CVE-2026-98566 (GCVE-0-2026-98566)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:18 – Updated: 2026-10-19 09:21
VLAI
Title
drm/imagination: clamp freelist reconstruction requests
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/imagination: clamp freelist reconstruction requests The firmware reconstruction count controls accesses to the request's fixed freelist ID array and the copy into the fixed response array. Neither access currently bounds the count to those protocol arrays. Clamp the count to the request capacity, which is shared by the response layout, and use that count consistently for reconstruction and response publication. Keep the firmware recovery exchange instead of dropping an oversized request without a response, as discussed with the firmware maintainer. The issue was found by our static-analysis tool.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6820 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6eedddab733b350886571f98b810108b13bf74ae , < b78f8f5532a077baa4aabccf657a4fb3b164659e (git)
Affected: 6eedddab733b350886571f98b810108b13bf74ae , < e0560db0ea6e10c283ebe7c259a7af8d3b6e61a6 (git)
Affected: 6eedddab733b350886571f98b810108b13bf74ae , < eabd0ae3611769c826dbc118a1e240628731b348 (git)
Affected: 6eedddab733b350886571f98b810108b13bf74ae , < 45585c3aa285854face65293acc95eff73063d6d (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.55 , ≤ 6.18.* (semver)
Unaffected: 7.2.9 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/imagination/pvr_free_list.c"
          ],
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      "cpeApplicability": [
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
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      ],
      "descriptions": [
        {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: clamp freelist reconstruction requests\n\nThe firmware reconstruction count controls accesses to the request\u0027s\nfixed freelist ID array and the copy into the fixed response array.\nNeither access currently bounds the count to those protocol arrays.\n\nClamp the count to the request capacity, which is shared by the response\nlayout, and use that count consistently for reconstruction and response\npublication. Keep the firmware recovery exchange instead of dropping an\noversized request without a response, as discussed with the firmware\nmaintainer.\n\nThe issue was found by our static-analysis tool."
        }
      ],
      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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      "title": "drm/imagination: clamp freelist reconstruction requests",
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    "datePublished": "2026-10-18T15:18:32.679Z",
    "dateReserved": "2026-09-25T10:25:14.357Z",
    "dateUpdated": "2026-10-19T09:21:51.721Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-11-02",
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      "percentile": "0.1057"
    },
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      "id": "msrc_CVE-2026-98566",
      "initial_release_date": "2026-10-20T22:23:52.000Z",
      "product_status:under_investigation": "1",
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      "status": "final",
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      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98566.json",
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    "nvd": {
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: clamp freelist reconstruction requests\n\nThe firmware reconstruction count controls accesses to the request\u0027s\nfixed freelist ID array and the copy into the fixed response array.\nNeither access currently bounds the count to those protocol arrays.\n\nClamp the count to the request capacity, which is shared by the response\nlayout, and use that count consistently for reconstruction and response\npublication. Keep the firmware recovery exchange instead of dropping an\noversized request without a response, as discussed with the firmware\nmaintainer.\n\nThe issue was found by our static-analysis tool."
          }
        ],
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        "lastModified": "2026-10-19T10:19:14.463",
        "metrics": {},
        "published": "2026-10-18T16:17:08.767",
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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98566.json",
      "version": "3"
    }
  }
}



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