Bug 2192859

Summary:	udev adds an unwanted altname to a renamed netdevice
Product:	Red Hat Enterprise Linux 9	Reporter:	Michal Schmidt <mschmidt>
Component:	systemd	Assignee:	David Tardon <dtardon>
Status:	CLOSED MIGRATED	QA Contact:	Frantisek Sumsal <fsumsal>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	9.2	CC:	dtardon, jamacku, keyoung, msekleta, sscheink, systemd-maint-list
Target Milestone:	rc	Keywords:	Bugfix, MigratedToJIRA, Triaged
Target Release:	---	Flags:	pm-rhel: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-09-21 12:33:50 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 Michal Schmidt 2023-05-03 10:51:25 UTC

Description of problem:
In https://issues.redhat.com/browse/OCPBUGS-11281, it has been observed that when you rename a net device with 'ip link ... set name ...', the device's previous name becomes its altname. This causes a problem when you try to rename the device back and the existence of the altname prevents you. OCP ran into this issue.

Version-Release number of selected component (if applicable):
in RHEL 9.2: systemd-252-8.el9.x86_64
also in Fedora ELN: systemd-253.2-1.eln126.x86_64

How reproducible:
always

Steps to Reproduce:

[root@localhost ~]# ip link show enp1s0
2: enp1s0: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:a2:18:9e brd ff:ff:ff:ff:ff:ff
[root@localhost ~]# ip link set enp1s0 name foo
[root@localhost ~]# ip link show foo
2: foo: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:a2:18:9e brd ff:ff:ff:ff:ff:ff
    altname enp1s0

Actual results:
'foo' now has 'enp1s0' as its altname.

Expected results:
No new altname.

Additional info:
In RHEL 8, it behaves as expected.

Proposed fix for upstream: 
https://github.com/systemd/systemd/pull/27506

Comment 1 Sebastian Scheinkman 2023-05-22 12:11:25 UTC

A different PR to handle this was merged https://github.com/systemd/systemd/pull/27655

Do you know when RHEL will be able to pick this one?

Comment 2 Michal Sekletar 2023-08-17 12:08:41 UTC

(In reply to Sebastian Scheinkman from comment #1)
> A different PR to handle this was merged
> https://github.com/systemd/systemd/pull/27655
> 
> Do you know when RHEL will be able to pick this one?

We are going to address the issue in RHEL-9.3.

Comment 9 RHEL Program Management 2023-09-21 12:28:32 UTC

Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.

Comment 10 RHEL Program Management 2023-09-21 12:33:50 UTC

This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

Due to differences in account names between systems, some fields were not replicated.  Be sure to add yourself to Jira issue's "Watchers" field to continue receiving updates and add others to the "Need Info From" field to continue requesting information.

To find the migrated issue, look in the "Links" section for a direct link to the new issue location. The issue key will have an icon of 2 footprints next to it, and begin with "RHEL-" followed by an integer.  You can also find this issue by visiting https://issues.redhat.com/issues/?jql= and searching the "Bugzilla Bug" field for this BZ's number, e.g. a search like:

"Bugzilla Bug" = 1234567

In the event you have trouble locating or viewing this issue, you can file an issue by sending mail to rh-issues. You can also visit https://access.redhat.com/articles/7032570 for general account information.

Comment 11 Red Hat Bugzilla 2024-01-20 04:25:44 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days