---
id: CVE-2026-52949
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure

  Apply the same fix as b2ed01e7ad ("drm/ttm: Fix ttm_bo_swapout()
  infinite LRU walk on swapout failure"…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure

  Apply the same fix as b2ed01e7ad ("drm/ttm: Fix ttm_bo_swapout()
  infinite LRU walk on swapout failure"…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 6.15, < 7.0.10'
  - linux_kernel = 7.1
patched:
  - linux_kernel 7.0.10
published: '2026-06-24'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T11:17:34.940'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52949'
references:
  - url: 'https://git.kernel.org/stable/c/1d59f36e95f7f7134db0e313c9d787cb0adb2153'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9402ad98a047dd9894ec868a7df5ad9bd03327d3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d0ce7b07dafe43d78150f90894027746576d7cb7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.0016
epssPercentile: 0.05133
ingestedAt: '2026-07-11T13:13:24.782Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure

Apply the same fix as b2ed01e7ad ("drm/ttm: Fix ttm_bo_swapout()
infinite LRU walk on swapout failure") to the ttm_bo_shrink() path.

Move del_bulk_move from before the backup to after success only,
using ttm_resource_del_bulk_move_unevictable() since the resource
is now unevictable once fully backed up.

## Affected

- `linux_kernel >= 6.15, < 7.0.10`
- `linux_kernel = 7.1`

## Remediation

Upgrade past the affected range:

- `linux_kernel 7.0.10`