CVE WatchOct 21, 2026

CVE-2026-100072

In the Linux kernel, the following vulnerability has been resolved: ACPI: platform: Use acpi_bus_get_primary_device() The acpi_get_first_p

CVSS

7.8

High

EPSS

0.1%

KEV

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Exploit Today

0-100

Published: Sep 25, 2026 · Last modified: Oct 21, 2026 · CWE-416

EPSS · 30d

0.1%EPSS · 30 days0.1%

2026-09-262026-10-23

Technical description

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.

Official references

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