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Description of problem:

Security section in VM Overview window. Choose static labeling and enter a label with a space character at the end, e.g.
"system_u:system_r:svirt_t:s0:c333,c666 ". This happens very often e.g. during copy&paste.

Choose apply, observe the error:
Error changing VM configuration: XML description for Invalid security label system_u:system_r:svirt_t:s0:c333,c666 is not well formed or invalid.

Version-Release number of selected component (if applicable):
virt-manager-0.8.6-3.el6.noarch

How reproducible:
always

Steps to Reproduce:
1. see above

Actual results:
Error

Expected results:
virt-manager strip white characters from the input and therefore the context is accepted.

Additional info:

Upstream now:

http://git.fedorahosted.org/git?p=virt-manager.git;a=commit;h=326e0f6a819354688bf9f3f21bb4c4e258e6d2b1

Fixed in virt-manager-0.9.0-2.el6

this bug can reproduce with:
virt-manager-0.8.6-4.el6

verify with:
virt-manager-0.9.0-5.el6
python-virtinst-0.600.0-2.el6
libvirt-0.9.4-1.el6
qemu-kvm-0.12.1.2-2.172.el6

step:
   1:goto Security section in VM Overview window. Choose static labeling and enter a label with a space character at the end, e.g.
"system_u:system_r:svirt_t:s0:c460,c779    " or
"  system_u:system_r:svirt_t:s0:c460,c779 "and click "apply"
virt-manager can strip white chars ,and no error occur.so the bug fixed.

Verification passed.

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
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    New Contents:
No description necessary

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2011-1642.html