# Basic info <!--- Add commit SHA used to reproduce--> - Fixed point: 24e8bdab048783058e1cbd328e66b0a7935e5153 # Bug description USAN found an out-of-bounds indexing: ``` lib_enc/tcx_ltp_enc_fx.c:206:18: runtime error: index -85 out of bounds for type 'Word32 [256]' #0 0x91cca9 in tcx_ltp_pitch_search /ivas-basop/lib_enc/tcx_ltp_enc_fx.c:206:18 #1 0x9186a4 in tcx_ltp_encode_fx /ivas-basop/lib_enc/tcx_ltp_enc_fx.c:660:9 #2 0x97bd39 in core_acelp_tcx20_switching_fx /ivas-basop/lib_enc/core_enc_ol_fx.c:849:5 #3 0x8b6f6d in pre_proc_fx /ivas-basop/lib_enc/pre_proc_fx.c:1213:13 #4 0x46035a in evs_enc_fx /ivas-basop/lib_enc/evs_enc_fx.c:182:5 #5 0x43d56d in IVAS_ENC_EncodeFrameToSerial /ivas-basop/lib_enc/lib_enc_fx.c:1494:13 #6 0x42cf18 in main /ivas-basop/apps/encoder.c:877:28 #7 0x7f3513dd1d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16 #8 0x7f3513dd1e3f in __libc_start_main csu/../csu/libc-start.c:392:3 #9 0x4045b4 in _start (/ivas-basop/IVAS_cod+0x4045b4) SUMMARY: UndefinedBehaviorSanitizer: out-of-bounds-index lib_enc/tcx_ltp_enc_fx.c:206:18 in ``` It needs to be checked if this is an actual bug or a somewhat "false positive" that is assigned, but never really used. In any case, it is preferable to fix this to have one less noise in the USAN error reports. # Ways to reproduce <!--Commandline or script--> ```bash make clean make -j CLANG=3 IVAS_cod -stereo_dmx_evs 24400 48 scripts/testv/stvST48c.wav bit ``` <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary.-->