krb5/Clean-up-context-after-failed-open-in-libkdb5.patch

From 95547c12b39e62df55cef05cae890302834b7f98 Mon Sep 17 00:00:00 2001
From: Greg Hudson <ghudson@mit.edu>
Date: Wed, 23 Jun 2021 16:57:39 -0400
Subject: [PATCH] Clean up context after failed open in libkdb5

If krb5_db_open() or krb5_db_create() fails, release the dal_handle,
as the caller is unlikely to call krb5_db_close() after a failure.

(cherry picked from commit 849b7056e703bd3724d909263769ce190db59acc)
---
 src/lib/kdb/kdb5.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lib/kdb/kdb5.c b/src/lib/kdb/kdb5.c
index 47e9b31a7..11e2430c4 100644
--- a/src/lib/kdb/kdb5.c
+++ b/src/lib/kdb/kdb5.c
@@ -675,6 +675,8 @@ krb5_db_open(krb5_context kcontext, char **db_args, int mode)
         return status;
     status = v->init_module(kcontext, section, db_args, mode);
     free(section);
+    if (status)
+        (void)krb5_db_fini(kcontext);
     return status;
 }
 
@@ -702,6 +704,8 @@ krb5_db_create(krb5_context kcontext, char **db_args)
         return status;
     status = v->create(kcontext, section, db_args);
     free(section);
+    if (status)
+        (void)krb5_db_fini(kcontext);
     return status;
 }