watchdog: rzg2l_wdt: Fix 32bit overflow issue

{
  "id": "e6fffdbc312cb608a1e020b5d4c41603c612855d4d8cab951a6d13d5d4a6e795",
  "url": "https://osv.dev/vulnerability/CVE-2022-49387",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "watchdog: rzg2l_wdt: Fix 32bit overflow issue",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: watchdog: rzg2l_wdt: Fix 32bit overflow issue The value of timer_cycle_us can be 0 due to 32bit overflow. For eg:- If we assign the counter value \"0xfff\" for computing maxval. This patch fixes this issue by appending ULL to 1024, so that it is promoted to 64bit. This patch also fixes the warning message, 'watchdog: Invalid min and max timeout values, resetting to 0!'.",
    "evidence": "osv:CVE-2022-49387",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.17.15",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49387",
      "aliases": [
        "CVE-2022-49387"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
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              "type": "GIT",
              "events": [
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                {
                  "fixed": "e07b9fa0dc32b492de85528caaf9f0c605d8424f"
                },
                {
                  "fixed": "b95a47667d34e76c2c9013f8e3b1e5039a5a0b76"
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                {
                  "fixed": "ea2949df22a533cdf75e4583c00b1ce94cd5a83b"
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49387.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "5.17.15"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "5.18.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49387.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.511698238Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/b95a47667d34e76c2c9013f8e3b1e5039a5a0b76",
        "https://git.kernel.org/stable/c/e07b9fa0dc32b492de85528caaf9f0c605d8424f",
        "https://git.kernel.org/stable/c/ea2949df22a533cdf75e4583c00b1ce94cd5a83b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49387.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49387",
        "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/2022/49xxx/CVE-2022-49387.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49387",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521992,
  "published_at": "2025-02-26T02:11:21.804+00:00"
}