The Linux kernel’s DRM/TTM graphics memory manager contains a flaw where a backup failure triggers an infinite walk of the least‑recently‑used list. This causes the kernel to lock up CPU cycles, resulting in a denial‑of‑service as the system becomes sluggish or unresponsive. The weakness arises from improper resource cleanup on backup failure and can be mapped to CWE‑665.

All Linux kernel releases that have not incorporated the change introduced by commit b2ed01e7ad are affected. The patch addresses DRM/TTM, a core kernel subsystem, so any distribution shipping an affected kernel build is vulnerable. No specific vendor or version list is provided.

No CVSS score is published and EPSS is unavailable, making precise risk measurement difficult. The flaw is not listed in CISA KEV, indicating no publicly known exploits. Based on the description, it is inferred that exploitation would require local or elevated privileges to induce a backup failure, so remote exploitation is unlikely. Nonetheless, the DoS impact could be severe for systems that rely on continuous GPU or graphics performance, treating this as a high‑severity local DoS threat.