Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1140426 - SELinux is preventing /usr/sbin/openvpn from read, write access on the chr_file tun.
Summary: SELinux is preventing /usr/sbin/openvpn from read, write access on the chr_fi...
Keywords:
Status: CLOSED DUPLICATE of bug 1139646
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 21
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:d7bef0e9428267ae982197888f6...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-09-10 23:58 UTC by Adam Williamson
Modified: 2014-09-15 08:54 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-09-15 08:54:14 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1139646 0 unspecified CLOSED SELinux is preventing /usr/bin/qemu-system-x86_64 from 'ioctl' accesses on the chr_file /dev/net/tun. 2021-02-22 00:41:40 UTC

Internal Links: 1139646

Description Adam Williamson 2014-09-10 23:58:03 UTC 
Description of problem:
Happens when I try to log in to the Red Hat VPN using OpenVPN via NetworkManager.
SELinux is preventing /usr/sbin/openvpn from read, write access on the chr_file tun.

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

If you believe that openvpn should be allowed read write access on the tun chr_file 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:
# grep openvpn /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:openvpn_t:s0
Target Context                system_u:object_r:svirt_image_t:s0:c151,c840
Target Objects                tun [ chr_file ]
Source                        openvpn
Source Path                   /usr/sbin/openvpn
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           openvpn-2.3.4-4.fc21.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-79.fc21.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.17.0-0.rc3.git2.2.fc22.1.x86_64
                              #1 SMP Thu Sep 4 16:43:36 UTC 2014 x86_64 x86_64
Alert Count                   1
First Seen                    2014-09-10 16:56:42 PDT
Last Seen                     2014-09-10 16:56:42 PDT
Local ID                      129c107b-ff42-4c7e-8fe2-9e60ff0a3d02

Raw Audit Messages
type=AVC msg=audit(1410393402.364:7777): avc:  denied  { read write } for  pid=21265 comm="openvpn" name="tun" dev="devtmpfs" ino=13429 scontext=system_u:system_r:openvpn_t:s0 tcontext=system_u:object_r:svirt_image_t:s0:c151,c840 tclass=chr_file permissive=0


type=SYSCALL msg=audit(1410393402.364:7777): arch=x86_64 syscall=open success=no exit=EACCES a0=7f823973efdd a1=2 a2=0 a3=0 items=0 ppid=21250 pid=21265 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=openvpn exe=/usr/sbin/openvpn subj=system_u:system_r:openvpn_t:s0 key=(null)

Hash: openvpn,openvpn_t,svirt_image_t,chr_file,read,write

Version-Release number of selected component:
selinux-policy-3.13.1-79.fc21.noarch

Additional info:
reporter:       libreport-2.2.3
hashmarkername: setroubleshoot
kernel:         3.17.0-0.rc3.git2.2.fc22.1.x86_64
type:           libreport
Comment 1 Adam Williamson 2014-09-11 00:28:56 UTC 
Oh, I see. This is fall-out from https://bugzilla.redhat.com/show_bug.cgi?id=1139646 , I think, which gave /dev/net/tun the svirt_image_t type.
Comment 2 Mike Ruckman 2014-09-11 00:51:13 UTC 
I've confirmed this locally as well.

Workaround is the following:
# grep openvpn /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp
Comment 3 Robbie Harwood 2014-09-12 20:00:57 UTC 
This is also preventing /usr/sbin/vpnc from doing similarly:

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

If you believe that vpnc should be allowed read access on the tun chr_file 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:
# grep vpnc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:vpnc_t:s0
Target Context                system_u:object_r:svirt_image_t:s0:c706,c928
Target Objects                /dev/net/tun [ chr_file ]
Source                        vpnc
Source Path                   /usr/sbin/vpnc
Port                          <Unknown>
Host                          thriss
Source RPM Packages           vpnc-0.5.3-23.svn457.fc22.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-81.fc22.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     thriss
Platform                      Linux thriss 3.17.0-0.rc4.git3.1.fc22.x86_64 #1
                              SMP Thu Sep 11 13:17:37 UTC 2014 x86_64 x86_64
Alert Count                   56
First Seen                    2014-09-12 13:22:39 EDT
Last Seen                     2014-09-12 16:00:01 EDT
Local ID                      f5142b3c-aebd-485a-9c63-3ccdc0c2f584

Raw Audit Messages
type=AVC msg=audit(1410552001.433:828): avc:  denied  { read } for  pid=2234 comm="vpnc" path="/dev/net/tun" dev="devtmpfs" ino=14367 scontext=system_u:system_r:vpnc_t:s0 tcontext=system_u:object_r:svirt_image_t:s0:c706,c928 tclass=chr_file permissive=1


type=SYSCALL msg=audit(1410552001.433:828): arch=x86_64 syscall=read success=yes exit=168 a0=5 a1=7f85fec78708 a2=1000 a3=0 items=0 ppid=2053 pid=2234 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=vpnc exe=/usr/sbin/vpnc subj=system_u:system_r:vpnc_t:s0 key=(null)

Hash: vpnc,vpnc_t,svirt_image_t,chr_file,read
Comment 4 Miroslav Grepl 2014-09-15 08:54:14 UTC 

*** This bug has been marked as a duplicate of bug 1139646 ***
Note You need to log in before you can comment on or make changes to this bug.