FKIE_CVE-2022-49938

Vulnerability from fkie_nvd - Published: 2025-06-18 11:15 - Updated: 2025-11-14 20:25
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect mismatches) in SMB2_negotiate(), after the request is sent, the checks would return -EIO when they should be rather setting rc = -EIO and jumping to neg_exit to free the response buffer from mempool.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/27893dfc1285f80f80f46b3b8c95f5d15d2e66d0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38a6b469bf22f153282fbe7d702a24e9eb43f50ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix small mempool leak in SMB2_negotiate()\n\nIn some cases of failure (dialect mismatches) in SMB2_negotiate(), after\nthe request is sent, the checks would return -EIO when they should be\nrather setting rc = -EIO and jumping to neg_exit to free the response\nbuffer from mempool."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: corrige una peque\u00f1a p\u00e9rdida de mempool en SMB2_negotiate() En algunos casos de falla (desajustes de dialecto) en SMB2_negotiate(), despu\u00e9s de enviar la solicitud, las verificaciones devolver\u00edan -EIO cuando deber\u00edan establecer rc = -EIO y saltar a neg_exit para liberar el b\u00fafer de respuesta de mempool."
    }
  ],
  "id": "CVE-2022-49938",
  "lastModified": "2025-11-14T20:25:43.180",
  "metrics": {
    "cvssMetricV31": [
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        "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-06-18T11:15:20.683",
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-401"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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