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CONFIG_INIT_STACK_ALL_ZERO: zero-init everything on the stack (strongest and safest)

General informations

The Linux kernel configuration item CONFIG_INIT_STACK_ALL_ZERO:

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Initializes everything on the stack with a zero value. This is intended to eliminate all classes of uninitialized stack variable exploits and information exposures, even variables that were warned to have been left uninitialized.

Zero initialization provides safe defaults for strings, pointers, indices and sizes, and is therefore more suitable as a security mitigation measure.



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