From 9b8abc1b011e65d29b87e21625a55ba0ed652e87 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 21 Nov 2021 13:30:07 +0100
Subject: -fix use after free

---
 src/util/test_helper_eddsa.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/util/test_helper_eddsa.c')

diff --git a/src/util/test_helper_eddsa.c b/src/util/test_helper_eddsa.c
index 7ce457d8..9b821ae2 100644
--- a/src/util/test_helper_eddsa.c
+++ b/src/util/test_helper_eddsa.c
@@ -220,6 +220,7 @@ test_revocation (struct TALER_CRYPTO_ExchangeSignHelper *esh)
                  "\nFAILED: timeout trying to revoke key %u\n",
                  j);
         TALER_CRYPTO_helper_esign_disconnect (esh);
+        esh = NULL;
         return 2;
       }
       fprintf (stderr, "\n");
@@ -453,7 +454,11 @@ run_test (void)
   if (0 == ret)
     ret = perf_signing (esh,
                         "sequential");
-  TALER_CRYPTO_helper_esign_disconnect (esh);
+  if (NULL != esh)
+  {
+    TALER_CRYPTO_helper_esign_disconnect (esh);
+    esh = NULL;
+  }
   if (0 == ret)
     ret = par_signing (cfg);
   /* clean up our state */
-- 
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