Fixes #164

lib/src/phy/phch/pbch.c

@@ -400,6 +400,7 @@ int decode_frame(srslte_pbch_t *q, uint32_t src, uint32_t dst, uint32_t n,
     uint32_t nof_bits, uint32_t nof_ports) {
   int j;
 
+  if (dst + n <= 4 && src + n <= 4) {
     memcpy(&q->temp[dst * nof_bits], &q->llr[src * nof_bits],
            n * nof_bits * sizeof(float));
 
@@ -428,6 +429,11 @@ int decode_frame(srslte_pbch_t *q, uint32_t src, uint32_t dst, uint32_t n,
     } else {
       return SRSLTE_SUCCESS;
     }
+  } else {
+    fprintf(stderr, "Error in PBCH decoder: Invalid frame pointers dst=%d, src=%d, n=%d\n", src, dst, n);
+    return -1;
+  }
+
 }
 
 /* Decodes the PBCH channel
@@ -526,6 +532,7 @@ int srslte_pbch_decode(srslte_pbch_t *q, cf_t *slot1_symbols, cf_t *ce_slot1[SRS
                   memcpy(bch_payload, q->data, sizeof(uint8_t) * SRSLTE_BCH_PAYLOAD_LEN);      
                 }
                 INFO("Decoded PBCH: src=%d, dst=%d, nb=%d, sfn_offset=%d\n", src, dst, nb+1, (int) dst - src + q->frame_idx - 1);
+                srslte_pbch_decode_reset(q);
                 return 1;
               }
             }