panic: kernel diagnostic assertion "sin6tosa(&ro->ro_dst)->sa_family == AF_INET6" failed: file "/syzkaller/managers/setuid/kernel/sys/netinet6/in6_src.c", line 328
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*441624 93342 32767 0x10 0 1 syz-executor3992266023
352037 67085 0 0x14000 0x200 0 softnet0
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82873283) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff828f938f,ffffffff82868107,148,ffffffff829481fe) at __assert+0x29 sys/kern/subr_prf.c:157
in6_selectroute(ffff80002a1f01b0,ffff8000006d0680,fffffd80794b3368,0) at in6_selectroute+0x228 sys/netinet6/in6_src.c:328
ip6_output(fffffd806d4b5f00,ffff8000006d0680,fffffd80794b3368,0,0,fffffd80794b3428) at ip6_output+0xc6a sys/netinet6/ip6_output.c:467
tcp_output(ffff800000dac328) at tcp_output+0x2877 sys/netinet/tcp_output.c:1110
tcp_connect(fffffd80794c6b78,fffffd806d235800) at tcp_connect+0x33a sys/netinet/tcp_usrreq.c:670
sys_connect(ffff80002a199ab0,ffff80002a1f0650,ffff80002a1f05a0) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422
syscall(ffff80002a1f0650) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002a1f0650) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ec5994aa6d0, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: kernel diagnostic assertion "sin6tosa(&ro->ro_dst)->sa_family == AF_INET6" failed: file "/syzkaller/managers/setuid/kernel/sys/netinet6/in6_src.c", line 328
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82873283) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff828f938f,ffffffff82868107,148,ffffffff829481fe) at __assert+0x29 sys/kern/subr_prf.c:157
in6_selectroute(ffff80002a1f01b0,ffff8000006d0680,fffffd80794b3368,0) at in6_selectroute+0x228 sys/netinet6/in6_src.c:328
ip6_output(fffffd806d4b5f00,ffff8000006d0680,fffffd80794b3368,0,0,fffffd80794b3428) at ip6_output+0xc6a sys/netinet6/ip6_output.c:467
tcp_output(ffff800000dac328) at tcp_output+0x2877 sys/netinet/tcp_output.c:1110
tcp_connect(fffffd80794c6b78,fffffd806d235800) at tcp_connect+0x33a sys/netinet/tcp_usrreq.c:670
sys_connect(ffff80002a199ab0,ffff80002a1f0650,ffff80002a1f05a0) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422
syscall(ffff80002a1f0650) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002a1f0650) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ec5994aa6d0, count: -10
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a1efff0
rbx 0xffff800029cfcca7
rdx 0x3fd
rcx 0
rax 0xa4
r8 0x101010101010101
r9 0x8080808080808080
r10 0x3e315a30f8af0776
r11 0xbe0991c4591d89d8
r12 0xffff800029cfcaa8
r13 0
r14 0
r15 0x1
rip 0xffffffff81182e1c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002a1effe0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor3992266023) tid=441624 pid=93342 tcnt=1 stat=onproc
flags process=10<SUGID> proc=0
runpri=52, usrpri=52, slppri=24, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a19a000,0xffffffff82e83cf0
process=0xffff8000ffff4480 user=0xffff80002a1eb000, vmspace=0xfffffd8008b56000
estcpu=2, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*93342 441624 77309 32767 7 0x10 syz-executor3992266023
77309 277399 26466 0 3 0x82 wait syz-executor3992266023
26466 359260 67540 0 3 0x10008a sigsusp ksh
67540 257721 1212 0 2 0x12 sshd
87385 76660 1 0 3 0x100083 ttyin getty
1212 410294 1 0 3 0x88 kqread sshd
82481 7285 86616 73 3 0x1100090 kqread syslogd
86616 58895 1 0 3 0x100082 netio syslogd
15613 288398 1 0 3 0x100080 kqread resolvd
13976 194289 10587 77 3 0x100092 kqread dhcpleased
32761 244668 10587 77 3 0x100092 kqread dhcpleased
10587 223087 1 0 3 0x80 kqread dhcpleased
10786 290873 0 0 3 0x14200 bored smr
50513 459192 0 0 2 0x14200 zerothread
89239 229071 0 0 3 0x14200 aiodoned aiodoned
35637 444117 0 0 3 0x14200 syncer update
10383 224185 0 0 3 0x14200 cleaner cleaner
52117 373079 0 0 3 0x14200 reaper reaper
22263 397064 0 0 3 0x14200 pgdaemon pagedaemon
67686 495795 0 0 3 0x14200 bored viomb
24054 512700 0 0 3 0x40014200 acpi0 acpi0
66346 482527 0 0 3 0x40014200 idle1
81664 88985 0 0 3 0x14200 bored softnet3
65192 69200 0 0 3 0x14200 bored softnet2
82765 492399 0 0 3 0x14200 bored softnet1
67085 352037 0 0 7 0x14200 softnet0
12032 14494 0 0 3 0x14200 bored systqmp
67727 364539 0 0 3 0x14200 bored systq
4649 275705 0 0 3 0x14200 tmoslp softclockmp
41809 510536 0 0 3 0x40014200 tmoslp softclock
26167 24656 0 0 3 0x40014200 idle0
1 296748 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 93342 (syz-executor3992266023) thread 0xffff80002a199ab0 (441624)
exclusive rwlock netlock r = 0 (0xffffffff82d02410)
#0 witness_lock+0x447
#1 sys_connect+0x1be isdnssocket sys/kern/uipc_syscalls.c:127 [inline]
#1 sys_connect+0x1be sys/kern/uipc_syscalls.c:413
#2 syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline]
#2 syscall+0x5ae sys/arch/amd64/amd64/trap.c:577
#3 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10149 6388K 6419K 166960K 11227 0
pcb 15 10K 10K 166960K 15 0
rtable 58 1K 2K 166960K 110 0
pf 12 6K 6K 166960K 12 0
ifaddr 12 9K 9K 166960K 12 0
ifgroup 17 1K 1K 166960K 17 0
counters 48 34K 34K 166960K 48 0
ioctlops 0 0K 2K 166960K 21 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1174 73K 74K 166960K 1187 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 1K 166960K 2 0
VM map 2 1K 1K 166960K 2 0
sem 2 0K 0K 166960K 2 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 1 0K 0K 166960K 1 0
proc 56 78K 79K 166960K 247 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
in_multi 11 0K 0K 166960K 11 0
ether_multi 1 0K 0K 166960K 1 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 25 122K 122K 166960K 25 0
exec 0 0K 1K 166960K 243 0
tdb 3 0K 0K 166960K 3 0
pagedep 1 8K 8K 166960K 1 0
inodedep 1 32K 32K 166960K 1 0
newblk 1 0K 0K 166960K 1 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 91 12K 12K 166960K 2410 0
UVM aobj 3 2K 2K 166960K 3 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 0K 166960K 2 0
NDP 3 0K 0K 166960K 3 0
temp 1 6696K 6760K 166960K 2852 0
kqueue 11 16K 18K 166960K 24 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> 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 20 0 17 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 144 33 0 20 1 0 1 1 0 8 0
syncache 320 5 0 5 1 0 1 1 0 8 1
tcpqe 32 60 0 60 1 1 0 1 0 8 0
tcpcb 808 10 0 5 1 0 1 1 0 8 0
arp 120 2 0 0 1 0 1 1 0 8 0
inpcb 376 28 0 21 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
dino2pl 256 1422 0 37 87 0 87 87 0 8 0
ffsino 272 1422 0 37 93 0 93 93 0 8 0
nchpl 144 1606 0 47 58 0 58 58 0 8 0
uvmvnodes 80 1431 0 0 30 0 30 30 0 8 0
vnodes 216 1431 0 0 80 0 80 80 0 8 0
namei 1024 4258 0 4258 1 0 1 1 0 8 1
percpumem 16 38 0 0 1 0 1 1 0 8 0
kstatmem 264 6 0 0 1 0 1 1 0 8 0
scxspl 216 5039 0 5039 3 1 2 2 1 8 2
plimitpl 152 17 0 10 1 0 1 1 0 8 0
sigapl 424 311 0 279 4 0 4 4 0 8 0
knotepl 120 43 0 0 2 0 2 2 0 8 0
kqueuepl 216 20 0 13 1 0 1 1 0 8 0
pipepl 320 87 0 84 1 0 1 1 0 8 0
fdescpl 496 293 0 279 3 1 2 3 0 8 0
filepl 152 1129 0 1075 3 0 3 3 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 18 0 9 1 0 1 1 0 8 0
pgrppl 48 18 0 9 1 0 1 1 0 8 0
ucredpl 104 69 0 58 1 0 1 1 0 8 0
zombiepl 144 279 0 279 1 0 1 1 0 8 1
processpl 1136 311 0 279 3 0 3 3 0 8 0
procpl 680 311 0 279 3 0 3 3 0 8 0
sockpl 488 81 0 58 3 0 3 3 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k 2048 244 0 0 31 0 31 31 0 8 0
mtagpl 96 2 0 0 1 0 1 1 0 8 0
mbufpl 256 244 0 0 17 1 16 16 0 8 0
bufpl 288 2435 0 86 168 0 168 168 0 8 0
anonpl 24 153962 0 152103 24 2 22 23 0 186 10
amapchunkpl 152 8334 0 8187 7 0 7 7 0 158 1
amappl16 200 3691 0 3690 5 1 4 5 0 8 3
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 100 0 91 1 0 1 1 0 8 0
amappl13 176 12 0 12 1 1 0 1 0 8 0
amappl12 168 812 0 798 1 0 1 1 0 8 0
amappl11 160 53 0 43 1 0 1 1 0 8 0
amappl10 152 16 0 16 1 0 1 1 0 8 1
amappl9 144 88 0 88 1 0 1 1 0 8 1
amappl8 136 40 0 38 1 0 1 1 0 8 0
amappl7 128 80 0 70 1 0 1 1 0 8 0
amappl6 120 111 0 106 1 0 1 1 0 8 0
amappl5 112 101 0 91 1 0 1 1 0 8 0
amappl4 104 320 0 301 1 0 1 1 0 8 0
amappl3 96 2411 0 2377 1 0 1 1 0 8 0
amappl2 88 596 0 545 2 0 2 2 0 8 0
amappl1 80 8738 0 8314 11 0 11 11 0 8 1
amappl 88 2141 0 2088 2 0 2 2 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 24 293 0 279 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 293 0 279 1 0 1 1 0 8 0
vmmpekpl 168 6872 0 6856 1 0 1 1 0 8 0
vmmpepl 168 32537 0 31602 46 1 45 46 0 357 3
vmsppl 448 292 0 279 2 0 2 2 0 8 0
rwobjpl 56 17041 0 14989 32 2 30 31 0 8 0
pdppl 4096 593 0 558 51 16 35 41 0 8 0
pvpl 32 6311 0 0 51 0 51 51 0 265 0
pmappl 248 292 0 279 2 1 1 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 469 0 19 13 0 13 13 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82d38ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 sys/kern/kern_lock.c:147
if_qstart_compat(ffff8000001a0550) at if_qstart_compat+0x1e sys/net/if.c:716
ifq_serialize(ffff8000001a0550,ffff8000001a0678) at ifq_serialize+0x16e sys/net/ifq.c:113
taskq_thread(ffff80000002c000) at taskq_thread+0xe5 sys/kern/kern_task.c:450
end trace frame: 0x0, count: 5
ddb{0}> trace
x86_ipi_db(ffffffff82d38ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82de4340) at __mp_lock+0x122 sys/kern/kern_lock.c:147
if_qstart_compat(ffff8000001a0550) at if_qstart_compat+0x1e sys/net/if.c:716
ifq_serialize(ffff8000001a0550,ffff8000001a0678) at ifq_serialize+0x16e sys/net/ifq.c:113
taskq_thread(ffff80000002c000) at taskq_thread+0xe5 sys/kern/kern_task.c:450
end trace frame: 0x0, count: -10
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x1c: addq $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82873283) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff828f938f,ffffffff82868107,148,ffffffff829481fe) at __assert+0x29 sys/kern/subr_prf.c:157
in6_selectroute(ffff80002a1f01b0,ffff8000006d0680,fffffd80794b3368,0) at in6_selectroute+0x228 sys/netinet6/in6_src.c:328
ip6_output(fffffd806d4b5f00,ffff8000006d0680,fffffd80794b3368,0,0,fffffd80794b3428) at ip6_output+0xc6a sys/netinet6/ip6_output.c:467
tcp_output(ffff800000dac328) at tcp_output+0x2877 sys/netinet/tcp_output.c:1110
tcp_connect(fffffd80794c6b78,fffffd806d235800) at tcp_connect+0x33a sys/netinet/tcp_usrreq.c:670
sys_connect(ffff80002a199ab0,ffff80002a1f0650,ffff80002a1f05a0) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422
syscall(ffff80002a1f0650) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002a1f0650) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ec5994aa6d0, count: 5
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82873283) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff828f938f,ffffffff82868107,148,ffffffff829481fe) at __assert+0x29 sys/kern/subr_prf.c:157
in6_selectroute(ffff80002a1f01b0,ffff8000006d0680,fffffd80794b3368,0) at in6_selectroute+0x228 sys/netinet6/in6_src.c:328
ip6_output(fffffd806d4b5f00,ffff8000006d0680,fffffd80794b3368,0,0,fffffd80794b3428) at ip6_output+0xc6a sys/netinet6/ip6_output.c:467
tcp_output(ffff800000dac328) at tcp_output+0x2877 sys/netinet/tcp_output.c:1110
tcp_connect(fffffd80794c6b78,fffffd806d235800) at tcp_connect+0x33a sys/netinet/tcp_usrreq.c:670
sys_connect(ffff80002a199ab0,ffff80002a1f0650,ffff80002a1f05a0) at sys_connect+0x207 sys/kern/uipc_syscalls.c:422
syscall(ffff80002a1f0650) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002a1f0650) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ec5994aa6d0, count: -10
ddb{1}>