CVE-2026-100072

High

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedSep 25, 2026
First seenSep 25, 2026

How to fix

Update
  • linux linux_kernel7.2.6 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel4.6 ≤ v < 7.2.67.2.6
microsoft azl3_kernel_6.6.157.1-1No range specified—
microsoft azl3_kernel_6.6.159.1-1No range specified—

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