uvm_fault(0xfffffd807f00d420, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{0}> ddb{0}> set $lines = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00d420, 0x8, 0, 1) -> e VOP_ACCESS(e4aa437e1797f0cb,d,ffff800020fe2018,aac3f43ac28) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000210f9a50, count: 0 ddb{0}> trace VOP_ACCESS(e4aa437e1797f0cb,d,ffff800020fe2018,aac3f43ac28) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(752cccb877dcae61,10,ffff800020fe2018) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(a1be0592bcde3137) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(a1be0592bcde3137) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,8,0,2,aaa0efe8010) at Xsyscall+0x128 end of kernel end trace frame: 0xaac3f43acb0, count: -4 ddb{0}> show registers rdi 0xffffffff813744ca VOP_ACCESS+0x3a rsi 0x8e rbp 0xffff8000210f9530 rbx 0x2f rdx 0x8f rcx 0xffff80000199e000 rax 0xffff80000199e000 r8 0x40 r9 0xfffffd807f7c7960 r10 0x62134c5b567682fb r11 0x5356fa54507eda33 r12 0x100 r13 0 r14 0xffff800020fe2018 r15 0xfffffd807f7c7960 rip 0xffffffff813744da VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000210f94e0 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{0}> show proc PROC (syz-executor0) pid=426608 stat=onproc flags process=10 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800020fe3530,0xffffffff822529f8 process=0xffff800020fe4d30 user=0xffff8000210f4000, vmspace=0xfffffd807f00d420 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 33163 414904 51126 60929 2 0x10 syz-executor0 *33163 426608 51126 60929 7 0x4000010 syz-executor0 77636 300502 33477 0 7 0x480 syz-executor1 77636 111342 33477 0 3 0x4000080 pipewr syz-executor1 51126 85728 82639 0 3 0x82 nanosleep syz-executor0 33477 181527 82639 0 3 0x82 nanosleep syz-executor1 86747 305389 0 0 3 0x14200 bored sosplice 82639 216427 77686 0 3 0x82 thrsleep syz-fuzzer 82639 520893 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 124855 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 225389 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 411127 77686 0 3 0x4000082 kqread syz-fuzzer 82639 275849 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 520807 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 406791 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 95505 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 91433 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 53348 77686 0 3 0x4000082 thrsleep syz-fuzzer 82639 477374 77686 0 3 0x4000082 thrsleep syz-fuzzer 77686 48853 63946 0 3 0x10008a pause ksh 63946 275139 50926 0 3 0x92 select sshd 18706 178091 1 0 3 0x100083 ttyin getty 50926 309731 1 0 3 0x80 select sshd 42896 395459 12586 73 2 0x100090 syslogd 12586 111112 1 0 3 0x100082 netio syslogd 86032 518451 1 77 3 0x100090 poll dhclient 24733 138936 1 0 3 0x80 poll dhclient 13246 404639 0 0 3 0x14200 pgzero zerothread 99740 344131 0 0 3 0x14200 aiodoned aiodoned 34829 54924 0 0 3 0x14200 syncer update 24657 1618 0 0 3 0x14200 cleaner cleaner 57941 302163 0 0 3 0x14200 reaper reaper 12005 473698 0 0 3 0x14200 pgdaemon pagedaemon 86954 326047 0 0 3 0x14200 bored crynlk 28478 412622 0 0 3 0x14200 bored crypto 73692 287045 0 0 3 0x40014200 acpi0 acpi0 68809 288076 0 0 3 0x40014200 idle1 93215 283656 0 0 3 0x14200 bored softnet 96990 9638 0 0 3 0x14200 bored systqmp 36758 24274 0 0 3 0x14200 bored systq 81709 239727 0 0 3 0x40014200 bored softclock 98374 43251 0 0 3 0x40014200 idle0 1 76683 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper