kernel: protection fault trap, code=0
Stopped at sblock+0x4a: movq 0x8(%rax),%rax
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
the kernel did not panic
ddb> trace
sblock(fffffd806e52b710,fffffd806e52b7a8,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:323 [inline]
sblock(fffffd806e52b710,fffffd806e52b7a8,1) at sblock+0x4a sys/kern/uipc_socket2.c:378
soreceive(fffffd806e52b710,0,ffff80002172d878,0,0,ffff80002172d78c,d50d58f415e1f532) at soreceive+0x203 sys/kern/uipc_socket.c:776
fifo_read(ffff80002172d7e0) at fifo_read+0xcb sys/miscfs/fifofs/fifo_vnops.c:260
VOP_READ(fffffd806ad14478,ffff80002172d878,64,fffffd807f7d8780) at VOP_READ+0xbf sys/kern/vfs_vops.c:227
vn_rdwr(0,fffffd806ad14478,ffff800008943500,1002,0,1,b29ce688c93c242c,ffff8000006b3000,fffffd80708ea5e0,0) at vn_rdwr+0x105
vndstrategy(fffffd80708ea5e0) at vndstrategy+0x3b3 sys/dev/vnd.c:342
physio(ffffffff81b097c0,2902,8000,ffffffff81193e20,ffff80002172dce8) at physio+0x289 sys/kern/kern_physio.c:163
spec_read(ffff80002172db40) at spec_read+0xec sys/kern/spec_vnops.c:222
VOP_READ(fffffd806ed62bc8,ffff80002172dce8,0,fffffd807f7d88a0) at VOP_READ+0xbf sys/kern/vfs_vops.c:227
vn_read(fffffd806d018e28,ffff80002172dce8,0) at vn_read+0x121 sys/kern/vfs_vnops.c:375
dofilereadv(ffff80002165dce0,4,ffff80002172dce8,0,ffff80002172dde0) at dofilereadv+0x19e sys/kern/sys_generic.c:252
sys_read(ffff80002165dce0,ffff80002172dd88,ffff80002172dde0) at sys_read+0x83 sys/kern/sys_generic.c:172
syscall(ffff80002172de50) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x246e8578f70, count: -14
ddb> show registers
rdi 0
rsi 0x40
rbp 0xffff80002172d660
rbx 0x1
rdx 0x1
rcx 0xffff80002165dce4
rax 0x40afdfe4b41281f8
r8 0x400
r9 0
r10 0xeb767bfafa06e58c
r11 0x78b64149214d8c1a
r12 0
r13 0x1
r14 0xfffffd806e52b7f8
r15 0xfffffd806e52b710
rip 0xffffffff8213f77a sblock+0x4a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002172d600
ss 0x10
sblock+0x4a: movq 0x8(%rax),%rax
ddb> show proc
PROC (syz-executor.2) pid=339973 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=24, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff80002165da40,0xffff80002165ca90
process=0xffff80002166ebd8 user=0xffff800021728000, vmspace=0xfffffd806af59560
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
3220 10113 9167 0 2 0 syz-executor.0
75198 236080 30024 0 2 0 syz-executor.3
75198 292750 30024 0 2 0x4000000 syz-executor.3
31333 512444 51194 0 2 0 syz-executor.1
31333 349823 51194 0 2 0x4000000 syz-executor.1
15527 311584 38643 0 2 0 syz-executor.2
*15527 339973 38643 0 7 0x4000000 syz-executor.2
15527 73347 38643 0 3 0x4000080 fsleep syz-executor.2
30024 428016 77017 0 2 0x482 syz-executor.3
38643 208369 77017 0 2 0x482 syz-executor.2
51194 132667 77017 0 2 0x482 syz-executor.1
9167 292169 77017 0 2 0x482 syz-executor.0
77017 356402 2404 0 3 0x82 kqread syz-execprog
77017 27397 2404 0 2 0x4000482 syz-execprog
77017 359130 2404 0 3 0x4000082 thrsleep syz-execprog
77017 304134 2404 0 3 0x4000082 thrsleep syz-execprog
77017 1812 2404 0 3 0x4000082 thrsleep syz-execprog
77017 305282 2404 0 3 0x4000082 thrsleep syz-execprog
2404 517055 75247 0 3 0x10008a sigsusp ksh
75247 27671 23046 0 3 0x9a poll sshd
95443 468751 1 0 3 0x100083 ttyin getty
23046 455818 1 0 3 0x88 poll sshd
24646 242902 34592 73 2 0x100010 syslogd
34592 396542 1 0 3 0x100082 netio syslogd
56175 332448 1 0 3 0x100080 kqread resolvd
31908 232566 34650 77 3 0x100092 kqread dhcpleased
66713 511616 34650 77 3 0x100092 kqread dhcpleased
34650 57041 1 0 3 0x80 kqread dhcpleased
65100 49579 0 0 3 0x14200 bored smr
64221 39312 0 0 2 0x14200 zerothread
65383 103619 0 0 3 0x14200 aiodoned aiodoned
30028 284373 0 0 3 0x14200 syncer update
42180 100238 0 0 3 0x14200 cleaner cleaner
67375 332711 0 0 3 0x14200 reaper reaper
92243 365898 0 0 3 0x14200 pgdaemon pagedaemon
49363 386136 0 0 3 0x14200 bored viomb
12411 488430 0 0 3 0x40014200 acpi0 acpi0
39600 297311 0 0 3 0x14200 bored softnet
34478 563 0 0 3 0x14200 bored systqmp
91400 358779 0 0 3 0x14200 bored systq
72614 449475 0 0 3 0x40014200 bored softclock
91773 62802 0 0 3 0x40014200 idle0
1 277340 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 10138 6390K 6412K 78643K 11879 0
pcb 13 8K 8K 78643K 13 0
rtable 150 4K 4K 78643K 234 0
ifaddr 53 12K 12K 78643K 53 0
counters 23 16K 16K 78643K 23 0
ioctlops 0 0K 2K 78643K 29 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1178 74K 74K 78643K 3620 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 0K 0K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12598 0
file desc 10 33K 49K 78643K 2506 0
proc 55 54K 71K 78643K 337 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 55 3K 3K 78643K 55 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 25 122K 122K 78643K 25 0
exec 0 0K 2K 78643K 427 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 180 38K 39K 78643K 38560 0
UVM aobj 3 2K 2K 78643K 3 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 7 0K 1K 78643K 15 0
temp 36 4178K 4243K 78643K 9486 0
kqueue 10 14K 14K 78643K 10 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 28 0 25 1 0 1 1 0 8 0
rtentry 112 67 0 1 2 0 2 2 0 8 0
unpcb 136 4905 0 4892 1 0 1 1 0 8 0
syncache 296 5 0 5 2 2 0 1 0 8 0
tcpcb 736 7 0 4 1 0 1 1 0 8 0
arp 88 10 0 0 1 0 1 1 0 8 0
inpcb 304 38 0 32 1 0 1 1 0 8 0
nd6 48 12 0 0 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 277 0 0 18 0 18 18 0 8 0
art_table 32 278 0 0 3 0 3 3 0 8 0
art_node 16 66 0 6 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 8740 0 7333 89 0 89 89 0 8 0
ffsino 240 8740 0 7333 84 0 84 84 0 8 0
nchpl 144 11405 0 9791 61 0 61 61 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 32117 0 32117 2 1 1 1 0 8 1
scxspl 216 26976 0 26976 33 32 1 8 0 8 1
plimitpl 152 19 0 9 1 0 1 1 0 8 0
sigapl 424 2728 0 2694 5 1 4 5 0 8 0
futexpl 64 31751 0 31750 1 0 1 1 0 8 0
knotepl 112 204 0 156 2 0 2 2 0 8 0
kqueuepl 184 6 0 0 1 0 1 1 0 8 0
pipepl 304 89 0 73 3 1 2 2 0 8 0
fdescpl 432 2715 0 2694 3 0 3 3 0 8 0
filepl 120 13337 0 13243 4 0 4 4 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 21 0 9 1 0 1 1 0 8 0
pgrppl 48 21 0 9 1 0 1 1 0 8 0
ucredpl 96 719 0 709 1 0 1 1 0 8 0
zombiepl 144 2694 0 2694 2 1 1 1 0 8 1
processpl 1000 2728 0 2694 5 0 5 5 0 8 0
procpl 672 10539 0 10496 5 0 5 5 0 8 1
sockpl 448 4971 0 4949 4 0 4 4 0 8 1
mcl8k 8192 9 0 9 2 2 0 1 0 8 0
mcl4k 4096 5 0 5 2 2 0 1 0 8 0
mcl2k 2048 5404 0 5368 7 2 5 6 0 8 0
mtagpl 96 4 0 4 1 1 0 1 0 8 0
mbufpl 256 90470 0 90259 18 0 18 18 0 8 0
bufpl 288 7951 0 1534 459 0 459 459 0 8 0
anonpl 24 834758 0 829575 45 8 37 38 0 188 0
amapchunkpl 152 93785 0 93385 21 2 19 20 0 158 1
amappl16 200 5094 0 5002 5 0 5 5 0 8 0
amappl15 192 647 0 644 1 0 1 1 0 8 0
amappl14 184 10 0 5 1 0 1 1 0 8 0
amappl13 176 40 0 39 2 1 1 1 0 8 0
amappl12 168 625 0 621 2 1 1 1 0 8 0
amappl11 160 668 0 656 1 0 1 1 0 8 0
amappl10 152 45 0 39 1 0 1 1 0 8 0
amappl9 144 429 0 425 1 0 1 1 0 8 0
amappl8 136 915 0 896 2 1 1 1 0 8 0
amappl7 128 658 0 651 1 0 1 1 0 8 0
amappl6 120 145 0 132 1 0 1 1 0 8 0
amappl5 112 2030 0 2016 1 0 1 1 0 8 0
amappl4 104 1191 0 1172 1 0 1 1 0 8 0
amappl3 96 752 0 735 1 0 1 1 0 8 0
amappl2 88 959 0 918 2 0 2 2 0 8 0
amappl1 80 59079 0 58613 15 4 11 12 0 8 0
amappl 88 38256 0 38114 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 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 2715 0 2694 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2715 0 2694 1 0 1 1 0 8 0
vmmpekpl 168 28443 0 28423 2 0 2 2 0 8 0
vmmpepl 168 233630 0 232211 72 6 66 66 0 357 3
vmsppl 272 2714 0 2694 3 1 2 2 0 8 0
rwobjpl 24 76947 0 70224 41 0 41 41 0 8 0
pdppl 4096 5436 0 5388 80 32 48 56 0 8 0
pvpl 32 1324753 0 1316324 157 81 76 137 0 265 0
pmappl 216 2714 0 2694 2 0 2 2 0 8 0
extentpl 40 57 0 38 1 0 1 1 0 8 0
phpool 112 776 0 42 21 0 21 21 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
sblock(fffffd806e52b710,fffffd806e52b7a8,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:323 [inline]
sblock(fffffd806e52b710,fffffd806e52b7a8,1) at sblock+0x4a sys/kern/uipc_socket2.c:378
soreceive(fffffd806e52b710,0,ffff80002172d878,0,0,ffff80002172d78c,d50d58f415e1f532) at soreceive+0x203 sys/kern/uipc_socket.c:776
fifo_read(ffff80002172d7e0) at fifo_read+0xcb sys/miscfs/fifofs/fifo_vnops.c:260
VOP_READ(fffffd806ad14478,ffff80002172d878,64,fffffd807f7d8780) at VOP_READ+0xbf sys/kern/vfs_vops.c:227
vn_rdwr(0,fffffd806ad14478,ffff800008943500,1002,0,1,b29ce688c93c242c,ffff8000006b3000,fffffd80708ea5e0,0) at vn_rdwr+0x105
vndstrategy(fffffd80708ea5e0) at vndstrategy+0x3b3 sys/dev/vnd.c:342
physio(ffffffff81b097c0,2902,8000,ffffffff81193e20,ffff80002172dce8) at physio+0x289 sys/kern/kern_physio.c:163
spec_read(ffff80002172db40) at spec_read+0xec sys/kern/spec_vnops.c:222
VOP_READ(fffffd806ed62bc8,ffff80002172dce8,0,fffffd807f7d88a0) at VOP_READ+0xbf sys/kern/vfs_vops.c:227
vn_read(fffffd806d018e28,ffff80002172dce8,0) at vn_read+0x121 sys/kern/vfs_vnops.c:375
dofilereadv(ffff80002165dce0,4,ffff80002172dce8,0,ffff80002172dde0) at dofilereadv+0x19e sys/kern/sys_generic.c:252
sys_read(ffff80002165dce0,ffff80002172dd88,ffff80002172dde0) at sys_read+0x83 sys/kern/sys_generic.c:172
syscall(ffff80002172de50) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x246e8578f70, count: -14
ddb> machine ddbcpu 1
No such command
ddb> trace
sblock(fffffd806e52b710,fffffd806e52b7a8,1) at sblock+0x4a soassertlocked sys/kern/uipc_socket2.c:323 [inline]
sblock(fffffd806e52b710,fffffd806e52b7a8,1) at sblock+0x4a sys/kern/uipc_socket2.c:378
soreceive(fffffd806e52b710,0,ffff80002172d878,0,0,ffff80002172d78c,d50d58f415e1f532) at soreceive+0x203 sys/kern/uipc_socket.c:776
fifo_read(ffff80002172d7e0) at fifo_read+0xcb sys/miscfs/fifofs/fifo_vnops.c:260
VOP_READ(fffffd806ad14478,ffff80002172d878,64,fffffd807f7d8780) at VOP_READ+0xbf sys/kern/vfs_vops.c:227
vn_rdwr(0,fffffd806ad14478,ffff800008943500,1002,0,1,b29ce688c93c242c,ffff8000006b3000,fffffd80708ea5e0,0) at vn_rdwr+0x105
vndstrategy(fffffd80708ea5e0) at vndstrategy+0x3b3 sys/dev/vnd.c:342
physio(ffffffff81b097c0,2902,8000,ffffffff81193e20,ffff80002172dce8) at physio+0x289 sys/kern/kern_physio.c:163
spec_read(ffff80002172db40) at spec_read+0xec sys/kern/spec_vnops.c:222
VOP_READ(fffffd806ed62bc8,ffff80002172dce8,0,fffffd807f7d88a0) at VOP_READ+0xbf sys/kern/vfs_vops.c:227
vn_read(fffffd806d018e28,ffff80002172dce8,0) at vn_read+0x121 sys/kern/vfs_vnops.c:375
dofilereadv(ffff80002165dce0,4,ffff80002172dce8,0,ffff80002172dde0) at dofilereadv+0x19e sys/kern/sys_generic.c:252
sys_read(ffff80002165dce0,ffff80002172dd88,ffff80002172dde0) at sys_read+0x83 sys/kern/sys_generic.c:172
syscall(ffff80002172de50) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x246e8578f70, count: -14