kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Thu Jul 9 12:13:28 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-7.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.1.59' (ECDSA) to the list of known hosts. 2020/07/09 12:14:01 parsed 1 programs 2020/07/09 12:14:04 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(ffffffff82834208,fffffd8065a2ba00) at pool_do_put+0x12e pool_put(ffffffff82834208,fffffd8065a2ba00) at pool_put+0x4b m_free(fffffd8065a2ba00) at m_free+0x119 rt_ifa_del(ffff8000006b5200,800100,ffff8000006b5240,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5200,ffff800000ac3800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac3800,ffff80001d777160,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d777160,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da78af8,8080691a,ffff80001d777160,ffff80001d6aa868) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa868,ffff80001d777278,ffff80001d7772c0) at sys_ioctl+0x4a1 syscall(ffff80001d777340) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd9180, count: -11 ddb> show registers rdi 0 rsi 0x13def43fe53449a1 rbp 0xffff80001d776bb0 rbx 0x13def43fe53449a1 rdx 0xffff80001d776b00 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0x5 r10 0x1ff85d5a8fb48fdb r11 0x762e98a850f4a3 r12 0xfffffd8065a2ba00 r13 0x13def43fe53449a1 r14 0xffffffff82834208 mbpool r15 0xfffffd8065fb7aa8 rip 0xffffffff81b0e96e pool_do_put+0x12e cs 0x8 rflags 0x10296 __ALIGN_SIZE+0xf296 rsp 0xffff80001d776b00 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=383976 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a9758,0xffffffff82837320 process=0xffff80001d6c4e90 user=0xffff80001d772000, vmspace=0xfffffd806bc0a000 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *33665 383976 47659 0 7 0 syz-executor.0 47659 275514 64132 0 3 0x82 nanosleep syz-executor.0 64132 232031 35739 0 3 0x82 kqread syz-execprog 64132 319872 35739 0 3 0x4000082 nanosleep syz-execprog 64132 63041 35739 0 3 0x4000082 thrsleep syz-execprog 64132 12020 35739 0 3 0x4000082 thrsleep syz-execprog 64132 48726 35739 0 3 0x4000082 thrsleep syz-execprog 64132 331643 35739 0 3 0x4000082 thrsleep syz-execprog 64132 39597 35739 0 3 0x4000082 thrsleep syz-execprog 35739 34134 89783 0 3 0x10008a pause ksh 89783 342523 49191 0 3 0x92 select sshd 63136 433648 1 0 3 0x100083 ttyin getty 49191 460005 1 0 3 0x80 select sshd 28685 239248 90913 73 3 0x100090 kqread syslogd 90913 53187 1 0 3 0x100082 netio syslogd 4363 432497 1 77 3 0x100090 poll dhclient 49275 391671 1 0 3 0x80 poll dhclient 58414 102108 0 0 3 0x14200 bored smr 62705 185214 0 0 2 0x14200 zerothread 17622 57360 0 0 3 0x14200 aiodoned aiodoned 61188 518070 0 0 3 0x14200 syncer update 52232 377752 0 0 3 0x14200 cleaner cleaner 95638 391366 0 0 3 0x14200 reaper reaper 67508 404952 0 0 3 0x14200 pgdaemon pagedaemon 60775 172531 0 0 3 0x14200 bored crynlk 21724 81008 0 0 3 0x14200 bored crypto 14388 382916 0 0 3 0x40014200 acpi0 acpi0 38144 280622 0 0 3 0x14200 bored softnet 69423 507614 0 0 3 0x14200 bored systqmp 55449 393585 0 0 3 0x14200 bored systq 33174 447450 0 0 3 0x40014200 bored softclock 20805 467949 0 0 3 0x40014200 idle0 1 285678 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 6321K 6321K 78643K 10543 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 33 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 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 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 67 11K 11K 78643K 834 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 6 0K 0K 78643K 6 0 temp 23 3845K 3909K 78643K 1621 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 27 0 20 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 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 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 1415 0 21 88 0 88 88 0 8 0 ffsino 240 1415 0 21 82 0 82 82 0 8 0 nchpl 144 1634 0 36 60 0 60 60 0 8 0 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3939 0 3939 2 1 1 1 0 8 1 scxspl 192 4408 0 4408 2 1 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 212 0 185 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 432 198 0 185 2 0 2 2 0 8 0 filepl 120 979 0 925 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 144 185 0 185 2 1 1 1 0 8 1 processpl 928 212 0 185 4 0 4 4 0 8 0 procpl 624 218 0 185 3 0 3 3 0 8 0 sockpl 400 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5553 0 5514 8 2 6 8 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9636 0 9553 8 2 6 6 0 8 0 mbufpl: pool(0xffffffff82834208:mbufpl): free list modified: page 0xfffffd8065a2b000; item ordinal 0; addr 0xfffffd8065a2bb00 (p 0xfffffd8065fb7000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd8065a2b000; item ordinal 0; addr 0xfffffd8065a2bb00 (p 0xfffffd8065fb7000); offset 0x0=0x0 mbufpl: pool(0xffffffff82834208:mbufpl): page inconsistency: page 0xfffffd8065a2b000; item ordinal 1; addr 0x13def43fe53449a1 bufpl 280 2961 0 125 203 0 203 203 0 8 0 anonpl 16 20435 0 18936 14 2 12 12 0 107 5 amapchunkpl 152 772 0 711 4 0 4 4 0 158 1 amappl16 192 127 0 99 2 0 2 2 0 8 0 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 27 0 22 1 0 1 1 0 8 0 amappl13 168 20 0 18 2 1 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 42 0 31 1 0 1 1 0 8 0 amappl10 144 17 0 14 1 0 1 1 0 8 0 amappl9 136 217 0 216 1 0 1 1 0 8 0 amappl8 128 238 0 232 1 0 1 1 0 8 0 amappl7 120 103 0 93 1 0 1 1 0 8 0 amappl6 112 23 0 20 2 1 1 1 0 8 0 amappl5 104 141 0 132 1 0 1 1 0 8 0 amappl4 96 427 0 402 1 0 1 1 0 8 0 amappl3 88 109 0 101 1 0 1 1 0 8 0 amappl2 80 807 0 753 3 1 2 2 0 8 0 amappl1 72 13708 0 13307 25 8 17 17 0 8 9 amappl 80 418 0 392 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 24 198 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 6082 0 6062 2 0 2 2 0 8 0 vmmpepl 168 29448 0 28569 88 19 69 69 0 357 29 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 105051 0 101254 109 7 102 102 0 265 70 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 220 0 9 7 0 7 7 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff82834208,fffffd8065a2ba00) at pool_do_put+0x12e pool_put(ffffffff82834208,fffffd8065a2ba00) at pool_put+0x4b m_free(fffffd8065a2ba00) at m_free+0x119 rt_ifa_del(ffff8000006b5200,800100,ffff8000006b5240,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5200,ffff800000ac3800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac3800,ffff80001d777160,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d777160,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da78af8,8080691a,ffff80001d777160,ffff80001d6aa868) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa868,ffff80001d777278,ffff80001d7772c0) at sys_ioctl+0x4a1 syscall(ffff80001d777340) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd9180, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82834208,fffffd8065a2ba00) at pool_do_put+0x12e pool_put(ffffffff82834208,fffffd8065a2ba00) at pool_put+0x4b m_free(fffffd8065a2ba00) at m_free+0x119 rt_ifa_del(ffff8000006b5200,800100,ffff8000006b5240,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5200,ffff800000ac3800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac3800,ffff80001d777160,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d777160,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da78af8,8080691a,ffff80001d777160,ffff80001d6aa868) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa868,ffff80001d777278,ffff80001d7772c0) at sys_ioctl+0x4a1 syscall(ffff80001d777340) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd9180, count: -11 ddb>