Operational Defect Database
BugZero found this defect 19 days ago.
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MongoDB | 2657880
Wrap multikey metadata maintenance inside a side transaction for wildcard indexes
Last update date:
4/30/2024
Affected products:
MongoDB Server
Affected releases:
4.2.0
4.4.0
5.0.0
6.0.0
7.0.0
8.0.0-rc0
Fixed releases:
No fixed releases provided.
Description:
Info
SERVER-41766 introduced a side transaction to commit multikey metadata changes immediately and independently of the parent multi-document transaction to avoid a corner case resulting in an infinite prepare conflict. However, wildcard indexes maintain the multikey metadata paths inside the index table itself, which is different from other indexes which maintain them inside the catalog table, and the code neglects to wrap wildcard multikey paths maintenance inside the side transaction, making wildcard multikey setting vulnerable to infinite prepare conflicts.
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