lkml.org 
[lkml]   [2001]   [Oct]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Security question: "Text file busy" overwriting executables but not shared libraries?
From
Date
le dim 14-10-2001 à 08:49, Eric W. Biederman a écrit :
> Also read-with-PAGE_COPY has some really interesting implications for the
> page out routines. Because anytime you start the page out you have to
> copy the page. Not exactly when you want to increase the memory presure.
> And not at all suitable for shared libraries.

I didn't understood very well why you would want to swap out a page
marked PAGE_COPY ? Doesn't it make sense to special-case it and just
leave it "in the file", as long as it's untouched ?

Xav

-
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 13:08    [W:0.060 / U:0.848 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site