github - ghsa-g295-3qg8-vf4w

ghsa-g295-3qg8-vf4w

Vulnerability from github

Published

2025-10-09 12:30

Modified

2025-10-09 12:30

Details

In the Linux kernel, the following vulnerability has been resolved:

clk: sunxi-ng: mp: Fix dual-divider clock rate readback

When dual-divider clock support was introduced, the P divider offset was left out of the .recalc_rate readback function. This causes the clock rate to become bogus or even zero (possibly due to the P divider being 1, leading to a divide-by-zero).

Fix this by incorporating the P divider offset into the calculation.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39954"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-09T10:15:31Z",
    "severity": null
  },
  "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": "GHSA-g295-3qg8-vf4w",
  "modified": "2025-10-09T12:30:18Z",
  "published": "2025-10-09T12:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39954"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25fbbaf515acd13399589bd5ee6de5f35740cef2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40108f69c372af3aea73e7829d6849a44638d662"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-39954 (GCVE-0-2025-39954)

Vulnerability from cvelistv5

Published

2025-10-09 09:47

Modified

2025-10-09 09:47

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: clk: sunxi-ng: mp: Fix dual-divider clock rate readback When dual-divider clock support was introduced, the P divider offset was left out of the .recalc_rate readback function. This causes the clock rate to become bogus or even zero (possibly due to the P divider being 1, leading to a divide-by-zero). Fix this by incorporating the P divider offset into the calculation.

References

URL

Tags

	https://git.kernel.org/stable/c/40108f69c372af3aea73e7829d6849a44638d662
	https://git.kernel.org/stable/c/25fbbaf515acd13399589bd5ee6de5f35740cef2

Impacted products

Vendor

Product

Version

Version: 45717804b75eda8a76eacc04509ca4d68dd2caaf
Version: 45717804b75eda8a76eacc04509ca4d68dd2caaf

Version: 6.15

Show details on NVD website

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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/sunxi-ng/ccu_mp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
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              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
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                  "versionEndExcluding": "6.16.9",
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.17",
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                }
              ],
              "negate": false,
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-09T09:47:32.825Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/40108f69c372af3aea73e7829d6849a44638d662"
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        {
          "url": "https://git.kernel.org/stable/c/25fbbaf515acd13399589bd5ee6de5f35740cef2"
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    "cveId": "CVE-2025-39954",
    "datePublished": "2025-10-09T09:47:32.825Z",
    "dateReserved": "2025-04-16T07:20:57.149Z",
    "dateUpdated": "2025-10-09T09:47:32.825Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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