1 files changed, 9 insertions, 1 deletions
diff --git a/libgfortran/m4/reshape.m4 b/libgfortran/m4/reshape.m4
index 4052a5e..d1486f3 100644
--- a/libgfortran/m4/reshape.m4
+++ b/libgfortran/m4/reshape.m4
@@ -101,6 +101,8 @@ reshape_'rtype_ccode` ('rtype` * const restrict ret,
 
   if (ret->data == NULL)
     {
+      index_type alloc_size;
+
       rs = 1;
       for (n = 0; n < rdim; n++)
 	{
@@ -111,7 +113,13 @@ reshape_'rtype_ccode` ('rtype` * const restrict ret,
 	  rs *= rex;
 	}
       ret->offset = 0;
-      ret->data = internal_malloc_size ( rs * sizeof ('rtype_name`));
+
+      if (unlikely (rs < 1))
+        alloc_size = 1;
+      else
+        alloc_size = rs * sizeof ('rtype_name`);
+
+      ret->data = internal_malloc_size (alloc_size);
       ret->dtype = (source->dtype & ~GFC_DTYPE_RANK_MASK) | rdim;
     }