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Created attachment 1961104 [details]
journalctl centos stream 9

Description of problem:
Selinux blocks wg-quick from establishing a wireguard connection.
This is probably the same bug I also have on Fedora 38:
https://bugzilla.redhat.com/show_bug.cgi?id=2192140

After running "sudo setenforce 0" the connection can be established.

The wireguard config was created by ProtonVPN.

I will add the journalctl output from Centos Stream 9 and the redacted wireguard config as an attachment.


Version-Release number of selected component (if applicable):
38.1.11


How reproducible:
Always

Steps to Reproduce:
1. Get a wireguard config from ProtonVPN
2. (I commented out the "DNS" option in the config file)
3. Copy it to /etc/wireguard
4. Try to establish a connection by running "systemctl start wg-quick@config_name"

Actual results:
The wireguard connection cannot be established

Expected results:
The wireguard connection can be established

Additional info:

Created attachment 1961105 [details]
redacted wireguard config

Hi Stephan, 

Please reproduce the issue in permissive mode:

# setenforce 0

And collect AVC denials:
# ausearch -i -m avc,user_avc,selinux_err,user_selinux_err -ts today

Thank you

Hi,

did that, on a newly installed, fully updated CentOS Stream 9 machine. selinux-policy is now at version 38.1.12.
I will upload the output as an attachment.

Created attachment 1961807 [details]
collected AVC denials

The attached SELinux denials indicate that the following rules are missing in SELinux policy:

allow wireguard_t sysctl_net_t : dir { search };
allow wireguard_t sysctl_net_t : file { getattr open write };
allow iptables_t wireguard_t : fifo_file { open };

The attached file also contains 1 SELinux denial related to plymouthd which is already reported as:
 * https://bugzilla.redhat.com/show_bug.cgi?id=2184803

So, I tested it on CentOS Stream 9 now and it works. Looks to me like the bug is fixed. Nice work, thank you 👍

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 (selinux-policy 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-2023:6617