commit a1d980168357d6554008b7bb29a3f15b3594e13f
author mohammad1603 <mohammad.abomokh@arm.com> Wed Jun 06 13:45:55 2018 +0300
committer itayzafrir <itay.zafrir@arm.com> Wed Sep 05 12:41:52 2018 +0300
tree 3fcf55cce72a95db4d596ef975bfaf9faed95cb4
parent e3cb8a8d8b8667caa0e41131b27d19ceec1b8e66

add slot validation

library/psa_crypto.c

diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index d507a53..f0439e3 100755
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1500,6 +1500,8 @@
     if( status != PSA_SUCCESS )
         return( status );
     slot = &global_data.key_slots[key];
+    if( slot->type == PSA_KEY_TYPE_NONE )
+            return( PSA_ERROR_EMPTY_SLOT );
 
     cipher_info = mbedtls_cipher_info_from_psa( alg, key_type,
                                                 key_bits, &cipher_id );
@@ -1643,6 +1645,8 @@
     if( status != PSA_SUCCESS )
         return( status );
     slot = &global_data.key_slots[key];
+    if( slot->type == PSA_KEY_TYPE_NONE )
+            return( PSA_ERROR_EMPTY_SLOT );
 
     cipher_info = mbedtls_cipher_info_from_psa( alg, key_type,
                                                 key_bits, &cipher_id );