--- IO-AIO/AIO.xs	2018/01/06 01:04:42	1.251
+++ IO-AIO/AIO.xs	2018/01/06 02:11:10	1.252
@@ -701,7 +701,13 @@
                       sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
                     }
                   else
-                    SvCUR_set (req->sv2, req->result);
+                    {
+                      SvCUR_set (req->sv2, req->result);
+                      *SvEND (req->sv2) = 0;
+                      SvPOK_only (req->sv2);
+                    }
+
+                  SvSETMAGIC (req->sv2);
                 }
 
               PUSHs (sv_result);
@@ -1417,7 +1423,7 @@
           {
             /* read: check type and grow scalar as necessary */
             if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
-              svptr = sv_grow (data, len + dataoffset);
+              svptr = sv_grow (data, len + dataoffset + 1);
             else if (SvCUR (data) < len + dataoffset)
               croak ("length + dataoffset outside of scalar, and cannot grow");
           }
@@ -1821,7 +1827,7 @@
         if (length) /* known length, directly read into scalar */
           {
             if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
-              svptr = sv_grow (data, length);
+              svptr = sv_grow (data, length + 1);
             else if (SvCUR (data) < length)
               croak ("length outside of scalar, and cannot grow");
             else