kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Tue Jul 7 19:23:16 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-2.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.221' (ECDSA) to the list of known hosts. 2020/07/07 19:23:36 parsed 1 programs 2020/07/07 19:23:42 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(ffffffff828126c8,fffffd805a706d00) at pool_do_put+0x12e pool_put(ffffffff828126c8,fffffd805a706d00) at pool_put+0x4b m_free(fffffd805a706d00) 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,ffff80001d776fd0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d776fd0,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da5ec88,8080691a,ffff80001d776fd0,ffff80001d6aa118) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa118,ffff80001d7770e8,ffff80001d777130) at sys_ioctl+0x4a1 syscall(ffff80001d7771b0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff3b10, count: -11 ddb> show registers rdi 0 rsi 0x65a7cfed5d449b50 rbp 0xffff80001d776a20 rbx 0x65a7cfed5d449b50 rdx 0xffff80001d776970 rcx 0x1000 __ALIGN_SIZE rax 0x1 r8 0x4 r9 0 r10 0xb804f4dce95bd5d0 r11 0xe7acbc4f95300429 r12 0xfffffd805a706d00 r13 0x65a7cfed5d449b50 r14 0xffffffff828126c8 mbpool r15 0xfffffd806c3c4d20 rip 0xffffffff816b1dce pool_do_put+0x12e cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80001d776970 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=46253 stat=onproc flags process=0 proc=0 pri=50, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a9ea8,0xffffffff82815730 process=0xffff80001d6c4af0 user=0xffff80001d772000, vmspace=0xfffffd806bc09770 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *16460 46253 47194 0 7 0 syz-executor.0 47194 146568 40321 0 3 0x82 nanosleep syz-executor.0 40321 121835 48259 0 3 0x82 thrsleep syz-execprog 40321 416661 48259 0 3 0x4000082 nanosleep syz-execprog 40321 122457 48259 0 3 0x4000082 thrsleep syz-execprog 40321 59880 48259 0 3 0x4000082 thrsleep syz-execprog 40321 327606 48259 0 3 0x4000082 kqread syz-execprog 40321 383293 48259 0 3 0x4000082 thrsleep syz-execprog 40321 281086 48259 0 3 0x4000082 thrsleep syz-execprog 48259 335339 66045 0 3 0x10008a pause ksh 66045 145968 86517 0 3 0x92 select sshd 77998 220235 1 0 3 0x100083 ttyin getty 86517 516818 1 0 3 0x80 select sshd 92298 431549 57308 73 3 0x100090 kqread syslogd 57308 260155 1 0 3 0x100082 netio syslogd 59295 36075 1 77 3 0x100090 poll dhclient 66618 73500 1 0 3 0x80 poll dhclient 97937 348269 0 0 3 0x14200 bored smr 56776 241536 0 0 2 0x14200 zerothread 78170 337684 0 0 3 0x14200 aiodoned aiodoned 16953 97802 0 0 3 0x14200 syncer update 78551 243009 0 0 3 0x14200 cleaner cleaner 82463 152157 0 0 3 0x14200 reaper reaper 11382 304222 0 0 3 0x14200 pgdaemon pagedaemon 25879 283979 0 0 3 0x14200 bored crynlk 71904 59102 0 0 3 0x14200 bored crypto 68183 98670 0 0 3 0x40014200 acpi0 acpi0 86854 387760 0 0 3 0x14200 bored softnet 28610 108926 0 0 3 0x14200 bored systqmp 49906 240108 0 0 3 0x14200 bored systq 26827 468285 0 0 3 0x40014200 bored softclock 23366 249064 0 0 3 0x40014200 idle0 1 376612 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 836 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 1623 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 4240 0 4240 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 624 218 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 5551 0 5517 8 3 5 8 0 8 0 mtagpl 96 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9661 0 9583 7 1 6 6 0 8 0 mbufpl: pool(0xffffffff828126c8:mbufpl): free list modified: page 0xfffffd805a706000; item ordinal 13; addr 0xfffffd805a706e00 (p 0xfffffd806c3c4000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd805a706000; item ordinal 13; addr 0xfffffd805a706e00 (p 0xfffffd806c3c4000); offset 0x0=0x0 mbufpl: pool(0xffffffff828126c8:mbufpl): page inconsistency: page 0xfffffd805a706000; item ordinal 14; addr 0x65a7cfed5d449b50 bufpl 280 2960 0 126 203 0 203 203 0 8 0 anonpl 16 20273 0 18766 14 2 12 12 0 107 3 amapchunkpl 152 729 0 668 4 0 4 4 0 158 1 amappl16 192 126 0 97 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 30 0 24 1 0 1 1 0 8 0 amappl13 168 20 0 18 2 1 1 1 0 8 0 amappl12 160 6 0 4 2 1 1 1 0 8 0 amappl11 152 43 0 34 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 207 0 205 1 0 1 1 0 8 0 amappl8 128 237 0 230 1 0 1 1 0 8 0 amappl7 120 101 0 91 1 0 1 1 0 8 0 amappl6 112 21 0 17 2 1 1 1 0 8 0 amappl5 104 166 0 155 1 0 1 1 0 8 0 amappl4 96 430 0 405 1 0 1 1 0 8 0 amappl3 88 105 0 100 1 0 1 1 0 8 0 amappl2 80 806 0 752 3 1 2 2 0 8 0 amappl1 72 13630 0 13226 24 7 17 17 0 8 8 amappl 80 420 0 394 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 6069 0 6048 2 0 2 2 0 8 0 vmmpepl 168 29218 0 28336 80 11 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 104905 0 101109 105 3 102 102 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 112 218 0 9 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pool_do_put(ffffffff828126c8,fffffd805a706d00) at pool_do_put+0x12e pool_put(ffffffff828126c8,fffffd805a706d00) at pool_put+0x4b m_free(fffffd805a706d00) 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,ffff80001d776fd0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d776fd0,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da5ec88,8080691a,ffff80001d776fd0,ffff80001d6aa118) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa118,ffff80001d7770e8,ffff80001d777130) at sys_ioctl+0x4a1 syscall(ffff80001d7771b0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff3b10, count: -11 ddb> machine ddbcpu 1 No such command ddb> trace pool_do_put(ffffffff828126c8,fffffd805a706d00) at pool_do_put+0x12e pool_put(ffffffff828126c8,fffffd805a706d00) at pool_put+0x4b m_free(fffffd805a706d00) 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,ffff80001d776fd0,0) at in6_update_ifa+0x13e7 in6_ioctl_change_ifaddr(8080691a,ffff80001d776fd0,ffff800000ac3800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd805da5ec88,8080691a,ffff80001d776fd0,ffff80001d6aa118) at ifioctl+0xe60 sys_ioctl(ffff80001d6aa118,ffff80001d7770e8,ffff80001d777130) at sys_ioctl+0x4a1 syscall(ffff80001d7771b0) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff3b10, count: -11 ddb>