uvm_fault(0xfffffd803f015d68, 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(0xfffffd803f015d68, 0x8, 0, 1) -> e VOP_ACCESS(455d2db6bb89f88f,d,ffff8000ffff8008,ffff800014a43530) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff800014a43440, count: 0 ddb> trace VOP_ACCESS(455d2db6bb89f88f,d,ffff8000ffff8008,ffff800014a43530) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(2ce1c5a9d7db219d,10,ffff8000ffff8008) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:924 syscall(afe09d4bed1bc037) at syscall+0x528 Xsyscall(6,0,8,0,2,21d42def010) at Xsyscall+0x128 end of kernel end trace frame: 0x21ff13afcd0, count: -4 ddb> show registers rdi 0xffffffff8100d7da VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff800014a42f20 rbx 0x2f rdx 0x85 rcx 0xffff80000196c000 rax 0xffff80000196c000 r8 0x40 r9 0xfffffd803f7c74e0 r10 0x9071621f9957af35 r11 0xafc05942aa4ac23f r12 0x100 r13 0 r14 0xffff8000ffff8008 r15 0xfffffd803f7c74e0 rip 0xffffffff8100d7ea VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014a42ed0 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor0) pid=370816 stat=onproc flags process=10 proc=4000000 pri=76, usrpri=76, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8bc0,0xffff80001496d538 process=0xffff8000149b86b0 user=0xffff800014a3e000, vmspace=0xfffffd803f015d68 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98623 428209 37763 60929 2 0x10 syz-executor0 *98623 370816 37763 60929 7 0x4000010 syz-executor0 97360 260589 51278 0 2 0 syz-executor1 97360 343850 51278 0 3 0x4000080 lockf syz-executor1 97360 411979 51278 0 3 0x4000080 fsleep syz-executor1 52463 291899 1 0 3 0x100083 ttyin getty 51278 321319 83205 0 3 0x82 nanosleep syz-executor1 37763 382956 83205 0 3 0x82 nanosleep syz-executor0 70375 438294 0 0 3 0x14200 bored sosplice 83205 463197 23377 0 3 0x82 thrsleep syz-fuzzer 83205 439889 23377 0 3 0x4000082 thrsleep syz-fuzzer 83205 462792 23377 0 3 0x4000082 thrsleep syz-fuzzer 83205 505222 23377 0 3 0x4000082 thrsleep syz-fuzzer 83205 449192 23377 0 3 0x4000082 kqread syz-fuzzer 83205 113507 23377 0 3 0x4000082 thrsleep syz-fuzzer 83205 453571 23377 0 3 0x4000082 thrsleep syz-fuzzer 23377 299287 64530 0 3 0x10008a pause ksh 64530 382032 10940 0 3 0x92 select sshd 10940 223436 1 0 3 0x80 select sshd 46805 61786 3034 73 2 0x100090 syslogd 3034 11757 1 0 3 0x100082 netio syslogd 82354 144473 1 77 3 0x100090 poll dhclient 42917 148234 1 0 3 0x80 poll dhclient 51229 507644 0 0 2 0x14200 zerothread 54966 389373 0 0 3 0x14200 aiodoned aiodoned 86752 388161 0 0 3 0x14200 syncer update 58737 510994 0 0 3 0x14200 cleaner cleaner 60898 54392 0 0 3 0x14200 reaper reaper 93326 369371 0 0 3 0x14200 pgdaemon pagedaemon 45639 437067 0 0 3 0x14200 bored crynlk 11686 485591 0 0 3 0x14200 bored crypto 12920 343509 0 0 3 0x40014200 acpi0 acpi0 30436 250570 0 0 3 0x14200 bored softnet 19667 504904 0 0 3 0x14200 bored systqmp 95176 211959 0 0 3 0x14200 bored systq 2379 301404 0 0 3 0x40014200 bored softclock 82187 397958 0 0 3 0x40014200 idle0 1 108845 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper