kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Sun Dec 1 13:55:30 PST 2019 OpenBSD/amd64 (ci-openbsd-main-6.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.226' (ECDSA) to the list of known hosts. 2019/12/01 13:55:45 parsed 1 programs 2019/12/01 13:55:51 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(ffffffff8256d040,fffffd80330c2b00) at pool_do_put+0x12e pool_put(ffffffff8256d040,fffffd80330c2b00) at pool_put+0x4b m_free(fffffd80330c2b00) at m_free+0x119 rt_ifa_del(ffff8000006a2600,800100,ffff8000006a2640,0) at rt_ifa_del+0x436 in6_unlink_ifa(ffff8000006a2600,ffff800000a69800) at in6_unlink_ifa+0x571 in6_update_ifa(ffff800000a69800,ffff800014918060,0) at in6_update_ifa+0x13f7 in6_ioctl_change_ifaddr(8080691a,ffff800014918060,ffff800000a69800) at in6_ioctl_change_ifaddr+0x40c ifioctl(fffffd80363d1908,8080691a,ffff800014918060,ffff8000ffff8a28) at ifioctl+0xe60 sys_ioctl(ffff8000ffff8a28,ffff800014918178,ffff8000149181c0) at sys_ioctl+0x5b9 syscall(ffff800014918240) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc6d60, count: -11 ddb> show registers rdi 0 rsi 0x601c010dfda46dfc rbp 0xffff800014917ab0 rbx 0x601c010dfda46dfc rdx 0xffff800014917a00 rcx 0x1000 __ALIGN_SIZE rax 0xfffffd80330c3000 r8 0x4 r9 0x5 r10 0x2c4eff5a0a64738 r11 0x3a345e4b7801e0a7 r12 0xfffffd80330c2b00 r13 0x601c010dfda46dfc r14 0xffffffff8256d040 mbpool r15 0xfffffd803a655398 rip 0xffffffff81e237de pool_do_put+0x12e cs 0x8 rflags 0x10292 __ALIGN_SIZE+0xf292 rsp 0xffff800014917a00 ss 0x10 pool_do_put+0x12e: movq 0x8(%rbx),%rbx ddb> show proc PROC (syz-executor.0) pid=5019 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8290,0xffffffff825b2828 process=0xffff8000148a3180 user=0xffff800014913000, vmspace=0xfffffd803f012330 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *67674 5019 61717 0 7 0 syz-executor.0 61717 224193 48860 0 3 0x82 nanosleep syz-executor.0 48860 203653 86515 0 3 0x82 thrsleep syz-execprog 48860 299668 86515 0 3 0x4000082 nanosleep syz-execprog 48860 113374 86515 0 3 0x4000082 thrsleep syz-execprog 48860 108969 86515 0 3 0x4000082 thrsleep syz-execprog 48860 243926 86515 0 3 0x4000082 kqread syz-execprog 48860 248069 86515 0 3 0x4000082 thrsleep syz-execprog 48860 386586 86515 0 3 0x4000082 thrsleep syz-execprog 86515 290620 72246 0 3 0x10008a pause ksh 72246 345478 11041 0 3 0x92 select sshd 91865 212667 1 0 3 0x100083 ttyin getty 11041 170342 1 0 3 0x80 select sshd 75371 319360 11205 73 3 0x100090 kqread syslogd 11205 432941 1 0 3 0x100082 netio syslogd 41700 68713 1 77 3 0x100090 poll dhclient 87037 252325 1 0 3 0x80 poll dhclient 12184 220703 0 0 2 0x14200 zerothread 50384 72339 0 0 3 0x14200 aiodoned aiodoned 16338 474324 0 0 3 0x14200 syncer update 64813 176048 0 0 3 0x14200 cleaner cleaner 62820 194132 0 0 3 0x14200 reaper reaper 33108 44 0 0 3 0x14200 pgdaemon pagedaemon 27475 269219 0 0 3 0x14200 bored crynlk 6663 91369 0 0 3 0x14200 bored crypto 22389 215782 0 0 3 0x40014200 acpi0 acpi0 89052 32107 0 0 3 0x14200 bored softnet 91945 394024 0 0 3 0x14200 bored systqmp 99887 78702 0 0 3 0x14200 bored systq 83112 370132 0 0 3 0x40014200 bored softclock 76961 48605 0 0 3 0x40014200 idle0 86119 89047 0 0 3 0x14200 bored smr 1 478897 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 9442 6320K 6320K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 33 9K 9K 78643K 33 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1180 74K 74K 78643K 1185 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 1794 195K 288K 78643K 12646 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 18 79K 79K 78643K 18 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 12K 78643K 851 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 6 0K 0K 78643K 6 0 temp 27 3545K 3609K 78643K 3027 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 96 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 280 5 0 5 1 0 1 1 0 8 1 tcpcb 640 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 1637 0 35 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 208 3981 0 3981 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 128 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 896 211 0 184 4 0 4 4 0 8 0 procpl 648 217 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 5484 0 5448 8 2 6 8 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9487 0 9408 8 2 6 6 0 8 0 mbufpl: pool(0xffffffff8256d040:mbufpl): free list modified: page 0xfffffd80330c2000; item ordinal 11; addr 0xfffffd80330c2c00 (p 0xfffffd803a655000); offset 0x0=0x0 pool(mbufpl): free list modified: page 0xfffffd80330c2000; item ordinal 11; addr 0xfffffd80330c2c00 (p 0xfffffd803a655000); offset 0x0=0x0 mbufpl: pool(0xffffffff8256d040:mbufpl): page inconsistency: page 0xfffffd80330c2000; item ordinal 12; addr 0x601c010dfda46dfc bufpl 280 5783 0 1323 319 0 319 319 0 8 0 anonpl 16 20606 0 19142 14 1 13 13 0 62 6 amapchunkpl 152 814 0 754 5 0 5 5 0 158 2 amappl16 192 125 0 97 2 0 2 2 0 8 0 amappl14 176 54 0 47 1 0 1 1 0 8 0 amappl12 160 13 0 11 1 0 1 1 0 8 0 amappl11 152 45 0 34 1 0 1 1 0 8 0 amappl10 144 9 0 8 1 0 1 1 0 8 0 amappl9 136 393 0 390 1 0 1 1 0 8 0 amappl8 128 114 0 102 1 0 1 1 0 8 0 amappl7 120 28 0 26 1 0 1 1 0 8 0 amappl6 112 57 0 50 1 0 1 1 0 8 0 amappl5 104 132 0 123 1 0 1 1 0 8 0 amappl4 96 419 0 398 1 0 1 1 0 8 0 amappl3 88 116 0 111 1 0 1 1 0 8 0 amappl2 80 824 0 767 3 0 3 3 0 8 1 amappl1 72 13276 0 12876 26 8 18 20 0 8 8 amappl 80 431 0 405 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 6149 0 6134 1 0 1 1 0 8 0 vmmpepl 168 28699 0 27837 86 9 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 103916 0 100149 113 0 113 113 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 112 123 0 6 4 0 4 4 0 8 0 ddb>