diff --git a/srsenb/src/stack/rrc/rrc.cc b/srsenb/src/stack/rrc/rrc.cc
index 4fb9b6331..8c8fd5e85 100644
--- a/srsenb/src/stack/rrc/rrc.cc
+++ b/srsenb/src/stack/rrc/rrc.cc
@@ -735,7 +735,7 @@ uint32_t rrc::generate_sibs()
         return SRSRAN_ERROR;
       }
       asn1::bit_ref bref(sib_buffer->msg, sib_buffer->get_tailroom());
-      if (msg[msg_index].pack(bref) == asn1::SRSASN_ERROR_ENCODE_FAIL) {
+      if (msg[msg_index].pack(bref) != asn1::SRSASN_SUCCESS) {
         logger.error("Failed to pack SIB message %d", msg_index);
         return SRSRAN_ERROR;
       }
@@ -889,7 +889,10 @@ int rrc::pack_mcch()
 
   const int     rlc_header_len = 1;
   asn1::bit_ref bref(&mcch_payload_buffer[rlc_header_len], sizeof(mcch_payload_buffer) - rlc_header_len);
-  mcch.pack(bref);
+  if (mcch.pack(bref) != asn1::SRSASN_SUCCESS) {
+    logger.error("Failed to pack MCCH message");
+  }
+
   current_mcch_length = bref.distance_bytes(&mcch_payload_buffer[1]);
   current_mcch_length = current_mcch_length + rlc_header_len;
   return current_mcch_length;
diff --git a/srsenb/src/stack/rrc/rrc_nr.cc b/srsenb/src/stack/rrc/rrc_nr.cc
index 2f66c6ae5..e8b107603 100644
--- a/srsenb/src/stack/rrc/rrc_nr.cc
+++ b/srsenb/src/stack/rrc/rrc_nr.cc
@@ -215,7 +215,10 @@ int32_t rrc_nr::generate_sibs()
       return SRSRAN_ERROR;
     }
     asn1::bit_ref bref(mib_buf->msg, mib_buf->get_tailroom());
-    mib_msg.pack(bref);
+    if (mib_msg.pack(bref) != asn1::SRSASN_SUCCESS) {
+      logger.error("Couldn't pack mib msg");
+      return SRSRAN_ERROR;
+    }
     mib_buf->N_bytes = bref.distance_bytes();
     logger.debug(mib_buf->msg, mib_buf->N_bytes, "MIB payload (%d B)", mib_buf->N_bytes);
     mib_buffer = std::move(mib_buf);
@@ -253,7 +256,10 @@ int32_t rrc_nr::generate_sibs()
       return SRSRAN_ERROR;
     }
     asn1::bit_ref bref(sib->msg, sib->get_tailroom());
-    msg[msg_index].pack(bref);
+    if (msg[msg_index].pack(bref) != asn1::SRSASN_SUCCESS) {
+      logger.error("Failed to pack SIB message %d", msg_index);
+      return SRSRAN_ERROR;
+    }
     sib->N_bytes = bref.distance_bytes();
     sib_buffer.push_back(std::move(sib));
 
diff --git a/srsenb/src/stack/rrc/rrc_ue.cc b/srsenb/src/stack/rrc/rrc_ue.cc
index 78255d958..12192230e 100644
--- a/srsenb/src/stack/rrc/rrc_ue.cc
+++ b/srsenb/src/stack/rrc/rrc_ue.cc
@@ -911,7 +911,10 @@ bool rrc::ue::handle_ue_cap_info(ue_cap_info_s* msg)
     dest.resize(bref2.distance_bytes());
     memcpy(dest.data(), pdu->msg, bref2.distance_bytes());
     bref2 = asn1::bit_ref{pdu->msg, pdu->get_tailroom()};
-    ue_rat_caps.pack(bref2);
+    if (ue_rat_caps.pack(bref2) != asn1::SRSASN_SUCCESS) {
+      parent->logger.error("Couldn't pack ue rat caps");
+      return false;
+    }
     pdu->N_bytes = bref2.distance_bytes();
     parent->s1ap->send_ue_cap_info_indication(rnti, std::move(pdu));
   }
diff --git a/srsenb/src/stack/upper/s1ap.cc b/srsenb/src/stack/upper/s1ap.cc
index a828911d7..7b78d27df 100644
--- a/srsenb/src/stack/upper/s1ap.cc
+++ b/srsenb/src/stack/upper/s1ap.cc
@@ -1806,7 +1806,10 @@ bool s1ap::sctp_send_s1ap_pdu(const asn1::s1ap::s1ap_pdu_c& tx_pdu, uint32_t rnt
     return false;
   }
   asn1::bit_ref bref(buf->msg, buf->get_tailroom());
-  tx_pdu.pack(bref);
+  if (tx_pdu.pack(bref) != asn1::SRSASN_SUCCESS) {
+    logger.error("Failed to pack TX PDU %s", procedure_name);
+    return false;
+  }
   buf->N_bytes = bref.distance_bytes();
 
   // Save message to PCAP