uvm_fault(0xfffffd806e90e2d8, 0x28, 0, 2) -> e
kernel: page fault trap, code=0
Stopped at wsmux_do_ioctl+0x6ba: movq %rax,0x10(%rdx,%r15,8)
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> show panic
kernel page fault
uvm_fault(0xfffffd806e90e2d8, 0x28, 0, 2) -> e
wsmux_do_ioctl(ee79b6071e14d62b,80185760,fffffd806dc2f580,f,fffffd807f7c7ba0) at wsmux_do_ioctl+0x6ba sys/dev/wscons/wsmux.c:404
end trace frame: 0xffff800020c22f10, count: 0
ddb{0}> trace
wsmux_do_ioctl(ee79b6071e14d62b,80185760,fffffd806dc2f580,f,fffffd807f7c7ba0) at wsmux_do_ioctl+0x6ba sys/dev/wscons/wsmux.c:404
VOP_IOCTL(5636c2c0f7c1dde2,80185760,fffffd80741ef260,ffff800020b74e18,fffffd806dc2f580,ffff800020b74e18) at VOP_IOCTL+0x80 sys/kern/vfs_vops.c:290
vn_ioctl(22cc9d2c988fcff,fffffd80741ef260,ffff800020b74e18,18) at vn_ioctl+0xc5 sys/kern/vfs_vnops.c:512sys_ioctl(b503842e34188979,0,ffff800020b74e18) at sys_ioctl+0x652
syscall(68b32b9fc24c344b) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline]
syscall(68b32b9fc24c344b) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583
Xsyscall(6,0,e4763a350c8,0,e4763a350a8,e4763a350a0) at Xsyscall+0x128
end of kernel
end trace frame: 0xe499ac51a50, count: -6
ddb{0}> show registers
rdi 0xff
rsi 0x2
rbp 0xffff800020c22e90
rbx 0x2
rdx 0
rcx 0x1
rax 0x3
r8 0xffffffff815384e0 wsmux_do_ioctl+0x1e0
r9 0x7
r10 0xc4eb83199e035252
r11 0x114bc7164b73d443
r12 0xffff800000026f50
r13 0
r14 0xffff800020c23040
r15 0x3
rip 0xffffffff815389ba wsmux_do_ioctl+0x6ba
cs 0x8
rflags 0x10297 __ALIGN_SIZE+0xf297
rsp 0xffff800020c22e40
ss 0x10
wsmux_do_ioctl+0x6ba: movq %rax,0x10(%rdx,%r15,8)
ddb{0}> show proc
PROC (syz-executor9909) pid=420318 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=51, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff800020b74260,0xffff800020b75080
process=0xffff800020bcad38 user=0xffff800020c1e000, vmspace=0xfffffd806e90e2d8
estcpu=1, cpticks=4, pctcpu=0.98
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
69030 348331 55491 0 2 0 syz-executor9909
*69030 420318 55491 0 7 0x4000000 syz-executor9909
69030 436165 55491 0 3 0x4000080 fsleep syz-executor9909
32630 358330 49290 0 2 0 syz-executor9909
32630 367158 49290 0 3 0x4000080 fsleep syz-executor9909
32630 468459 49290 0 3 0x4000080 fsleep syz-executor9909
49290 305927 8066 0 3 0x80 nanosleep syz-executor9909
55491 442504 8066 0 3 0x80 nanosleep syz-executor9909
8066 287238 48578 0 3 0x82 nanosleep syz-executor9909
48578 233777 68021 0 3 0x10008a pause ksh
68021 18953 58919 0 3 0x92 select sshd
13705 478653 1 0 3 0x100083 ttyin getty
58919 470461 1 0 3 0x80 select sshd
65885 189643 48888 73 7 0x100090 syslogd
48888 13318 1 0 3 0x100082 netio syslogd
66029 326756 1 77 3 0x100090 poll dhclient
34691 113779 1 0 3 0x80 poll dhclient
81913 99959 0 0 2 0x14200 zerothread
61080 136206 0 0 3 0x14200 aiodoned aiodoned
63388 41938 0 0 3 0x14200 syncer update
71473 105061 0 0 3 0x14200 cleaner cleaner
29525 10284 0 0 3 0x14200 reaper reaper
79326 417329 0 0 3 0x14200 pgdaemon pagedaemon
8239 317961 0 0 3 0x14200 bored crynlk
97430 111889 0 0 3 0x14200 bored crypto
4087 510994 0 0 3 0x40014200 acpi0 acpi0
11957 156260 0 0 3 0x40014200 idle1
79115 437826 0 0 3 0x14200 bored softnet
5909 422232 0 0 3 0x14200 bored systqmp
5492 205634 0 0 3 0x14200 bored systq
91342 417038 0 0 3 0x40014200 bored softclock
85271 421340 0 0 3 0x40014200 idle0
1 105146 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 69030 (syz-executor9909) thread 0xffff800020b74e18 (420318)
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8230c478) locked @ /syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/trap.c:161
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9442 6315K 6323K 78643K 10531 0 0
pcb 23 9K 9K 78643K 55 0 0
rtable 61 2K 2K 78643K 115 0 0
ifaddr 21 7K 7K 78643K 21 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 2K 78643K 13 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1166 73K 73K 78643K 1173 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 1K 78643K 2 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1792 194K 288K 78643K 12592 0 0
file desc 1 0K 0K 78643K 1 0 0
proc 40 38K 46K 78643K 201 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 11 0K 0K 78643K 11 0 0
ether_multi 1 0K 0K 78643K 1 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 18 79K 79K 78643K 18 0 0
exec 0 0K 1K 78643K 149 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 58 3K 3K 78643K 666 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
NDP 3 0K 0K 78643K 3 0 0
temp 30 2347K 2411K 78643K 1690 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 2 0 0 1 0 1 1 0 8 0
inpcbpl 280 22 0 16 1 0 1 1 0 8 0
plimitpl 152 13 0 8 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
syncache 264 5 0 5 1 0 1 1 0 8 1
tcpcb 544 8 0 5 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 96 0 0 6 0 6 6 0 8 0
art_table 32 97 0 0 1 0 1 1 0 8 0
art_node 16 22 0 2 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1385 0 20 45 0 45 45 0 8 0
ffsino 272 1385 0 20 92 0 92 92 0 8 0
nchpl 144 1555 0 30 57 0 57 57 0 8 0
uvmvnodes 72 1394 0 0 26 0 26 26 0 8 0
vnodes 200 1394 0 0 74 0 74 74 0 8 0
namei 1024 3270 0 3270 2 1 1 1 0 8 1
percpumem 16 30 0 0 1 0 1 1 0 8 0
scxspl 192 2367 0 2367 8 2 6 6 0 8 6
sigapl 432 179 0 165 2 0 2 2 0 8 0
futexpl 56 14 0 11 1 0 1 1 0 8 0
knotepl 112 5 0 0 1 0 1 1 0 8 0
kqueuepl 104 1 0 0 1 0 1 1 0 8 0
pipepl 112 114 0 107 2 1 1 1 0 8 0
fdescpl 488 180 0 165 2 0 2 2 0 8 0
filepl 152 814 0 771 2 0 2 2 0 8 0
lockfpl 96 9 0 8 2 1 1 1 0 8 0
lockfspl 24 5 0 4 2 1 1 1 0 8 0
sessionpl 112 17 0 9 1 0 1 1 0 8 0
pgrppl 48 17 0 9 1 0 1 1 0 8 0
ucredpl 96 47 0 40 1 0 1 1 0 8 0
zombiepl 144 165 0 165 2 1 1 1 0 8 1
processpl 840 194 0 165 4 0 4 4 0 8 0
procpl 600 202 0 169 3 0 3 3 0 8 0
sockpl 384 64 0 48 2 0 2 2 0 8 0
mcl4k 4096 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 67 0 0 9 0 9 9 0 8 0
mtagpl 80 1 0 0 1 0 1 1 0 8 0
mbufpl 256 84 0 0 6 0 6 6 0 8 0
bufpl 256 2013 0 261 110 0 110 110 0 8 0
anonpl 16 16993 0 15784 6 1 5 6 0 125 0
amapchunkpl 152 507 0 460 2 0 2 2 0 158 0
amappl16 192 88 0 82 1 0 1 1 0 8 0
amappl15 184 1 0 0 1 0 1 1 0 8 0
amappl14 176 1 0 1 1 1 0 1 0 8 0
amappl13 168 16 0 13 1 0 1 1 0 8 0
amappl12 160 11 0 11 1 1 0 1 0 8 0
amappl11 152 171 0 162 1 0 1 1 0 8 0
amappl10 144 45 0 45 2 1 1 1 0 8 1
amappl9 136 209 0 208 1 0 1 1 0 8 0
amappl8 128 110 0 98 1 0 1 1 0 8 0
amappl7 120 30 0 25 1 0 1 1 0 8 0
amappl6 112 43 0 39 1 0 1 1 0 8 0
amappl5 104 133 0 123 1 0 1 1 0 8 0
amappl4 96 258 0 238 1 0 1 1 0 8 0
amappl3 88 112 0 106 1 0 1 1 0 8 0
amappl2 80 566 0 511 2 0 2 2 0 8 0
amappl1 72 11674 0 11238 15 5 10 15 0 8 0
amappl 72 377 0 350 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 1 0 0 1 0 1 1 0 8 0
uaddrrnd 24 180 0 165 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 180 0 165 1 0 1 1 0 8 0
vmmpekpl 168 5131 0 5111 1 0 1 1 0 8 0
vmmpepl 168 23623 0 22758 53 15 38 43 0 357 0
vmsppl 360 179 0 165 2 0 2 2 0 8 0
pdppl 4096 367 0 330 5 0 5 5 0 8 0
pvpl 32 70358 0 67411 30 4 26 26 0 265 2
pmappl 224 179 0 165 1 0 1 1 0 8 0
extentpl 40 39 0 25 1 0 1 1 0 8 0
phpool 112 238 0 3 7 0 7 7 0 8 0
ddb{0}>