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Description of problem:
These two issues are being regularly hit on CentOS 7:
https://bugzilla.redhat.com/show_bug.cgi?id=975705
https://bugzilla.redhat.com/show_bug.cgi?id=1043116

as can be seen here:
https://retrace.fedoraproject.org/faf/problems/544766/

Although there is no reproducer available, the fixes are known and already applied upstream.

Version-Release number of selected component (if applicable):
system-config-printer-1.4.1-19.el7

How reproducible:
Not reproducible.

Created attachment 1347099 [details]
Backported patch

Backported patch from upstream - because there isn't any way how to reproduce it, I cannot test it.

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.

https://access.redhat.com/errata/RHBA-2018:0984