Bug 623152 - SELinux is preventing /home/mhyp666/hiverise/hiverise.bin from loading /home/mhyp666/hiverise/libgc.so which requires text relocation.
SELinux is preventing /home/mhyp666/hiverise/hiverise.bin from loading /home/...
Status: CLOSED NOTABUG
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
13
i386 Linux
low Severity medium
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Assigned To: Daniel Walsh
Fedora Extras Quality Assurance
setroubleshoot_trace_hash:efb4bf7c6e1...
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Depends On:
Blocks:
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Reported: 2010-08-11 09:13 EDT by mhyp666
Modified: 2010-08-11 09:21 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed: 2010-08-11 09:21:58 EDT
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Regression: ---
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description mhyp666 2010-08-11 09:13:07 EDT
Summary:

SELinux is preventing /home/mhyp666/hiverise/hiverise.bin from loading
/home/mhyp666/hiverise/libgc.so which requires text relocation.

Detailed Description:

The hiverise.bin application attempted to load /home/mhyp666/hiverise/libgc.so
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
/home/mhyp666/hiverise/libgc.so to use relocation as a workaround, until the
library is fixed. Please file a bug report.

Allowing Access:

If you trust /home/mhyp666/hiverise/libgc.so to run correctly, you can change
the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/home/mhyp666/hiverise/libgc.so'" 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 '/home/mhyp666/hiverise/libgc.so'"

Fix Command:

chcon -t textrel_shlib_t '/home/mhyp666/hiverise/libgc.so'

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                unconfined_u:object_r:user_home_t:s0
Target Objects                /home/mhyp666/hiverise/libgc.so [ file ]
Source                        hiverise.bin
Source Path                   /home/mhyp666/hiverise/hiverise.bin
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-44.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed) 2.6.33.6-147.2.4.fc13.i686.PAE
                              #1 SMP Fri Jul 23 17:21:06 UTC 2010 i686 i686
Alert Count                   1
First Seen                    Thu 12 Aug 2010 04:14:26 PM AST
Last Seen                     Thu 12 Aug 2010 04:14:26 PM AST
Local ID                      9017d1bb-2c9d-4cc7-9a22-c4ed3fbe5399
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1281618866.636:85): avc:  denied  { execmod } for  pid=7393 comm="hiverise.bin" path="/home/mhyp666/hiverise/libgc.so" dev=sda1 ino=265418 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(1281618866.636:85): arch=40000003 syscall=125 success=no exit=-13 a0=210000 a1=24000 a2=5 a3=bfe40c90 items=0 ppid=7369 pid=7393 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="hiverise.bin" exe="/home/mhyp666/hiverise/hiverise.bin" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  allow_execmod,hiverise.bin,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 2010-08-11 09:21:58 EDT
Either use the chcon command mentioned in the alert or turn off the check altogether.

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