Bug 1386076

Summary:	[DELL 7.3 BUG] Systemd assertion failure when PID 1 receives a zero-length message over notify socket.
Product:	Red Hat Enterprise Linux 7	Reporter:	Sujith <sujith_pandel>
Component:	systemd	Assignee:	systemd-maint
Status:	CLOSED DUPLICATE	QA Contact:	qe-baseos-daemons
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.3	CC:	jsynacek, kasmith, linux-bugs, sujith_pandel, systemd-maint-list
Target Milestone:	rc	Flags:	sujith_pandel: needinfo? (jsynacek)
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-10-18 07:18:09 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Sujith 2016-10-18 04:53:48 UTC

Description of problem:
This bug was reported upstream and looks to be a security vulnerability for the OS.
Request to pull in the required fix into RHEL-7.3 since this can be observed in RHEL-7.3 as well.

Version-Release number of selected component (if applicable):
systemd-219-30.el7

How reproducible:
Always

Steps to Reproduce:
1.Boot into RHEL-7.3
2. Run the script:
while true; do NOTIFY_SOCKET=/run/systemd/notify systemd-notify ""; done
3. system hangs; cannot reboot/shutdown.

Actual results:
system hangs; cannot reboot/shutdown.

Expected results:
System should not hang

Additional info:
Upstream discussion:
https://github.com/systemd/systemd/issues/4234

Upstream fix:
https://github.com/systemd/systemd/commit/8523bf7dd514a3a2c6114b7b8fb8f308b4f09fc4

https://github.com/systemd/systemd/commit/a86b76753d7868c2d05f046f601bc7dc89fc2203

Comment 2 Jan Synacek 2016-10-18 07:18:09 UTC


*** This bug has been marked as a duplicate of bug 1380175 ***

Comment 3 Sujith 2016-10-18 07:26:09 UTC

Hi Jan,
I do not have access to bug 1380175.
Can you tell me which build of RHEL-7.3 this fix is targeted for?

-
Sujith

Comment 4 Jan Synacek 2016-10-18 07:32:58 UTC

It's a 7.4 blocker, but has already been fixed in 7.2.

Comment 5 Jan Synacek 2016-10-18 07:33:35 UTC

And the build is systemd-219-30.el7_3.1.

Comment 6 Sujith 2016-10-20 06:01:57 UTC

RHEL-7.3-RC-2 does not have this fix since its having older 
systemd-219-30.el7.

Will it be included in RHEL-7.3-GA or RHEL-7.3 z-stream?