Per the specification for putenv (http://pubs.opengroup.org/onlinepubs/009604599/functions/putenv.html) the string given to putenv becomes part of the environment. The string must not be changed or freed.

cmr:v1.7

This commit was SVN r27578.

opal/runtime/opal_info_support.c

@@ -272,7 +272,6 @@ int opal_info_register_components(opal_pointer_array_t *mca_types,
             /* can't manipulate it directly, so make a copy first */
             asprintf(&target, "%s=", env);
             putenv(target);
-            free(target);
         }
         free(env);
     }

orte/runtime/orte_info_support.c

@@ -108,7 +108,6 @@ int orte_info_register_components(opal_pointer_array_t *mca_types,
             /* can't manipulate it directly, so make a copy first */
             asprintf(&target, "%s=", env);
             putenv(target);
-            free(target);
         }
         free(env);
     }