kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Sun Jun 7 21:39:52 PDT 2020 OpenBSD/amd64 (ci-openbsd-multicore-1.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. 2020/06/07 21:40:06 parsed 1 programs 2020/06/07 21:40:09 executed programs: 0 2020/06/07 21:40:14 executed programs: 261 login: kernel: integer divide fault trap, code=0 Stopped at pf_get_transaddr+0x298: idivl %r13d,%eax ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace pf_get_transaddr(ffff8000009dca98,ffff800020e27230,ffff800020e270e8,ffff800020e27110) at pf_get_transaddr+0x298 pf_test_rule(ffff800020e27230,ffff800020e27320,ffff800020e27330,ffff800020e27310,ffff800020e272f8,3) at pf_test_rule+0x495 pf_test(18,2,ffff8000009d5000,ffff800020e274b0) at pf_test+0x1a35 ip6_output(fffffd807e9b5500,ffffffff826428e0,0,0,ffff800020e27548,0) at ip6_output+0x1152 mld6_sendpkt(ffff800000a22f80,83,0) at mld6_sendpkt+0x2da mld6_fasttimeo() at mld6_fasttimeo+0x162 pffasttimo(ffffffff826414c0) at pffasttimo+0x85 timeout_run(ffffffff826414c0) at timeout_run+0xc4 softclock_thread(ffff800020e19110) at softclock_thread+0x16a end trace frame: 0x0, count: -9 ddb{0}> show registers rdi 0 rsi 0xfffe __ALIGN_SIZE+0xeffe rbp 0xffff800020e27080 rbx 0 rdx 0 rcx 0xffff __ALIGN_SIZE+0xefff rax 0x82 r8 0xffffffff81877f46 pf_insert_src_node+0x2d6 r9 0x1 r10 0x2 r11 0xfbc099beb0d79726 r12 0x82 r13 0 r14 0xffff800020e27230 r15 0xffff8000009dca98 rip 0xffffffff817d89d8 pf_get_transaddr+0x298 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e27010 ss 0x10 pf_get_transaddr+0x298: idivl %r13d,%eax ddb{0}> show proc PROC (softclock) pid=466435 stat=onproc flags process=14000 proc=40000200 pri=0, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e195f0,0xffff800020e18eb0 process=0xffff800020e1ab88 user=0xffff800020e22000, vmspace=0xffffffff8269be28 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 45448 365535 25069 0 7 0x482 syz-executor.0 96372 434432 25069 0 3 0x82 nanosleep syz-executor.1 25069 507532 22447 0 3 0x82 thrsleep syz-execprog 25069 473902 22447 0 3 0x4000082 nanosleep syz-execprog 25069 146679 22447 0 3 0x4000082 thrsleep syz-execprog 25069 58675 22447 0 3 0x4000082 thrsleep syz-execprog 25069 145670 22447 0 3 0x4000082 thrsleep syz-execprog 25069 298467 22447 0 3 0x4000082 kqread syz-execprog 25069 274410 22447 0 3 0x4000082 thrsleep syz-execprog 25069 316121 22447 0 3 0x4000082 thrsleep syz-execprog 25069 372196 22447 0 3 0x4000082 thrsleep syz-execprog 25069 274401 22447 0 3 0x4000082 nanosleep syz-execprog 25069 93806 22447 0 3 0x4000082 thrsleep syz-execprog 22447 510222 35174 0 3 0x10008a pause ksh 35174 220030 41873 0 3 0x92 select sshd 67170 254277 1 0 3 0x100083 ttyin getty 41873 99014 1 0 3 0x80 select sshd 57800 120709 50290 74 3 0x100092 bpf pflogd 50290 451134 1 0 3 0x80 netio pflogd 52160 204592 49261 73 3 0x100090 kqread syslogd 49261 32383 1 0 3 0x100082 netio syslogd 16987 517094 1 77 3 0x100090 poll dhclient 28086 63858 1 0 3 0x80 poll dhclient 41834 521158 0 0 3 0x14200 bored smr 58013 262456 0 0 2 0x14200 zerothread 80443 132118 0 0 3 0x14200 aiodoned aiodoned 65793 314066 0 0 3 0x14200 syncer update 35494 206201 0 0 3 0x14200 cleaner cleaner 43897 499192 0 0 3 0x14200 reaper reaper 92829 249770 0 0 3 0x14200 pgdaemon pagedaemon 81197 502633 0 0 3 0x14200 bored crynlk 79679 452329 0 0 3 0x14200 bored crypto 50797 266814 0 0 3 0x40014200 acpi0 acpi0 65057 97236 0 0 3 0x40014200 idle1 78151 108578 0 0 3 0x14200 bored softnet 41330 24715 0 0 3 0x14200 bored systqmp 75416 223930 0 0 3 0x14200 bored systq *95743 466435 0 0 7 0x40014200 softclock 52580 21325 0 0 3 0x40014200 idle0 1 93943 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 95743 (softclock) thread 0xffff800020e19110 (466435) exclusive rwlock netlock r = 0 (0xffffffff82509548) #0 witness_lock+0x4c7 #1 mld6_fasttimeo+0x1d #2 pffasttimo+0x85 #3 timeout_run+0xc4 #4 softclock_thread+0x16a #5 proc_trampoline+0x1c shared rwlock timeout r = 0 (0xffffffff8252bfd8) #0 witness_lock+0x4c7 #1 timeout_run+0xb9 #2 softclock_thread+0x16a #3 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff826481a8) #0 witness_lock+0x4c7 #1 __mp_acquire_count+0x51 #2 mi_switch+0x392 #3 sleep_finish+0x113 #4 softclock_thread+0x103 #5 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9471 6398K 6398K 78643K 10564 0 pcb 13 8K 8K 78643K 13 0 rtable 110 4K 5K 78643K 206 0 ifaddr 45 10K 10K 78643K 46 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 8K 78643K 2297 0 mount 1 1K 1K 78643K 1 0 vnodes 1183 74K 75K 78643K 1188 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 453 0 proc 59 63K 83K 78643K 438 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 33 2K 2K 78643K 33 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 1K 78643K 210 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 79 20K 21K 78643K 2178 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 10 0 temp 34 3031K 3095K 78643K 2806 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 1 0 1 0 8 0 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 37 0 31 1 0 1 1 0 8 0 nd6 48 6 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 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfstitem 24 12 0 0 1 0 1 1 0 8 0 pfstkey 112 12 0 0 1 0 1 1 0 8 0 pfstate 328 12 0 0 1 0 1 1 0 8 0 pfsrctr 152 1 0 0 1 0 1 1 0 8 0 pfrule 1360 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1846 0 439 88 0 88 88 0 8 0 ffsino 272 1846 0 439 94 0 94 94 0 8 0 nchpl 144 2484 0 874 60 0 60 60 0 8 0 uvmvnodes 72 1856 0 0 34 0 34 34 0 8 0 vnodes 208 1856 0 0 98 0 98 98 0 8 0 namei 1024 6823 0 6823 1 0 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 scxspl 192 6377 0 6377 2 1 1 2 0 8 1 plimitpl 152 16 0 8 1 0 1 1 0 8 0 sigapl 424 672 0 642 4 0 4 4 0 8 0 futexpl 56 2848 0 2848 1 0 1 1 0 8 1 knotepl 112 59 0 42 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipelkpl 48 81 0 71 1 0 1 1 0 8 0 pipepl 120 162 0 143 1 0 1 1 0 8 0 fdescpl 496 657 0 642 3 0 3 3 0 8 0 filepl 152 2399 0 2332 3 0 3 3 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 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 62 0 53 1 0 1 1 0 8 0 zombiepl 144 642 0 640 1 0 1 1 0 8 0 processpl 984 672 0 640 5 0 5 5 0 8 0 procpl 624 1438 0 1396 4 0 4 4 0 8 0 sockpl 400 85 0 67 3 0 3 3 0 8 1 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 69 0 0 9 0 9 9 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 136 0 0 8 0 8 8 0 8 0 bufpl 280 3414 0 133 235 0 235 235 0 8 0 anonpl 16 45241 0 43324 13 1 12 12 0 124 4 amapchunkpl 152 3027 0 2958 6 0 6 6 0 158 1 amappl16 192 1912 0 1859 3 0 3 3 0 8 0 amappl15 184 4 0 3 2 1 1 1 0 8 0 amappl14 176 243 0 236 1 0 1 1 0 8 0 amappl13 168 241 0 237 1 0 1 1 0 8 0 amappl12 160 4 0 3 1 0 1 1 0 8 0 amappl11 152 52 0 37 1 0 1 1 0 8 0 amappl10 144 23 0 20 1 0 1 1 0 8 0 amappl9 136 239 0 236 1 0 1 1 0 8 0 amappl8 128 291 0 282 1 0 1 1 0 8 0 amappl7 120 122 0 111 1 0 1 1 0 8 0 amappl6 112 21 0 20 1 0 1 1 0 8 0 amappl5 104 552 0 538 1 0 1 1 0 8 0 amappl4 96 724 0 695 1 0 1 1 0 8 0 amappl3 88 312 0 307 1 0 1 1 0 8 0 amappl2 80 4303 0 4243 2 0 2 2 0 8 0 amappl1 72 23518 0 23087 23 5 18 18 0 8 8 amappl 80 1678 0 1647 1 0 1 1 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 657 0 642 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 657 0 642 1 0 1 1 0 8 0 vmmpekpl 168 8789 0 8765 2 0 2 2 0 8 0 vmmpepl 168 67299 0 66308 78 6 72 72 0 357 25 vmsppl 368 656 0 642 2 0 2 2 0 8 0 pdppl 4096 1322 0 1284 6 0 6 6 0 8 0 pvpl 32 178340 0 173979 104 0 104 104 0 265 67 pmappl 232 656 0 642 2 0 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 237 0 3 7 0 7 7 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}>