lockfpl 104 902 0 900 3 1 2 2 0 8 1
lockfspl 48 303 0 301 1 0 1 1 0 8 0
sessionpl 144 37 0 20 1 0 1 1 0 8 0
pgrppl 48 37 0 20 1 0 1 1 0 8 0
ucredpl 96 3523 0 3511 1 0 1 1 0 8 0
zombiepl 144 4119 0 4119 1 0 1 1 0 8 1
processpl 1064 4187 0 4119 5 0 5 5 0 8 0
procpl 672 11468 0 11385 15 6 9 9 0 8 1
srpgc 96 16 0 16 3 3 0 1 0 8 0
sosppl 168 34 0 33 5 4 1 1 0 8 0
sockpl 480 8469 0 8441 120 108 12 36 0 8 8
mcl64k 65536 25 0 0 3 0 3 3 0 8 0
mcl16k 16384 17 0 0 3 0 3 3 0 8 0
mcl12k 12288 17 0 0 2 0 2 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 18 0 0 3 0 3 3 0 8 0
mcl2k2 2112 6 0 0 1 0 1 1 0 8 0
mcl2k 2048 346 0 0 42 0 42 42 0 8 0
mtagpl 96 447 0 0 10 0 10 10 0 8 0
mbufpl 256 8936 0 0 557 0 557 557 0 8 0
bufpl 288 9578 0 3245 453 0 453 453 0 8 0
anonpl 24 792382 0 774780 161 47 114 132 0 186 1
amapchunkpl 152 68668 0 67941 43 11 32 33 0 158 0
amappl16 200 10206 0 9636 65 34 31 43 0 8 0
amappl15 192 1354 0 1352 1 0 1 1 0 8 0
amappl14 184 1061 0 1055 1 0 1 1 0 8 0
amappl13 176 488 0 486 1 0 1 1 0 8 0
amappl12 168 155 0 148 1 0 1 1 0 8 0
amappl11 160 358 0 334 2 0 2 2 0 8 0
amappl10 152 1055 0 1048 1 0 1 1 0 8 0
amappl9 144 895 0 891 1 0 1 1 0 8 0
amappl8 136 843 0 773 3 0 3 3 0 8 0
amappl7 128 192 0 180 1 0 1 1 0 8 0
amappl6 120 690 0 671 2 1 1 2 0 8 0
amappl5 112 3773 0 3755 1 0 1 1 0 8 0
amappl4 104 2306 0 2276 2 1 1 2 0 8 0
amappl3 96 11982 0 11930 2 0 2 2 0 8 0
amappl2 88 4884 0 4822 3 0 3 3 0 8 0
amappl1 80 100860 0 100225 22 7 15 20 0 8 0
amappl 88 23892 0 23707 6 1 5 5 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 72 133 0 3 3 0 3 3 0 8 0
uaddrrnd 24 4298 0 4115 2 0 2 2 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 4298 0 4115 2 0 2 2 0 8 0
vmmpekpl 168 36524 0 36447 4 0 4 4 0 8 0
vmmpepl 168 407051 0 404142 186 47 139 158 0 357 3
vmsppl 368 4297 0 4115 18 1 17 17 0 8 0
rwobjpl 56 106477 0 98810 112 2 110 111 0 8 0
pdppl 4096 8603 0 8384 469 246 223 223 0 8 4
pvpl 32 1620582 0 1598958 300 114 186 247 0 265 2
pmappl 248 4297 0 4115 13 1 12 12 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 1980 0 410 45 0 45 45 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825917a5) at panic+0x177 sys/kern/subr_prf.c:202
vop_generic_badop(ffff800021222e38) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80667207e8,fffffd80685e14a8) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628
bwrite(fffffd80685e14a8) at bwrite+0x1f0 sys/kern/vfs_bio.c:763
VOP_BWRITE(fffffd80685e14a8) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212230d0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236
VOP_MKDIR(fffffd806aa71be0,ffff800021223230,ffff800021223260,ffff800021223160) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
domkdirat(ffff8000fffee2a8,ffffff9c,7f7ffffe86c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3116
syscall(ffff8000212233e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212233e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8730, count: -11
ddb{0}> machine ddbcpu 1
---
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.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: a5953208fc7d Don't reset `idle_time' timeout on closed pip..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=100183c4080000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=9de53590c4a584a72d45
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9de535...@syzkaller.appspotmail.com
panic: vpoanp_igc:en e r i c _ b ad op
kStopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
337891 90798 0 0 0 1 syz-executor.1
*439653 24013 0 0x2 0 0 syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825917a5) at panic+0x177 sys/kern/subr_prf.c:202
vop_generic_badop(ffff800021222e38) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80667207e8,fffffd80685e14a8) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628
bwrite(fffffd80685e14a8) at bwrite+0x1f0 sys/kern/vfs_bio.c:763
VOP_BWRITE(fffffd80685e14a8) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212230d0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236
VOP_MKDIR(fffffd806aa71be0,ffff800021223230,ffff800021223260,ffff800021223160) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
domkdirat(ffff8000fffee2a8,ffffff9c,7f7ffffe86c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3116
syscall(ffff8000212233e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212233e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8730, count: 4
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: vop_generic_badop
cpu1: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_fork.c", line 678
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825917a5) at panic+0x177 sys/kern/subr_prf.c:202
vop_generic_badop(ffff800021222e38) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80667207e8,fffffd80685e14a8) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628
bwrite(fffffd80685e14a8) at bwrite+0x1f0 sys/kern/vfs_bio.c:763
VOP_BWRITE(fffffd80685e14a8) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212230d0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236
VOP_MKDIR(fffffd806aa71be0,ffff800021223230,ffff800021223260,ffff800021223160) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
domkdirat(ffff8000fffee2a8,ffffff9c,7f7ffffe86c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3116
syscall(ffff8000212233e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212233e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8730, count: -11
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff800021222d60
rbx 0xffffffff8299cc5f cpu_info_full_primary+0x2c5f
rdx 0
rcx 0
rax 0xffff8000fffee2a8
r8 0
r9 0x8080808080808080
r10 0x397b24c90b48c681
r11 0xf0a4b26afd4ca284
r12 0xffffffff8299ca60 cpu_info_full_primary+0x2a60
r13 0
r14 0
r15 0x1
rip 0xffffffff810173f8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800021222d50
ss 0
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.0) pid=439653 stat=onproc
flags process=2<EXEC> proc=0
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000fffee548,0xffff8000fffefcf8
process=0xffff8000ffff8858 user=0xffff80002121e000, vmspace=0xfffffd806ee42cf8
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
56559 35797 43135 0 2 0 syz-executor.2
90798 337891 30155 0 7 0 syz-executor.1
41286 444296 35725 0 2 0 syz-executor.5
41286 144950 35725 0 2 0x4000000 syz-executor.5
41286 137957 35725 0 2 0x4000000 syz-executor.5
41286 507486 35725 0 2 0x4000000 syz-executor.5
67074 103057 38337 0 2 0 syz-executor.7
67074 471937 38337 0 2 0x4000000 syz-executor.7
545 414435 13950 0 2 0 syz-executor.6
545 94077 13950 0 2 0x4000000 syz-executor.6
6955 523171 18036 0 2 0 syz-executor.4
6955 340775 18036 0 3 0x4000080 fsleep syz-executor.4
63890 87125 0 0 3 0x14200 acct acct
38337 257113 19034 0 2 0x482 syz-executor.7
13950 135255 19034 0 2 0x482 syz-executor.6
92889 419453 19034 0 2 0x2 syz-executor.3
35725 433525 19034 0 3 0x82 nanoslp syz-executor.5
18036 227767 19034 0 3 0x82 nanoslp syz-executor.4
54230 441809 0 0 3 0x14200 bored sosplice
60926 459719 0 0 3 0x14280 nfsidl nfsio
89435 161293 0 0 3 0x14280 nfsidl nfsio
57682 192357 0 0 3 0x14280 nfsidl nfsio
29582 272997 0 0 3 0x14280 nfsidl nfsio
50664 84865 0 0 3 0x14280 nfsidl nfsio
80076 443227 0 0 3 0x14280 nfsidl nfsio
84003 99750 0 0 3 0x14280 nfsidl nfsio
38631 519234 0 0 3 0x14280 nfsidl nfsio
32541 6839 0 0 3 0x14280 nfsidl nfsio
51477 167824 0 0 3 0x14280 nfsidl nfsio
61540 475753 0 0 3 0x14280 nfsidl nfsio
19744 157571 0 0 3 0x14280 nfsidl nfsio
69029 173798 0 0 3 0x14280 nfsidl nfsio
71723 474261 0 0 3 0x14280 nfsidl nfsio
71390 207933 0 0 3 0x14280 nfsidl nfsio
57654 520177 0 0 3 0x14280 nfsidl nfsio
48694 63082 0 0 3 0x14280 nfsidl nfsio
76560 484073 0 0 3 0x14280 nfsidl nfsio
90989 411512 0 0 3 0x14280 nfsidl nfsio
95973 64093 0 0 3 0x14280 nfsidl nfsio
43135 130764 19034 0 3 0x82 nanoslp syz-executor.2
30155 357454 19034 0 3 0x82 nanoslp syz-executor.1
*24013 439653 19034 0 7 0x2 syz-executor.0
19034 275162 22359 0 3 0x82 thrsleep syz-fuzzer
19034 4691 22359 0 3 0x4000082 nanoslp syz-fuzzer
19034 496623 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 404294 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 224231 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 395220 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 7916 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 225384 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 339073 22359 0 3 0x4000082 thrsleep syz-fuzzer
19034 313328 22359 0 2 0x4000082 syz-fuzzer
22359 459465 96483 0 3 0x10008a sigsusp ksh
96483 92935 63754 0 3 0x9a kqread sshd
19415 165178 1 0 3 0x100083 ttyin getty
63754 504973 1 0 3 0x88 kqread sshd
90184 291787 20298 74 3 0x1100092 bpf pflogd
20298 211814 1 0 3 0x80 netio pflogd
39324 347012 92520 73 3 0x1100090 kqread syslogd
92520 260469 1 0 3 0x100082 netio syslogd
3051 214565 1 0 3 0x100080 kqread resolvd
56953 234582 68011 77 3 0x100092 kqread dhcpleased
74101 387428 68011 77 3 0x100092 kqread dhcpleased
68011 177725 1 0 3 0x80 kqread dhcpleased
52635 62068 0 0 3 0x14200 bored smr
84667 397110 0 0 2 0x14200 zerothread
73589 430396 0 0 3 0x14200 aiodoned aiodoned
36172 506052 0 0 3 0x14200 syncer update
28881 473198 0 0 3 0x14200 cleaner cleaner
74065 169473 0 0 3 0x14200 reaper reaper
55193 321653 0 0 3 0x14200 pgdaemon pagedaemon
48060 494961 0 0 3 0x14200 bored viomb
41622 189563 0 0 3 0x40014200 acpi0 acpi0
98349 428168 0 0 3 0x40014200 idle1
60052 18317 0 0 3 0x14200 bored softnet
33011 242884 0 0 3 0x14200 bored softnet
81917 144157 0 0 3 0x14200 bored softnet
28953 10663 0 0 3 0x14200 bored softnet
25137 336034 0 0 3 0x14200 bored systqmp
15011 323125 0 0 3 0x14200 bored systq
14650 393821 0 0 2 0x40014200 softclock
78985 252184 0 0 3 0x40014200 idle0
1 131087 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10194 6547K 7008K 78643K 17849 0
pcb 13 11K 12K 78643K 843 0
rtable 246 21K 22K 78643K 1150 0
ifaddr 92 19K 19K 78643K 336 0
sysctl 2 0K 0K 78643K 2 0
counters 56 35K 35K 78643K 114 0
ioctlops 0 0K 4K 78643K 3607 0
iov 0 0K 24K 78643K 268 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 5 0
vnodes 1401 88K 88K 78643K 3528 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 41 0
VM map 2 1K 1K 78643K 2 0
sem 21 2K 2K 78643K 148 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 16 57K 85K 78643K 3880 0
sigio 0 0K 0K 78643K 262 0
proc 75 91K 128K 78643K 1107 0
subproc 104 6K 6K 78643K 273 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 193 0
in_multi 96 6K 6K 78643K 317 0
ether_multi 1 0K 0K 78643K 15 0
mrt 1 0K 0K 78643K 16 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 67 307K 307K 78643K 67 0
exec 0 0K 2K 78643K 1667 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 335 476K 477K 78643K 24695 0
UVM aobj 131 4K 4K 78643K 134 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 126 0
NDP 13 0K 2K 78643K 87 0
temp 143 4750K 5770K 78643K 47497 0
kqueue 13 20K 25K 78643K 363 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 391 0 388 6 5 1 3 0 8 0
rtentry 112 283 0 185 4 0 4 4 0 8 0
unpcb 136 2533 0 2518 22 21 1 10 0 8 0
syncache 296 20 0 20 7 7 0 1 0 8 0
tcpqe 32 481 0 481 3 3 0 2 0 8 0
tcpcb 736 3577 0 3567 85 76 9 18 0 8 7
arp 120 47 0 29 1 0 1 1 0 8 0
inpcb 312 5527 0 5517 40 34 6 11 0 8 5
nd6 48 69 0 44 1 0 1 1 0 8 0
pkpcb 40 17 0 17 3 3 0 1 0 8 0
kcovpl 48 21 0 13 1 0 1 1 0 8 0
ppxss 1256 3 0 3 1 0 1 1 0 8 1
pfstscr 40 2 0 1 1 0 1 1 0 8 0
pffrag 232 9 0 8 3 2 1 1 0 482 0
pffrnode 88 9 0 8 3 2 1 1 0 8 0
pffrent 40 56 0 55 4 3 1 1 0 8 0
pfosfp 40 1428 0 1428 5 5 0 5 0 8 0
pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0
pfrktable 1344 33 0 20 2 0 2 2 0 8 0
pftag 88 4 0 0 1 0 1 1 0 8 0
pfqueue 264 7 0 7 2 2 0 1 0 8 0
pfstitem 24 25 0 21 1 0 1 1 0 8 0
pfstkey 112 27 0 23 1 0 1 1 0 8 0
pfstate 336 25 0 22 2 1 1 2 0 8 0
pfrule 1360 262 0 221 5 1 4 4 0 8 0
rttmr 64 3 0 3 2 2 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1244 0 839 38 12 26 30 0 8 0
art_table 32 1245 0 839 4 0 4 4 0 8 0
art_node 16 279 0 194 1 0 1 1 0 8 0
sysvmsgpl 40 26 0 15 1 0 1 1 0 8 0
semupl 112 7 0 7 1 1 0 1 0 8 0
semapl 112 138 0 119 1 0 1 1 0 8 0
shmpl 112 131 0 3 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 6415 0 4959 92 0 92 92 0 8 0
ffsino 272 6415 0 4959 98 0 98 98 0 8 0
nchpl 144 11785 0 10139 63 0 63 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 43855 0 43854 4 3 1 2 0 8 0
percpumem 16 69 0 29 1 0 1 1 0 8 0
vcpupl 2048 154 0 0 20 0 20 20 0 8 0
vmpool 560 157 0 3 11 0 11 11 0 8 0
pfiaddrpl 120 19 0 0 1 0 1 1 0 8 0
kstatmem 264 84 0 58 2 0 2 2 0 8 0
scsiplug 72 10 0 10 2 2 0 1 0 8 0
scxspl 216 32582 0 32582 18 15 3 8 0 8 3
plimitpl 152 539 0 524 1 0 1 1 0 8 0
sigapl 424 4187 0 4119 10 2 8 9 0 8 0
futexpl 64 32542 0 32541 3 2 1 1 0 8 0
knotepl 120 395 0 0 8 0 8 8 0 8 0
kqueuepl 216 798 0 789 13 8 5 5 0 8 4
pipepl 336 1011 0 983 37 34 3 14 0 8 0
fdescpl 496 4141 0 4112 5 1 4 5 0 8 0
filepl 152 30139 0 29897 53 40 13 22 0 8 3
lockfpl 104 902 0 900 3 1 2 2 0 8 1
lockfspl 48 303 0 301 1 0 1 1 0 8 0
sessionpl 144 37 0 20 1 0 1 1 0 8 0
pgrppl 48 37 0 20 1 0 1 1 0 8 0
ucredpl 96 3523 0 3511 1 0 1 1 0 8 0
zombiepl 144 4119 0 4119 1 0 1 1 0 8 1
processpl 1064 4187 0 4119 5 0 5 5 0 8 0
procpl 672 11468 0 11385 15 6 9 9 0 8 1
srpgc 96 16 0 16 3 3 0 1 0 8 0
sosppl 168 34 0 33 5 4 1 1 0 8 0
sockpl 480 8469 0 8441 120 108 12 36 0 8 8
mcl64k 65536 25 0 0 3 0 3 3 0 8 0
mcl16k 16384 17 0 0 3 0 3 3 0 8 0
mcl12k 12288 17 0 0 2 0 2 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 18 0 0 3 0 3 3 0 8 0
mcl2k2 2112 6 0 0 1 0 1 1 0 8 0
mcl2k 2048 346 0 0 42 0 42 42 0 8 0
mtagpl 96 447 0 0 10 0 10 10 0 8 0
mbufpl 256 8936 0 0 557 0 557 557 0 8 0
bufpl 288 9578 0 3245 453 0 453 453 0 8 0
anonpl 24 792382 0 774780 161 47 114 132 0 186 1
amapchunkpl 152 68668 0 67941 43 11 32 33 0 158 0
amappl16 200 10206 0 9636 65 34 31 43 0 8 0
amappl15 192 1354 0 1352 1 0 1 1 0 8 0
amappl14 184 1061 0 1055 1 0 1 1 0 8 0
amappl13 176 488 0 486 1 0 1 1 0 8 0
amappl12 168 155 0 148 1 0 1 1 0 8 0
amappl11 160 358 0 334 2 0 2 2 0 8 0
amappl10 152 1055 0 1048 1 0 1 1 0 8 0
amappl9 144 895 0 891 1 0 1 1 0 8 0
amappl8 136 843 0 773 3 0 3 3 0 8 0
amappl7 128 192 0 180 1 0 1 1 0 8 0
amappl6 120 690 0 671 2 1 1 2 0 8 0
amappl5 112 3773 0 3755 1 0 1 1 0 8 0
amappl4 104 2306 0 2276 2 1 1 2 0 8 0
amappl3 96 11982 0 11930 2 0 2 2 0 8 0
amappl2 88 4884 0 4822 3 0 3 3 0 8 0
amappl1 80 100860 0 100225 22 7 15 20 0 8 0
amappl 88 23892 0 23707 6 1 5 5 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 72 133 0 3 3 0 3 3 0 8 0
uaddrrnd 24 4298 0 4115 2 0 2 2 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 4298 0 4115 2 0 2 2 0 8 0
vmmpekpl 168 36524 0 36447 4 0 4 4 0 8 0
vmmpepl 168 407051 0 404142 186 47 139 158 0 357 3
vmsppl 368 4297 0 4115 18 1 17 17 0 8 0
rwobjpl 56 106477 0 98810 112 2 110 111 0 8 0
pdppl 4096 8603 0 8384 469 246 223 223 0 8 4
pvpl 32 1620582 0 1598958 300 114 186 247 0 265 2
pmappl 248 4297 0 4115 13 1 12 12 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 1980 0 410 45 0 45 45 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825917a5) at panic+0x177 sys/kern/subr_prf.c:202
vop_generic_badop(ffff800021222e38) at vop_generic_badop+0x1b sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd80667207e8,fffffd80685e14a8) at VOP_STRATEGY+0x9b sys/kern/vfs_vops.c:628
bwrite(fffffd80685e14a8) at bwrite+0x1f0 sys/kern/vfs_bio.c:763
VOP_BWRITE(fffffd80685e14a8) at VOP_BWRITE+0x4a sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212230d0) at ufs_mkdir+0x6b4 sys/ufs/ufs/ufs_vnops.c:1236
VOP_MKDIR(fffffd806aa71be0,ffff800021223230,ffff800021223260,ffff800021223160) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
domkdirat(ffff8000fffee2a8,ffffff9c,7f7ffffe86c0,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3116
syscall(ffff8000212233e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212233e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8730, count: -11
ddb{0}> machine ddbcpu 1
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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Anton Lindqvist
Jun 27, 2022, 12:55:48 PM6/27/22
to syzbot, syzkaller-o...@googlegroups.com
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