[SERVER-71568] Fix race condition related to ChangeStreamOptions access Created: 23/Nov/22  Updated: 29/Oct/23  Resolved: 25/Nov/22

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 6.0.4, 6.2.0-rc2, 6.3.0-rc0

Type: Bug Priority: Major - P3
Reporter: Mindaugas Malinauskas Assignee: Mindaugas Malinauskas
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Backports
Backwards Compatibility: Fully Compatible
Operating System: ALL
Backport Requested:
v6.2, v6.1, v6.0
Sprint: QE 2022-11-28
Participants:

 Description   

ChangeStreamOptionsManager has a race condition prone interface element - const ChangeStreamOptions& ChangeStreamOptionsManager::getOptions(OperationContext* opCtx)  which returns a reference to internal data structure. This makes any read access of the ChangeStreamOptions to introduce a race condition.



 Comments   
Comment by Githook User [ 30/Nov/22 ]

Author:

{'name': 'Mindaugas Malinauskas', 'email': 'mindaugas.malinauskas@mongodb.com'}

Message: SERVER-71568 Fix race condition related to access to ChangeStreamOptions

(cherry picked from commit 92d8c8e3aaf9b4914db3b9fd4a10ef3bb9595f07)
Branch: v6.0
https://github.com/mongodb/mongo/commit/15efdbab0a701fb236cbed61ca2d4e6cdd9c734d

Comment by Githook User [ 30/Nov/22 ]

Author:

{'name': 'Mindaugas Malinauskas', 'email': 'mindaugas.malinauskas@mongodb.com'}

Message: SERVER-71568 Fix race condition related to access to ChangeStreamOptions

(cherry picked from commit 92d8c8e3aaf9b4914db3b9fd4a10ef3bb9595f07)
Branch: v6.2
https://github.com/mongodb/mongo/commit/e62af19b574822b1f0b379b4b6e0653765f7f765

Comment by Githook User [ 24/Nov/22 ]

Author:

{'name': 'Mindaugas Malinauskas', 'email': 'mindaugas.malinauskas@mongodb.com'}

Message: SERVER-71568 Fix race condition related to access to ChangeStreamOptions
Branch: master
https://github.com/mongodb/mongo/commit/92d8c8e3aaf9b4914db3b9fd4a10ef3bb9595f07

Comment by Mindaugas Malinauskas [ 24/Nov/22 ]

alexander.neben@mongodb.com No, this seems to be not related to neither BF-26620 nor BF-26636 based on traces and tests failed.

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