==2030== Thread 19:
==2030== Invalid read of size 4
==2030==    at 0x59BAF1: ast_translate (translate.c:543)
==2030==    by 0x47FACE: __ast_read (channel.c:4297)
==2030==    by 0x47FE2E: ast_read (channel.c:4364)
==2030==    by 0x455E87: ast_bridge_handle_trip (bridging.c:294)
==2030==    by 0x458269: bridge_channel_join_multithreaded (bridging.c:768)
==2030==    by 0x45935D: bridge_channel_join (bridging.c:1001)
==2030==    by 0x459E3D: ast_bridge_join (bridging.c:1123)
==2030==    by 0x16E51609: confbridge_exec (app_confbridge.c:1705)
==2030==    by 0x52FDB2: pbx_exec (pbx.c:1598)
==2030==    by 0x53A25D: pbx_extension_helper (pbx.c:4674)
==2030==    by 0x53D6FC: ast_spawn_extension (pbx.c:5790)
==2030==    by 0x53EDF7: __ast_pbx_run (pbx.c:6265)
==2030==    by 0x5407D2: pbx_thread (pbx.c:6595)
==2030==    by 0x5A630E: dummy_start (utils.c:1162)
==2030==    by 0x623DE99: start_thread (pthread_create.c:308)
==2030==  Address 0x9485d30 is 272 bytes inside a block of size 596 free'd
==2030==    at 0x4C2A739: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==2030==    by 0x4F519A: __frame_free (frame.c:338)
==2030==    by 0x4F51D0: ast_frame_free (frame.c:350)
==2030==    by 0x59B9C0: ast_translate (translate.c:525)
==2030==    by 0x47FACE: __ast_read (channel.c:4297)
==2030==    by 0x47FE2E: ast_read (channel.c:4364)
==2030==    by 0x455E87: ast_bridge_handle_trip (bridging.c:294)
==2030==    by 0x458269: bridge_channel_join_multithreaded (bridging.c:768)
==2030==    by 0x45935D: bridge_channel_join (bridging.c:1001)
==2030==    by 0x459E3D: ast_bridge_join (bridging.c:1123)
==2030==    by 0x16E51609: confbridge_exec (app_confbridge.c:1705)
==2030==    by 0x52FDB2: pbx_exec (pbx.c:1598)
==2030==    by 0x53A25D: pbx_extension_helper (pbx.c:4674)
==2030==    by 0x53D6FC: ast_spawn_extension (pbx.c:5790)
==2030==    by 0x53EDF7: __ast_pbx_run (pbx.c:6265)
==2030==    by 0x5407D2: pbx_thread (pbx.c:6595)
==2030==    by 0x5A630E: dummy_start (utils.c:1162)
==2030==    by 0x623DE99: start_thread (pthread_create.c:308)