uvm_fault(0xfffffd803f015b58, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> ddb> set $lines = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f015b58, 0x8, 0, 1) -> e VOP_ACCESS(edbff43d8db83ea2,d,ffff800014a19530,ffff800014a05210) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff800014a05120, count: 0 ddb> trace VOP_ACCESS(edbff43d8db83ea2,d,ffff800014a19530,ffff800014a05210) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(3c62eef19bf6f098,10,ffff800014a19530) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(5e251ff2a65bebe8) at syscall+0x528 Xsyscall(6,0,8,0,2,b7def52f010) at Xsyscall+0x128 end of kernel end trace frame: 0xb80c765fcf0, count: -4 ddb> show registers rdi 0xffffffff81add1fa VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff800014a04c00 rbx 0x2f rdx 0x85 rcx 0xffff800001739000 rax 0xffff800001739000 r8 0x40 r9 0xfffffd803f7c7a80 r10 0xb94546c6b8521ce9 r11 0x7c1beb3e3c9f1b54 r12 0x100 r13 0 r14 0xffff800014a19530 r15 0xfffffd803f7c7a80 rip 0xffffffff81add20a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014a04bb0 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor0) pid=383963 stat=onproc flags process=10 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800014a18018,0xffffffff82206ba8 process=0xffff8000149d6020 user=0xffff800014a00000, vmspace=0xfffffd803f015b58 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 69739 420272 71721 60929 2 0x10 syz-executor0 *69739 383963 71721 60929 7 0x4000010 syz-executor0 51008 37496 1 0 3 0x100083 ttyin getty 71721 485570 60998 0 2 0x482 syz-executor0 69071 471598 60998 0 2 0x2 syz-executor1 19499 399096 0 0 3 0x14200 bored sosplice 60998 184140 24760 0 3 0x82 kqread syz-fuzzer 60998 264029 24760 0 3 0x4000082 nanosleep syz-fuzzer 60998 385983 24760 0 3 0x4000082 thrsleep syz-fuzzer 60998 97993 24760 0 3 0x4000082 thrsleep syz-fuzzer 60998 71353 24760 0 3 0x4000082 thrsleep syz-fuzzer 60998 251085 24760 0 3 0x4000082 thrsleep syz-fuzzer 60998 462442 24760 0 3 0x4000082 thrsleep syz-fuzzer 24760 109349 6993 0 3 0x10008a pause ksh 6993 11236 58781 0 3 0x92 select sshd 58781 186235 1 0 3 0x80 select sshd 2098 233246 73265 73 2 0x100090 syslogd 73265 469643 1 0 3 0x100082 netio syslogd 82676 128531 1 77 3 0x100090 poll dhclient 30795 378324 1 0 3 0x80 poll dhclient 29888 149705 0 0 2 0x14200 zerothread 55850 40651 0 0 3 0x14200 aiodoned aiodoned 80369 417923 0 0 3 0x14200 syncer update 71914 1153 0 0 3 0x14200 cleaner cleaner 29882 456219 0 0 3 0x14200 reaper reaper 32918 411623 0 0 3 0x14200 pgdaemon pagedaemon 33991 13725 0 0 3 0x14200 bored crynlk 16808 71720 0 0 3 0x14200 bored crypto 755 69374 0 0 3 0x40014200 acpi0 acpi0 82330 186059 0 0 3 0x14200 bored softnet 55045 41033 0 0 3 0x14200 bored systqmp 4683 89685 0 0 3 0x14200 bored systq 60514 113402 0 0 3 0x40014200 bored softclock 38493 74245 0 0 3 0x40014200 idle0 1 29866 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper