kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Fri Nov 29 09:17:46 PST 2019 OpenBSD/amd64 (ci-openbsd-main-9.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.255' (ECDSA) to the list of known hosts. 2019/11/29 09:18:05 parsed 1 programs 2019/11/29 09:18:07 executed programs: 0 login: kernel: protection fault trap, code=0 Stopped at pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace pool_do_put(ffffffff82581110,fffffd8034ab7d00) at pool_do_put+0x12e pool_put(ffffffff82581110,fffffd8034ab7d00) at pool_put+0x4b m_free(fffffd8034ab7d00) at m_free+0x119 rt_ifa_del(ffff8000006a2400,800100,ffff8000006a2440,0) at rt_ifa_del+0x436 in6_unlink_ifa(ffff8000006a2400,ffff800000a69800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000a69800,ffff8000149187f0,0) at in6_update_ifa+0x13f7 in6_ioctl_change_ifaddr(8080691a,ffff8000149187f0,ffff800000a69800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd80363dac08,8080691a,ffff8000149187f0,ffff8000ffff8a28) at ifioctl+0xe60 sys_ioctl(ffff8000ffff8a28,ffff800014918908,ffff800014918950) at sys_ioctl+0x5b9 syscall(ffff8000149189d0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc8960, count: -11 ddb> show registers rdi 0 rsi 0x75bda036b382ef86 rbp 0xffff800014918240 rbx 0x75bda036b382ef86 rdx 0xffff800014918190 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd8034ab8000 r8 0x4 r9 0x5 r10 0xd5fa9fef6973857c r11 0xc203d0bfdce484a7 r12 0xfffffd8034ab7d00 r13 0x75bda036b382ef86 r14 0xffffffff82581110 mbpool r15 0xfffffd8035ca8088 rip 0xffffffff81dacb4e pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff800014918190 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=469840 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8cb0,0xffffffff825aae18 process=0xffff8000148a3500 user=0xffff800014913000, vmspace=0xfffffd803f012660 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *31401 469840 54947 0 7 0 syz-executor.0 54947 339432 33652 0 2 0x2 syz-executor.0 33652 15598 74919 0 3 0x82 thrsleep syz-execprog 33652 6293 74919 0 3 0x4000082 nanosleep syz-execprog 33652 359782 74919 0 2 0x4000002 syz-execprog 33652 183851 74919 0 3 0x4000082 thrsleep syz-execprog 33652 117083 74919 0 3 0x4000082 kqread syz-execprog 33652 518783 74919 0 3 0x4000082 thrsleep syz-execprog 33652 143951 74919 0 3 0x4000082 thrsleep syz-execprog 74919 262761 42499 0 3 0x10008a pause ksh 42499 413204 71381 0 3 0x92 select sshd 78768 270579 1 0 3 0x100083 ttyin getty 71381 265379 1 0 3 0x80 select sshd 72502 186060 18761 73 3 0x100090 kqread syslogd 18761 321500 1 0 3 0x100082 netio syslogd 71091 132508 1 77 3 0x100090 poll dhclient 15312 121287 1 0 3 0x80 poll dhclient 68923 125432 0 0 2 0x14200 zerothread 22144 354453 0 0 3 0x14200 aiodoned aiodoned 30276 366544 0 0 3 0x14200 syncer update 76829 485077 0 0 3 0x14200 cleaner cleaner 23610 106996 0 0 3 0x14200 reaper reaper 10805 326714 0 0 3 0x14200 pgdaemon pagedaemon 94849 272446 0 0 3 0x14200 bored crynlk 33400 105434 0 0 3 0x14200 bored crypto 90188 216101 0 0 3 0x40014200 acpi0 acpi0 46823 85030 0 0 3 0x14200 bored softnet 25096 375729 0 0 3 0x14200 bored systqmp 93074 430175 0 0 3 0x14200 bored systq 49092 22493 0 0 3 0x40014200 bored softclock 60057 151874 0 0 3 0x40014200 idle0 62100 316319 0 0 3 0x14200 bored smr 1 221314 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 9442 6320K 6320K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 33 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1180 74K 74K 78643K 1185 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 1794 195K 288K 78643K 12646 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 22 1K 1K 78643K 22 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 18 79K 79K 78643K 18 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 67 11K 12K 78643K 858 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 6 0 temp 27 3545K 3609K 78643K 3025 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 0 1 0 1 1 0 8 0 rtpcb 96 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 280 5 0 5 1 0 1 1 0 8 1 tcpcb 640 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 1412 0 19 45 0 45 45 0 8 0 ffsino 240 1412 0 19 82 0 82 82 0 8 0 nchpl 144 1637 0 35 60 0 60 60 0 8 0 uvmvnodes 72 1421 0 0 26 0 26 26 0 8 0 vnodes 208 1421 0 0 75 0 75 75 0 8 0 namei 1024 3836 0 3836 1 0 1 1 0 8 1 scxspl 208 3984 0 3984 2 1 1 2 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 196 0 184 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 128 134 0 121 2 1 1 1 0 8 0 fdescpl 424 197 0 184 2 0 2 2 0 8 0 filepl 120 973 0 919 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 128 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 144 184 0 184 2 1 1 1 0 8 1 processpl 896 211 0 184 4 0 4 4 0 8 0 procpl 648 217 0 184 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 5484 0 5449 8 2 6 8 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9506 0 9427 8 2 6 6 0 8 0 mbufpl: pool(0xffffffff82581110:mbufpl): free list modified: page 0xfffffd8034ab7000; item ordinal 13; addr 0xfffffd8034ab7e00 (p 0xfffffd8035ca8000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd8034ab7000; item ordinal 13; addr 0xfffffd8034ab7e00 (p 0xfffffd8035ca8000); offset 0x0=0x0 mbufpl: pool(0xffffffff82581110:mbufpl): page inconsistency: page 0xfffffd8034ab7000; item ordinal 14; addr 0x75bda036b382ef86 bufpl 280 5784 0 1322 319 0 319 319 0 8 0 anonpl 16 21429 0 19966 15 2 13 13 0 62 6 amapchunkpl 152 856 0 796 5 0 5 5 0 158 2 amappl16 192 135 0 105 2 0 2 2 0 8 0 amappl14 176 44 0 39 1 0 1 1 0 8 0 amappl12 160 11 0 8 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 10 0 8 2 1 1 1 0 8 0 amappl9 136 394 0 392 1 0 1 1 0 8 0 amappl8 128 108 0 99 1 0 1 1 0 8 0 amappl7 120 28 0 25 1 0 1 1 0 8 0 amappl6 112 59 0 53 1 0 1 1 0 8 0 amappl5 104 126 0 117 1 0 1 1 0 8 0 amappl4 96 423 0 399 1 0 1 1 0 8 0 amappl3 88 116 0 111 1 0 1 1 0 8 0 amappl2 80 841 0 785 4 1 3 3 0 8 1 amappl1 72 13206 0 12806 27 10 17 20 0 8 8 amappl 80 439 0 413 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 24 197 0 184 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 197 0 184 1 0 1 1 0 8 0 vmmpekpl 168 6154 0 6139 1 0 1 1 0 8 0 vmmpepl 168 28660 0 27793 89 12 77 77 0 357 38 vmsppl 272 196 0 184 1 0 1 1 0 8 0 pdppl 4096 400 0 368 5 0 5 5 0 8 0 pvpl 32 104805 0 101039 115 2 113 113 0 265 81 pmappl 200 196 0 184 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 123 0 6 4 0 4 4 0 8 0 ddb>