assert "tname->un_flags & UNVEIL_USERSET" failed: file "/syzkaller/managerspanic: kernel diagnostic assertion "!_kernel_
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syzbot
Mar 26, 2019, 5:26:08 PM3/26/19
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: ad597a5f Use limits.h instead of sys/limits.h for portabil..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=11517b3b200000
kernel config: https://syzkaller.appspot.com/x/.config?x=fa145722143cbd64
dashboard link: https://syzkaller.appspot.com/bug?extid=a2a5e63485669beada13
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+a2a5e6...@syzkaller.appspotmail.com
panic: kernel diagnostic assertion "tname->un_flags & UNVEIL_USERSET"
failed: file "/syzkaller/managerspanic: kernel diagnostic
assertion "!_kernel_lock_held()" failed:
file "/syzkaller/managers/multicore/kernel/sys/kern/kern_fork.c", line 689
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
175166 29039 0 0 0x4000000 0 syz-executor.0
*442450 88474 0 0 0x4000000 1 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x174 sys/kern/subr_prf.c:208
__assert(ffffffff81f7eb2c,ffffffff81f6b8b7,2b1,ffffffff81f50acf) at
__assert+0x2e sys/kern/subr_prf.c:155
proc_trampoline_mp() at proc_trampoline_mp+0x13b
end trace frame: 0x0, count: 11
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
kernel diagnostic assertion "tname->un_flags & UNVEIL_USERSET" failed:
file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 879
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x174 sys/kern/subr_prf.c:208
__assert(ffffffff81f7eb2c,ffffffff81f6b8b7,2b1,ffffffff81f50acf) at
__assert+0x2e sys/kern/subr_prf.c:155
proc_trampoline_mp() at proc_trampoline_mp+0x13b
end trace frame: 0x0, count: -4
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020c69b80
rbx 0xffff800020c69c30
rdx 0xffffffff81f89e77 apollo_pio_rec+0x9e22
rcx 0
rax 0
r8 0xffffffff811c43a3 kprintf+0x183
r9 0x1
r10 0x25
r11 0xda9d9faa7e628ab1
r12 0x3000000008
r13 0xffff800020c69b90
r14 0x104
r15 0x1
rip 0xffffffff81e2e758 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020c69b70
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.1) pid=442450 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020b38978,0xffff800020b39c48
process=0xffff800020b8d3c8 user=0xffff800020c64000,
vmspace=0xfffffd807effe2d0
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
29039 14373 44836 0 2 0 syz-executor.0
29039 175166 44836 0 7 0x4000000 syz-executor.0
88474 441208 82719 0 2 0 syz-executor.1
88474 274991 82719 0 3 0x4000080 ttyin syz-executor.1
88474 403617 82719 0 3 0x4000080 ttyout syz-executor.1
*88474 442450 82719 0 7 0x4000000 syz-executor.1
88474 462564 82719 0 2 0x4000000 syz-executor.1
44836 82514 91975 0 3 0x82 nanosleep syz-executor.0
69301 377843 0 0 3 0x14200 bored sosplice
82719 55669 91975 0 3 0x82 nanosleep syz-executor.1
91975 409765 4968 0 3 0x82 thrsleep syz-fuzzer
91975 372651 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 483474 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 337238 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 403542 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 401478 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 296423 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 104070 4968 0 3 0x4000082 kqread syz-fuzzer
91975 6857 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 347094 4968 0 3 0x4000082 thrsleep syz-fuzzer
4968 80088 99414 0 3 0x10008a pause ksh
99414 279682 7565 0 3 0x92 select sshd
82966 512380 1 0 3 0x100083 ttyin getty
7565 23575 1 0 3 0x80 select sshd
97205 73793 775 74 3 0x100092 bpf pflogd
775 507161 1 0 3 0x80 netio pflogd
44332 118314 23354 73 3 0x100090 kqread syslogd
23354 224085 1 0 3 0x100082 netio syslogd
17114 152265 1 77 3 0x100090 poll dhclient
66722 458341 1 0 3 0x80 poll dhclient
54122 234378 0 0 2 0x14200 zerothread
80142 291394 0 0 3 0x14200 aiodoned aiodoned
93378 103641 0 0 3 0x14200 syncer update
99569 115002 0 0 3 0x14200 cleaner cleaner
48822 231192 0 0 3 0x14200 reaper reaper
87191 284938 0 0 3 0x14200 pgdaemon pagedaemon
43879 290325 0 0 3 0x14200 bored crynlk
93279 280495 0 0 3 0x14200 bored crypto
46402 422062 0 0 3 0x40014200 acpi0 acpi0
68897 455091 0 0 3 0x40014200 idle1
23290 93685 0 0 3 0x14200 bored softnet
63538 421608 0 0 3 0x14200 bored systqmp
36925 5735 0 0 3 0x14200 bored systq
3356 249348 0 0 3 0x40014200 bored softclock
10807 277481 0 0 3 0x40014200 idle0
47045 384000 0 0 3 0x14200 bored smr
1 56534 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 29039 (syz-executor.0) thread 0xffff800020b38978 (175166)
exclusive rrwlock inode r = 0 (0xfffffd806e3965f8) locked @
/syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547
#0 witness_lock+0x594 sys/kern/subr_witness.c:1201
#1 _rw_enter+0x45d sys/kern/kern_rwlock.c:280
#2 _rrw_enter+0x60 sys/kern/kern_rwlock.c:410
#3 VOP_LOCK+0x57 sys/kern/vfs_vops.c:602
#4 vn_lock+0x6e sys/kern/vfs_vnops.c:549
#5 vfs_lookup+0xf5 sys/kern/vfs_lookup.c:387
#6 namei+0x4b2 sys/kern/vfs_lookup.c:224
#7 domknodat+0xa1 sys/kern/vfs_syscalls.c:1405
#8 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline]
#8 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8234a3d0) locked @
/syzkaller/managers/multicore/kernel/sys/sys/syscall_mi.h:90
#0 witness_lock+0x594 sys/kern/subr_witness.c:1201
#1 syscall+0x48b mi_syscall sys/sys/syscall_mi.h:91 [inline]
#1 syscall+0x48b sys/arch/amd64/amd64/trap.c:574
#2 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9528 6417K 6419K 78643K 10699 0 0
pcb 25 9K 10K 78643K 128 0 0
rtable 100 3K 4K 78643K 274 0 0
ifaddr 62 13K 13K 78643K 100 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1472 0 0
iov 0 0K 16K 78643K 29 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1205 75K 76K 78643K 1339 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 5K 78643K 6 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 12 0K 0K 78643K 22 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12628 0 0
file desc 6 17K 21K 78643K 219 0 0
proc 56 63K 71K 78643K 382 0 0
subproc 64 65538K 67586K 78643K 102 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 28 0 0
in_multi 33 2K 2K 78643K 59 0 0
ether_multi 1 0K 0K 78643K 4 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 72 318K 318K 78643K 72 0 0
exec 0 0K 1K 78643K 209 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 85 20K 29K 78643K 1534 0 0
UVM aobj 10 2K 2K 78643K 10 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 0K 78643K 17 0 0
NDP 13 0K 0K 78643K 28 0 0
temp 140 2366K 2433K 78643K 3830 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 5 0 1 1 0 1 1 0
8 0
inpcbpl 280 154 0 147 1 0 1 1 0
8 0
plimitpl 152 25 0 17 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtentry 112 50 0 10 2 0 2 2 0
8 0
syncache 264 4 0 4 2 2 0 1 0
8 0
tcpcb 544 50 0 46 1 0 1 1 0
8 0
nd6 48 6 0 2 1 0 1 1 0
8 0
ppxss 1128 6 0 6 3 2 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 13 0 3 1 0 1 1 0
8 0
pfstkey 112 13 0 3 1 0 1 1 0
8 0
pfstate 328 13 0 3 1 0 1 1 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 256 229 0 41 12 0 12 12 0
8 0
art_table 32 230 0 41 2 0 2 2 0
8 0
art_node 16 49 0 15 1 0 1 1 0
8 0
semupl 112 1 0 1 1 0 1 1 0
8 1
semapl 112 20 0 10 1 0 1 1 0
8 0
shmpl 112 8 0 0 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1803 0 381 46 0 46 46 0
8 0
ffsino 272 1803 0 381 96 0 96 96 0
8 1
nchpl 144 2313 0 679 61 0 61 61 0
8 0
uvmvnodes 72 1891 0 0 35 0 35 35 0
8 0
vnodes 200 1891 0 0 100 0 100 100 0
8 0
namei 1024 6322 0 6321 3 2 1 1 0
8 0
percpumem 16 30 0 0 1 0 1 1 0
8 0
scxspl 192 5974 0 5974 8 7 1 6 0
8 1
sigapl 432 415 0 399 2 0 2 2 0
8 0
futexpl 56 1992 0 1992 1 0 1 1 0
8 1
knotepl 112 109 0 90 1 0 1 1 0
8 0
kqueuepl 104 43 0 41 1 0 1 1 0
8 0
pipepl 112 278 0 259 3 2 1 1 0
8 0
fdescpl 488 416 0 399 3 0 3 3 0
8 0
filepl 152 2250 0 2148 5 0 5 5 0
8 1
lockfpl 104 57 0 57 2 1 1 1 0
8 1
lockfspl 32 86 0 86 2 1 1 1 0
8 1
sessionpl 112 19 0 8 1 0 1 1 0
8 0
pgrppl 48 21 0 10 1 0 1 1 0
8 0
ucredpl 96 359 0 350 1 0 1 1 0
8 0
zombiepl 144 399 0 399 3 2 1 1 0
8 1
processpl 840 432 0 399 4 0 4 4 0
8 0
procpl 600 852 0 805 5 0 5 5 0
8 1
srpgc 64 6 0 6 1 0 1 1 0
8 1
sosppl 128 2 0 2 1 1 0 1 0
8 0
sockpl 384 250 0 231 3 0 3 3 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
mcl9k 9216 2 0 0 1 0 1 1 0
8 0
mcl8k 8192 1 0 0 1 0 1 1 0
8 0
mcl4k 4096 4 0 0 1 0 1 1 0
8 0
mcl2k2 2112 1 0 0 1 0 1 1 0
8 0
mcl2k 2048 127 0 0 14 0 14 14 0
8 0
mtagpl 80 1 0 0 1 0 1 1 0
8 0
mbufpl 256 147 0 0 8 0 8 8 0
8 0
bufpl 256 6064 0 1143 308 0 308 308 0
8 0
anonpl 16 56163 0 48232 54 7 47 51 0 125
12
amapchunkpl 152 2549 0 2446 13 1 12 12 0
158 6
amappl16 192 1822 0 1387 34 8 26 34 0
8 4
amappl15 184 59 0 54 1 0 1 1 0
8 0
amappl14 176 125 0 120 3 2 1 1 0
8 0
amappl13 168 26 0 23 1 0 1 1 0
8 0
amappl12 160 15 0 14 2 1 1 1 0
8 0
amappl11 152 23 0 8 1 0 1 1 0
8 0
amappl10 144 67 0 63 1 0 1 1 0
8 0
amappl9 136 653 0 650 1 0 1 1 0
8 0
amappl8 128 211 0 197 1 0 1 1 0
8 0
amappl7 120 33 0 28 1 0 1 1 0
8 0
amappl6 112 59 0 50 1 0 1 1 0
8 0
amappl5 104 116 0 102 1 0 1 1 0
8 0
amappl4 96 635 0 603 2 1 1 2 0
8 0
amappl3 88 202 0 196 1 0 1 1 0
8 0
amappl2 80 2439 0 2371 2 0 2 2 0
8 0
amappl1 72 18464 0 18009 25 15 10 20 0
8 0
amappl 72 1105 0 1065 1 0 1 1 0
75 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
dma64 64 259 0 259 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
aobjpl 64 9 0 0 1 0 1 1 0
8 0
uaddrrnd 24 416 0 399 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 416 0 399 1 0 1 1 0
8 0
vmmpekpl 168 7389 0 7365 2 0 2 2 0
8 0
vmmpepl 168 51338 0 49807 89 11 78 78 0 357
11
vmsppl 360 415 0 399 2 0 2 2 0
8 0
pdppl 4096 840 0 798 6 0 6 6 0
8 0
pvpl 32 176545 0 165292 144 16 128 132 0 265
33
pmappl 224 415 0 399 2 1 1 2 0
8 0
extentpl 40 39 0 25 1 0 1 1 0
8 0
phpool 112 460 0 5 13 0 13 13 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: ad597a5f Use limits.h instead of sys/limits.h for portabil..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=11517b3b200000
kernel config: https://syzkaller.appspot.com/x/.config?x=fa145722143cbd64
dashboard link: https://syzkaller.appspot.com/bug?extid=a2a5e63485669beada13
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+a2a5e6...@syzkaller.appspotmail.com
panic: kernel diagnostic assertion "tname->un_flags & UNVEIL_USERSET"
failed: file "/syzkaller/managerspanic: kernel diagnostic
assertion "!_kernel_lock_held()" failed:
file "/syzkaller/managers/multicore/kernel/sys/kern/kern_fork.c", line 689
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
175166 29039 0 0 0x4000000 0 syz-executor.0
*442450 88474 0 0 0x4000000 1 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x174 sys/kern/subr_prf.c:208
__assert(ffffffff81f7eb2c,ffffffff81f6b8b7,2b1,ffffffff81f50acf) at
__assert+0x2e sys/kern/subr_prf.c:155
proc_trampoline_mp() at proc_trampoline_mp+0x13b
end trace frame: 0x0, count: 11
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
kernel diagnostic assertion "tname->un_flags & UNVEIL_USERSET" failed:
file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 879
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x174 sys/kern/subr_prf.c:208
__assert(ffffffff81f7eb2c,ffffffff81f6b8b7,2b1,ffffffff81f50acf) at
__assert+0x2e sys/kern/subr_prf.c:155
proc_trampoline_mp() at proc_trampoline_mp+0x13b
end trace frame: 0x0, count: -4
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020c69b80
rbx 0xffff800020c69c30
rdx 0xffffffff81f89e77 apollo_pio_rec+0x9e22
rcx 0
rax 0
r8 0xffffffff811c43a3 kprintf+0x183
r9 0x1
r10 0x25
r11 0xda9d9faa7e628ab1
r12 0x3000000008
r13 0xffff800020c69b90
r14 0x104
r15 0x1
rip 0xffffffff81e2e758 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020c69b70
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.1) pid=442450 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020b38978,0xffff800020b39c48
process=0xffff800020b8d3c8 user=0xffff800020c64000,
vmspace=0xfffffd807effe2d0
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
29039 14373 44836 0 2 0 syz-executor.0
29039 175166 44836 0 7 0x4000000 syz-executor.0
88474 441208 82719 0 2 0 syz-executor.1
88474 274991 82719 0 3 0x4000080 ttyin syz-executor.1
88474 403617 82719 0 3 0x4000080 ttyout syz-executor.1
*88474 442450 82719 0 7 0x4000000 syz-executor.1
88474 462564 82719 0 2 0x4000000 syz-executor.1
44836 82514 91975 0 3 0x82 nanosleep syz-executor.0
69301 377843 0 0 3 0x14200 bored sosplice
82719 55669 91975 0 3 0x82 nanosleep syz-executor.1
91975 409765 4968 0 3 0x82 thrsleep syz-fuzzer
91975 372651 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 483474 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 337238 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 403542 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 401478 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 296423 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 104070 4968 0 3 0x4000082 kqread syz-fuzzer
91975 6857 4968 0 3 0x4000082 thrsleep syz-fuzzer
91975 347094 4968 0 3 0x4000082 thrsleep syz-fuzzer
4968 80088 99414 0 3 0x10008a pause ksh
99414 279682 7565 0 3 0x92 select sshd
82966 512380 1 0 3 0x100083 ttyin getty
7565 23575 1 0 3 0x80 select sshd
97205 73793 775 74 3 0x100092 bpf pflogd
775 507161 1 0 3 0x80 netio pflogd
44332 118314 23354 73 3 0x100090 kqread syslogd
23354 224085 1 0 3 0x100082 netio syslogd
17114 152265 1 77 3 0x100090 poll dhclient
66722 458341 1 0 3 0x80 poll dhclient
54122 234378 0 0 2 0x14200 zerothread
80142 291394 0 0 3 0x14200 aiodoned aiodoned
93378 103641 0 0 3 0x14200 syncer update
99569 115002 0 0 3 0x14200 cleaner cleaner
48822 231192 0 0 3 0x14200 reaper reaper
87191 284938 0 0 3 0x14200 pgdaemon pagedaemon
43879 290325 0 0 3 0x14200 bored crynlk
93279 280495 0 0 3 0x14200 bored crypto
46402 422062 0 0 3 0x40014200 acpi0 acpi0
68897 455091 0 0 3 0x40014200 idle1
23290 93685 0 0 3 0x14200 bored softnet
63538 421608 0 0 3 0x14200 bored systqmp
36925 5735 0 0 3 0x14200 bored systq
3356 249348 0 0 3 0x40014200 bored softclock
10807 277481 0 0 3 0x40014200 idle0
47045 384000 0 0 3 0x14200 bored smr
1 56534 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 29039 (syz-executor.0) thread 0xffff800020b38978 (175166)
exclusive rrwlock inode r = 0 (0xfffffd806e3965f8) locked @
/syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547
#0 witness_lock+0x594 sys/kern/subr_witness.c:1201
#1 _rw_enter+0x45d sys/kern/kern_rwlock.c:280
#2 _rrw_enter+0x60 sys/kern/kern_rwlock.c:410
#3 VOP_LOCK+0x57 sys/kern/vfs_vops.c:602
#4 vn_lock+0x6e sys/kern/vfs_vnops.c:549
#5 vfs_lookup+0xf5 sys/kern/vfs_lookup.c:387
#6 namei+0x4b2 sys/kern/vfs_lookup.c:224
#7 domknodat+0xa1 sys/kern/vfs_syscalls.c:1405
#8 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline]
#8 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8234a3d0) locked @
/syzkaller/managers/multicore/kernel/sys/sys/syscall_mi.h:90
#0 witness_lock+0x594 sys/kern/subr_witness.c:1201
#1 syscall+0x48b mi_syscall sys/sys/syscall_mi.h:91 [inline]
#1 syscall+0x48b sys/arch/amd64/amd64/trap.c:574
#2 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9528 6417K 6419K 78643K 10699 0 0
pcb 25 9K 10K 78643K 128 0 0
rtable 100 3K 4K 78643K 274 0 0
ifaddr 62 13K 13K 78643K 100 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1472 0 0
iov 0 0K 16K 78643K 29 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1205 75K 76K 78643K 1339 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 5K 78643K 6 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 12 0K 0K 78643K 22 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12628 0 0
file desc 6 17K 21K 78643K 219 0 0
proc 56 63K 71K 78643K 382 0 0
subproc 64 65538K 67586K 78643K 102 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 28 0 0
in_multi 33 2K 2K 78643K 59 0 0
ether_multi 1 0K 0K 78643K 4 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 72 318K 318K 78643K 72 0 0
exec 0 0K 1K 78643K 209 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 85 20K 29K 78643K 1534 0 0
UVM aobj 10 2K 2K 78643K 10 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 0K 78643K 17 0 0
NDP 13 0K 0K 78643K 28 0 0
temp 140 2366K 2433K 78643K 3830 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 5 0 1 1 0 1 1 0
8 0
inpcbpl 280 154 0 147 1 0 1 1 0
8 0
plimitpl 152 25 0 17 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtentry 112 50 0 10 2 0 2 2 0
8 0
syncache 264 4 0 4 2 2 0 1 0
8 0
tcpcb 544 50 0 46 1 0 1 1 0
8 0
nd6 48 6 0 2 1 0 1 1 0
8 0
ppxss 1128 6 0 6 3 2 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 13 0 3 1 0 1 1 0
8 0
pfstkey 112 13 0 3 1 0 1 1 0
8 0
pfstate 328 13 0 3 1 0 1 1 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 256 229 0 41 12 0 12 12 0
8 0
art_table 32 230 0 41 2 0 2 2 0
8 0
art_node 16 49 0 15 1 0 1 1 0
8 0
semupl 112 1 0 1 1 0 1 1 0
8 1
semapl 112 20 0 10 1 0 1 1 0
8 0
shmpl 112 8 0 0 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1803 0 381 46 0 46 46 0
8 0
ffsino 272 1803 0 381 96 0 96 96 0
8 1
nchpl 144 2313 0 679 61 0 61 61 0
8 0
uvmvnodes 72 1891 0 0 35 0 35 35 0
8 0
vnodes 200 1891 0 0 100 0 100 100 0
8 0
namei 1024 6322 0 6321 3 2 1 1 0
8 0
percpumem 16 30 0 0 1 0 1 1 0
8 0
scxspl 192 5974 0 5974 8 7 1 6 0
8 1
sigapl 432 415 0 399 2 0 2 2 0
8 0
futexpl 56 1992 0 1992 1 0 1 1 0
8 1
knotepl 112 109 0 90 1 0 1 1 0
8 0
kqueuepl 104 43 0 41 1 0 1 1 0
8 0
pipepl 112 278 0 259 3 2 1 1 0
8 0
fdescpl 488 416 0 399 3 0 3 3 0
8 0
filepl 152 2250 0 2148 5 0 5 5 0
8 1
lockfpl 104 57 0 57 2 1 1 1 0
8 1
lockfspl 32 86 0 86 2 1 1 1 0
8 1
sessionpl 112 19 0 8 1 0 1 1 0
8 0
pgrppl 48 21 0 10 1 0 1 1 0
8 0
ucredpl 96 359 0 350 1 0 1 1 0
8 0
zombiepl 144 399 0 399 3 2 1 1 0
8 1
processpl 840 432 0 399 4 0 4 4 0
8 0
procpl 600 852 0 805 5 0 5 5 0
8 1
srpgc 64 6 0 6 1 0 1 1 0
8 1
sosppl 128 2 0 2 1 1 0 1 0
8 0
sockpl 384 250 0 231 3 0 3 3 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
mcl9k 9216 2 0 0 1 0 1 1 0
8 0
mcl8k 8192 1 0 0 1 0 1 1 0
8 0
mcl4k 4096 4 0 0 1 0 1 1 0
8 0
mcl2k2 2112 1 0 0 1 0 1 1 0
8 0
mcl2k 2048 127 0 0 14 0 14 14 0
8 0
mtagpl 80 1 0 0 1 0 1 1 0
8 0
mbufpl 256 147 0 0 8 0 8 8 0
8 0
bufpl 256 6064 0 1143 308 0 308 308 0
8 0
anonpl 16 56163 0 48232 54 7 47 51 0 125
12
amapchunkpl 152 2549 0 2446 13 1 12 12 0
158 6
amappl16 192 1822 0 1387 34 8 26 34 0
8 4
amappl15 184 59 0 54 1 0 1 1 0
8 0
amappl14 176 125 0 120 3 2 1 1 0
8 0
amappl13 168 26 0 23 1 0 1 1 0
8 0
amappl12 160 15 0 14 2 1 1 1 0
8 0
amappl11 152 23 0 8 1 0 1 1 0
8 0
amappl10 144 67 0 63 1 0 1 1 0
8 0
amappl9 136 653 0 650 1 0 1 1 0
8 0
amappl8 128 211 0 197 1 0 1 1 0
8 0
amappl7 120 33 0 28 1 0 1 1 0
8 0
amappl6 112 59 0 50 1 0 1 1 0
8 0
amappl5 104 116 0 102 1 0 1 1 0
8 0
amappl4 96 635 0 603 2 1 1 2 0
8 0
amappl3 88 202 0 196 1 0 1 1 0
8 0
amappl2 80 2439 0 2371 2 0 2 2 0
8 0
amappl1 72 18464 0 18009 25 15 10 20 0
8 0
amappl 72 1105 0 1065 1 0 1 1 0
75 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
dma64 64 259 0 259 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
aobjpl 64 9 0 0 1 0 1 1 0
8 0
uaddrrnd 24 416 0 399 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 416 0 399 1 0 1 1 0
8 0
vmmpekpl 168 7389 0 7365 2 0 2 2 0
8 0
vmmpepl 168 51338 0 49807 89 11 78 78 0 357
11
vmsppl 360 415 0 399 2 0 2 2 0
8 0
pdppl 4096 840 0 798 6 0 6 6 0
8 0
pvpl 32 176545 0 165292 144 16 128 132 0 265
33
pmappl 224 415 0 399 2 1 1 2 0
8 0
extentpl 40 39 0 25 1 0 1 1 0
8 0
phpool 112 460 0 5 13 0 13 13 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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Anton Lindqvist
Mar 27, 2019, 7:06:16 AM3/27/19
to syzbot, syzkaller-o...@googlegroups.com
#syz dup: assert "tname->un_flags & UNVEIL_USERSET" failed in kern_unveil.c
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