### Basic Info - Commit SHA: 9912e474bebc81590c3f0d1d760b9ebf59e002d3 ### Bug description Clang 18 MSAN found an use-of-uninitialized-value error at lib_com/tools_fx.c:1354:16: ``` ==20200==WARNING: MemorySanitizer: use-of-uninitialized-value #0 0x558c24a7cf80 in Copy_Scale_sig_16_32_DEPREC /builds/rep/sa4/audio/ivas-basop/lib_com/tools_fx.c:1354:16 #1 0x558c238a3efc in stereo_mdct_core_dec_fx /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_stereo_mdct_core_dec_fx.c:376:9 #2 0x558c2402861d in ivas_core_dec_fx /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_core_dec_fx.c:742:17 #3 0x558c24055f84 in ivas_cpe_dec_fx /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_cpe_dec_fx.c:585:9 #4 0x558c235520f8 in ivas_dec_fx /builds/rep/sa4/audio/ivas-basop/lib_dec/ivas_jbm_dec_fx.c:153:9 #5 0x558c2315cb37 in IVAS_DEC_GetSamplesDecoder /builds/rep/sa4/audio/ivas-basop/lib_dec/lib_dec_fx.c:3909:13 #6 0x558c23101b4d in decodeG192 /builds/rep/sa4/audio/ivas-basop/apps/decoder.c:2294:32 #7 0x558c230e5c82 in main /builds/rep/sa4/audio/ivas-basop/apps/decoder.c:686:17 #8 0x7f32aab2a1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 #9 0x7f32aab2a28a in __libc_start_main csu/../csu/libc-start.c:360:3 #10 0x558c23047484 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_com/tools_fx.c:1354:16 in Copy_Scale_sig_16_32_DEPREC ``` ### 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 -stereo -dtx 48000 16 scripts/testv/stvST16n.wav stvST16n.wav_stereo_at_48_kbps_16_kHz_in_16_kHz_out_DTX_on.192 IVAS_dec -fr 20 STEREO 16 stvST16n.wav_stereo_at_48_kbps_16_kHz_in_16_kHz_out_DTX_on.192 stvST16n.wav_stereo_at_48_kbps_16_kHz_in_16_kHz_out_DTX_on.dec.wav ``` or ``` python3 -m pytest "test_param_file_tests[stv-stereo at 48 kbps, 16 kHz in, 16 kHz out, DTX on]" -n auto --update_ref --ref_encoder_path ./IVAS_cod --ref_decoder_path ./IVAS_dec ```