AVRO-4297: [ruby] Bound allocation when decoding length-prefixed values and collections#3862

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iemejia wants to merge 18 commits into

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iemejia:AVRO-4297-ruby-available-bytes

Commits on Jul 12, 2026

AVRO-4297: [ruby] Skip the collection check for decoders without bytes_remaining
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AVRO-4297: [ruby] Tie large-read tests to MAX_UNCHECKED_READ; lighter null assertion
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AVRO-4297: [ruby] Cap zero-byte collection element allocation
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AVRO-4297: [ruby] Test INT64_MIN block count is bounded
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AVRO-4297: [ruby] Correct inaccurate negative-count comment
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AVRO-4297: [ruby] Bound negative-block skip; reject negative block size
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AVRO-4297: [ruby] Cap read_long varint length; validate skip block size
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AVRO-4297: [ruby] Bounds-check union and enum indices
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AVRO-4297: [ruby] Memoize collection_limits per reader instance
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AVRO-4297: [ruby] Reject truncated reads; bounds-check skip_union index
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Commits on Jul 13, 2026