Filesystem issue when running stat() test

[Yaxuan-w]

When running the stat.c test, we'll encounter the following error:

1758/32017MB	13.90 13.92 13.93 19/2584 1124993	(0) 
[1:0 0:45] 09:11:01 Wed Jun 05 [lind@7ae4e54fc08f: +1] ~/lind_project 
@(1:45) $ lind /stat.nexe

executing: [sel_ldr -a -- "runnable-ld.so" --library-path "/lib/glibc" /stat.nexe]
[1124995,775605376:21:11:06.232656] BYPASSING ALL ACL CHECKS
running stat("testfiles/statfile.txt")
size: 18
thread '<unnamed>' panicked at src/safeposix/filesystem.rs:607:13:
attempt to subtract with overflow
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 5

** User exited program with signal 6.

Here's the line that it's saying that it panicked on.

The error appears 3 times in 10 times running. I'm not sure if this problem is stat specific.