From 44d9446eb5002f59a64ada561b9732064da64aaf Mon Sep 17 00:00:00 2001 From: Alexander Traud Date: Fri, 13 Oct 2017 15:12:07 +0200 Subject: [PATCH] tcptls: NULL-check the parameter of ast_ssl_teardown before accessing it. This avoids a crash on stopping a chan_sip which failed to start its TLS server. ASTERISK-27339 #close Change-Id: I327fc70db68eaaca5b50a15c7fd687fde79263d5 --- main/tcptls.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/main/tcptls.c b/main/tcptls.c index dbcff9da21..a25e25b53a 100644 --- a/main/tcptls.c +++ b/main/tcptls.c @@ -500,7 +500,7 @@ int ast_ssl_setup(struct ast_tls_config *cfg) void ast_ssl_teardown(struct ast_tls_config *cfg) { #ifdef DO_SSL - if (cfg->ssl_ctx) { + if (cfg && cfg->ssl_ctx) { SSL_CTX_free(cfg->ssl_ctx); cfg->ssl_ctx = NULL; }