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Segfault during TPC initialization #7905

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Segfault during TPC initialization#7905
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AlexPeshkoff
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affect-version: 4.0.4affect-version: 5.0 RC 1affect-version: 6.0 Initialfix-version: 4.0.5fix-version: 5.0 RC 2fix-version: 6.0 Alpha 1qa: cannot be testedrlsnotes60: noIntentionally not added to the Firebird 6.0 release notes.type: bug
@AlexPeshkoff

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@AlexPeshkoff
AlexPeshkoff
opened on Dec 4, 2023

Bug was introduced when fixing #7348.

When some error (for example - access denied to shared memory files) takes place in partially initialized TPC an attempt to access m_tpcHeader == nullptr causes segfault in StatusBlockData::clear() during error processing.

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affect-version: 4.0.4affect-version: 5.0 RC 1affect-version: 6.0 Initialfix-version: 4.0.5fix-version: 5.0 RC 2fix-version: 6.0 Alpha 1qa: cannot be testedrlsnotes60: noIntentionally not added to the Firebird 6.0 release notes.type: bug

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