Vulnerability-Lookup

GHSA-WVCW-5XVM-Q83M

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-24 18:32

Details

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.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-52949"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:05Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure\n\nApply the same fix as b2ed01e7ad (\"drm/ttm: Fix ttm_bo_swapout()\ninfinite LRU walk on swapout failure\") to the ttm_bo_shrink() path.\n\nMove del_bulk_move from before the backup to after success only,\nusing ttm_resource_del_bulk_move_unevictable() since the resource\nis now unevictable once fully backed up.",
  "id": "GHSA-wvcw-5xvm-q83m",
  "modified": "2026-06-24T18:32:41Z",
  "published": "2026-06-24T18:32:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52949"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d59f36e95f7f7134db0e313c9d787cb0adb2153"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9402ad98a047dd9894ec868a7df5ad9bd03327d3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-52949 (GCVE-0-2026-52949)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:28 – Updated: 2026-06-24 16:28

Title

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

Severity

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/9402ad98a047dd989…
https://git.kernel.org/stable/c/1d59f36e95f7f7134…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 70d645deac98303d1bf9ab08a4e68da52bf8c1e1 , < 9402ad98a047dd9894ec868a7df5ad9bd03327d3 (git) Affected: 70d645deac98303d1bf9ab08a4e68da52bf8c1e1 , < 1d59f36e95f7f7134db0e313c9d787cb0adb2153 (git)
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ttm/ttm_bo_util.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9402ad98a047dd9894ec868a7df5ad9bd03327d3",
              "status": "affected",
              "version": "70d645deac98303d1bf9ab08a4e68da52bf8c1e1",
              "versionType": "git"
            },
            {
              "lessThan": "1d59f36e95f7f7134db0e313c9d787cb0adb2153",
              "status": "affected",
              "version": "70d645deac98303d1bf9ab08a4e68da52bf8c1e1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ttm/ttm_bo_util.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.10",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure\n\nApply the same fix as b2ed01e7ad (\"drm/ttm: Fix ttm_bo_swapout()\ninfinite LRU walk on swapout failure\") to the ttm_bo_shrink() path.\n\nMove del_bulk_move from before the backup to after success only,\nusing ttm_resource_del_bulk_move_unevictable() since the resource\nis now unevictable once fully backed up."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T16:28:32.684Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9402ad98a047dd9894ec868a7df5ad9bd03327d3"
        },
        {
          "url": "https://git.kernel.org/stable/c/1d59f36e95f7f7134db0e313c9d787cb0adb2153"
        }
      ],
      "title": "drm/ttm: Fix ttm_bo_shrink() infinite LRU walk on backup failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-52949",
    "datePublished": "2026-06-24T16:28:32.684Z",
    "dateReserved": "2026-06-09T07:44:35.371Z",
    "dateUpdated": "2026-06-24T16:28:32.684Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-WVCW-5XVM-Q83M

CVE-2026-52949 (GCVE-0-2026-52949)

Tags

Sightings

Nomenclature