Bug 449678

Summary: SELinux prevented umount from mounting on the file or directory
Product: [Fedora] Fedora Reporter: pigetak178
Component: halAssignee: David Zeuthen <davidz>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 9CC: jkubin, mclasen, pertusus, thras
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-06-04 17:50:21 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description pigetak178 2008-06-03 01:11:04 UTC
Description of problem:

Inserted thumb drive.  Then unmounted using Gnome right-click menu to "unmount".
Selinux alert box popped up.  Text is:


Summary:

SELinux prevented umount from mounting on the file or directory
"/media/.hal-mtab-lock" (type "mnt_t").

Detailed Description:

SELinux prevented umount from mounting a filesystem on the file or directory
"/media/.hal-mtab-lock" of type "mnt_t". By default SELinux limits the mounting
of filesystems to only some files or directories (those with types that have the
mountpoint attribute). The type "mnt_t" does not have this attribute. You can
either relabel the file or directory or set the boolean "allow_mount_anyfile" to
true to allow mounting on any file or directory.

Allowing Access:

Changing the "allow_mount_anyfile" boolean to true will allow this access:
"setsebool -P allow_mount_anyfile=1."

Fix Command:

setsebool -P allow_mount_anyfile=1

Additional Information:

Source Context                system_u:system_r:mount_t:s0
Target Context                system_u:object_r:mnt_t:s0
Target Objects                /media/.hal-mtab-lock [ file ]
Source                        umount
Source Path                   /bin/umount
Port                          <Unknown>
Host                          localhost.localdomain
Source RPM Packages           util-linux-ng-2.13.1-6.fc9
Target RPM Packages
Policy RPM                    selinux-policy-3.3.1-55.fc9
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   allow_mount_anyfile
Host Name                     localhost.localdomain
Platform                      Linux localhost.localdomain 2.6.25.3-18.fc9.i686
                              #1 SMP Tue May 13 05:38:53 EDT 2008 i686 i686
Alert Count                   2
First Seen                    Mon 02 Jun 2008 09:04:06 PM EDT
Last Seen                     Mon 02 Jun 2008 09:05:22 PM EDT
Local ID                      db2b7bc8-f9d8-483d-81fb-211b2aef6c1d
Line Numbers

Raw Audit Messages

host=localhost.localdomain type=AVC msg=audit(1212455122.644:57): avc:  denied 
{ read write } for  pid=3475 comm="umount" path="/media/.hal-mtab-lock" dev=dm-0
ino=8314883 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:mnt_t:s0 tclass=file

host=localhost.localdomain type=SYSCALL msg=audit(1212455122.644:57):
arch=40000003 syscall=11 success=yes exit=0 a0=804b14d a1=bfb486e0 a2=bfb48c5c
a3=804b14d items=0 ppid=3474 pid=3475 auid=4294967295 uid=0 gid=0 euid=0 suid=0
fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="umount"
exe="/bin/umount" subj=system_u:system_r:mount_t:s0 key=(null)





Version-Release number of selected component (if applicable):

Full fresh install of F9, plus all updates applied as of this date.

How reproducible:

Totally. Every time I insert and then unmount it.

Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:

Comment 1 pigetak178 2008-06-03 01:14:15 UTC
Follow up:

I did try: setsebool -P allow_mount_anyfile=1

But that didn't fix it.  Same error message pops up in the setroubleshooter
browswer.

Comment 2 Joel Eidsath 2008-06-04 15:28:34 UTC
I have this problem when I try to umount my 8G Lexar thumbdrive, and so do users
with bug 449873 and bug 449719 apparently.

The problem occurs with both a manual 'umount /media/Lexar' and right-clicking
to umount through Gnome's file browser. 

Judging from the text of the error, SELinux seems to think that umount is trying
to mount a directory on .hal-mtab-lock.

Comment 3 Daniel Walsh 2008-06-04 17:50:21 UTC

*** This bug has been marked as a duplicate of 447195 ***