github - ghsa-qwp2-9fw4-x3jx

GHSA-QWP2-9FW4-X3JX

Vulnerability from github – Published: 2025-12-04 18:30 – Updated: 2025-12-04 18:30

Details

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

mm/damon/sysfs: dealloc commit test ctx always

The damon_ctx for testing online DAMON parameters commit inputs is deallocated only when the test fails. This means memory is leaked for every successful online DAMON parameters commit. Fix the leak by always deallocating it.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40227"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-04T16:16:15Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs: dealloc commit test ctx always\n\nThe damon_ctx for testing online DAMON parameters commit inputs is\ndeallocated only when the test fails.  This means memory is leaked for\nevery successful online DAMON parameters commit.  Fix the leak by always\ndeallocating it.",
  "id": "GHSA-qwp2-9fw4-x3jx",
  "modified": "2025-12-04T18:30:52Z",
  "published": "2025-12-04T18:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40227"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/139e7a572af0b45f558b5e502121a768dc328ba8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ba236520ae53418859f4b7c7de3c71478d3c0b5a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-40227 (GCVE-0-2025-40227)

Vulnerability from cvelistv5 – Published: 2025-12-04 15:31 – Updated: 2025-12-04 15:31

Title

mm/damon/sysfs: dealloc commit test ctx always

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc commit test ctx always The damon_ctx for testing online DAMON parameters commit inputs is deallocated only when the test fails. This means memory is leaked for every successful online DAMON parameters commit. Fix the leak by always deallocating it.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/ba236520ae5341885…
	https://git.kernel.org/stable/c/139e7a572af0b45f5…

Impacted products

Vendor

Product

Version

Linux

Affected: 4c9ea539ad59ec60676930dacee02b7adde2e0c0 , < ba236520ae53418859f4b7c7de3c71478d3c0b5a (git)
Affected: 4c9ea539ad59ec60676930dacee02b7adde2e0c0 , < 139e7a572af0b45f558b5e502121a768dc328ba8 (git)

Linux

Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.17.6 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ba236520ae53418859f4b7c7de3c71478d3c0b5a",
              "status": "affected",
              "version": "4c9ea539ad59ec60676930dacee02b7adde2e0c0",
              "versionType": "git"
            },
            {
              "lessThan": "139e7a572af0b45f558b5e502121a768dc328ba8",
              "status": "affected",
              "version": "4c9ea539ad59ec60676930dacee02b7adde2e0c0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.6",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs: dealloc commit test ctx always\n\nThe damon_ctx for testing online DAMON parameters commit inputs is\ndeallocated only when the test fails.  This means memory is leaked for\nevery successful online DAMON parameters commit.  Fix the leak by always\ndeallocating it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-04T15:31:18.839Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ba236520ae53418859f4b7c7de3c71478d3c0b5a"
        },
        {
          "url": "https://git.kernel.org/stable/c/139e7a572af0b45f558b5e502121a768dc328ba8"
        }
      ],
      "title": "mm/damon/sysfs: dealloc commit test ctx always",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40227",
    "datePublished": "2025-12-04T15:31:18.839Z",
    "dateReserved": "2025-04-16T07:20:57.180Z",
    "dateUpdated": "2025-12-04T15:31:18.839Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-QWP2-9FW4-X3JX

CVE-2025-40227 (GCVE-0-2025-40227)

Tags

Sightings

Nomenclature