Re: [PATCH net-next] modules: allow modprobe load regular elf binaries

From: David Miller
Date: Fri Mar 09 2018 - 13:55:59 EST


From: Alexei Starovoitov <ast@xxxxxx>
Date: Fri, 9 Mar 2018 10:50:49 -0800

> On 3/9/18 10:23 AM, Andy Lutomirski wrote:
>> It might not be totally crazy to back it by tmpfs.
>
> interesting. how do you propose to do it?
> Something like:
> - create /umh_module_tempxxx dir
> - mount tmpfs there
> - copy elf into it and exec it?

I think the idea is that it's an internal tmpfs mount that only
the kernel has access too.

And I don't think that even hurts your debuggability concerns. The
user can just attach using the foo.ko file in the actual filesystem.