Bug 49696 – sync_to_ucs may recreate objects already deleted in OpenLDAP

Bug 49696 - sync_to_ucs may recreate objects already deleted in OpenLDAP


Summary:	sync_to_ucs may recreate objects already deleted in OpenLDAP

Status:	NEW

Product:	UCS
Classification:	Unclassified
Component:	S4 Connector
Version:	UCS 4.4
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	---
Assigned To:	Samba maintainers
QA Contact:	Samba maintainers

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Reported:	2019-06-19 12:31 CEST by Arvid Requate
Modified:	2021-03-02 21:42 CET (History)
CC List:	5 users (show)

See Also:	46535
What kind of report is it?:	Development Internal
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Description Arvid Requate

2019-06-19 12:31:23 CEST

sync_to_ucs may recreate objects already deleted in OpenLDAP. This was reported from the observation of flaky ucs-test. Looks like a race condition.

Unfortunately we have no proof for this in form of connector-s4.log. But code review and analysis of a sync sequence diagram indicate that this case is possible theoretically.

For Bug #47374 Felix added a method was_objectGUID_deleted_by_ucs(objectGUID) that should be used in add_in_ucs to avoid this case.

Comment 1 Florian Best

2021-03-02 21:42:23 CET

Is this still possible with UCS 5.0?