modules_disabled

file: /proc/sys/kernel/modules_disabled
variable: kernel.modules_disabled
Official reference

A toggle value indicating if modules are allowed to be loaded in an otherwise modular kernel. This toggle defaults to off (0), but can be set true (1). Once true, modules can be neither loaded nor unloaded, and the toggle cannot be set back to false. Generally used with the “kexec_load_disabled” toggle.

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