1 files changed, 8 insertions, 1 deletions
diff --git a/cpukit/libcsupport/src/rtemscalloc.c b/cpukit/libcsupport/src/rtemscalloc.c
index 4e189e8367..836f1da64d 100644
--- a/cpukit/libcsupport/src/rtemscalloc.c
+++ b/cpukit/libcsupport/src/rtemscalloc.c
@@ -46,7 +46,14 @@ void *rtems_calloc( size_t nelem, size_t elsize )
   size_t  length;
   void   *p;
 
-  length = nelem * elsize;
+  if ( nelem == 0 ) {
+    length = 0;
+  } else if ( elsize > SIZE_MAX / nelem ) {
+    return NULL;
+  } else {
+    length = nelem * elsize;
+  }
+
   p = rtems_malloc( length );
   RTEMS_OBFUSCATE_VARIABLE( p );
   if ( RTEMS_PREDICT_FALSE( p == NULL ) ) {