CONFIG_RANDSTRUCT_PERFORMANCE: Limit randomization of structure layout to cache-lines

General informations

The Linux kernel configuration item CONFIG_RANDSTRUCT_PERFORMANCE:

• prompt: Limit randomization of structure layout to cache-lines
• type: bool
• depends on: CONFIG_GCC_PLUGINS
• defined in security/Kconfig.hardening
• found in Linux kernels: 5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

Randomization of sensitive kernel structures will make a best effort at restricting randomization to cacheline-sized groups of members. It will further not randomize bitfields in structures. This reduces the performance hit of RANDSTRUCT at the cost of weakened randomization.

Hardware

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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