kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Wed Jul 8 13:08:32 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-6.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.1.39' (ECDSA) to the list of known hosts. 2020/07/08 13:09:02 parsed 1 programs 2020/07/08 13:09:08 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(ffffffff82842350,fffffd805c0add00) at pool_do_put+0x12e pool_put(ffffffff82842350,fffffd805c0add00) at pool_put+0x4b m_free(fffffd805c0add00) at m_free+0x119 rt_ifa_del(ffff8000006b5400,800100,ffff8000006b5440,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5400,ffff800000ac4800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac4800,ffff80001d7772d0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d7772d0,ffff800000ac4800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da6f648,8080691a,ffff80001d7772d0,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d7773e8,ffff80001d777430) at sys_ioctl+0x4a1 syscall(ffff80001d7774b0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe01a0, count: -11 ddb> show registers rdi 0 rsi 0x48330bb9691ae970 rbp 0xffff80001d776d20 rbx 0x48330bb9691ae970 rdx 0xffff80001d776c70 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0x5 r10 0xcb7ffa1c2f9d2225 r11 0xe540e91c0758dab7 r12 0xfffffd805c0add00 r13 0x48330bb9691ae970 r14 0xffffffff82842350 mbpool r15 0xfffffd806c3c4e70 rip 0xffffffff81b1a2be pool_do_put+0x12e cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff80001d776c70 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=246622 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a9278,0xffffffff828369a0 process=0xffff80001d6c55d0 user=0xffff80001d772000, vmspace=0xfffffd806bc0a330 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *98215 246622 33663 0 7 0 syz-executor.0 33663 296807 72943 0 3 0x82 nanosleep syz-executor.0 72943 510160 21313 0 3 0x82 kqread syz-execprog 72943 422733 21313 0 3 0x4000082 nanosleep syz-execprog 72943 385239 21313 0 3 0x4000082 thrsleep syz-execprog 72943 459061 21313 0 3 0x4000082 thrsleep syz-execprog 72943 156887 21313 0 3 0x4000082 thrsleep syz-execprog 72943 367238 21313 0 3 0x4000082 thrsleep syz-execprog 72943 431648 21313 0 3 0x4000082 thrsleep syz-execprog 21313 382239 27931 0 3 0x10008a pause ksh 27931 432109 89250 0 3 0x92 select sshd 88756 238250 1 0 3 0x100083 ttyin getty 89250 205689 1 0 3 0x80 select sshd 69551 68210 39613 73 3 0x100090 kqread syslogd 39613 95510 1 0 3 0x100082 netio syslogd 73030 83087 1 77 3 0x100090 poll dhclient 57441 352456 1 0 3 0x80 poll dhclient 33330 162137 0 0 3 0x14200 bored smr 69955 514568 0 0 2 0x14200 zerothread 8207 71868 0 0 3 0x14200 aiodoned aiodoned 76889 267561 0 0 3 0x14200 syncer update 47880 281974 0 0 3 0x14200 cleaner cleaner 55008 220614 0 0 3 0x14200 reaper reaper 65396 442278 0 0 3 0x14200 pgdaemon pagedaemon 75876 462450 0 0 3 0x14200 bored crynlk 78900 239917 0 0 3 0x14200 bored crypto 76650 449871 0 0 3 0x40014200 acpi0 acpi0 32524 500160 0 0 3 0x14200 bored softnet 23835 23190 0 0 3 0x14200 bored systqmp 29044 92208 0 0 3 0x14200 bored systq 79708 420832 0 0 3 0x40014200 bored softclock 56450 506198 0 0 3 0x40014200 idle0 1 91314 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 68 11K 12K 78643K 860 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 4378 0 4378 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 5555 0 5520 8 3 5 8 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9694 0 9615 7 1 6 6 0 8 0 mbufpl: pool(0xffffffff82842350:mbufpl): free list modified: page 0xfffffd805c0ad000; item ordinal 13; addr 0xfffffd805c0ade00 (p 0xfffffd806c3c4000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd805c0ad000; item ordinal 13; addr 0xfffffd805c0ade00 (p 0xfffffd806c3c4000); offset 0x0=0x0 mbufpl: pool(0xffffffff82842350:mbufpl): page inconsistency: page 0xfffffd805c0ad000; item ordinal 14; addr 0x48330bb9691ae970 bufpl 280 2958 0 125 203 0 203 203 0 8 0 anonpl 16 21950 0 20443 14 2 12 12 0 107 4 amapchunkpl 152 821 0 760 4 0 4 4 0 158 1 amappl16 192 140 0 112 2 0 2 2 0 8 0 amappl15 184 3 0 0 1 0 1 1 0 8 0 amappl14 176 25 0 22 1 0 1 1 0 8 0 amappl13 168 20 0 18 2 1 1 1 0 8 0 amappl12 160 11 0 8 2 1 1 1 0 8 0 amappl11 152 42 0 33 1 0 1 1 0 8 0 amappl10 144 15 0 10 1 0 1 1 0 8 0 amappl9 136 224 0 223 1 0 1 1 0 8 0 amappl8 128 234 0 228 1 0 1 1 0 8 0 amappl7 120 107 0 92 1 0 1 1 0 8 0 amappl6 112 22 0 18 1 0 1 1 0 8 0 amappl5 104 131 0 122 1 0 1 1 0 8 0 amappl4 96 429 0 404 1 0 1 1 0 8 0 amappl3 88 105 0 100 1 0 1 1 0 8 0 amappl2 80 806 0 752 2 0 2 2 0 8 0 amappl1 72 13764 0 13366 24 7 17 17 0 8 8 amappl 80 443 0 417 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 29340 0 28463 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 106777 0 102981 110 8 102 102 0 265 69 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 112 219 0 9 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff82842350,fffffd805c0add00) at pool_do_put+0x12e pool_put(ffffffff82842350,fffffd805c0add00) at pool_put+0x4b m_free(fffffd805c0add00) at m_free+0x119 rt_ifa_del(ffff8000006b5400,800100,ffff8000006b5440,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5400,ffff800000ac4800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac4800,ffff80001d7772d0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d7772d0,ffff800000ac4800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da6f648,8080691a,ffff80001d7772d0,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d7773e8,ffff80001d777430) at sys_ioctl+0x4a1 syscall(ffff80001d7774b0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe01a0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82842350,fffffd805c0add00) at pool_do_put+0x12e pool_put(ffffffff82842350,fffffd805c0add00) at pool_put+0x4b m_free(fffffd805c0add00) at m_free+0x119 rt_ifa_del(ffff8000006b5400,800100,ffff8000006b5440,0) at rt_ifa_del+0x402 in6_unlink_ifa(ffff8000006b5400,ffff800000ac4800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000ac4800,ffff80001d7772d0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d7772d0,ffff800000ac4800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da6f648,8080691a,ffff80001d7772d0,ffff80001d6a94e8) at ifioctl+0xe60 sys_ioctl(ffff80001d6a94e8,ffff80001d7773e8,ffff80001d777430) at sys_ioctl+0x4a1 syscall(ffff80001d7774b0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe01a0, count: -11 ddb>