Bug 527002 - SELinux Fix Command Does Not Remove Application Block
SELinux Fix Command Does Not Remove Application Block
Status: CLOSED DUPLICATE of bug 527003
Product: Fedora
Classification: Fedora
Component: selinux-policy-targeted (Show other bugs)
x86_64 Linux
low Severity medium
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Assigned To: Daniel Walsh
Ben Levenson
Depends On:
  Show dependency treegraph
Reported: 2009-10-02 20:41 EDT by Mark Walker
Modified: 2009-10-03 06:39 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 527003 (view as bug list)
Last Closed: 2009-10-03 06:39:40 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Mark Walker 2009-10-02 20:41:10 EDT
Description of problem:
SELinux consistently blocks qemu in virt-manager from running image, even after fixes applied multiple times.

Version-Release number of selected component (if applicable):

How reproducible:
Start virtual machine.  Watch hang on boot from virtual hard drive.

Steps to Reproduce:
1. Open Virtual Machine Manager 0.7.0
2. Select VM to run
3. Run VM
Actual results:
VM hangs at "Booting from Hard Disk..."
Multiple AVC errors occur

Expected results:
VM to run as installed

Additional info:

Fix command does not help.


SELinux prevented qemu from using the terminal 1.

Detailed Description:

SELinux prevented qemu from using the terminal 1. In most cases daemons do not
need to interact with the terminal, usually these avc messages can be ignored.
All of the confined daemons should have dontaudit rules around using the
terminal. Please file a bug report
(http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this selinux-policy.
If you would like to allow all daemons to interact with the terminal, you can
turn on the allow_daemons_use_tty boolean.

Allowing Access:

Changing the "allow_daemons_use_tty" boolean to true will allow this access:
"setsebool -P allow_daemons_use_tty=1."

Fix Command:

setsebool -P allow_daemons_use_tty=1

Additional Information:

Source Context                system_u:system_r:svirt_t:s0:c345,c533
Target Context                system_u:object_r:devpts_t:s0:c345,c533
Target Objects                1 [ chr_file ]
Source                        qemu
Source Path                   /usr/bin/qemu
Port                          <Unknown>
Host                          Penna
Source RPM Packages           qemu-system-x86-0.10.6-5.fc11
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.12-83.fc11
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   allow_daemons_use_tty
Host Name                     Penna
Platform                      Linux Penna #1 SMP Fri Sep
                              25 04:43:32 EDT 2009 x86_64 x86_64
Alert Count                   1
First Seen                    Fri 02 Oct 2009 08:01:02 PM EDT
Last Seen                     Fri 02 Oct 2009 08:01:02 PM EDT
Local ID                      da6b8af3-c995-42cc-82d1-d285acda3ea6
Line Numbers                  

Raw Audit Messages            

node=Penna type=AVC msg=audit(1254528062.922:29667): avc:  denied  { setattr } for  pid=3028 comm="qemu" name="1" dev=devpts ino=4 scontext=system_u:system_r:svirt_t:s0:c345,c533 tcontext=system_u:object_r:devpts_t:s0:c345,c533 tclass=chr_file

node=Penna type=SYSCALL msg=audit(1254528062.922:29667): arch=c000003e syscall=92 success=yes exit=0 a0=7fffdb6969c0 a1=0 a2=5 a3=7fffdb6962b0 items=0 ppid=1 pid=3028 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="qemu" exe="/usr/bin/qemu" subj=system_u:system_r:svirt_t:s0:c345,c533 key=(null)
Comment 1 Daniel Walsh 2009-10-03 06:39:40 EDT

*** This bug has been marked as a duplicate of bug 527003 ***

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