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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.
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