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To quote from the kernel documentation: > If you say Y here, the layouts of structures that are entirely > function pointers (and have not been manually annotated with > __no_randomize_layout), or structures that have been explicitly > marked with __randomize_layout, will be randomized at compile-time. > This can introduce the requirement of an additional information > exposure vulnerability for exploits targeting these structure > types. > > Enabling this feature will introduce some performance impact, > slightly increase memory usage, and prevent the use of forensic > tools like Volatility against the system (unless the kernel > source tree isn't cleaned after kernel installation). > > The seed used for compilation is located at > scripts/gcc-plgins/randomize_layout_seed.h. It remains after > a make clean to allow for external modules to be compiled with > the existing seed and will be removed by a make mrproper or > make distclean. > > Note that the implementation requires gcc 4.7 or newer. Signed-off-by: Peter Müller <peter.mueller@ipfire.org> Acked-by: Michael Tremer <michael.tremer@ipfire.org>
IPFire 2.x - The Open Source Firewall
What is IPFire?
IPFire is a hardened, versatile, state-of-the-art Open Source firewall based on Linux. Its ease of use, high performance in any scenario and extensibility make it usable for everyone. For a full list of features have a look here.
This repository contains the source code of IPFire 2.x which is used to build the whole distribution from scratch, since IPFire is not based on any other distribution.
Where can I get IPFire?
Just head over to https://www.ipfire.org/download
How do I use this software?
We have a long and detailed wiki located here which should answers most of your questions.
But I have some questions left. Where can I get support?
You can ask your question at our community located here. A complete list of our support channels can be found here.
How can I contribute?
We have another document for this. Please look here.