zhhyu7 opened a new pull request, #18664: URL: https://github.com/apache/nuttx/pull/18664
## Summary Move conn_unlock() after the data event handling in can_callback() and udp_callback(). ## Impact Previously, the connection lock was released immediately after devif_conn_event(), leaving the subsequent can_data_event() / net_dataevent() and read-ahead buffer operations unprotected. This could lead to a race condition where another context modifies the connection state while data is being stored into the read-ahead buffer. This PR moves conn_unlock() to after the entire callback processing is complete, ensuring the connection remains locked during both the event dispatch and the data buffering phases. ## Testing Build and runtime test on CAN and UDP network configurations. Verified no deadlock or lock ordering issues introduced by extending the lock hold duration. And the issue that high-priority recv after poll fails to read data has also been resolved. -- 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]
