This bug has been copied from bug #834560 and has been proposed to be backported to 6.3 z-stream (EUS).
This is fixed in 6.4 now, a simple cherry pick of 2 patches is needed, addign devel ack.
This is fixed in usbredir-0.4.3-1.el6_3 moving to modified.
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-2012-1435.html