fkie_nvd - fkie_cve-2025-37899

fkie_cve-2025-37899

Vulnerability from fkie_nvd

Published

2025-05-20 16:15

Modified

2025-05-24 19:15

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess->user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for that connection could be in the smb2_sess_setup function which makes use of sess->user.

References

▼	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f
	af854a3a-2127-422b-91ae-364da2661108	https://news.ycombinator.com/item?id=44081338
	af854a3a-2127-422b-91ae-364da2661108	https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in session logoff\n\nThe sess-\u003euser object can currently be in use by another thread, for\nexample if another connection has sent a session setup request to\nbind to the session being free\u0027d. The handler for that connection could\nbe in the smb2_sess_setup function which makes use of sess-\u003euser."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: correcci\u00f3n del problema \"use-after-free\" al cerrar sesi\u00f3n. El objeto sess-\u0026gt;user puede estar siendo utilizado por otro hilo, por ejemplo, si otra conexi\u00f3n ha enviado una solicitud de configuraci\u00f3n de sesi\u00f3n para enlazarse a la sesi\u00f3n que se est\u00e1 liberando. El controlador de esa conexi\u00f3n podr\u00eda estar en la funci\u00f3n smb2_sess_setup, que utiliza sess-\u0026gt;user."
    }
  ],
  "id": "CVE-2025-37899",
  "lastModified": "2025-05-24T19:15:23.640",
  "metrics": {},
  "published": "2025-05-20T16:15:26.273",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://news.ycombinator.com/item?id=44081338"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-37899 (GCVE-0-2025-37899)

Vulnerability from cvelistv5

Published

2025-05-20 15:21

Modified

2025-05-26 05:23

Severity ?

Summary

References

▼	URL	Tags
	https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f
	https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43
	https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b

Impacted products

Vendor

Product

Version

▼

Linux

Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf

Linux

Version: 5.15

Show details on NVD website

JSON

To clipboard

{
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        "providerMetadata": {
          "dateUpdated": "2025-05-24T19:05:08.356Z",
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        "references": [
          {
            "url": "https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/"
          },
          {
            "url": "https://news.ycombinator.com/item?id=44081338"
          }
        ],
        "title": "CVE Program Container",
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    ],
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          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.28",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:23:18.609Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "url": "https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b"
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      "title": "ksmbd: fix use-after-free in session logoff",
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  "cveMetadata": {
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    "cveId": "CVE-2025-37899",
    "datePublished": "2025-05-20T15:21:34.782Z",
    "dateReserved": "2025-04-16T04:51:23.965Z",
    "dateUpdated": "2025-05-26T05:23:18.609Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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