uvm_fault: ufs_rmdir
0 views
Skip to first unread message
syzbot
May 10, 2024, 12:31:33 AM (10 days ago) May 10
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: fbadb84b3757 Make the DH_METHOD static const
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=128ee750980000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=1701d82d6c97830d6e81
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/15a0465477f6/disk-fbadb84b.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/74c072e7fa20/bsd-fbadb84b.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d03281cb04d2/kernel-fbadb84b.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+1701d8...@syzkaller.appspotmail.com
uvm_fault(0xfffffd806924e418, 0x58, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at ufs_rmdir+0x278: movl 0x58(%rax),%edx
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 56969 74974 0 0x8000002 0 0 syz-executor.5
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: 10
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> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xfffffd806924e418, 0x58, 0, 1) -> e
ddb> trace
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: -5
ddb> show registers
rdi 0x1
rsi 0x2
rbp 0xffff8000377b6e80
rbx 0xfffffd806b1fc878
rdx 0
rcx 0xffffffff82c46ff0 cpu_info_full_primary+0x1ff0
rax 0
r8 0x2
r9 0
r10 0x63a58eae884bbdd3
r11 0xffffffff82635f70 ffs_truncate
r12 0xfffffd806e8074c0
r13 0
r14 0xfffffd806b741cb0
r15 0xfffffd80530eb1c0
rip 0xffffffff81d494e8 ufs_rmdir+0x278
cs 0x8
rflags 0x10206 __ALIGN_SIZE+0xf206
rsp 0xffff8000377b6e20
ss 0x10
ufs_rmdir+0x278: movl 0x58(%rax),%edx
ddb> show proc
PROC (syz-executor.5) tid=56969 pid=74974 tcnt=1 stat=onproc
flags process=8000002<EXEC> proc=0
runpri=17, usrpri=84, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a678a60,0xffff80002a6d2d10
process=0xffff8000329890d8 user=0xffff8000377b2000, vmspace=0xfffffd806924e418
estcpu=34, cpticks=0, pctcpu=0.19, user=0, sys=19, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
81792 358334 87136 0 2 0x8000000 syz-executor.0
81792 399125 87136 0 2 0xc000000 syz-executor.0
81792 108483 87136 0 3 0xc000080 fsleep syz-executor.0
74653 321407 58551 0 2 0x8000000 syz-executor.6
74653 278307 58551 0 3 0xc000080 fsleep syz-executor.6
3202 210668 1291 0 2 0x8000000 syz-executor.4
3202 323376 1291 0 3 0xc000080 fsleep syz-executor.4
3202 225300 1291 0 3 0xc000080 sbwait syz-executor.4
20257 171141 40375 0 2 0xc000000 syz-executor.2
20257 370140 40375 0 2 0xc000000 syz-executor.2
88770 55936 69762 0 2 0x8000002 syz-executor.1
58551 24186 69762 0 2 0x8000482 syz-executor.6
*74974 56969 69762 0 7 0x8000002 syz-executor.5
7504 8587 69762 0 2 0x8000482 syz-executor.3
40375 387941 69762 0 2 0x8000482 syz-executor.2
53830 138241 69762 0 2 0x8000482 syz-executor.7
1291 210174 69762 0 2 0x8000482 syz-executor.4
87136 190753 69762 0 2 0x8000482 syz-executor.0
54905 377996 20523 0 3 0x18100082 netio ndp
20523 170527 1 0 3 0x810008a sigsusp sh
31932 178683 1 0 2 0x18100083 getty
23121 324242 36667 0 3 0x18100082 netio ndp
36667 164812 1 0 3 0x810008a sigsusp sh
88815 427072 13194 0 3 0x18100082 netio arp
13194 228307 1 0 3 0x810008a sigsusp sh
55849 203231 0 0 3 0x14280 nfsidl nfsio
18847 85348 0 0 3 0x14280 nfsidl nfsio
5539 57908 0 0 3 0x14280 nfsidl nfsio
19191 315412 0 0 3 0x14280 nfsidl nfsio
32243 192463 0 0 3 0x14280 nfsidl nfsio
86655 375004 0 0 3 0x14280 nfsidl nfsio
10991 400528 0 0 3 0x14280 nfsidl nfsio
77471 23078 0 0 3 0x14280 nfsidl nfsio
56346 485320 0 0 3 0x14280 nfsidl nfsio
63913 342504 0 0 3 0x14280 nfsidl nfsio
82054 139594 0 0 3 0x14280 nfsidl nfsio
66871 177399 0 0 3 0x14280 nfsidl nfsio
13188 64098 0 0 3 0x14280 nfsidl nfsio
55671 132499 0 0 3 0x14280 nfsidl nfsio
74861 107129 0 0 3 0x14280 nfsidl nfsio
80821 207670 0 0 3 0x14280 nfsidl nfsio
68902 505939 0 0 3 0x14280 nfsidl nfsio
48992 153116 0 0 3 0x14280 nfsidl nfsio
21767 364417 0 0 3 0x14280 nfsidl nfsio
88871 361133 0 0 3 0x14280 nfsidl nfsio
61599 297316 0 0 3 0x14200 bored sosplice
69762 398551 85728 0 3 0x1a000082 wait syz-fuzzer
69762 317914 85728 0 2 0x1e000482 syz-fuzzer
69762 46282 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 377083 85728 0 3 0x1e000082 wait syz-fuzzer
69762 455200 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 188429 85728 0 3 0x1e000082 wait syz-fuzzer
69762 188023 85728 0 3 0x1e000082 wait syz-fuzzer
69762 362855 85728 0 3 0x1e000082 wait syz-fuzzer
69762 483548 85728 0 2 0x1e000482 syz-fuzzer
69762 488936 85728 0 3 0x1e000082 wait syz-fuzzer
69762 123170 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 274307 85728 0 3 0x1e000082 wait syz-fuzzer
69762 132410 85728 0 3 0x1e000082 wait syz-fuzzer
69762 46734 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 450803 85728 0 3 0x1e000082 thrsleep syz-fuzzer
85728 314969 36733 0 3 0x810008a sigsusp ksh
36733 204751 77151 0 3 0x1800009a kqread sshd
77151 486732 1 0 3 0x18000088 kqread sshd
54857 289802 46334 73 2 0x19100010 syslogd
46334 212299 1 0 3 0x18100082 sbwait syslogd
73623 365654 1 0 3 0x18100080 kqread resolvd
63330 403037 70097 77 3 0x18100092 kqread dhcpleased
18331 363575 70097 77 3 0x18100092 kqread dhcpleased
70097 318588 1 0 3 0x18000080 kqread dhcpleased
52440 140710 0 0 2 0x14200 smr
49045 392950 0 0 2 0x14200 zerothread
28232 310157 0 0 3 0x14200 aiodoned aiodoned
19719 154647 0 0 3 0x14200 syncer update
84804 67399 0 0 3 0x14200 cleaner cleaner
95285 451085 0 0 3 0x14200 reaper reaper
60469 78219 0 0 3 0x14200 pgdaemon pagedaemon
76719 75248 0 0 3 0x14200 bored viomb
9499 416942 0 0 3 0x40014200 acpi0 acpi0
89387 202731 0 0 3 0x14200 bored softnet3
84164 491706 0 0 3 0x14200 bored softnet2
98360 276350 0 0 3 0x14200 bored softnet1
60030 62927 0 0 3 0x14200 bored softnet0
8505 358215 0 0 3 0x14200 bored systqmp
36617 367287 0 0 3 0x14200 bored systq
23195 292364 0 0 2 0x40014200 softclock
3980 353372 0 0 3 0x40014200 idle0
1 499767 0 0 3 0x8000082 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 10200 6551K 10636K 166960K 14303 0
pcb 17 13K 14K 166960K 240 0
rtable 217 9K 9K 166960K 2915 0
pf 32 9K 9K 166960K 266 0
ifaddr 41 11K 12K 166960K 410 0
ifgroup 55 2K 2K 166960K 489 0
sysctl 4 1K 1K 166960K 10 0
counters 31 17K 17K 166960K 139 0
ioctlops 0 0K 2K 166960K 188 0
iov 1 2K 24K 166960K 155 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1540 97K 97K 166960K 3968 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 68K 72K 166960K 54 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 178 0
dirhash 12 2K 3K 166960K 66 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 21 77K 113K 166960K 2653 0
sigio 0 0K 0K 166960K 33 0
proc 58 59K 124K 166960K 2913 0
subproc 143 8K 8K 166960K 1329 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 214 0
in_multi 88 6K 7K 166960K 1054 0
ether_multi 1 0K 0K 166960K 14 0
mrt 1 0K 0K 166960K 7 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 157 705K 705K 166960K 157 0
exec 0 0K 1K 166960K 1563 0
pfkey data 0 0K 4K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 308 109K 131K 166960K 21032 0
UVM aobj 102 5K 6K 166960K 113 0
pinsyscall 44 88K 108K 166960K 6029 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 89 0
NDP 12 0K 2K 166960K 301 0
temp 74 6812K 6940K 166960K 40475 0
kqueue 12 18K 27K 166960K 235 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 120 379 0 373 2 0 2 2 0 8 1
rtentry 112 1038 0 941 4 0 4 4 0 8 0
unpcb 144 1176 0 1157 6 0 6 6 0 8 5
syncache 336 4 0 4 1 0 1 1 0 8 1
sackhl 24 2 0 2 1 0 1 1 0 8 1
tcpqe 32 16 0 16 1 0 1 1 0 8 1
tcpcb 808 472 0 465 5 0 5 5 0 8 4
arp 88 189 0 173 1 0 1 1 0 8 0
ipq 40 6 0 5 1 0 1 1 0 8 0
ipqe 40 97 0 96 1 0 1 1 0 8 0
inpcb 352 1933 0 1923 5 0 5 5 0 8 4
nd6 104 271 0 250 1 0 1 1 0 8 0
pkpcb 40 82 0 82 1 0 1 1 0 8 1
kcovpl 48 102 0 91 1 0 1 1 0 8 0
ppxss 1072 9 0 9 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 4193 0 3778 82 53 29 30 0 8 0
art_table 32 4194 0 3778 4 0 4 4 0 8 0
art_node 16 1035 0 947 1 0 1 1 0 8 0
sysvmsgpl 40 17 0 5 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 175 0 165 1 0 1 1 0 8 0
shmpl 112 110 0 11 3 0 3 3 0 8 0
dirhash 1024 53 0 36 3 0 3 3 0 8 0
dino2pl 256 4064 0 2547 96 0 96 96 0 8 0
ffsino 240 4064 0 2547 90 0 90 90 0 8 0
nchpl 144 6912 0 5175 66 0 66 66 0 8 0
uvmvnodes 80 6361 0 0 130 0 130 130 0 8 0
vnodes 216 6361 0 0 354 0 354 354 0 8 0
vnodes: pool(0xffffffff82dd4c50:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd806b741f90 (p 0xfffffd806b741000)
namei 1024 32406 0 32404 3 0 3 3 0 8 2
vcpupl 3904 6 0 1 1 0 1 1 0 8 0
vmpool 664 9 0 4 1 0 1 1 0 8 0
kstatmem 264 240 0 216 2 0 2 2 0 8 0
scxspl 216 50987 0 50987 8 0 8 8 1 8 8
plimitpl 152 319 0 300 1 0 1 1 0 8 0
sigapl 424 2789 0 2719 9 0 9 9 0 8 0
futexpl 64 25356 0 25353 1 0 1 1 0 8 0
knotepl 120 8479 0 8397 11 0 11 11 0 8 6
kqueuepl 184 518 0 507 3 0 3 3 0 8 2
pipepl 288 675 0 638 3 0 3 3 0 8 0
fdescpl 432 2752 0 2720 5 0 5 5 0 8 0
filepl 120 15268 0 14953 14 0 14 14 0 8 4
lockfpl 104 461 0 459 1 0 1 1 0 8 0
lockfspl 48 204 0 202 1 0 1 1 0 8 0
sessionpl 144 112 0 93 1 0 1 1 0 8 0
pgrppl 48 132 0 113 1 0 1 1 0 8 0
ucredpl 104 2125 0 2113 1 0 1 1 0 8 0
zombiepl 144 2721 0 2719 1 0 1 1 0 8 0
processpl 1072 2789 0 2719 6 0 6 6 0 8 0
procpl 656 4471 0 4381 9 0 9 9 0 8 1
sosppl 168 16 0 16 1 0 1 1 0 8 1
sockpl 504 3624 0 3588 35 23 12 22 0 8 7
mcl64k 65536 14 0 14 1 0 1 1 0 8 1
mcl12k 12288 1 0 1 1 0 1 1 0 8 1
mcl8k 8192 38 0 37 1 0 1 1 0 8 0
mcl4k 4096 14 0 14 1 0 1 1 0 8 1
mcl2k2 2112 2 0 2 1 0 1 1 0 8 1
mcl2k 2048 29072 0 28974 37 17 20 37 0 8 5
mtagpl 96 68 0 66 1 0 1 1 0 8 0
mbufpl 256 79597 0 79393 85 59 26 71 0 8 7
bufpl 280 10627 0 2557 577 0 577 577 0 8 0
anonpl 24 482147 0 475370 97 0 97 97 0 188 43
amapchunkpl 152 69239 0 68526 49 0 49 49 0 158 15
amappl16 200 9765 0 9631 45 29 16 22 0 8 7
amappl15 192 125 0 124 1 0 1 1 0 8 0
amappl14 184 481 0 463 2 0 2 2 0 8 0
amappl13 176 9 0 9 1 0 1 1 0 8 1
amappl12 168 4638 0 4603 3 0 3 3 0 8 0
amappl11 160 68 0 58 1 0 1 1 0 8 0
amappl10 152 195 0 185 1 0 1 1 0 8 0
amappl9 144 169 0 169 1 0 1 1 0 8 1
amappl8 136 298 0 267 2 0 2 2 0 8 0
amappl7 128 62 0 46 1 0 1 1 0 8 0
amappl6 120 1407 0 1385 2 0 2 2 0 8 1
amappl5 112 506 0 494 1 0 1 1 0 8 0
amappl4 104 1096 0 1059 2 0 2 2 0 8 0
amappl3 96 12599 0 12505 3 0 3 3 0 8 0
amappl2 88 3407 0 3326 4 0 4 4 0 8 1
amappl1 80 22690 0 22109 22 2 20 22 0 8 6
amappl 88 19801 0 19593 6 0 6 6 0 92 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 72 112 0 11 2 0 2 2 0 8 0
uaddrrnd 24 2761 0 2724 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2761 0 2724 1 0 1 1 0 8 0
vmmpekpl 168 25159 0 25089 4 0 4 4 0 8 0
vmmpepl 168 211743 0 209702 112 0 112 112 0 357 17
vmsppl 344 2760 0 2724 5 0 5 5 0 8 0
rwobjpl 24 59900 0 52200 47 0 47 47 0 8 0
pdppl 4096 5528 0 5453 315 233 82 94 0 8 7
pvpl 32 1279923 0 1266192 367 15 352 367 0 265 226
pmappl 216 2760 0 2724 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 762 0 385 13 0 13 13 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: -5
ddb> machine ddbcpu 1
No such command
ddb> trace
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: -5
---
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.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(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: fbadb84b3757 Make the DH_METHOD static const
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=128ee750980000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=1701d82d6c97830d6e81
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/15a0465477f6/disk-fbadb84b.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/74c072e7fa20/bsd-fbadb84b.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d03281cb04d2/kernel-fbadb84b.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+1701d8...@syzkaller.appspotmail.com
uvm_fault(0xfffffd806924e418, 0x58, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at ufs_rmdir+0x278: movl 0x58(%rax),%edx
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 56969 74974 0 0x8000002 0 0 syz-executor.5
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: 10
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> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xfffffd806924e418, 0x58, 0, 1) -> e
ddb> trace
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: -5
ddb> show registers
rdi 0x1
rsi 0x2
rbp 0xffff8000377b6e80
rbx 0xfffffd806b1fc878
rdx 0
rcx 0xffffffff82c46ff0 cpu_info_full_primary+0x1ff0
rax 0
r8 0x2
r9 0
r10 0x63a58eae884bbdd3
r11 0xffffffff82635f70 ffs_truncate
r12 0xfffffd806e8074c0
r13 0
r14 0xfffffd806b741cb0
r15 0xfffffd80530eb1c0
rip 0xffffffff81d494e8 ufs_rmdir+0x278
cs 0x8
rflags 0x10206 __ALIGN_SIZE+0xf206
rsp 0xffff8000377b6e20
ss 0x10
ufs_rmdir+0x278: movl 0x58(%rax),%edx
ddb> show proc
PROC (syz-executor.5) tid=56969 pid=74974 tcnt=1 stat=onproc
flags process=8000002<EXEC> proc=0
runpri=17, usrpri=84, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a678a60,0xffff80002a6d2d10
process=0xffff8000329890d8 user=0xffff8000377b2000, vmspace=0xfffffd806924e418
estcpu=34, cpticks=0, pctcpu=0.19, user=0, sys=19, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
81792 358334 87136 0 2 0x8000000 syz-executor.0
81792 399125 87136 0 2 0xc000000 syz-executor.0
81792 108483 87136 0 3 0xc000080 fsleep syz-executor.0
74653 321407 58551 0 2 0x8000000 syz-executor.6
74653 278307 58551 0 3 0xc000080 fsleep syz-executor.6
3202 210668 1291 0 2 0x8000000 syz-executor.4
3202 323376 1291 0 3 0xc000080 fsleep syz-executor.4
3202 225300 1291 0 3 0xc000080 sbwait syz-executor.4
20257 171141 40375 0 2 0xc000000 syz-executor.2
20257 370140 40375 0 2 0xc000000 syz-executor.2
88770 55936 69762 0 2 0x8000002 syz-executor.1
58551 24186 69762 0 2 0x8000482 syz-executor.6
*74974 56969 69762 0 7 0x8000002 syz-executor.5
7504 8587 69762 0 2 0x8000482 syz-executor.3
40375 387941 69762 0 2 0x8000482 syz-executor.2
53830 138241 69762 0 2 0x8000482 syz-executor.7
1291 210174 69762 0 2 0x8000482 syz-executor.4
87136 190753 69762 0 2 0x8000482 syz-executor.0
54905 377996 20523 0 3 0x18100082 netio ndp
20523 170527 1 0 3 0x810008a sigsusp sh
31932 178683 1 0 2 0x18100083 getty
23121 324242 36667 0 3 0x18100082 netio ndp
36667 164812 1 0 3 0x810008a sigsusp sh
88815 427072 13194 0 3 0x18100082 netio arp
13194 228307 1 0 3 0x810008a sigsusp sh
55849 203231 0 0 3 0x14280 nfsidl nfsio
18847 85348 0 0 3 0x14280 nfsidl nfsio
5539 57908 0 0 3 0x14280 nfsidl nfsio
19191 315412 0 0 3 0x14280 nfsidl nfsio
32243 192463 0 0 3 0x14280 nfsidl nfsio
86655 375004 0 0 3 0x14280 nfsidl nfsio
10991 400528 0 0 3 0x14280 nfsidl nfsio
77471 23078 0 0 3 0x14280 nfsidl nfsio
56346 485320 0 0 3 0x14280 nfsidl nfsio
63913 342504 0 0 3 0x14280 nfsidl nfsio
82054 139594 0 0 3 0x14280 nfsidl nfsio
66871 177399 0 0 3 0x14280 nfsidl nfsio
13188 64098 0 0 3 0x14280 nfsidl nfsio
55671 132499 0 0 3 0x14280 nfsidl nfsio
74861 107129 0 0 3 0x14280 nfsidl nfsio
80821 207670 0 0 3 0x14280 nfsidl nfsio
68902 505939 0 0 3 0x14280 nfsidl nfsio
48992 153116 0 0 3 0x14280 nfsidl nfsio
21767 364417 0 0 3 0x14280 nfsidl nfsio
88871 361133 0 0 3 0x14280 nfsidl nfsio
61599 297316 0 0 3 0x14200 bored sosplice
69762 398551 85728 0 3 0x1a000082 wait syz-fuzzer
69762 317914 85728 0 2 0x1e000482 syz-fuzzer
69762 46282 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 377083 85728 0 3 0x1e000082 wait syz-fuzzer
69762 455200 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 188429 85728 0 3 0x1e000082 wait syz-fuzzer
69762 188023 85728 0 3 0x1e000082 wait syz-fuzzer
69762 362855 85728 0 3 0x1e000082 wait syz-fuzzer
69762 483548 85728 0 2 0x1e000482 syz-fuzzer
69762 488936 85728 0 3 0x1e000082 wait syz-fuzzer
69762 123170 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 274307 85728 0 3 0x1e000082 wait syz-fuzzer
69762 132410 85728 0 3 0x1e000082 wait syz-fuzzer
69762 46734 85728 0 3 0x1e000082 thrsleep syz-fuzzer
69762 450803 85728 0 3 0x1e000082 thrsleep syz-fuzzer
85728 314969 36733 0 3 0x810008a sigsusp ksh
36733 204751 77151 0 3 0x1800009a kqread sshd
77151 486732 1 0 3 0x18000088 kqread sshd
54857 289802 46334 73 2 0x19100010 syslogd
46334 212299 1 0 3 0x18100082 sbwait syslogd
73623 365654 1 0 3 0x18100080 kqread resolvd
63330 403037 70097 77 3 0x18100092 kqread dhcpleased
18331 363575 70097 77 3 0x18100092 kqread dhcpleased
70097 318588 1 0 3 0x18000080 kqread dhcpleased
52440 140710 0 0 2 0x14200 smr
49045 392950 0 0 2 0x14200 zerothread
28232 310157 0 0 3 0x14200 aiodoned aiodoned
19719 154647 0 0 3 0x14200 syncer update
84804 67399 0 0 3 0x14200 cleaner cleaner
95285 451085 0 0 3 0x14200 reaper reaper
60469 78219 0 0 3 0x14200 pgdaemon pagedaemon
76719 75248 0 0 3 0x14200 bored viomb
9499 416942 0 0 3 0x40014200 acpi0 acpi0
89387 202731 0 0 3 0x14200 bored softnet3
84164 491706 0 0 3 0x14200 bored softnet2
98360 276350 0 0 3 0x14200 bored softnet1
60030 62927 0 0 3 0x14200 bored softnet0
8505 358215 0 0 3 0x14200 bored systqmp
36617 367287 0 0 3 0x14200 bored systq
23195 292364 0 0 2 0x40014200 softclock
3980 353372 0 0 3 0x40014200 idle0
1 499767 0 0 3 0x8000082 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 10200 6551K 10636K 166960K 14303 0
pcb 17 13K 14K 166960K 240 0
rtable 217 9K 9K 166960K 2915 0
pf 32 9K 9K 166960K 266 0
ifaddr 41 11K 12K 166960K 410 0
ifgroup 55 2K 2K 166960K 489 0
sysctl 4 1K 1K 166960K 10 0
counters 31 17K 17K 166960K 139 0
ioctlops 0 0K 2K 166960K 188 0
iov 1 2K 24K 166960K 155 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1540 97K 97K 166960K 3968 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 68K 72K 166960K 54 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 178 0
dirhash 12 2K 3K 166960K 66 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 21 77K 113K 166960K 2653 0
sigio 0 0K 0K 166960K 33 0
proc 58 59K 124K 166960K 2913 0
subproc 143 8K 8K 166960K 1329 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 214 0
in_multi 88 6K 7K 166960K 1054 0
ether_multi 1 0K 0K 166960K 14 0
mrt 1 0K 0K 166960K 7 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 157 705K 705K 166960K 157 0
exec 0 0K 1K 166960K 1563 0
pfkey data 0 0K 4K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 308 109K 131K 166960K 21032 0
UVM aobj 102 5K 6K 166960K 113 0
pinsyscall 44 88K 108K 166960K 6029 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 89 0
NDP 12 0K 2K 166960K 301 0
temp 74 6812K 6940K 166960K 40475 0
kqueue 12 18K 27K 166960K 235 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 120 379 0 373 2 0 2 2 0 8 1
rtentry 112 1038 0 941 4 0 4 4 0 8 0
unpcb 144 1176 0 1157 6 0 6 6 0 8 5
syncache 336 4 0 4 1 0 1 1 0 8 1
sackhl 24 2 0 2 1 0 1 1 0 8 1
tcpqe 32 16 0 16 1 0 1 1 0 8 1
tcpcb 808 472 0 465 5 0 5 5 0 8 4
arp 88 189 0 173 1 0 1 1 0 8 0
ipq 40 6 0 5 1 0 1 1 0 8 0
ipqe 40 97 0 96 1 0 1 1 0 8 0
inpcb 352 1933 0 1923 5 0 5 5 0 8 4
nd6 104 271 0 250 1 0 1 1 0 8 0
pkpcb 40 82 0 82 1 0 1 1 0 8 1
kcovpl 48 102 0 91 1 0 1 1 0 8 0
ppxss 1072 9 0 9 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 4193 0 3778 82 53 29 30 0 8 0
art_table 32 4194 0 3778 4 0 4 4 0 8 0
art_node 16 1035 0 947 1 0 1 1 0 8 0
sysvmsgpl 40 17 0 5 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 175 0 165 1 0 1 1 0 8 0
shmpl 112 110 0 11 3 0 3 3 0 8 0
dirhash 1024 53 0 36 3 0 3 3 0 8 0
dino2pl 256 4064 0 2547 96 0 96 96 0 8 0
ffsino 240 4064 0 2547 90 0 90 90 0 8 0
nchpl 144 6912 0 5175 66 0 66 66 0 8 0
uvmvnodes 80 6361 0 0 130 0 130 130 0 8 0
vnodes 216 6361 0 0 354 0 354 354 0 8 0
vnodes: pool(0xffffffff82dd4c50:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd806b741f90 (p 0xfffffd806b741000)
namei 1024 32406 0 32404 3 0 3 3 0 8 2
vcpupl 3904 6 0 1 1 0 1 1 0 8 0
vmpool 664 9 0 4 1 0 1 1 0 8 0
kstatmem 264 240 0 216 2 0 2 2 0 8 0
scxspl 216 50987 0 50987 8 0 8 8 1 8 8
plimitpl 152 319 0 300 1 0 1 1 0 8 0
sigapl 424 2789 0 2719 9 0 9 9 0 8 0
futexpl 64 25356 0 25353 1 0 1 1 0 8 0
knotepl 120 8479 0 8397 11 0 11 11 0 8 6
kqueuepl 184 518 0 507 3 0 3 3 0 8 2
pipepl 288 675 0 638 3 0 3 3 0 8 0
fdescpl 432 2752 0 2720 5 0 5 5 0 8 0
filepl 120 15268 0 14953 14 0 14 14 0 8 4
lockfpl 104 461 0 459 1 0 1 1 0 8 0
lockfspl 48 204 0 202 1 0 1 1 0 8 0
sessionpl 144 112 0 93 1 0 1 1 0 8 0
pgrppl 48 132 0 113 1 0 1 1 0 8 0
ucredpl 104 2125 0 2113 1 0 1 1 0 8 0
zombiepl 144 2721 0 2719 1 0 1 1 0 8 0
processpl 1072 2789 0 2719 6 0 6 6 0 8 0
procpl 656 4471 0 4381 9 0 9 9 0 8 1
sosppl 168 16 0 16 1 0 1 1 0 8 1
sockpl 504 3624 0 3588 35 23 12 22 0 8 7
mcl64k 65536 14 0 14 1 0 1 1 0 8 1
mcl12k 12288 1 0 1 1 0 1 1 0 8 1
mcl8k 8192 38 0 37 1 0 1 1 0 8 0
mcl4k 4096 14 0 14 1 0 1 1 0 8 1
mcl2k2 2112 2 0 2 1 0 1 1 0 8 1
mcl2k 2048 29072 0 28974 37 17 20 37 0 8 5
mtagpl 96 68 0 66 1 0 1 1 0 8 0
mbufpl 256 79597 0 79393 85 59 26 71 0 8 7
bufpl 280 10627 0 2557 577 0 577 577 0 8 0
anonpl 24 482147 0 475370 97 0 97 97 0 188 43
amapchunkpl 152 69239 0 68526 49 0 49 49 0 158 15
amappl16 200 9765 0 9631 45 29 16 22 0 8 7
amappl15 192 125 0 124 1 0 1 1 0 8 0
amappl14 184 481 0 463 2 0 2 2 0 8 0
amappl13 176 9 0 9 1 0 1 1 0 8 1
amappl12 168 4638 0 4603 3 0 3 3 0 8 0
amappl11 160 68 0 58 1 0 1 1 0 8 0
amappl10 152 195 0 185 1 0 1 1 0 8 0
amappl9 144 169 0 169 1 0 1 1 0 8 1
amappl8 136 298 0 267 2 0 2 2 0 8 0
amappl7 128 62 0 46 1 0 1 1 0 8 0
amappl6 120 1407 0 1385 2 0 2 2 0 8 1
amappl5 112 506 0 494 1 0 1 1 0 8 0
amappl4 104 1096 0 1059 2 0 2 2 0 8 0
amappl3 96 12599 0 12505 3 0 3 3 0 8 0
amappl2 88 3407 0 3326 4 0 4 4 0 8 1
amappl1 80 22690 0 22109 22 2 20 22 0 8 6
amappl 88 19801 0 19593 6 0 6 6 0 92 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 72 112 0 11 2 0 2 2 0 8 0
uaddrrnd 24 2761 0 2724 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2761 0 2724 1 0 1 1 0 8 0
vmmpekpl 168 25159 0 25089 4 0 4 4 0 8 0
vmmpepl 168 211743 0 209702 112 0 112 112 0 357 17
vmsppl 344 2760 0 2724 5 0 5 5 0 8 0
rwobjpl 24 59900 0 52200 47 0 47 47 0 8 0
pdppl 4096 5528 0 5453 315 233 82 94 0 8 7
pvpl 32 1279923 0 1266192 367 15 352 367 0 265 226
pmappl 216 2760 0 2724 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 762 0 385 13 0 13 13 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: -5
ddb> machine ddbcpu 1
No such command
ddb> trace
ufs_rmdir(ffff8000377b6e98) at ufs_rmdir+0x278 sys/ufs/ufs/ufs_vnops.c:1270
VOP_RMDIR(fffffd80530eb1c0,fffffd806b741cb0,ffff8000377b6f78) at VOP_RMDIR+0x12a sys/kern/vfs_vops.c:407
dounlinkat(ffff80002a5d79a8,ffffff9c,71cba698f850,8) at dounlinkat+0x20e sys/kern/vfs_syscalls.c:1888
syscall(ffff8000377b70f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x71cba698f840, count: -5
---
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.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(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
Reply all
Reply to author
Forward
0 new messages