CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY: Mitigate Spectre style attacks against branch history

General informations

The Linux kernel configuration item CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY:

• prompt: Mitigate Spectre style attacks against branch history
• type: bool
• depends on: CONFIG_EXPERT
• defined in arch/arm64/Kconfig
• found in Linux kernels: 5.17–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

Speculation attacks against some high-performance processors can make use of branch history to influence future speculation. When taking an exception from user-space, a sequence of branches or a firmware call overwrites the branch history.

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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