[sr-dev] git:5.6:d97c59a1: tm: check T just in case before UNREF

[Victor Seva]

Module: kamailio
Branch: 5.6
Commit: d97c59a15bf6634d28998b3a0fa4acc845b70fa2
URL: https://github.com/kamailio/kamailio/commit/d97c59a15bf6634d28998b3a0fa4acc845b70fa2

Author: Victor Seva <vseva at sipwise.com>
Committer: Victor Seva <linuxmaniac at torreviejawireless.org>
Date: 2022-07-06T09:37:34+02:00

tm: check T just in case before UNREF

Related #3156

(cherry picked from commit dedd7ee2ddcb92b020ea40a074008a317a9553f5)

---

Modified: src/modules/tm/t_funcs.h

---

Diff:  https://github.com/kamailio/kamailio/commit/d97c59a15bf6634d28998b3a0fa4acc845b70fa2.diff
Patch: https://github.com/kamailio/kamailio/commit/d97c59a15bf6634d28998b3a0fa4acc845b70fa2.patch

---

diff --git a/src/modules/tm/t_funcs.h b/src/modules/tm/t_funcs.h
index 6830b13208..dbbdc1960a 100644
--- a/src/modules/tm/t_funcs.h
+++ b/src/modules/tm/t_funcs.h
@@ -110,7 +110,7 @@ int send_pr_buffer( struct retr_buf *rb, void *buf, int len);
 
 #define UNREF_NOSTATS(_T_cell) \
 	do{\
-		if (atomic_dec_and_test(&(_T_cell)->ref_count)){ \
+		if (_T_cell && atomic_dec_and_test(&(_T_cell)->ref_count)){ \
 			unlink_timers((_T_cell)); \
 			free_cell((_T_cell)); \
 		}\