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Re: Switch on compiler hardening defaults

On Mon, Oct 26, 2009 at 11:14:25AM +0100, Bastian Blank wrote:
> On Sun, Oct 25, 2009 at 11:55:25AM -0700, Kees Cook wrote:
> > I would like to propose enabling[1] the GCC hardening patches that Ubuntu
> > uses[2].
> How do they work? Do they also change the free-standing compiler or only
> the hosted one? There is a lot of software, which (I would say) missuse
> the hosted compiler to build non-userspace-code, including the Linux
> kernel.

It seems the kernel will not be happy if the stack protector is switched
on unconditionally:



     MTA SZTAKI Computer and Automation Research Institute
                Hungarian Academy of Sciences

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