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Key: CORE-5762
Type: Bug Bug
Status: Closed Closed
Resolution: Fixed
Priority: Major Major
Assignee: Alexander Peshkov
Reporter: Alexander Peshkov
Votes: 0
Watchers: 2
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Firebird Core

Wrong transaction number in RDB$PAGES relation may cause infinite recusrion in engine and segfault

Created: 27/Feb/18 12:13 PM   Updated: 03/Mar/18 08:38 AM
Component/s: None
Affects Version/s: 2.5.0, 2.5.1, 2.5.2, 2.5.2 Update 1, 2.5.3, 2.1.7, 2.5.3 Update 1, 2.5.4, 2.5.5, 4.0 Initial, 3.0.0, 2.5.6, 3.0.1, 2.5.7, 3.0.2, 4.0 Alpha 1, 2.5.8, 3.0.3
Fix Version/s: 3.0.4, 4.0 Beta 1, 2.5.9

QA Status: Cannot be tested


 Description  « Hide
Normally only system (i.e. zero) transaction updates RDB$PAGES relation. But due to:
- update by SYSDBA user (FB <3 only),
- database decryption error,
- generic data corruption
wrong transaction number can be read by engine for this table. Certainly all cases are more or less abnormal but segfault is not good diagnostic for it.

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