uvm_fault(0xfffffd803f015420, 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(0xfffffd803f015420, 0x8, 0, 1) -> e VOP_ACCESS(123fbb5441ae8cbd,d,ffff800014a0fa20,ffff800014a25510) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff800014a25420, count: 0 ddb> trace VOP_ACCESS(123fbb5441ae8cbd,d,ffff800014a0fa20,ffff800014a25510) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(bf2db24de5d0ce80,10,ffff800014a0fa20) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(7c070f4f68627647) at syscall+0x528 Xsyscall(6,0,8,0,2,15d852c010) at Xsyscall+0x128 end of kernel end trace frame: 0x1869038380, count: -4 ddb> show registers rdi 0xffffffff81add1fa VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff800014a24f00 rbx 0x2f rdx 0x85 rcx 0xffff8000019b5000 rax 0xffff8000019b5000 r8 0x40 r9 0xfffffd803f7c7960 r10 0x84a6e42ba398cff5 r11 0xf02d8a732606d3c3 r12 0x100 r13 0 r14 0xffff800014a0fa20 r15 0xfffffd803f7c7960 rip 0xffffffff81add20a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014a24eb0 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor1) pid=284296 stat=onproc flags process=10 proc=4000000 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff800014a0f7c8,0xffffffff82206ba8 process=0xffff8000ffff6010 user=0xffff800014a20000, vmspace=0xfffffd803f015420 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 47121 291687 66570 60929 2 0x10 syz-executor1 *47121 284296 66570 60929 7 0x4000010 syz-executor1 6500 262037 1 0 3 0x100083 ttyin getty 3886 332173 79942 0 2 0x2 syz-executor0 66570 465711 79942 0 3 0x82 nanosleep syz-executor1 49459 8779 0 0 3 0x14200 bored sosplice 79942 405751 55304 0 3 0x82 thrsleep syz-fuzzer 79942 214891 55304 0 3 0x4000082 nanosleep syz-fuzzer 79942 485337 55304 0 3 0x4000082 thrsleep syz-fuzzer 79942 245598 55304 0 3 0x4000082 kqread syz-fuzzer 79942 144198 55304 0 3 0x4000082 thrsleep syz-fuzzer 79942 258207 55304 0 3 0x4000082 thrsleep syz-fuzzer 79942 213791 55304 0 3 0x4000082 thrsleep syz-fuzzer 55304 111279 11981 0 3 0x10008a pause ksh 11981 75752 49697 0 3 0x92 select sshd 49697 359964 1 0 3 0x80 select sshd 89580 444962 30420 73 2 0x100090 syslogd 30420 215821 1 0 3 0x100082 netio syslogd 15858 197302 1 77 3 0x100090 poll dhclient 11420 421694 1 0 3 0x80 poll dhclient 68741 60429 0 0 2 0x14200 zerothread 17119 370763 0 0 3 0x14200 aiodoned aiodoned 35093 429722 0 0 3 0x14200 syncer update 10260 411663 0 0 3 0x14200 cleaner cleaner 69424 26539 0 0 3 0x14200 reaper reaper 98597 168028 0 0 3 0x14200 pgdaemon pagedaemon 71480 404107 0 0 3 0x14200 bored crynlk 80644 402697 0 0 3 0x14200 bored crypto 25904 393421 0 0 3 0x40014200 acpi0 acpi0 18933 416921 0 0 3 0x14200 bored softnet 9436 93656 0 0 3 0x14200 bored systqmp 85535 367085 0 0 3 0x14200 bored systq 21563 310547 0 0 3 0x40014200 bored softclock 62852 152319 0 0 3 0x40014200 idle0 1 77659 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper