kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Tue Sep 10 12:47:51 PDT 2019 OpenBSD/amd64 (ci-openbsd-main-6.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.169' (ECDSA) to the list of known hosts. 2019/09/10 12:48:18 parsed 1 programs 2019/09/10 12:48:23 executed programs: 0 login: panic: ifa_update_broadaddr does not support dynamic length Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *341057 63848 0 0 0 0 syz-executor.0 db_enter() at db_enter+0x18 panic() at panic+0x15c ifa_update_broadaddr(ffff800000a62800,ffff8000006a1800,ffff800014918780) at ifa_update_broadaddr+0x61 in_ioctl(80206913,ffff800014918770,ffff800000a62800,1) at in_ioctl+0x463 ifioctl(fffffd80363ecc08,80206913,ffff800014918770,ffff8000ffff84f8) at ifioctl+0xb34 sys_ioctl(ffff8000ffff84f8,ffff800014918888,ffff8000149188d0) at sys_ioctl+0x5b9 syscall(ffff800014918950) at syscall+0x507 Xsyscall(6,0,ffffffffffffff36,0,3,76251cc8010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcaed0, count: 7 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic ifa_update_broadaddr does not support dynamic length ddb> trace db_enter() at db_enter+0x18 panic() at panic+0x15c ifa_update_broadaddr(ffff800000a62800,ffff8000006a1800,ffff800014918780) at ifa_update_broadaddr+0x61 in_ioctl(80206913,ffff800014918770,ffff800000a62800,1) at in_ioctl+0x463 ifioctl(fffffd80363ecc08,80206913,ffff800014918770,ffff8000ffff84f8) at ifioctl+0xb34 sys_ioctl(ffff8000ffff84f8,ffff800014918888,ffff8000149188d0) at sys_ioctl+0x5b9 syscall(ffff800014918950) at syscall+0x507 Xsyscall(6,0,ffffffffffffff36,0,3,76251cc8010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcaed0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff800014918510 rbx 0xffff8000149185c0 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff8000149184d0 r9 0x1 r10 0x7a3167cf177b92bd r11 0x3825bb33b7880bcf r12 0x3000000008 r13 0xffff800014918520 r14 0x100 r15 0x1 rip 0xffffffff8118e298 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800014918500 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=341057 stat=onproc flags process=0 proc=0 pri=51, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff825545b0 process=0xffff8000148a2018 user=0xffff800014913000, vmspace=0xfffffd803f013000 estcpu=1, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *63848 341057 86821 0 7 0 syz-executor.0 86821 74685 66972 0 2 0x2 syz-executor.0 66972 45877 70474 0 3 0x82 kqread syz-execprog 66972 355040 70474 0 3 0x4000082 nanosleep syz-execprog 66972 244913 70474 0 3 0x4000082 thrsleep syz-execprog 66972 249871 70474 0 3 0x4000082 thrsleep syz-execprog 66972 122462 70474 0 3 0x4000082 thrsleep syz-execprog 66972 79582 70474 0 3 0x4000082 thrsleep syz-execprog 66972 519907 70474 0 3 0x4000082 thrsleep syz-execprog 70474 12066 36907 0 3 0x10008a pause ksh 36907 105019 51058 0 3 0x92 select sshd 76778 403278 1 0 3 0x100083 ttyin getty 51058 85620 1 0 3 0x80 select sshd 93471 523730 37206 73 3 0x100090 kqread syslogd 37206 213854 1 0 3 0x100082 netio syslogd 73971 426674 1 77 3 0x100090 poll dhclient 94318 7345 1 0 3 0x80 poll dhclient 44494 150390 0 0 2 0x14200 zerothread 26422 348046 0 0 3 0x14200 aiodoned aiodoned 53410 290311 0 0 3 0x14200 syncer update 24376 485731 0 0 3 0x14200 cleaner cleaner 82870 469456 0 0 3 0x14200 reaper reaper 69942 38239 0 0 3 0x14200 pgdaemon pagedaemon 54810 18594 0 0 3 0x14200 bored crynlk 43241 76434 0 0 3 0x14200 bored crypto 34063 228358 0 0 3 0x40014200 acpi0 acpi0 75352 383210 0 0 3 0x14200 bored softnet 95295 176981 0 0 3 0x14200 bored systqmp 70530 485765 0 0 3 0x14200 bored systq 80056 336003 0 0 3 0x40014200 bored softclock 36875 413269 0 0 3 0x40014200 idle0 96964 75533 0 0 3 0x14200 bored smr 1 421980 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 Kern Lim devbuf 9433 6309K 6309K 78643K 10526 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 83 2K 2K 78643K 153 0 0 ifaddr 28 8K 8K 78643K 28 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1180 74K 74K 78643K 1185 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 3 8K 12K 78643K 18 0 0 proc 47 38K 54K 78643K 307 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 22 1K 1K 78643K 22 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 172 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 65 11K 11K 78643K 854 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 6 0K 0K 78643K 6 0 0 temp 39 3517K 3581K 78643K 3057 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 27 0 20 1 0 1 1 0 8 0 nd6 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 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 dino1pl 128 1413 0 19 45 0 45 45 0 8 0 ffsino 240 1413 0 19 82 0 82 82 0 8 0 nchpl 144 1653 0 48 60 0 60 60 0 8 0 uvmvnodes 72 1422 0 0 26 0 26 26 0 8 0 vnodes 208 1422 0 0 75 0 75 75 0 8 0 namei 1024 3839 0 3839 2 1 1 1 0 8 1 scxspl 192 4114 0 4114 8 1 7 7 0 8 7 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 185 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 112 138 0 125 2 1 1 1 0 8 0 fdescpl 424 198 0 185 2 0 2 2 0 8 0 filepl 120 977 0 923 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 47 0 40 1 0 1 1 0 8 0 zombiepl 144 185 0 185 2 1 1 1 0 8 1 processpl 864 212 0 185 4 0 4 4 0 8 0 procpl 632 218 0 185 3 0 3 3 0 8 0 sockpl 384 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5472 0 5444 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9468 0 9398 7 2 5 5 0 8 0 bufpl 256 5784 0 1326 279 0 279 279 0 8 0 anonpl 16 20854 0 19418 15 2 13 13 0 62 6 amapchunkpl 152 782 0 722 5 0 5 5 0 158 2 amappl16 192 114 0 88 2 0 2 2 0 8 0 amappl14 176 27 0 24 2 1 1 1 0 8 0 amappl12 160 12 0 11 1 0 1 1 0 8 0 amappl11 152 41 0 30 1 0 1 1 0 8 0 amappl10 144 13 0 11 1 0 1 1 0 8 0 amappl9 136 418 0 413 1 0 1 1 0 8 0 amappl8 128 118 0 106 1 0 1 1 0 8 0 amappl7 120 33 0 29 1 0 1 1 0 8 0 amappl6 112 74 0 65 1 0 1 1 0 8 0 amappl5 104 128 0 117 1 0 1 1 0 8 0 amappl4 96 427 0 403 1 0 1 1 0 8 0 amappl3 88 118 0 112 1 0 1 1 0 8 0 amappl2 80 846 0 790 4 1 3 3 0 8 1 amappl1 72 13223 0 12828 27 10 17 20 0 8 8 amappl 80 435 0 409 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 1 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 6184 0 6169 1 0 1 1 0 8 0 vmmpepl 168 28626 0 27765 88 12 76 76 0 357 37 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 103754 0 100069 117 5 112 112 0 265 81 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 401 0 7 12 0 12 12 0 8 0 ddb>