From 3c52b0b4ee99847b3d187ccfc436ec3290e28e71 Mon Sep 17 00:00:00 2001
From: Augustin Degomme <adegomme@gmail.com>
Date: Sun, 4 Apr 2021 01:04:12 +0200
Subject: [PATCH] set keyval to invalid after free

---
 src/smpi/include/smpi_keyvals.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/smpi/include/smpi_keyvals.hpp b/src/smpi/include/smpi_keyvals.hpp
index 7fd5e301e8..d32378651e 100644
--- a/src/smpi/include/smpi_keyvals.hpp
+++ b/src/smpi/include/smpi_keyvals.hpp
@@ -90,6 +90,7 @@ template <typename T> int Keyval::keyval_free(int* keyval){
   }else{
     elem->refcount--;
   }
+  *keyval = MPI_KEYVAL_INVALID;
   return MPI_SUCCESS;
 }
 
-- 
2.20.1