From 25c93c279fcf871c4a345044509f1f6364a4e24c Mon Sep 17 00:00:00 2001
From: Pol Henarejos <pol.henarejos@cttc.es>
Date: Wed, 17 Apr 2024 19:42:47 +0200
Subject: [PATCH] Fix potential crash on loading dkek.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
---
 src/hsm/kek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hsm/kek.c b/src/hsm/kek.c
index 945341e..688fdbb 100644
--- a/src/hsm/kek.c
+++ b/src/hsm/kek.c
@@ -110,7 +110,7 @@ int mse_decrypt_ct(uint8_t *data, size_t len) {
 
 int load_dkek(uint8_t id, uint8_t *dkek) {
     file_t *tf = search_file(EF_DKEK + id);
-    if (!tf) {
+    if (!file_has_data(tf)) {
         return CCID_ERR_FILE_NOT_FOUND;
     }
     memcpy(dkek, file_get_data(tf), DKEK_KEY_SIZE);