CVE-2026-100072 (GCVE-0-2026-100072)
Vulnerability from cvelistv5
Published
2026-09-25 13:06
Modified
2026-10-21 12:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ACPI: platform: Use acpi_bus_get_primary_device() The acpi_get_first_physical_node() usage in acpi_platform_fill_resource() and acpi_create_platform_device() is generally unsafe because in theory the device returned by it may be freed at any time [1]. It is also inefficient because acpi_get_first_physical_node() is called multiple times for the same argument which can be avoided. Address these issues by using acpi_bus_get_primary_device() instead of acpi_get_first_physical_node() and adjusting the code to call it just once at the beginning of and acpi_create_platform_device() and drop the device reference acquired by it upon the return from that function.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3b95bd160547f56a68aeb972c33ae9511e7a8380
Version: 3b95bd160547f56a68aeb972c33ae9511e7a8380
Version: 3b95bd160547f56a68aeb972c33ae9511e7a8380
Version: 3b95bd160547f56a68aeb972c33ae9511e7a8380
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/acpi_platform.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a75e5de593ef158feb17989bff7730c5a3d82503",
              "status": "affected",
              "version": "3b95bd160547f56a68aeb972c33ae9511e7a8380",
              "versionType": "git"
            },
            {
              "lessThan": "527a497fb2ef77a95170eefe2007e2c4c957bd2c",
              "status": "affected",
              "version": "3b95bd160547f56a68aeb972c33ae9511e7a8380",
              "versionType": "git"
            },
            {
              "lessThan": "c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd",
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              "version": "3b95bd160547f56a68aeb972c33ae9511e7a8380",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/acpi_platform.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.6"
            },
            {
              "lessThan": "4.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "4.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.114",
                  "versionStartIncluding": "4.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "4.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "4.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: platform: Use acpi_bus_get_primary_device()\n\nThe acpi_get_first_physical_node() usage in acpi_platform_fill_resource()\nand acpi_create_platform_device() is generally unsafe because in theory\nthe device returned by it may be freed at any time [1].\n\nIt is also inefficient because acpi_get_first_physical_node() is called\nmultiple times for the same argument which can be avoided.\n\nAddress these issues by using acpi_bus_get_primary_device() instead of\nacpi_get_first_physical_node() and adjusting the code to call it just\nonce at the beginning of and acpi_create_platform_device() and drop\nthe device reference acquired by it upon the return from that function."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:38:45.183Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a75e5de593ef158feb17989bff7730c5a3d82503"
        },
        {
          "url": "https://git.kernel.org/stable/c/527a497fb2ef77a95170eefe2007e2c4c957bd2c"
        },
        {
          "url": "https://git.kernel.org/stable/c/c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd"
        }
      ],
      "title": "ACPI: platform: Use acpi_bus_get_primary_device()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-100072",
    "datePublished": "2026-09-25T13:06:45.579Z",
    "dateReserved": "2026-09-25T10:25:14.456Z",
    "dateUpdated": "2026-10-21T12:38:45.183Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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