fkie_cve-2024-50152
Vulnerability from fkie_nvd
Published
2024-11-07 10:15
Modified
2024-11-19 02:16
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: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 | kfree(ea); | ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "15752D93-7E64-45C3-AA2D-6A544F5E615F",
              "versionEndExcluding": "6.6.59",
              "versionStartIncluding": "6.6.32",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2CAA29A6-36B4-4C90-A862-A816F65153DB",
              "versionEndExcluding": "6.11.6",
              "versionStartIncluding": "6.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix possible double free in smb2_set_ea()\n\nClang static checker(scan-build) warning\uff1a\nfs/smb/client/smb2ops.c:1304:2: Attempt to free released memory.\n 1304 |         kfree(ea);\n      |         ^~~~~~~~~\n\nThere is a double free in such case:\n\u0027ea is initialized to NULL\u0027 -\u003e \u0027first successful memory allocation for\nea\u0027 -\u003e \u0027something failed, goto sea_exit\u0027 -\u003e \u0027first memory release for ea\u0027\n-\u003e \u0027goto replay_again\u0027 -\u003e \u0027second goto sea_exit before allocate memory\nfor ea\u0027 -\u003e \u0027second memory release for ea resulted in double free\u0027.\n\nRe-initialie \u0027ea\u0027 to NULL near to the replay_again label, it can fix this\ndouble free problem."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: se corrige una posible doble liberaci\u00f3n en smb2_set_ea() Advertencia del comprobador est\u00e1tico de Clang (scan-build): fs/smb/client/smb2ops.c:1304:2: Intento de liberar memoria liberada. 1304 | kfree(ea); | ^~~~~~~~~ Hay una doble liberaci\u00f3n en tal caso: \u0027ea se inicializa a NULL\u0027 -\u0026gt; \u0027primera asignaci\u00f3n de memoria exitosa para ea\u0027 -\u0026gt; \u0027algo fall\u00f3, goto sea_exit\u0027 -\u0026gt; \u0027primera liberaci\u00f3n de memoria para ea\u0027 -\u0026gt; \u0027goto replay_again\u0027 -\u0026gt; \u0027segundo goto sea_exit antes de asignar memoria para ea\u0027 -\u0026gt; \u0027la segunda liberaci\u00f3n de memoria para ea result\u00f3 en una doble liberaci\u00f3n\u0027. Reinicialice \u0027ea\u0027 a NULL cerca de la etiqueta replay_again, puede solucionar este problema de doble liberaci\u00f3n."
    }
  ],
  "id": "CVE-2024-50152",
  "lastModified": "2024-11-19T02:16:17.787",
  "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": "2024-11-07T10:15:06.850",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.