CVE-2025-37962 (GCVE-0-2025-37962)

Vulnerability from cvelistv5 – Published: 2025-05-20 16:01 – Updated: 2025-11-03 19:57
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leak in parse_lease_state() The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocated lease_ctx_info structure. This patch fixes the issue by adding kfree(lreq) before returning NULL in both boundary check cases.
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 629dd37acc336ad778979361c351e782053ea284 , < facf22c1a394c1e023dab5daf9a494f722771e1c (git)
Affected: 60b7207893a8a06c78441934931a08fdad63f18e , < af9e2d4732a548db8f6f5a90c2c20a789a3d7240 (git)
Affected: 800c482c9ef5910f05e3a713943c67cc6c1d4939 , < 2148d34371b06dac696c0497a98a6bf905a51650 (git)
Affected: 9a1b6ea955e6c7b29939a6d98701202f9d9644ec , < 829e19ef741d9e9932abdc3bee5466195e0852cf (git)
Affected: bab703ed8472aa9d109c5f8c1863921533363dae , < eb4447bcce915b43b691123118893fca4f372a8f (git)
Affected: a41cd52f00907a040ca22c73d4805bb79b0d0972 (git)
Create a notification for this product.
    Linux Linux Affected: 6.1.134 , < 6.1.139 (semver)
Affected: 6.6.87 , < 6.6.91 (semver)
Affected: 6.12.23 , < 6.12.29 (semver)
Affected: 6.14.2 , < 6.14.7 (semver)
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:57:47.028Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/oplock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "facf22c1a394c1e023dab5daf9a494f722771e1c",
              "status": "affected",
              "version": "629dd37acc336ad778979361c351e782053ea284",
              "versionType": "git"
            },
            {
              "lessThan": "af9e2d4732a548db8f6f5a90c2c20a789a3d7240",
              "status": "affected",
              "version": "60b7207893a8a06c78441934931a08fdad63f18e",
              "versionType": "git"
            },
            {
              "lessThan": "2148d34371b06dac696c0497a98a6bf905a51650",
              "status": "affected",
              "version": "800c482c9ef5910f05e3a713943c67cc6c1d4939",
              "versionType": "git"
            },
            {
              "lessThan": "829e19ef741d9e9932abdc3bee5466195e0852cf",
              "status": "affected",
              "version": "9a1b6ea955e6c7b29939a6d98701202f9d9644ec",
              "versionType": "git"
            },
            {
              "lessThan": "eb4447bcce915b43b691123118893fca4f372a8f",
              "status": "affected",
              "version": "bab703ed8472aa9d109c5f8c1863921533363dae",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a41cd52f00907a040ca22c73d4805bb79b0d0972",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/oplock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.1.139",
              "status": "affected",
              "version": "6.1.134",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.91",
              "status": "affected",
              "version": "6.6.87",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.29",
              "status": "affected",
              "version": "6.12.23",
              "versionType": "semver"
            },
            {
              "lessThan": "6.14.7",
              "status": "affected",
              "version": "6.14.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.139",
                  "versionStartIncluding": "6.1.134",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.91",
                  "versionStartIncluding": "6.6.87",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.29",
                  "versionStartIncluding": "6.12.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.7",
                  "versionStartIncluding": "6.14.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.13.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix memory leak in parse_lease_state()\n\nThe previous patch that added bounds check for create lease context\nintroduced a memory leak. When the bounds check fails, the function\nreturns NULL without freeing the previously allocated lease_ctx_info\nstructure.\n\nThis patch fixes the issue by adding kfree(lreq) before returning NULL\nin both boundary check cases."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:24:39.073Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c"
        },
        {
          "url": "https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240"
        },
        {
          "url": "https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650"
        },
        {
          "url": "https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f"
        }
      ],
      "title": "ksmbd: fix memory leak in parse_lease_state()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37962",
    "datePublished": "2025-05-20T16:01:54.612Z",
    "dateReserved": "2025-04-16T04:51:23.974Z",
    "dateUpdated": "2025-11-03T19:57:47.028Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37962\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-20T16:15:34.473\",\"lastModified\":\"2025-11-03T20:18:43.570\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nksmbd: fix memory leak in parse_lease_state()\\n\\nThe previous patch that added bounds check for create lease context\\nintroduced a memory leak. When the bounds check fails, the function\\nreturns NULL without freeing the previously allocated lease_ctx_info\\nstructure.\\n\\nThis patch fixes the issue by adding kfree(lreq) before returning NULL\\nin both boundary check cases.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: correcci\u00f3n de fuga de memoria en parse_lease_state(). El parche anterior, que a\u00f1ad\u00eda la comprobaci\u00f3n de los l\u00edmites para el contexto de creaci\u00f3n de arrendamiento, introduc\u00eda una fuga de memoria. Cuando la comprobaci\u00f3n de los l\u00edmites falla, la funci\u00f3n devuelve NULL sin liberar la estructura lease_ctx_info previamente asignada. Este parche corrige el problema a\u00f1adiendo kfree(lreq) antes de devolver NULL en ambos casos de comprobaci\u00f3n de los l\u00edmites.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…