[Vulnerability description]
freedesktop Mesa v23.0.4 was discovered to contain a NULL pointer dereference via the function check_xshm().

[Vulnerability Type]
NULL pointer dereference

[Vendor of Product]
freedesktop

[Affected Product Code Base]
Mesa - 23.0.4

[Reference]
https://gitlab.freedesktop.org/mesa/mesa/-/issues/9859

[CVE Reference]
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2023-45931 to this vulnerability.