CVE-2026-98566

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.20 %higher than 9% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

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.

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The issue was found by our static-analysis tool.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.20 %
Percentile among all scored CVEs: 9
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

Show 4 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-98566",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6eedddab733b350886571f98b810108b13bf74ae",
              "lessThan": "b78f8f5532a077baa4aabccf657a4fb3b164659e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6eedddab733b350886571f98b810108b13bf74ae",
              "lessThan": "e0560db0ea6e10c283ebe7c259a7af8d3b6e61a6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6eedddab733b350886571f98b810108b13bf74ae",
              "lessThan": "eabd0ae3611769c826dbc118a1e240628731b348",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6eedddab733b350886571f98b810108b13bf74ae",
              "lessThan": "45585c3aa285854face65293acc95eff73063d6d",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/imagination/pvr_free_list.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.8",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/imagination/pvr_free_list.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:08.767",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/45585c3aa285854face65293acc95eff73063d6d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b78f8f5532a077baa4aabccf657a4fb3b164659e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e0560db0ea6e10c283ebe7c259a7af8d3b6e61a6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eabd0ae3611769c826dbc118a1e240628731b348",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "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's\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."
    }
  ],
  "lastModified": "2026-10-19T10:19:14.463",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}