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Description of problem:
Behavior in pango_fc_font_key_get_variations(key) causes a crash in some applications when the key parameter is NULL due to lack of parameter validation.

Version-Release number of selected component (if applicable):
pango-1.42.4-1.el7

How reproducible:
Unable to reproduce Eclipse or pango-view, but customers have reported issues, and the issue is seen in other distros (see external bug list).

Additional info:
Patch is available upstream:

Fix crash in pango_fc_font_key_get_variations() when key is null (ad92e199) · Commits · GNOME / pango · GitLab
https://gitlab.gnome.org/GNOME/pango/commit/ad92e199f221499c19f22dce7a16e7d770ad3ae7

I just updated pango in Fedora, will check this bug later.

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-2019:2044