uvm_fault(0xfffffd803f015000, 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(0xfffffd803f015000, 0x8, 0, 1) -> e VOP_ACCESS(fccff3574f148753,d,ffff8000ffff9070,ffff800014a18a60) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff800014a18970, count: 0 ddb> trace VOP_ACCESS(fccff3574f148753,d,ffff8000ffff9070,ffff800014a18a60) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(93347973402d36ed,10,ffff8000ffff9070) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:924 syscall(5c8e9970f6fa9876) at syscall+0x528 Xsyscall(6,0,8,0,2,5ed0bd0e010) at Xsyscall+0x128 end of kernel end trace frame: 0x5ef358a5190, count: -4 ddb> show registers rdi 0xffffffff8100d7da VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff800014a18450 rbx 0x2f rdx 0x85 rcx 0xffff800000938000 rax 0xffff800000938000 r8 0x40 r9 0xfffffd803f7c79c0 r10 0x80a4314a5a35fce r11 0xdafc17dacd2cb483 r12 0x100 r13 0 r14 0xffff8000ffff9070 r15 0xfffffd803f7c79c0 rip 0xffffffff8100d7ea VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014a18400 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor1) pid=505442 stat=onproc flags process=10 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff8223d7d0 process=0xffff8000149b8020 user=0xffff800014a13000, vmspace=0xfffffd803f015000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 62034 369638 48515 60929 2 0x10 syz-executor1 *62034 505442 48515 60929 7 0x4000010 syz-executor1 88160 470815 1 0 3 0x100083 ttyin getty 74931 509832 0 0 3 0x14200 bored sosplice 381 308336 5825 0 2 0x2 syz-executor0 48515 54941 5825 0 3 0x82 nanosleep syz-executor1 5825 247685 13403 0 3 0x82 thrsleep syz-fuzzer 5825 475313 13403 0 3 0x4000082 nanosleep syz-fuzzer 5825 253935 13403 0 3 0x4000082 thrsleep syz-fuzzer 5825 185963 13403 0 3 0x4000082 kqread syz-fuzzer 5825 164570 13403 0 3 0x4000082 thrsleep syz-fuzzer 5825 457099 13403 0 3 0x4000082 thrsleep syz-fuzzer 5825 471072 13403 0 3 0x4000082 thrsleep syz-fuzzer 13403 142497 90051 0 3 0x10008a pause ksh 90051 290166 18954 0 3 0x92 select sshd 18954 151885 1 0 3 0x80 select sshd 82017 404876 57300 73 2 0x100090 syslogd 57300 442640 1 0 3 0x100082 netio syslogd 89089 86868 1 77 3 0x100090 poll dhclient 6993 115133 1 0 3 0x80 poll dhclient 72855 437167 0 0 2 0x14200 zerothread 39815 33686 0 0 3 0x14200 aiodoned aiodoned 63199 501467 0 0 3 0x14200 syncer update 68929 289908 0 0 3 0x14200 cleaner cleaner 4864 497667 0 0 3 0x14200 reaper reaper 92954 195592 0 0 3 0x14200 pgdaemon pagedaemon 92771 201563 0 0 3 0x14200 bored crynlk 28768 6849 0 0 3 0x14200 bored crypto 34197 317265 0 0 3 0x40014200 acpi0 acpi0 85716 54886 0 0 3 0x14200 bored softnet 38495 466358 0 0 3 0x14200 bored systqmp 64175 344163 0 0 3 0x14200 bored systq 93517 344070 0 0 3 0x40014200 bored softclock 45101 165491 0 0 3 0x40014200 idle0 1 454570 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper