From b6bb8cb125fb1150a64564614ff582de657e946b Mon Sep 17 00:00:00 2001
From: Andre Puschmann <andre@softwareradiosystems.com>
Date: Tue, 15 Jan 2019 16:12:52 +0100
Subject: [PATCH] fix possible buffer overflow when generating PRACH sequences

---
 srsue/src/phy/prach.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/srsue/src/phy/prach.cc b/srsue/src/phy/prach.cc
index 390ff8f9d..3c230b688 100644
--- a/srsue/src/phy/prach.cc
+++ b/srsue/src/phy/prach.cc
@@ -175,8 +175,8 @@ int prach::tx_tti() {
 
 cf_t *prach::generate(float cfo, uint32_t *nof_sf, float *target_power) {
 
-  if (cell_initiated && preamble_idx >= 0 && nof_sf && preamble_idx <= 64 &&
-      srslte_cell_isvalid(&cell) && len < MAX_LEN_SF * 30720 && len > 0) {
+  if (cell_initiated && preamble_idx >= 0 && nof_sf && preamble_idx <= 63 && srslte_cell_isvalid(&cell) &&
+      len < MAX_LEN_SF * 30720 && len > 0) {
 
     // Correct CFO before transmission FIXME: UL SISO Only
     srslte_cfo_correct(&cfo_h, buffer[preamble_idx], signal_buffer, cfo / srslte_symbol_sz(cell.nof_prb));