==305984== 950 bytes in 5 blocks are definitely lost in loss record 517 of 530
==305984==    at 0x48850E8: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-arm64-linux.so)
==305984==    by 0x5DF551F: strdup (strdup.c:42)
==305984==    by 0x56BDE3: zbx_strdup2 (misc.c:197)
==305984==    by 0x3FC1BB: snmp_walk_serialize_json (preproc_snmp.c:786)
==305984==    by 0x3FC983: item_preproc_snmp_walk_to_json (preproc_snmp.c:964)
==305984==    by 0x3FEBD3: pp_execute_snmp_to_json (pp_execute.c:997)
==305984==    by 0x3FF03F: pp_execute_step (pp_execute.c:1129)
==305984==    by 0x3FF38F: pp_execute (pp_execute.c:1215)
==305984==    by 0x3F336B: pp_task_process_value (pp_worker.c:57)
==305984==    by 0x3F376B: pp_worker_entry (pp_worker.c:159)
==305984==    by 0x5DDE813: start_thread (pthread_create.c:444)
==305984==    by 0x5E47D5B: thread_start (clone.S:79)