uvm_fault(0xfffffd807f00db58, 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(0xfffffd807f00db58, 0x8, 0, 1) -> e VOP_ACCESS(18facba5ff7d304a,d,ffff800020fe3530,df8a1e93338) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 end trace frame: 0xffff8000210c30a0, count: 0 ddb{0}> trace VOP_ACCESS(18facba5ff7d304a,d,ffff800020fe3530,df8a1e93338) at VOP_ACCESS+0x4a sys/kern/vfs_vops.c:189 sys_unveil(88a1e14d56a41c82,10,ffff800020fe3530) at sys_unveil+0x317 sys/kern/vfs_syscalls.c:925 syscall(1a47efcdb947cad8) at syscall+0x5a0 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(1a47efcdb947cad8) at syscall+0x5a0 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,8,0,2,df5aed7c010) at Xsyscall+0x128 end of kernel end trace frame: 0xdf8a1e933c0, count: -4 ddb{0}> show registers rdi 0xffffffff8185116a VOP_ACCESS+0x3a rsi 0x8e rbp 0xffff8000210c2b80 rbx 0x2f rdx 0x8f rcx 0xffff800001744000 rax 0xffff800001744000 r8 0x40 r9 0xfffffd807f7c7660 r10 0x74a7234c9b287787 r11 0x143c72fbb5cfaa7f r12 0x100 r13 0 r14 0xffff800020fe3530 r15 0xfffffd807f7c7660 rip 0xffffffff8185117a VOP_ACCESS+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000210c2b30 ss 0x10 VOP_ACCESS+0x4a: movq 0x8(%r13),%rax ddb{0}> show proc PROC (syz-executor1) pid=209846 stat=onproc flags process=10 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020fe24c8,0xffffffff82261fc8 process=0xffff80002101ba58 user=0xffff8000210be000, vmspace=0xfffffd807f00db58 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 23620 120194 16967 60929 2 0x10 syz-executor1 *23620 209846 16967 60929 7 0x4000010 syz-executor1 9517 509791 47705 0 7 0x2 syz-executor0 16967 248836 47705 0 3 0x82 nanosleep syz-executor1 39588 508498 1 0 3 0x100083 ttyin getty 47534 253131 0 0 3 0x14200 bored sosplice 47705 355665 46006 0 3 0x82 nanosleep syz-fuzzer 47705 375641 46006 0 3 0x4000082 nanosleep syz-fuzzer 47705 57462 46006 0 3 0x4000082 thrsleep syz-fuzzer 47705 481230 46006 0 3 0x4000082 kqread syz-fuzzer 47705 117840 46006 0 3 0x4000082 thrsleep syz-fuzzer 47705 432084 46006 0 3 0x4000082 thrsleep syz-fuzzer 47705 17850 46006 0 3 0x4000082 thrsleep syz-fuzzer 47705 516221 46006 0 3 0x4000082 thrsleep syz-fuzzer 47705 421129 46006 0 3 0x4000082 thrsleep syz-fuzzer 47705 173625 46006 0 3 0x4000082 thrsleep syz-fuzzer 46006 231487 92257 0 3 0x10008a pause ksh 92257 336082 55797 0 3 0x92 select sshd 55797 106745 1 0 3 0x80 select sshd 57427 182171 38545 73 2 0x100090 syslogd 38545 268766 1 0 3 0x100082 netio syslogd 3502 396845 1 77 3 0x100090 poll dhclient 37658 64864 1 0 3 0x80 poll dhclient 45296 336390 0 0 3 0x14200 pgzero zerothread 85380 428387 0 0 3 0x14200 aiodoned aiodoned 77837 422276 0 0 3 0x14200 syncer update 41788 75997 0 0 3 0x14200 cleaner cleaner 67204 315774 0 0 3 0x14200 reaper reaper 7718 52556 0 0 3 0x14200 pgdaemon pagedaemon 58232 370576 0 0 3 0x14200 bored crynlk 38692 226365 0 0 3 0x14200 bored crypto 4889 16261 0 0 3 0x40014200 acpi0 acpi0 3823 498051 0 0 3 0x40014200 idle1 31021 31997 0 0 3 0x14200 bored softnet 26281 1371 0 0 3 0x14200 bored systqmp 23725 487754 0 0 3 0x14200 bored systq 42653 484925 0 0 3 0x40014200 bored softclock 9538 221540 0 0 3 0x40014200 idle0 1 387171 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper