uvm_fault(0xffffffff83ad3130, 0xffff80002391200c, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ufs_direnter+0x23b:     movl    0(%r14),%r15d
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 193361  97778      0           0          0    0  syz-executor
*188549  97778      0           0  0x4000000    1K syz-executor
ufs_direnter(fffffd805f4ba7e0,fffffd805f4ba048,ffff80002a278e58,ffff80002a2791b8,0) at ufs_direnter+0x23b sys/ufs/ufs/ufs_lookup.c:764
ufs_makeinode(2000,fffffd805f4ba7e0,ffff80002a279188,ffff80002a2791b8) at ufs_makeinode+0x51b sys/ufs/ufs/ufs_vnops.c:1768
ufs_mknod(ffff80002a279030) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
VOP_MKNOD(fffffd805f4ba7e0,ffff80002a279188,ffff80002a2791b8,ffff80002a2790b8) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
domknodat(ffff80002a243768,ffffff9c,200000000280,2000,1e60) at domknodat+0x469 sys/kern/vfs_syscalls.c:1659
syscall(ffff80002a279350) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a279350) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb83b1a3b0c0, count: 8
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{1}> 
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xffffffff83ad3130, 0xffff80002391200c, 0, 1) -> d
ddb{1}> trace
ufs_direnter(fffffd805f4ba7e0,fffffd805f4ba048,ffff80002a278e58,ffff80002a2791b8,0) at ufs_direnter+0x23b sys/ufs/ufs/ufs_lookup.c:764
ufs_makeinode(2000,fffffd805f4ba7e0,ffff80002a279188,ffff80002a2791b8) at ufs_makeinode+0x51b sys/ufs/ufs/ufs_vnops.c:1768
ufs_mknod(ffff80002a279030) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
VOP_MKNOD(fffffd805f4ba7e0,ffff80002a279188,ffff80002a2791b8,ffff80002a2790b8) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
domknodat(ffff80002a243768,ffffff9c,200000000280,2000,1e60) at domknodat+0x469 sys/kern/vfs_syscalls.c:1659
syscall(ffff80002a279350) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a279350) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb83b1a3b0c0, count: -7
ddb{1}>