OSV-2020-180 Heap-buffer-overflow in parquet::PlainByteArrayDecoder::DecodeArrowDense

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21009 Crash type: Heap-buffer-overflow READ 4 Crash state: parquet::PlainByteArrayDecoder::DecodeArrowDense parquet::PlainByteArrayDecoder::DecodeArrow parquet::internal::ByteArrayChunkedRecordReader::ReadValuesSpaced...