### Basic Info - Commit SHA: 9912e474bebc81590c3f0d1d760b9ebf59e002d3 ### Bug description Clang 18 MSAN found an use-of-uninitialized-value error at lib_dec/ivas_dirac_dec_fx.c:3226:9: ``` ==20257==WARNING: MemorySanitizer: use-of-uninitialized-value #0 0x5565fc79d587 in ivas_dirac_dec_render_sf_fx /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_dirac_dec_fx.c:3226:9 #1 0x5565fc782b0a in ivas_dirac_dec_render_fx /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_dirac_dec_fx.c:2109:9 #2 0x5565fbc5ab74 in ivas_dec_render_fx /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_jbm_dec_fx.c:1993:17 #3 0x5565fb8270f8 in IVAS_DEC_GetSamplesRenderer /builds/rep/sa4/audio/ivas-basop/lib_dec/lib_dec_fx.c:1483:9 #4 0x5565fb7ed99e in decodeG192 /builds/rep/sa4/audio/ivas-basop/apps/decoder.c:2351:32 #5 0x5565fb7d0c82 in main /builds/rep/sa4/audio/ivas-basop/apps/decoder.c:686:17 #6 0x7f63f717c1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 #7 0x7f63f717c28a in __libc_start_main csu/../csu/libc-start.c:360:3 #8 0x5565fb732484 in _start (/builds/rep/sa4/audio/ivas-basop/IVAS_dec+0x3b484) (BuildId: d67431847b0666f23b12d4f8ec995e42039e27da) SUMMARY: MemorySanitizer: use-of-uninitialized-value /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_dirac_dec_fx.c:3226:9 in ivas_dirac_dec_render_sf_fx ``` ### How to reproduce :warning: Make sure to use CLANG v18 for building the codec :warning Build with ``` make clean make -j CLANG=1 ``` Then run ``` IVAS_cod -masa 1 scripts/testv/stv20sMASA_1TC.met scripts/switchPaths/sw_13k2_to_128k_10fr.bin 48 scripts/testv/stv20sMASA_1TC.wav stv20sMASA_1TC.wav_MASA_vdir_1TC_bitrate_switching_from_13_2_kbps_to_128_kbps_48kHz_in_48kHz_out_FOA_out.192 IVAS_dec -fr 20 FOA 48 stv20sMASA_1TC.wav_MASA_vdir_1TC_bitrate_switching_from_13_2_kbps_to_128_kbps_48kHz_in_48kHz_out_FOA_out.192 stv20sMASA_1TC.wav_MASA_vdir_1TC_bitrate_switching_from_13_2_kbps_to_128_kbps_48kHz_in_48kHz_out_FOA_out.dec.wav ``` or ``` python3 -m pytest "test_param_file_tests[stv-MASA vdir 1TC bitrate switching from 13.2 kbps to 128 kbps, 48kHz in, 48kHz out, FOA out]" -n auto --update_ref --ref_encoder_path ./IVAS_cod --ref_decoder_path ./IVAS_dec ```