lkml.org 
[lkml]   [2003]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Re: [PATCH]: non-readable binaries - binfmt_misc 2.6.0-test4
Date
On Wednesday 03 September 2003 10:16, Zach, Yoav wrote:
> --- Linus Torvalds <torvalds@osdl.org> 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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:48    [W:0.226 / U:0.152 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site