Bug 882003 - SELinux is preventing /usr/sbin/NetworkManager from 'unlink' accesses on the file resolv.conf.
Summary: SELinux is preventing /usr/sbin/NetworkManager from 'unlink' accesses on the ...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 17
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:9a34f8dbc30b9ce5334111398a4...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-11-29 23:15 UTC by mdeggers
Modified: 2012-11-30 11:00 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2012-11-30 09:41:08 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)
File: type (9 bytes, text/plain)
2012-11-29 23:15 UTC, mdeggers
no flags Details
File: hashmarkername (14 bytes, text/plain)
2012-11-29 23:15 UTC, mdeggers
no flags Details

Description mdeggers 2012-11-29 23:15:24 UTC
Description of problem:
This system has primarily wireless only as its access (laptop). One network is currently marked as a system network (should come up when the system does). I get multiple SELinux alerts with this arrangement. Most can be solved by doing a restorecon -v /etc/resolv.conf. This one requires (according to the SE Troubleshooter) a specific exception.

I'm a bit concerned about this, in that it's unlinking /etc/resolv.conf.


Additional info:
libreport version: 2.0.18
kernel:         3.6.7-4.fc17.x86_64

description:
:SELinux is preventing /usr/sbin/NetworkManager from 'unlink' accesses on the file resolv.conf.
:
:*****  Plugin catchall (100. confidence) suggests  ***************************
:
:If you believe that NetworkManager should be allowed unlink 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 NetworkManager /var/log/audit/audit.log | audit2allow -M mypol
:# semodule -i mypol.pp
:
:Additional Information:
:Source Context                system_u:system_r:NetworkManager_t:s0
:Target Context                unconfined_u:object_r:pppd_etc_t:s0
:Target Objects                resolv.conf [ file ]
:Source                        NetworkManager
:Source Path                   /usr/sbin/NetworkManager
:Port                          <Unknown>
:Host                          (removed)
:Source RPM Packages           NetworkManager-0.9.6.4-3.fc17.x86_64
:Target RPM Packages           
:Policy RPM                    selinux-policy-3.10.0-161.fc17.noarch
:Selinux Enabled               True
:Policy Type                   targeted
:Enforcing Mode                Permissive
:Host Name                     (removed)
:Platform                      Linux (removed) 3.6.7-4.fc17.x86_64 #1 SMP Tue Nov
:                              20 19:40:01 UTC 2012 x86_64 x86_64
:Alert Count                   1
:First Seen                    2012-11-29 15:04:13 PST
:Last Seen                     2012-11-29 15:04:13 PST
:Local ID                      2538692e-f33f-4bf7-abbd-721cfe8e867b
:
:Raw Audit Messages
:type=AVC msg=audit(1354230253.93:96): avc:  denied  { unlink } for  pid=728 comm="NetworkManager" name="resolv.conf" dev="dm-1" ino=1578765 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=unconfined_u:object_r:pppd_etc_t:s0 tclass=file
:
:
:type=SYSCALL msg=audit(1354230253.93:96): arch=x86_64 syscall=rename success=yes exit=0 a0=bd5ba0 a1=c28080 a2=32c1bb0778 a3=4af962 items=0 ppid=1 pid=728 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=NetworkManager exe=/usr/sbin/NetworkManager subj=system_u:system_r:NetworkManager_t:s0 key=(null)
:
:Hash: NetworkManager,NetworkManager_t,pppd_etc_t,file,unlink
:
:audit2allow
:
:#============= NetworkManager_t ==============
:allow NetworkManager_t pppd_etc_t:file unlink;
:
:audit2allow -R
:
:#============= NetworkManager_t ==============
:allow NetworkManager_t pppd_etc_t:file unlink;
:

Comment 1 mdeggers 2012-11-29 23:15:30 UTC
Created attachment 654643 [details]
File: type

Comment 2 mdeggers 2012-11-29 23:15:31 UTC
Created attachment 654644 [details]
File: hashmarkername

Comment 3 Miroslav Grepl 2012-11-30 09:41:08 UTC
Did you create resolv.conf in the /etc/ppp directory and moved it to /etc?

# restorecon -v /etc/resolv.conf

will fix it.

Comment 4 mdeggers 2012-11-30 11:00:53 UTC
I didn't, but possibly when I installed SonicWall netExtender (VPN for SonicWall) this occurred.

I've already done the restorecon -v /etc/resolv.conf and I will track SELinux alerts (running in permissive at the moment). If there are further alerts long these lines I will open a new bug.

Thanks for the response.
/mde/


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