uvm_fault(0xffffff007f12b840, 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(0xffffff007f12b840, 0xd0, 0, 1) -> e ip_ctloutput(ffffff00694d2a60,ffff8000211539f0,ffffff006f2e3a80,ffff800021180498,ffffff005f2cce00) at ip_ctloutput+0x784 end trace frame: 0xffff800021180440, count: 0 ddb> trace ip_ctloutput(ffffff00694d2a60,ffff8000211539f0,ffffff006f2e3a80,ffff800021180498,ffffff005f2cce00) at ip_ctloutput+0x784 sys_getsockopt(ffff800021180520,ffff8000211539f0,ffff80002105f008) at sys_getsockopt+0x13c syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffff66,0,5,d9088608010) at Xsyscall+0x128 end of kernel end trace frame: 0xd935f725710, count: -4 ddb> show registers rdi 0 rsi 0xffffffff81a13b44 ip_ctloutput+0x784 rbp 0xffff8000211803e0 rbx 0 rdx 0xffff800002ad0000 rcx 0x5c rax 0xffff800002ad0000 r8 0xffffff005f2cce00 r9 0 r10 0x3ef90de304faabf9 r11 0xffffffff8110e110 rip_ctloutput r12 0x1 r13 0 r14 0 r15 0xffffff005f2cce00 rip 0xffffffff81a13b44 ip_ctloutput+0x784 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff8000211803b0 ss 0x10 ip_ctloutput+0x784: movq 0xd0(%r14),%rbx ddb> show proc PROC (syz-executor1) pid=340720 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800021153540,0xffffffff81e98cf0 process=0xffff80002105f008 user=0xffff80002117b000, vmspace=0xffffff007f12b840 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 52374 184273 92122 0 2 0 syz-executor1 *52374 340720 92122 0 7 0x4000000 syz-executor1 26709 266357 1 0 3 0x100083 ttyin getty 58148 282668 0 0 3 0x14200 bored sosplice 92122 254509 83052 0 3 0x82 nanosleep syz-executor1 35789 420611 83052 0 2 0x2 syz-executor0 83052 458861 42895 0 3 0x82 thrsleep syz-fuzzer 83052 267095 42895 0 3 0x4000082 nanosleep syz-fuzzer 83052 234453 42895 0 3 0x4000082 thrsleep syz-fuzzer 83052 255566 42895 0 3 0x4000082 thrsleep syz-fuzzer 83052 249381 42895 0 3 0x4000082 kqread syz-fuzzer 83052 389506 42895 0 3 0x4000082 thrsleep syz-fuzzer 83052 23239 42895 0 3 0x4000082 thrsleep syz-fuzzer 42895 243921 46660 0 3 0x10008a pause ksh 46660 397101 16509 0 3 0x92 select sshd 16509 361523 1 0 3 0x80 select sshd 68445 169559 53799 73 2 0x100090 syslogd 53799 191075 1 0 3 0x100082 netio syslogd 99444 311189 1 77 3 0x100090 poll dhclient 98617 419406 1 0 3 0x80 poll dhclient 60157 66287 0 0 2 0x14200 zerothread 18131 331864 0 0 3 0x14200 aiodoned aiodoned 93733 372362 0 0 3 0x14200 syncer update 59781 200343 0 0 3 0x14200 cleaner cleaner 37316 286469 0 0 3 0x14200 reaper reaper 67730 102332 0 0 3 0x14200 pgdaemon pagedaemon 1139 56643 0 0 3 0x14200 bored crynlk 36257 267177 0 0 3 0x14200 bored crypto 55095 4251 0 0 3 0x40014200 acpi0 acpi0 94425 426543 0 0 2 0x14200 softnet 84338 356719 0 0 3 0x14200 bored systqmp 11909 413669 0 0 3 0x14200 bored systq 5080 158936 0 0 3 0x40014200 bored softclock 81953 3566 0 0 3 0x40014200 idle0 1 189514 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper