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CONFIG_X86_USER_SHADOW_STACK: X86 userspace shadow stack

General informations

The Linux kernel configuration item CONFIG_X86_USER_SHADOW_STACK:

Help text

Shadow stack protection is a hardware feature that detects function return address corruption. This helps mitigate ROP attacks. Applications must be enabled to use it, and old userspace does not get protection "for free".

CPUs supporting shadow stacks were first released in 2020.

See Documentation/arch/x86/shstk.rst for more information.

If unsure, say N.



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