kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Sat Jul 18 04:05:37 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-4.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.125' (ECDSA) to the list of known hosts. 2020/07/18 04:06:13 parsed 1 programs 2020/07/18 04:06:18 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(ffffffff828410c0,fffffd805c3efe00) at pool_do_put+0x12e pool_put(ffffffff828410c0,fffffd805c3efe00) at pool_put+0x4b m_free(fffffd805c3efe00) at m_free+0x119 rt_ifa_del(ffff8000006b5600,800100,ffff8000006b5640,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5600,ffff800000ac6800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac6800,ffff80001d779380,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d779380,ffff800000ac6800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da6ac88,8080691a,ffff80001d779380,ffff80001d6aa5f8) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa5f8,ffff80001d779498,ffff80001d7794e0) at sys_ioctl+0x4a1 syscall(ffff80001d779560) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc54e0, count: -11 ddb> show registers rdi 0 rsi 0xd10f1db0f181b19e rbp 0xffff80001d778dd0 rbx 0xd10f1db0f181b19e rdx 0xffff80001d778d20 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0x5 r10 0x626b03d12967727b r11 0x863daf68a653f1ad r12 0xfffffd805c3efe00 r13 0xd10f1db0f181b19e r14 0xffffffff828410c0 mbpool r15 0xfffffd805dc33e28 rip 0xffffffff8236e57e pool_do_put+0x12e cs 0x8 rflags 0x10212 __ALIGN_SIZE+0xf212 rsp 0xffff80001d778d20 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=32269 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a9758,0xffffffff82837f10 process=0xffff80001d6c4e90 user=0xffff80001d774000, vmspace=0xfffffd806bc0a110 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *30060 32269 49238 0 7 0 syz-executor.0 49238 417106 74696 0 3 0x82 nanosleep syz-executor.0 74696 360639 96340 0 3 0x82 thrsleep syz-execprog 74696 92663 96340 0 3 0x4000082 nanosleep syz-execprog 74696 427364 96340 0 3 0x4000082 thrsleep syz-execprog 74696 255557 96340 0 3 0x4000082 thrsleep syz-execprog 74696 337679 96340 0 3 0x4000082 thrsleep syz-execprog 74696 182918 96340 0 3 0x4000082 kqread syz-execprog 74696 109524 96340 0 3 0x4000082 thrsleep syz-execprog 96340 385520 87913 0 3 0x10008a pause ksh 87913 518007 73822 0 3 0x92 select sshd 2783 405754 1 0 3 0x100083 ttyin getty 73822 191584 1 0 3 0x80 select sshd 52629 360249 27417 73 3 0x100090 kqread syslogd 27417 499375 1 0 3 0x100082 netio syslogd 79422 27932 1 77 3 0x100090 poll dhclient 12907 84489 1 0 3 0x80 poll dhclient 61940 87477 0 0 3 0x14200 bored smr 31707 74280 0 0 2 0x14200 zerothread 64608 454992 0 0 3 0x14200 aiodoned aiodoned 45188 374571 0 0 3 0x14200 syncer update 6977 260831 0 0 3 0x14200 cleaner cleaner 78110 254615 0 0 3 0x14200 reaper reaper 25310 283977 0 0 3 0x14200 pgdaemon pagedaemon 56702 67655 0 0 3 0x14200 bored crynlk 66954 247747 0 0 3 0x14200 bored crypto 83078 423207 0 0 3 0x40014200 acpi0 acpi0 77409 270251 0 0 3 0x14200 bored softnet 92209 429899 0 0 3 0x14200 bored systqmp 19784 383707 0 0 3 0x14200 bored systq 5991 501747 0 0 3 0x40014200 bored softclock 83970 120595 0 0 3 0x40014200 idle0 1 108554 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 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 77 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 62 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 69 11K 12K 78643K 880 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 71 0 64 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 1459 0 65 88 0 88 88 0 8 0 ffsino 240 1459 0 65 83 0 83 83 0 8 1 nchpl 144 1722 0 125 60 0 60 60 0 8 0 uvmvnodes 72 1468 0 0 27 0 27 27 0 8 0 vnodes 208 1468 0 0 78 0 78 78 0 8 0 namei 1024 4115 0 4115 2 1 1 1 0 8 1 scxspl 192 4697 0 4697 2 1 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 256 0 229 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 432 242 0 229 2 0 2 2 0 8 0 filepl 120 1067 0 1013 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 144 229 0 229 2 1 1 1 0 8 1 processpl 928 256 0 229 4 0 4 4 0 8 0 procpl 624 262 0 229 3 0 3 3 0 8 0 sockpl 400 115 0 98 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5554 0 5526 6 2 4 6 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9726 0 9649 5 0 5 5 0 8 0 mbufpl: pool(0xffffffff828410c0:mbufpl): free list modified: page 0xfffffd805c3ef000; item ordinal 0; addr 0xfffffd805c3eff00 (p 0xfffffd805dc33000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd805c3ef000; item ordinal 0; addr 0xfffffd805c3eff00 (p 0xfffffd805dc33000); offset 0x0=0x0 mbufpl: pool(0xffffffff828410c0:mbufpl): page inconsistency: page 0xfffffd805c3ef000; item ordinal 1; addr 0xd10f1db0f181b19e bufpl 280 3004 0 125 206 0 206 206 0 8 0 anonpl 16 21580 0 20029 14 2 12 12 0 107 5 amapchunkpl 152 814 0 753 4 0 4 4 0 158 1 amappl16 192 262 0 230 2 0 2 2 0 8 0 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 74 0 68 1 0 1 1 0 8 0 amappl13 168 20 0 18 2 1 1 1 0 8 0 amappl12 160 12 0 9 2 1 1 1 0 8 0 amappl11 152 90 0 79 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 215 0 214 1 0 1 1 0 8 0 amappl8 128 233 0 227 1 0 1 1 0 8 0 amappl7 120 102 0 92 1 0 1 1 0 8 0 amappl6 112 68 0 64 2 1 1 1 0 8 0 amappl5 104 149 0 139 1 0 1 1 0 8 0 amappl4 96 474 0 448 1 0 1 1 0 8 0 amappl3 88 107 0 101 1 0 1 1 0 8 0 amappl2 80 897 0 841 2 0 2 2 0 8 0 amappl1 72 14004 0 13603 24 7 17 17 0 8 8 amappl 80 463 0 437 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 24 242 0 229 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 242 0 229 1 0 1 1 0 8 0 vmmpekpl 168 6152 0 6130 2 0 2 2 0 8 0 vmmpepl 168 31285 0 30388 89 20 69 69 0 357 29 vmsppl 272 241 0 229 1 0 1 1 0 8 0 pdppl 4096 490 0 458 5 0 5 5 0 8 0 pvpl 32 109733 0 105887 109 7 102 102 0 265 70 pmappl 200 241 0 229 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 215 0 7 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff828410c0,fffffd805c3efe00) at pool_do_put+0x12e pool_put(ffffffff828410c0,fffffd805c3efe00) at pool_put+0x4b m_free(fffffd805c3efe00) at m_free+0x119 rt_ifa_del(ffff8000006b5600,800100,ffff8000006b5640,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5600,ffff800000ac6800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac6800,ffff80001d779380,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d779380,ffff800000ac6800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da6ac88,8080691a,ffff80001d779380,ffff80001d6aa5f8) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa5f8,ffff80001d779498,ffff80001d7794e0) at sys_ioctl+0x4a1 syscall(ffff80001d779560) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc54e0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff828410c0,fffffd805c3efe00) at pool_do_put+0x12e pool_put(ffffffff828410c0,fffffd805c3efe00) at pool_put+0x4b m_free(fffffd805c3efe00) at m_free+0x119 rt_ifa_del(ffff8000006b5600,800100,ffff8000006b5640,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5600,ffff800000ac6800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac6800,ffff80001d779380,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d779380,ffff800000ac6800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da6ac88,8080691a,ffff80001d779380,ffff80001d6aa5f8) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa5f8,ffff80001d779498,ffff80001d7794e0) at sys_ioctl+0x4a1 syscall(ffff80001d779560) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc54e0, count: -11 ddb>