kernel: protection fault trap, code=0
Stopped at bpfdetach+0x70: movq 0(%r15),%r12
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
bpfdetach(ffff800001456800) at bpfdetach+0x70 sys/net/bpf.c:1769
if_detach(ffff800001456800) at if_detach+0x153 sys/net/if.c:1194
tun_clone_destroy(ffff800001456800) at tun_clone_destroy+0x2d6 sys/net/if_tun.c:346
if_clone_destroy(ffff80003c54dcc0) at if_clone_destroy+0x1d7 sys/net/if.c:1383
ifioctl(ffff80000159ae30,80206979,ffff80003c54dcc0,ffff8000ffffa2a0) at ifioctl+0x5c5
sys_ioctl(ffff8000ffffa2a0,ffff80003c54dea0,ffff80003c54ddf0) at sys_ioctl+0x5c3
syscall(ffff80003c54dea0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c54dea0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8ddf26c24a0, count: -8
ddb{0}> show registers
rdi 0xffff80002ac91000
rsi 0x2f103 acpi_pdirpa+0x1af74
rbp 0xffff80003c54dae0
rbx 0x80206979 __kernel_virt_to_phys+0x206979
rdx 0xffff80002ac91000
rcx 0x2f102 acpi_pdirpa+0x1af73
rax 0xffffffff82a714e9 bpfdetach+0xb9
r8 0xffffffffffffffff
r9 0
r10 0
r11 0x8c4ce04beaddd1ca
r12 0xdead0002deadbeef
r13 0x800
r14 0xffff800001456800
r15 0xdead0002deadbeef
rip 0xffffffff82a714a0 bpfdetach+0x70
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c54dab0
ss 0x10
bpfdetach+0x70: movq 0(%r15),%r12
ddb{0}> show proc
PROC (syz-executor) tid=452169 pid=15556 tcnt=3 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffffb490,0xffff8000ffff79e8
process=0xffff80003c526240 user=0xffff80003c548000, vmspace=0xfffffd806bea8c90
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
27622 468345 75889 0 7 0 syz-executor
27622 202377 75889 0 2 0x4000000 syz-executor
93169 309018 72641 0 3 0x80 nanoslp syz-executor
93169 62881 72641 0 3 0x4000080 fsleep syz-executor
15556 260830 63339 0 2 0 syz-executor
*15556 452169 63339 0 7 0x4000000 syz-executor
15556 29480 63339 0 2 0x4000000 syz-executor
70373 151354 23973 0 2 0 syz-executor
70373 374211 23973 0 3 0x4000080 fifor syz-executor
70373 423415 23973 0 3 0x4000080 fifor syz-executor
70373 516427 23973 0 3 0x4000080 fsleep syz-executor
24880 168526 63829 0 3 0x80 nanoslp syz-executor
24880 27966 63829 0 3 0x4000080 kqread syz-executor
24880 427399 63829 0 3 0x4000080 fsleep syz-executor
26110 37887 0 0 3 0x14200 bored sosplice
14243 181018 30274 0 3 0x82 sbwait sshd-session
34111 325269 0 0 3 0x14280 nfsidl nfsio
50326 115942 0 0 3 0x14280 nfsidl nfsio
47925 412212 0 0 3 0x14280 nfsidl nfsio
53941 148904 0 0 3 0x14280 nfsidl nfsio
8767 288404 0 0 3 0x14280 nfsidl nfsio
99731 336697 0 0 3 0x14280 nfsidl nfsio
80420 402962 0 0 3 0x14280 nfsidl nfsio
56597 97674 0 0 3 0x14280 nfsidl nfsio
97306 425331 0 0 3 0x14280 nfsidl nfsio
51060 69464 0 0 3 0x14280 nfsidl nfsio
62370 124432 0 0 3 0x14280 nfsidl nfsio
84233 460443 0 0 3 0x14280 nfsidl nfsio
5126 516293 0 0 3 0x14280 nfsidl nfsio
1119 148972 0 0 3 0x14280 nfsidl nfsio
96493 349961 0 0 3 0x14280 nfsidl nfsio
35054 372835 0 0 3 0x14280 nfsidl nfsio
49166 492431 0 0 3 0x14280 nfsidl nfsio
33117 503062 0 0 3 0x14280 nfsidl nfsio
49196 220124 0 0 3 0x14280 nfsidl nfsio
85892 31048 0 0 3 0x14280 nfsidl nfsio
48211 110248 75488 0 2 0x2 syz-executor
72641 210497 75488 0 3 0x82 nanoslp syz-executor
23973 207744 75488 0 3 0x82 nanoslp syz-executor
82892 410421 75488 0 3 0x82 nanoslp syz-executor
63829 283867 75488 0 3 0x82 nanoslp syz-executor
55770 442910 75488 0 2 0x3 syz-executor
63339 92774 75488 0 3 0x82 nanoslp syz-executor
75889 165504 75488 0 3 0x82 nanoslp syz-executor
75488 40777 10205 0 2 0x2 syz-executor
10205 52722 54914 0 3 0x10008a sigsusp ksh
54914 138981 20309 0 3 0x98 kqread sshd-session
20309 181004 30274 0 3 0x92 kqread sshd-session
85114 439252 1 0 3 0x100083 ttyin getty
30274 353937 1 0 3 0x88 kqread sshd
5472 329814 64279 74 3 0x1100092 bpf pflogd
64279 197962 1 0 3 0x80 sbwait pflogd
14374 340963 51849 73 3 0x1100090 kqread syslogd
51849 378170 1 0 3 0x100082 sbwait syslogd
26273 245661 1 0 2 0x100001 resolvd
99531 434821 48125 77 2 0x100012 dhcpleased
1866 100332 48125 77 3 0x100092 kqread dhcpleased
48125 372301 1 0 3 0x80 kqread dhcpleased
51758 231104 0 0 3 0x14200 bored smr
37083 323445 0 0 2 0x14200 zerothread
1125 381712 0 0 3 0x14200 aiodoned aiodoned
25326 184884 0 0 3 0x14200 syncer update
77842 157751 0 0 3 0x14200 cleaner cleaner
31423 373543 0 0 3 0x14200 reaper reaper
7942 43242 0 0 3 0x14200 pgdaemon pagedaemon
33539 515284 0 0 3 0x14200 bored viomb
25542 293179 0 0 3 0x40014200 acpi0 acpi0
79253 41845 0 0 3 0x40014200 idle1
78038 93798 0 0 3 0x14200 bored softnet3
42252 242759 0 0 3 0x14200 bored softnet2
25401 153227 0 0 3 0x14200 bored softnet1
48367 54290 0 0 3 0x14200 bored softnet0
62941 20135 0 0 3 0x14200 bored systqmp
74174 168683 0 0 3 0x14200 bored systq
91311 494381 0 0 3 0x14200 tmoslp softclockmp
39670 475071 0 0 3 0x40014200 tmoslp softclock
43707 275824 0 0 3 0x40014200 idle0
1 212327 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 15556 (syz-executor) thread 0xffff8000ffffa2a0 (452169)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838cceb8)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1155
#1 __mp_acquire_count+0x58
#2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441
#3 sleep_finish+0x24f sys/kern/kern_synch.c:414
#4 rw_do_enter_write+0x1de sys/kern/kern_rwlock.c:292
#5 lf_purgelocks+0x2f sys/kern/vfs_lockf.c:731
#6 vgonel+0x497 sys/kern/vfs_subr.c:1224
#7 vop_generic_revoke+0x3e6 sys/kern/vfs_default.c:128
#8 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
#9 vdevgone+0x17b
#10 bpfsdetach+0x140 sys/net/bpf.c:1793
#11 bpfdetach+0xa6
#12 if_detach+0x153 sys/net/if.c:1194
#13 tun_clone_destroy+0x2d6 sys/net/if_tun.c:346
#14 if_clone_destroy+0x1d7 sys/net/if.c:1383
#15 ifioctl+0x5c5
#16 sys_ioctl+0x5c3
#17 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#17 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
#18 Xsyscall+0x128
exclusive rwlock clonelk r = 0 (0xffffffff837bc718)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1155
#1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2 if_clone_destroy+0x67
#3 ifioctl+0x5c5
#4 sys_ioctl+0x5c3
#5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
#6 Xsyscall+0x128
Process 48211 (syz-executor) thread 0xffff8000ffffc528 (110248)
exclusive rrwlock inode r = 0 (0xfffffd806dfcb740)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1155
#1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230
#6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
#8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3111
#10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806c366df8)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1155
#1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3096
#8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10215 11085K 11648K 166960K 12737 0
pcb 17 17K 18K 166960K 195 0
rtable 150 6K 7K 166960K 437 0
pf 31 17K 20K 166960K 93 0
ifaddr 30 5K 7K 166960K 73 0
ifgroup 43 2K 2K 166960K 116 0
sysctl 3 1K 3K 166960K 4 0
counters 58 35K 36K 166960K 120 0
ioctlops 0 0K 4K 166960K 1577 0
iov 0 0K 40K 166960K 41 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1396 88K 88K 166960K 2151 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 10 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 93 0
dirhash 12 2K 2K 166960K 27 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 15 53K 93K 166960K 859 0
sigio 0 0K 0K 166960K 81 0
proc 72 91K 128K 166960K 575 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 217 0
in_multi 55 4K 7K 166960K 121 0
ether_multi 1 0K 0K 166960K 5 0
mrt 1 0K 0K 166960K 4 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 229 1023K 1023K 166960K 229 0
exec 0 0K 1K 166960K 517 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 231 77K 87K 166960K 9926 0
UVM aobj 23 6K 6K 166960K 25 0
pinsyscall 43 86K 103K 166960K 1975 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 33 0
NDP 9 0K 2K 166960K 47 0
temp 63 8640K 8760K 166960K 34717 0
kqueue 15 24K 28K 166960K 149 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 83 0 80 1 0 1 1 0 8 0
rtentry 112 128 0 68 4 0 4 4 0 8 0
unpcb 144 611 0 589 8 6 2 4 0 8 1
syncache 336 10 0 10 2 2 0 1 0 8 0
tcpqe 32 1 0 1 1 1 0 1 0 8 0
tcpcb 808 351 0 344 17 13 4 8 0 8 3
arp 120 21 0 7 1 0 1 1 0 8 0
inpcb 376 1096 0 1085 27 22 5 18 0 8 3
nd6 136 25 0 13 1 0 1 1 0 8 0
pkpcb 40 1 0 1 1 1 0 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1168 19 0 19 2 1 1 1 0 8 1
pppxif 1472 5 0 5 3 2 1 1 0 8 1
pffrag 232 9 0 1 1 0 1 1 0 482 0
pffrnode 88 9 0 1 1 0 1 1 0 8 0
pffrent 40 13 0 5 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfrktable 1344 1 0 0 1 0 1 1 0 8 0
pfstitem 24 74 0 24 1 0 1 1 0 8 0
pfstkey 128 74 0 24 2 0 2 2 0 8 0
pfstate 376 74 0 24 6 0 6 6 0 8 0
pfrule 1344 23 0 16 2 1 1 2 0 8 0
rttmr 136 1 0 0 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 555 0 285 29 6 23 29 0 8 1
art_table 32 556 0 285 4 0 4 4 0 8 0
art_node 16 124 0 74 1 0 1 1 0 8 0
sysvmsgpl 40 12 0 8 1 0 1 1 0 8 0
semapl 112 90 0 80 1 0 1 1 0 8 0
shmpl 112 22 0 2 1 0 1 1 0 8 0
dirhash 1024 27 0 10 3 0 3 3 0 8 0
dino2pl 256 3105 0 1601 95 0 95 95 0 8 0
ffsino 280 3105 0 1601 109 0 109 109 0 8 0
nchpl 144 4356 0 2660 63 0 63 63 0 8 0
rtmask 32 2 0 2 2 1 1 1 0 8 1
uvmvnodes 80 3549 0 0 73 0 73 73 0 8 0
vnodes 216 3549 0 0 198 0 198 198 0 8 0
namei 1024 14457 0 14456 2 1 1 2 0 8 0
percpumem 16 74 0 31 1 0 1 1 0 8 0
kstatmem 264 60 0 42 2 0 2 2 0 8 0
scsiplug 72 2 0 2 2 2 0 1 0 8 0
scxspl 216 12776 0 12776 10 8 2 8 1 8 2
plimitpl 152 214 0 197 1 0 1 1 0 8 0
sigapl 424 1187 0 1117 9 0 9 9 0 8 0
futexpl 64 11355 0 11352 1 0 1 1 0 8 0
knotepl 120 507 0 0 16 0 16 16 0 8 0
kqueuepl 216 238 0 225 1 0 1 1 0 8 0
pipepl 328 254 0 226 8 5 3 8 0 8 0
fdescpl 504 1147 0 1116 5 0 5 5 0 8 0
filepl 152 7609 0 7385 24 13 11 19 0 8 1
lockfpl 104 356 0 354 1 0 1 1 0 8 0
lockfspl 48 87 0 85 1 0 1 1 0 8 0
sessionpl 144 29 0 19 1 0 1 1 0 8 0
pgrppl 48 40 0 22 1 0 1 1 0 8 0
ucredpl 104 1690 0 1677 1 0 1 1 0 8 0
zombiepl 144 1445 0 1444 1 0 1 1 0 8 0
processpl 1168 1187 0 1117 6 0 6 6 0 8 0
procpl 656 2477 0 2398 8 0 8 8 0 8 0
srpgc 96 6 0 6 2 1 1 1 0 8 1
sosppl 168 6 0 6 3 2 1 1 0 8 1
sockpl 688 1801 0 1765 26 19 7 19 0 8 2
mcl64k 65536 3 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 105 0 0 14 1 13 14 0 8 0
mcl2k 2048 33 0 0 4 0 4 4 0 8 0
mtagpl 96 241 0 0 6 0 6 6 0 8 0
mbufpl 256 447 0 0 28 0 28 28 0 8 0
bufpl 280 3879 0 128 268 0 268 268 0 8 0
anonpl 24 170220 0 166675 51 2 49 49 0 184 18
amapchunkpl 152 31809 0 31323 38 2 36 36 0 158 14
amappl16 200 3306 0 3271 21 10 11 15 0 8 8
amappl15 192 8 0 8 2 2 0 1 0 8 0
amappl14 184 144 0 130 1 0 1 1 0 8 0
amappl13 176 6 0 6 2 2 0 1 0 8 0
amappl12 168 1797 0 1766 4 1 3 3 0 8 0
amappl11 160 64 0 50 1 0 1 1 0 8 0
amappl10 152 6 0 6 2 2 0 1 0 8 0
amappl9 144 267 0 267 1 1 0 1 0 8 0
amappl8 136 28 0 25 1 0 1 1 0 8 0
amappl7 128 114 0 101 1 0 1 1 0 8 0
amappl6 120 185 0 180 1 0 1 1 0 8 0
amappl5 112 123 0 113 1 0 1 1 0 8 0
amappl4 104 340 0 323 1 0 1 1 0 8 0
amappl3 96 6322 0 6208 4 0 4 4 0 8 0
amappl2 88 710 0 641 2 0 2 2 0 8 0
amappl1 80 11658 0 11002 16 0 16 16 0 8 0
amappl 88 9474 0 9305 5 0 5 5 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 24 0 2 1 0 1 1 0 8 0
uaddrrnd 24 1147 0 1116 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1147 0 1116 1 0 1 1 0 8 0
vmmpekpl 168 11528 0 11490 3 0 3 3 0 8 0
vmmpepl 168 77414 0 75442 106 5 101 101 0 357 5
vmsppl 456 1146 0 1116 5 0 5 5 0 8 0
rwobjpl 64 26849 0 22238 76 0 76 76 0 8 1
pdppl 4096 2301 0 2232 111 38 73 85 0 8 4
pvpl 32 17617 0 0 145 2 143 143 0 265 0
pmappl 248 1146 0 1116 3 0 3 3 0 8 0
extentpl 40 55 0 38 1 0 1 1 0 8 0
phpool 112 325 0 64 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
bpfdetach(ffff800001456800) at bpfdetach+0x70 sys/net/bpf.c:1769
if_detach(ffff800001456800) at if_detach+0x153 sys/net/if.c:1194
tun_clone_destroy(ffff800001456800) at tun_clone_destroy+0x2d6 sys/net/if_tun.c:346
if_clone_destroy(ffff80003c54dcc0) at if_clone_destroy+0x1d7 sys/net/if.c:1383
ifioctl(ffff80000159ae30,80206979,ffff80003c54dcc0,ffff8000ffffa2a0) at ifioctl+0x5c5
sys_ioctl(ffff8000ffffa2a0,ffff80003c54dea0,ffff80003c54ddf0) at sys_ioctl+0x5c3
syscall(ffff80003c54dea0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c54dea0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8ddf26c24a0, count: -8
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x708f09c53a10, count: -3