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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.
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