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Bug 1188888 - SELinux is preventing chronyd from 'read' accesses on the file resolv.conf.
Summary: SELinux is preventing chronyd from 'read' accesses on the file resolv.conf.
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: rawhide
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Lukas Vrabec
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:e8b6f3862300de5e59888580e73...
Depends On:
Blocks: F22FinalBlocker
TreeView+ depends on / blocked
 
Reported: 2015-02-03 23:08 UTC by Adam Williamson
Modified: 2015-02-09 17:40 UTC (History)
8 users (show)

Fixed In Version: selinux-policy-3.13.1-108.fc22
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-02-09 17:40:43 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Adam Williamson 2015-02-03 23:08:26 UTC 
Description of problem:
Happens of boot of a Rawhide Workstation live image with selinux-policy-3.13.1-107.fc22.
SELinux is preventing chronyd from 'read' accesses on the file resolv.conf.

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

If you believe that chronyd should be allowed read access on the resolv.conf 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 chronyd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:chronyd_t:s0
Target Context                system_u:object_r:NetworkManager_var_run_t:s0
Target Objects                resolv.conf [ file ]
Source                        chronyd
Source Path                   chronyd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-107.fc22.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 3.19.0-0.rc7.git0.1.fc22.x86_64 #1
                              SMP Mon Feb 2 15:14:19 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-02-03 17:57:04 EST
Last Seen                     2015-02-03 17:57:04 EST
Local ID                      5505d495-0668-4216-afe2-d23e35d2d26f

Raw Audit Messages
type=AVC msg=audit(1423004224.24:447): avc:  denied  { read } for  pid=848 comm="chronyd" name="resolv.conf" dev="tmpfs" ino=20476 scontext=system_u:system_r:chronyd_t:s0 tcontext=system_u:object_r:NetworkManager_var_run_t:s0 tclass=file permissive=1


Hash: chronyd,chronyd_t,NetworkManager_var_run_t,file,read

Version-Release number of selected component:
selinux-policy-3.13.1-107.fc22.noarch

Additional info:
reporter:       libreport-2.3.0
hashmarkername: setroubleshoot
kernel:         3.19.0-0.rc7.git0.1.fc22.x86_64
type:           libreport
Comment 1 Adam Williamson 2015-02-03 23:09:06 UTC 
Proposing as a Final blocker: "There must be no SELinux denial notifications or crash notifications on boot of or during installation from a release-blocking live image, or at first login after a default install of a release-blocking desktop." - https://fedoraproject.org/wiki/Fedora_22_Final_Release_Criteria#SELinux_and_crash_notifications .
Comment 2 Adam Williamson 2015-02-03 23:09:52 UTC 
There's a similar denial for 'open':

Additional Information:
Source Context                system_u:system_r:chronyd_t:s0
Target Context                system_u:object_r:NetworkManager_var_run_t:s0
Target Objects                /run/NetworkManager/resolv.conf [ file ]
Source                        chronyd
Source Path                   chronyd
Port                          <Unknown>
Host                          localhost
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-107.fc22.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     localhost
Platform                      Linux localhost 3.19.0-0.rc7.git0.1.fc22.x86_64 #1
                              SMP Mon Feb 2 15:14:19 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-02-03 17:57:04 EST
Last Seen                     2015-02-03 17:57:04 EST
Local ID                      031b40cb-56ae-43ae-9a77-c095b974d2d4

Raw Audit Messages
type=AVC msg=audit(1423004224.24:448): avc:  denied  { open } for  pid=848 comm="chronyd" path="/run/NetworkManager/resolv.conf" dev="tmpfs" ino=20476 scontext=system_u:system_r:chronyd_t:s0 tcontext=system_u:object_r:NetworkManager_var_run_t:s0 tclass=file permissive=1
Comment 3 Adam Williamson 2015-02-03 23:10:32 UTC 
And one for 'getattr':

Additional Information:
Source Context                system_u:system_r:chronyd_t:s0
Target Context                system_u:object_r:NetworkManager_var_run_t:s0
Target Objects                /run/NetworkManager/resolv.conf [ file ]
Source                        chronyd
Source Path                   chronyd
Port                          <Unknown>
Host                          localhost
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-107.fc22.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     localhost
Platform                      Linux localhost 3.19.0-0.rc7.git0.1.fc22.x86_64 #1
                              SMP Mon Feb 2 15:14:19 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-02-03 17:57:04 EST
Last Seen                     2015-02-03 17:57:04 EST
Local ID                      36ec33fe-3d43-4549-9eb9-4712273531d2

Raw Audit Messages
type=AVC msg=audit(1423004224.24:449): avc:  denied  { getattr } for  pid=848 comm="chronyd" path="/run/NetworkManager/resolv.conf" dev="tmpfs" ino=20476 scontext=system_u:system_r:chronyd_t:s0 tcontext=system_u:object_r:NetworkManager_var_run_t:s0 tclass=file permissive=1
Comment 4 lejeczek 2015-02-04 12:22:59 UTC 
Description of problem:
networkManager's dispatcher is supposed to run a script that changes /etc/resolv.conf & /etc/hosts

Version-Release number of selected component:
selinux-policy-3.13.1-107.fc22.noarch

Additional info:
reporter:       libreport-2.3.0
hashmarkername: setroubleshoot
kernel:         3.19.0-0.rc7.git0.1.fc22.x86_64
type:           libreport
Comment 5 Lukas Vrabec 2015-02-04 13:30:37 UTC 
commit cc28df82cdec572ca816f914eea5006aa5c2e7a6
Author: Lukas Vrabec <lvrabec>
Date:   Mon Feb 2 18:27:17 2015 +0100

    Fix labels, improve sysnet_manage_config interface.

commit 55ea073f65f979793a0c47d78cc82ffeb8401f1a
Author: Lukas Vrabec <lvrabec>
Date:   Tue Feb 3 19:01:50 2015 +0100

    Label /var/run/NetworkManager/resolv.conf.tmp as net_conf_t.
Comment 6 Mike Ruckman 2015-02-07 05:31:38 UTC 
I don't see this any more with the recent selinux-policy-3.13.1-110.fc22.noarch build.
Comment 7 lejeczek 2015-02-07 12:58:28 UTC 
it seems to be fine, my problem though might have been caused by unconfined label on the script. Thanks.
Comment 8 Adam Williamson 2015-02-09 17:40:43 UTC 
Works fine with 110 for me too.
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