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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | No solution exists | Oct 5, 2026 | Sep 25, 2026 |
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