Fixes #273

lib/src/phy/phch/pusch.c

@@ -533,6 +533,10 @@ int srslte_pusch_encode(srslte_pusch_t *q, srslte_pusch_cfg_t *cfg, srslte_softb
     srslte_sequence_t *seq = get_user_sequence(q, rnti, cfg->sf_idx, cfg->nbits.nof_bits);
 
     // Run scrambling
+    if (!seq) {
+      fprintf(stderr, "Error getting scrambling sequence\n");
+      return SRSLTE_ERROR;
+    }
     srslte_scrambling_bytes(seq, (uint8_t*) q->q, cfg->nbits.nof_bits);
 
     // Correct UCI placeholder/repetition bits

srsue/src/phy/phch_worker.cc

@@ -1269,6 +1269,22 @@ void phch_worker::encode_pusch(srslte_ra_ul_grant_t *grant, uint8_t *payload, ui
   char timestr[64];
   timestr[0]='\0';
   
+  /* Check input values ranges */
+  if (rnti == 0) {
+    Warning("Encode PUSCH: Invalid RNTI (= 0)\n");
+    return;
+  } else if (rv > 3) {
+    Warning("Encode PUSCH: Invalid RV (= %ud)\n", rv);
+    return;
+  } else if (payload == NULL) {
+    Warning("Encode PUSCH: NULL payload\n");
+    return;
+  } else if (softbuffer == NULL) {
+    Warning("Encode PUSCH: NULL softbuffer\n");
+    return;
+  }
+
+  /* Configure and encode */
   if (srslte_ue_ul_cfg_grant(&ue_ul, grant, TTI_TX(tti), rv, current_tx_nb)) {
     Error("Configuring UL grant\n");
   }