{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b04ce63859793e3439b394976b8d29e785d4d69a"
            },
            {
              "fixed": "3f43865cb64dd7cb50efae1281a95585617b12a1"
            },
            {
              "fixed": "9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9"
            },
            {
              "fixed": "030675aa54cf757769b3db65642433d626b3ed7c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64236.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: davinci: fix division by zero on missing clock-frequency\n\nWhen the 'clock-frequency' property is missing from the device tree,\nthe driver falls back to DAVINCI_I2C_DEFAULT_BUS_FREQ. However, this\nmacro was defined in kHz (100), whereas the device tree property is\nexpected in Hz.\n\nThe probe function divided the fallback value by 1000, causing\ninteger truncation that resulted in dev-\u003ebus_freq = 0. This triggered\na deterministic division-by-zero kernel panic when calculating clock\ndividers later in the probe sequence.\n\nFix this by redefining DAVINCI_I2C_DEFAULT_BUS_FREQ in Hz (100000)\nto match the expected device tree property unit, allowing the existing\ndivision logic to work correctly for both cases.",
  "id": "CVE-2026-64236",
  "modified": "2026-07-27T03:56:30.902916103Z",
  "published": "2026-07-24T15:27:41.371Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/030675aa54cf757769b3db65642433d626b3ed7c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f43865cb64dd7cb50efae1281a95585617b12a1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64236.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64236"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "i2c: davinci: fix division by zero on missing clock-frequency"
}