kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Tue Sep 10 17:12:41 PDT 2019 OpenBSD/amd64 (ci-openbsd-main-1.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.47' (ECDSA) to the list of known hosts. 2019/09/10 17:13:24 parsed 1 programs 2019/09/10 17:13:28 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 *192627 55187 0 0 0 0 syz-executor.0 db_enter() at db_enter+0x18 panic() at panic+0x15c ifa_update_broadaddr(ffff800000a62800,ffff8000006a1600,ffff80001491a880) at ifa_update_broadaddr+0x61 in_ioctl(80206913,ffff80001491a870,ffff800000a62800,1) at in_ioctl+0x463 ifioctl(fffffd80363d9788,80206913,ffff80001491a870,ffff8000ffff8770) at ifioctl+0xb34 sys_ioctl(ffff8000ffff8770,ffff80001491a988,ffff80001491a9d0) at sys_ioctl+0x5b9 syscall(ffff80001491aa50) at syscall+0x507 Xsyscall(6,0,ffffffffffffff36,0,3,f7f52e4c010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbe020, 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,ffff8000006a1600,ffff80001491a880) at ifa_update_broadaddr+0x61 in_ioctl(80206913,ffff80001491a870,ffff800000a62800,1) at in_ioctl+0x463 ifioctl(fffffd80363d9788,80206913,ffff80001491a870,ffff8000ffff8770) at ifioctl+0xb34 sys_ioctl(ffff8000ffff8770,ffff80001491a988,ffff80001491a9d0) at sys_ioctl+0x5b9 syscall(ffff80001491aa50) at syscall+0x507 Xsyscall(6,0,ffffffffffffff36,0,3,f7f52e4c010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbe020, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001491a610 rbx 0xffff80001491a6c0 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff80001491a5d0 r9 0x1 r10 0xbfeebdf23cf329e7 r11 0xd12428659a590e5a r12 0x3000000008 r13 0xffff80001491a620 r14 0x100 r15 0x1 rip 0xffffffff814d3648 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80001491a600 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=192627 stat=onproc flags process=0 proc=0 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff89e8,0xffffffff82585f08 process=0xffff800014894378 user=0xffff800014915000, vmspace=0xfffffd803f014110 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *55187 192627 64950 0 7 0 syz-executor.0 64950 153187 26426 0 3 0x82 nanosleep syz-executor.0 26426 131373 23299 0 3 0x82 kqread syz-execprog 26426 433403 23299 0 3 0x4000082 thrsleep syz-execprog 26426 485083 23299 0 3 0x4000082 thrsleep syz-execprog 26426 331987 23299 0 3 0x4000082 thrsleep syz-execprog 26426 433634 23299 0 3 0x4000082 thrsleep syz-execprog 26426 310429 23299 0 3 0x4000082 thrsleep syz-execprog 26426 439702 23299 0 3 0x4000082 thrsleep syz-execprog 23299 240498 28333 0 3 0x10008a pause ksh 28333 371671 1205 0 3 0x92 select sshd 3878 350883 1 0 3 0x100083 ttyin getty 1205 378313 1 0 3 0x80 select sshd 88827 351844 34815 73 3 0x100090 kqread syslogd 34815 276000 1 0 3 0x100082 netio syslogd 23508 349531 1 77 3 0x100090 poll dhclient 25984 495399 1 0 3 0x80 poll dhclient 83373 408791 0 0 2 0x14200 zerothread 77857 185572 0 0 3 0x14200 aiodoned aiodoned 23495 377537 0 0 3 0x14200 syncer update 69775 103061 0 0 3 0x14200 cleaner cleaner 18328 466132 0 0 3 0x14200 reaper reaper 26099 291390 0 0 3 0x14200 pgdaemon pagedaemon 53396 301302 0 0 3 0x14200 bored crynlk 10580 427065 0 0 3 0x14200 bored crypto 30781 424605 0 0 3 0x40014200 acpi0 acpi0 12945 297050 0 0 3 0x14200 bored softnet 17587 301474 0 0 3 0x14200 bored systqmp 65747 98340 0 0 3 0x14200 bored systq 63353 483303 0 0 3 0x40014200 bored softclock 67180 153102 0 0 3 0x40014200 idle0 24969 159312 0 0 3 0x14200 bored smr 1 98120 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 837 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 3058 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 2 1 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 3 2 1 1 0 8 1 scxspl 192 4130 0 4130 8 7 1 7 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 3 2 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 3 2 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 2 1 1 1 0 8 1 mcl2k 2048 5470 0 5442 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9483 0 9412 7 2 5 5 0 8 0 bufpl 256 5785 0 1327 279 0 279 279 0 8 0 anonpl 16 20000 0 18572 15 2 13 13 0 62 7 amapchunkpl 152 756 0 696 5 0 5 5 0 158 2 amappl16 192 121 0 93 2 0 2 2 0 8 0 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 20 0 19 3 2 1 1 0 8 0 amappl12 160 10 0 8 2 1 1 1 0 8 0 amappl11 152 44 0 33 1 0 1 1 0 8 0 amappl10 144 8 0 7 2 1 1 1 0 8 0 amappl9 136 407 0 402 1 0 1 1 0 8 0 amappl8 128 116 0 106 1 0 1 1 0 8 0 amappl7 120 29 0 27 1 0 1 1 0 8 0 amappl6 112 72 0 65 1 0 1 1 0 8 0 amappl5 104 144 0 135 1 0 1 1 0 8 0 amappl4 96 432 0 403 1 0 1 1 0 8 0 amappl3 88 116 0 110 1 0 1 1 0 8 0 amappl2 80 801 0 742 4 1 3 3 0 8 1 amappl1 72 13431 0 13039 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 6149 0 6130 1 0 1 1 0 8 0 vmmpepl 168 28637 0 27780 95 19 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 103032 0 99354 121 9 112 112 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 9 12 0 12 12 0 8 0 ddb>