[jira] [Updated] (ARROW-11518) [C++] [Parquet] Parquet reader crashes when reading boolean columns

["Neal Richardson (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-11518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neal Richardson updated ARROW-11518:
------------------------------------
    Fix Version/s:     (was: 5.0.0)
                   6.0.0

> [C++] [Parquet] Parquet reader crashes when reading boolean columns
> -------------------------------------------------------------------
>
>                 Key: ARROW-11518
>                 URL: https://issues.apache.org/jira/browse/ARROW-11518
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>    Affects Versions: 3.0.0
>            Reporter: Andrey Klochkov
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 6.0.0
>
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> Parquet file reader crashes while reading boolean columns in {{TypedColumnReaderImpl<DType>::Skip}}. 
> The calculation of the buffer size in the code below is not correct as {{value_byte_size}} is 1 for booleans, and the same buffer is used for definition and repetition levels data which requires 2 bytes per value.
> {code}
>      // This will be enough scratch space to accommodate 16-bit levels or any
>       // value type
>       std::shared_ptr<ResizableBuffer> scratch = AllocateBuffer(
>           this->pool_, batch_size * type_traits<DType::type_num>::value_byte_size);
>       do {
>         batch_size = std::min(batch_size, rows_to_skip);
>         values_read =
>             ReadBatch(static_cast<int>(batch_size),
>                       reinterpret_cast<int16_t*>(scratch->mutable_data()),
>                       reinterpret_cast<int16_t*>(scratch->mutable_data()),
>                       reinterpret_cast<T*>(scratch->mutable_data()), &values_read);
>         rows_to_skip -= values_read;
>       } while (values_read > 0 && rows_to_skip > 0);
> {code}



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