Bug 902466

Summary:	glibc: Remove the need for AI_ADDRCONFIG workarounds with localhost.
Product:	Red Hat Enterprise Linux 7	Reporter:	Noriko Hosoi <nhosoi>
Component:	glibc	Assignee:	glibc team <glibc-bugzilla>
Status:	CLOSED WONTFIX	QA Contact:	qe-baseos-tools-bugs
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	7.0	CC:	ashankar, codonell, ddumas, dpal, fweimer, jgalipea, jsynacek, mkosek, mnewsome, nhosoi, nkinder, pfrankli, rcritten, rmeggins, sgoveas, tsmetana
Target Milestone:	pre-dev-freeze	Keywords:	Reopened
Target Release:	7.6
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	895561	Environment:
Last Closed:	2019-06-07 11:59:02 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:
Bug Depends On:
Bug Blocks:	880347, 1056252

Comment 3 Jan Vcelak 2013-01-22 10:24:43 UTC

I guess this is caused by adding AI_ADDRCONF flag to getaddrinfo() as a fix for bug #835012.

Comment 4 Jan Vcelak 2013-01-22 10:26:17 UTC

I meant AI_ADDRCONFIG.

Comment 5 Jan Vcelak 2013-01-22 10:43:57 UTC

Pavel, do you agree that this is caused by AI_ADDRCONFIG? Are there any plans to fix getaddrinfo() in RHEL-6?

https://fedoraproject.org/wiki/Networking/NameResolution/ADDRCONFIG

Comment 6 Pavel Šimerda (pavlix) 2013-01-22 11:15:09 UTC

(In reply to comment #5)
> Pavel, do you agree that this is caused by AI_ADDRCONFIG? Are there any
> plans to fix getaddrinfo() in RHEL-6?
> 
> https://fedoraproject.org/wiki/Networking/NameResolution/ADDRCONFIG

Looks like. Resolution of 127.0.0.1 with AI_ADDRCONFIG on a host with only 127.0.0.1 fails. Using 'localhost' instead should work as a workaround to connect through IPv6.

I'm working on upstream patches and even that is a long run. Can't speak for RHEL. Forwarding the question to Carlos.

Comment 12 Jan Vcelak 2013-01-23 11:28:47 UTC

Moving to 'glibc' as the real problem is in getaddrinfo().

Comment 14 Carlos O'Donell 2013-01-24 17:51:12 UTC

I can't comment on the availability of a fix for this in RHEL 6.

I am aware of these issues and they are at the top of my priority list to fix.

Unfortunately they are complex and create significant compatibility risk which requires thorough testing to ensure we don't break userspace.

Thank you for your patience :-)

Comment 23 Florian Weimer 2017-11-08 09:26:03 UTC

Red Hat Enterprise Linux 6 transitioned to the Production 3 Phase on May 10, 2017.  During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available.

This issue does not qualify, but we will consider incorporating an upstream change into Red Hat Enterprise Linux 7 if it becomes available.

Comment 24 Red Hat Bugzilla Rules Engine 2017-11-08 09:26:12 UTC

Development Management has reviewed and declined this request. You may appeal this decision by reopening this request.

Comment 27 Carlos O'Donell 2019-06-07 11:59:02 UTC

Most applications have workarounds in place for AI_ADDRCONFIG and localhost access. Changing this behaviour in any released version of RHEL will have serious repercussions for the workarounds. We also believe that this may be unfixable upstream except perhaps in a future glibc 3.0, for all the same reasons we can't easily fix this in RHEL. I'm going to mark this as CLOSED/WONTFIX, and we'll track this issue upstream in: https://sourceware.org/bugzilla/show_bug.cgi?id=12398.