{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2cbc5cd0b55fa2310cc557c77b0665f5e00272de"
            },
            {
              "fixed": "e07b9fa0dc32b492de85528caaf9f0c605d8424f"
            },
            {
              "fixed": "b95a47667d34e76c2c9013f8e3b1e5039a5a0b76"
            },
            {
              "fixed": "ea2949df22a533cdf75e4583c00b1ce94cd5a83b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49387.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: rzg2l_wdt: Fix 32bit overflow issue\n\nThe value of timer_cycle_us can be 0 due to 32bit overflow.\nFor eg:- If we assign the counter value \"0xfff\" for computing\nmaxval.\n\nThis patch fixes this issue by appending ULL to 1024, so that\nit is promoted to 64bit.\n\nThis patch also fixes the warning message, 'watchdog: Invalid min and\nmax timeout values, resetting to 0!'.",
  "id": "CVE-2022-49387",
  "modified": "2026-04-01T23:10:38.377950273Z",
  "published": "2025-02-26T02:11:21.804Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b95a47667d34e76c2c9013f8e3b1e5039a5a0b76"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e07b9fa0dc32b492de85528caaf9f0c605d8424f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea2949df22a533cdf75e4583c00b1ce94cd5a83b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49387.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49387"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "watchdog: rzg2l_wdt: Fix 32bit overflow issue"
}