uvm_fault(0xfffffd807f00d840, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{1}> ddb{1}> set $lines = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807f00d840, 0x8, 0, 1) -> e VOP_ACCESS(2f674147e14b8b97,d,ffff800020fe24c8,a0cad6afa78) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000210bd8f0, count: 0 ddb{1}> trace VOP_ACCESS(2f674147e14b8b97,d,ffff800020fe24c8,a0cad6afa78) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(a0b53cb3a3f21d46,10,ffff800020fe24c8) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(7c58b5f708903fba) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(7c58b5f708903fba) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,8,0,2,a09e98d7010) at Xsyscall+0x128 end of kernel end trace frame: 0xa0cad6afb00, count: -4 ddb{1}> show registers rdi 0xffffffff8185116a VOP_ACCESS+0x3a rsi 0x8e rbp 0xffff8000210bd3d0 rbx 0x2f rdx 0x8f rcx 0xffff800001744000 rax 0xffff800001744000 r8 0x40 r9 0xfffffd807f7c7a20 r10 0xd348454139a475ee r11 0xa21bf63240f9fae3 r12 0x100 r13 0 r14 0xffff800020fe24c8 r15 0xfffffd807f7c7a20 rip 0xffffffff8185117a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000210bd380 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{1}> show proc PROC (syz-executor0) pid=173241 stat=onproc flags process=10 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020fe2018,0xffff800020fe32e8 process=0xffff80002101a6a8 user=0xffff8000210b8000, vmspace=0xfffffd807f00d840 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 72472 291118 24439 60929 2 0x10 syz-executor0 *72472 173241 24439 60929 7 0x4000010 syz-executor0 8133 508001 33035 0 2 0 syz-executor1 8133 222583 33035 0 3 0x4000080 fsleep syz-executor1 8133 363802 33035 0 3 0x4000080 netio syz-executor1 33035 521366 27100 0 3 0x82 nanosleep syz-executor1 24439 488068 27100 0 3 0x82 nanosleep syz-executor0 66613 394073 0 0 3 0x14200 bored sosplice 66483 206040 1 0 3 0x100083 ttyin getty 27100 13720 30758 0 3 0x82 thrsleep syz-fuzzer 27100 278629 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 199379 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 140370 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 496308 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 252528 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 515507 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 134450 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 151672 30758 0 3 0x4000082 thrsleep syz-fuzzer 27100 258113 30758 0 3 0x4000082 kqread syz-fuzzer 30758 178398 69860 0 3 0x10008a pause ksh 69860 499934 70962 0 3 0x92 select sshd 70962 47981 1 0 3 0x80 select sshd 60655 144829 6024 73 7 0x100090 syslogd 6024 293994 1 0 3 0x100082 netio syslogd 11469 232224 1 77 3 0x100090 poll dhclient 73800 282866 1 0 3 0x80 poll dhclient 63385 267191 0 0 2 0x14200 zerothread 20524 429842 0 0 3 0x14200 aiodoned aiodoned 50761 148276 0 0 3 0x14200 syncer update 78041 156778 0 0 3 0x14200 cleaner cleaner 76759 273360 0 0 3 0x14200 reaper reaper 3414 157153 0 0 3 0x14200 pgdaemon pagedaemon 95885 209502 0 0 3 0x14200 bored crynlk 13234 284945 0 0 3 0x14200 bored crypto 87373 42334 0 0 3 0x40014200 acpi0 acpi0 68274 510164 0 0 3 0x40014200 idle1 11381 311109 0 0 3 0x14200 bored softnet 2645 240906 0 0 3 0x14200 bored systqmp 93536 405660 0 0 3 0x14200 bored systq 79489 8066 0 0 3 0x40014200 bored softclock 95250 513502 0 0 3 0x40014200 idle0 1 316435 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper