kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Tue Jul 7 00:21:16 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-2.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.154' (ECDSA) to the list of known hosts. 2020/07/07 00:21:35 parsed 1 programs 2020/07/07 00:21:38 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(ffffffff82832ed8,fffffd805c08cd00) at pool_do_put+0x12e pool_put(ffffffff82832ed8,fffffd805c08cd00) at pool_put+0x4b m_free(fffffd805c08cd00) 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,ffff80001d77ce00,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77ce00,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da5faf8,8080691a,ffff80001d77ce00,ffff80001d6a9278) at ifioctl+0xe60 sys_ioctl(ffff80001d6a9278,ffff80001d77cf18,ffff80001d77cf60) at sys_ioctl+0x4a1 syscall(ffff80001d77cfe0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe42a0, count: -11 ddb> show registers rdi 0 rsi 0x97c36c74d9c93240 rbp 0xffff80001d77c850 rbx 0x97c36c74d9c93240 rdx 0xffff80001d77c7a0 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0 r10 0x8a507ddebdb045ec r11 0x1a5e3971514316cb r12 0xfffffd805c08cd00 r13 0x97c36c74d9c93240 r14 0xffffffff82832ed8 mbpool r15 0xfffffd805d702958 rip 0xffffffff821629ce pool_do_put+0x12e cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80001d77c7a0 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=160521 stat=onproc flags process=0 proc=0 pri=51, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6aa118,0xffffffff8284f0f8 process=0xffff80001d6c4010 user=0xffff80001d778000, vmspace=0xfffffd806bc09dd0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *99789 160521 38260 0 7 0 syz-executor.0 38260 438229 94864 0 3 0x82 nanosleep syz-executor.0 94864 465753 33211 0 3 0x82 kqread syz-execprog 94864 147874 33211 0 3 0x4000082 nanosleep syz-execprog 94864 151892 33211 0 3 0x4000082 thrsleep syz-execprog 94864 365347 33211 0 3 0x4000082 thrsleep syz-execprog 94864 201861 33211 0 3 0x4000082 thrsleep syz-execprog 94864 217102 33211 0 3 0x4000082 thrsleep syz-execprog 94864 59595 33211 0 3 0x4000082 thrsleep syz-execprog 94864 434787 33211 0 3 0x4000082 thrsleep syz-execprog 33211 39009 82439 0 3 0x10008a pause ksh 82439 320369 49367 0 3 0x92 select sshd 3679 370680 1 0 3 0x100083 ttyin getty 49367 481282 1 0 3 0x80 select sshd 55096 144382 14748 73 3 0x100090 kqread syslogd 14748 89337 1 0 3 0x100082 netio syslogd 73429 42149 1 77 3 0x100090 poll dhclient 11119 133106 1 0 3 0x80 poll dhclient 62008 174005 0 0 3 0x14200 bored smr 39350 170501 0 0 2 0x14200 zerothread 12224 297290 0 0 3 0x14200 aiodoned aiodoned 44470 502295 0 0 3 0x14200 syncer update 73690 143234 0 0 3 0x14200 cleaner cleaner 86412 105837 0 0 3 0x14200 reaper reaper 55440 173716 0 0 3 0x14200 pgdaemon pagedaemon 66527 497162 0 0 3 0x14200 bored crynlk 5021 174037 0 0 3 0x14200 bored crypto 64084 302863 0 0 3 0x40014200 acpi0 acpi0 94737 505111 0 0 3 0x14200 bored softnet 91368 40470 0 0 3 0x14200 bored systqmp 76373 314282 0 0 3 0x14200 bored systq 96642 329276 0 0 3 0x40014200 bored softclock 34544 297852 0 0 3 0x40014200 idle0 1 259944 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 66 11K 11K 78643K 842 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 1624 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 256 144 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 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 4234 0 4234 1 0 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 624 219 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 5549 0 5515 8 3 5 8 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9641 0 9563 8 2 6 6 0 8 0 mbufpl: pool(0xffffffff82832ed8:mbufpl): free list modified: page 0xfffffd805c08c000; item ordinal 13; addr 0xfffffd805c08ce00 (p 0xfffffd805d702000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd805c08c000; item ordinal 13; addr 0xfffffd805c08ce00 (p 0xfffffd805d702000); offset 0x0=0x0 mbufpl: pool(0xffffffff82832ed8:mbufpl): page inconsistency: page 0xfffffd805c08c000; item ordinal 14; addr 0x97c36c74d9c93240 bufpl 280 2961 0 126 203 0 203 203 0 8 0 anonpl 16 20616 0 19117 14 2 12 12 0 107 3 amapchunkpl 152 727 0 666 4 0 4 4 0 158 1 amappl16 192 125 0 96 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 26 0 23 1 0 1 1 0 8 0 amappl13 168 21 0 18 2 1 1 1 0 8 0 amappl12 160 13 0 9 2 1 1 1 0 8 0 amappl11 152 50 0 38 1 0 1 1 0 8 0 amappl10 144 15 0 12 1 0 1 1 0 8 0 amappl9 136 207 0 206 1 0 1 1 0 8 0 amappl8 128 237 0 231 1 0 1 1 0 8 0 amappl7 120 103 0 92 1 0 1 1 0 8 0 amappl6 112 25 0 20 1 0 1 1 0 8 0 amappl5 104 163 0 154 1 0 1 1 0 8 0 amappl4 96 425 0 403 1 0 1 1 0 8 0 amappl3 88 106 0 100 1 0 1 1 0 8 0 amappl2 80 811 0 755 2 0 2 2 0 8 0 amappl1 72 13646 0 13247 24 7 17 17 0 8 8 amappl 80 425 0 399 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 6068 0 6046 2 0 2 2 0 8 0 vmmpepl 168 29528 0 28650 81 12 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 105156 0 101357 103 1 102 102 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 112 219 0 10 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff82832ed8,fffffd805c08cd00) at pool_do_put+0x12e pool_put(ffffffff82832ed8,fffffd805c08cd00) at pool_put+0x4b m_free(fffffd805c08cd00) 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,ffff80001d77ce00,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77ce00,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da5faf8,8080691a,ffff80001d77ce00,ffff80001d6a9278) at ifioctl+0xe60 sys_ioctl(ffff80001d6a9278,ffff80001d77cf18,ffff80001d77cf60) at sys_ioctl+0x4a1 syscall(ffff80001d77cfe0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe42a0, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff82832ed8,fffffd805c08cd00) at pool_do_put+0x12e pool_put(ffffffff82832ed8,fffffd805c08cd00) at pool_put+0x4b m_free(fffffd805c08cd00) 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,ffff80001d77ce00,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d77ce00,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da5faf8,8080691a,ffff80001d77ce00,ffff80001d6a9278) at ifioctl+0xe60 sys_ioctl(ffff80001d6a9278,ffff80001d77cf18,ffff80001d77cf60) at sys_ioctl+0x4a1 syscall(ffff80001d77cfe0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe42a0, count: -11 ddb>