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.

The stack protector is conditional on being linked with libc, so, if you
build with -nostdlib (as the kernel does), it is implicitly disabled.

-- 
Kees Cook                                            @debian.org


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