CVE-2024-50152
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2024-12-19 09:34
Severity ?
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 Version: 6.8
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2ops.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b1813c220b76f60b1727984794377c4aa849d4c1",
              "status": "affected",
              "version": "433042a91f9373241307725b52de573933ffedbf",
              "versionType": "git"
            },
            {
              "lessThan": "c9f758ecf2562dfdd4adf12c22921b5de8366123",
              "status": "affected",
              "version": "4f1fffa2376922f3d1d506e49c0fd445b023a28e",
              "versionType": "git"
            },
            {
              "lessThan": "19ebc1e6cab334a8193398d4152deb76019b5d34",
              "status": "affected",
              "version": "4f1fffa2376922f3d1d506e49c0fd445b023a28e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2ops.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:34:14.052Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123"
        },
        {
          "url": "https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34"
        }
      ],
      "title": "smb: client: fix possible double free in smb2_set_ea()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50152",
    "datePublished": "2024-11-07T09:31:28.733Z",
    "dateReserved": "2024-10-21T19:36:19.959Z",
    "dateUpdated": "2024-12-19T09:34:14.052Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50152\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:06.850\",\"lastModified\":\"2024-11-19T02:16:17.787\",\"vulnStatus\":\"Modified\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.32\",\"versionEndExcluding\":\"6.6.59\",\"matchCriteriaId\":\"15752D93-7E64-45C3-AA2D-6A544F5E615F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.8\",\"versionEndExcluding\":\"6.11.6\",\"matchCriteriaId\":\"2CAA29A6-36B4-4C90-A862-A816F65153DB\"},{\"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\"}]}]}],\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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