wine preloader? being denied by selinux

[Antonio Olivares]

Dear selinux experts,

I have a sealert for running a windows program under wine.  There had been no problems on a Fedora 13 x86_64 machine till I installed this program.  I have not done anything yet.  The program runs, but I am hesitant to do anything; therefore I ask for your guidance as to what should I do?

Here's the alert:


Summary:

SELinux has prevented wine from performing an unsafe memory operation.

Detailed Description:

SELinux denied an operation requested by wine-preloader, a program used to run
Windows applications under Linux. This program is known to use an unsafe
operation on system memory but so are a number of malware/exploit programs which
masquerade as wine. If you were attempting to run a Windows program your only
choices are to allow this operation and reduce your system security against such
malware or to refrain from running Windows applications under Linux. If you were
not attempting to run a Windows application this indicates you are likely being
attacked by some for of malware or program trying to exploit your system for
nefarious purposes. Please refer to
http://wiki.winehq.org/PreloaderPageZeroProblem Which outlines the other
problems wine encounters due to its unsafe use of memory and solutions to those
problems.

Allowing Access:

If you decide to continue to run the program in question you will need to allow
this operation. This can be done on the command line by executing: # setsebool
-P mmap_low_allowed 1

Fix Command:

/usr/sbin/setsebool -P mmap_low_allowed 1

Additional Information:

Source Context                unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023
Target Context                unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023
Target Objects                None [ memprotect ]
Source                        wine-preloader
Source Path                   /usr/bin/wine-preloader
Port                          <Unknown>
Host                          n6355-50168
Source RPM Packages           wine-core-1.2.0-2.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-47.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   wine
Host Name                     n6355-50168
Platform                      Linux n6355-50168 2.6.33.8-149.fc13.x86_64 #1 SMP
                              Tue Aug 17 22:53:15 UTC 2010 x86_64 x86_64
Alert Count                   10
First Seen                    Fri 27 Aug 2010 11:45:10 AM CDT
Last Seen                     Wed 01 Sep 2010 09:32:26 AM CDT
Local ID                      ab7d4dae-5686-4d47-ab3b-4ea134844ade
Line Numbers                  

Raw Audit Messages            

node=n6355-50168 type=AVC msg=audit(1283351546.640:36): avc:  denied  { mmap_zero } for  pid=4115 comm="wine-preloader" scontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tclass=memprotect

node=n6355-50168 type=SYSCALL msg=audit(1283351546.640:36): arch=40000003 syscall=90 success=no exit=-13 a0=ffe4a850 a1=0 a2=ffe4a850 a3=5a items=0 ppid=4088 pid=4115 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="wine-preloader" exe="/usr/bin/wine-preloader" subj=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 key=(null)



I run the windows program correctly and with no problems, just that when I start the program I see the sealert(warning).  I don't really want to give this program what it is wanting for me to do, but I also don't want to see the warning everytime.  How should I approach this matter?

Thanks in Advance,

Antonio