uvm_fault(0xffffffff83899a28, 0xffff800026092004, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ufs_lookup+0x5e1:       movzwl  0x4(%r15,%rbx,1),%r14d
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*346082  63775      0           0  0x4000000    1  syz-executor
 217796  12009      0           0  0x4000000    0  syz-executor
ufs_lookup() at ufs_lookup+0x5e1 sys/ufs/ufs/ufs_lookup.c:279
VOP_LOOKUP(fffffd8068fa2a50,ffff80003c5d0f38,ffff80003c5d0f68) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80003c5d0f08) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
namei(ffff80003c5d0f08) at namei+0x7aa sys/kern/vfs_lookup.c:250
dolinkat(ffff80002a432f98,ffffff9c,400000000100,ffffff9c,0,4) at dolinkat+0xd4 sys/kern/vfs_syscalls.c:1725
syscall(ffff80003c5d1110) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c5d1110) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x109436653a0, count: 8
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