On Wed, Dec 07, 2011 at 04:25:15PM +0000, Kevin Chadwick wrote: > On Wed, 7 Dec 2011 13:45:56 -0200 > Daniel Bolgheroni wrote: > > > Modern x86 processors support PAE (Physical Address Extension) in which > > a 32-bit processor can address more than 32-bit physical addresses. But > > not without the OS supporting it. > > Wouldn't that make ROP attacks more difficult too? Though I guess the > effort would be a waste of time when you can move to 64bit anyway.
I don't think so. The PAE-aware kernel will manage/map this extra physical addresses, but as noted above, processes still only see 4 GB. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
