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Component LEGACY_VSYSCALL_EMULATE

Component Type: kbuild config

Description: Full emulation

More info: The kernel traps and emulates calls into the fixed vsyscall address mapping. This makes the mapping non-executable, but it still contains readable known contents, which could be used in certain rare security vulnerability exploits. This configuration is recommended when using legacy userspace that still uses vsyscalls along with legacy binary instrumentation tools that require code to be readable. An example of this type of legacy userspace is running Pin on an old binary that still uses vsyscalls.

Build project: Kconfig (Linux kconfig) (Path: arch\x86\Kconfig )

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