lkml.org 
[lkml]   [2004]   [Aug]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] [4/4] /dev/random: Remove RNDGETPOOL ioctl
On Fri, Aug 20, 2004 at 12:57:23AM -0400, Theodore Ts'o wrote:
>
> Recently, someone has kvetched that RNDGETPOOL is a "security
> vulnerability". Never mind that it is superuser only, and with
> superuser privs you could load a nasty kernel module, or read the
> entropy pool out of /dev/mem directly, but they are nevertheless still
> spreading FUD.

While such concerns are a bit exaggerated, the ioctl isn't in fact
very useful: it only gets one of the pools. In other words, it's been
obsolete even for debugging purposes since we went to two pools.

The pool resize ioctl is still racy in a painful way and ought to be
axed as well.

--
Mathematics is the supreme nostalgia of our time.
-
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 14:05    [W:0.041 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site