GHSA-G9PC-522F-QJJ8
Vulnerability from github – Published: 2026-09-25 15:31 – Updated: 2026-10-21 21:31In 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.
{
"affected": [],
"aliases": [
"CVE-2026-100072"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-25T14:17:13Z",
"severity": "HIGH"
},
"details": "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.",
"id": "GHSA-g9pc-522f-qjj8",
"modified": "2026-10-21T21:31:50Z",
"published": "2026-09-25T15:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100072"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/527a497fb2ef77a95170eefe2007e2c4c957bd2c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a75e5de593ef158feb17989bff7730c5a3d82503"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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Nomenclature
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Vulnerability timeline
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