Bug 592931 - SELinux is preventing /usr/local/bin/wine-preloader from loading /home/nocountryman/.wine/drive_c/windows/system32/gecko/1.0.0/wine_gecko/xul.dll which requires text relocation.
Summary: SELinux is preventing /usr/local/bin/wine-preloader from loading /home/nocoun...
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 13
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Daniel Walsh
QA Contact: Fedora Extras Quality Assurance
Whiteboard: setroubleshoot_trace_hash:b8552c1e1b6...
Depends On:
TreeView+ depends on / blocked
Reported: 2010-05-17 12:07 UTC by Gleb Sharkunov
Modified: 2010-09-06 10:40 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-05-17 12:39:52 UTC
Type: ---

Attachments (Terms of Use)

Description Gleb Sharkunov 2010-05-17 12:07:29 UTC

SELinux is preventing /usr/local/bin/wine-preloader from loading
which requires text relocation.

Detailed Description:

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

The Installer.exe application attempted to load
which requires text relocation. This is a potential security problem. Most
libraries do not need this permission. Libraries are sometimes coded incorrectly
and request this permission. The SELinux Memory Protection Tests
(http://people.redhat.com/drepper/selinux-mem.html) web page explains how to
remove this requirement. You can configure SELinux temporarily to allow
to use relocation as a workaround, until the library is fixed. Please file a bug

Allowing Access:

If you trust
to run correctly, you can change the file context to textrel_shlib_t. "chcon -t
You must also change the default file context files on the system in order to
preserve them even on a full relabel. "semanage fcontext -a -t textrel_shlib_t

Fix Command:

chcon -t textrel_shlib_t

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
Target Context                unconfined_u:object_r:user_home_t:s0
Target Objects                /home/nocountryman/.wine/drive_c/windows/system32/
                              gecko/1.0.0/wine_gecko/xul.dll [ file ]
Source                        rundll32.exe
Source Path                   /usr/local/bin/wine-preloader
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-10.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed) #1 SMP
                              Thu May 6 18:27:11 UTC 2010 i686 i686
Alert Count                   4
First Seen                    Mon 17 May 2010 01:46:54 PM EEST
Last Seen                     Mon 17 May 2010 02:34:24 PM EEST
Local ID                      dec5bb8b-1bb6-4853-8a63-38b40723956b
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1274096064.746:23655): avc:  denied  { execmod } for  pid=24217 comm="Installer.exe" path="/home/nocountryman/.wine/drive_c/windows/system32/gecko/1.0.0/wine_gecko/xul.dll" dev=sda3 ino=132559 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1274096064.746:23655): arch=40000003 syscall=125 success=yes exit=0 a0=ab00000 a1=1000 a2=5 a3=0 items=0 ppid=1 pid=24217 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="Installer.exe" exe="/usr/local/bin/wine-preloader" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)

Hash String generated from  allow_execmod,rundll32.exe,unconfined_t,user_home_t,file,execmod
audit2allow suggests:

#============= unconfined_t ==============
#!!!! This avc can be allowed using the boolean 'allow_execmod'

allow unconfined_t user_home_t:file execmod;

Comment 1 Daniel Walsh 2010-05-17 12:39:52 UTC
Please either use the chcon command in the alert or turn this check off.

# setsebool -P allow_execmod 1

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