uvm_fault(0xffffffff83ad49d0, 0xffff800023922204, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ufsdirhash_lookup+0x6d0:        movzwl  0x4(%rax,%r14,1),%r12d
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*287898   7012      0           0  0x4000000    1K syz-executor
ufsdirhash_lookup(fffffd806e58f500,ffff80002a282402,f7,fffffd806e58f5e4,ffff800034bda1f0,0) at ufsdirhash_lookup+0x6d0 sys/ufs/ufs/ufs_dirhash.c:407
ufs_lookup() at ufs_lookup+0xf76 sys/ufs/ufs/ufs_lookup.c:214
VOP_LOOKUP(fffffd800deff630,ffff800034bda498,ffff800034bda4c8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff800034bda468) at vfs_lookup+0x98a sys/kern/vfs_lookup.c:567
namei(ffff800034bda468) at namei+0x7ca sys/kern/vfs_lookup.c:250
dolinkat(ffff8000fffef770,ffffff9c,200000000100,ffffff9c,200000000bc0,4) at dolinkat+0xea sys/kern/vfs_syscalls.c:1746
syscall(ffff800034bda670) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800034bda670) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xdbb2c209c90, count: 7
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ddb{1}> 
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ddb{1}>