Text relocations in kernel modules

[Richard Yao]

On 04/02/12 14:46, Peter Wemm wrote:
> Remember.. ASLR is a userland thing.  .ko files, which is what this
> thread is about, already use random address layout.  When you do a
> "kldload virtio.ko", you have no way to predict what address it will
> be loaded at.  And you don't even have access to the addresses.
> 
> Of course if you want to talk about ASLR and userland .so files then
> that's an entirely different thing.  But this thread is about your
> tools finding DT_TEXTREL in a .ko kernel file, not userland .so files.
> 

The PaX project's patches to the Linux kernel include kernel stack
randomization. The Gentoo Hardened project makes use of this in their
fork of the Linux kernel.

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