From 78378f3301bbc0c1441b12eb628b14cf9faf7775 Mon Sep 17 00:00:00 2001
From: luis_pereira87 <lpereira@allbesmart.pt>
Date: Wed, 30 Apr 2025 10:01:41 +0100
Subject: [PATCH] Avoid segmentation fault when testing trigger reestablishment
 and there is no DRB[0] established

---
 openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c b/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c
index 94079dada8..322277c3aa 100644
--- a/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c
+++ b/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c
@@ -948,7 +948,12 @@ void nr_rlc_test_trigger_reestablishment(int ue_id)
   ent->reestablishment(ent);
   /* Trigger re-establishment on OAI UE */
   nr_rlc_entity_t *drb = ue->drb[0];
-  drb->reestablishment(drb);
+  if (drb) {
+    drb->reestablishment(drb);
+  } else {
+    LOG_W(RLC, "DRB[0] is NULL for UE %04x\n", ue_id);
+  }
+
   nr_rlc_manager_unlock(nr_rlc_ue_manager);
 }