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Bug 1982593

Summary: podman 3.2 - CNI-in-slirp4netns DNS gets broken when running a rootful container after running a rootless container
Product: Red Hat Enterprise Linux 8 Reporter: Valentin Rothberg <vrothber>
Component: podmanAssignee: Jindrich Novy <jnovy>
Status: CLOSED CURRENTRELEASE QA Contact: Yuhui Jiang <yujiang>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 8.4CC: bbaude, ddarrah, dornelas, dwalsh, jligon, jnovy, lsm5, mheon, pthomas, tsweeney, umohnani, ypu
Target Milestone: betaFlags: pm-rhel: mirror+
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: podman-3.3.0-0.13.el8 or newer Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-09-26 07:38:07 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 Valentin Rothberg 2021-07-15 08:44:53 UTC 
Description of problem:

CNI-in-slirp4netns DNS gets broken when running a rootful container after running a rootless container

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

v3.2.2


How reproducible:

Always.

Steps to Reproduce:
1. podman network create foo
2. podman run -it --rm --net=foo alpine wget -O- example.com
3. sudo podman run -it --rm --net=foo alpine wget -O- example.com

Actual results:

wget: bad address 'example.com'


Additional info:
Reported upstream: https://github.com/containers/podman/issues/10929
Upstream PR to fix main branch: https://github.com/containers/podman/pull/10936

Once the upstream got merged, we can backport to v3.2
Comment 1 Valentin Rothberg 2021-07-15 08:47:10 UTC 
Assigning to Paul who's already involved in analyzing and fixing the issue upstream.
Comment 2 Paul Holzinger 2021-07-16 08:38:06 UTC 
Backport PR https://github.com/containers/podman/pull/10945 has been merged into v3.2.
Comment 13 Red Hat Bugzilla 2023-09-15 01:11:31 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days