kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Tue Sep 10 16:53:07 PDT 2019 OpenBSD/amd64 (ci-openbsd-main-7.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. 2019/09/10 16:53:25 parsed 1 programs 2019/09/10 16:53:28 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 *378815 90790 0 0 0 0 syz-executor.0 db_enter() at db_enter+0x18 panic() at panic+0x15c ifa_update_broadaddr(ffff800000a62800,ffff8000006a1300,ffff80001491acb0) at ifa_update_broadaddr+0x61 in_ioctl(80206913,ffff80001491aca0,ffff800000a62800,1) at in_ioctl+0x463 ifioctl(fffffd80363d2788,80206913,ffff80001491aca0,ffff8000ffff8c60) at ifioctl+0xb34 sys_ioctl(ffff8000ffff8c60,ffff80001491adb8,ffff80001491ae00) at sys_ioctl+0x5b9 syscall(ffff80001491ae80) at syscall+0x507 Xsyscall(6,0,ffffffffffffff36,0,3,44ce5c6f010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9da0, 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,ffff8000006a1300,ffff80001491acb0) at ifa_update_broadaddr+0x61 in_ioctl(80206913,ffff80001491aca0,ffff800000a62800,1) at in_ioctl+0x463 ifioctl(fffffd80363d2788,80206913,ffff80001491aca0,ffff8000ffff8c60) at ifioctl+0xb34 sys_ioctl(ffff8000ffff8c60,ffff80001491adb8,ffff80001491ae00) at sys_ioctl+0x5b9 syscall(ffff80001491ae80) at syscall+0x507 Xsyscall(6,0,ffffffffffffff36,0,3,44ce5c6f010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff9da0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001491aa40 rbx 0xffff80001491aaf0 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001491aa00 r9 0x1 r10 0x4d7edd740849600f r11 0x6dd82bd02611a385 r12 0x3000000008 r13 0xffff80001491aa50 r14 0x100 r15 0x1 rip 0xffffffff814d3648 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001491aa30 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=378815 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff89e8,0xffffffff82585f08 process=0xffff8000148a3458 user=0xffff800014915000, vmspace=0xfffffd803f014220 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *90790 378815 82242 0 7 0 syz-executor.0 82242 135251 91487 0 3 0x82 nanosleep syz-executor.0 91487 184564 26510 0 3 0x82 thrsleep syz-execprog 91487 238605 26510 0 3 0x4000082 nanosleep syz-execprog 91487 217992 26510 0 3 0x4000082 thrsleep syz-execprog 91487 31111 26510 0 3 0x4000082 thrsleep syz-execprog 91487 163874 26510 0 3 0x4000082 kqread syz-execprog 91487 216297 26510 0 3 0x4000082 thrsleep syz-execprog 91487 312637 26510 0 3 0x4000082 thrsleep syz-execprog 26510 501150 53326 0 3 0x10008a pause ksh 53326 43629 85021 0 3 0x92 select sshd 62260 247138 1 0 3 0x100083 ttyin getty 85021 195552 1 0 3 0x80 select sshd 18642 150597 37733 73 3 0x100090 kqread syslogd 37733 173554 1 0 3 0x100082 netio syslogd 37515 127669 1 77 3 0x100090 poll dhclient 87155 516963 1 0 3 0x80 poll dhclient 34932 446080 0 0 2 0x14200 zerothread 30853 4631 0 0 3 0x14200 aiodoned aiodoned 26341 129950 0 0 3 0x14200 syncer update 31898 242913 0 0 3 0x14200 cleaner cleaner 43741 207938 0 0 3 0x14200 reaper reaper 81486 33270 0 0 3 0x14200 pgdaemon pagedaemon 15600 367417 0 0 3 0x14200 bored crynlk 23009 203763 0 0 3 0x14200 bored crypto 89224 419591 0 0 3 0x40014200 acpi0 acpi0 37535 123938 0 0 3 0x14200 bored softnet 57544 457718 0 0 3 0x14200 bored systqmp 42343 111163 0 0 3 0x14200 bored systq 73219 364744 0 0 3 0x40014200 bored softclock 71598 231097 0 0 3 0x40014200 idle0 66290 65525 0 0 3 0x14200 bored smr 1 47026 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 66 11K 11K 78643K 842 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 3059 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 tcpqe 32 6 0 6 1 1 0 1 0 8 0 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 256 168 0 0 11 0 11 11 0 8 0 art_table 32 169 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 1 0 1 1 0 8 1 scxspl 192 3974 0 3974 2 1 1 2 0 8 1 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 1 0 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 5475 0 5442 8 2 6 8 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9463 0 9387 8 3 5 6 0 8 0 bufpl 256 5784 0 1326 279 0 279 279 0 8 0 anonpl 16 20100 0 18670 15 2 13 13 0 62 6 amapchunkpl 152 801 0 741 5 0 5 5 0 158 2 amappl16 192 120 0 93 2 0 2 2 0 8 0 amappl14 176 21 0 18 2 1 1 1 0 8 0 amappl12 160 5 0 4 1 0 1 1 0 8 0 amappl11 152 45 0 33 1 0 1 1 0 8 0 amappl10 144 15 0 13 1 0 1 1 0 8 0 amappl9 136 403 0 398 1 0 1 1 0 8 0 amappl8 128 114 0 105 1 0 1 1 0 8 0 amappl7 120 28 0 26 1 0 1 1 0 8 0 amappl6 112 75 0 65 1 0 1 1 0 8 0 amappl5 104 162 0 149 1 0 1 1 0 8 0 amappl4 96 429 0 404 1 0 1 1 0 8 0 amappl3 88 118 0 112 1 0 1 1 0 8 0 amappl2 80 841 0 787 4 1 3 3 0 8 1 amappl1 72 13346 0 12951 27 10 17 20 0 8 8 amappl 80 419 0 393 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 6171 0 6155 1 0 1 1 0 8 0 vmmpepl 168 28992 0 28137 88 12 76 76 0 357 36 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 103240 0 99554 113 1 112 112 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 112 403 0 7 12 0 12 12 0 8 0 ddb>