CVE ID:	CVE-2023-52673
Description:	In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix a debugfs null pointer error [WHY & HOW] Check whether get_subvp_en() callback exists before calling it.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2023-52673 https://git.kernel.org/stable/c/43235db21fc23559f50a62f8f273002eeb506f5a https://git.kernel.org/stable/c/43235db21fc23559f50a62f8f273002eeb506f5a https://git.kernel.org/stable/c/efb91fea652a42fcc037d2a9ef4ecd1ffc5ff4b7 https://git.kernel.org/stable/c/efb91fea652a42fcc037d2a9ef4ecd1ffc5ff4b7