fix(codec): validate scan ranges against file size - #1618
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Signed-off-by: Minh Vu <vuhoangminh97@gmail.com>
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What changed
Validate that encoded and decoded
FileScanTaskbyte ranges fit within the primary data file. The bounds check uses subtraction sostart + lengthcannot overflow.Why
The codec rejected negative values but accepted starts beyond EOF, ranges ending beyond EOF, and overflowing range sums. Those values cannot describe a valid segment of the encoded data file.
Testing
go test ./codec