drm/panthor: validate firmware interface structure sizes

{
  "id": "eb16e8e2e47dc944988591d9913d8353d54b3b41862c0af0992e1adff98661fc",
  "url": "https://osv.dev/vulnerability/CVE-2026-74451",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/panthor: validate firmware interface structure sizes",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/panthor: validate firmware interface structure sizes iface_fw_to_cpu_addr() only checks that the firmware-provided MCU virtual address points inside the shared section. The returned pointer is later used as a full firmware interface structure, so accepting an address near the end of the shared section can still lead to out-of-bounds accesses. Pass the expected object size to iface_fw_to_cpu_addr() and reject ranges that do not fit entirely in the shared section.",
    "evidence": "osv:CVE-2026-74451",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.103",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.44",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-74451",
      "aliases": [
        "CVE-2026-74451"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
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                  "fixed": "b921b8613790a3f9e78ab64017fa7149ef0b750c"
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              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74451.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.10.0"
                },
                {
                  "fixed": "6.12.103"
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              ]
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.44"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
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                {
                  "fixed": "7.1.8"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74451.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.542306788Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/21c77486f5a60bb9c0433c21de62a5f25d5091f1",
        "https://git.kernel.org/stable/c/b921b8613790a3f9e78ab64017fa7149ef0b750c",
        "https://git.kernel.org/stable/c/c835f2b0b7167584832b516c9b0a26e9180d1d0b",
        "https://git.kernel.org/stable/c/ca41d9f3a21586bf29df53eec05152ecf2b2f94f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74451.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-74451",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74451.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-74451",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497731,
  "published_at": "2026-08-15T12:26:55.722+00:00"
}