svn commit: r265435 - stable/10/sys/vm

[Konstantin Belousov]

Author: kib
Date: Tue May  6 12:20:07 2014
New Revision: 265435
URL: http://svnweb.freebsd.org/changeset/base/265435

Log:
  MFC r265100:
  Fix the comparision for the end of range in vm_phys_fictitious_reg_range().

Modified:
  stable/10/sys/vm/vm_phys.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/vm/vm_phys.c
==============================================================================
--- stable/10/sys/vm/vm_phys.c	Tue May  6 12:15:05 2014	(r265434)
+++ stable/10/sys/vm/vm_phys.c	Tue May  6 12:20:07 2014	(r265435)
@@ -552,7 +552,9 @@ vm_phys_fictitious_reg_range(vm_paddr_t 
 
 #ifdef VM_PHYSSEG_DENSE
 	pi = atop(start);
-	if (pi >= first_page && atop(end) < vm_page_array_size) {
+	if (pi >= first_page && pi < vm_page_array_size + first_page) {
+		if (atop(end) >= vm_page_array_size + first_page)
+			return (EINVAL);
 		fp = &vm_page_array[pi - first_page];
 		malloced = FALSE;
 	} else