uvm_fault(0xffffffff839d4af0, 0xffff800025c82004, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ufs_lookup+0x613:       movzwl  0x4(%r15,%r14,1),%ebx
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
* 27600  16171      0      0x2000  0x4000000    0  syz-executor
ufs_lookup() at ufs_lookup+0x613 sys/ufs/ufs/ufs_lookup.c:279
VOP_LOOKUP(fffffd805bfd38a0,ffff80002a77d958,ffff80002a77d8f0) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
unveil_find_cover(fffffd805bfd38a0,ffff80003c90b4e0) at unveil_find_cover+0x17c sys/kern/kern_unveil.c:277
unveil_add_vnode(ffff80003c90b4e0,fffffd805bfd38a0) at unveil_add_vnode+0xc6 sys/kern/kern_unveil.c:378
unveil_add(ffff80003c90b4e0,ffff80002a77dae8,ffff80002a77dba3) at unveil_add+0x3e0 sys/kern/kern_unveil.c:475
sys_unveil(ffff80003c90b4e0,ffff80002a77dcc0,ffff80002a77dc10) at sys_unveil+0x61c sys/kern/vfs_syscalls.c:1032
syscall(ffff80002a77dcc0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a77dcc0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xaffadb86230, count: 7
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xffffffff839d4af0, 0xffff800025c82004, 0, 1) -> d
ddb>