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https://issues.apache.org/jira/browse/AVRO-4285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismaël Mejía reassigned AVRO-4285:
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Assignee: Ismaël Mejía
> [c++] Enforce a maximum decompressed block size
> -----------------------------------------------
>
> Key: AVRO-4285
> URL: https://issues.apache.org/jira/browse/AVRO-4285
> Project: Apache Avro
> Issue Type: Sub-task
> Components: c++
> Affects Versions: 1.11.5, 1.12.1
> Reporter: Ismaël Mejía
> Assignee: Ismaël Mejía
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.2
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> {{DataFileReaderBase::readDataBlock()}} in {{lang/c++/impl/DataFile.cc}}
> decompresses deflate/snappy blocks into a buffer that grows without an upper
> bound, and {{lang/c++/impl/ZstdDecompressWrapper.cc}} trusts the zstd frame
> content size. The existing {{BoundedInputStream}} bounds only the compressed
> input, not the decompressed output.
> Enforce a configurable maximum decompressed size across the codecs
> before/while growing the output buffer, and fail decoding with a clear error
> when exceeded. Add a test with a high-ratio block.
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