uvm_fault(0xfffffd803f014a50, 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(0xfffffd803f014a50, 0x8, 0, 1) -> e VOP_ACCESS(39bdceea719c4456,d,ffff8000ffff8bc0,ffff8000149e6990) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000149e68a0, count: 0 ddb> trace VOP_ACCESS(39bdceea719c4456,d,ffff8000ffff8bc0,ffff8000149e6990) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(45e6322aea5028ad,10,ffff8000ffff8bc0) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(7f0f29998feb39b5) at syscall+0x528 Xsyscall(6,0,8,0,2,589f8000010) at Xsyscall+0x128 end of kernel end trace frame: 0x58c6148f4c0, count: -4 ddb> show registers rdi 0xffffffff8109823a VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff8000149e6380 rbx 0x2f rdx 0x85 rcx 0xffff800000938000 rax 0xffff800000938000 r8 0x40 r9 0xfffffd803f7c7780 r10 0xba19cdd56b04ffc5 r11 0xa6a0f6df0b3e3482 r12 0x100 r13 0 r14 0xffff8000ffff8bc0 r15 0xfffffd803f7c7780 rip 0xffffffff8109824a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000149e6330 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor1) pid=407954 stat=onproc flags process=10 proc=4000000 pri=65, usrpri=65, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8968,0xffff80001496d9e8 process=0xffff8000149c8368 user=0xffff8000149e1000, vmspace=0xfffffd803f014a50 estcpu=15, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 47862 370679 39826 0 3 0x80 nanosleep syz-executor0 47862 49570 39826 0 3 0x4000080 kqread syz-executor0 47862 253075 39826 0 3 0x4000080 fsleep syz-executor0 67402 186055 38572 60929 2 0x10 syz-executor1 *67402 407954 38572 60929 7 0x4000010 syz-executor1 67402 9298 38572 60929 3 0x4000090 ttyout syz-executor1 67402 44157 38572 60929 3 0x4000090 fsleep syz-executor1 67402 520020 38572 60929 3 0x4000090 fsleep syz-executor1 67402 496144 38572 60929 3 0x4000090 fsleep syz-executor1 67402 461684 38572 60929 3 0x4000090 fsleep syz-executor1 2145 369952 1 0 3 0x100083 ttyin getty 90847 349326 0 0 3 0x14200 bored sosplice 39826 211663 24713 0 3 0x82 nanosleep syz-executor0 38572 321907 24713 0 3 0x82 nanosleep syz-executor1 24713 460239 5839 0 3 0x82 kqread syz-fuzzer 24713 153577 5839 0 3 0x4000082 thrsleep syz-fuzzer 24713 423135 5839 0 3 0x4000082 thrsleep syz-fuzzer 24713 283656 5839 0 3 0x4000082 thrsleep syz-fuzzer 24713 473546 5839 0 3 0x4000082 thrsleep syz-fuzzer 24713 47462 5839 0 3 0x4000082 thrsleep syz-fuzzer 24713 397561 5839 0 3 0x4000082 thrsleep syz-fuzzer 5839 137917 40023 0 3 0x10008a pause ksh 40023 54103 93834 0 3 0x92 select sshd 93834 303574 1 0 3 0x80 select sshd 24476 200784 70002 73 2 0x100090 syslogd 70002 162822 1 0 3 0x100082 netio syslogd 8469 332581 1 77 3 0x100090 poll dhclient 5975 64138 1 0 3 0x80 poll dhclient 61514 300643 0 0 2 0x14200 zerothread 75635 144575 0 0 3 0x14200 aiodoned aiodoned 89826 299045 0 0 3 0x14200 syncer update 13506 55805 0 0 3 0x14200 cleaner cleaner 40146 399251 0 0 3 0x14200 reaper reaper 27013 286281 0 0 3 0x14200 pgdaemon pagedaemon 24632 385244 0 0 3 0x14200 bored crynlk 60909 354424 0 0 3 0x14200 bored crypto 24403 471798 0 0 3 0x40014200 acpi0 acpi0 25806 407456 0 0 3 0x14200 bored softnet 8228 293638 0 0 3 0x14200 bored systqmp 91322 370652 0 0 3 0x14200 bored systq 1265 385932 0 0 3 0x40014200 bored softclock 23282 295596 0 0 3 0x40014200 idle0 1 424860 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper