uvm_fault: solock
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syzbot
Jun 11, 2022, 10:03:30 PM6/11/22
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: a97778adc736 Fix size of flags output buffer.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=146c496ff00000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=4288fa7ff6c528df056f
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+4288fa...@syzkaller.appspotmail.com
uvm_fault(0xfffffd807d8e3550, 0x8, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at solock+0x15: movq 0x8(%rax),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, 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(0xfffffd807d8e3550, 0x8, 0, 1) -> e
ddb> trace
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, count: -10
ddb> show registers
rdi 0xfffffd8079447c80
rsi 0
rbp 0xffff80002e7bac80
rbx 0x19
rdx 0
rcx 0xfffffd80655b5960
rax 0
r8 0
r9 0
r10 0x3baaee2d5c22f5bc
r11 0x828957e97c2c8cd5
r12 0
r13 0
r14 0xfffffd8079447c80
r15 0xfffffd8079447c80
rip 0xffffffff81c722f5 solock+0x15
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002e7bac60
ss 0x10
solock+0x15: movq 0x8(%rax),%rax
ddb> show proc
PROC (syz-executor.6) pid=268171 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=32, usrpri=68, nice=20
forw=0xffffffffffffffff, list=0xffff800024ad9cf0,0xffff8000215ffa50
process=0xffff8000216a1b80 user=0xffff80002e7b6000, vmspace=0xfffffd807d8e3550
estcpu=18, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
14463 438583 22796 0 2 0 syz-executor.3
14463 299490 22796 0 3 0x4000080 fsleep syz-executor.3
53349 256519 34310 0 2 0 syz-executor.0
53349 292518 34310 0 3 0x4000080 fsleep syz-executor.0
66659 4465 83336 0 2 0x81000 syz-executor.2
66659 484351 83336 0 2 0x4081000 syz-executor.2
66659 434757 83336 0 2 0x4081000 syz-executor.2
66659 402864 83336 0 3 0x4003000 suspend syz-executor.2
65989 143960 42872 0 2 0 syz-executor.7
65989 252775 42872 0 3 0x4000080 fsleep syz-executor.7
66643 311334 74026 0 2 0x482 syz-executor.5
22796 421264 74026 0 2 0x482 syz-executor.3
83336 259684 74026 0 3 0x82 nanoslp syz-executor.2
23187 76107 74026 0 3 0x82 nanoslp syz-executor.6
63954 166914 74026 0 2 0x2 syz-executor.4
27949 3558 1 0 3 0x100083 ttyin getty
8344 195616 0 0 3 0x14200 acct acct
42872 52470 74026 0 3 0x82 nanoslp syz-executor.7
91139 471383 0 0 3 0x14200 bored sosplice
34310 71191 74026 0 2 0x482 syz-executor.0
20837 220671 74026 0 2 0x2 syz-executor.1
74026 219097 48585 0 3 0x82 thrsleep syz-fuzzer
74026 447461 48585 0 3 0x4000082 nanoslp syz-fuzzer
74026 112184 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 161516 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 320829 48585 0 3 0x4000082 kqread syz-fuzzer
74026 473194 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 428963 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 269190 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 157420 48585 0 3 0x4000082 thrsleep syz-fuzzer
48585 394744 37822 0 3 0x10008a sigsusp ksh
37822 347159 18742 0 3 0x9a kqread sshd
18742 144640 1 0 3 0x88 kqread sshd
62674 504935 11707 73 3 0x1100090 kqread syslogd
11707 368958 1 0 3 0x100082 netio syslogd
13975 483031 1 0 3 0x100080 kqread resolvd
90497 11064 29680 77 3 0x100092 kqread dhcpleased
86705 25280 29680 77 3 0x100092 kqread dhcpleased
29680 211992 1 0 3 0x80 kqread dhcpleased
33716 227438 0 0 3 0x14200 bored smr
25942 156959 0 0 2 0x14200 zerothread
87788 434790 0 0 3 0x14200 aiodoned aiodoned
74470 44149 0 0 3 0x14200 syncer update
88098 234582 0 0 3 0x14200 cleaner cleaner
15933 377574 0 0 3 0x14200 reaper reaper
12054 197121 0 0 3 0x14200 pgdaemon pagedaemon
64765 57874 0 0 3 0x14200 bored viomb
90422 286718 0 0 3 0x40014200 acpi0 acpi0
67968 399571 0 0 3 0x14200 bored softnet
287 404682 0 0 3 0x14200 bored softnet
74143 482916 0 0 3 0x14200 bored softnet
18259 91991 0 0 3 0x14200 bored softnet
59195 427327 0 0 3 0x14200 bored systqmp
99690 391512 0 0 3 0x14200 bored systq
92087 474923 0 0 2 0x40014200 softclock
37879 452236 0 0 3 0x40014200 idle0
1 183869 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 10251 6566K 7958K 78643K 57668 0
pcb 25 16K 18K 78643K 339 0
rtable 174 5K 9K 78643K 1040 0
ifaddr 69 15K 19K 78643K 471 0
sysctl 2 0K 0K 78643K 2 0
counters 25 17K 17K 78643K 73 0
ioctlops 0 0K 4K 78643K 3343 0
iov 0 0K 16K 78643K 841 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1428 89K 89K 78643K 10818 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 58 0
VM map 2 0K 0K 78643K 2 0
sem 12 0K 0K 78643K 1992 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 15 53K 85K 78643K 13520 0
sigio 0 0K 0K 78643K 56 0
proc 58 59K 83K 78643K 1031 0
subproc 104 6K 6K 78643K 286 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 170 0
in_multi 74 5K 6K 78643K 307 0
ether_multi 1 0K 0K 78643K 12 0
mrt 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 163 731K 731K 78643K 163 0
exec 0 0K 2K 78643K 1464 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 284 219K 252K 78643K 70808 0
UVM aobj 131 8K 8K 78643K 140 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 1 0K 0K 78643K 841 0
NDP 9 0K 2K 78643K 103 0
temp 4247 12987K 24428K 78643K 183958 0
kqueue 12 18K 26K 78643K 316 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 152 0 149 1 0 1 1 0 8 0
rtentry 112 292 0 213 4 0 4 4 0 8 0
unpcb 136 4712 0 4698 37 36 1 7 0 8 0
syncache 296 14 0 14 4 4 0 1 0 8 0
tcpqe 32 11 0 11 3 3 0 1 0 8 0
tcpcb 736 3648 0 3642 111 107 4 14 0 8 3
arp 88 49 0 35 1 0 1 1 0 8 0
inpcb 312 11003 0 10981 113 107 6 11 0 8 3
nd6 48 71 0 52 1 0 1 1 0 8 0
pkpcb 40 9 0 9 1 1 0 1 0 8 0
kcovpl 48 22 0 14 1 0 1 1 0 8 0
ppxss 1152 27 0 27 7 7 0 1 0 8 0
pfstscr 40 7 0 7 2 2 0 1 0 8 0
pfosfp 40 2 0 2 1 1 0 1 0 8 0
pfosfpen 112 2 0 2 1 1 0 1 0 8 0
pfrktable 1344 26 0 26 2 2 0 1 0 8 0
pftag 88 1 0 0 1 0 1 1 0 8 0
pfqueue 264 2 0 2 2 2 0 1 0 8 0
pfstitem 24 4 0 4 1 1 0 1 0 8 0
pfstkey 112 11 0 11 2 2 0 1 0 8 0
pfstate 336 7 0 7 2 2 0 1 0 8 0
pfrule 1360 171 0 170 6 5 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1260 0 920 31 4 27 30 0 8 0
art_table 32 1261 0 920 4 0 4 4 0 8 0
art_node 16 291 0 223 1 0 1 1 0 8 0
sysvmsgpl 40 130 0 99 1 0 1 1 0 8 0
semapl 112 1923 0 1913 1 0 1 1 0 8 0
shmpl 112 137 0 9 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 17553 0 16094 92 0 92 92 0 8 0
ffsino 240 17553 0 16094 87 0 87 87 0 8 0
nchpl 144 35135 0 33503 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 117636 0 117636 6 5 1 2 0 8 1
vcpupl 1984 75 0 3 10 0 10 10 0 8 0
vmpool 528 119 0 47 6 1 5 5 0 8 0
pfiaddrpl 120 13 0 13 2 2 0 1 0 8 0
kstatmem 264 114 0 96 2 0 2 2 0 8 0
scxspl 216 97716 0 97716 12 11 1 8 0 8 1
plimitpl 152 555 0 541 1 0 1 1 0 8 0
sigapl 424 13805 0 13760 8 2 6 8 0 8 0
futexpl 64 141538 0 141535 1 0 1 1 0 8 0
knotepl 120 115820 0 115740 24 20 4 17 0 8 0
kqueuepl 184 1032 0 1024 20 19 1 4 0 8 0
pipepl 304 1661 0 1633 46 43 3 8 0 8 0
fdescpl 432 13767 0 13741 4 0 4 4 0 8 0
filepl 120 78646 0 78329 97 86 11 16 0 8 0
lockfpl 104 1760 0 1758 3 2 1 2 0 8 0
lockfspl 48 492 0 490 1 0 1 1 0 8 0
sessionpl 144 38 0 22 1 0 1 1 0 8 0
pgrppl 48 137 0 121 1 0 1 1 0 8 0
ucredpl 96 5412 0 5402 1 0 1 1 0 8 0
zombiepl 144 13763 0 13760 1 0 1 1 0 8 0
processpl 1000 13805 0 13760 10 3 7 9 0 8 0
procpl 672 32250 0 32191 15 9 6 9 0 8 0
sosppl 168 76 0 76 12 12 0 1 0 8 0
sockpl 448 15886 0 15847 239 229 10 29 0 8 5
mcl64k 65536 346 0 346 20 19 1 1 0 8 1
mcl16k 16384 120 0 120 22 22 0 1 0 8 0
mcl12k 12288 392 0 392 18 17 1 1 0 8 1
mcl9k 9216 113 0 113 25 25 0 1 0 8 0
mcl8k 8192 746 0 746 17 16 1 1 0 8 1
mcl4k 4096 1816 0 1816 7 6 1 1 0 8 1
mcl2k2 2112 100 0 100 25 24 1 1 0 8 1
mcl2k 2048 87835 0 87732 38 22 16 28 0 8 0
mtagpl 96 10846 0 9408 62 18 44 50 0 8 0
mbufpl 256 221985 0 220284 179 49 130 151 0 8 0
bufpl 288 21011 0 14610 458 0 458 458 0 8 0
anonpl 24 2373990 0 2358089 223 122 101 125 0 188 0
amapchunkpl 152 203329 0 202744 55 30 25 36 0 158 0
amappl16 200 33296 0 32729 141 110 31 43 0 8 0
amappl15 192 4159 0 4154 1 0 1 1 0 8 0
amappl14 184 1437 0 1432 1 0 1 1 0 8 0
amappl13 176 2801 0 2798 1 0 1 1 0 8 0
amappl12 168 686 0 682 1 0 1 1 0 8 0
amappl11 160 4608 0 4590 1 0 1 1 0 8 0
amappl10 152 40 0 39 1 0 1 1 0 8 0
amappl9 144 624 0 618 1 0 1 1 0 8 0
amappl8 136 1099 0 1027 3 0 3 3 0 8 0
amappl7 128 372 0 361 1 0 1 1 0 8 0
amappl6 120 408 0 389 2 1 1 2 0 8 0
amappl5 112 8791 0 8777 1 0 1 1 0 8 0
amappl4 104 8560 0 8530 2 0 2 2 0 8 0
amappl3 96 40261 0 40214 2 0 2 2 0 8 0
amappl2 88 17404 0 17341 3 1 2 3 0 8 0
amappl1 80 319082 0 318460 30 16 14 19 0 8 0
amappl 88 69949 0 69788 4 0 4 4 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 72 139 0 9 3 0 3 3 0 8 0
uaddrrnd 24 13886 0 13788 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 13886 0 13788 1 0 1 1 0 8 0
vmmpekpl 168 83577 0 83522 4 1 3 3 0 8 0
vmmpepl 168 1288853 0 1286265 240 116 124 129 0 357 0
vmsppl 272 13885 0 13788 8 1 7 7 0 8 0
rwobjpl 24 302625 0 295023 50 3 47 48 0 8 0
pdppl 4096 27778 0 27648 541 405 136 139 0 8 6
pvpl 32 4597386 0 4577157 374 205 169 238 0 265 0
pmappl 216 13885 0 13788 8 2 6 6 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 1984 0 1001 29 0 29 29 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, count: -10
ddb> machine ddbcpu 1
No such command
ddb> trace
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, count: -10
---
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: a97778adc736 Fix size of flags output buffer.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=146c496ff00000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=4288fa7ff6c528df056f
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+4288fa...@syzkaller.appspotmail.com
uvm_fault(0xfffffd807d8e3550, 0x8, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at solock+0x15: movq 0x8(%rax),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, 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(0xfffffd807d8e3550, 0x8, 0, 1) -> e
ddb> trace
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, count: -10
ddb> show registers
rdi 0xfffffd8079447c80
rsi 0
rbp 0xffff80002e7bac80
rbx 0x19
rdx 0
rcx 0xfffffd80655b5960
rax 0
r8 0
r9 0
r10 0x3baaee2d5c22f5bc
r11 0x828957e97c2c8cd5
r12 0
r13 0
r14 0xfffffd8079447c80
r15 0xfffffd8079447c80
rip 0xffffffff81c722f5 solock+0x15
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002e7bac60
ss 0x10
solock+0x15: movq 0x8(%rax),%rax
ddb> show proc
PROC (syz-executor.6) pid=268171 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=32, usrpri=68, nice=20
forw=0xffffffffffffffff, list=0xffff800024ad9cf0,0xffff8000215ffa50
process=0xffff8000216a1b80 user=0xffff80002e7b6000, vmspace=0xfffffd807d8e3550
estcpu=18, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
14463 438583 22796 0 2 0 syz-executor.3
14463 299490 22796 0 3 0x4000080 fsleep syz-executor.3
53349 256519 34310 0 2 0 syz-executor.0
53349 292518 34310 0 3 0x4000080 fsleep syz-executor.0
66659 4465 83336 0 2 0x81000 syz-executor.2
66659 484351 83336 0 2 0x4081000 syz-executor.2
66659 434757 83336 0 2 0x4081000 syz-executor.2
66659 402864 83336 0 3 0x4003000 suspend syz-executor.2
65989 143960 42872 0 2 0 syz-executor.7
65989 252775 42872 0 3 0x4000080 fsleep syz-executor.7
66643 311334 74026 0 2 0x482 syz-executor.5
22796 421264 74026 0 2 0x482 syz-executor.3
83336 259684 74026 0 3 0x82 nanoslp syz-executor.2
23187 76107 74026 0 3 0x82 nanoslp syz-executor.6
63954 166914 74026 0 2 0x2 syz-executor.4
27949 3558 1 0 3 0x100083 ttyin getty
8344 195616 0 0 3 0x14200 acct acct
42872 52470 74026 0 3 0x82 nanoslp syz-executor.7
91139 471383 0 0 3 0x14200 bored sosplice
34310 71191 74026 0 2 0x482 syz-executor.0
20837 220671 74026 0 2 0x2 syz-executor.1
74026 219097 48585 0 3 0x82 thrsleep syz-fuzzer
74026 447461 48585 0 3 0x4000082 nanoslp syz-fuzzer
74026 112184 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 161516 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 320829 48585 0 3 0x4000082 kqread syz-fuzzer
74026 473194 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 428963 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 269190 48585 0 3 0x4000082 thrsleep syz-fuzzer
74026 157420 48585 0 3 0x4000082 thrsleep syz-fuzzer
48585 394744 37822 0 3 0x10008a sigsusp ksh
37822 347159 18742 0 3 0x9a kqread sshd
18742 144640 1 0 3 0x88 kqread sshd
62674 504935 11707 73 3 0x1100090 kqread syslogd
11707 368958 1 0 3 0x100082 netio syslogd
13975 483031 1 0 3 0x100080 kqread resolvd
90497 11064 29680 77 3 0x100092 kqread dhcpleased
86705 25280 29680 77 3 0x100092 kqread dhcpleased
29680 211992 1 0 3 0x80 kqread dhcpleased
33716 227438 0 0 3 0x14200 bored smr
25942 156959 0 0 2 0x14200 zerothread
87788 434790 0 0 3 0x14200 aiodoned aiodoned
74470 44149 0 0 3 0x14200 syncer update
88098 234582 0 0 3 0x14200 cleaner cleaner
15933 377574 0 0 3 0x14200 reaper reaper
12054 197121 0 0 3 0x14200 pgdaemon pagedaemon
64765 57874 0 0 3 0x14200 bored viomb
90422 286718 0 0 3 0x40014200 acpi0 acpi0
67968 399571 0 0 3 0x14200 bored softnet
287 404682 0 0 3 0x14200 bored softnet
74143 482916 0 0 3 0x14200 bored softnet
18259 91991 0 0 3 0x14200 bored softnet
59195 427327 0 0 3 0x14200 bored systqmp
99690 391512 0 0 3 0x14200 bored systq
92087 474923 0 0 2 0x40014200 softclock
37879 452236 0 0 3 0x40014200 idle0
1 183869 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 10251 6566K 7958K 78643K 57668 0
pcb 25 16K 18K 78643K 339 0
rtable 174 5K 9K 78643K 1040 0
ifaddr 69 15K 19K 78643K 471 0
sysctl 2 0K 0K 78643K 2 0
counters 25 17K 17K 78643K 73 0
ioctlops 0 0K 4K 78643K 3343 0
iov 0 0K 16K 78643K 841 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1428 89K 89K 78643K 10818 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 58 0
VM map 2 0K 0K 78643K 2 0
sem 12 0K 0K 78643K 1992 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 15 53K 85K 78643K 13520 0
sigio 0 0K 0K 78643K 56 0
proc 58 59K 83K 78643K 1031 0
subproc 104 6K 6K 78643K 286 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 170 0
in_multi 74 5K 6K 78643K 307 0
ether_multi 1 0K 0K 78643K 12 0
mrt 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 163 731K 731K 78643K 163 0
exec 0 0K 2K 78643K 1464 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 284 219K 252K 78643K 70808 0
UVM aobj 131 8K 8K 78643K 140 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 1 0K 0K 78643K 841 0
NDP 9 0K 2K 78643K 103 0
temp 4247 12987K 24428K 78643K 183958 0
kqueue 12 18K 26K 78643K 316 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 152 0 149 1 0 1 1 0 8 0
rtentry 112 292 0 213 4 0 4 4 0 8 0
unpcb 136 4712 0 4698 37 36 1 7 0 8 0
syncache 296 14 0 14 4 4 0 1 0 8 0
tcpqe 32 11 0 11 3 3 0 1 0 8 0
tcpcb 736 3648 0 3642 111 107 4 14 0 8 3
arp 88 49 0 35 1 0 1 1 0 8 0
inpcb 312 11003 0 10981 113 107 6 11 0 8 3
nd6 48 71 0 52 1 0 1 1 0 8 0
pkpcb 40 9 0 9 1 1 0 1 0 8 0
kcovpl 48 22 0 14 1 0 1 1 0 8 0
ppxss 1152 27 0 27 7 7 0 1 0 8 0
pfstscr 40 7 0 7 2 2 0 1 0 8 0
pfosfp 40 2 0 2 1 1 0 1 0 8 0
pfosfpen 112 2 0 2 1 1 0 1 0 8 0
pfrktable 1344 26 0 26 2 2 0 1 0 8 0
pftag 88 1 0 0 1 0 1 1 0 8 0
pfqueue 264 2 0 2 2 2 0 1 0 8 0
pfstitem 24 4 0 4 1 1 0 1 0 8 0
pfstkey 112 11 0 11 2 2 0 1 0 8 0
pfstate 336 7 0 7 2 2 0 1 0 8 0
pfrule 1360 171 0 170 6 5 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1260 0 920 31 4 27 30 0 8 0
art_table 32 1261 0 920 4 0 4 4 0 8 0
art_node 16 291 0 223 1 0 1 1 0 8 0
sysvmsgpl 40 130 0 99 1 0 1 1 0 8 0
semapl 112 1923 0 1913 1 0 1 1 0 8 0
shmpl 112 137 0 9 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 17553 0 16094 92 0 92 92 0 8 0
ffsino 240 17553 0 16094 87 0 87 87 0 8 0
nchpl 144 35135 0 33503 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 117636 0 117636 6 5 1 2 0 8 1
vcpupl 1984 75 0 3 10 0 10 10 0 8 0
vmpool 528 119 0 47 6 1 5 5 0 8 0
pfiaddrpl 120 13 0 13 2 2 0 1 0 8 0
kstatmem 264 114 0 96 2 0 2 2 0 8 0
scxspl 216 97716 0 97716 12 11 1 8 0 8 1
plimitpl 152 555 0 541 1 0 1 1 0 8 0
sigapl 424 13805 0 13760 8 2 6 8 0 8 0
futexpl 64 141538 0 141535 1 0 1 1 0 8 0
knotepl 120 115820 0 115740 24 20 4 17 0 8 0
kqueuepl 184 1032 0 1024 20 19 1 4 0 8 0
pipepl 304 1661 0 1633 46 43 3 8 0 8 0
fdescpl 432 13767 0 13741 4 0 4 4 0 8 0
filepl 120 78646 0 78329 97 86 11 16 0 8 0
lockfpl 104 1760 0 1758 3 2 1 2 0 8 0
lockfspl 48 492 0 490 1 0 1 1 0 8 0
sessionpl 144 38 0 22 1 0 1 1 0 8 0
pgrppl 48 137 0 121 1 0 1 1 0 8 0
ucredpl 96 5412 0 5402 1 0 1 1 0 8 0
zombiepl 144 13763 0 13760 1 0 1 1 0 8 0
processpl 1000 13805 0 13760 10 3 7 9 0 8 0
procpl 672 32250 0 32191 15 9 6 9 0 8 0
sosppl 168 76 0 76 12 12 0 1 0 8 0
sockpl 448 15886 0 15847 239 229 10 29 0 8 5
mcl64k 65536 346 0 346 20 19 1 1 0 8 1
mcl16k 16384 120 0 120 22 22 0 1 0 8 0
mcl12k 12288 392 0 392 18 17 1 1 0 8 1
mcl9k 9216 113 0 113 25 25 0 1 0 8 0
mcl8k 8192 746 0 746 17 16 1 1 0 8 1
mcl4k 4096 1816 0 1816 7 6 1 1 0 8 1
mcl2k2 2112 100 0 100 25 24 1 1 0 8 1
mcl2k 2048 87835 0 87732 38 22 16 28 0 8 0
mtagpl 96 10846 0 9408 62 18 44 50 0 8 0
mbufpl 256 221985 0 220284 179 49 130 151 0 8 0
bufpl 288 21011 0 14610 458 0 458 458 0 8 0
anonpl 24 2373990 0 2358089 223 122 101 125 0 188 0
amapchunkpl 152 203329 0 202744 55 30 25 36 0 158 0
amappl16 200 33296 0 32729 141 110 31 43 0 8 0
amappl15 192 4159 0 4154 1 0 1 1 0 8 0
amappl14 184 1437 0 1432 1 0 1 1 0 8 0
amappl13 176 2801 0 2798 1 0 1 1 0 8 0
amappl12 168 686 0 682 1 0 1 1 0 8 0
amappl11 160 4608 0 4590 1 0 1 1 0 8 0
amappl10 152 40 0 39 1 0 1 1 0 8 0
amappl9 144 624 0 618 1 0 1 1 0 8 0
amappl8 136 1099 0 1027 3 0 3 3 0 8 0
amappl7 128 372 0 361 1 0 1 1 0 8 0
amappl6 120 408 0 389 2 1 1 2 0 8 0
amappl5 112 8791 0 8777 1 0 1 1 0 8 0
amappl4 104 8560 0 8530 2 0 2 2 0 8 0
amappl3 96 40261 0 40214 2 0 2 2 0 8 0
amappl2 88 17404 0 17341 3 1 2 3 0 8 0
amappl1 80 319082 0 318460 30 16 14 19 0 8 0
amappl 88 69949 0 69788 4 0 4 4 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 72 139 0 9 3 0 3 3 0 8 0
uaddrrnd 24 13886 0 13788 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 13886 0 13788 1 0 1 1 0 8 0
vmmpekpl 168 83577 0 83522 4 1 3 3 0 8 0
vmmpepl 168 1288853 0 1286265 240 116 124 129 0 357 0
vmsppl 272 13885 0 13788 8 1 7 7 0 8 0
rwobjpl 24 302625 0 295023 50 3 47 48 0 8 0
pdppl 4096 27778 0 27648 541 405 136 139 0 8 6
pvpl 32 4597386 0 4577157 374 205 169 238 0 265 0
pmappl 216 13885 0 13788 8 2 6 6 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 1984 0 1001 29 0 29 29 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, count: -10
ddb> machine ddbcpu 1
No such command
ddb> trace
solock(fffffd8079447c80) at solock+0x15 sys/kern/uipc_socket2.c:282
soclose(fffffd8079447c80,0) at soclose+0x2f sys/kern/uipc_socket.c:328
soo_close(fffffd80655b5b40,ffff8000215ff260) at soo_close+0x40
fdrop(fffffd80655b5b40,ffff8000215ff260) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd80655b5b40,ffff8000215ff260) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff8000215ff260) at fdfree+0xe3 sys/kern/kern_descrip.c:1195
exit1(ffff8000215ff260,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:202
sys_exit(ffff8000215ff260,ffff80002e7baed0,ffff80002e7baf30) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff80002e7bafa0) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd9bc0, count: -10
---
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syzbot
Sep 9, 2022, 10:03:22 PM9/9/22
to syzkaller-o...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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