media: cec: extron-da-hd-4k-plus: add sanity check

{
  "id": "1566b9e4020e0315056035ae1823ba8969c9cbb350b59cf37c0ed33656d8deaa",
  "url": "https://osv.dev/vulnerability/CVE-2026-89898",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "media: cec: extron-da-hd-4k-plus: add sanity check",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: media: cec: extron-da-hd-4k-plus: add sanity check Add check to prevent overflowing msg.msg[] in case the incoming data is malformed.",
    "evidence": "osv:CVE-2026-89898",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.51",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-89898",
      "aliases": [
        "CVE-2026-89898"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "056f2821b631df2b94d3b017fd1e1eef918ed98d"
                },
                {
                  "fixed": "00c13b4ab481a09d915d099815cff1b10926ddd9"
                },
                {
                  "fixed": "673611cc2ab9769929644ce879f7ea34932a3011"
                },
                {
                  "fixed": "7ad2fec276946a0dedfa54eb26fc38c4fc6a6034"
                },
                {
                  "fixed": "abac9820b26b5cfcb01eb79efe2abdd0ac7e07c3"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89898.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.12.0"
                },
                {
                  "fixed": "6.12.110"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.51"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89898.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.994449599Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/00c13b4ab481a09d915d099815cff1b10926ddd9",
        "https://git.kernel.org/stable/c/673611cc2ab9769929644ce879f7ea34932a3011",
        "https://git.kernel.org/stable/c/7ad2fec276946a0dedfa54eb26fc38c4fc6a6034",
        "https://git.kernel.org/stable/c/abac9820b26b5cfcb01eb79efe2abdd0ac7e07c3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89898.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-89898",
        "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/2026/89xxx/CVE-2026-89898.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-89898",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494846,
  "published_at": "2026-09-16T10:31:58.901+00:00"
}