Bug 54978 – Multiple client joins can leed into master crash

Bug 54978 - Multiple client joins can leed into master crash


Summary:	Multiple client joins can leed into master crash

Status:	NEW

Product:	UCS@school
Classification:	Unclassified
Component:	Samba 4
Version:	UCS@school 4.4
Hardware:	Other Linux

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

URL:
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Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2022-07-12 17:20 CEST by Dirk Schnick
Modified:	2022-07-12 17:20 CEST (History)
CC List:	0 users

See Also:
What kind of report is it?:	Bug Report
What type of bug is this?:	2: Improvement: Would be a product improvement
Who will be affected by this bug?:	1: Will affect a very few installed domains
How will those affected feel about the bug?:	2: A Pain – users won’t like this once they notice it
User Pain:	0.023
Enterprise Customer affected?:	Yes
School Customer affected?:	Yes
ISV affected?:
Waiting Support:
Flags outvoted (downgraded) after PO Review:
Ticket number:	2022071121000154
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Description Dirk Schnick

2022-07-12 17:20:16 CEST

A customer reported the problem after the app JAMF had a bug (this is reported and maybe already fixed). 
A detailed explanation can be found in the attached ticket. The bug of JAMF showed, that multiple domain joins can cause a OOM of UMC and in the scenario of the customer ldap server, what means the master is DoSed.

So the improvement would be to implement a limit for spawned processes.