kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Wed Nov 20 07:00:22 PST 2019 OpenBSD/amd64 (ci-openbsd-main-0.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts. 2019/11/20 07:01:25 parsed 1 programs 2019/11/20 07:01:29 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(ffffffff825a0420,fffffd8035d4d300) at pool_do_put+0x12e pool_put(ffffffff825a0420,fffffd8035d4d300) at pool_put+0x4b m_free(fffffd8035d4d300) at m_free+0x119 rt_ifa_del(ffff8000006a2600,800100,ffff8000006a2640,0) at rt_ifa_del+0x436 in6_unlink_ifa(ffff8000006a2600,ffff800000a65800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000a65800,ffff80001491aaa0,0) at in6_update_ifa+0x13f7 in6_ioctl_change_ifaddr(8080691a,ffff80001491aaa0,ffff800000a65800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd80363d5788,8080691a,ffff80001491aaa0,ffff8000ffff8770) at ifioctl+0xe60 sys_ioctl(ffff8000ffff8770,ffff80001491abb8,ffff80001491ac00) at sys_ioctl+0x5b9 syscall(ffff80001491ac80) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd9be0, count: -11 ddb> show registers rdi 0 rsi 0x854e713eaed42e8a rbp 0xffff80001491a4f0 rbx 0x854e713eaed42e8a rdx 0xffff80001491a440 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd8035d4e000 r8 0x4 r9 0x5 r10 0xa67fba6b18138ca7 r11 0xaeb42cbaa06f4c27 r12 0xfffffd8035d4d300 r13 0x854e713eaed42e8a r14 0xffffffff825a0420 mbpool r15 0xfffffd803508c960 rip 0xffffffff8102032e pool_do_put+0x12e cs 0x8 rflags 0x10212 __ALIGN_SIZE+0xf212 rsp 0xffff80001491a440 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=153998 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff82587878 process=0xffff8000148a30f8 user=0xffff800014915000, vmspace=0xfffffd803f011220 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *52648 153998 75830 0 7 0 syz-executor.0 75830 483936 52183 0 3 0x82 nanosleep syz-executor.0 52183 292899 33202 0 3 0x82 thrsleep syz-execprog 52183 199228 33202 0 3 0x4000082 nanosleep syz-execprog 52183 407520 33202 0 3 0x4000082 thrsleep syz-execprog 52183 379633 33202 0 3 0x4000082 thrsleep syz-execprog 52183 34232 33202 0 3 0x4000082 thrsleep syz-execprog 52183 393518 33202 0 3 0x4000082 kqread syz-execprog 52183 219727 33202 0 3 0x4000082 thrsleep syz-execprog 33202 137671 62411 0 3 0x10008a pause ksh 62411 299175 78603 0 3 0x92 select sshd 88042 63454 1 0 3 0x100083 ttyin getty 78603 139110 1 0 3 0x80 select sshd 58652 97099 65597 73 3 0x100090 kqread syslogd 65597 485673 1 0 3 0x100082 netio syslogd 64143 282546 1 77 3 0x100090 poll dhclient 55344 427746 1 0 3 0x80 poll dhclient 79411 428553 0 0 2 0x14200 zerothread 66418 316118 0 0 3 0x14200 aiodoned aiodoned 48419 282294 0 0 3 0x14200 syncer update 10327 407495 0 0 3 0x14200 cleaner cleaner 66045 295631 0 0 3 0x14200 reaper reaper 64536 248107 0 0 3 0x14200 pgdaemon pagedaemon 60016 134068 0 0 3 0x14200 bored crynlk 12789 102378 0 0 3 0x14200 bored crypto 16216 486794 0 0 3 0x40014200 acpi0 acpi0 83863 304101 0 0 3 0x14200 bored softnet 95547 162497 0 0 3 0x14200 bored systqmp 81717 368331 0 0 3 0x14200 bored systq 35962 374865 0 0 3 0x40014200 bored softclock 92004 54805 0 0 3 0x40014200 idle0 59603 476278 0 0 3 0x14200 bored smr 1 522451 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 Kern Lim devbuf 9442 6320K 6320K 78643K 10539 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 83 2K 2K 78643K 153 0 0 ifaddr 33 9K 9K 78643K 33 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1180 74K 74K 78643K 1185 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1794 195K 288K 78643K 12646 0 0 file desc 3 8K 12K 78643K 18 0 0 proc 47 38K 54K 78643K 318 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 22 1K 1K 78643K 22 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 171 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 70 11K 12K 78643K 838 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 6 0K 0K 78643K 6 0 0 temp 27 3521K 3585K 78643K 3027 0 0 SYN cache 2 16K 16K 78643K 2 0 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 280 27 0 20 1 0 1 1 0 8 0 nd6 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 168 0 0 11 0 11 11 0 8 0 art_table 32 169 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 dino1pl 128 1412 0 19 45 0 45 45 0 8 0 ffsino 240 1412 0 19 82 0 82 82 0 8 0 nchpl 144 1651 0 50 60 0 60 60 0 8 0 uvmvnodes 72 1421 0 0 26 0 26 26 0 8 0 vnodes 208 1421 0 0 75 0 75 75 0 8 0 namei 1024 3836 0 3836 2 1 1 1 0 8 1 scxspl 192 4146 0 4146 10 9 1 7 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 196 0 184 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 128 134 0 121 2 1 1 1 0 8 0 fdescpl 424 197 0 184 2 0 2 2 0 8 0 filepl 120 973 0 919 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 47 0 40 1 0 1 1 0 8 0 zombiepl 144 184 0 184 2 1 1 1 0 8 1 processpl 864 211 0 184 4 0 4 4 0 8 0 procpl 632 217 0 184 3 0 3 3 0 8 0 sockpl 384 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5478 0 5446 8 3 5 8 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9493 0 9418 7 2 5 6 0 8 0 mbufpl: pool(0xffffffff825a0420:mbufpl): free list modified: page 0xfffffd8035d4d000; item ordinal 0; addr 0xfffffd8035d4d400 (p 0xfffffd803508c000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd8035d4d000; item ordinal 0; addr 0xfffffd8035d4d400 (p 0xfffffd803508c000); offset 0x0=0x0 mbufpl: pool(0xffffffff825a0420:mbufpl): page inconsistency: page 0xfffffd8035d4d000; item ordinal 1; addr 0x854e713eaed42e8a bufpl 256 5780 0 1322 279 0 279 279 0 8 0 anonpl 16 20081 0 18623 15 2 13 13 0 62 6 amapchunkpl 152 777 0 717 5 0 5 5 0 158 2 amappl16 192 122 0 92 2 0 2 2 0 8 0 amappl14 176 45 0 39 1 0 1 1 0 8 0 amappl13 168 2 0 0 1 0 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 47 0 35 1 0 1 1 0 8 0 amappl10 144 11 0 9 1 0 1 1 0 8 0 amappl9 136 373 0 369 1 0 1 1 0 8 0 amappl8 128 114 0 105 1 0 1 1 0 8 0 amappl7 120 31 0 29 1 0 1 1 0 8 0 amappl6 112 56 0 49 1 0 1 1 0 8 0 amappl5 104 187 0 177 1 0 1 1 0 8 0 amappl4 96 425 0 400 1 0 1 1 0 8 0 amappl3 88 116 0 111 1 0 1 1 0 8 0 amappl2 80 838 0 782 4 1 3 3 0 8 1 amappl1 72 13334 0 12943 26 8 18 20 0 8 8 amappl 80 419 0 393 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 197 0 184 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 197 0 184 1 0 1 1 0 8 0 vmmpekpl 168 6167 0 6151 1 0 1 1 0 8 0 vmmpepl 168 28797 0 27937 95 19 76 76 0 357 37 vmsppl 272 196 0 184 1 0 1 1 0 8 0 pdppl 4096 400 0 368 5 0 5 5 0 8 0 pvpl 32 103416 0 99647 120 7 113 113 0 265 82 pmappl 200 196 0 184 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 404 0 9 12 0 12 12 0 8 0 ddb>