### Basic Info - Commit SHA: 9912e474bebc81590c3f0d1d760b9ebf59e002d3 ### Bug description Clang 18 MSAN found an use-of-uninitialized-value error at lib_enc/ivas_mct_enc_mct_fx.c:99:27: ``` ==20021==WARNING: MemorySanitizer: use-of-uninitialized-value #0 0x5556167639fb in getChannelEnergies_fx /builds/rep/sa4/audio/ivas-basop/lib_enc/ivas_mct_enc_mct_fx.c:99:27 #1 0x555616769274 in getGlobalILD_fx /builds/rep/sa4/audio/ivas-basop/lib_enc/ivas_mct_enc_mct_fx.c:518:5 #2 0x5556167647e3 in apply_MCT_enc_fx /builds/rep/sa4/audio/ivas-basop/lib_enc/ivas_mct_enc_mct_fx.c:676:9 #3 0x5556167568b8 in ivas_mct_core_enc_fx /builds/rep/sa4/audio/ivas-basop/lib_enc/ivas_mct_core_enc_fx.c:438:5 #4 0x555615e530c2 in ivas_mct_enc_fx /builds/rep/sa4/audio/ivas-basop/lib_enc/ivas_mct_enc_fx.c:418:5 #5 0x555615d27a1c in ivas_enc_fx /builds/rep/sa4/audio/ivas-basop/lib_enc/ivas_enc_fx.c:291:13 #6 0x555615c21675 in IVAS_ENC_EncodeFrameToSerial /builds/rep/sa4/audio/ivas-basop/lib_enc/lib_enc_fx.c:1502:13 #7 0x555615c0094a in main /builds/rep/sa4/audio/ivas-basop/apps/encoder.c:877:28 #8 0x7fbe89efe1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 #9 0x7fbe89efe28a in __libc_start_main csu/../csu/libc-start.c:360:3 #10 0x555615b60454 in _start (/builds/rep/sa4/audio/ivas-basop/IVAS_cod+0x38454) (BuildId: 1e98dc6728760144942259e69e2f21b3f1a998a8) SUMMARY: MemorySanitizer: use-of-uninitialized-value /builds/rep/sa4/audio/ivas-basop/lib_enc/ivas_mct_enc_mct_fx.c:99:27 in getChannelEnergies_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 -sba 1 160000 32 scripts/testv/stvFOA32c.wav stvFOA32c.wav_SBA_at_160_kbps_32kHz_in_32kHz_out_FOA_out.192 ``` or ``` python3 -m pytest "test_param_file_tests[stv-SBA at 160 kbps, 32kHz in, 32kHz out, FOA out]" -n auto --update_ref --ref_encoder_path ./IVAS_cod --ref_decoder_path ./IVAS_dec ```