OTP-8549 Fix out of bounds write in erts_get_cpu_topology()

The runtime system crashed if fewer logical processors were found than
reported by sysconf( SC_NPROCESSORS_CONF).

1 files changed, 7 insertions, 7 deletions

diff --git a/erts/lib_src/common/erl_misc_utils.c b/erts/lib_src/common/erl_misc_utils.c
index 9c25d33a3c..f70db86960 100644
--- a/erts/lib_src/common/erl_misc_utils.c
+++ b/erts/lib_src/common/erl_misc_utils.c
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2006-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2006-2010. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
 
@@ -373,8 +373,8 @@ erts_get_cpu_topology(erts_cpu_info_t *cpuinfo,
 	return 0;
     memcpy((void *) topology,
 	   (void *) cpuinfo->topology,
-	   cpuinfo->configured*sizeof(erts_cpu_topology_t));
-    return cpuinfo->configured;
+	   cpuinfo->topology_size*sizeof(erts_cpu_topology_t));
+    return cpuinfo->topology_size;
 }
 
 int