github - ghsa-cw7w-cfpj-r652

ghsa-cw7w-cfpj-r652

Vulnerability from github

Published

2025-07-10 09:32

Modified

2025-07-10 09:32

Details

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

PM: EM: Fix potential division-by-zero error in em_compute_costs()

When the device is of a non-CPU type, table[i].performance won't be initialized in the previous em_init_performance(), resulting in division by zero when calculating costs in em_compute_costs().

Since the 'cost' algorithm is only used for EAS energy efficiency calculations and is currently not utilized by other device drivers, we should add the _is_cpu_device(dev) check to prevent this division-by-zero issue.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38297"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-10T08:15:28Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM: EM: Fix potential division-by-zero error in em_compute_costs()\n\nWhen the device is of a non-CPU type, table[i].performance won\u0027t be\ninitialized in the previous em_init_performance(), resulting in division\nby zero when calculating costs in em_compute_costs().\n\nSince the \u0027cost\u0027 algorithm is only used for EAS energy efficiency\ncalculations and is currently not utilized by other device drivers, we\nshould add the _is_cpu_device(dev) check to prevent this division-by-zero\nissue.",
  "id": "GHSA-cw7w-cfpj-r652",
  "modified": "2025-07-10T09:32:29Z",
  "published": "2025-07-10T09:32:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38297"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14cbdd64f3870cf0a2d94b87919b9056448c59a0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/179c0c7044a378198adb36f2a12410ab68cc730a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81d72f9241d884ec29524431f74f8009310cfa0c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-38297 (GCVE-0-2025-38297)

Vulnerability from cvelistv5

Published

2025-07-10 07:42

Modified

2025-07-28 04:17

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: PM: EM: Fix potential division-by-zero error in em_compute_costs() When the device is of a non-CPU type, table[i].performance won't be initialized in the previous em_init_performance(), resulting in division by zero when calculating costs in em_compute_costs(). Since the 'cost' algorithm is only used for EAS energy efficiency calculations and is currently not utilized by other device drivers, we should add the _is_cpu_device(dev) check to prevent this division-by-zero issue.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/81d72f9241d884ec29524431f74f8009310cfa0c
	https://git.kernel.org/stable/c/14cbdd64f3870cf0a2d94b87919b9056448c59a0
	https://git.kernel.org/stable/c/179c0c7044a378198adb36f2a12410ab68cc730a

Impacted products

Vendor

Product

Version

▼

Linux

Version: 1b600da510735a0f92c8b4140a7e2cb037a6a6c3
Version: 1b600da510735a0f92c8b4140a7e2cb037a6a6c3
Version: 1b600da510735a0f92c8b4140a7e2cb037a6a6c3

Linux

Version: 6.9

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/power/energy_model.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "81d72f9241d884ec29524431f74f8009310cfa0c",
              "status": "affected",
              "version": "1b600da510735a0f92c8b4140a7e2cb037a6a6c3",
              "versionType": "git"
            },
            {
              "lessThan": "14cbdd64f3870cf0a2d94b87919b9056448c59a0",
              "status": "affected",
              "version": "1b600da510735a0f92c8b4140a7e2cb037a6a6c3",
              "versionType": "git"
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            {
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              "version": "1b600da510735a0f92c8b4140a7e2cb037a6a6c3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
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          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
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              "status": "unaffected",
              "version": "0",
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
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            },
            {
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              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver"
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              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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                  "versionEndExcluding": "6.12.34",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.3",
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM: EM: Fix potential division-by-zero error in em_compute_costs()\n\nWhen the device is of a non-CPU type, table[i].performance won\u0027t be\ninitialized in the previous em_init_performance(), resulting in division\nby zero when calculating costs in em_compute_costs().\n\nSince the \u0027cost\u0027 algorithm is only used for EAS energy efficiency\ncalculations and is currently not utilized by other device drivers, we\nshould add the _is_cpu_device(dev) check to prevent this division-by-zero\nissue."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:17:50.092Z",
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    "datePublished": "2025-07-10T07:42:10.918Z",
    "dateReserved": "2025-04-16T04:51:24.002Z",
    "dateUpdated": "2025-07-28T04:17:50.092Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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