Bug 903256 - SELinux is preventing /usr/bin/totem-video-thumbnailer from 'execute' accesses on the chr_file /dev/zero.
Summary: SELinux is preventing /usr/bin/totem-video-thumbnailer from 'execute' accesse...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 18
Hardware: i686
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:a2b0acf13af0d27b6337cb14ff1...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-01-23 15:23 UTC by blitzter
Modified: 2013-06-08 10:29 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-02-08 02:23:01 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description blitzter 2013-01-23 15:23:58 UTC
Description of problem:
opening a ntfs drive with multiple video files(multiple format too) in file browser
SELinux is preventing /usr/bin/totem-video-thumbnailer from 'execute' accesses on the chr_file /dev/zero.

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

If you believe that totem-video-thumbnailer should be allowed execute access on the zero chr_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 totem-video-thu /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Context                system_u:object_r:zero_device_t:s0
Target Objects                /dev/zero [ chr_file ]
Source                        totem-video-thu
Source Path                   /usr/bin/totem-video-thumbnailer
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           totem-3.6.3-1.fc18.i686
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-67.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 3.7.2-204.fc18.i686.PAE #1 SMP Wed
                              Jan 16 16:31:26 UTC 2013 i686 i686
Alert Count                   1
First Seen                    2013-01-23 09:56:02 IST
Last Seen                     2013-01-23 09:56:02 IST
Local ID                      b178f46d-5255-4b79-81f9-76f9bb5bec22

Raw Audit Messages
type=AVC msg=audit(1358915162.378:394): avc:  denied  { execute } for  pid=7231 comm="totem-video-thu" path="/dev/zero" dev="devtmpfs" ino=22 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=system_u:object_r:zero_device_t:s0 tclass=chr_file


type=SYSCALL msg=audit(1358915162.378:394): arch=i386 syscall=mmap2 success=yes exit=-1216552960 a0=0 a1=2000 a2=7 a3=2 items=0 ppid=2337 pid=7231 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 ses=3 tty=(none) comm=totem-video-thu exe=/usr/bin/totem-video-thumbnailer subj=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 key=(null)

Hash: totem-video-thu,thumb_t,zero_device_t,chr_file,execute

audit2allow

#============= thumb_t ==============
allow thumb_t zero_device_t:chr_file execute;

audit2allow -R

#============= thumb_t ==============
allow thumb_t zero_device_t:chr_file execute;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.7.2-204.fc18.i686.PAE
type:           libreport

Comment 1 Miroslav Grepl 2013-01-24 09:10:26 UTC
Fixed in selinux-policy-3.11.1-74.fc18

Comment 2 Fedora Update System 2013-01-31 13:17:59 UTC
selinux-policy-3.11.1-74.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/selinux-policy-3.11.1-74.fc18

Comment 3 Fedora Update System 2013-02-01 16:38:32 UTC
Package selinux-policy-3.11.1-74.fc18:
* should fix your issue,
* was pushed to the Fedora 18 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.11.1-74.fc18'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2013-1693/selinux-policy-3.11.1-74.fc18
then log in and leave karma (feedback).

Comment 4 Fedora Update System 2013-02-08 02:23:03 UTC
selinux-policy-3.11.1-74.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Jamie 2013-05-27 22:54:08 UTC
 This bug was not fixed with the current release. Today is 5-27-2013 and I just submitted a new report. was using dropbox and /dev/zero was denied access from the totem-thumbnailer. Today I have had much trouble with this totem thumbnailer. I just updated from the updates repository last night, and then the kernel updates from same this morning. It was after that I have this problem. Was not using nautillus. I was using the dropbox default "files 2.0.3" file manager. I do not log in as root ever, only in terminal to do root tasks..
 
 Thanks guys [ and gals :) ]
-Jamie in Boston

Comment 6 Daniel Walsh 2013-05-28 17:10:29 UTC
Please attach your latest avc messages.

Comment 7 Jamie 2013-06-07 00:48:39 UTC
[root@jfm james]# ausearch -m avc -ts recent
<no matches>

 Is this posible?

 Sorry, I am new to this SELinux 

-J

Comment 8 Jamie 2013-06-07 00:52:19 UTC
Im still having this problem. This time I wasnt even using any file managers that thumbnail..

SELinux is preventing /usr/bin/totem-video-thumbnailer from execute access on the chr_file /dev/zero.

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

If you believe that totem-video-thumbnailer should be allowed execute access on the zero chr_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 totem-video-thu /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Context                system_u:object_r:zero_device_t:s0
Target Objects                /dev/zero [ chr_file ]
Source                        totem-video-thu
Source Path                   /usr/bin/totem-video-thumbnailer
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           totem-3.6.3-2.fc18.i686
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-96.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux jfm 3.9.4-200.fc18.i686.PAE #1 SMP Fri May
                              24 20:24:58 UTC 2013 i686 i686
Alert Count                   6
First Seen                    2013-05-27 18:37:39 EDT
Last Seen                     2013-05-27 18:38:25 EDT
Local ID                      f587cd2a-4375-4e19-8116-7aa091681243

Raw Audit Messages
type=AVC msg=audit(1369694305.513:634): avc:  denied  { execute } for  pid=5165 comm="totem-video-thu" path="/dev/zero" dev="devtmpfs" ino=4884 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=system_u:object_r:zero_device_t:s0 tclass=chr_file


type=SYSCALL msg=audit(1369694305.513:634): arch=i386 syscall=mmap2 success=no exit=EACCES a0=0 a1=2000 a2=7 a3=2 items=0 ppid=4978 pid=5165 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 ses=1 tty=(none) comm=totem-video-thu exe=/usr/bin/totem-video-thumbnailer subj=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 key=(null)

Hash: totem-video-thu,thumb_t,zero_device_t,chr_file,execute

audit2allow

#============= thumb_t ==============
#!!!! This avc is allowed in the current policy

allow thumb_t zero_device_t:chr_file execute;

audit2allow -R
require {
	type thumb_t;
}

#============= thumb_t ==============
dev_rwx_zero(thumb_t)

Comment 9 Daniel Walsh 2013-06-08 10:29:12 UTC
Last Seen                     2013-05-27 18:38:25 EDT

This says that it has not happened since 5-27


#============= thumb_t ==============
#!!!! This avc is allowed in the current policy

allow thumb_t zero_device_t:chr_file execute;

Meanig you have the fix.


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