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

Vulnerability from cvelistv5 – Published: 2026-06-24 16:28 – Updated: 2026-06-24 16:28
VLAI
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
Impacted products
Vendor Product Version
Linux Linux Affected: 70d645deac98303d1bf9ab08a4e68da52bf8c1e1 , < 9402ad98a047dd9894ec868a7df5ad9bd03327d3 (git)
Affected: 70d645deac98303d1bf9ab08a4e68da52bf8c1e1 , < 1d59f36e95f7f7134db0e313c9d787cb0adb2153 (git)
Create a notification for this product.
Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website

{
  "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-52949",
      "date": "2026-07-02",
      "epss": "0.00162",
      "percentile": "0.05794"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-52949\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-24T17:17:05.033\",\"lastModified\":\"2026-06-24T17:17:05.033\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/ttm/ttm_bo_util.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"70d645deac98303d1bf9ab08a4e68da52bf8c1e1\",\"lessThan\":\"9402ad98a047dd9894ec868a7df5ad9bd03327d3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"70d645deac98303d1bf9ab08a4e68da52bf8c1e1\",\"lessThan\":\"1d59f36e95f7f7134db0e313c9d787cb0adb2153\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/ttm/ttm_bo_util.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.10\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1d59f36e95f7f7134db0e313c9d787cb0adb2153\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9402ad98a047dd9894ec868a7df5ad9bd03327d3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…