tm: check T just in case before UNREF

Related #3156
kamailio · Jul 6, 2022 · dedd7ee · dedd7ee
1 parent 504695d
commit dedd7ee
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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)); \
 		}\