panic:W ApRooNIl_NGc:a cShPeL_ iNtOemT _LmOagWEiRcE_Dc hOecN kS:Y SmCbAuLfL pl2 7c9p2u9 4f42re42e EliXIsTt 0m oad
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syzbot
Mar 2, 2020, 2:10:10 AM3/2/20
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 23a32f86 Allow armv7 efiboot(8) to read from an ffs2 files..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=177c52c3e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=e6f88471e7b80f69b308
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+e6f884...@syzkaller.appspotmail.com
panic:W ApRooNIl_NGc:a cShPeL_ iNtOemT _LmOagWEiRcE_Dc hOecN kS:Y SmCbAuLfL pl2 7c9p2u9 4f42re42e EliXIsTt 0m oad
i
fiStopped at savectx+0xb1: movl $0,%gs:0x530
TID PID UID PRFLAGS PFLAGS CPU COMMAND
151713 6037 0 0 0x4000000 0 syz-executor.0
*256384 99482 0 0x2 0 1 syz-executor.1
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7fffff1990, count: 14
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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806611a200+16 0x0!=0xb9e1cf0ffd76dc5
ddb{1}> trace
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7fffff1990, count: -1
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff800020ba9690
rbx 0
rdx 0xffff800020ac3878
rcx 0
rax 0x39
r8 0xffffffff8164a22f kprintf+0x16f
r9 0x1
r10 0x25
r11 0xd4ab9f22dcbdca8
r12 0
r13 0
r14 0xffff800020ac3878
r15 0
rip 0xffffffff81fd73f1 savectx+0xb1
cs 0x8
rflags 0x46
rsp 0xffff800020ba9610
ss 0x10
savectx+0xb1: movl $0,%gs:0x530
ddb{1}> show proc
PROC (syz-executor.1) pid=256384 stat=onproc
flags process=2<EXEC> proc=0
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020a7dad8,0xffff800020ac3138
process=0xffff800020a90010 user=0xffff800020ba4000, vmspace=0xfffffd807f000cf0
estcpu=36, cpticks=6, pctcpu=0.7
user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
2407 306959 99482 0 2 0 syz-executor.1
6037 323306 455 0 2 0 syz-executor.0
6037 151713 455 0 7 0x4000000 syz-executor.0
65568 489628 0 0 3 0x14200 bored sosplice
*99482 256384 92283 0 7 0x2 syz-executor.1
455 23701 92283 0 3 0x82 nanosleep syz-executor.0
92283 160964 91459 0 3 0x82 thrsleep syz-fuzzer
92283 99255 91459 0 3 0x4000082 nanosleep syz-fuzzer
92283 227542 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 112689 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 44259 91459 0 2 0x4000082 syz-fuzzer
92283 429467 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 118845 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 55361 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 423075 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 400066 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 382782 91459 0 3 0x4000082 thrsleep syz-fuzzer
91459 268213 44188 0 3 0x10008a pause ksh
44188 218987 17589 0 3 0x92 select sshd
62304 344226 1 0 3 0x100083 ttyin getty
17589 56949 1 0 3 0x80 select sshd
75350 61944 44791 74 3 0x100092 bpf pflogd
44791 446724 1 0 3 0x80 netio pflogd
55270 434662 60607 73 3 0x100090 kqread syslogd
60607 497704 1 0 3 0x100082 netio syslogd
2635 489867 0 0 3 0x14200 bored smr
69809 34603 0 0 2 0x14200 zerothread
61570 67548 0 0 3 0x14200 aiodoned aiodoned
94459 476555 0 0 3 0x14200 syncer update
59618 140543 0 0 3 0x14200 cleaner cleaner
48772 241183 0 0 3 0x14200 reaper reaper
5118 369602 0 0 3 0x14200 pgdaemon pagedaemon
23923 393768 0 0 3 0x14200 bored crynlk
83910 229387 0 0 3 0x14200 bored crypto
51831 366617 0 0 3 0x40014200 acpi0 acpi0
97429 173321 0 0 3 0x40014200 idle1
18086 338968 0 0 3 0x14200 bored softnet
24954 445726 0 0 3 0x14200 bored systqmp
55038 338055 0 0 3 0x14200 bored systq
61641 401982 0 0 3 0x40014200 bored softclock
18841 496241 0 0 3 0x40014200 idle0
1 232426 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex vmmpepl r = 0 (0xffffffff82632780)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 pool_get+0xbf sys/kern/subr_pool.c:578
#4 uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1747
#5 uvm_map_mkentry+0x75 sys/uvm/uvm_map.c:1652
#6 uvm_mapent_clone+0x9e sys/uvm/uvm_map.c:3740
#7 uvm_mapent_forkcopy+0x6a sys/uvm/uvm_map.c:3841
#8 uvmspace_fork+0x229
#9 process_new+0x16c sys/kern/kern_fork.c:257
#10 fork1+0x31b sys/kern/kern_fork.c:376
#11 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#11 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#12 Xsyscall+0x128
Process 6037 (syz-executor.0) thread 0xffff800020ac3398 (151713)
exclusive rwlock netlock r = 0 (0xffffffff8249c838)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 solock+0x5a sys/kern/uipc_socket2.c:282
#2 sosend+0x559 sys/kern/uipc_socket.c:537
#3 sendit+0x52b sys/kern/uipc_syscalls.c:657
#4 sys_sendto+0x80 sys/kern/uipc_syscalls.c:522
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#6 Xsyscall+0x128
Process 99482 (syz-executor.1) thread 0xffff800020ac3878 (256384)
exclusive rwlock vmmaplk r = 0 (0xfffffd807f000188)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5409
#3 uvmspace_fork+0x112 sys/uvm/uvm_map.c:4034
#4 process_new+0x16c sys/kern/kern_fork.c:257
#5 fork1+0x31b sys/kern/kern_fork.c:376
#6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#7 Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xfffffd807f000d08)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5409
#3 uvmspace_fork+0x37 sys/uvm/uvm_map.c:4025
#4 process_new+0x16c sys/kern/kern_fork.c:257
#5 fork1+0x31b sys/kern/kern_fork.c:376
#6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#7 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82638db0)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline]
#1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570
#2 Xsyscall+0x128
exclusive mutex vmmpepl r = 0 (0xffffffff82632780)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 pool_get+0xbf sys/kern/subr_pool.c:578
#4 uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1747
#5 uvm_map_mkentry+0x75 sys/uvm/uvm_map.c:1652
#6 uvm_mapent_clone+0x9e sys/uvm/uvm_map.c:3740
#7 uvm_mapent_forkcopy+0x6a sys/uvm/uvm_map.c:3841
#8 uvmspace_fork+0x229
#9 process_new+0x16c sys/kern/kern_fork.c:257
#10 fork1+0x31b sys/kern/kern_fork.c:376
#11 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#11 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#12 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9511 6413K 6986K 78643K 11140 0
pcb 14 8K 8K 78643K 69 0
rtable 104 3K 4K 78643K 297 0
ifaddr 74 15K 15K 78643K 142 0
counters 43 33K 34K 78643K 63 0
ioctlops 0 0K 4K 78643K 1492 0
iov 0 0K 12K 78643K 23 0
mount 1 1K 1K 78643K 1 0
vnodes 1221 77K 77K 78643K 1381 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 5 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 109 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 196K 290K 78643K 12766 0
file desc 6 17K 25K 78643K 237 0
sigio 0 0K 0K 78643K 4 0
proc 57 51K 95K 78643K 458 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 52 0
in_multi 61 3K 3K 78643K 104 0
ether_multi 1 0K 0K 78643K 10 0
mrt 0 0K 0K 78643K 5 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 49 228K 228K 78643K 49 0
exec 0 0K 1K 78643K 222 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 115 38K 48K 78643K 1748 0
UVM aobj 17 4K 4K 78643K 24 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 38 0
NDP 11 0K 0K 78643K 26 0
temp 115 3019K 3083K 78643K 5274 0
kqueue 3 4K 8K 78643K 12 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 7 0 0 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 37 0 35 1 0 1 1 0 8 0
rtentry 112 52 0 10 2 0 2 2 0 8 0
unpcb 120 531 0 522 2 0 2 2 0 8 1
syncache 264 8 0 8 2 1 1 1 0 8 1
tcpqe 32 259 0 259 1 1 0 1 0 8 0
tcpcb 544 136 0 132 1 0 1 1 0 8 0
inpcb 280 416 0 405 2 0 2 2 0 8 1
rttmr 72 2 0 2 1 0 1 1 0 8 1
nd6 48 7 0 3 1 0 1 1 0 8 0
pkpcb 40 2 0 2 1 1 0 1 0 8 0
ppxss 1128 1 0 1 1 1 0 1 0 8 0
pffrag 232 7 0 7 1 0 1 1 0 482 1
pffrnode 88 7 0 7 1 0 1 1 0 8 1
pffrent 40 315 0 315 1 0 1 1 0 8 1
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 38 0 3 1 0 1 1 0 8 0
pfstkey 112 38 0 3 1 0 1 1 0 8 0
pfstate 328 38 0 3 3 0 3 3 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 213 0 40 13 0 13 13 0 8 0
art_table 32 214 0 40 2 0 2 2 0 8 0
art_node 16 51 0 12 1 0 1 1 0 8 0
sysvmsgpl 40 34 0 11 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 106 0 96 1 0 1 1 0 8 0
shmpl 112 22 0 7 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1759 0 355 46 0 46 46 0 8 0
ffsino 272 1759 0 355 94 0 94 94 0 8 0
nchpl 144 2361 0 744 61 0 61 61 0 8 0
uvmvnodes 72 1918 0 0 35 0 35 35 0 8 0
vnodes 208 1918 0 0 101 0 101 101 0 8 0
namei 1024 6457 0 6457 1 0 1 1 0 8 1
percpumem 16 42 0 10 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 6 0 4 1 0 1 1 0 8 0
scxspl 192 6897 0 6897 8 5 3 7 0 8 3
plimitpl 152 32 0 25 1 0 1 1 0 8 0
sigapl 424 453 0 422 4 0 4 4 0 8 0
futexpl 56 5053 0 5053 1 0 1 1 0 8 1
knotepl 112 62 0 43 1 0 1 1 0 8 0
kqueuepl 144 32 0 30 1 0 1 1 0 8 0
pipelkpl 48 119 0 109 1 0 1 1 0 8 0
pipepl 120 238 0 219 1 0 1 1 0 8 0
fdescpl 496 437 0 422 3 0 3 3 0 8 0
filepl 152 3222 0 3125 8 1 7 7 0 8 2
lockfpl 104 103 0 103 1 0 1 1 0 8 1
lockfspl 48 31 0 31 1 0 1 1 0 8 1
sessionpl 112 18 0 9 1 0 1 1 0 8 0
pgrppl 48 20 0 11 1 0 1 1 0 8 0
ucredpl 96 301 0 293 1 0 1 1 0 8 0
zombiepl 144 422 0 422 1 0 1 1 0 8 1
processpl 960 453 0 422 5 0 5 5 0 8 0
procpl 624 966 0 924 5 0 5 5 0 8 1
sosppl 128 2 0 2 1 1 0 1 0 8 0
sockpl 400 998 0 978 8 0 8 8 0 8 5
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 8 0 0 1 0 1 1 0 8 0
mcl4k 4096 7 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 165 0 0 20 0 20 20 0 8 0
mtagpl 80 31 0 0 1 0 1 1 0 8 0
mbufpl 256 363 0 0 23 0 23 23 0 8 0
bufpl 280 4550 0 174 313 0 313 313 0 8 0
anonpl 16 55725 0 38357 78 1 77 77 0 124 6
amapchunkpl 152 2441 0 2303 10 0 10 10 0 158 2
amappl16 192 1994 0 1038 49 0 49 49 0 8 0
amappl15 184 1 0 1 1 0 1 1 0 8 1
amappl14 176 6 0 4 2 1 1 1 0 8 0
amappl13 168 25 0 24 1 0 1 1 0 8 0
amappl12 160 115 0 110 1 0 1 1 0 8 0
amappl11 152 189 0 174 2 1 1 2 0 8 0
amappl10 144 18 0 15 1 0 1 1 0 8 0
amappl9 136 389 0 386 1 0 1 1 0 8 0
amappl8 128 338 0 307 2 0 2 2 0 8 0
amappl7 120 119 0 108 1 0 1 1 0 8 0
amappl6 112 129 0 126 1 0 1 1 0 8 0
amappl5 104 427 0 413 1 0 1 1 0 8 0
amappl4 96 510 0 481 1 0 1 1 0 8 0
amappl3 88 123 0 117 1 0 1 1 0 8 0
amappl2 80 2577 0 2514 3 1 2 3 0 8 0
amappl1 72 19546 0 19134 26 16 10 20 0 8 0
amappl 80 1227 0 1182 2 0 2 2 0 84 0
dma4096 4096 1 0 1 1 1 0 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 64 23 0 7 1 0 1 1 0 8 0
uaddrrnd 24 443 0 426 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 443 0 426 1 0 1 1 0 8 0
vmmpekpl 168 7481 0 7445 2 0 2 2 0 8 0
vmmpepl 168 60641 0 58529 122 12 110 116 0 357 18
vmsppl 368 442 0 426 2 0 2 2 0 8 0
pdppl 4096 893 0 854 6 0 6 6 0 8 0
pvpl 32 181122 0 160686 184 0 184 184 0 265 17
pmappl 232 442 0 426 2 0 2 2 0 8 0
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 185 0 3 6 0 6 6 0 8 0
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: 23a32f86 Allow armv7 efiboot(8) to read from an ffs2 files..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=177c52c3e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=e6f88471e7b80f69b308
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+e6f884...@syzkaller.appspotmail.com
panic:W ApRooNIl_NGc:a cShPeL_ iNtOemT _LmOagWEiRcE_Dc hOecN kS:Y SmCbAuLfL pl2 7c9p2u9 4f42re42e EliXIsTt 0m oad
i
fiStopped at savectx+0xb1: movl $0,%gs:0x530
TID PID UID PRFLAGS PFLAGS CPU COMMAND
151713 6037 0 0 0x4000000 0 syz-executor.0
*256384 99482 0 0x2 0 1 syz-executor.1
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7fffff1990, count: 14
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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806611a200+16 0x0!=0xb9e1cf0ffd76dc5
ddb{1}> trace
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7fffff1990, count: -1
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff800020ba9690
rbx 0
rdx 0xffff800020ac3878
rcx 0
rax 0x39
r8 0xffffffff8164a22f kprintf+0x16f
r9 0x1
r10 0x25
r11 0xd4ab9f22dcbdca8
r12 0
r13 0
r14 0xffff800020ac3878
r15 0
rip 0xffffffff81fd73f1 savectx+0xb1
cs 0x8
rflags 0x46
rsp 0xffff800020ba9610
ss 0x10
savectx+0xb1: movl $0,%gs:0x530
ddb{1}> show proc
PROC (syz-executor.1) pid=256384 stat=onproc
flags process=2<EXEC> proc=0
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020a7dad8,0xffff800020ac3138
process=0xffff800020a90010 user=0xffff800020ba4000, vmspace=0xfffffd807f000cf0
estcpu=36, cpticks=6, pctcpu=0.7
user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
2407 306959 99482 0 2 0 syz-executor.1
6037 323306 455 0 2 0 syz-executor.0
6037 151713 455 0 7 0x4000000 syz-executor.0
65568 489628 0 0 3 0x14200 bored sosplice
*99482 256384 92283 0 7 0x2 syz-executor.1
455 23701 92283 0 3 0x82 nanosleep syz-executor.0
92283 160964 91459 0 3 0x82 thrsleep syz-fuzzer
92283 99255 91459 0 3 0x4000082 nanosleep syz-fuzzer
92283 227542 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 112689 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 44259 91459 0 2 0x4000082 syz-fuzzer
92283 429467 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 118845 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 55361 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 423075 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 400066 91459 0 3 0x4000082 thrsleep syz-fuzzer
92283 382782 91459 0 3 0x4000082 thrsleep syz-fuzzer
91459 268213 44188 0 3 0x10008a pause ksh
44188 218987 17589 0 3 0x92 select sshd
62304 344226 1 0 3 0x100083 ttyin getty
17589 56949 1 0 3 0x80 select sshd
75350 61944 44791 74 3 0x100092 bpf pflogd
44791 446724 1 0 3 0x80 netio pflogd
55270 434662 60607 73 3 0x100090 kqread syslogd
60607 497704 1 0 3 0x100082 netio syslogd
2635 489867 0 0 3 0x14200 bored smr
69809 34603 0 0 2 0x14200 zerothread
61570 67548 0 0 3 0x14200 aiodoned aiodoned
94459 476555 0 0 3 0x14200 syncer update
59618 140543 0 0 3 0x14200 cleaner cleaner
48772 241183 0 0 3 0x14200 reaper reaper
5118 369602 0 0 3 0x14200 pgdaemon pagedaemon
23923 393768 0 0 3 0x14200 bored crynlk
83910 229387 0 0 3 0x14200 bored crypto
51831 366617 0 0 3 0x40014200 acpi0 acpi0
97429 173321 0 0 3 0x40014200 idle1
18086 338968 0 0 3 0x14200 bored softnet
24954 445726 0 0 3 0x14200 bored systqmp
55038 338055 0 0 3 0x14200 bored systq
61641 401982 0 0 3 0x40014200 bored softclock
18841 496241 0 0 3 0x40014200 idle0
1 232426 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex vmmpepl r = 0 (0xffffffff82632780)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 pool_get+0xbf sys/kern/subr_pool.c:578
#4 uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1747
#5 uvm_map_mkentry+0x75 sys/uvm/uvm_map.c:1652
#6 uvm_mapent_clone+0x9e sys/uvm/uvm_map.c:3740
#7 uvm_mapent_forkcopy+0x6a sys/uvm/uvm_map.c:3841
#8 uvmspace_fork+0x229
#9 process_new+0x16c sys/kern/kern_fork.c:257
#10 fork1+0x31b sys/kern/kern_fork.c:376
#11 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#11 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#12 Xsyscall+0x128
Process 6037 (syz-executor.0) thread 0xffff800020ac3398 (151713)
exclusive rwlock netlock r = 0 (0xffffffff8249c838)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 solock+0x5a sys/kern/uipc_socket2.c:282
#2 sosend+0x559 sys/kern/uipc_socket.c:537
#3 sendit+0x52b sys/kern/uipc_syscalls.c:657
#4 sys_sendto+0x80 sys/kern/uipc_syscalls.c:522
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#6 Xsyscall+0x128
Process 99482 (syz-executor.1) thread 0xffff800020ac3878 (256384)
exclusive rwlock vmmaplk r = 0 (0xfffffd807f000188)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5409
#3 uvmspace_fork+0x112 sys/uvm/uvm_map.c:4034
#4 process_new+0x16c sys/kern/kern_fork.c:257
#5 fork1+0x31b sys/kern/kern_fork.c:376
#6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#7 Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xfffffd807f000d08)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5409
#3 uvmspace_fork+0x37 sys/uvm/uvm_map.c:4025
#4 process_new+0x16c sys/kern/kern_fork.c:257
#5 fork1+0x31b sys/kern/kern_fork.c:376
#6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#7 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82638db0)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline]
#1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570
#2 Xsyscall+0x128
exclusive mutex vmmpepl r = 0 (0xffffffff82632780)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 pool_get+0xbf sys/kern/subr_pool.c:578
#4 uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1747
#5 uvm_map_mkentry+0x75 sys/uvm/uvm_map.c:1652
#6 uvm_mapent_clone+0x9e sys/uvm/uvm_map.c:3740
#7 uvm_mapent_forkcopy+0x6a sys/uvm/uvm_map.c:3841
#8 uvmspace_fork+0x229
#9 process_new+0x16c sys/kern/kern_fork.c:257
#10 fork1+0x31b sys/kern/kern_fork.c:376
#11 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#11 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#12 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9511 6413K 6986K 78643K 11140 0
pcb 14 8K 8K 78643K 69 0
rtable 104 3K 4K 78643K 297 0
ifaddr 74 15K 15K 78643K 142 0
counters 43 33K 34K 78643K 63 0
ioctlops 0 0K 4K 78643K 1492 0
iov 0 0K 12K 78643K 23 0
mount 1 1K 1K 78643K 1 0
vnodes 1221 77K 77K 78643K 1381 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 5 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 109 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 196K 290K 78643K 12766 0
file desc 6 17K 25K 78643K 237 0
sigio 0 0K 0K 78643K 4 0
proc 57 51K 95K 78643K 458 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 52 0
in_multi 61 3K 3K 78643K 104 0
ether_multi 1 0K 0K 78643K 10 0
mrt 0 0K 0K 78643K 5 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 49 228K 228K 78643K 49 0
exec 0 0K 1K 78643K 222 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 115 38K 48K 78643K 1748 0
UVM aobj 17 4K 4K 78643K 24 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 38 0
NDP 11 0K 0K 78643K 26 0
temp 115 3019K 3083K 78643K 5274 0
kqueue 3 4K 8K 78643K 12 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 7 0 0 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 37 0 35 1 0 1 1 0 8 0
rtentry 112 52 0 10 2 0 2 2 0 8 0
unpcb 120 531 0 522 2 0 2 2 0 8 1
syncache 264 8 0 8 2 1 1 1 0 8 1
tcpqe 32 259 0 259 1 1 0 1 0 8 0
tcpcb 544 136 0 132 1 0 1 1 0 8 0
inpcb 280 416 0 405 2 0 2 2 0 8 1
rttmr 72 2 0 2 1 0 1 1 0 8 1
nd6 48 7 0 3 1 0 1 1 0 8 0
pkpcb 40 2 0 2 1 1 0 1 0 8 0
ppxss 1128 1 0 1 1 1 0 1 0 8 0
pffrag 232 7 0 7 1 0 1 1 0 482 1
pffrnode 88 7 0 7 1 0 1 1 0 8 1
pffrent 40 315 0 315 1 0 1 1 0 8 1
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 38 0 3 1 0 1 1 0 8 0
pfstkey 112 38 0 3 1 0 1 1 0 8 0
pfstate 328 38 0 3 3 0 3 3 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 213 0 40 13 0 13 13 0 8 0
art_table 32 214 0 40 2 0 2 2 0 8 0
art_node 16 51 0 12 1 0 1 1 0 8 0
sysvmsgpl 40 34 0 11 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 106 0 96 1 0 1 1 0 8 0
shmpl 112 22 0 7 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1759 0 355 46 0 46 46 0 8 0
ffsino 272 1759 0 355 94 0 94 94 0 8 0
nchpl 144 2361 0 744 61 0 61 61 0 8 0
uvmvnodes 72 1918 0 0 35 0 35 35 0 8 0
vnodes 208 1918 0 0 101 0 101 101 0 8 0
namei 1024 6457 0 6457 1 0 1 1 0 8 1
percpumem 16 42 0 10 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 6 0 4 1 0 1 1 0 8 0
scxspl 192 6897 0 6897 8 5 3 7 0 8 3
plimitpl 152 32 0 25 1 0 1 1 0 8 0
sigapl 424 453 0 422 4 0 4 4 0 8 0
futexpl 56 5053 0 5053 1 0 1 1 0 8 1
knotepl 112 62 0 43 1 0 1 1 0 8 0
kqueuepl 144 32 0 30 1 0 1 1 0 8 0
pipelkpl 48 119 0 109 1 0 1 1 0 8 0
pipepl 120 238 0 219 1 0 1 1 0 8 0
fdescpl 496 437 0 422 3 0 3 3 0 8 0
filepl 152 3222 0 3125 8 1 7 7 0 8 2
lockfpl 104 103 0 103 1 0 1 1 0 8 1
lockfspl 48 31 0 31 1 0 1 1 0 8 1
sessionpl 112 18 0 9 1 0 1 1 0 8 0
pgrppl 48 20 0 11 1 0 1 1 0 8 0
ucredpl 96 301 0 293 1 0 1 1 0 8 0
zombiepl 144 422 0 422 1 0 1 1 0 8 1
processpl 960 453 0 422 5 0 5 5 0 8 0
procpl 624 966 0 924 5 0 5 5 0 8 1
sosppl 128 2 0 2 1 1 0 1 0 8 0
sockpl 400 998 0 978 8 0 8 8 0 8 5
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 8 0 0 1 0 1 1 0 8 0
mcl4k 4096 7 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 165 0 0 20 0 20 20 0 8 0
mtagpl 80 31 0 0 1 0 1 1 0 8 0
mbufpl 256 363 0 0 23 0 23 23 0 8 0
bufpl 280 4550 0 174 313 0 313 313 0 8 0
anonpl 16 55725 0 38357 78 1 77 77 0 124 6
amapchunkpl 152 2441 0 2303 10 0 10 10 0 158 2
amappl16 192 1994 0 1038 49 0 49 49 0 8 0
amappl15 184 1 0 1 1 0 1 1 0 8 1
amappl14 176 6 0 4 2 1 1 1 0 8 0
amappl13 168 25 0 24 1 0 1 1 0 8 0
amappl12 160 115 0 110 1 0 1 1 0 8 0
amappl11 152 189 0 174 2 1 1 2 0 8 0
amappl10 144 18 0 15 1 0 1 1 0 8 0
amappl9 136 389 0 386 1 0 1 1 0 8 0
amappl8 128 338 0 307 2 0 2 2 0 8 0
amappl7 120 119 0 108 1 0 1 1 0 8 0
amappl6 112 129 0 126 1 0 1 1 0 8 0
amappl5 104 427 0 413 1 0 1 1 0 8 0
amappl4 96 510 0 481 1 0 1 1 0 8 0
amappl3 88 123 0 117 1 0 1 1 0 8 0
amappl2 80 2577 0 2514 3 1 2 3 0 8 0
amappl1 72 19546 0 19134 26 16 10 20 0 8 0
amappl 80 1227 0 1182 2 0 2 2 0 84 0
dma4096 4096 1 0 1 1 1 0 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 64 23 0 7 1 0 1 1 0 8 0
uaddrrnd 24 443 0 426 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 443 0 426 1 0 1 1 0 8 0
vmmpekpl 168 7481 0 7445 2 0 2 2 0 8 0
vmmpepl 168 60641 0 58529 122 12 110 116 0 357 18
vmsppl 368 442 0 426 2 0 2 2 0 8 0
pdppl 4096 893 0 854 6 0 6 6 0 8 0
pvpl 32 181122 0 160686 184 0 184 184 0 265 17
pmappl 232 442 0 426 2 0 2 2 0 8 0
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 185 0 3 6 0 6 6 0 8 0
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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syzbot will keep track of this bug report. See:
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Anton Lindqvist
Mar 2, 2020, 3:24:17 AM3/2/20
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: pool: cpu free list modified: mbufpl
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