uvm_fault(0xfffffd807f00d840, 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(0xfffffd807f00d840, 0x8, 0, 1) -> e VOP_ACCESS(1d539a95c8171931,d,ffff800020fe2be0,7810284dee8) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000210c3d60, count: 0 ddb{0}> trace VOP_ACCESS(1d539a95c8171931,d,ffff800020fe2be0,7810284dee8) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(8531b8cd402fd683,10,ffff800020fe2be0) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(340e81e36aad29fd) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(340e81e36aad29fd) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,8,0,2,77e8d842010) at Xsyscall+0x128 end of kernel end trace frame: 0x7810284df70, count: -4 ddb{0}> show registers rdi 0xffffffff813744ca VOP_ACCESS+0x3a rsi 0x8e rbp 0xffff8000210c3840 rbx 0x2f rdx 0x8f rcx 0xffff80000197e000 rax 0xffff80000197e000 r8 0x40 r9 0xfffffd807f7c76c0 r10 0xffd06597842ff2a2 r11 0x49dc36ea8b8f5c7e r12 0x100 r13 0 r14 0xffff800020fe2be0 r15 0xfffffd807f7c76c0 rip 0xffffffff813744da VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000210c37f0 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{0}> show proc PROC (syz-executor1) pid=245373 stat=onproc flags process=10 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020fe3798,0xffffffff822529f8 process=0xffff800020fe5a50 user=0xffff8000210be000, vmspace=0xfffffd807f00d840 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20466 500852 89548 60929 2 0x10 syz-executor1 *20466 245373 89548 60929 7 0x4000010 syz-executor1 72357 231505 1 0 3 0x100083 ttyin getty 89548 416866 28814 0 3 0x82 nanosleep syz-executor1 63492 283738 28814 0 2 0x2 syz-executor0 42338 127955 0 0 3 0x14200 bored sosplice 28814 501074 1732 0 3 0x82 thrsleep syz-fuzzer 28814 307668 1732 0 7 0x4000482 syz-fuzzer 28814 407642 1732 0 3 0x4000082 thrsleep syz-fuzzer 28814 243400 1732 0 3 0x4000082 kqread syz-fuzzer 28814 45138 1732 0 3 0x4000082 nanosleep syz-fuzzer 28814 271020 1732 0 3 0x4000082 thrsleep syz-fuzzer 28814 406179 1732 0 3 0x4000082 thrsleep syz-fuzzer 28814 338461 1732 0 3 0x4000082 thrsleep syz-fuzzer 28814 441600 1732 0 3 0x4000082 thrsleep syz-fuzzer 28814 247018 1732 0 3 0x4000082 thrsleep syz-fuzzer 28814 241051 1732 0 3 0x4000082 thrsleep syz-fuzzer 1732 362506 51663 0 3 0x10008a pause ksh 51663 121975 49713 0 3 0x92 select sshd 49713 343145 1 0 3 0x80 select sshd 13246 474677 72258 73 2 0x100090 syslogd 72258 251397 1 0 3 0x100082 netio syslogd 83161 253537 1 77 3 0x100090 poll dhclient 3914 510777 1 0 3 0x80 poll dhclient 13567 477362 0 0 3 0x14200 pgzero zerothread 34267 337514 0 0 3 0x14200 aiodoned aiodoned 46602 310053 0 0 3 0x14200 syncer update 11402 177897 0 0 3 0x14200 cleaner cleaner 63900 30382 0 0 3 0x14200 reaper reaper 32183 472258 0 0 3 0x14200 pgdaemon pagedaemon 5742 61018 0 0 3 0x14200 bored crynlk 93754 238293 0 0 3 0x14200 bored crypto 58104 229639 0 0 3 0x40014200 acpi0 acpi0 21497 381486 0 0 3 0x40014200 idle1 34884 7246 0 0 3 0x14200 bored softnet 73844 14909 0 0 3 0x14200 bored systqmp 19923 375452 0 0 3 0x14200 bored systq 61869 362436 0 0 3 0x40014200 bored softclock 73210 371375 0 0 3 0x40014200 idle0 1 207996 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper