kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Thu May 23 18:52:17 PDT 2019 OpenBSD/amd64 (ci-openbsd-setuid-1.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts. login: uvm_fault(0xfffffd806e8f4878, 0x110, 0, 1) -> e kernel: page fault trap, code=0 Stopped at mrt6_ioctl+0xa2: movl 0x110(%r12),%r15d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd806e8f4878, 0x110, 0, 1) -> e mrt6_ioctl(fffffd806ea94c08,c028756b,ffff800020ba7c10) at mrt6_ioctl+0xa2 end trace frame: 0xffff800020ba7d10, count: 0 ddb{1}> trace mrt6_ioctl(fffffd806ea94c08,c028756b,ffff800020ba7c10) at mrt6_ioctl+0xa2 sys_ioctl(ffff800020b85078,ffff800020ba7d38,ffff800020ba7da0) at sys_ioctl+0x5b8 syscall(ffff800020ba7e10) at syscall+0x552 Xsyscall(6,0,e7d3efec000,0,7f7ffffd3da8,7f7ffffd3d98) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3d20, count: -4 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020ba7c00 rbx 0xffff80000066e000 rdx 0x1 rcx 0 rax 0xd r8 0xffffffff81937b14 mrt6_ioctl+0x44 r9 0x7 r10 0xb6bdb82d09df9263 r11 0x987b58a3e6efcc74 r12 0 r13 0x28 r14 0xffff800020ba7c10 r15 0xc028756b rip 0xffffffff81937b72 mrt6_ioctl+0xa2 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020ba7ba0 ss 0x10 mrt6_ioctl+0xa2: movl 0x110(%r12),%r15d ddb{1}> show proc PROC (syz-executor1923) pid=212281 stat=onproc flags process=2 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020b844c0,0xffffffff82374f30 process=0xffff800020b8c6a8 user=0xffff800020ba2000, vmspace=0xfffffd806e8f4878 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *30704 212281 25216 0 7 0x2 syz-executor1923 25216 305106 96822 0 3 0x10008a pause ksh 96822 292373 8286 0 7 0x12 sshd 30785 122503 1 0 3 0x100083 ttyin getty 8286 176758 1 0 3 0x80 select sshd 78994 424446 41711 73 2 0x100090 syslogd 41711 351014 1 0 3 0x100082 netio syslogd 82009 75731 1 77 3 0x100090 poll dhclient 78613 307554 1 0 3 0x80 poll dhclient 14202 69877 0 0 3 0x14200 pgzero zerothread 76992 231748 0 0 3 0x14200 aiodoned aiodoned 44397 497103 0 0 3 0x14200 syncer update 14132 277969 0 0 3 0x14200 cleaner cleaner 60655 455377 0 0 3 0x14200 reaper reaper 43393 408102 0 0 3 0x14200 pgdaemon pagedaemon 21821 251113 0 0 3 0x14200 bored crynlk 46736 405267 0 0 3 0x14200 bored crypto 49510 269869 0 0 3 0x40014200 acpi0 acpi0 89516 469978 0 0 3 0x40014200 idle1 45768 411813 0 0 3 0x14200 bored softnet 85451 116372 0 0 3 0x14200 bored systqmp 40672 155684 0 0 3 0x14200 bored systq 35261 269846 0 0 3 0x40014200 bored softclock 52315 211888 0 0 3 0x40014200 idle0 58127 45024 0 0 3 0x14200 bored smr 1 163065 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 30704 (syz-executor1923) thread 0xffff800020b85078 (212281) shared rwlock netlock r = 0 (0xffffffff821d55b8) #0 witness_lock+0x52e #1 mrt6_ioctl+0x91 #2 sys_ioctl+0x5b8 #3 syscall+0x552 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82373c68) #0 witness_lock+0x52e #1 syscall+0x43a #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9442 6315K 6316K 78643K 10529 0 0 pcb 23 9K 9K 78643K 55 0 0 rtable 61 2K 2K 78643K 115 0 0 ifaddr 21 7K 7K 78643K 21 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 2K 78643K 13 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1174 74K 74K 78643K 1179 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 1K 1K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 1 0K 0K 78643K 1 0 0 proc 40 38K 46K 78643K 207 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 0K 78643K 11 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 152 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 52 2K 3K 78643K 704 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 3 0K 0K 78643K 3 0 0 temp 30 2711K 2775K 78643K 1720 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 2 0 0 1 0 1 1 0 8 0 inpcbpl 280 23 0 17 1 0 1 1 0 8 0 plimitpl 152 13 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 9 0 5 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 97 0 0 7 0 7 7 0 8 0 art_table 32 98 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1385 0 16 45 0 45 45 0 8 0 ffsino 272 1385 0 16 92 0 92 92 0 8 0 nchpl 144 1558 0 30 57 0 57 57 0 8 0 uvmvnodes 72 1394 0 0 26 0 26 26 0 8 0 vnodes 200 1394 0 0 74 0 74 74 0 8 0 namei 1024 3280 0 3280 3 2 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 2396 0 2396 10 9 1 6 0 8 1 sigapl 432 176 0 166 2 0 2 2 0 8 0 knotepl 112 5 0 0 1 0 1 1 0 8 0 kqueuepl 104 1 0 0 1 0 1 1 0 8 0 pipepl 112 118 0 111 3 2 1 1 0 8 0 fdescpl 488 177 0 166 2 0 2 2 0 8 0 filepl 152 817 0 774 2 0 2 2 0 8 0 lockfpl 104 6 0 6 1 1 0 1 0 8 0 lockfspl 48 3 0 3 1 1 0 1 0 8 0 sessionpl 112 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 166 0 166 3 2 1 1 0 8 1 processpl 840 192 0 166 4 0 4 4 0 8 0 procpl 600 192 0 166 3 0 3 3 0 8 0 sockpl 384 65 0 48 2 0 2 2 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 84 0 0 11 0 11 11 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 130 0 0 8 1 7 7 0 8 0 bufpl 256 2055 0 258 113 0 113 113 0 8 0 anonpl 16 17439 0 16327 7 2 5 6 0 125 0 amapchunkpl 152 493 0 458 2 0 2 2 0 158 0 amappl16 192 71 0 65 1 0 1 1 0 8 0 amappl14 176 14 0 13 3 2 1 1 0 8 0 amappl12 160 10 0 10 1 1 0 1 0 8 0 amappl11 152 39 0 25 1 0 1 1 0 8 0 amappl10 144 46 0 46 3 2 1 1 0 8 1 amappl9 136 385 0 383 1 0 1 1 0 8 0 amappl8 128 85 0 81 1 0 1 1 0 8 0 amappl7 120 14 0 13 1 0 1 1 0 8 0 amappl6 112 41 0 37 1 0 1 1 0 8 0 amappl5 104 114 0 102 1 0 1 1 0 8 0 amappl4 96 324 0 306 1 0 1 1 0 8 0 amappl3 88 155 0 145 1 0 1 1 0 8 0 amappl2 80 728 0 680 4 2 2 2 0 8 1 amappl1 72 11678 0 11302 14 5 9 14 0 8 0 amappl 80 370 0 351 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 177 0 166 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 177 0 166 1 0 1 1 0 8 0 vmmpekpl 168 5271 0 5252 1 0 1 1 0 8 0 vmmpepl 168 24940 0 24222 56 21 35 43 0 357 3 vmsppl 360 176 0 166 2 0 2 2 0 8 0 pdppl 4096 362 0 332 5 0 5 5 0 8 0 pvpl 32 71404 0 68656 38 11 27 27 0 265 4 pmappl 232 176 0 166 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 247 0 5 7 0 7 7 0 8 0