Merge pull request #953 from LedgerHQ/fix/apa/erc20_blind_signing

App hotfix 1.21.1

Author: apaillier-ledger

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.21.1](../../compare/1.20.1...1.21.1) - 2026-02-19
+
+### Fixed
+
+- Blind-signing of ERC-20 transfer/approve not working
+
 ## [1.21.0](../../compare/1.20.1...1.21.0) - 2026-02-16
 
 ### Added

Makefile

@@ -37,7 +37,7 @@ include ./makefile_conf/chain/$(CHAIN).mk
 
 APPVERSION_M = 1
 APPVERSION_N = 21
-APPVERSION_P = 0
+APPVERSION_P = 1
 APPVERSION = $(APPVERSION_M).$(APPVERSION_N).$(APPVERSION_P)
 
 # Application source files

src/nbgl/ui_approve_tx.c

@@ -331,7 +331,7 @@ static bool ux_init(bool fromPlugin, uint8_t title_len, uint8_t finish_len) {
         goto error;
     }
 
-    if (fromPlugin == true) {
+    if (fromPlugin && (dataContext.tokenContext.pluginUiMaxItems > 0)) {
         buf_size = dataContext.tokenContext.pluginUiMaxItems * sizeof(plugin_buffers_t);
         // Allocate the plugin buffers
         if ((plugin_buffers = app_mem_alloc(buf_size)) == NULL) {