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Malformed Communication Packet (8.0.23, 8.0.24, 8.0.25) (Doc ID 2789968.1)

Last updated on JULY 07, 2021

Applies to:

MySQL Connectors - Version 8.0 to 8.0 [Release 8.0]
Information in this document applies to any platform.

Symptoms

The C client library could produce a "Malformed communication packet" error if a prepared statement parameter was longer than 8KB and the next parameter represented a NULL value. 

This affects both Connector/ODBC and C/C++ connectors, versions 8.0.23, 8.0.24, 8.0.25.

Changes

Connector/ODBC 8.0.22 and Connector/C/C++ 8.0.22 worked fine.  After upgrade,  the problem occurs.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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