{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "45717804b75eda8a76eacc04509ca4d68dd2caaf"
            },
            {
              "fixed": "40108f69c372af3aea73e7829d6849a44638d662"
            },
            {
              "fixed": "25fbbaf515acd13399589bd5ee6de5f35740cef2"
            }
          ],
          "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/2025/39xxx/CVE-2025-39954.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: sunxi-ng: mp: Fix dual-divider clock rate readback\n\nWhen dual-divider clock support was introduced, the P divider offset was\nleft out of the .recalc_rate readback function. This causes the clock\nrate to become bogus or even zero (possibly due to the P divider being\n1, leading to a divide-by-zero).\n\nFix this by incorporating the P divider offset into the calculation.",
  "id": "CVE-2025-39954",
  "modified": "2026-04-01T23:07:51.553053517Z",
  "published": "2025-10-09T09:47:32.825Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25fbbaf515acd13399589bd5ee6de5f35740cef2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40108f69c372af3aea73e7829d6849a44638d662"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39954.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39954"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "clk: sunxi-ng: mp: Fix dual-divider clock rate readback"
}