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Fix GH-23741: Reset PDO DBLIB callback userdata - #23746
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prateekbhujel wants to merge 1 commit into
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Sorry for the late reply. From a safety perspective, I’ve decided to go with #23751 instead. |
prateekbhujel
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September 30, 2026 10:55
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When a PDO DBLIB statement is destroyed, DB-Library can retain its callback userdata pointer to the statement error state. A later callback during connection shutdown can then access freed memory after a failed query.
Reset the userdata to the connection error state before freeing the statement state.
Fixes #23741