{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "9881fe0ca187c213eb3a6a8e78e45ad4d1cec171"
            },
            {
              "fixed": "efc829b4b937f98c4467bffe9243f756b7cfbf7f"
            },
            {
              "fixed": "cac577854826950dda4d53569728b1da6c1425d5"
            },
            {
              "fixed": "4b532b271c91790b7ab661cd488a7ad36f5c4f6b"
            },
            {
              "fixed": "271e57a936dcdbaecb4b1bd005d9a285bbe60ab4"
            },
            {
              "fixed": "df941e6851da17fc53c7f6af2bdcc7383d17babc"
            },
            {
              "fixed": "5c62095acc2a952099688774513c4a637bcdb2b5"
            },
            {
              "fixed": "ae614f48712156fb0f55b207338d48d422c58bc0"
            },
            {
              "fixed": "1924d0788caa6c66fd320dd4704fae99487fd2c7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.8.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "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"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89897.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cec: Serialize exclusive follower delivery\n\ncec_receive_notify() reads the exclusive follower pointer without the\nadapter lock. Serialize the no-follower check and message delivery\nagainst mode changes and release.",
  "id": "CVE-2026-89897",
  "modified": "2026-09-18T03:30:52.769096366Z",
  "published": "2026-09-16T10:31:58.184Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1924d0788caa6c66fd320dd4704fae99487fd2c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/271e57a936dcdbaecb4b1bd005d9a285bbe60ab4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b532b271c91790b7ab661cd488a7ad36f5c4f6b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c62095acc2a952099688774513c4a637bcdb2b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae614f48712156fb0f55b207338d48d422c58bc0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cac577854826950dda4d53569728b1da6c1425d5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df941e6851da17fc53c7f6af2bdcc7383d17babc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/efc829b4b937f98c4467bffe9243f756b7cfbf7f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89897.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89897"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "media: cec: Serialize exclusive follower delivery"
}