Re: [sr-dev] [kamailio/kamailio] 5.5.1 crash processing INVITE and CANCEL at almost the same time (Issue #3156)

maybe this will help?

``` diff --git a/src/modules/tm/t_funcs.h b/src/modules/tm/t_funcs.h index 6830b13..dbbdc19 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)); \ }\ ```