CVE-2026-52949
kernel: drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 24, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) subsystem. Specifically, within the ttm_bo_shrink() function, a backup failure could lead to an infinite Least Recently Used (LRU) walk. This issue may allow a local attacker to trigger a Denial of Service (DoS), making the system unresponsive.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')