+++ This bug was initially created as a clone of Bug #527002 +++ 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): qemu-system-x86-0.10.6-5.fc11 selinux-policy-3.6.12-83.fc11 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. Summary: SELinux is preventing pt_chown (ptchown_t) "read write" to /var/lib/libvirt/images/WinXP.img (svirt_image_t). Detailed Description: SELinux denied access requested by pt_chown. /var/lib/libvirt/images/WinXP.img may be a mislabeled. /var/lib/libvirt/images/WinXP.img default SELinux type is virt_image_t, but its current type is svirt_image_t. Changing this file back to the default type, may fix your problem. File contexts can be assigned to a file in the following ways. * Files created in a directory receive the file context of the parent directory by default. * The SELinux policy might override the default label inherited from the parent directory by specifying a process running in context A which creates a file in a directory labeled B will instead create the file with label C. An example of this would be the dhcp client running with the dhclient_t type and creates a file in the directory /etc. This file would normally receive the etc_t type due to parental inheritance but instead the file is labeled with the net_conf_t type because the SELinux policy specifies this. * Users can change the file context on a file using tools such as chcon, or restorecon. This file could have been mislabeled either by user error, or if an normally confined application was run under the wrong domain. However, this might also indicate a bug in SELinux because the file should not have been labeled with this type. If you believe this is a bug, please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package. Allowing Access: You can restore the default system context to this file by executing the restorecon command. restorecon '/var/lib/libvirt/images/WinXP.img', if this file is a directory, you can recursively restore using restorecon -R '/var/lib/libvirt/images/WinXP.img'. Fix Command: restorecon '/var/lib/libvirt/images/WinXP.img' Additional Information: Source Context system_u:system_r:ptchown_t:s0:c660,c775 Target Context system_u:object_r:svirt_image_t:s0:c660,c775 Target Objects /var/lib/libvirt/images/WinXP.img [ file ] Source pt_chown Source Path /usr/libexec/pt_chown Port <Unknown> Host Penna Source RPM Packages glibc-common-2.10.1-5 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 restorecon Host Name Penna Platform Linux Penna 2.6.30.8-64.fc11.x86_64 #1 SMP Fri Sep 25 04:43:32 EDT 2009 x86_64 x86_64 Alert Count 2 First Seen Fri 02 Oct 2009 08:36:23 PM EDT Last Seen Fri 02 Oct 2009 08:36:23 PM EDT Local ID 3f4d1b5a-d1f6-4fa6-a1bf-9a90355b561b Line Numbers Raw Audit Messages node=Penna type=AVC msg=audit(1254530183.927:29676): avc: denied { read write } for pid=21358 comm="pt_chown" path="/var/lib/libvirt/images/WinXP.img" dev=dm-0 ino=139452 scontext=system_u:system_r:ptchown_t:s0:c660,c775 tcontext=system_u:object_r:svirt_image_t:s0:c660,c775 tclass=file node=Penna type=AVC msg=audit(1254530183.927:29676): avc: denied { read write } for pid=21358 comm="pt_chown" path="/dev/net/tun" dev=tmpfs ino=2635 scontext=system_u:system_r:ptchown_t:s0:c660,c775 tcontext=system_u:object_r:tun_tap_device_t:s0 tclass=chr_file node=Penna type=SYSCALL msg=audit(1254530183.927:29676): arch=c000003e syscall=59 success=yes exit=0 a0=38ef734ebe a1=7fffcbfd9ef0 a2=0 a3=38f0417220 items=0 ppid=21354 pid=21358 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="pt_chown" exe="/usr/libexec/pt_chown" subj=system_u:system_r:ptchown_t:s0:c660,c775 key=(null)
This is actually a leaked file descriptor, but it is being triggered by a bug in anaconda. If you fix the devpts like in /etc/fstab to look like devpts /dev/pts devpts gid=5,mode=620 0 0 And later reboot, you will not see this problem any longer. The setroubleshoot should have noticed this as a leak.
I will fix the priority of the plugins for the next release, so leaks will fire before restorecon.
*** Bug 527002 has been marked as a duplicate of this bug. ***
Okay, I've filed bug #528134 for dealing with the leak Marking this as a dup of bug #515521 *** This bug has been marked as a duplicate of bug 515521 ***