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Bug 1709741

Summary:	NetworkManager sends invalid SYSLOG_FACILITY values to the journal
Product:	Red Hat Enterprise Linux 8	Reporter:	Jan Synacek <jsynacek>
Component:	NetworkManager	Assignee:	Thomas Haller <thaller>
Status:	CLOSED ERRATA	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	8.0	CC:	atragler, bgalvani, fgiudici, fsumsal, jsynacek, lrintel, nhosoi, rkhan, rmeggins, sukulkar, systemd-maint-list, thaller, vbenes
Target Milestone:	rc	Flags:	pm-rhel: mirror+
Target Release:	8.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	NetworkManager-1.20.0-1.el7	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1707175	Environment:
Last Closed:	2019-11-05 22:29:37 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:
Embargoed:

Description Jan Synacek 2019-05-14 08:50:18 UTC

+++ This bug was initially created as a clone of Bug #1707175 +++

Description of problem:

According to https://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html#SYSLOG_FACILITY= the SYSLOG_FACILITY value is supposed to be an integer "(formatted as decimal string)" (and usually in the range 0 to 23).  However, on some systems, we see different values e.g.

> sudo journalctl -m -o export | grep SYSLOG_FACILITY= | grep -v 'SYSLOG_FACILITY=[0-9]' | sort -u
SYSLOG_FACILITY=CORE
SYSLOG_FACILITY=DEVICE
SYSLOG_FACILITY=DHCP4
SYSLOG_FACILITY=DHCP6
SYSLOG_FACILITY=DNS
SYSLOG_FACILITY=RFKILL
SYSLOG_FACILITY=SETTINGS

Either journald should somehow sanitize/normalize the SYSLOG_FACILITY values, or the documentation should be updated to notify log viewers/parsers to expect invalid values.

This is causing problems for some log collectors: https://bugzilla.redhat.com/show_bug.cgi?id=1703904#c3

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

--- Additional comment from Noriko Hosoi on 2019-05-08 01:38:50 CEST ---

Note: It'd be easy to use NetworkManager for reproducing the issue.  I got these non-digital string facility values in my testing.  All of them are from NetworkManager.
SYSLOG_FACILITY=AUDIT
SYSLOG_FACILITY=BT
SYSLOG_FACILITY=CORE
SYSLOG_FACILITY=DEVICE
SYSLOG_FACILITY=DHCP4
SYSLOG_FACILITY=DHCP6
SYSLOG_FACILITY=DNS
SYSLOG_FACILITY=MB
SYSLOG_FACILITY=PLATFORM
SYSLOG_FACILITY=RFKILL
SYSLOG_FACILITY=SETTINGS
SYSLOG_FACILITY=SUPPLICANT
SYSLOG_FACILITY=WIFI

Please note that the issue is not observed on RHEL7 even though NetworkManager is launched.

--- Additional comment from Jan Synacek on 2019-05-14 09:47:26 CEST ---

From my testing and analysis of the logs, it's obvious it's the NetworkManager that sends string (sometimes multiple in one entry) SYSLOG_FACILITY values directly. The only way to do that that I'm aware of is to send a journal message via the journal API with such non-standard value. NetworkManager is the culprit and should be fixed.

As far as I know, journald is not a syslog daemon and is not interested in sanitizing invalid syslog fields. This should be documented in systemd.journal-fields.

--- Additional comment from Jan Synacek on 2019-05-14 10:48:10 CEST ---

https://github.com/systemd/systemd/pull/12559

Comment 1 Thomas Haller 2019-05-14 11:17:07 UTC

On review: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/147

Comment 2 Thomas Haller 2019-05-17 19:31:09 UTC

Fixed on master. See https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/147

Comment 4 Vladimir Benes 2019-08-05 13:05:06 UTC

I see just 
SYSLOG_FACILITY=3
SYSLOG_FACILITY=10

and bunch of different numbers

[root@wsfd-netdev34-vm-9 ~]# sudo journalctl -m -o export | grep SYSLOG_FACILITY= | grep -v 'SYSLOG_FACILITY=[0-9]' | sort -u
Binary file (standard input) matches

Comment 6 errata-xmlrpc 2019-11-05 22:29:37 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:3623