login: uvm_fault(0xffffffff82239020, 0xffff800000970002, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
kernel page fault
uvm_fault(0xffffffff82239020, 0xffff800000970002, 0, 1) -> e
rtable_satoplen(21,ffff80000096ff59) at rtable_satoplen+0x150 sys/net/rtable.c:888
end trace frame: 0xffff800020c29890, count: 0
ddb{0}> trace
rtable_satoplen(21,ffff80000096ff59) at rtable_satoplen+0x150 sys/net/rtable.c:888
rtable_lookup(0,ffff80000096ff09,ffff80000096ff59,ffff80000096ff11,21) at rtable_lookup+0xfd sys/net/rtable.c:391
rtm_output(ffff80000096ff00,ffff800020c29980,ffff800020c29988,21,0) at rtm_output+0x1a7 sys/net/rtsock.c:952
route_output(fffffd806b9b8500,fffffd806f73ac00,0,0) at route_output+0x79b sys/net/rtsock.c:806
route_usrreq(fffffd806f73ac00,9,fffffd806b9b8500,0,0,ffff800020b8b2d8) at route_usrreq+0x35d sys/net/rtsock.c:271
sosend(fffffd806f73ac00,0,ffff800020c29c48,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513
sendit(ffff800020b8b2d8,3,ffff800020c29d08,0,ffff800020c29dd0) at sendit+0x590 sys/kern/uipc_syscalls.c:662
sys_sendto(ffff800020b8b2d8,ffff800020c29de8,ffff800020c29dd0) at sys_sendto+0x92
syscall(ffff800020c29e80) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline]
syscall(ffff800020c29e80) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574
Xsyscall(6,0,ffffffffffffffd8,0,6,e82b879a0d8) at Xsyscall+0x128
end of kernel
end trace frame: 0xe854b156250, count: -10
ddb{0}> show registers
rdi 0
rsi 0xaa
rbp 0xffff800020c297f0
rbx 0xffffffffffffff5a
rdx 0xffff80000096ff5d
rcx 0xffff800000970003
rax 0xffff800000970003
r8 0x21
r9 0x1
r10 0xa52e4aac02df6813
r11 0xada72ae7fd465549
r12 0
r13 0xffff800000970003
r14 0xffffffff821f6ad0 mplsdomain
r15 0x4
rip 0xffffffff81657e70 rtable_satoplen+0x150
cs 0x8
rflags 0x10287 __ALIGN_SIZE+0xf287
rsp 0xffff800020c297a0
ss 0x10
rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d
ddb{0}> show proc
PROC (syz-executor.1) pid=109220 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=50, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020b8b530,0xffffffff823c8d80
process=0xffff800020b7c018 user=0xffff800020c24000, vmspace=0xfffffd807effd438
estcpu=0, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
87275 374462 78432 0 2 0 syz-executor.1
87275 120137 78432 0 3 0x4000080 fsleep syz-executor.1
*87275 109220 78432 0 7 0x4000000 syz-executor.1
57511 181023 67338 0 2 0x2 syz-executor.0
78432 61833 67338 0 3 0x82 nanosleep syz-executor.1
67338 465995 95034 0 3 0x82 kqread syz-execprog
67338 10017 95034 0 3 0x4000082 nanosleep syz-execprog
67338 361246 95034 0 3 0x4000082 thrsleep syz-execprog
67338 132938 95034 0 3 0x4000082 thrsleep syz-execprog
67338 64974 95034 0 3 0x4000082 thrsleep syz-execprog
67338 341388 95034 0 3 0x4000082 thrsleep syz-execprog
67338 97732 95034 0 3 0x4000082 thrsleep syz-execprog
67338 349843 95034 0 3 0x4000082 thrsleep syz-execprog
67338 286084 95034 0 3 0x4000082 thrsleep syz-execprog
95034 73743 87733 0 3 0x10008a pause ksh
87733 297291 25133 0 3 0x92 select sshd
62041 59578 1 0 3 0x100083 ttyin getty
25133 428667 1 0 3 0x80 select sshd
28057 317001 3445 74 3 0x100092 bpf pflogd
3445 330000 1 0 3 0x80 netio pflogd
33769 310516 59352 73 7 0x100090 syslogd
59352 169789 1 0 3 0x100082 netio syslogd
89446 164350 1 77 3 0x100090 poll dhclient
13329 519883 1 0 3 0x80 poll dhclient
31541 146333 0 0 3 0x14200 pgzero zerothread
86089 399325 0 0 3 0x14200 aiodoned aiodoned
75377 370726 0 0 3 0x14200 syncer update
36301 143798 0 0 3 0x14200 cleaner cleaner
30542 278908 0 0 3 0x14200 reaper reaper
7770 377567 0 0 3 0x14200 pgdaemon pagedaemon
39307 507230 0 0 3 0x14200 bored crynlk
26568 314924 0 0 3 0x14200 bored crypto
10111 319614 0 0 3 0x40014200 acpi0 acpi0
29983 219529 0 0 3 0x40014200 idle1
23811 440674 0 0 3 0x14200 bored softnet
10159 5407 0 0 3 0x14200 bored systqmp
20811 213260 0 0 3 0x14200 bored systq
26466 516458 0 0 3 0x40014200 bored softclock
42308 383358 0 0 3 0x40014200 idle0
25649 3910 0 0 3 0x14200 bored smr
1 291544 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 87275 (syz-executor.1) thread 0xffff800020b8b2d8 (109220)
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82360b08) locked @ /syzkaller/managers/multicore/kernel/sys/scsi/scsi_base.c:256
#0 witness_lock+0x594 sys/kern/subr_witness.c:1201
#1 solock+0x7e sys/kern/uipc_socket2.c:292
#2 sosend+0x586 sys/kern/uipc_socket.c:501
#3 sendit+0x590 sys/kern/uipc_syscalls.c:662
#4 sys_sendto+0x92
#5 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline]
#5 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574
#6 Xsyscall+0x128
Process 57511 (syz-executor.0) thread 0xffff800020b04e18 (181023)
exclusive rrwlock inode r = 0 (0xfffffd806cf984e0) 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 vget+0x1c3 sys/kern/vfs_subr.c:672
#6 ufs_ihashget+0x151 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x84 sys/ufs/ffs/ffs_vfsops.c:1323
#8 ufs_lookup+0x15d3 sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x67 sys/kern/vfs_vops.c:90
#10 vfs_lookup+0x556 sys/kern/vfs_lookup.c:523
#11 namei+0x4b2 sys/kern/vfs_lookup.c:224
#12 dounlinkat+0xa5 sys/kern/vfs_syscalls.c:1673
#13 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline]
#13 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806cf983d0) 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 dounlinkat+0xa5 sys/kern/vfs_syscalls.c:1673
#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
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9460 6387K 6387K 78643K 10547 0 0
pcb 27 9K 9K 78643K 105 0 0
rtable 98 3K 3K 78643K 225 0 0
ifaddr 38 10K 10K 78643K 39 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1469 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1167 73K 73K 78643K 1172 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 1808 196K 290K 78643K 12628 0 0
file desc 5 13K 25K 78643K 42 0 0
proc 52 50K 83K 78643K 319 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 33 2K 2K 78643K 33 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 195 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 74 20K 20K 78643K 991 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 10 0K 0K 78643K 10 0 0
temp 95 2372K 2436K 78643K 3211 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 4 0 0 1 0 1 1 0 8 0
inpcbpl 280 80 0 73 1 0 1 1 0 8 0
plimitpl 152 16 0 8 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtentry 112 41 0 1 2 0 2 2 0 8 0
syncache 264 5 0 5 2 1 1 1 0 8 1
tcpcb 544 55 0 51 1 0 1 1 0 8 0
nd6 48 4 0 0 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 12 0 6 2 1 1 1 0 8 0
pfstkey 112 12 0 6 2 1 1 1 0 8 0
pfstate 328 12 0 6 2 1 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 256 184 0 0 12 0 12 12 0 8 0
art_table 32 185 0 0 2 0 2 2 0 8 0
art_node 16 40 0 6 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1461 0 43 46 0 46 46 0 8 0
ffsino 272 1461 0 43 95 0 95 95 0 8 0
nchpl 144 1760 0 127 61 0 61 61 0 8 0
uvmvnodes 72 1471 0 0 27 0 27 27 0 8 0
vnodes 200 1471 0 0 78 0 78 78 0 8 0
namei 1024 4431 0 4431 3 2 1 1 0 8 1
percpumem 16 30 0 0 1 0 1 1 0 8 0
scxspl 192 4034 0 4034 49 48 1 6 0 8 1
sigapl 432 245 0 230 3 0 3 3 0 8 1
futexpl 56 358 0 357 1 0 1 1 0 8 0
knotepl 112 45 0 28 1 0 1 1 0 8 0
kqueuepl 104 2 0 0 1 0 1 1 0 8 0
pipepl 112 252 0 233 3 2 1 1 0 8 0
fdescpl 488 246 0 230 3 0 3 3 0 8 0
filepl 152 1386 0 1317 3 0 3 3 0 8 0
lockfpl 104 6 0 6 1 1 0 1 0 8 0
lockfspl 32 3 0 3 1 1 0 1 0 8 0
sessionpl 112 20 0 9 1 0 1 1 0 8 0
pgrppl 48 20 0 9 1 0 1 1 0 8 0
ucredpl 96 52 0 43 1 0 1 1 0 8 0
zombiepl 144 230 0 230 3 2 1 1 0 8 1
processpl 840 261 0 230 4 0 4 4 0 8 0
procpl 600 335 0 294 4 0 4 4 0 8 0
sockpl 384 172 0 151 3 0 3 3 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 56 0 0 7 0 7 7 0 8 0
mtagpl 80 1 0 0 1 0 1 1 0 8 0
mbufpl 256 199 0 0 12 0 12 12 0 8 0
bufpl 256 5371 0 1143 265 0 265 265 0 8 0
anonpl 16 23360 0 21679 16 3 13 13 0 125 6
amapchunkpl 152 881 0 811 5 0 5 5 0 158 1
amappl16 192 172 0 137 2 0 2 2 0 8 0
amappl15 184 72 0 66 1 0 1 1 0 8 0
amappl14 176 28 0 25 3 2 1 1 0 8 0
amappl13 168 31 0 27 1 0 1 1 0 8 0
amappl12 160 9 0 7 2 1 1 1 0 8 0
amappl11 152 54 0 35 1 0 1 1 0 8 0
amappl10 144 72 0 69 1 0 1 1 0 8 0
amappl9 136 425 0 420 1 0 1 1 0 8 0
amappl8 128 129 0 118 1 0 1 1 0 8 0
amappl7 120 28 0 26 1 0 1 1 0 8 0
amappl6 112 84 0 76 1 0 1 1 0 8 0
amappl5 104 127 0 114 1 0 1 1 0 8 0
amappl4 96 488 0 464 2 0 2 2 0 8 1
amappl3 88 123 0 117 1 0 1 1 0 8 0
amappl2 80 956 0 902 2 0 2 2 0 8 0
amappl1 72 15033 0 14589 26 8 18 20 0 8 8
amappl 72 579 0 546 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 24 246 0 230 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 246 0 230 1 0 1 1 0 8 0
vmmpekpl 168 6789 0 6765 2 0 2 2 0 8 0
vmmpepl 168 32117 0 31148 91 17 74 74 0 357 31
vmsppl 360 245 0 230 2 0 2 2 0 8 0
pdppl 4096 500 0 460 6 0 6 6 0 8 0
pvpl 32 113446 0 109159 111 9 102 102 0 265 67
pmappl 224 245 0 230 2 0 2 2 0 8 1
extentpl 40 39 0 25 1 0 1 1 0 8 0
phpool 112 410 0 5 12 0 12 12 0 8 0