kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Fri Jul 24 07:11:02 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-9.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.1.11' (ECDSA) to the list of known hosts. 2020/07/24 07:11:22 parsed 1 programs 2020/07/24 07:11:26 executed programs: 0 login: kernel: protection 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 the kernel did not panic ddb> trace in_delmulti(fbafffffffffffff) at in_delmulti+0x8d in_purgeaddr(ffff8000006b5400) at in_purgeaddr+0x156 in_ifdetach(ffff800000ac5800) at in_ifdetach+0x74 if_detach(ffff800000ac5800) at if_detach+0x140 tun_clone_destroy(ffff800000ac5800) at tun_clone_destroy+0x1c7 ifioctl(fffffd805da6c968,80206979,ffff80001d77d2c0,ffff80001d6a9008) at ifioctl+0x3de sys_ioctl(ffff80001d6a9008,ffff80001d77d3d8,ffff80001d77d420) at sys_ioctl+0x4a1 syscall(ffff80001d77d4a0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff6120, count: -9 ddb> show registers rdi 0x2 rsi 0 rbp 0xffff80001d77d0a0 rbx 0 rdx 0x3 rcx 0x1 rax 0x1 r8 0xffffffff813fc923 rt_ifa_purge+0x153 r9 0x5 r10 0xad84136822e1d963 r11 0x39bd28c9f4437df4 r12 0 r13 0x3 r14 0xfbafffffffffffff r15 0x1 rip 0xffffffff822447cd in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d77d040 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb> show proc PROC (syz-executor.0) pid=381969 stat=onproc flags process=0 proc=0 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6aa5f8,0xffffffff82829c20 process=0xffff80001d6c5970 user=0xffff80001d778000, vmspace=0xfffffd806bc09660 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *20989 381969 64421 0 7 0 syz-executor.0 64421 522211 7179 0 3 0x82 nanosleep syz-executor.0 7179 3737 77398 0 3 0x82 kqread syz-execprog 7179 141086 77398 0 3 0x4000082 thrsleep syz-execprog 7179 197242 77398 0 3 0x4000082 thrsleep syz-execprog 7179 378406 77398 0 3 0x4000082 thrsleep syz-execprog 7179 216264 77398 0 3 0x4000082 thrsleep syz-execprog 7179 118609 77398 0 3 0x4000082 thrsleep syz-execprog 7179 475525 77398 0 3 0x4000082 thrsleep syz-execprog 7179 482082 77398 0 3 0x4000082 thrsleep syz-execprog 77398 500576 92022 0 3 0x10008a pause ksh 92022 470059 76744 0 3 0x92 select sshd 94920 467261 1 0 3 0x100083 ttyin getty 76744 207191 1 0 3 0x80 select sshd 52732 52998 53520 73 3 0x100090 kqread syslogd 53520 393870 1 0 3 0x100082 netio syslogd 67331 499743 1 77 2 0x100090 dhclient 18254 243777 1 0 3 0x80 poll dhclient 23663 111074 0 0 3 0x14200 bored smr 83560 162113 0 0 3 0x14200 pgzero zerothread 6646 412965 0 0 3 0x14200 aiodoned aiodoned 74080 29538 0 0 3 0x14200 syncer update 6901 464573 0 0 3 0x14200 cleaner cleaner 35284 409239 0 0 3 0x14200 reaper reaper 10162 272815 0 0 3 0x14200 pgdaemon pagedaemon 94077 293669 0 0 3 0x14200 bored crynlk 47140 310960 0 0 3 0x14200 bored crypto 42518 451711 0 0 3 0x40014200 acpi0 acpi0 40208 293214 0 0 3 0x14200 bored softnet 98166 66215 0 0 2 0x14200 systqmp 12457 36234 0 0 3 0x14200 bored systq 4016 79491 0 0 3 0x40014200 bored softclock 80133 91291 0 0 3 0x40014200 idle0 1 61152 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9440 6320K 6320K 78643K 10540 0 pcb 13 8K 8K 78643K 13 0 rtable 75 2K 2K 78643K 155 0 ifaddr 32 8K 9K 78643K 33 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1181 74K 74K 78643K 1187 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 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 3 8K 12K 78643K 18 0 proc 47 38K 54K 78643K 318 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 25 1K 1K 78643K 26 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 171 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 68 11K 11K 78643K 834 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 6 0 temp 23 3845K 3909K 78643K 1626 0 kqueue 3 4K 4K 78643K 3 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 4 0 2 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 5 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 296 28 0 20 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1415 0 22 88 0 88 88 0 8 0 ffsino 240 1415 0 22 82 0 82 82 0 8 0 nchpl 144 1634 0 36 60 0 60 60 0 8 0 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3939 0 3939 2 1 1 1 0 8 1 scxspl 192 4248 0 4248 1 0 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 212 0 185 4 0 4 4 0 8 0 knotepl 112 47 0 36 1 0 1 1 0 8 0 kqueuepl 144 2 0 0 1 0 1 1 0 8 0 pipepl 272 70 0 63 2 1 1 1 0 8 0 fdescpl 432 198 0 185 2 0 2 2 0 8 0 filepl 120 980 0 925 2 0 2 2 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 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 57 0 50 1 0 1 1 0 8 0 zombiepl 144 185 0 185 2 1 1 1 0 8 1 processpl 928 212 0 185 4 0 4 4 0 8 0 procpl 624 219 0 185 3 0 3 3 0 8 0 sockpl 400 72 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5556 0 5528 6 2 4 6 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9715 0 9670 5 0 5 5 0 8 1 bufpl 280 2961 0 125 203 0 203 203 0 8 0 anonpl 16 20406 0 18878 14 2 12 12 0 107 3 amapchunkpl 152 652 0 591 4 0 4 4 0 158 1 amappl16 192 127 0 97 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 25 0 22 1 0 1 1 0 8 0 amappl13 168 20 0 18 2 1 1 1 0 8 0 amappl12 160 9 0 5 2 1 1 1 0 8 0 amappl11 152 45 0 34 1 0 1 1 0 8 0 amappl10 144 13 0 10 1 0 1 1 0 8 0 amappl9 136 208 0 207 1 0 1 1 0 8 0 amappl8 128 235 0 229 1 0 1 1 0 8 0 amappl7 120 102 0 91 1 0 1 1 0 8 0 amappl6 112 20 0 18 2 1 1 1 0 8 0 amappl5 104 165 0 154 1 0 1 1 0 8 0 amappl4 96 431 0 404 1 0 1 1 0 8 0 amappl3 88 109 0 101 1 0 1 1 0 8 0 amappl2 80 813 0 756 3 1 2 2 0 8 0 amappl1 72 13688 0 13289 24 7 17 17 0 8 8 amappl 80 418 0 392 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 198 0 185 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 185 1 0 1 1 0 8 0 vmmpekpl 168 6065 0 6043 2 0 2 2 0 8 0 vmmpepl 168 29387 0 28501 82 13 69 69 0 357 30 vmsppl 272 197 0 185 1 0 1 1 0 8 0 pdppl 4096 402 0 370 5 0 5 5 0 8 0 pvpl 32 104974 0 101155 104 2 102 102 0 265 69 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 215 0 7 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace in_delmulti(fbafffffffffffff) at in_delmulti+0x8d in_purgeaddr(ffff8000006b5400) at in_purgeaddr+0x156 in_ifdetach(ffff800000ac5800) at in_ifdetach+0x74 if_detach(ffff800000ac5800) at if_detach+0x140 tun_clone_destroy(ffff800000ac5800) at tun_clone_destroy+0x1c7 ifioctl(fffffd805da6c968,80206979,ffff80001d77d2c0,ffff80001d6a9008) at ifioctl+0x3de sys_ioctl(ffff80001d6a9008,ffff80001d77d3d8,ffff80001d77d420) at sys_ioctl+0x4a1 syscall(ffff80001d77d4a0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff6120, count: -9 ddb> machine ddbcpu 1 No such command ddb> trace in_delmulti(fbafffffffffffff) at in_delmulti+0x8d in_purgeaddr(ffff8000006b5400) at in_purgeaddr+0x156 in_ifdetach(ffff800000ac5800) at in_ifdetach+0x74 if_detach(ffff800000ac5800) at if_detach+0x140 tun_clone_destroy(ffff800000ac5800) at tun_clone_destroy+0x1c7 ifioctl(fffffd805da6c968,80206979,ffff80001d77d2c0,ffff80001d6a9008) at ifioctl+0x3de sys_ioctl(ffff80001d6a9008,ffff80001d77d3d8,ffff80001d77d420) at sys_ioctl+0x4a1 syscall(ffff80001d77d4a0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff6120, count: -9 ddb>