CVE-2025-37995 (GCVE-0-2025-37995)

Vulnerability from cvelistv5 – Published: 2025-05-29 13:15 – Updated: 2026-05-11 21:19
VLAI
Title
module: ensure that kobject_put() is safe for module type kobjects
Summary
In the Linux kernel, the following vulnerability has been resolved: module: ensure that kobject_put() is safe for module type kobjects In 'lookup_or_create_module_kobject()', an internal kobject is created using 'module_ktype'. So call to 'kobject_put()' on error handling path causes an attempt to use an uninitialized completion pointer in 'module_kobject_release()'. In this scenario, we just want to release kobject without an extra synchronization required for a regular module unloading process, so adding an extra check whether 'complete()' is actually required makes 'kobject_put()' safe.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < 93799fb988757cdacf19acba57807746c00378e6 (git)
Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < a63d99873547d8b39eb2f6db79dd235761e7098a (git)
Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < f1c71b4bd721a4ea21da408806964b10468623f2 (git)
Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < 9e7b49ce4f9d0cb5b6e87db9e07a2fb9e754b0dd (git)
Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < faa9059631d3491d699c69ecf512de9e1a3d6649 (git)
Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < d63851049f412cdfadaeef7a7eaef5031d11c1e9 (git)
Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < 31d8df3f303c3ae9115230820977ef8c35c88808 (git)
Affected: 942e443127e928a5631c3d5102aca8c8b3c2dd98 , < a6aeb739974ec73e5217c75a7c008a688d3d5cf1 (git)
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Linux Linux Affected: 3.12
Unaffected: 0 , < 3.12 (semver)
Unaffected: 5.4.294 , ≤ 5.4.* (semver)
Unaffected: 5.10.238 , ≤ 5.10.* (semver)
Unaffected: 5.15.183 , ≤ 5.15.* (semver)
Unaffected: 6.1.139 , ≤ 6.1.* (semver)
Unaffected: 6.6.91 , ≤ 6.6.* (semver)
Unaffected: 6.12.29 , ≤ 6.12.* (semver)
Unaffected: 6.14.7 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: m\u00f3dulo: garantizar que kobject_put() sea seguro para el tipo de m\u00f3dulo kobjects. En \u0027lookup_or_create_module_kobject()\u0027, se crea un kobject interno mediante \u0027module_ktype\u0027. Por lo tanto, la llamada a \u0027kobject_put()\u0027 en la ruta de gesti\u00f3n de errores provoca un intento de usar un puntero de finalizaci\u00f3n no inicializado en \u0027module_kobject_release()\u0027. En este escenario, solo queremos liberar kobject sin una sincronizaci\u00f3n adicional requerida para un proceso de descarga de m\u00f3dulo normal, por lo que a\u00f1adir una comprobaci\u00f3n adicional si \u0027complete()\u0027 es realmente necesario hace que \u0027kobject_put()\u0027 sea seguro."
          }
        ],
        "id": "CVE-2025-37995",
        "lastModified": "2026-06-17T09:15:50.733",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-05-29T14:15:36.043",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/31d8df3f303c3ae9115230820977ef8c35c88808"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/93799fb988757cdacf19acba57807746c00378e6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9e7b49ce4f9d0cb5b6e87db9e07a2fb9e754b0dd"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a63d99873547d8b39eb2f6db79dd235761e7098a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a6aeb739974ec73e5217c75a7c008a688d3d5cf1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d63851049f412cdfadaeef7a7eaef5031d11c1e9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f1c71b4bd721a4ea21da408806964b10468623f2"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/faa9059631d3491d699c69ecf512de9e1a3d6649"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-824"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T00:14:18+00:00",
      "cve": "CVE-2025-37995",
      "id": "CVE-2025-37995",
      "initial_release_date": "2025-05-29T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: module: ensure that kobject_put() is safe for module type kobjects",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37995.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-12T16:50:17Z",
      "cve": "CVE-2025-37995",
      "id": "CVE-2025-37995",
      "initial_release_date": "2025-05-30T01:26:36Z",
      "product_status:known_affected": "774",
      "product_status:known_not_affected": "6",
      "product_status:recommended": "433",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-37995",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-37995.json",
      "version": "44"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.