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From 39912b91384b4a6a4b4b34cdd338970c184fb096 Mon Sep 17 00:00:00 2001
From: Sean Bright <sean@seanbright.com>
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
@@ -14312,7 +14312,7 @@ 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;
}
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