From 4e8af9027dab25ebff3fa1b6e5542640611778c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com>
Date: Sat, 5 Aug 2023 17:44:29 +0200
Subject: [PATCH] pam_start: free handlers on handler init failure

If the pam handlers fail to initialize halfway, clean them up
afterwards.  Since we set the handle to NULL callers can't clean them.
---
 libpam/pam_start.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libpam/pam_start.c b/libpam/pam_start.c
index 99dd03898..1fc36b3ed 100644
--- a/libpam/pam_start.c
+++ b/libpam/pam_start.c
@@ -143,6 +143,7 @@ static int _pam_start_internal (
 
     if ( _pam_init_handlers(*pamh) != PAM_SUCCESS ) {
 	pam_syslog(*pamh, LOG_ERR, "pam_start: failed to initialize handlers");
+	_pam_free_handlers(*pamh);
 	_pam_drop_env(*pamh);                 /* purge the environment */
 	_pam_drop((*pamh)->pam_conversation);
 	_pam_drop((*pamh)->service_name);