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Bug 1595991 - SELinux is preventing systemd-network from 'create' accesses on the tun_socket Unknown.
Summary: SELinux is preventing systemd-network from 'create' accesses on the tun_socke...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 27
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Lukas Vrabec
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:40fe663424d2f94e5a42fd8dbbf...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-06-28 01:31 UTC by Dan Callaghan
Modified: 2018-08-08 15:34 UTC (History)
5 users (show)

Fixed In Version: selinux-policy-3.13.1-284.37.fc27
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-08-08 15:34:01 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Dan Callaghan 2018-06-28 01:31:10 UTC 
Description of problem:
systemd-networkd can be configured to create tun devices, for example:

$ cat /etc/systemd/network/tun5.netdev 
[NetDev]
Name=tun5
Kind=tun

[Tun]
SELinux is preventing systemd-network from 'create' accesses on the tun_socket Unknown.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that systemd-network should be allowed create access on the Unknown tun_socket by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'systemd-network' --raw | audit2allow -M my-systemdnetwork
# semodule -X 300 -i my-systemdnetwork.pp

Additional Information:
Source Context                system_u:system_r:systemd_networkd_t:s0
Target Context                system_u:system_r:systemd_networkd_t:s0
Target Objects                Unknown [ tun_socket ]
Source                        systemd-network
Source Path                   systemd-network
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-283.34.fc27.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 4.16.16-200.fc27.x86_64 #1 SMP Sun
                              Jun 17 03:06:00 UTC 2018 x86_64 x86_64
Alert Count                   1
First Seen                    2018-06-27 14:46:25 AEST
Last Seen                     2018-06-27 14:46:25 AEST
Local ID                      1a8d5b7f-e51f-40cb-9b7d-3eee2a88eba3

Raw Audit Messages
type=AVC msg=audit(1530074785.24:304): avc:  denied  { create } for  pid=9224 comm="systemd-network" scontext=system_u:system_r:systemd_networkd_t:s0 tcontext=system_u:system_r:systemd_networkd_t:s0 tclass=tun_socket permissive=1


Hash: systemd-network,systemd_networkd_t,systemd_networkd_t,tun_socket,create

Version-Release number of selected component:
selinux-policy-3.13.1-283.34.fc27.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.3
hashmarkername: setroubleshoot
kernel:         4.16.16-200.fc27.x86_64
type:           libreport
Comment 1 Fedora Update System 2018-07-27 09:22:52 UTC 
selinux-policy-3.13.1-284.37.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-4bb4de2d86
Comment 2 Fedora Update System 2018-07-27 15:39:09 UTC 
selinux-policy-3.13.1-284.37.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-4bb4de2d86
Comment 3 Fedora Update System 2018-08-08 15:34:01 UTC 
selinux-policy-3.13.1-284.37.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
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