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CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT: Randomize kernel stack offset on syscall entry

General informations

The Linux kernel configuration item CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT:

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The kernel stack offset can be randomized (after pt_regs) by roughly 5 bits of entropy, frustrating memory corruption attacks that depend on stack address determinism or cross-syscall address exposures. This feature is controlled by kernel boot param "randomize_kstack_offset=on/off", and this config chooses the default boot state.



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