Vulnerability-Lookup

GHSA-WC6C-368Q-8VVV

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-03-18 18:31

Details

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

smb/server: fix refcount leak in smb2_open()

When ksmbd_vfs_getattr() fails, the reference count of ksmbd_file must be released.

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-2025-71223"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T17:15:54Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix refcount leak in smb2_open()\n\nWhen ksmbd_vfs_getattr() fails, the reference count of ksmbd_file\nmust be released.",
  "id": "GHSA-wc6c-368q-8vvv",
  "modified": "2026-03-18T18:31:11Z",
  "published": "2026-02-14T18:30:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71223"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2456fde2b137703328f1695f60c68fe488d17e36"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39ca11ff158c98fb092176f06047628c54bcf7a1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4665e52bde3b1f8f442895ce7d88fa62a43e48c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f416c556997aa56ec4384c6b6efd6a0e6ac70aa7"
    }
  ],
  "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-2025-71223 (GCVE-0-2025-71223)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-02-16 08:58

Title

smb/server: fix refcount leak in smb2_open()

Summary

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix refcount leak in smb2_open() When ksmbd_vfs_getattr() fails, the reference count of ksmbd_file must be released.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2456fde2b13770332…
	https://git.kernel.org/stable/c/39ca11ff158c98fb0…
	https://git.kernel.org/stable/c/4665e52bde3b1f8f4…
	https://git.kernel.org/stable/c/f416c556997aa56ec…

Impacted products

Vendor

Product

Version

Linux

Affected: 8df4bcdb0a4232192b2445256c39b787d58ef14d , < 2456fde2b137703328f1695f60c68fe488d17e36 (git)
Affected: c8efcc786146a951091588e5fa7e3c754850cb3c , < 39ca11ff158c98fb092176f06047628c54bcf7a1 (git)
Affected: c8efcc786146a951091588e5fa7e3c754850cb3c , < 4665e52bde3b1f8f442895ce7d88fa62a43e48c4 (git)
Affected: c8efcc786146a951091588e5fa7e3c754850cb3c , < f416c556997aa56ec4384c6b6efd6a0e6ac70aa7 (git)

Linux

Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.6.124 , ≤ 6.6.* (semver)
Unaffected: 6.12.70 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/smb2pdu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2456fde2b137703328f1695f60c68fe488d17e36",
              "status": "affected",
              "version": "8df4bcdb0a4232192b2445256c39b787d58ef14d",
              "versionType": "git"
            },
            {
              "lessThan": "39ca11ff158c98fb092176f06047628c54bcf7a1",
              "status": "affected",
              "version": "c8efcc786146a951091588e5fa7e3c754850cb3c",
              "versionType": "git"
            },
            {
              "lessThan": "4665e52bde3b1f8f442895ce7d88fa62a43e48c4",
              "status": "affected",
              "version": "c8efcc786146a951091588e5fa7e3c754850cb3c",
              "versionType": "git"
            },
            {
              "lessThan": "f416c556997aa56ec4384c6b6efd6a0e6ac70aa7",
              "status": "affected",
              "version": "c8efcc786146a951091588e5fa7e3c754850cb3c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/smb2pdu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.124",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.70",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.124",
                  "versionStartIncluding": "6.6.32",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.70",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix refcount leak in smb2_open()\n\nWhen ksmbd_vfs_getattr() fails, the reference count of ksmbd_file\nmust be released."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-16T08:58:45.872Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2456fde2b137703328f1695f60c68fe488d17e36"
        },
        {
          "url": "https://git.kernel.org/stable/c/39ca11ff158c98fb092176f06047628c54bcf7a1"
        },
        {
          "url": "https://git.kernel.org/stable/c/4665e52bde3b1f8f442895ce7d88fa62a43e48c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/f416c556997aa56ec4384c6b6efd6a0e6ac70aa7"
        }
      ],
      "title": "smb/server: fix refcount leak in smb2_open()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71223",
    "datePublished": "2026-02-14T16:27:06.060Z",
    "dateReserved": "2026-02-14T16:26:02.969Z",
    "dateUpdated": "2026-02-16T08:58:45.872Z",
    "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-WC6C-368Q-8VVV

CVE-2025-71223 (GCVE-0-2025-71223)

Tags

Sightings

Nomenclature