uvm_fault(0xffffffff827ec0f0, 0xffffffff0000000b, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel page fault
uvm_fault(0xffffffff827ec0f0, 0xffffffff0000000b, 0, 1) -> e
in_delmulti(fffffffeffffffff) at in_delmulti+0x8d sys/netinet/in.c:914
end trace frame: 0xffff80001e78b1f0, count: 0
ddb> trace
in_delmulti(fffffffeffffffff) at in_delmulti+0x8d sys/netinet/in.c:914
in_purgeaddr(ffff800000b26000) at in_purgeaddr+0x156 sys/netinet/in.c:760
in_ifdetach(ffff800000b21800) at in_ifdetach+0x74 sys/netinet/in.c:971
if_detach(ffff800000b21800) at if_detach+0x140 sys/net/if.c:1039
tun_clone_destroy(ffff800000b21800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:326
tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:477
spec_close(ffff80001e78b3d0) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd80664ebd00,7,fffffd806c3bf900,ffff80001e7beec0) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd8057571e20,ffff80001e7beec0) at vn_closefile+0xd2 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd8057571e20,ffff80001e7beec0) at vn_closefile+0xd2 sys/kern/vfs_vnops.c:614
fdrop(fffffd8057571e20,ffff80001e7beec0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd8057571e20,ffff80001e7beec0) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff80001e7beec0) at fdfree+0x100 sys/kern/kern_descrip.c:1195
exit1(ffff80001e7beec0,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff80001e7beec0,19) at postsig+0x4b2 sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff80001e7beec0,19) at postsig+0x4b2 sys/kern/kern_sig.c:1415
userret(ffff80001e7beec0) at userret+0x159 sys/kern/kern_sig.c:1872
syscall(ffff80001e78b850) at syscall+0x42e mi_syscall_return sys/sys/syscall_mi.h:129 [inline]
syscall(ffff80001e78b850) at syscall+0x42e sys/arch/amd64/amd64/trap.c:592
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffda650, count: -17
ddb> show registers
rdi 0x2
rsi 0
rbp 0xffff80001e78b1a0
rbx 0
rdx 0x3
rcx 0x1
rax 0
r8 0xffffffff815fff63 rt_ifa_purge+0x153
r9 0x5
r10 0x1573e4a12da1abf8
r11 0xe6b6fca3548783ba
r12 0
r13 0x3
r14 0xfffffffeffffffff
r15 0x1
rip 0xffffffff819a982d in_delmulti+0x8d
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80001e78b140
ss 0x10
in_delmulti+0x8d: movl 0xc(%r14),%r15d
ddb> show proc
PROC (syz-executor.1) pid=325747 stat=onproc
flags process=a<EXEC,EXITING,8ORPHAN> proc=2000<WEXIT>
pri=32, usrpri=59, nice=20
forw=0xffffffffffffffff, list=0xffff80001e7be770,0xffff80001e7be030
process=0xffff80001e7a83d0 user=0xffff80001e786000, vmspace=0xfffffd80573febc0
estcpu=9, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
66393 318499 44372 0 2 0 syz-executor.0
66393 325260 44372 0 2 0x4000000 syz-executor.0
72801 191682 0 0 3 0x14280 nfsidl nfsio
22082 251073 0 0 3 0x14280 nfsidl nfsio
82288 28791 0 0 3 0x14280 nfsidl nfsio
12176 367955 0 0 3 0x14280 nfsidl nfsio
51135 329951 0 0 3 0x14280 nfsidl nfsio
42103 58936 0 0 3 0x14280 nfsidl nfsio
21646 197029 0 0 3 0x14280 nfsidl nfsio
44584 428647 0 0 3 0x14280 nfsidl nfsio
18986 92941 0 0 3 0x14280 nfsidl nfsio
67254 294905 0 0 3 0x14280 nfsidl nfsio
71469 406683 0 0 3 0x14280 nfsidl nfsio
32195 131609 0 0 3 0x14280 nfsidl nfsio
12366 68199 0 0 3 0x14280 nfsidl nfsio
4531 370779 0 0 3 0x14280 nfsidl nfsio
92561 493804 0 0 3 0x14280 nfsidl nfsio
60435 269325 0 0 3 0x14280 nfsidl nfsio
38083 309714 0 0 3 0x14280 nfsidl nfsio
91355 515958 0 0 3 0x14280 nfsidl nfsio
53975 228984 0 0 3 0x14280 nfsidl nfsio
16842 498741 0 0 3 0x14280 nfsidl nfsio
80123 431048 0 0 3 0x14200 bored sosplice
44372 163781 22480 0 2 0x482 syz-executor.0
22480 295838 38562 0 3 0x82 thrsleep syz-fuzzer
22480 18595 38562 0 2 0x4000002 syz-fuzzer
22480 318318 38562 0 2 0x4000002 syz-fuzzer
22480 410523 38562 0 3 0x4000082 thrsleep syz-fuzzer
22480 220377 38562 0 3 0x4000082 kqread syz-fuzzer
22480 110909 38562 0 3 0x4000082 thrsleep syz-fuzzer
22480 107397 38562 0 3 0x4000082 thrsleep syz-fuzzer
22480 385798 38562 0 3 0x4000082 thrsleep syz-fuzzer
38562 195140 72040 0 3 0x10008a pause ksh
72040 429764 1682 0 3 0x92 select sshd
11197 388727 1 0 3 0x100083 ttyin getty
1682 367331 1 0 3 0x80 select sshd
27326 469618 26897 73 2 0x100490 syslogd
26897 472099 1 0 3 0x100082 netio syslogd
65652 24235 1 77 2 0x100090 dhclient
84328 476282 1 0 3 0x80 poll dhclient
16986 439562 0 0 3 0x14200 bored smr
41377 492665 0 0 2 0x14200 zerothread
15839 269474 0 0 3 0x14200 aiodoned aiodoned
79275 347880 0 0 2 0x14200 update
87732 394030 0 0 3 0x14200 cleaner cleaner
90204 264284 0 0 3 0x14200 reaper reaper
4967 42668 0 0 3 0x14200 pgdaemon pagedaemon
70507 163848 0 0 3 0x14200 bored crynlk
36280 464434 0 0 3 0x14200 bored crypto
76175 125166 0 0 3 0x40014200 acpi0 acpi0
92807 311485 0 0 2 0x14200 softnet
23401 81772 0 0 2 0x14200 systqmp
67178 421609 0 0 3 0x14200 bored systq
77837 288738 0 0 2 0x40014200 softclock
24037 346975 0 0 3 0x40014200 idle0
1 400780 0 0 3 0x82 wait init
0 0 -1 0 2 0x10200 swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9511 6363K 7962K 78643K 13848 0
pcb 13 8K 8K 78643K 103 0
rtable 101 7K 10K 78643K 680 0
ifaddr 89 17K 19K 78643K 253 0
sysctl 2 0K 0K 78643K 2 0
counters 21 16K 17K 78643K 36 0
ioctlops 0 0K 4K 78643K 150 0
iov 0 0K 16K 78643K 111 0
mount 1 1K 1K 78643K 1 0
vnodes 1221 77K 77K 78643K 2063 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 17 0
VM map 2 0K 0K 78643K 2 0
sem 12 0K 0K 78643K 197 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 195K 288K 78643K 12938 0
file desc 5 13K 25K 78643K 852 0
sigio 0 0K 0K 78643K 12 0
proc 51 38K 55K 78643K 454 0
subproc 23 1K 2K 78643K 51 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 68 0
in_multi 75 3K 4K 78643K 188 0
ether_multi 1 0K 0K 78643K 20 0
mrt 0 0K 0K 78643K 7 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 55 254K 254K 78643K 55 0
exec 0 0K 1K 78643K 247 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 152 121K 122K 78643K 2823 0
UVM aobj 63 2K 3K 78643K 67 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 87 0
NDP 13 0K 0K 78643K 46 0
temp 136 3864K 3928K 78643K 22440 0
kqueue 5 8K 16K 78643K 32 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
arp 64 9 0 5 1 0 1 1 0 8 0
rtpcb 80 69 0 67 1 0 1 1 0 8 0
rtentry 112 99 0 67 2 0 2 2 0 8 0
unpcb 120 537 0 529 1 0 1 1 0 8 0
syncache 264 15 0 15 4 4 0 1 0 8 0
tcpcb 544 217 0 211 5 3 2 2 0 8 1
ipq 40 4 0 3 1 0 1 1 0 8 0
ipqe 40 94 0 93 1 0 1 1 0 8 0
inpcb 296 1252 0 1245 8 6 2 2 0 8 1
rttmr 72 2 0 2 2 1 1 1 0 8 1
nd6 48 25 0 19 1 0 1 1 0 8 0
ppxss 1136 1 0 1 1 1 0 1 0 8 0
pfrktable 1344 113 0 105 5 3 2 2 0 8 1
pftag 88 18 0 16 1 0 1 1 0 8 0
pfrule 1360 40 0 25 2 0 2 2 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 446 0 268 15 2 13 13 0 8 0
art_table 32 448 0 268 2 0 2 2 0 8 0
art_node 16 98 0 67 1 0 1 1 0 8 0
sysvmsgpl 40 26 0 14 1 0 1 1 0 8 0
semupl 112 2 0 2 2 2 0 1 0 8 0
semapl 112 194 0 184 2 1 1 1 0 8 0
shmpl 112 64 0 4 2 0 2 2 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 2490 0 1094 88 0 88 88 0 8 0
ffsino 240 2490 0 1094 83 0 83 83 0 8 0
nchpl 144 3839 0 2249 60 0 60 60 0 8 0
uvmvnodes 72 3268 0 0 60 0 60 60 0 8 0
vnodes 208 3268 0 0 172 0 172 172 0 8 0
namei 1024 11333 0 11333 2 1 1 1 0 8 1
vcpupl 1984 11 0 0 2 0 2 2 0 8 0
vmpool 528 15 0 4 1 0 1 1 0 8 0
pfiaddrpl 120 38 0 34 1 0 1 1 0 8 0
scsiplug 64 2 0 2 2 2 0 1 0 8 0
scxspl 192 11733 0 11733 2 1 1 1 0 8 1
plimitpl 152 65 0 58 1 0 1 1 0 8 0
sigapl 424 1056 0 1007 6 0 6 6 0 8 0
futexpl 56 17968 0 17968 2 1 1 1 0 8 1
knotepl 112 115 0 98 1 0 1 1 0 8 0
kqueuepl 144 90 0 84 1 0 1 1 0 8 0
pipepl 272 208 0 199 2 0 2 2 0 8 1
fdescpl 432 1021 0 1007 2 0 2 2 0 8 0
filepl 120 6642 0 6557 4 0 4 4 0 8 1
lockfpl 104 233 0 232 1 0 1 1 0 8 0
lockfspl 48 80 0 79 1 0 1 1 0 8 0
sessionpl 112 18 0 8 1 0 1 1 0 8 0
pgrppl 48 32 0 22 1 0 1 1 0 8 0
ucredpl 96 1041 0 1034 1 0 1 1 0 8 0
zombiepl 144 1008 0 1007 2 1 1 1 0 8 0
processpl 928 1056 0 1007 7 0 7 7 0 8 0
procpl 624 2033 0 1976 5 0 5 5 0 8 0
sosppl 128 7 0 7 3 3 0 1 0 8 0
sockpl 400 1871 0 1854 7 4 3 4 0 8 1
mcl64k 65536 528 0 272 62 30 32 32 0 8 0
mcl16k 16384 8 0 8 5 4 1 1 0 8 1
mcl12k 12288 23 0 23 7 6 1 1 0 8 1
mcl9k 9216 12 0 12 6 5 1 1 0 8 1
mcl8k 8192 36 0 36 5 4 1 1 0 8 1
mcl4k 4096 109 0 109 4 3 1 1 0 8 1
mcl2k2 2112 6 0 6 5 5 0 1 0 8 0
mcl2k 2048 97830 0 97774 14 6 8 12 0 8 0
mtagpl 96 464 0 249 9 1 8 8 0 8 0
mbufpl 256 161172 0 160368 74 20 54 57 0 8 3
bufpl 280 5670 0 318 383 0 383 383 0 8 0
anonpl 16 144781 0 123885 128 43 85 88 0 107 1
amapchunkpl 152 5129 0 4979 31 22 9 11 0 158 2
amappl16 192 5931 0 4708 92 30 62 62 0 8 0
amappl15 184 1 0 0 1 0 1 1 0 8 0
amappl14 176 228 0 222 1 0 1 1 0 8 0
amappl13 168 35 0 31 1 0 1 1 0 8 0
amappl12 160 224 0 222 1 0 1 1 0 8 0
amappl11 152 252 0 242 1 0 1 1 0 8 0
amappl10 144 15 0 10 1 0 1 1 0 8 0
amappl9 136 746 0 743 1 0 1 1 0 8 0
amappl8 128 763 0 717 2 0 2 2 0 8 0
amappl7 120 114 0 101 1 0 1 1 0 8 0
amappl6 112 223 0 216 1 0 1 1 0 8 0
amappl5 104 1025 0 1013 1 0 1 1 0 8 0
amappl4 96 648 0 616 1 0 1 1 0 8 0
amappl3 88 147 0 142 1 0 1 1 0 8 0
amappl2 80 7306 0 7238 2 0 2 2 0 8 0
amappl1 72 31935 0 31512 24 15 9 17 0 8 0
amappl 80 2270 0 2222 2 0 2 2 0 84 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
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 64 66 0 4 1 0 1 1 0 8 0
uaddrrnd 24 1036 0 1011 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1036 0 1011 1 0 1 1 0 8 0
vmmpekpl 168 9871 0 9837 2 0 2 2 0 8 0
vmmpepl 168 132008 0 129631 178 68 110 131 0 357 6
vmsppl 272 1035 0 1011 3 1 2 2 0 8 0
pdppl 4096 2078 0 2033 7 1 6 6 0 8 0
pvpl 32 350625 0 326373 270 70 200 204 0 265 4
pmappl 200 1035 0 1011 2 0 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 390 0 81 9 0 9 9 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
in_delmulti(fffffffeffffffff) at in_delmulti+0x8d sys/netinet/in.c:914
in_purgeaddr(ffff800000b26000) at in_purgeaddr+0x156 sys/netinet/in.c:760
in_ifdetach(ffff800000b21800) at in_ifdetach+0x74 sys/netinet/in.c:971
if_detach(ffff800000b21800) at if_detach+0x140 sys/net/if.c:1039
tun_clone_destroy(ffff800000b21800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:326
tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:477
spec_close(ffff80001e78b3d0) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd80664ebd00,7,fffffd806c3bf900,ffff80001e7beec0) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd8057571e20,ffff80001e7beec0) at vn_closefile+0xd2 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd8057571e20,ffff80001e7beec0) at vn_closefile+0xd2 sys/kern/vfs_vnops.c:614
fdrop(fffffd8057571e20,ffff80001e7beec0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd8057571e20,ffff80001e7beec0) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff80001e7beec0) at fdfree+0x100 sys/kern/kern_descrip.c:1195
exit1(ffff80001e7beec0,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff80001e7beec0,19) at postsig+0x4b2 sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff80001e7beec0,19) at postsig+0x4b2 sys/kern/kern_sig.c:1415
userret(ffff80001e7beec0) at userret+0x159 sys/kern/kern_sig.c:1872
syscall(ffff80001e78b850) at syscall+0x42e mi_syscall_return sys/sys/syscall_mi.h:129 [inline]
syscall(ffff80001e78b850) at syscall+0x42e sys/arch/amd64/amd64/trap.c:592
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffda650, count: -17
ddb> machine ddbcpu 1
No such command
ddb> trace
in_delmulti(fffffffeffffffff) at in_delmulti+0x8d sys/netinet/in.c:914
in_purgeaddr(ffff800000b26000) at in_purgeaddr+0x156 sys/netinet/in.c:760
in_ifdetach(ffff800000b21800) at in_ifdetach+0x74 sys/netinet/in.c:971
if_detach(ffff800000b21800) at if_detach+0x140 sys/net/if.c:1039
tun_clone_destroy(ffff800000b21800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:326
tun_dev_close(5d01,7) at tun_dev_close+0x160 sys/net/if_tun.c:477
spec_close(ffff80001e78b3d0) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd80664ebd00,7,fffffd806c3bf900,ffff80001e7beec0) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd8057571e20,ffff80001e7beec0) at vn_closefile+0xd2 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd8057571e20,ffff80001e7beec0) at vn_closefile+0xd2 sys/kern/vfs_vnops.c:614
fdrop(fffffd8057571e20,ffff80001e7beec0) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd8057571e20,ffff80001e7beec0) at closef+0x117 sys/kern/kern_descrip.c:1263
fdfree(ffff80001e7beec0) at fdfree+0x100 sys/kern/kern_descrip.c:1195
exit1(ffff80001e7beec0,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff80001e7beec0,19) at postsig+0x4b2 sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff80001e7beec0,19) at postsig+0x4b2 sys/kern/kern_sig.c:1415
userret(ffff80001e7beec0) at userret+0x159 sys/kern/kern_sig.c:1872
syscall(ffff80001e78b850) at syscall+0x42e mi_syscall_return sys/sys/syscall_mi.h:129 [inline]
syscall(ffff80001e78b850) at syscall+0x42e sys/arch/amd64/amd64/trap.c:592
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffda650, count: -17