uvm_fault(0xffffff007f12bc60, 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(0xffffff007f12bc60, 0xd0, 0, 1) -> e ip_ctloutput(ffffff006e478698,ffff8000ffffcbc0,ffffff006e6fed88,ffff800021156d58,ffffff0079726c00) at ip_ctloutput+0x784 end trace frame: 0xffff800021156d00, count: 0 ddb> trace ip_ctloutput(ffffff006e478698,ffff8000ffffcbc0,ffffff006e6fed88,ffff800021156d58,ffffff0079726c00) at ip_ctloutput+0x784 sys_getsockopt(ffff800021156de0,ffff8000ffffcbc0,ffff80002105f658) at sys_getsockopt+0x13c syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffff66,0,5,602a58ed010) at Xsyscall+0x128 end of kernel end trace frame: 0x604fab03fe0, count: -4 ddb> show registers rdi 0 rsi 0xffffffff81797ed4 ip_ctloutput+0x784 rbp 0xffff800021156ca0 rbx 0 rdx 0xffff800002ad0000 rcx 0x5c rax 0xffff800002ad0000 r8 0xffffff0079726c00 r9 0 r10 0x1de599c8f923f549 r11 0xffffffff813befd0 rip_ctloutput r12 0x1 r13 0 r14 0 r15 0xffffff0079726c00 rip 0xffffffff81797ed4 ip_ctloutput+0x784 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800021156c70 ss 0x10 ip_ctloutput+0x784: movq 0xd0(%r14),%rbx ddb> show proc PROC (syz-executor1) pid=94477 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffd070,0xffffffff81e8ea18 process=0xffff80002105f658 user=0xffff800021151000, vmspace=0xffffff007f12bc60 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 30608 497941 72484 0 2 0 syz-executor1 *30608 94477 72484 0 7 0x4000000 syz-executor1 64600 159036 1 0 3 0x100083 ttyin getty 83797 302271 0 0 3 0x14200 bored sosplice 72484 309213 83081 0 3 0x82 nanosleep syz-executor1 17023 472519 83081 0 2 0x2 syz-executor0 83081 238884 30402 0 3 0x82 thrsleep syz-fuzzer 83081 109458 30402 0 3 0x4000082 nanosleep syz-fuzzer 83081 325148 30402 0 3 0x4000082 thrsleep syz-fuzzer 83081 428472 30402 0 3 0x4000082 kqread syz-fuzzer 83081 362448 30402 0 3 0x4000082 thrsleep syz-fuzzer 83081 434783 30402 0 3 0x4000082 thrsleep syz-fuzzer 83081 363970 30402 0 3 0x4000082 thrsleep syz-fuzzer 30402 30624 42779 0 3 0x10008a pause ksh 42779 249265 12331 0 3 0x92 select sshd 12331 214573 1 0 3 0x80 select sshd 71622 216702 51679 73 2 0x100090 syslogd 51679 405108 1 0 3 0x100082 netio syslogd 84271 110993 1 77 3 0x100090 poll dhclient 63224 52784 1 0 3 0x80 poll dhclient 36168 180503 0 0 2 0x14200 zerothread 65075 59329 0 0 3 0x14200 aiodoned aiodoned 10182 377566 0 0 3 0x14200 syncer update 63826 115255 0 0 3 0x14200 cleaner cleaner 9652 193700 0 0 3 0x14200 reaper reaper 83191 188876 0 0 3 0x14200 pgdaemon pagedaemon 29331 46404 0 0 3 0x14200 bored crynlk 85725 169103 0 0 3 0x14200 bored crypto 5634 190525 0 0 3 0x40014200 acpi0 acpi0 64073 359383 0 0 3 0x14200 bored softnet 56621 139096 0 0 3 0x14200 bored systqmp 11355 141730 0 0 3 0x14200 bored systq 53286 495358 0 0 3 0x40014200 bored softclock 957 403342 0 0 3 0x40014200 idle0 1 50454 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper