uvm_fault(0xffffff007f12bd68, 0xd0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ip_ctloutput+0x784: movq 0xd0(%r14),%rbx ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xffffff007f12bd68, 0xd0, 0, 1) -> e ip_ctloutput(ffffff00680533d0,ffff8000ffffc008,ffffff006e703788,ffff80002118b198,ffffff00657a0000) at ip_ctloutput+0x784 end trace frame: 0xffff80002118b140, count: 0 ddb> trace ip_ctloutput(ffffff00680533d0,ffff8000ffffc008,ffffff006e703788,ffff80002118b198,ffffff00657a0000) at ip_ctloutput+0x784 sys_getsockopt(ffff80002118b220,ffff8000ffffc008,ffff80002105fca8) at sys_getsockopt+0x13c syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffff66,0,5,887d2042010) at Xsyscall+0x128 end of kernel end trace frame: 0x88a8e8a49f0, count: -4 ddb> show registers rdi 0 rsi 0xffffffff81410344 ip_ctloutput+0x784 rbp 0xffff80002118b0e0 rbx 0 rdx 0xffff800000acb000 rcx 0x5c rax 0xffff800000acb000 r8 0xffffff00657a0000 r9 0 r10 0x9c46d9ece2993988 r11 0xffffffff81041fb0 rip_ctloutput r12 0x1 r13 0 r14 0 r15 0xffffff00657a0000 rip 0xffffffff81410344 ip_ctloutput+0x784 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff80002118b0b0 ss 0x10 ip_ctloutput+0x784: movq 0xd0(%r14),%rbx ddb> show proc PROC (syz-executor1) pid=400966 stat=onproc flags process=0 proc=4000000 pri=69, usrpri=69, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffc260,0xffffffff81eafff0 process=0xffff80002105fca8 user=0xffff800021186000, vmspace=0xffffff007f12bd68 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 68669 206043 61095 0 2 0 syz-executor1 *68669 400966 61095 0 7 0x4000000 syz-executor1 68196 17020 33853 0 3 0x80 nanosleep syz-executor0 68196 256346 33853 0 3 0x4000080 lockf syz-executor0 68196 210385 33853 0 3 0x4000080 fsleep syz-executor0 69758 456143 1 0 3 0x100083 ttyin getty 75020 203576 0 0 3 0x14200 bored sosplice 33853 507158 19197 0 3 0x82 nanosleep syz-executor0 61095 425205 19197 0 3 0x82 nanosleep syz-executor1 19197 500530 22674 0 3 0x82 thrsleep syz-fuzzer 19197 5364 22674 0 3 0x4000082 nanosleep syz-fuzzer 19197 415567 22674 0 3 0x4000082 thrsleep syz-fuzzer 19197 319628 22674 0 3 0x4000082 kqread syz-fuzzer 19197 149074 22674 0 3 0x4000082 thrsleep syz-fuzzer 19197 132778 22674 0 3 0x4000082 thrsleep syz-fuzzer 19197 242907 22674 0 3 0x4000082 thrsleep syz-fuzzer 22674 509902 72348 0 3 0x10008a pause ksh 72348 425054 30577 0 3 0x92 select sshd 30577 192285 1 0 3 0x80 select sshd 40107 365199 6389 73 2 0x100090 syslogd 6389 472790 1 0 3 0x100082 netio syslogd 96578 289178 1 77 3 0x100090 poll dhclient 6534 17487 1 0 3 0x80 poll dhclient 8731 73845 0 0 2 0x14200 zerothread 9850 343673 0 0 3 0x14200 aiodoned aiodoned 58594 441402 0 0 3 0x14200 syncer update 64665 418336 0 0 3 0x14200 cleaner cleaner 25907 296970 0 0 3 0x14200 reaper reaper 55531 141933 0 0 3 0x14200 pgdaemon pagedaemon 81866 18127 0 0 3 0x14200 bored crynlk 44912 76916 0 0 3 0x14200 bored crypto 51906 173297 0 0 3 0x40014200 acpi0 acpi0 52407 444625 0 0 3 0x14200 bored softnet 21601 67979 0 0 3 0x14200 bored systqmp 94369 213624 0 0 3 0x14200 bored systq 27477 209937 0 0 3 0x40014200 bored softclock 1125 144943 0 0 3 0x40014200 idle0 1 307550 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper