cve-2024-50197
Vulnerability from cvelistv5
Published
2024-11-08 05:54
Modified
2024-12-19 09:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: pinctrl: intel: platform: fix error path in device_for_each_child_node() The device_for_each_child_node() loop requires calls to fwnode_handle_put() upon early returns to decrement the refcount of the child node and avoid leaking memory if that error path is triggered. There is one early returns within that loop in intel_platform_pinctrl_prepare_community(), but fwnode_handle_put() is missing. Instead of adding the missing call, the scoped version of the loop can be used to simplify the code and avoid mistakes in the future if new early returns are added, as the child node is only used for parsing, and it is never assigned.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16a6d2e685e8f9a2f51dd5a363d3f97fcad35e22Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be3f7b9f995a6c2ee02767a0319929a2a98adf69Patch
Impacted products
Vendor Product Version
Linux Linux Version: c5860e4a2737a8b29dc426c800d01c5be6aad811
Version: c5860e4a2737a8b29dc426c800d01c5be6aad811
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   Linux Linux Version: 6.8
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/intel/pinctrl-intel-platform.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "be3f7b9f995a6c2ee02767a0319929a2a98adf69",
              "status": "affected",
              "version": "c5860e4a2737a8b29dc426c800d01c5be6aad811",
              "versionType": "git"
            },
            {
              "lessThan": "16a6d2e685e8f9a2f51dd5a363d3f97fcad35e22",
              "status": "affected",
              "version": "c5860e4a2737a8b29dc426c800d01c5be6aad811",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/intel/pinctrl-intel-platform.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": "6.11.*",
              "status": "unaffected",
              "version": "6.11.5",
              "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\npinctrl: intel: platform: fix error path in device_for_each_child_node()\n\nThe device_for_each_child_node() loop requires calls to\nfwnode_handle_put() upon early returns to decrement the refcount of\nthe child node and avoid leaking memory if that error path is triggered.\n\nThere is one early returns within that loop in\nintel_platform_pinctrl_prepare_community(), but fwnode_handle_put() is\nmissing.\n\nInstead of adding the missing call, the scoped version of the loop can\nbe used to simplify the code and avoid mistakes in the future if new\nearly returns are added, as the child node is only used for parsing, and\nit is never assigned."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:35:15.740Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/be3f7b9f995a6c2ee02767a0319929a2a98adf69"
        },
        {
          "url": "https://git.kernel.org/stable/c/16a6d2e685e8f9a2f51dd5a363d3f97fcad35e22"
        }
      ],
      "title": "pinctrl: intel: platform: fix error path in device_for_each_child_node()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50197",
    "datePublished": "2024-11-08T05:54:11.739Z",
    "dateReserved": "2024-10-21T19:36:19.968Z",
    "dateUpdated": "2024-12-19T09:35:15.740Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50197\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-08T06:15:16.407\",\"lastModified\":\"2024-11-29T20:33:23.700\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npinctrl: intel: platform: fix error path in device_for_each_child_node()\\n\\nThe device_for_each_child_node() loop requires calls to\\nfwnode_handle_put() upon early returns to decrement the refcount of\\nthe child node and avoid leaking memory if that error path is triggered.\\n\\nThere is one early returns within that loop in\\nintel_platform_pinctrl_prepare_community(), but fwnode_handle_put() is\\nmissing.\\n\\nInstead of adding the missing call, the scoped version of the loop can\\nbe used to simplify the code and avoid mistakes in the future if new\\nearly returns are added, as the child node is only used for parsing, and\\nit is never assigned.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pinctrl: intel: platform: fix error path in device_for_each_child_node() El bucle device_for_each_child_node() requiere llamadas a fwnode_handle_put() en retornos tempranos para decrementar el refcount del nodo secundario y evitar fugas de memoria si se activa esa ruta de error. Hay un retorno temprano dentro de ese bucle en intel_platform_pinctrl_prepare_community(), pero falta fwnode_handle_put(). En lugar de agregar la llamada faltante, la versi\u00f3n con \u00e1mbito del bucle se puede usar para simplificar el c\u00f3digo y evitar errores en el futuro si se agregan nuevos retornos tempranos, ya que el nodo secundario solo se usa para analizar y nunca se asigna.\"}],\"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-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.8\",\"versionEndExcluding\":\"6.11.5\",\"matchCriteriaId\":\"DEA3578E-BB87-4486-90C9-D07BD36965C5\"},{\"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/16a6d2e685e8f9a2f51dd5a363d3f97fcad35e22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be3f7b9f995a6c2ee02767a0319929a2a98adf69\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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