cve-2024-44992
Vulnerability from cvelistv5
Published
2024-09-04 19:54
Modified
2024-12-19 09:19
Severity ?
Summary
smb/client: avoid possible NULL dereference in cifs_free_subrequest()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/74c2ab6d653b4c2354df65a7f7f2df1925a40a51Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fead60a6d5f84b472b928502a42c419253afe6c1Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

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              "content": {
                "id": "CVE-2024-44992",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-04T20:19:34.019685Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-09-04T20:19:53.480Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.10"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: avoid possible NULL dereference in cifs_free_subrequest()\n\nClang static checker (scan-build) warning:\n\tcifsglob.h:line 890, column 3\n\tAccess to field \u0027ops\u0027 results in a dereference of a null pointer.\n\nCommit 519be989717c (\"cifs: Add a tracepoint to track credits involved in\nR/W requests\") adds a check for \u0027rdata-\u003eserver\u0027, and let clang throw this\nwarning about NULL dereference.\n\nWhen \u0027rdata-\u003ecredits.value != 0 \u0026\u0026 rdata-\u003eserver == NULL\u0027 happens,\nadd_credits_and_wake_if() will call rdata-\u003eserver-\u003eops-\u003eadd_credits().\nThis will cause NULL dereference problem. Add a check for \u0027rdata-\u003eserver\u0027\nto avoid NULL dereference."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:19:48.405Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/fead60a6d5f84b472b928502a42c419253afe6c1"
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        {
          "url": "https://git.kernel.org/stable/c/74c2ab6d653b4c2354df65a7f7f2df1925a40a51"
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      ],
      "title": "smb/client: avoid possible NULL dereference in cifs_free_subrequest()",
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-44992",
    "datePublished": "2024-09-04T19:54:38.878Z",
    "dateReserved": "2024-08-21T05:34:56.671Z",
    "dateUpdated": "2024-12-19T09:19:48.405Z",
    "state": "PUBLISHED"
  },
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  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-44992\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-09-04T20:15:08.207\",\"lastModified\":\"2024-09-06T16:29:28.963\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsmb/client: avoid possible NULL dereference in cifs_free_subrequest()\\n\\nClang static checker (scan-build) warning:\\n\\tcifsglob.h:line 890, column 3\\n\\tAccess to field \u0027ops\u0027 results in a dereference of a null pointer.\\n\\nCommit 519be989717c (\\\"cifs: Add a tracepoint to track credits involved in\\nR/W requests\\\") adds a check for \u0027rdata-\u003eserver\u0027, and let clang throw this\\nwarning about NULL dereference.\\n\\nWhen \u0027rdata-\u003ecredits.value != 0 \u0026\u0026 rdata-\u003eserver == NULL\u0027 happens,\\nadd_credits_and_wake_if() will call rdata-\u003eserver-\u003eops-\u003eadd_credits().\\nThis will cause NULL dereference problem. Add a check for \u0027rdata-\u003eserver\u0027\\nto avoid NULL dereference.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb/client: evitar posible desreferencia NULL en cifs_free_subrequest() Advertencia del verificador est\u00e1tico de Clang (scan-build): cifsglob.h:l\u00ednea 890, columna 3 El acceso al campo \u0027ops\u0027 da como resultado una desreferencia de un puntero nulo. El commit 519be989717c (\\\"cifs: Agregar un punto de seguimiento para rastrear cr\u00e9ditos involucrados en solicitudes R/W\\\") agrega una verificaci\u00f3n para \u0027rdata-\u0026gt;server\u0027 y permite que clang lance esta advertencia sobre la desreferencia NULL. Cuando sucede \u0027rdata-\u0026gt;credits.value != 0 \u0026amp;\u0026amp; rdata-\u0026gt;server == NULL\u0027, add_credits_and_wake_if() llamar\u00e1 a rdata-\u0026gt;server-\u0026gt;ops-\u0026gt;add_credits(). Esto causar\u00e1 un problema de desreferencia NULL. Agregue una verificaci\u00f3n para \u0027rdata-\u0026gt;server\u0027 para evitar la desreferencia NULL.\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.10\",\"versionEndExcluding\":\"6.10.7\",\"matchCriteriaId\":\"E55C1263-DF43-41EF-8DA8-2BA68DF4FFFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8B3CE743-2126-47A3-8B7C-822B502CF119\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4DEB27E7-30AA-45CC-8934-B89263EF3551\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0005AEF-856E-47EB-BFE4-90C46899394D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/74c2ab6d653b4c2354df65a7f7f2df1925a40a51\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fead60a6d5f84b472b928502a42c419253afe6c1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
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