{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "14d962602c8bf86e63c9b9272be1f0360d0a448a"
            },
            {
              "fixed": "6f6a5b0b0a84c2de0e152f2841e57bc226db924f"
            },
            {
              "fixed": "8eca0f85eeb0789be40e637bcf9a21c4265b6c6f"
            },
            {
              "fixed": "ffc27411ea60b8a09f1fea3d664b65210fdeb454"
            },
            {
              "fixed": "5626785b0e4665326e4d96736c106161da09b2f0"
            },
            {
              "fixed": "3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d"
            },
            {
              "fixed": "342632a4d8ba3fafc1556deee0b7a48dd7860336"
            },
            {
              "fixed": "7d221859ba45d7228d0138c9a3e55bd3bb31e14e"
            },
            {
              "fixed": "330f2936ab768c7215322a476f033143e8891d28"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.28"
            },
            {
              "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-2026-89878.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: check firmware size before reading trailing marker\n\ns2255_probe() reads a 4-byte marker and version from the last 8 bytes\nof the firmware blob (fw-\u003edata[fw_size - 8] and [fw_size - 4]). If the\nfirmware file is shorter than 8 bytes, fw_size - 8 underflows and the\naccess reads out of bounds. Validate the firmware size before indexing.",
  "id": "CVE-2026-89878",
  "modified": "2026-09-18T03:30:56.835199281Z",
  "published": "2026-09-16T10:31:44.876Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/330f2936ab768c7215322a476f033143e8891d28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/342632a4d8ba3fafc1556deee0b7a48dd7860336"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5626785b0e4665326e4d96736c106161da09b2f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f6a5b0b0a84c2de0e152f2841e57bc226db924f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d221859ba45d7228d0138c9a3e55bd3bb31e14e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8eca0f85eeb0789be40e637bcf9a21c4265b6c6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffc27411ea60b8a09f1fea3d664b65210fdeb454"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89878.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89878"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "media: s2255: check firmware size before reading trailing marker"
}