Vulnerability-Lookup

GHSA-7QP5-4FVR-94MM

Vulnerability from github – Published: 2025-10-04 18:31 – Updated: 2026-02-12 18:30

Details

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

mm/damon/core: initialize damo_filter->list from damos_new_filter()

damos_new_filter() is not initializing the list field of newly allocated filter object. However, DAMON sysfs interface and DAMON_RECLAIM are not initializing it after calling damos_new_filter(). As a result, accessing uninitialized memory is possible. Actually, adding multiple DAMOS filters via DAMON sysfs interface caused NULL pointer dereferencing. Initialize the field just after the allocation from damos_new_filter().

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53555"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:50Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: initialize damo_filter-\u003elist from damos_new_filter()\n\ndamos_new_filter() is not initializing the list field of newly allocated\nfilter object.  However, DAMON sysfs interface and DAMON_RECLAIM are not\ninitializing it after calling damos_new_filter().  As a result, accessing\nuninitialized memory is possible.  Actually, adding multiple DAMOS filters\nvia DAMON sysfs interface caused NULL pointer dereferencing.  Initialize\nthe field just after the allocation from damos_new_filter().",
  "id": "GHSA-7qp5-4fvr-94mm",
  "modified": "2026-02-12T18:30:18Z",
  "published": "2025-10-04T18:31:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53555"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f1fc67f2cb8d3035d3acd273b48b97835af8afd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da7beebb49c643cd03c54447ed66595936a7a1ce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-53555 (GCVE-0-2023-53555)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:17 – Updated: 2025-10-04 15:17

Title

mm/damon/core: initialize damo_filter->list from damos_new_filter()

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: initialize damo_filter->list from damos_new_filter() damos_new_filter() is not initializing the list field of newly allocated filter object. However, DAMON sysfs interface and DAMON_RECLAIM are not initializing it after calling damos_new_filter(). As a result, accessing uninitialized memory is possible. Actually, adding multiple DAMOS filters via DAMON sysfs interface caused NULL pointer dereferencing. Initialize the field just after the allocation from damos_new_filter().

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/da7beebb49c643cd0…
	https://git.kernel.org/stable/c/5f1fc67f2cb8d3035…

Impacted products

Vendor

Product

Version

Linux

Affected: 98def236f63c66629fb6b2d4b69cecffc5b46539 , < da7beebb49c643cd03c54447ed66595936a7a1ce (git)
Affected: 98def236f63c66629fb6b2d4b69cecffc5b46539 , < 5f1fc67f2cb8d3035d3acd273b48b97835af8afd (git)

Linux

Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.4.11 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "da7beebb49c643cd03c54447ed66595936a7a1ce",
              "status": "affected",
              "version": "98def236f63c66629fb6b2d4b69cecffc5b46539",
              "versionType": "git"
            },
            {
              "lessThan": "5f1fc67f2cb8d3035d3acd273b48b97835af8afd",
              "status": "affected",
              "version": "98def236f63c66629fb6b2d4b69cecffc5b46539",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/core.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.11",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: initialize damo_filter-\u003elist from damos_new_filter()\n\ndamos_new_filter() is not initializing the list field of newly allocated\nfilter object.  However, DAMON sysfs interface and DAMON_RECLAIM are not\ninitializing it after calling damos_new_filter().  As a result, accessing\nuninitialized memory is possible.  Actually, adding multiple DAMOS filters\nvia DAMON sysfs interface caused NULL pointer dereferencing.  Initialize\nthe field just after the allocation from damos_new_filter()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:17:00.514Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/da7beebb49c643cd03c54447ed66595936a7a1ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/5f1fc67f2cb8d3035d3acd273b48b97835af8afd"
        }
      ],
      "title": "mm/damon/core: initialize damo_filter-\u003elist from damos_new_filter()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53555",
    "datePublished": "2025-10-04T15:17:00.514Z",
    "dateReserved": "2025-10-04T15:14:15.922Z",
    "dateUpdated": "2025-10-04T15:17:00.514Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-7QP5-4FVR-94MM

CVE-2023-53555 (GCVE-0-2023-53555)

Tags

Sightings

Nomenclature