mapleFU commented on issue #46988:
URL: https://github.com/apache/arrow/issues/46988#issuecomment-3034299145
Can be fixed by the code below, I'll push a fix later when I back home
```diff
--- a/cpp/src/parquet/decoder.cc
+++ b/cpp/src/parquet/decoder.cc
@@ -659,7 +659,10 @@ inline int PlainDecoder<FLBAType>::DecodeArrow(
typename EncodingTraits<FLBAType>::Accumulator* builder) {
const int byte_width = this->type_length_;
const int values_decoded = num_values - null_count;
- if (ARROW_PREDICT_FALSE(len_ < byte_width * values_decoded)) {
+ if (int decode_bytes;
+ ARROW_PREDICT_FALSE(::arrow::internal::MultiplyWithOverflow(
+ byte_width, values_decoded, &decode_bytes) ||
+ len_ < decode_bytes)) {
ParquetException::EofException();
}
```
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