kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Sat Jun 13 01:38:06 PDT 2020 OpenBSD/amd64 (ci-openbsd-main-0.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.1.21' (ECDSA) to the list of known hosts. 2020/06/13 01:38:48 parsed 1 programs 2020/06/13 01:38:52 executed programs: 0 login: uvm_fault(0xffffffff827c6788, 0xffffffff00000000, 0, 4) -> e kernel: page fault trap, code=0 Stopped at 0xffffffff00000000:uvm_fault(0xffffffff827c6788, 0xffffffff00000000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at db_read_bytes+0xe3: movzbl 0(%r15,%rbx,1),%eax ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff827c6788, 0xffffffff00000000, 0, 1) -> e db_read_bytes(ffffffff00000000,1,ffff80001d779ce4) at db_read_bytes+0xe3 end trace frame: 0xffff80001d779d40, count: 0 ddb> trace db_read_bytes(ffffffff00000000,1,ffff80001d779ce4) at db_read_bytes+0xe3 db_get_value(ffffffff00000000,1,0) at db_get_value+0x60 db_disasm(ffffffff00000000,0) at db_disasm+0x8f db_trap(6,0) at db_trap+0x12e db_ktrap(6,0,ffff80001d779f70) at db_ktrap+0x1b6 kerntrap(ffff80001d779f70) at kerntrap+0x129 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0x0, count: -7 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80001d779cc0 rbx 0 rdx 0x4 rcx 0x7 rax 0x1 r8 0xffffffff81af4a8f db_read_bytes+0x3f r9 0x7 r10 0xd5dfee9bbff53431 r11 0xee075ab59bb7b684 r12 0 r13 0 r14 0xffff80001d779ce4 r15 0xffffffff00000000 rip 0xffffffff81af4b33 db_read_bytes+0xe3 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d779c60 ss 0x10 db_read_bytes+0xe3: movzbl 0(%r15,%rbx,1),%eax ddb> show proc PROC (syz-executor.0) pid=398801 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6aa388,0xffffffff827c95b8 process=0xffff8000ffffb938 user=0xffff80001d775000, vmspace=0xfffffd806bc0a220 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND * 281 398801 27540 0 7 0 syz-executor.0 27540 449385 2571 0 3 0x82 nanosleep syz-executor.0 2571 224380 45374 0 3 0x82 kqread syz-execprog 2571 515283 45374 0 3 0x4000082 nanosleep syz-execprog 2571 397138 45374 0 3 0x4000082 thrsleep syz-execprog 2571 70963 45374 0 3 0x4000082 thrsleep syz-execprog 2571 519160 45374 0 3 0x4000082 thrsleep syz-execprog 2571 239287 45374 0 3 0x4000082 thrsleep syz-execprog 2571 502047 45374 0 3 0x4000082 thrsleep syz-execprog 2571 249780 45374 0 3 0x4000082 thrsleep syz-execprog 45374 237603 14166 0 3 0x10008a pause ksh 14166 373510 41631 0 3 0x92 select sshd 44020 222771 1 0 3 0x100083 ttyin getty 41631 350847 1 0 3 0x80 select sshd 85857 341790 4502 73 3 0x100090 kqread syslogd 4502 98544 1 0 3 0x100082 netio syslogd 65636 484699 1 77 3 0x100090 poll dhclient 19476 133793 1 0 3 0x80 poll dhclient 40170 426379 0 0 3 0x14200 bored smr 66559 150803 0 0 2 0x14200 zerothread 938 308470 0 0 3 0x14200 aiodoned aiodoned 5657 244279 0 0 3 0x14200 syncer update 12443 51390 0 0 3 0x14200 cleaner cleaner 14178 378891 0 0 3 0x14200 reaper reaper 1106 202517 0 0 3 0x14200 pgdaemon pagedaemon 21140 512845 0 0 3 0x14200 bored crynlk 8672 170441 0 0 3 0x14200 bored crypto 12814 411847 0 0 3 0x40014200 acpi0 acpi0 25881 140502 0 0 3 0x14200 bored softnet 54826 355563 0 0 3 0x14200 bored systqmp 88905 507514 0 0 3 0x14200 bored systq 49130 49234 0 0 2 0x40014200 softclock 175 501163 0 0 3 0x40014200 idle0 1 350429 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 32 8K 9K 78643K 82 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 67 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 12K 78643K 886 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 4 0K 0K 78643K 6 0 temp 23 3837K 3901K 78643K 1718 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 280 76 0 69 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 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 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 1464 0 70 88 0 88 88 0 8 0 ffsino 240 1464 0 70 83 0 83 83 0 8 0 nchpl 144 1731 0 135 60 0 60 60 0 8 0 uvmvnodes 72 1473 0 0 27 0 27 27 0 8 0 vnodes 208 1473 0 0 78 0 78 78 0 8 0 namei 1024 4115 0 4115 2 1 1 1 0 8 1 scxspl 192 4708 0 4708 2 1 1 1 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 424 261 0 234 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 pipelkpl 16 70 0 63 2 1 1 1 0 8 0 pipepl 120 140 0 127 2 1 1 1 0 8 0 fdescpl 432 247 0 234 2 0 2 2 0 8 0 filepl 120 1076 0 1022 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 144 234 0 234 2 1 1 1 0 8 1 processpl 920 261 0 234 4 0 4 4 0 8 0 procpl 624 268 0 234 3 0 3 3 0 8 0 sockpl 400 120 0 103 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5522 0 5494 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9672 0 9593 7 1 6 6 0 8 1 bufpl 280 3008 0 125 206 0 206 206 0 8 0 anonpl 16 21591 0 20044 14 2 12 12 0 107 4 amapchunkpl 152 806 0 745 4 0 4 4 0 158 1 amappl16 192 297 0 261 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 27 0 23 1 0 1 1 0 8 0 amappl13 168 122 0 116 2 1 1 1 0 8 0 amappl12 160 5 0 5 2 1 1 1 0 8 1 amappl11 152 43 0 33 1 0 1 1 0 8 0 amappl10 144 10 0 7 1 0 1 1 0 8 0 amappl9 136 214 0 213 1 0 1 1 0 8 0 amappl8 128 235 0 228 1 0 1 1 0 8 0 amappl7 120 102 0 91 1 0 1 1 0 8 0 amappl6 112 25 0 21 1 0 1 1 0 8 0 amappl5 104 146 0 136 1 0 1 1 0 8 0 amappl4 96 486 0 456 1 0 1 1 0 8 0 amappl3 88 158 0 151 1 0 1 1 0 8 0 amappl2 80 883 0 830 2 0 2 2 0 8 0 amappl1 72 13995 0 13594 24 7 17 17 0 8 8 amappl 80 467 0 441 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 24 247 0 234 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 247 0 234 1 0 1 1 0 8 0 vmmpekpl 168 6233 0 6213 2 0 2 2 0 8 1 vmmpepl 168 31066 0 30178 85 16 69 69 0 357 30 vmsppl 272 246 0 234 1 0 1 1 0 8 0 pdppl 4096 500 0 468 5 0 5 5 0 8 0 pvpl 32 110025 0 106193 108 6 102 102 0 265 70 pmappl 200 246 0 234 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 216 0 7 6 0 6 6 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_read_bytes(ffffffff00000000,1,ffff80001d779ce4) at db_read_bytes+0xe3 db_get_value(ffffffff00000000,1,0) at db_get_value+0x60 db_disasm(ffffffff00000000,0) at db_disasm+0x8f db_trap(6,0) at db_trap+0x12e db_ktrap(6,0,ffff80001d779f70) at db_ktrap+0x1b6 kerntrap(ffff80001d779f70) at kerntrap+0x129 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0x0, count: -7 ddb> machine ddbcpu 1 No such command ddb> trace db_read_bytes(ffffffff00000000,1,ffff80001d779ce4) at db_read_bytes+0xe3 db_get_value(ffffffff00000000,1,0) at db_get_value+0x60 db_disasm(ffffffff00000000,0) at db_disasm+0x8f db_trap(6,0) at db_trap+0x12e db_ktrap(6,0,ffff80001d779f70) at db_ktrap+0x1b6 kerntrap(ffff80001d779f70) at kerntrap+0x129 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0x0, count: -7 ddb>