kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Mon Nov 25 15:59:11 PST 2019 OpenBSD/amd64 (ci-openbsd-main-4.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.219' (ECDSA) to the list of known hosts. 2019/11/25 15:59:22 parsed 1 programs 2019/11/25 15:59:28 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(ffffffff825871b0,fffffd803e378000) at pool_do_put+0x12e pool_put(ffffffff825871b0,fffffd803e378000) at pool_put+0x4b m_free(fffffd803e378000) at m_free+0x119 rt_ifa_del(ffff8000006a2400,800100,ffff8000006a2440,0) at rt_ifa_del+0x436 in6_unlink_ifa(ffff8000006a2400,ffff800000a65800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000a65800,ffff8000149182b0,0) at in6_update_ifa+0x13f7 in6_ioctl_change_ifaddr(8080691a,ffff8000149182b0,ffff800000a65800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd80363dec08,8080691a,ffff8000149182b0,ffff8000ffff8008) at ifioctl+0xe60 sys_ioctl(ffff8000ffff8008,ffff8000149183c8,ffff800014918410) at sys_ioctl+0x5b9 syscall(ffff800014918490) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3780, count: -11 ddb> show registers rdi 0 rsi 0xb6eb65a85e4ffac9 rbp 0xffff800014917d00 rbx 0xb6eb65a85e4ffac9 rdx 0xffff800014917c50 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd803e379000 r8 0x4 r9 0x5 r10 0xd12d651884ebd3b2 r11 0xb99418a53bcd541f r12 0xfffffd803e378000 r13 0xb6eb65a85e4ffac9 r14 0xffffffff825871b0 mbpool r15 0xfffffd803135f9b0 rip 0xffffffff81b379fe pool_do_put+0x12e cs 0x8 rflags 0x10212 __ALIGN_SIZE+0xf212 rsp 0xffff800014917c50 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=413922 stat=onproc flags process=0 proc=0 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff84f8,0xffffffff825b1098 process=0xffff8000148a26d8 user=0xffff800014913000, vmspace=0xfffffd803f011110 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *51109 413922 26565 0 7 0 syz-executor.0 26565 267896 36302 0 3 0x82 nanosleep syz-executor.0 36302 125474 95238 0 3 0x82 thrsleep syz-execprog 36302 63732 95238 0 3 0x4000082 nanosleep syz-execprog 36302 508642 95238 0 3 0x4000082 thrsleep syz-execprog 36302 187132 95238 0 3 0x4000082 thrsleep syz-execprog 36302 321876 95238 0 3 0x4000082 thrsleep syz-execprog 36302 482752 95238 0 3 0x4000082 kqread syz-execprog 36302 88461 95238 0 3 0x4000082 thrsleep syz-execprog 95238 395044 85666 0 3 0x10008a pause ksh 85666 144213 63615 0 3 0x92 select sshd 18110 162944 1 0 3 0x100083 ttyin getty 63615 99321 1 0 3 0x80 select sshd 41129 14708 42735 73 3 0x100090 kqread syslogd 42735 69651 1 0 3 0x100082 netio syslogd 17211 285612 1 77 3 0x100090 poll dhclient 55561 98208 1 0 3 0x80 poll dhclient 1409 196384 0 0 2 0x14200 zerothread 90198 505517 0 0 3 0x14200 aiodoned aiodoned 22084 248399 0 0 3 0x14200 syncer update 96353 259738 0 0 3 0x14200 cleaner cleaner 17815 301930 0 0 3 0x14200 reaper reaper 82386 110218 0 0 3 0x14200 pgdaemon pagedaemon 35754 27483 0 0 3 0x14200 bored crynlk 5972 451450 0 0 3 0x14200 bored crypto 36298 418744 0 0 3 0x40014200 acpi0 acpi0 3169 427513 0 0 3 0x14200 bored softnet 80162 151220 0 0 3 0x14200 bored systqmp 49609 276773 0 0 3 0x14200 bored systq 27569 43470 0 0 3 0x40014200 bored softclock 64403 93306 0 0 3 0x40014200 idle0 24845 326879 0 0 3 0x14200 bored smr 1 73384 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 154 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 66 11K 11K 78643K 845 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 3025 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 1 0 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 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 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 1 0 1 1 0 8 1 scxspl 192 3980 0 3980 2 1 1 2 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 1 0 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 1 0 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 1 0 1 1 0 8 1 mcl2k 2048 5474 0 5445 7 2 5 7 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9434 0 9362 7 2 5 5 0 8 0 mbufpl: pool(0xffffffff825871b0:mbufpl): free list modified: page 0xfffffd803e378000; item ordinal 1; addr 0xfffffd803e378100 (p 0xfffffd803135f000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd803e378000; item ordinal 1; addr 0xfffffd803e378100 (p 0xfffffd803135f000); offset 0x0=0x0 mbufpl: pool(0xffffffff825871b0:mbufpl): page inconsistency: page 0xfffffd803e378000; item ordinal 2; addr 0xb6eb65a85e4ffac9 bufpl 256 5781 0 1322 279 0 279 279 0 8 0 anonpl 16 19997 0 18539 15 2 13 13 0 62 6 amapchunkpl 152 721 0 661 5 0 5 5 0 158 2 amappl16 192 130 0 101 2 0 2 2 0 8 0 amappl14 176 47 0 41 1 0 1 1 0 8 0 amappl12 160 7 0 5 1 0 1 1 0 8 0 amappl11 152 48 0 36 1 0 1 1 0 8 0 amappl10 144 9 0 8 1 0 1 1 0 8 0 amappl9 136 396 0 394 1 0 1 1 0 8 0 amappl8 128 111 0 102 1 0 1 1 0 8 0 amappl7 120 31 0 28 1 0 1 1 0 8 0 amappl6 112 66 0 55 1 0 1 1 0 8 0 amappl5 104 122 0 113 1 0 1 1 0 8 0 amappl4 96 422 0 399 1 0 1 1 0 8 0 amappl3 88 117 0 112 1 0 1 1 0 8 0 amappl2 80 834 0 778 3 0 3 3 0 8 1 amappl1 72 13266 0 12871 27 10 17 20 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 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 6146 0 6131 1 0 1 1 0 8 0 vmmpepl 168 28844 0 27980 84 7 77 77 0 357 39 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 103302 0 99539 113 0 113 113 0 265 81 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 112 401 0 6 12 0 12 12 0 8 0 ddb>