panic: poolWA_RcNacINhGe_: itSPemL_ NmOaTg iLc_OWcEhReEcDk : ONm buSYfSpClA LcL pu10 fr-2ee4 60li00st EmXoIdTi f0ie 9d
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syzbot
Mar 10, 2020, 10:22:15 AM3/10/20
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: be43c06a sync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17fec945e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=efa7381761e9c02efe19
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+efa738...@syzkaller.appspotmail.com
login: panic: poolWA_RcNacINhGe_: itSPemL_ NmOaTg iLc_OWcEhReEcDk : ONm buSYfSpClA LcL pu10 fr-2ee4 60li00st EmXoIdTi f0ie 9d
:
Stopped at savectx+0xb1: movl $0,%gs:0x530
TID PID UID PRFLAGS PFLAGS CPU COMMAND
313248 75914 0 0 0x4000000 1 syz-executor.1
* 11365 26381 0 0x2 0 0 syz-executor.0
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffc43c0, 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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806f2ada00+16 0x0!=0xd3dee1ff8ffdbd0e
ddb{0}> trace
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffc43c0, count: -1
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff800020b6bdc0
rbx 0
rdx 0xffff800020a6c278
rcx 0
rax 0x38
r8 0xffffffff8113457f kprintf+0x16f
r9 0x1
r10 0x25
r11 0x22534d7085712554
r12 0
r13 0
r14 0xffff800020a6c278
r15 0
rip 0xffffffff8114c3f1 savectx+0xb1
cs 0x8
rflags 0x46
rsp 0xffff800020b6bd40
ss 0x10
savectx+0xb1: movl $0,%gs:0x530
ddb{0}> show proc
PROC (syz-executor.0) pid=11365 stat=onproc
flags process=2<EXEC> proc=0
pri=32, usrpri=63, nice=20
forw=0xffffffffffffffff, list=0xffff800020a6c008,0xffff800020ac7d68
process=0xffff800020a812d0 user=0xffff800020b66000, vmspace=0xfffffd807efff8a0
estcpu=36, cpticks=1, pctcpu=0.11
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
75914 239533 96640 0 2 0 syz-executor.1
75914 313248 96640 0 7 0x4000000 syz-executor.1
97359 455774 0 0 3 0x14200 bored sosplice
96640 478654 41498 0 3 0x82 nanosleep syz-executor.1
*26381 11365 41498 0 7 0x2 syz-executor.0
41498 357742 19787 0 3 0x82 thrsleep syz-fuzzer
41498 220833 19787 0 3 0x4000082 nanosleep syz-fuzzer
41498 265850 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 419000 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 269078 19787 0 3 0x4000082 nanosleep syz-fuzzer
41498 111248 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 201505 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 418360 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 227546 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 515509 19787 0 2 0x4000082 syz-fuzzer
19787 133558 34993 0 3 0x10008a pause ksh
34993 365321 61928 0 3 0x92 select sshd
80035 383886 1 0 3 0x100083 ttyin getty
61928 522494 1 0 3 0x80 select sshd
4093 435170 92849 74 3 0x100092 bpf pflogd
92849 284422 1 0 3 0x80 netio pflogd
50529 489415 1653 73 3 0x100090 kqread syslogd
1653 26511 1 0 3 0x100082 netio syslogd
91131 95230 1 77 3 0x100090 poll dhclient
56531 75902 1 0 3 0x80 poll dhclient
97815 327862 0 0 3 0x14200 bored smr
91337 333798 0 0 2 0x14200 zerothread
93 114900 0 0 3 0x14200 aiodoned aiodoned
67695 166621 0 0 3 0x14200 syncer update
42361 8268 0 0 3 0x14200 cleaner cleaner
50453 264856 0 0 3 0x14200 reaper reaper
16783 19745 0 0 3 0x14200 pgdaemon pagedaemon
79196 235130 0 0 3 0x14200 bored crynlk
21229 135883 0 0 3 0x14200 bored crypto
57947 152453 0 0 3 0x40014200 acpi0 acpi0
60719 478022 0 0 3 0x40014200 idle1
531 259164 0 0 2 0x14200 softnet
74900 110875 0 0 3 0x14200 bored systqmp
67128 502024 0 0 3 0x14200 bored systq
31747 249899 0 0 3 0x40014200 bored softclock
12942 291195 0 0 3 0x40014200 idle0
1 82705 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex &bq->bufq_mtx r = 0 (0xffff80000017ad68)
#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 bufq_queue+0x28 sys/kern/kern_bufq.c:182
#4 sdstrategy+0x178 sys/scsi/sd.c:585
#5 spec_strategy+0x74 sys/kern/spec_vnops.c:468
#6 ufs_strategy+0x17c
#7 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:711
#8 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#9 ufs_dirremove+0x291
#10 ufs_remove+0x154 sys/ufs/ufs/ufs_vnops.c:611
#11 VOP_REMOVE+0x11f sys/kern/vfs_vops.c:378
#12 dounlinkat+0x195 sys/kern/vfs_syscalls.c:1896
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
Process 75914 (syz-executor.1) thread 0xffff800020ac6c48 (313248)
exclusive rwlock netlock r = 0 (0xffffffff82531638)
#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 26381 (syz-executor.0) thread 0xffff800020a6c278 (11365)
exclusive rrwlock inode r = 0 (0xfffffd80638541b0)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vget+0x1c8 sys/kern/vfs_subr.c:671
#6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329
#8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90
#10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568
#11 namei+0x63c sys/kern/vfs_lookup.c:249
#12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1860
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8063854f80)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vget+0x1c8 sys/kern/vfs_subr.c:671
#6 cache_lookup+0x2bb sys/kern/vfs_cache.c:224
#7 ufs_lookup+0x1bc sys/ufs/ufs/ufs_lookup.c:162
#8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90
#9 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568
#10 namei+0x63c sys/kern/vfs_lookup.c:249
#11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1860
#12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#13 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82685300)
#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 &bq->bufq_mtx r = 0 (0xffff80000017ad68)
#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 bufq_queue+0x28 sys/kern/kern_bufq.c:182
#4 sdstrategy+0x178 sys/scsi/sd.c:585
#5 spec_strategy+0x74 sys/kern/spec_vnops.c:468
#6 ufs_strategy+0x17c
#7 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:711
#8 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#9 ufs_dirremove+0x291
#10 ufs_remove+0x154 sys/ufs/ufs/ufs_vnops.c:611
#11 VOP_REMOVE+0x11f sys/kern/vfs_vops.c:378
#12 dounlinkat+0x195 sys/kern/vfs_syscalls.c:1896
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9485 6402K 6601K 78643K 10701 0
pcb 13 8K 8K 78643K 41 0
rtable 105 3K 3K 78643K 208 0
ifaddr 49 11K 11K 78643K 60 0
counters 43 33K 34K 78643K 45 0
ioctlops 0 0K 4K 78643K 1473 0
iov 0 0K 12K 78643K 57 0
mount 1 1K 1K 78643K 1 0
vnodes 1221 77K 77K 78643K 1263 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 3 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 34 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 196K 290K 78643K 12766 0
file desc 5 13K 25K 78643K 96 0
sigio 0 0K 0K 78643K 4 0
proc 60 63K 95K 78643K 444 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 14 0
in_multi 33 2K 2K 78643K 43 0
ether_multi 1 0K 0K 78643K 3 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 61 281K 281K 78643K 61 0
exec 0 0K 1K 78643K 211 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 110 38K 47K 78643K 1242 0
UVM aobj 20 2K 2K 78643K 20 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 10 0
NDP 7 0K 0K 78643K 12 0
temp 81 3018K 3097K 78643K 2607 0
kqueue 3 4K 4K 78643K 3 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
arp 64 6 0 0 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 21 0 19 1 0 1 1 0 8 0
rtentry 112 45 0 1 2 0 2 2 0 8 0
unpcb 120 152 0 140 1 0 1 1 0 8 0
syncache 264 6 0 6 2 1 1 1 0 8 1
tcpqe 32 603 0 603 1 0 1 1 0 8 1
tcpcb 544 40 0 36 1 0 1 1 0 8 0
inpcb 280 140 0 132 1 0 1 1 0 8 0
nd6 48 6 0 0 1 0 1 1 0 8 0
pffrag 232 3 0 2 1 0 1 1 0 482 0
pffrnode 88 3 0 2 1 0 1 1 0 8 0
pffrent 40 68 0 47 1 0 1 1 0 8 0
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 22 0 1 1 0 1 1 0 8 0
pfstkey 112 22 0 1 1 0 1 1 0 8 0
pfstate 328 22 0 0 2 0 2 2 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 256 188 0 0 12 0 12 12 0 8 0
art_table 32 189 0 0 2 0 2 2 0 8 0
art_node 16 44 0 4 1 0 1 1 0 8 0
sysvmsgpl 40 22 0 12 1 0 1 1 0 8 0
semupl 112 9 0 9 1 0 1 1 0 8 1
semapl 112 28 0 18 1 0 1 1 0 8 0
shmpl 112 18 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1516 0 106 46 0 46 46 0 8 0
ffsino 272 1516 0 106 95 0 95 95 0 8 0
nchpl 144 1877 0 258 61 0 61 61 0 8 0
uvmvnodes 72 1590 0 0 29 0 29 29 0 8 0
vnodes 208 1590 0 0 84 0 84 84 0 8 0
namei 1024 4936 0 4936 1 0 1 1 0 8 1
percpumem 16 33 0 1 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 2 0 0 1 0 1 1 0 8 0
scxspl 192 5900 0 5900 8 1 7 7 0 8 7
plimitpl 152 25 0 17 1 0 1 1 0 8 0
sigapl 424 312 0 280 4 0 4 4 0 8 0
futexpl 56 1662 0 1662 1 0 1 1 0 8 1
knotepl 112 53 0 34 1 0 1 1 0 8 0
kqueuepl 144 9 0 7 1 0 1 1 0 8 0
pipelkpl 48 93 0 83 1 0 1 1 0 8 0
pipepl 120 186 0 167 1 0 1 1 0 8 0
fdescpl 496 296 0 280 3 0 3 3 0 8 0
filepl 152 1813 0 1710 6 0 6 6 0 8 2
lockfpl 104 52 0 51 1 0 1 1 0 8 0
lockfspl 48 14 0 13 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 18 0 7 1 0 1 1 0 8 0
ucredpl 96 163 0 154 1 0 1 1 0 8 0
zombiepl 144 280 0 280 1 0 1 1 0 8 1
processpl 960 312 0 280 5 0 5 5 0 8 0
procpl 624 476 0 434 4 0 4 4 0 8 0
sosppl 128 3 0 3 1 0 1 1 0 8 1
sockpl 400 313 0 291 4 0 4 4 0 8 1
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 3 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 199 0 0 24 0 24 24 0 8 0
mtagpl 80 7 0 0 1 0 1 1 0 8 0
mbufpl 256 265 0 0 17 0 17 17 0 8 0
bufpl 280 4515 0 174 311 0 311 311 0 8 0
anonpl 16 46252 0 29847 76 1 75 75 0 124 7
amapchunkpl 152 1583 0 1444 11 0 11 11 0 158 4
amappl16 192 1355 0 462 46 0 46 46 0 8 1
amappl15 184 1 0 1 1 1 0 1 0 8 0
amappl14 176 69 0 65 2 1 1 1 0 8 0
amappl13 168 26 0 24 1 0 1 1 0 8 0
amappl12 160 9 0 8 2 1 1 1 0 8 0
amappl11 152 72 0 54 1 0 1 1 0 8 0
amappl10 144 23 0 18 1 0 1 1 0 8 0
amappl9 136 390 0 386 1 0 1 1 0 8 0
amappl8 128 322 0 296 1 0 1 1 0 8 0
amappl7 120 120 0 109 1 0 1 1 0 8 0
amappl6 112 27 0 22 1 0 1 1 0 8 0
amappl5 104 202 0 186 1 0 1 1 0 8 0
amappl4 96 501 0 469 2 1 1 2 0 8 0
amappl3 88 109 0 104 1 0 1 1 0 8 0
amappl2 80 1448 0 1379 3 1 2 3 0 8 0
amappl1 72 16531 0 16082 26 14 12 20 0 8 2
amappl 80 730 0 684 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 19 0 0 1 0 1 1 0 8 0
uaddrrnd 24 298 0 280 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 298 0 280 1 0 1 1 0 8 0
vmmpekpl 168 6310 0 6280 2 0 2 2 0 8 0
vmmpepl 168 43447 0 41408 123 7 116 116 0 357 26
vmsppl 368 297 0 280 2 0 2 2 0 8 0
pdppl 4096 604 0 562 6 0 6 6 0 8 0
pvpl 32 153434 0 133921 180 0 180 180 0 265 18
pmappl 232 297 0 280 2 0 2 2 0 8 0
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 178 0 3 5 0 5 5 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: be43c06a sync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17fec945e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=efa7381761e9c02efe19
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+efa738...@syzkaller.appspotmail.com
login: panic: poolWA_RcNacINhGe_: itSPemL_ NmOaTg iLc_OWcEhReEcDk : ONm buSYfSpClA LcL pu10 fr-2ee4 60li00st EmXoIdTi f0ie 9d
:
Stopped at savectx+0xb1: movl $0,%gs:0x530
TID PID UID PRFLAGS PFLAGS CPU COMMAND
313248 75914 0 0 0x4000000 1 syz-executor.1
* 11365 26381 0 0x2 0 0 syz-executor.0
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffc43c0, 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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806f2ada00+16 0x0!=0xd3dee1ff8ffdbd0e
ddb{0}> trace
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffc43c0, count: -1
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff800020b6bdc0
rbx 0
rdx 0xffff800020a6c278
rcx 0
rax 0x38
r8 0xffffffff8113457f kprintf+0x16f
r9 0x1
r10 0x25
r11 0x22534d7085712554
r12 0
r13 0
r14 0xffff800020a6c278
r15 0
rip 0xffffffff8114c3f1 savectx+0xb1
cs 0x8
rflags 0x46
rsp 0xffff800020b6bd40
ss 0x10
savectx+0xb1: movl $0,%gs:0x530
ddb{0}> show proc
PROC (syz-executor.0) pid=11365 stat=onproc
flags process=2<EXEC> proc=0
pri=32, usrpri=63, nice=20
forw=0xffffffffffffffff, list=0xffff800020a6c008,0xffff800020ac7d68
process=0xffff800020a812d0 user=0xffff800020b66000, vmspace=0xfffffd807efff8a0
estcpu=36, cpticks=1, pctcpu=0.11
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
75914 239533 96640 0 2 0 syz-executor.1
75914 313248 96640 0 7 0x4000000 syz-executor.1
97359 455774 0 0 3 0x14200 bored sosplice
96640 478654 41498 0 3 0x82 nanosleep syz-executor.1
*26381 11365 41498 0 7 0x2 syz-executor.0
41498 357742 19787 0 3 0x82 thrsleep syz-fuzzer
41498 220833 19787 0 3 0x4000082 nanosleep syz-fuzzer
41498 265850 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 419000 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 269078 19787 0 3 0x4000082 nanosleep syz-fuzzer
41498 111248 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 201505 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 418360 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 227546 19787 0 3 0x4000082 thrsleep syz-fuzzer
41498 515509 19787 0 2 0x4000082 syz-fuzzer
19787 133558 34993 0 3 0x10008a pause ksh
34993 365321 61928 0 3 0x92 select sshd
80035 383886 1 0 3 0x100083 ttyin getty
61928 522494 1 0 3 0x80 select sshd
4093 435170 92849 74 3 0x100092 bpf pflogd
92849 284422 1 0 3 0x80 netio pflogd
50529 489415 1653 73 3 0x100090 kqread syslogd
1653 26511 1 0 3 0x100082 netio syslogd
91131 95230 1 77 3 0x100090 poll dhclient
56531 75902 1 0 3 0x80 poll dhclient
97815 327862 0 0 3 0x14200 bored smr
91337 333798 0 0 2 0x14200 zerothread
93 114900 0 0 3 0x14200 aiodoned aiodoned
67695 166621 0 0 3 0x14200 syncer update
42361 8268 0 0 3 0x14200 cleaner cleaner
50453 264856 0 0 3 0x14200 reaper reaper
16783 19745 0 0 3 0x14200 pgdaemon pagedaemon
79196 235130 0 0 3 0x14200 bored crynlk
21229 135883 0 0 3 0x14200 bored crypto
57947 152453 0 0 3 0x40014200 acpi0 acpi0
60719 478022 0 0 3 0x40014200 idle1
531 259164 0 0 2 0x14200 softnet
74900 110875 0 0 3 0x14200 bored systqmp
67128 502024 0 0 3 0x14200 bored systq
31747 249899 0 0 3 0x40014200 bored softclock
12942 291195 0 0 3 0x40014200 idle0
1 82705 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex &bq->bufq_mtx r = 0 (0xffff80000017ad68)
#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 bufq_queue+0x28 sys/kern/kern_bufq.c:182
#4 sdstrategy+0x178 sys/scsi/sd.c:585
#5 spec_strategy+0x74 sys/kern/spec_vnops.c:468
#6 ufs_strategy+0x17c
#7 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:711
#8 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#9 ufs_dirremove+0x291
#10 ufs_remove+0x154 sys/ufs/ufs/ufs_vnops.c:611
#11 VOP_REMOVE+0x11f sys/kern/vfs_vops.c:378
#12 dounlinkat+0x195 sys/kern/vfs_syscalls.c:1896
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
Process 75914 (syz-executor.1) thread 0xffff800020ac6c48 (313248)
exclusive rwlock netlock r = 0 (0xffffffff82531638)
#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 26381 (syz-executor.0) thread 0xffff800020a6c278 (11365)
exclusive rrwlock inode r = 0 (0xfffffd80638541b0)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vget+0x1c8 sys/kern/vfs_subr.c:671
#6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329
#8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90
#10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568
#11 namei+0x63c sys/kern/vfs_lookup.c:249
#12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1860
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8063854f80)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vget+0x1c8 sys/kern/vfs_subr.c:671
#6 cache_lookup+0x2bb sys/kern/vfs_cache.c:224
#7 ufs_lookup+0x1bc sys/ufs/ufs/ufs_lookup.c:162
#8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90
#9 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568
#10 namei+0x63c sys/kern/vfs_lookup.c:249
#11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1860
#12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#13 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82685300)
#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 &bq->bufq_mtx r = 0 (0xffff80000017ad68)
#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 bufq_queue+0x28 sys/kern/kern_bufq.c:182
#4 sdstrategy+0x178 sys/scsi/sd.c:585
#5 spec_strategy+0x74 sys/kern/spec_vnops.c:468
#6 ufs_strategy+0x17c
#7 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:711
#8 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#9 ufs_dirremove+0x291
#10 ufs_remove+0x154 sys/ufs/ufs/ufs_vnops.c:611
#11 VOP_REMOVE+0x11f sys/kern/vfs_vops.c:378
#12 dounlinkat+0x195 sys/kern/vfs_syscalls.c:1896
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9485 6402K 6601K 78643K 10701 0
pcb 13 8K 8K 78643K 41 0
rtable 105 3K 3K 78643K 208 0
ifaddr 49 11K 11K 78643K 60 0
counters 43 33K 34K 78643K 45 0
ioctlops 0 0K 4K 78643K 1473 0
iov 0 0K 12K 78643K 57 0
mount 1 1K 1K 78643K 1 0
vnodes 1221 77K 77K 78643K 1263 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 3 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 34 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 196K 290K 78643K 12766 0
file desc 5 13K 25K 78643K 96 0
sigio 0 0K 0K 78643K 4 0
proc 60 63K 95K 78643K 444 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 14 0
in_multi 33 2K 2K 78643K 43 0
ether_multi 1 0K 0K 78643K 3 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 61 281K 281K 78643K 61 0
exec 0 0K 1K 78643K 211 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 110 38K 47K 78643K 1242 0
UVM aobj 20 2K 2K 78643K 20 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 10 0
NDP 7 0K 0K 78643K 12 0
temp 81 3018K 3097K 78643K 2607 0
kqueue 3 4K 4K 78643K 3 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
arp 64 6 0 0 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 21 0 19 1 0 1 1 0 8 0
rtentry 112 45 0 1 2 0 2 2 0 8 0
unpcb 120 152 0 140 1 0 1 1 0 8 0
syncache 264 6 0 6 2 1 1 1 0 8 1
tcpqe 32 603 0 603 1 0 1 1 0 8 1
tcpcb 544 40 0 36 1 0 1 1 0 8 0
inpcb 280 140 0 132 1 0 1 1 0 8 0
nd6 48 6 0 0 1 0 1 1 0 8 0
pffrag 232 3 0 2 1 0 1 1 0 482 0
pffrnode 88 3 0 2 1 0 1 1 0 8 0
pffrent 40 68 0 47 1 0 1 1 0 8 0
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 22 0 1 1 0 1 1 0 8 0
pfstkey 112 22 0 1 1 0 1 1 0 8 0
pfstate 328 22 0 0 2 0 2 2 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 256 188 0 0 12 0 12 12 0 8 0
art_table 32 189 0 0 2 0 2 2 0 8 0
art_node 16 44 0 4 1 0 1 1 0 8 0
sysvmsgpl 40 22 0 12 1 0 1 1 0 8 0
semupl 112 9 0 9 1 0 1 1 0 8 1
semapl 112 28 0 18 1 0 1 1 0 8 0
shmpl 112 18 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1516 0 106 46 0 46 46 0 8 0
ffsino 272 1516 0 106 95 0 95 95 0 8 0
nchpl 144 1877 0 258 61 0 61 61 0 8 0
uvmvnodes 72 1590 0 0 29 0 29 29 0 8 0
vnodes 208 1590 0 0 84 0 84 84 0 8 0
namei 1024 4936 0 4936 1 0 1 1 0 8 1
percpumem 16 33 0 1 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 2 0 0 1 0 1 1 0 8 0
scxspl 192 5900 0 5900 8 1 7 7 0 8 7
plimitpl 152 25 0 17 1 0 1 1 0 8 0
sigapl 424 312 0 280 4 0 4 4 0 8 0
futexpl 56 1662 0 1662 1 0 1 1 0 8 1
knotepl 112 53 0 34 1 0 1 1 0 8 0
kqueuepl 144 9 0 7 1 0 1 1 0 8 0
pipelkpl 48 93 0 83 1 0 1 1 0 8 0
pipepl 120 186 0 167 1 0 1 1 0 8 0
fdescpl 496 296 0 280 3 0 3 3 0 8 0
filepl 152 1813 0 1710 6 0 6 6 0 8 2
lockfpl 104 52 0 51 1 0 1 1 0 8 0
lockfspl 48 14 0 13 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 18 0 7 1 0 1 1 0 8 0
ucredpl 96 163 0 154 1 0 1 1 0 8 0
zombiepl 144 280 0 280 1 0 1 1 0 8 1
processpl 960 312 0 280 5 0 5 5 0 8 0
procpl 624 476 0 434 4 0 4 4 0 8 0
sosppl 128 3 0 3 1 0 1 1 0 8 1
sockpl 400 313 0 291 4 0 4 4 0 8 1
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 3 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 199 0 0 24 0 24 24 0 8 0
mtagpl 80 7 0 0 1 0 1 1 0 8 0
mbufpl 256 265 0 0 17 0 17 17 0 8 0
bufpl 280 4515 0 174 311 0 311 311 0 8 0
anonpl 16 46252 0 29847 76 1 75 75 0 124 7
amapchunkpl 152 1583 0 1444 11 0 11 11 0 158 4
amappl16 192 1355 0 462 46 0 46 46 0 8 1
amappl15 184 1 0 1 1 1 0 1 0 8 0
amappl14 176 69 0 65 2 1 1 1 0 8 0
amappl13 168 26 0 24 1 0 1 1 0 8 0
amappl12 160 9 0 8 2 1 1 1 0 8 0
amappl11 152 72 0 54 1 0 1 1 0 8 0
amappl10 144 23 0 18 1 0 1 1 0 8 0
amappl9 136 390 0 386 1 0 1 1 0 8 0
amappl8 128 322 0 296 1 0 1 1 0 8 0
amappl7 120 120 0 109 1 0 1 1 0 8 0
amappl6 112 27 0 22 1 0 1 1 0 8 0
amappl5 104 202 0 186 1 0 1 1 0 8 0
amappl4 96 501 0 469 2 1 1 2 0 8 0
amappl3 88 109 0 104 1 0 1 1 0 8 0
amappl2 80 1448 0 1379 3 1 2 3 0 8 0
amappl1 72 16531 0 16082 26 14 12 20 0 8 2
amappl 80 730 0 684 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 19 0 0 1 0 1 1 0 8 0
uaddrrnd 24 298 0 280 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 298 0 280 1 0 1 1 0 8 0
vmmpekpl 168 6310 0 6280 2 0 2 2 0 8 0
vmmpepl 168 43447 0 41408 123 7 116 116 0 357 26
vmsppl 368 297 0 280 2 0 2 2 0 8 0
pdppl 4096 604 0 562 6 0 6 6 0 8 0
pvpl 32 153434 0 133921 180 0 180 180 0 265 18
pmappl 232 297 0 280 2 0 2 2 0 8 0
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 178 0 3 5 0 5 5 0 8 0
---
This bug is generated by a bot. It may contain errors.
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Anton Lindqvist
Mar 10, 2020, 10:25:38 AM3/10/20
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: pool: cpu free list modified: mbufpl
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