kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Sun Dec 2 09:21:49 PST 2018 OpenBSD/amd64 (worker.syzkaller) (tty00) Warning: Permanently added '10.128.10.27' (ECDSA) to the list of known hosts. executing program login: uvm_fault(0xffffff007f12b948, 0xd0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ip_pcbopts+0x19: movq 0(%r14),%rdi ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffff007f12b948, 0xd0, 0, 1) -> e ip_pcbopts(ffffff006e6fb488,0) at ip_pcbopts+0x19 end trace frame: 0xffff8000210fade0, count: 0 ddb> trace ip_pcbopts(ffffff006e6fb488,0) at ip_pcbopts+0x19 sosetopt(ffffff006e4851e8,ffff8000210c2010,0,ffffff006e6fb488) at sosetopt+0xbf sys_setsockopt(ffff8000210faf00,ffff8000210c2010,ffff8000210a5fd8) at sys_setsockopt+0x1aa syscall(0) at syscall+0x3e4 Xsyscall(6,0,0,0,1,7f7ffffd86c8) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd8680, count: -5 ddb> show registers rdi 0xd0 rsi 0 rbp 0xffff8000210fad90 rbx 0xffffffff81041fb0 rip_ctloutput rdx 0 rcx 0x1 rax 0 r8 0 r9 0 r10 0 r11 0xffffffff81041fb0 rip_ctloutput r12 0x1 r13 0 r14 0xd0 r15 0 rip 0xffffffff81410a79 ip_pcbopts+0x19 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000210fad60 ss 0x10 ip_pcbopts+0x19: movq 0(%r14),%rdi ddb> show proc PROC (syz-executor0982) pid=246218 stat=onproc flags process=2 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000210c2268,0xffffffff81eafff0 process=0xffff8000210a5fd8 user=0xffff8000210f5000, vmspace=0xffffff007f12b948 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *93869 246218 74417 0 7 0x2 syz-executor0982 74417 221300 53905 0 3 0x10008a pause ksh 53905 62215 57600 0 3 0x92 select sshd 39356 508814 1 0 3 0x100083 ttyin getty 57600 169773 1 0 3 0x80 select sshd 676 299003 55282 73 2 0x100090 syslogd 55282 197277 1 0 3 0x100082 netio syslogd 76968 157695 1 77 3 0x100090 poll dhclient 36313 372561 1 0 3 0x80 poll dhclient 87206 31724 0 0 2 0x14200 zerothread 42189 155538 0 0 3 0x14200 aiodoned aiodoned 54161 202547 0 0 3 0x14200 syncer update 86651 322640 0 0 3 0x14200 cleaner cleaner 76129 74362 0 0 3 0x14200 reaper reaper 55072 169182 0 0 3 0x14200 pgdaemon pagedaemon 57347 22759 0 0 3 0x14200 bored crynlk 6643 440773 0 0 3 0x14200 bored crypto 78910 118818 0 0 3 0x40014200 acpi0 acpi0 6554 67769 0 0 3 0x14200 bored softnet 9 362753 0 0 3 0x14200 bored systqmp 16896 126092 0 0 3 0x14200 bored systq 20463 97100 0 0 3 0x40014200 bored softclock 1010 377392 0 0 3 0x40014200 idle0 1 38535 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb>