Description of problem:

Customer reports that when running on certain hardware, a call to XQueryPointer
returns a child window that is then used as the target window in another call
to XQueryPointer and on this call the X Server returns Bad Window: the error
status is not checked and a pass by reference argument is used that has not
been set resulting in the query being repeated infinitely for the same bad
window.

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

RHEL 7.9
gtk2-2.24.31-1.el7.x86_64

How reproducible:

Unable to reproduce locally but customer claims it happens frequently. They
suspect different PC hardware is affecting the timing of the interaction between
the X client and the X server.

Steps to Reproduce:

N.A.

Actual results:

In certain circumstances and on certain hardware it leads customer application
to crash.

Expected results:

No crash

Additional info:

The problem does happen after applying the attached patch.

Customer has been informed that that RHEL 7 is in Maintenance Phase 2, so only
Critical and Important bugs are fixed.

Providing a package with the fix under a support exception would not work
because the software that requires the patch is distributed to third-parties.