lkml.org 
[lkml]   [2005]   [Jan]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: thoughts on kernel security issues
From
Date
> I respect you as a kernel developer as long as you're doing preemption
> and schedulers; but I honestly think PaX is the better technology, and I
> think it's important that the best security technology be in place.

the difference is not that big and only in tradeoffs. eg pax trades
virtual address space against protecting a rare occurance (eg where exec
shield wouldn't work because of a high executable mapping. That really
doesn't happen in normal programs)

> On a final note, isn't PaX the only technology trying to apply NX
> protections to kernel space?

Exec Shield does that too but only if your CPU has hardware assist for
NX (which all current AMD and most current intel cpus do).


-
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 14:09    [W:0.275 / U:0.408 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site