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Bug 2176813 - passt-selinux interfaces need update to allow libvirt to run domain as root, map arbitrary ports
Summary: passt-selinux interfaces need update to allow libvirt to run domain as root, ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: passt
Version: 9.2
Hardware: All
OS: Linux
medium
urgent
Target Milestone: rc
: 9.2
Assignee: Stefano Brivio
QA Contact: Lei Yang
URL:
Whiteboard:
Depends On:
Blocks: 2179034
TreeView+ depends on / blocked
 
Reported: 2023-03-09 11:27 UTC by Stefano Brivio
Modified: 2024-01-31 05:37 UTC (History)
8 users (show)

Fixed In Version: passt-0^20230222.g4ddbcb9-2.el9_2
Doc Type: No Doc Update
Doc Text:
Clone Of:
: 2179034 (view as bug list)
Environment:
Last Closed: 2023-05-09 07:43:36 UTC
Type: Bug
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-151212 0 None None None 2023-03-09 11:28:03 UTC
Red Hat Product Errata RHBA-2023:2292 0 None None None 2023-05-09 07:43:51 UTC

Description Stefano Brivio 2023-03-09 11:27:32 UTC
The SELinux policy interfaces in the current passt-selinux package for RHEL 9.2 only allow libvirt to run a guest domain as unprivileged user, and to map ports in "http_port_t".

However, libvirt guests can be started as root, and the guest configuration can very reasonably include arbitrary port mappings.

We need these changes from upstream:

  https://passt.top/passt/commit/?id=41bc669866b9e408d8d4966ee06e01784949b98d
  contrib/selinux: Let passt write to stdout and stderr when it starts

  https://passt.top/passt/commit/?id=de9b0cb5fee2ea00ed7e7877ef9be8c446bca134
  contrib/selinux: Allow binding and connecting to all UDP and TCP ports

  https://passt.top/passt/commit/?id=d361fe6e809bdf3539d764cfa5058f46ce51bcbf
  contrib/selinux: Let interface users set paths for log, PID, socket files

to have proper libvirt support with SELinux on RHEL 9.2.

See also bz2172268 for the matching policy update on libvirt's side, which I'm also going to update in a bit.

Comment 30 errata-xmlrpc 2023-05-09 07:43:36 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 (passt 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-2023:2292


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