CVE-2023-53625 drm/i915/gvt: fix vgpu debugfs clean in remove

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gvt: fix vgpu debugfs clean in remove Check carefully on root debugfs available when destroying vgpu, e.g in remove case drm minor's debugfs root might already be destroyed, which led to kernel oops like below. Console:...

PT-2025-41069

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.0-rc2+ 6 Description A flaw exists in the Linux kernel's i915/gvt component related to the handling of debugfs cleanup during vgpu removal. Specifically, the code does not carefully check for the availability...