uvm_fault(0xfffffd803f015948, 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(0xfffffd803f015948, 0x8, 0, 1) -> e VOP_ACCESS(c73cccf59518038,d,ffff80001496d9d8,ffff8000149e8c90) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000149e8ba0, count: 0 ddb> trace VOP_ACCESS(c73cccf59518038,d,ffff80001496d9d8,ffff8000149e8c90) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(989d8e5f14327815,10,ffff80001496d9d8) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(9a92115ba909a6e8) at syscall+0x528 Xsyscall(6,0,8,0,2,dc7e1280010) at Xsyscall+0x128 end of kernel end trace frame: 0xdca91d93a70, count: -4 ddb> show registers rdi 0xffffffff81add1fa VOP_ACCESS+0x3a rsi 0x84 rbp 0xffff8000149e8680 rbx 0x2f rdx 0x85 rcx 0xffff800002b3a000 rax 0xffff800002b3a000 r8 0x40 r9 0xfffffd803f7c77e0 r10 0x28424bc04127d413 r11 0xc9328f17ba013f14 r12 0x100 r13 0 r14 0xffff80001496d9d8 r15 0xfffffd803f7c77e0 rip 0xffffffff81add20a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000149e8630 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb> show proc PROC (syz-executor0) pid=1198 stat=onproc flags process=10 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001496d2d0,0xffffffff82206ba8 process=0xffff8000149b2d40 user=0xffff8000149e3000, vmspace=0xfffffd803f015948 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 66577 452267 89951 60929 2 0x10 syz-executor0 *66577 1198 89951 60929 7 0x4000010 syz-executor0 40891 148704 1 0 3 0x100083 ttyin getty 92288 226466 0 0 3 0x14200 bored sosplice 89951 292851 61633 0 3 0x82 nanosleep syz-executor0 35549 201868 61633 0 2 0x2 syz-executor1 61633 509640 22883 0 3 0x82 thrsleep syz-fuzzer 61633 441572 22883 0 2 0x4000482 syz-fuzzer 61633 288654 22883 0 3 0x4000082 thrsleep syz-fuzzer 61633 229101 22883 0 3 0x4000082 kqread syz-fuzzer 61633 440599 22883 0 3 0x4000082 thrsleep syz-fuzzer 61633 347412 22883 0 3 0x4000082 thrsleep syz-fuzzer 61633 274955 22883 0 3 0x4000082 thrsleep syz-fuzzer 22883 324028 78061 0 3 0x10008a pause ksh 78061 312354 8086 0 3 0x92 select sshd 8086 197298 1 0 3 0x80 select sshd 33746 27605 70105 73 2 0x100090 syslogd 70105 261852 1 0 3 0x100082 netio syslogd 83274 255824 1 77 3 0x100090 poll dhclient 77695 10853 1 0 3 0x80 poll dhclient 75356 155464 0 0 2 0x14200 zerothread 17 288784 0 0 3 0x14200 aiodoned aiodoned 10413 132142 0 0 3 0x14200 syncer update 71175 331814 0 0 3 0x14200 cleaner cleaner 22973 366371 0 0 3 0x14200 reaper reaper 96760 226062 0 0 3 0x14200 pgdaemon pagedaemon 45490 178910 0 0 3 0x14200 bored crynlk 39849 85580 0 0 3 0x14200 bored crypto 40463 415242 0 0 3 0x40014200 acpi0 acpi0 37925 388532 0 0 3 0x14200 bored softnet 46272 219830 0 0 3 0x14200 bored systqmp 40375 320598 0 0 3 0x14200 bored systq 12143 15698 0 0 3 0x40014200 bored softclock 82554 62039 0 0 3 0x40014200 idle0 1 7159 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper