lkml.org 
[lkml]   [2004]   [Dec]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Coverity] Untrusted user data in kernel
Date
From
linux-os <linux-os@chaos.analogic.com> said:
> On Fri, 17 Dec 2004, Bill Davidsen wrote:

[...]

> > Are you saying that processes with capability don't make mistakes? This
> > isn't a bug related to untrusted users doing privileged operations,
> > it's a case of using unchecked user data.

> But isn't there always the possibility of "unchecked user data"?

Yes. But it should be kept to a minimum.

> I can, as root, do `cp /dev/zero /dev/mem` and have the most
> spectacular crask you've evet seen. I can even make my file-
> systems unrecoverable.

Right. And you can get rid of /dev/mem if you don't want to screw yourself
this way (which is well-known). The problem at hand is _not_ in this same
league.
--
Dr. Horst H. von Brand User #22616 counter.li.org
Departamento de Informatica Fono: +56 32 654431
Universidad Tecnica Federico Santa Maria +56 32 654239
Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513
-
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 14:08    [W:0.094 / U:0.152 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site