--- pythonrun.original.c	2015-07-03 22:01:35.065875000 +0400
+++ pythonrun.c	2015-07-03 19:15:11.459429600 +0400
@@ -1103,11 +1103,25 @@
 }
 
 static int
+check_fd(int fd)
+{
+#if defined(HAVE_FSTAT)
+    struct stat buf;
+    if (fstat(fd, &buf) < 0 && errno == EBADF) {
+        return -1;
+    }
+#endif
+    return 0;
+}
+
+static int
 is_valid_fd(int fd)
 {
     int dummy_fd;
     if (fd < 0 || !_PyVerify_fd(fd))
         return 0;
+    if (check_fd(fd) < 0)
+        return 0;
     dummy_fd = dup(fd);
     if (dummy_fd < 0)
         return 0;