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From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Sat, 16 Feb 2013 21:46:28 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r246882 - head/sys/ia64/ia64
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Author: marcel
Date: Sat Feb 16 21:46:27 2013
New Revision: 246882
URL: http://svnweb.freebsd.org/changeset/base/246882

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

Modified:
  head/sys/ia64/ia64/mem.c

Modified: head/sys/ia64/ia64/mem.c
==============================================================================
--- head/sys/ia64/ia64/mem.c	Sat Feb 16 20:43:16 2013	(r246881)
+++ head/sys/ia64/ia64/mem.c	Sat Feb 16 21:46:27 2013	(r246882)
@@ -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);