Re: [PATCH 0/3] ELF executable signing and verification

From: Vivek Goyal
Date: Tue Jan 15 2013 - 18:15:22 EST


On Tue, Jan 15, 2013 at 11:27:12PM +0100, richard -rw- weinberger wrote:
> On Tue, Jan 15, 2013 at 10:34 PM, Vivek Goyal <vgoyal@xxxxxxxxxx> wrote:
> > Upon exec(), we determine if executable is signed. If it is, then locks
> > down the pages in memory (using MAP_LOCKED) and verfies the signature.
> > If signature does not match, process is killed. Unsigned processes
> > don't get affected at all.
>
> Also ptrace() should be disallowed on such a process created from a signed ELF.

Yes, that I have listed in TODO. We need to disable ptrace for signed
processes or make sure only signed process can trace it.

Thanks
Vivek
--
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/