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Bug 1040631

Summary: restart of NetworkManager service produces AVC
Product: Red Hat Enterprise Linux 7 Reporter: Milos Malik <mmalik>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED CURRENTRELEASE QA Contact: Milos Malik <mmalik>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.0   
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: selinux-policy-3.12.1-110.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-13 12:56:32 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:

Description Milos Malik 2013-12-11 18:13:34 UTC 
Maybe the problem is anomalous label of the directory:
# matchpathcon /etc/NetworkManager/dispatcher.d/
/etc/NetworkManager/dispatcher.d	system_u:object_r:NetworkManager_initrc_exec_t:s0
#

Version-Release number of selected component (if applicable):
NetworkManager-0.9.9.0-27.git20131108.el7.x86_64
NetworkManager-glib-0.9.9.0-27.git20131108.el7.x86_64
selinux-policy-3.12.1-109.el7.noarch
selinux-policy-targeted-3.12.1-109.el7.noarch

How reproducible:
always

Steps to Reproduce:
# service NetworkManager restart
# ausearch -m avc -i -ts recent

Actual results:
----
type=PATH msg=audit(12/11/2013 12:53:59.308:433) : item=0 name=/etc/NetworkManager/dispatcher.d inode=864877 dev=fd:01 mode=dir,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:NetworkManager_initrc_exec_t:s0 objtype=NORMAL 
type=CWD msg=audit(12/11/2013 12:53:59.308:433) :  cwd=/ 
type=SYSCALL msg=audit(12/11/2013 12:53:59.308:433) : arch=x86_64 syscall=openat success=no exit=-13(Permission denied) a0=0xffffffffffffff9c a1=0x7fb9bc5f5b78 a2=O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC a3=0x0 items=1 ppid=1 pid=12504 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=nm-dispatcher.a exe=/usr/libexec/nm-dispatcher.action subj=system_u:system_r:NetworkManager_t:s0 key=(null) 
type=AVC msg=audit(12/11/2013 12:53:59.308:433) : avc:  denied  { read } for  pid=12504 comm=nm-dispatcher.a name=dispatcher.d dev="dm-1" ino=864877 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=system_u:object_r:NetworkManager_initrc_exec_t:s0 tclass=dir 
----

Expected results:
 * no AVCs
Comment 1 Miroslav Grepl 2013-12-11 21:49:21 UTC 
This is because of the latest SELinux NM change for nm-dispatcher.a.

Milos,
are you getting more AVC related to this change?
Comment 2 Milos Malik 2013-12-12 06:45:05 UTC 
These AVCs appeared in permissive mode, but nothing more:
----
type=PATH msg=audit(12/12/2013 07:43:41.477:518) : item=0 name=/etc/NetworkManager/dispatcher.d inode=8735489 dev=fd:03 mode=dir,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:NetworkManager_initrc_exec_t:s0 objtype=NORMAL 
type=CWD msg=audit(12/12/2013 07:43:41.477:518) :  cwd=/ 
type=SYSCALL msg=audit(12/12/2013 07:43:41.477:518) : arch=x86_64 syscall=openat success=yes exit=5 a0=0xffffffffffffff9c a1=0x7f23800ddb78 a2=O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC a3=0x0 items=1 ppid=1 pid=2380 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=nm-dispatcher.a exe=/usr/libexec/nm-dispatcher.action subj=system_u:system_r:NetworkManager_t:s0 key=(null) 
type=AVC msg=audit(12/12/2013 07:43:41.477:518) : avc:  denied  { open } for  pid=2380 comm=nm-dispatcher.a path=/etc/NetworkManager/dispatcher.d dev="vda3" ino=8735489 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=system_u:object_r:NetworkManager_initrc_exec_t:s0 tclass=dir 
type=AVC msg=audit(12/12/2013 07:43:41.477:518) : avc:  denied  { read } for  pid=2380 comm=nm-dispatcher.a name=dispatcher.d dev="vda3" ino=8735489 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=system_u:object_r:NetworkManager_initrc_exec_t:s0 tclass=dir 
----
Comment 3 Miroslav Grepl 2013-12-12 08:32:38 UTC 
I am also getting them.
Comment 5 Ludek Smid 2014-06-13 12:56:32 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.