null pointer deference in gnome gtk via init_randr15() at gdkscreen-x11.c

[Meng Ruijie <ruijie_meng () u nus edu>]

[Vulnerability description]
gnome gtk f2a28891 was discovered to contain a segmentation violation via the function init_randr15() at 
gdkscreen-x11.c.

[VulnerabilityType Other]
null pointer deference

[Vendor of Product]
gnome

[Affected Product Code Base]
gtk - f2a28891

[Reference]
https://gitlab.gnome.org/GNOME/gtk/-/issues/5984

[CVE Reference]
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2023-45928 to this 
vulnerability.
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