From c3797c3ccde4eeee17d39dc3cfa9b70d940a95fe Mon Sep 17 00:00:00 2001
From: Luca Saiu <positron@pep.foundation>
Date: Tue, 31 Aug 2021 17:37:06 +0200
Subject: [PATCH] fix minor memory leak: free session->curr_passphrase at
 session closing

Another leak, much more complex and difficult to reproduce, remains.  See
_do_full_reset_on_single_own_ungrouped_identity in src/key_reset.c .
---
 src/pEpEngine.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/pEpEngine.c b/src/pEpEngine.c
index 1dac1961..31e7f9b6 100644
--- a/src/pEpEngine.c
+++ b/src/pEpEngine.c
@@ -161,6 +161,12 @@ DYNAMIC_API void release(PEP_SESSION session)
                 sqlite3_close_v2(session->system_db);
         }
 
+        if (!EMPTYSTR(session->curr_passphrase)) {
+            free (session->curr_passphrase);
+            /* In case the following freeing code still uses the field. */
+            session->curr_passphrase = NULL;
+        }
+
         release_transport_system(session, out_last);
         release_cryptotech(session, out_last);
         free(session);