Argument cannot be negative

The negative argument will be interpreted as a very large unsigned value. Negative value used as argument to a function expecting a positive value (for example, size of buffer or allocation)
/src/live_restore/live_restore_fs.c:765: NEGATIVE_RETURNS 163858 Variable "fd" tests negative.
/src/live_restore/live_restore_fs.c:802: NEGATIVE_RETURNS 163858 "fd" is passed to a parameter that cannot be negative.