Re: Re: [PATCH]: non-readable binaries - binfmt_misc 2.6.0-test4

[insecure]

On Wednesday 03 September 2003 10:16, Zach, Yoav wrote:
> --- Linus Torvalds <torvalds@xxxxxxxx> wrote:
> > I don't like the security issues here. Sure, you
> > "trust" the interpreter,
> > and clearly only root can set the flag, but to me
> > that just makes me
> > wonder why the interpreter itself can't be a simple
> > suid wrapper that does
> > the mapping rather than having it done in kernel
> > space..
>
> If the binary resides on a NFS drive ( which is a very common practice )
> then the suid-wrapper solution will not work because root permissions
> are squashed on the remote drive.

This is a NFS promlem. Do not work around it by adding crap elsewhere.
NFS has to get a decent user auth/crypto features.
I did not try it yet, but NFSv4 will address that.
--
vda
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