CVE-2026-68238 drm/amdgpu: Release VFCT ACPI table reference

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Release VFCT ACPI table reference amdgpuacpivfctbios fetches the VFCT table with acpigettable but never releases it. acpigettable takes a reference on the table incrementing its validationcount and mapping it on the 0...