copy_time_from_user allows the use of non-normalized timespec and timeval
As seen in #9407, our kernel does not check whether these times are normalized.
Normalized means that the finer time unit (microseconds in this case)
does not exceed a full coarse unit (seconds in this case).
(from #9407)
Or, put more simply:
When struct timespec values are produced by GNU C Library functions, the value in this field will always be greater than or equal to zero, and less than 1,000,000,000. When struct timespec values are supplied to GNU C Library functions, the value in this field must be in the same range.
Tests inside of TestTime.cpp also have many of these times constructed and passed, which is not a proper use, and should not be supported. The invalid uses should probably be inverted, to expect them to fail instead of pass.
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