On Wed, Jan 30, 2008 at 11:41:41AM +0200, Riku Voipio wrote: > On Tue, Jan 29, 2008 at 10:16:24PM +0100, Moritz Muehlenhoff wrote: > > In kernels that support text ASLR, programs compiled > > for PIE will gain full position randomization. > > For which architectures is text ASLR available? does it require > external kernel patches? PIE means considerable system overhead > and fatter binaries, especially for systems without large > caches.
I can only speak for the Linux kernels, but sitting in the planned -x86 git queue for mm, text ASLR was enabled[1] for x86 and x86_64. AFAIK, the similar RedHat and SuSE kernel patches also carry these changes only for x86 and x86_64. -Kees [1] http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-x86.git;a=history;f=arch/x86/kernel/sys_x86_64.c;hb=mm -- Kees Cook -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
