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Fix integer overflow

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avoid UBsan error:
  openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c:459:77: runtime error: signed integer overflo w: 2009540296 + 668087372 cannot be represented in type 'int'
This commit is contained in:
Robert Schmidt
2024-06-06 12:36:40 +02:00
parent a9718835d4
commit 321c475176
1 changed files with 3 additions and 4 deletions
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openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
+3 -4
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@@ -454,10 +454,9 @@ static void nr_ulsch_channel_level(int **ul_ch_estimates_ext,
avg128U = simde_mm_add_epi32(avg128U, simde_mm_srai_epi32(simde_mm_madd_epi16(ul_ch128[i], ul_ch128[i]), x));
}
avg[aatx*frame_parms->nb_antennas_rx+aarx] = (((int32_t*)&avg128U)[0] +
((int32_t*)&avg128U)[1] +
((int32_t*)&avg128U)[2] +
((int32_t*)&avg128U)[3]) / y;
int32_t *avg32i = (int32_t *)&avg128U;
int64_t avg64 = (int64_t)avg32i[0] + avg32i[1] + avg32i[2] + avg32i[3];
avg[aatx * frame_parms->nb_antennas_rx + aarx] = avg64 / y;
}
}