uvm_fault(0xffffffff83aa1e68, 0xffff80001af62004, 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
*427608  78779      0           0  0x4000000    0  syz-executor
ufs_lookup() at ufs_lookup+0x613 sys/ufs/ufs/ufs_lookup.c:279
VOP_LOOKUP(fffff2007bb47878,ffff80002a84b510,ffff80002a84b540) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80002a84b4e0) at vfs_lookup+0x94a sys/kern/vfs_lookup.c:580
namei(ffff80002a84b4e0) at namei+0x7c3 sys/kern/vfs_lookup.c:250
vn_open(ffff80002a84b4e0,10223,0) at vn_open+0x22e sys/kern/vfs_vnops.c:109
doopenat(ffff80002a772540,ffffff9c,200000000000,10622,0,0,d8393688a52efe54) at doopenat+0x352 sys/kern/vfs_syscalls.c:1162
sys_openat(ffff80002a772540,ffff80002a84b780,ffff80002a84b6d0) at sys_openat+0x58 sys/kern/vfs_syscalls.c:1101
syscall(ffff80002a84b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a84b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5555235bb60, count: 6
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