fix (NR UE): allocate/free rxdata pointer for neighbor measurements

Fix a UE crash in the neighbor-measurement task setup by allocating the per-antenna
rxdata pointer array before indexing it in pbch_processing(), and freeing it in
nr_ue_meas_neighboring_cell() after measurements complete.

The crash is triggered by intra-frequency neighbor measurements.

openair1/PHY/NR_UE_ESTIMATION/nr_ue_measurements.c

@@ -459,6 +459,7 @@ void nr_ue_meas_neighboring_cell(void *arg)
   do_neighboring_cell_measurements(&args->proc, args->ue, args->rxdata, args->rxdata_size);
 
   args->ue->measurements.meas_request_pending = false;
+  free(args->rxdata);
   free(args);
 }
 

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -1201,10 +1201,11 @@ int pbch_processing(PHY_VARS_NR_UE *ue, const UE_nr_rxtx_proc_t *proc, nr_phy_da
     // Copy rxdata
     uint32_t rxdata_size = (2 * (fp->samples_per_frame) + fp->ofdm_symbol_size);
     size_t total_size = sizeof(nr_meas_task_args_t) + fp->nb_antennas_rx * rxdata_size * sizeof(c16_t);
-    nr_meas_task_args_t *args = malloc(total_size);
+    nr_meas_task_args_t *args = malloc_or_fail(total_size);
     args->proc = *proc;
     args->ue = ue;
     args->rxdata_size = rxdata_size;
+    args->rxdata = malloc_or_fail(fp->nb_antennas_rx * sizeof(*args->rxdata));
 
     for (int i = 0; i < fp->nb_antennas_rx; i++) {
       args->rxdata[i] = &args->rxdata_ant[i * rxdata_size];