Re: Fedora 17, SELinux & GoogleTalkPlugin

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On 06/18/2012 11:05 AM, Daniel J Walsh wrote:
> On 06/16/2012 05:14 AM, Stevo Slavić wrote:
>> Hello Fedora community,
> 
>> I've just upgraded Fedora 16 to 17 using PreUpgrade. After second restart
>> I was welcomed by SELinux alert (see [1] for alert details). This bug, 
>> https://bugzilla.redhat.com/show_bug.cgi?id=704591 , seems related but
>> it's labelled as fixed in older version of selinux-policy. Maybe
>> regression issue? Should I reopen bug or report another one? Is it a bug
>> at all - I'm not sure whether "GoogleTalkPlugin should be allowed getattr
>> access on the gpmctl sock_file by default".
> 
>> Kind regards, Stevo.
> 
> 
> 
>> [1] SELinux alert details
> 
>> SELinux is preventing /opt/google/talkplugin/GoogleTalkPlugin from
>> getattr access on the sock_file /dev/gpmctl.
> 
>> *****  Plugin catchall (100. confidence) suggests 
>> ***************************
> 
>> If you believe that GoogleTalkPlugin should be allowed getattr access on 
>> the gpmctl sock_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 GoogleTalkPlugi 
>> /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp
> 
>> Additional Information: Source Context 
>> unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c 0.c1023 Target
>> Context system_u:object_r:gpmctl_t:s0 Target Objects
>> /dev/gpmctl [ sock_file ] Source                        GoogleTalkPlugi
>> Source Path /opt/google/talkplugin/GoogleTalkPlugin Port <Unknown> Host
>> sslavic Source RPM Packages google-talkplugin-2.9.10.0-1.x86_64 Target
>> RPM Packages Policy RPM selinux-policy-3.10.0-128.fc17.noarch Selinux
>> Enabled               True Policy Type                   targeted
>> Enforcing Mode Enforcing Host Name                     sslavic Platform 
>> Linux sslavic 3.4.0-1.fc17.x86_64 #1 SMP Sun Jun 3 06:35:17 UTC 2012
>> x86_64 x86_64 Alert Count                   4 First Seen
>> Sat 16 Jun 2012 10:36:53 AM CEST Last Seen                     Sat 16 Jun
>> 2012 10:36:54 AM CEST Local ID c1545ce3-f86b-4e20-b078-8db9db556a52
> 
>> Raw Audit Messages type=AVC msg=audit(1339835814.939:165): avc:  denied
>> { getattr } for  pid=8507 comm="GoogleTalkPlugi" path="/dev/gpmctl" 
>> dev="devtmpfs" ino=15878 
>> scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 
>> tcontext=system_u:object_r:gpmctl_t:s0 tclass=sock_file
> 
> 
>> type=SYSCALL msg=audit(1339835814.939:165): arch=x86_64 syscall=stat 
>> success=no exit=EACCES a0=23fc998 a1=23fd580 a2=23fd580 a3=24 items=0 
>> ppid=1 pid=8507 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000
>> fsuid=1000 egid=1000 sgid=1000 fsgid=1000 tty=(none) ses=2
>> comm=GoogleTalkPlugi exe=/opt/google/talkplugin/GoogleTalkPlugin 
>> subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023
>> key=(null)
> 
>> Hash: GoogleTalkPlugi,mozilla_plugin_t,gpmctl_t,sock_file,getattr
> 
>> audit2allowunable to open /sys/fs/selinux/policy:  Permission denied
> 
> 
>> audit2allow -Runable to open /sys/fs/selinux/policy:  Permission denied
> 
> 
> 
> 
> 
> 
> 
> This should be dontaudited and can be safely ignored,  Basically the plugin
> is doing an ls -l /dev, and this is generating the AVC.  GoolgeTalkPlugin
> has no need to interact with gpmctl.
> 
> 
> 
> 
> 


I just added a dontaudit line.
Fixed in selinux-policy-3.10.0-132.fc17
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