From f201608959fab1bada2889744bc037789f67bb22 Mon Sep 17 00:00:00 2001
From: wiwi878 <a31625802@gmail.com>
Date: Wed, 1 Jul 2026 04:15:22 +0000
Subject: [PATCH] fix: skip NIA0 for non-emergency NAS integrity selection

---
 internal/context/amf_ue.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/internal/context/amf_ue.go b/internal/context/amf_ue.go
index a51d62dc..3ffe352a 100644
--- a/internal/context/amf_ue.go
+++ b/internal/context/amf_ue.go
@@ -608,7 +608,8 @@ func (ue *AmfUe) SelectSecurityAlg(intOrder, encOrder []uint8) error {
 	for _, intAlg := range intOrder {
 		switch intAlg {
 		case security.AlgIntegrity128NIA0:
-			ueSupported = ue.UESecurityCapability.GetIA0_5G()
+			// TODO: Revisit this if AMF adds explicit emergency registration support.
+			continue
 		case security.AlgIntegrity128NIA1:
 			ueSupported = ue.UESecurityCapability.GetIA1_128_5G()
 		case security.AlgIntegrity128NIA2: