From e28aec53b05b5d2f0a80c5a04b68e92231509b03 Mon Sep 17 00:00:00 2001
From: Samy <samy@ap4.sh>
Date: Sun, 5 Jul 2026 16:03:09 +0200
Subject: [PATCH] device: abort Ledger tx prefix hashing on denial

---
 src/device/device_ledger.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/device/device_ledger.cpp b/src/device/device_ledger.cpp
index 600528012..e0a45a6cd 100644
--- a/src/device/device_ledger.cpp
+++ b/src/device/device_ledger.cpp
@@ -1530,7 +1530,7 @@ namespace hw {
 
       this->buffer_send[4] = offset-5;
       this->length_send = offset;
-      this->exchange_wait_on_input();
+      CHECK_AND_ASSERT_THROW_MES(this->exchange_wait_on_input() == 0, "Transaction denied on device.");
 
       //hash remains
       int cnt = 0;