From d26a00ef3484f7fa602044e73e31bcefc8ca1917 Mon Sep 17 00:00:00 2001 From: Sean Bright Date: Fri, 7 Jul 2023 15:57:39 -0400 Subject: [PATCH] chan_iax2.c: Avoid crash with IAX2 switch support. A change made in 82cebaa0 did not properly handle the case when a channel was not provided, triggering a crash. ast_check_hangup(...) does not protect against NULL pointers. Fixes #180 --- channels/chan_iax2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/channels/chan_iax2.c +++ b/channels/chan_iax2.c @@ -14323,7 +14323,7 @@ static struct iax2_dpcache *find_cache(s ast_log(LOG_WARNING, "Timeout waiting for %s exten %s\n", data, exten); } - if (ast_check_hangup(chan)) { + if (chan && ast_check_hangup(chan)) { doabort = 1; }