pitrou opened a new pull request, #49230: URL: https://github.com/apache/arrow/pull/49230
### Rationale for this change Found by OSS-Fuzz in https://issues.oss-fuzz.com/issues/482161154 ### Are these changes tested? By integration test and fuzz regression file. There are no unit tests in the C++ test suite that exercise V4 metadata IPC files with top-level union validity bitmaps. ### Are there any user-facing changes? No. **This PR contains a "Critical Fix".** (If the changes fix either (a) a security vulnerability, (b) a bug that caused incorrect or invalid data to be produced, or (c) a bug that causes a crash (even when the API contract is upheld), please provide explanation. If not, you can remove this.) -- 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]
