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Bug 1630347

Summary: SELinux is preventing /usr/bin/qemu-ga from read access on the file dev.
Product: Red Hat Enterprise Linux 7 Reporter: Jiri Koten <jkoten>
Component: selinux-policyAssignee: Lukas Vrabec <lvrabec>
Status: CLOSED ERRATA QA Contact: Milos Malik <mmalik>
Severity: high Docs Contact:
Priority: high    
Version: 7.6CC: agajania, lvrabec, mkeir, mmalik, obockows, plautrba, rainer.traut, redhat-bugzilla, rik.theys, robert.scheck, ssekidde, vmojzis, wattersm, wdh, zpytela
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-08-06 12:52:32 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:
Bug Depends On:    
Bug Blocks: 1653106    
Attachments:
Description Flags
ovirt guest agent policy none

Description Jiri Koten 2018-09-18 12:44:19 UTC
SELinux is preventing /usr/bin/qemu-ga from read access on the file dev.

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

If you believe that qemu-ga should be allowed read access on the dev 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:
# ausearch -c 'qemu-ga' --raw | audit2allow -M my-qemuga
# semodule -i my-qemuga.pp

Additional Information:
Source Context                system_u:system_r:virt_qemu_ga_t:s0
Target Context                system_u:object_r:proc_net_t:s0
Target Objects                dev [ file ]
Source                        qemu-ga
Source Path                   /usr/bin/qemu-ga
Port                          <Unknown>
Host                          rhel7
Source RPM Packages           qemu-guest-agent-2.12.0-2.el7.x86_64
Target RPM Packages           filesystem-3.2-25.el7.x86_64
Policy RPM                    selinux-policy-3.13.1-224.el7.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     rhel7
Platform                      Linux rhel7 3.10.0-693.21.1.el7.x86_64 #1 SMP Fri
                              Feb 23 18:54:16 UTC 2018 x86_64 x86_64
Alert Count                   10975
First Seen                    2018-09-11 05:24:02 EDT
Last Seen                     2018-09-18 08:39:03 EDT
Local ID                      c7eeecfa-1699-4f35-a7ab-1816855ad8a0

Raw Audit Messages
type=AVC msg=audit(1537274343.807:38634): avc:  denied  { read } for  pid=1910 comm="qemu-ga" name="dev" dev="proc" ino=4026531976 scontext=system_u:system_r:virt_qemu_ga_t:s0 tcontext=system_u:object_r:proc_net_t:s0 tclass=file


type=SYSCALL msg=audit(1537274343.807:38634): arch=x86_64 syscall=open success=no exit=EACCES a0=55e0bc6bedca a1=0 a2=1b6 a3=24 items=0 ppid=1 pid=1910 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=qemu-ga exe=/usr/bin/qemu-ga subj=system_u:system_r:virt_qemu_ga_t:s0 key=(null)

Hash: qemu-ga,virt_qemu_ga_t,proc_net_t,file,read

Comment 5 Lukas Vrabec 2019-01-31 15:30:53 UTC
*** Bug 1671435 has been marked as a duplicate of this bug. ***

Comment 6 Robert Scheck 2019-01-31 15:33:34 UTC
As per ticket 02306650 at the Red Hat customer portal, I also requested a 7.6.z update.

Comment 9 Michael Watters 2019-02-15 16:21:24 UTC
I was able to fix this using a custom SELinux module.  Policy file is attached.

Comment 10 Michael Watters 2019-02-15 16:24:41 UTC
Created attachment 1535253 [details]
ovirt guest agent policy

This policy allows the ovirt guest agent to run without AVC denials.

Comment 16 errata-xmlrpc 2019-08-06 12:52:32 UTC
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, 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-2019:2127