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CONFIG_HARDEN_BRANCH_HISTORY: Harden Spectre style attacks against branch history

General informations

The Linux kernel configuration item CONFIG_HARDEN_BRANCH_HISTORY:

Help text

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

Hardware

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Navigation: Linux Kernel Driver DataBase - web LKDDB: main index - H index

Automatically generated (in year 2022). See also LKDDb sources on GitLab