kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Sat Jul 11 11:38:43 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-1.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts. 2020/07/11 11:39:19 parsed 1 programs 2020/07/11 11:39:23 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(ffffffff82808ac8,fffffd806217dc00) at pool_do_put+0x12e pool_put(ffffffff82808ac8,fffffd806217dc00) at pool_put+0x4b m_free(fffffd806217dc00) at m_free+0x119 rt_ifa_del(ffff8000006b5400,800100,ffff8000006b5440,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5400,ffff800000ac3800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac3800,ffff80001d77eff0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77eff0,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da76c88,8080691a,ffff80001d77eff0,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d77f108,ffff80001d77f150) at sys_ioctl+0x4a1 syscall(ffff80001d77f1d0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcb4a0, count: -11 ddb> show registers rdi 0 rsi 0xd10038e9aee558e9 rbp 0xffff80001d77ea40 rbx 0xd10038e9aee558e9 rdx 0xffff80001d77e990 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0x5 r10 0x36e7fecc93606e49 r11 0x6f84f29f1d12f45 r12 0xfffffd806217dc00 r13 0xd10038e9aee558e9 r14 0xffffffff82808ac8 mbpool r15 0xfffffd8061babe98 rip 0xffffffff81210bce pool_do_put+0x12e cs 0x8 rflags 0x10216 __ALIGN_SIZE+0xf216 rsp 0xffff80001d77e990 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=174461 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6aa118,0xffffffff827e55d8 process=0xffff80001d6c5970 user=0xffff80001d77a000, vmspace=0xfffffd806bc09220 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *38345 174461 49607 0 7 0 syz-executor.0 49607 152298 99315 0 3 0x82 nanosleep syz-executor.0 99315 487119 65972 0 3 0x82 thrsleep syz-execprog 99315 344574 65972 0 3 0x4000082 nanosleep syz-execprog 99315 459518 65972 0 3 0x4000082 thrsleep syz-execprog 99315 135389 65972 0 3 0x4000082 thrsleep syz-execprog 99315 166026 65972 0 3 0x4000082 thrsleep syz-execprog 99315 455306 65972 0 3 0x4000082 kqread syz-execprog 99315 393325 65972 0 3 0x4000082 thrsleep syz-execprog 99315 166695 65972 0 3 0x4000082 thrsleep syz-execprog 65972 166738 69216 0 3 0x10008a pause ksh 69216 358684 57144 0 3 0x92 select sshd 28109 517952 1 0 3 0x100083 ttyin getty 57144 196564 1 0 3 0x80 select sshd 53031 400475 42927 73 3 0x100090 kqread syslogd 42927 518249 1 0 3 0x100082 netio syslogd 35031 23663 1 77 3 0x100090 poll dhclient 39413 319801 1 0 3 0x80 poll dhclient 52359 392743 0 0 3 0x14200 bored smr 27483 101217 0 0 2 0x14200 zerothread 74758 230604 0 0 3 0x14200 aiodoned aiodoned 62201 283298 0 0 3 0x14200 syncer update 50392 161779 0 0 3 0x14200 cleaner cleaner 13938 433732 0 0 3 0x14200 reaper reaper 81962 475757 0 0 3 0x14200 pgdaemon pagedaemon 33252 127522 0 0 3 0x14200 bored crynlk 62447 311895 0 0 3 0x14200 bored crypto 92897 103123 0 0 3 0x40014200 acpi0 acpi0 73796 298550 0 0 3 0x14200 bored softnet 67334 279834 0 0 3 0x14200 bored systqmp 7072 283389 0 0 3 0x14200 bored systq 56202 490042 0 0 3 0x40014200 bored softclock 38458 93875 0 0 3 0x40014200 idle0 1 47388 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 81 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 66 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 68 11K 12K 78643K 885 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 1719 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 75 0 68 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 1463 0 69 88 0 88 88 0 8 0 ffsino 240 1463 0 69 83 0 83 83 0 8 1 nchpl 144 1730 0 133 60 0 60 60 0 8 0 uvmvnodes 72 1472 0 0 27 0 27 27 0 8 0 vnodes 208 1472 0 0 78 0 78 78 0 8 0 namei 1024 4131 0 4131 2 1 1 1 0 8 1 scxspl 192 4706 0 4706 2 1 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 260 0 233 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 432 246 0 233 2 0 2 2 0 8 0 filepl 120 1075 0 1021 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 144 233 0 233 2 1 1 1 0 8 1 processpl 928 260 0 233 4 0 4 4 0 8 0 procpl 624 267 0 233 3 0 3 3 0 8 0 sockpl 400 119 0 102 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5542 0 5514 6 2 4 6 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9703 0 9626 5 0 5 5 0 8 0 mbufpl: pool(0xffffffff82808ac8:mbufpl): free list modified: page 0xfffffd806217d000; item ordinal 0; addr 0xfffffd806217dd00 (p 0xfffffd8061bab000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd806217d000; item ordinal 0; addr 0xfffffd806217dd00 (p 0xfffffd8061bab000); offset 0x0=0x0 mbufpl: pool(0xffffffff82808ac8:mbufpl): page inconsistency: page 0xfffffd806217d000; item ordinal 1; addr 0xd10038e9aee558e9 bufpl 280 3010 0 126 206 0 206 206 0 8 0 anonpl 16 21575 0 20025 14 2 12 12 0 107 5 amapchunkpl 152 788 0 727 4 0 4 4 0 158 1 amappl16 192 275 0 241 2 0 2 2 0 8 0 amappl15 184 51 0 48 1 0 1 1 0 8 0 amappl14 176 27 0 23 1 0 1 1 0 8 0 amappl13 168 21 0 18 2 1 1 1 0 8 0 amappl12 160 5 0 3 2 1 1 1 0 8 0 amappl11 152 44 0 35 1 0 1 1 0 8 0 amappl10 144 60 0 55 1 0 1 1 0 8 0 amappl9 136 214 0 213 1 0 1 1 0 8 0 amappl8 128 233 0 227 1 0 1 1 0 8 0 amappl7 120 152 0 139 1 0 1 1 0 8 0 amappl6 112 23 0 21 2 1 1 1 0 8 0 amappl5 104 198 0 187 1 0 1 1 0 8 0 amappl4 96 423 0 401 1 0 1 1 0 8 0 amappl3 88 107 0 101 1 0 1 1 0 8 0 amappl2 80 897 0 840 3 1 2 2 0 8 0 amappl1 72 14161 0 13757 23 6 17 17 0 8 7 amappl 80 467 0 441 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 24 246 0 233 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 246 0 233 1 0 1 1 0 8 0 vmmpekpl 168 6179 0 6158 2 0 2 2 0 8 1 vmmpepl 168 31430 0 30529 88 18 70 70 0 357 30 vmsppl 272 245 0 233 1 0 1 1 0 8 0 pdppl 4096 498 0 466 5 0 5 5 0 8 0 pvpl 32 110385 0 106533 108 6 102 102 0 265 70 pmappl 200 245 0 233 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(ffffffff82808ac8,fffffd806217dc00) at pool_do_put+0x12e pool_put(ffffffff82808ac8,fffffd806217dc00) at pool_put+0x4b m_free(fffffd806217dc00) at m_free+0x119 rt_ifa_del(ffff8000006b5400,800100,ffff8000006b5440,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5400,ffff800000ac3800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac3800,ffff80001d77eff0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77eff0,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da76c88,8080691a,ffff80001d77eff0,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d77f108,ffff80001d77f150) at sys_ioctl+0x4a1 syscall(ffff80001d77f1d0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcb4a0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82808ac8,fffffd806217dc00) at pool_do_put+0x12e pool_put(ffffffff82808ac8,fffffd806217dc00) at pool_put+0x4b m_free(fffffd806217dc00) at m_free+0x119 rt_ifa_del(ffff8000006b5400,800100,ffff8000006b5440,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5400,ffff800000ac3800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac3800,ffff80001d77eff0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77eff0,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da76c88,8080691a,ffff80001d77eff0,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d77f108,ffff80001d77f150) at sys_ioctl+0x4a1 syscall(ffff80001d77f1d0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcb4a0, count: -11 ddb>