Bug 1921152

Summary:	failed to send packet: Network is unreachable when resolution is busy.
Product:	[Fedora] Fedora	Reporter:	Petr Menšík <pemensik>
Component:	dnsmasq	Assignee:	Petr Menšík <pemensik>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	34	CC:	aegorenk, code, dns-sig, dougsland, itamar, jima, laine, pemensik, thozza, veillard
Target Milestone:	---	Keywords:	Regression, Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	dnsmasq-2.84-1.fc32 dnsmasq-2.84-1.fc33	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1921153 (view as bug list)		Environment:
Last Closed:	2021-02-20 01:34:08 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:	1917787
Bug Blocks:	1921153

Description Petr Menšík 2021-01-27 15:36:46 UTC

Description of problem:
In fix of CVE-2020-25686 was created regression, which applies when multiple address families send request for the same name. In that case, only one family receives responses.

Version-Release number of selected component (if applicable):
dnsmasq-2.83-1.fc33

How reproducible:
100%

Steps to Reproduce:
1. send multiple ipv4 requests for one name
2. send multiple ipv6 requests for the same name
3. both address families join single request

Actual results:
Only half of responses arrives, one address family will not receive

Expected results:
Both address families receive all responses.


Additional info:

Discovered after new upstream release, reported on mailing list[1]. Fixed by release of dnsmasq-2.84

1. https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2021q1/014613.html

Comment 1 Petr Menšík 2021-01-27 16:07:19 UTC

Fixed by upstream commits:
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=3f535da79e7a42104543ef5c7b5fa2bed819a78b
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=04490bf622ac84891aad6f2dd2edf83725decdee

Comment 2 Fedora Update System 2021-01-27 17:15:49 UTC

FEDORA-2021-039b93d5e4 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2021-039b93d5e4

Comment 3 Fedora Update System 2021-01-27 17:32:21 UTC

FEDORA-2021-2e4c3d5a9d has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2021-2e4c3d5a9d

Comment 4 Fedora Update System 2021-01-27 17:32:44 UTC

FEDORA-2021-2e4c3d5a9d has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2021-2e4c3d5a9d

Comment 5 Fedora Update System 2021-01-28 01:54:18 UTC

FEDORA-2021-039b93d5e4 has been pushed to the Fedora 33 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-039b93d5e4`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-039b93d5e4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2021-01-28 04:13:34 UTC

FEDORA-2021-2e4c3d5a9d has been pushed to the Fedora 32 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-2e4c3d5a9d`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-2e4c3d5a9d

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Ben Cotton 2021-02-09 15:43:30 UTC

This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.

Comment 8 Fedora Update System 2021-02-20 01:34:08 UTC

FEDORA-2021-2e4c3d5a9d has been pushed to the Fedora 32 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 9 Fedora Update System 2021-03-02 15:55:00 UTC

FEDORA-2021-039b93d5e4 has been pushed to the Fedora 33 stable repository.
If problem still persists, please make note of it in this bug report.