Bug 1227128

Summary: SELinux is preventing /usr/lib/systemd/systemd-networkd from name_bind access on the udp_socket port 68
Product: [Fedora] Fedora Reporter: jjq
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 22CC: dominick.grift, dwalsh, lvrabec, mgrepl, plautrba
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard:
Fixed In Version: selinux-policy-3.13.1-128.1.fc22 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-06-11 18:38:04 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 jjq 2015-06-02 00:39:50 UTC
Description of problem:
Using systemd-networkd to configure a network interface using dhcp and get this message when dhcp client attempts to get an ip address

Version-Release number of selected component (if applicable):
selinux-policy-3.13.1-126.fc22.noarch

How reproducible:
Very

Steps to Reproduce:
1.Start or re-awaken computer from suspend
2.
3.

Actual results:


Expected results:
SELinux should allow this

Additional info:

Additional Information:
Source Context                system_u:system_r:systemd_networkd_t:s0
Target Context                system_u:object_r:dhcpc_port_t:s0
Target Objects                port 68 [ udp_socket ]
Source                        systemd-network
Source Path                   /usr/lib/systemd/systemd-networkd
Port                          68
Host                          plato.bluerun.us
Source RPM Packages           systemd-219-15.fc22.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-126.fc22.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.0.4-301.fc22.x86_64 #1
                              SMP Thu May 21 13:10:33 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-06-01 19:18:08 EDT
Last Seen                     2015-06-01 19:18:08 EDT
Local ID                      940713c6-1982-4ef4-800e-371f55b22fe6

Raw Audit Messages
type=AVC msg=audit(1433200688.250:249): avc:  denied  { name_bind } for  pid=877 comm="systemd-network" src=68 scontext=system_u:system_r:systemd_networkd_t:s0 tcontext=system_u:object_r:dhcpc_port_t:s0 tclass=udp_socket permissive=1


type=AVC msg=audit(1433200688.250:249): avc:  denied  { node_bind } for  pid=877 comm="systemd-network" saddr=192.168.201.2 src=68 scontext=system_u:system_r:systemd_networkd_t:s0 tcontext=system_u:object_r:node_t:s0 tclass=udp_socket permissive=1


type=AVC msg=audit(1433200688.250:249): avc:  denied  { net_bind_service } for  pid=877 comm="systemd-network" capability=10  scontext=system_u:system_r:systemd_networkd_t:s0 tcontext=system_u:system_r:systemd_networkd_t:s0 tclass=capability permissive=1


type=SYSCALL msg=audit(1433200688.250:249): arch=x86_64 syscall=bind success=yes exit=0 a0=b a1=7ffe83bb68f0 a2=10 a3=7ffe83bb68ec items=0 ppid=1 pid=877 auid=4294967295 uid=481 gid=480 euid=481 suid=481 fsuid=481 egid=480 sgid=480 fsgid=480 tty=(none) ses=4294967295 comm=systemd-network exe=/usr/lib/systemd/systemd-networkd subj=system_u:system_r:systemd_networkd_t:s0 key=(null)

Hash: systemd-network,systemd_networkd_t,dhcpc_port_t,udp_socket,name_bind

Comment 1 Miroslav Grepl 2015-06-02 14:54:04 UTC
commit 31befb6e5f507b6d9d1a42f142ad4f630518c482
Author: Miroslav Grepl <mgrepl>
Date:   Mon Jun 1 15:13:41 2015 +0200

    Allow systemd-networkd to bind dhcpc ports if DHCP=yes in *.network conf file.

Comment 2 Fedora Update System 2015-06-09 14:39:34 UTC
selinux-policy-3.13.1-128.1.fc22 has been submitted as an update for Fedora 22.
https://admin.fedoraproject.org/updates/selinux-policy-3.13.1-128.1.fc22

Comment 3 Fedora Update System 2015-06-10 19:11:19 UTC
Package selinux-policy-3.13.1-128.1.fc22:
* should fix your issue,
* was pushed to the Fedora 22 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.13.1-128.1.fc22'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2015-9714/selinux-policy-3.13.1-128.1.fc22
then log in and leave karma (feedback).

Comment 4 Fedora Update System 2015-06-11 18:38:04 UTC
selinux-policy-3.13.1-128.1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.