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CONFIG_LEGACY_VSYSCALL_EMULATE: Emulate

General informations

The Linux kernel configuration item CONFIG_LEGACY_VSYSCALL_EMULATE:

Help text

The kernel traps and emulates calls into the fixed vsyscall address mapping. This makes the mapping non-executable, but it still contains known contents, which could be used in certain rare security vulnerability exploits. This configuration is recommended when userspace still uses the vsyscall area.

Hardware

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