uvm_fault(0xffffffff83a877c8, 0xffff800026862004, 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
*235525  23387      0         0x2          0    0  syz-executor
ufs_lookup() at ufs_lookup+0x613 sys/ufs/ufs/ufs_lookup.c:279
VOP_LOOKUP(fffff1807c676c08,ffff80002a7ef698,ffff80002a7ef6c8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80002a7ef668) at vfs_lookup+0x94a sys/kern/vfs_lookup.c:580
namei(ffff80002a7ef668) at namei+0x7c3 sys/kern/vfs_lookup.c:250
dounlinkat(ffff80002a777240,ffffff9c,7038215f6ce0,8) at dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1806
syscall(ffff80002a7ef830) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7ef830) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7038215f6cd0, count: 8
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