pitrou opened a new issue, #49697: URL: https://github.com/apache/arrow/issues/49697
### Describe the bug, including details regarding any error messages, version, and platform. When we read an IPC message from an IPC file, we validate its associated body size against the amount required by the streaming decoder. However, we're currently only checking that the body size is large enough, not that it's exactly as expected. An invalid IPC file might advertise a `metaDataLength` that's larger than the actual serialized Flatbuffers payload. In that case, the associated body would start before the offset computed from the IPC file footer. This was found by OSS-Fuzz in https://oss-fuzz.com/testcase-detail/4778515122946048 ### Component(s) C++, Continuous Integration -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
