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Component KUSER_HELPERS

Component KUSER_HELPERS

Component Type: kbuild config

Description: Enable kuser helpers in vector page

Build project: Kconfig (Linux kconfig) (Path: arch\arm\mm\Kconfig )

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Component KUSER_HELPERS

Component Type: kbuild config

Description: Enable kuser helpers page for 32-bit applications

More info: Warning: disabling this option may break 32-bit user programs. Provide kuser helpers to compat tasks. The kernel provides helper code to userspace in read only form at a fixed location to allow userspace to be independent of the CPU type fitted to the system. This permits binaries to be run on ARMv4 through to ARMv8 without modification. See Documentation/arm/kernel_user_helpers.rst for details. However, the fixed address nature of these helpers can be used by ROP (return orientated programming) authors when creating exploits. If all of the binaries and libraries which run on your platform are built specifically for your platform, and make no use of these helpers, then you can turn this option off to hinder such exploits. However, in that case, if a binary or library relying on those helpers is run, it will not function correctly. Say N here only if you are absolutely certain that you do not need these helpers; otherwise, the safe option is to say Y.

Build project: Kconfig (Linux kconfig) (Path: arch\arm64\Kconfig )

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