CVE-2024-49990

In the Linux kernel, the following vulnerability has been resolved:

drm/xe/hdcp: Check GSC structure validity

Sometimes xe_gsc is not initialized when checked at HDCP capability
check. Add gsc structure check to avoid null pointer error.

More information : https://git.kernel.org/stable/c/7266a424b1e502745170322e3c27f697d12de627