svn commit: r247303 - stable/9/sys/ia64/ia64

[Marcel Moolenaar]

Author: marcel
Date: Tue Feb 26 03:46:35 2013
New Revision: 247303
URL: http://svnweb.freebsd.org/changeset/base/247303

Log:
  MFC r246882:
  Return EFAULT when the address is not a kernel virtual address.

Modified:
  stable/9/sys/ia64/ia64/mem.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/ia64/ia64/mem.c
==============================================================================
--- stable/9/sys/ia64/ia64/mem.c	Tue Feb 26 03:39:15 2013	(r247302)
+++ stable/9/sys/ia64/ia64/mem.c	Tue Feb 26 03:46:35 2013	(r247303)
@@ -128,6 +128,8 @@ kmemphys:
 			 */
 			addr = trunc_page(v);
 			eaddr = round_page(v + c);
+			if (addr < VM_MAXUSER_ADDRESS)
+				return (EFAULT);
 			for (; addr < eaddr; addr += PAGE_SIZE) {
 				if (pmap_kextract(addr) == 0)
 					return (EFAULT);