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CONFIG_ACPI_CUSTOM_METHOD: Allow ACPI methods to be inserted/replaced at run time

General informations

The Linux kernel configuration item CONFIG_ACPI_CUSTOM_METHOD:

Help text

This debug facility allows ACPI AML methods to be inserted and/or replaced without rebooting the system. For details refer to: Documentation/firmware-guide/acpi/method-customizing.rst.

NOTE: This option is security sensitive, because it allows arbitrary kernel memory to be written to by root (uid=0) users, allowing them to bypass certain security measures (e.g. if root is not allowed to load additional kernel modules after boot, this feature may be used to override that restriction).



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