Bug 2165049

Summary:	xdmcp does not load gdm with ipv6 address
Product:	Red Hat Enterprise Linux 9	Reporter:	Michal Odehnal <modehnal>
Component:	gdm	Assignee:	Ray Strode [halfline] <rstrode>
Status:	CLOSED ERRATA	QA Contact:	Michal Odehnal <modehnal>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	9.2	CC:	hdegoede, rstrode
Target Milestone:	rc	Keywords:	Triaged
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	gdm-40.1-21.el9	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-09 07:41:47 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:
Deadline:	2023-02-20

Description Michal Odehnal 2023-01-27 14:13:37 UTC

Description of problem:
When using xdmcp via Xephyr with IPv6 address the gdm does not show.

Version-Release number of selected component (if applicable):
gdm-40.1-18.el9.x86_64

How reproducible:
100%

Steps to Reproduce:
1. $ Xephyr :99 -query ::1
2.
3.

Actual results:
Black screen, empty journal with gdm debug set.

Expected results:
gdm login screen loads and journal has some data.

Additional info:
Following command works with no issues
$ Xephyr :99 -query localhost

Comment 1 Michal Odehnal 2023-01-27 14:16:13 UTC

When the command in reproducer is running long enough I get 'XDM: too many retransmissions, declaring session dead' in the console.

Comment 9 errata-xmlrpc 2023-05-09 07:41:47 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 (gdm bug fix and enhancement update), 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-2023:2278