Bug 603920 - SELinux is preventing /usr/libexec/gnome-settings-daemon "getattr" access on /pub/graphics/WallPaper/NCC1701_STXI.jpg.
Summary: SELinux is preventing /usr/libexec/gnome-settings-daemon "getattr" access ...
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 13
Hardware: x86_64
OS: Linux
low
medium
Target Milestone: ---
Assignee: Daniel Walsh
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:5c057b2b011...
Keywords:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-06-14 21:14 UTC by Scott Castaline
Modified: 2010-06-16 16:06 UTC (History)
2 users (show)

(edit)
Clone Of:
(edit)
Last Closed: 2010-06-14 22:09:50 UTC


Attachments (Terms of Use)

Description Scott Castaline 2010-06-14 21:14:35 UTC
Summary:

SELinux is preventing /usr/libexec/gnome-settings-daemon "getattr" access on
/pub/graphics/WallPaper/NCC1701_STXI.jpg.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux denied access requested by gnome-settings-. It is not expected that this
access is required by gnome-settings- and this access may signal an intrusion
attempt. It is also possible that the specific version or configuration of the
application is causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context                system_u:object_r:default_t:s0
Target Objects                /pub/graphics/WallPaper/NCC1701_STXI.jpg [ file ]
Source                        gnome-settings-
Source Path                   /usr/libexec/gnome-settings-daemon
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           gnome-settings-daemon-2.30.1-6.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-23.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed) 2.6.33.5-112.fc13.x86_64
                              #1 SMP Thu May 27 02:28:31 UTC 2010 x86_64 x86_64
Alert Count                   1
First Seen                    Mon 14 Jun 2010 05:08:42 PM EDT
Last Seen                     Mon 14 Jun 2010 05:08:42 PM EDT
Local ID                      dbfd5187-7ad3-4a6f-b468-9ad73feaff31
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1276549722.982:11): avc:  denied  { getattr } for  pid=2438 comm="gnome-settings-" path="/pub/graphics/WallPaper/NCC1701_STXI.jpg" dev=dm-13 ino=130412 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:default_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1276549722.982:11): arch=c000003e syscall=6 success=yes exit=0 a0=1169bd0 a1=7fffd88a21b0 a2=7fffd88a21b0 a3=1 items=0 ppid=2435 pid=2438 auid=4294967295 uid=42 gid=474 euid=42 suid=42 fsuid=42 egid=474 sgid=474 fsgid=474 tty=(none) ses=4294967295 comm="gnome-settings-" exe="/usr/libexec/gnome-settings-daemon" subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  catchall,gnome-settings-,xdm_t,default_t,file,getattr
audit2allow suggests:

#============= xdm_t ==============
allow xdm_t default_t:file getattr;

Comment 1 Daniel Walsh 2010-06-14 22:09:50 UTC
You need to set a label on this directory, probably usr_t would work.

# semanage fcontext -a -t usr_t /pub(/.*)?'
# restorecon -R -v /pub

Comment 2 Scott Castaline 2010-06-15 03:17:50 UTC
Just gave those commands a try although I did modify them to:

# semanage fcontext -a -t usr_t /pub/graphics/wallpaper/*
# restorecon -R -v /pub/graphics/wallpaper/

I didnt notice any change in SELinux permissions and if you right click on the file in nautilus and access properties/permissions the SELinux one is default_t and clicking on the drop down usr_t does not exist even though if you check the properties of one of the jpgs in /usr/share/background/images show usr_t.
If I do your command exactly as above I get:

-bash: syntax error near unexpected token `('

Comment 3 Daniel Walsh 2010-06-16 15:52:28 UTC
# semanage fcontext -a -t usr_t '/pub(/.*)?'

Do it at /pub  So the entire directory gets labeled. Sorry about the missing '

Comment 4 Scott Castaline 2010-06-16 16:06:22 UTC
It seems to have stopped since I did the following:

1. Copied the file from /pub/graphics/WallPaper to /usr/share/backgrounds/images
2. Changed the copied ownership to root
3. Disabled the autostart of wallpapoza.

The result is that my desktop stays with the image I want and no more SELinux alerts, at least for that anymore.


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