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Fix buffer overflow for SRS

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This commit is contained in:
Roberto Louro Magueta
2022-08-26 11:04:04 +01:00
parent e28fccc7fb
commit 4e434ecf45
1 changed files with 5 additions and 1 deletions
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openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+5 -1
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@@ -994,7 +994,11 @@ int nr_srs_channel_estimation(const PHY_VARS_gNB *gNB,
while(((long)&srs_estimated_channel_freq[0][nr_srs_info->sc_list[0] + mem_offset] & 0xF) != 0) {
mem_offset++;
}
int32_t srs_est[frame_parms->ofdm_symbol_size*(1<<srs_pdu->num_symbols) + mem_offset] __attribute__ ((aligned(32)));
// filt16_end is {4096,8192,8192,8192,12288,16384,16384,16384,0,0,0,0,0,0,0,0}
// The End of OFDM symbol corresponds to the position of last 16384 in the filter
// The multadd_real_vector_complex_scalar applies the remaining 8 zeros of filter, therefore, to avoid a buffer overflow,
// we added 8 in the array size
int32_t srs_est[frame_parms->ofdm_symbol_size*(1<<srs_pdu->num_symbols) + mem_offset + 8] __attribute__ ((aligned(32)));
for (int ant = 0; ant < frame_parms->nb_antennas_rx; ant++) {