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From the kernel documentation: > For reduced kernel memory fragmentation, slab caches can be > merged when they share the same size and other characteristics. > This carries a risk of kernel heap overflows being able to > overwrite objects from merged caches (and more easily control > cache layout), which makes such heap attacks easier to exploit > by attackers. By keeping caches unmerged, these kinds of exploits > can usually only damage objects in the same cache. [...] Thus, it is more sane to leave slab merging disabled. KSPP and ClipOS recommend this as well. 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.