kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Sat Jul 11 17:16:39 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-9.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.102' (ECDSA) to the list of known hosts. 2020/07/11 17:17:16 parsed 1 programs 2020/07/11 17:17:20 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(ffffffff8280f338,fffffd8064ebde00) at pool_do_put+0x12e pool_put(ffffffff8280f338,fffffd8064ebde00) at pool_put+0x4b m_free(fffffd8064ebde00) at m_free+0x119 rt_ifa_del(ffff8000006b5200,800100,ffff8000006b5240,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5200,ffff800000ac5800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac5800,ffff80001d77db90,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77db90,ffff800000ac5800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da627d8,8080691a,ffff80001d77db90,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d77dca8,ffff80001d77dcf0) at sys_ioctl+0x4a1 syscall(ffff80001d77dd70) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6a60, count: -11 ddb> show registers rdi 0 rsi 0xf48b3c9effdc14d0 rbp 0xffff80001d77d5e0 rbx 0xf48b3c9effdc14d0 rdx 0xffff80001d77d530 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0x5 r10 0xfd1afab654d4605f r11 0x72b705b328e7dc5e r12 0xfffffd8064ebde00 r13 0xf48b3c9effdc14d0 r14 0xffffffff8280f338 mbpool r15 0xfffffd805e1037e8 rip 0xffffffff81beccce pool_do_put+0x12e cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80001d77d530 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=206971 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a9c38,0xffffffff828181b0 process=0xffff80001d6c4750 user=0xffff80001d778000, vmspace=0xfffffd806bc09440 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *45120 206971 23670 0 7 0 syz-executor.0 23670 429329 11733 0 3 0x82 nanosleep syz-executor.0 11733 492940 85428 0 3 0x82 thrsleep syz-execprog 11733 460038 85428 0 3 0x4000082 nanosleep syz-execprog 11733 50658 85428 0 3 0x4000082 thrsleep syz-execprog 11733 140545 85428 0 3 0x4000082 thrsleep syz-execprog 11733 26102 85428 0 3 0x4000082 thrsleep syz-execprog 11733 270364 85428 0 3 0x4000082 kqread syz-execprog 11733 228073 85428 0 3 0x4000082 thrsleep syz-execprog 11733 176059 85428 0 3 0x4000082 thrsleep syz-execprog 85428 281380 1088 0 3 0x10008a pause ksh 1088 278707 12775 0 3 0x92 select sshd 74357 56048 1 0 3 0x100083 ttyin getty 12775 116931 1 0 3 0x80 select sshd 85401 403581 50507 73 3 0x100090 kqread syslogd 50507 111155 1 0 3 0x100082 netio syslogd 60038 383712 1 77 3 0x100090 poll dhclient 64104 264702 1 0 3 0x80 poll dhclient 87420 478104 0 0 3 0x14200 bored smr 45082 463836 0 0 2 0x14200 zerothread 58739 335146 0 0 3 0x14200 aiodoned aiodoned 17387 452476 0 0 3 0x14200 syncer update 98051 480790 0 0 3 0x14200 cleaner cleaner 14609 184767 0 0 3 0x14200 reaper reaper 59395 119690 0 0 3 0x14200 pgdaemon pagedaemon 68552 371585 0 0 3 0x14200 bored crynlk 94090 211273 0 0 3 0x14200 bored crypto 99069 160143 0 0 3 0x40014200 acpi0 acpi0 4727 329117 0 0 3 0x14200 bored softnet 60783 292489 0 0 3 0x14200 bored systqmp 20398 201954 0 0 3 0x14200 bored systq 53177 246760 0 0 3 0x40014200 bored softclock 38539 336624 0 0 3 0x40014200 idle0 1 158923 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 9444 6320K 6320K 78643K 10543 0 pcb 14 8K 8K 78643K 60 0 rtable 83 2K 2K 78643K 154 0 ifaddr 33 9K 9K 78643K 79 0 counters 20 16K 16K 78643K 20 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1182 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 64 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 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 66 11K 11K 78643K 906 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 4 0K 0K 78643K 6 0 temp 23 3845K 3909K 78643K 1714 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 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 296 73 0 66 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 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 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 1461 0 67 88 0 88 88 0 8 0 ffsino 240 1461 0 67 83 0 83 83 0 8 1 nchpl 144 1726 0 129 60 0 60 60 0 8 0 uvmvnodes 72 1470 0 0 27 0 27 27 0 8 0 vnodes 208 1470 0 0 78 0 78 78 0 8 0 namei 1024 4123 0 4123 2 1 1 1 0 8 1 scxspl 192 4696 0 4696 2 1 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 258 0 231 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 432 244 0 231 2 0 2 2 0 8 0 filepl 120 1071 0 1017 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 144 231 0 231 2 1 1 1 0 8 1 processpl 928 258 0 231 4 0 4 4 0 8 0 procpl 624 265 0 231 3 0 3 3 0 8 0 sockpl 400 117 0 100 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5545 0 5517 6 2 4 6 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9731 0 9654 6 1 5 5 0 8 0 mbufpl: pool(0xffffffff8280f338:mbufpl): free list modified: page 0xfffffd8064ebd000; item ordinal 0; addr 0xfffffd8064ebdf00 (p 0xfffffd805e103000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd8064ebd000; item ordinal 0; addr 0xfffffd8064ebdf00 (p 0xfffffd805e103000); offset 0x0=0x0 mbufpl: pool(0xffffffff8280f338:mbufpl): page inconsistency: page 0xfffffd8064ebd000; item ordinal 1; addr 0xf48b3c9effdc14d0 bufpl 280 3006 0 126 206 0 206 206 0 8 0 anonpl 16 22729 0 21186 14 2 12 12 0 107 4 amapchunkpl 152 806 0 745 4 0 4 4 0 158 1 amappl16 192 323 0 287 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 38 0 34 1 0 1 1 0 8 0 amappl13 168 21 0 19 2 1 1 1 0 8 0 amappl12 160 6 0 3 2 1 1 1 0 8 0 amappl11 152 42 0 33 1 0 1 1 0 8 0 amappl10 144 12 0 8 1 0 1 1 0 8 0 amappl9 136 267 0 264 1 0 1 1 0 8 0 amappl8 128 281 0 274 1 0 1 1 0 8 0 amappl7 120 102 0 91 1 0 1 1 0 8 0 amappl6 112 20 0 17 2 1 1 1 0 8 0 amappl5 104 186 0 175 1 0 1 1 0 8 0 amappl4 96 425 0 403 1 0 1 1 0 8 0 amappl3 88 107 0 101 1 0 1 1 0 8 0 amappl2 80 899 0 844 2 0 2 2 0 8 0 amappl1 72 13868 0 13476 24 7 17 17 0 8 8 amappl 80 488 0 462 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 24 244 0 231 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 244 0 231 1 0 1 1 0 8 0 vmmpekpl 168 6156 0 6134 2 0 2 2 0 8 0 vmmpepl 168 31328 0 30440 89 20 69 69 0 357 30 vmsppl 272 243 0 231 1 0 1 1 0 8 0 pdppl 4096 494 0 462 5 0 5 5 0 8 0 pvpl 32 111130 0 107281 108 6 102 102 0 265 70 pmappl 200 243 0 231 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 216 0 8 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff8280f338,fffffd8064ebde00) at pool_do_put+0x12e pool_put(ffffffff8280f338,fffffd8064ebde00) at pool_put+0x4b m_free(fffffd8064ebde00) at m_free+0x119 rt_ifa_del(ffff8000006b5200,800100,ffff8000006b5240,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5200,ffff800000ac5800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac5800,ffff80001d77db90,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77db90,ffff800000ac5800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da627d8,8080691a,ffff80001d77db90,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d77dca8,ffff80001d77dcf0) at sys_ioctl+0x4a1 syscall(ffff80001d77dd70) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6a60, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff8280f338,fffffd8064ebde00) at pool_do_put+0x12e pool_put(ffffffff8280f338,fffffd8064ebde00) at pool_put+0x4b m_free(fffffd8064ebde00) at m_free+0x119 rt_ifa_del(ffff8000006b5200,800100,ffff8000006b5240,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5200,ffff800000ac5800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac5800,ffff80001d77db90,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77db90,ffff800000ac5800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da627d8,8080691a,ffff80001d77db90,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d77dca8,ffff80001d77dcf0) at sys_ioctl+0x4a1 syscall(ffff80001d77dd70) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6a60, count: -11 ddb>