Re: [Xen-devel] [PATCH v3 00/11] xen: Initial kexec/kdump implementation

[H. Peter Anvin]

On 01/11/2013 01:08 PM, Vivek Goyal wrote:
> > A signed /sbin/kexec would realistically have to be statically linked,
> > at least in the short term; otherwise the libraries and ld.so would need
> > verification as well.
>
> Yes. That's the expectation. Sign only statically linked exeutables which
> don't do any of dlopen() stuff either.
>
> In fact in the patch, I fail the exec() if signed executable has
> interpreter.

As I said, though (and possibly not for kexec, that depends): in the 
long term we probably want a way to be able to sign all kinds binaries 
in the system.

	-hpa


--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/