From c0c403744b1bf4a9790a8fcaabcd60970cbefe06 Mon Sep 17 00:00:00 2001
From: Michael R Sweet <michael.r.sweet@gmail.com>
Date: Tue, 7 Jun 2022 13:45:29 -0400
Subject: [PATCH] Fix OpenSSL crash bug - "tls" pointer wasn't cleared after
 freeing it (Issue #409)

diff --git a/cups/tls-openssl.c b/cups/tls-openssl.c
index c3e57742e..6db9f8a9c 100644
--- a/cups/tls-openssl.c
+++ b/cups/tls-openssl.c
@@ -1152,6 +1152,8 @@ _httpTLSStop(http_t *http)		// I - Connection to server
   SSL_shutdown(http->tls);
   SSL_CTX_free(context);
   SSL_free(http->tls);
+
+  http->tls = NULL;
 }