commit 191af1313ae192c8f0a9bf5eb3c892eefa42605f
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Thu Dec 13 10:15:30 2018 +0100
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Tue Dec 18 12:22:40 2018 +0100
tree 476120eba06c2e015dd045df8d76651a3649a2d0
parent 3178d1a997b4a2c7b706f1537005f8e2b54a4fa4

Add param validation for mbedtls_aes_crypt_xts()

library/aes.c

diff --git a/library/aes.c b/library/aes.c
index 2da86c7..c15022b 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -1182,6 +1182,12 @@
     unsigned char prev_tweak[16];
     unsigned char tmp[16];
 
+    AES_VALIDATE_RET( ctx != NULL );
+    AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
+                      mode == MBEDTLS_AES_DECRYPT );
+    AES_VALIDATE_RET( input != NULL );
+    AES_VALIDATE_RET( output != NULL );
+
     /* Data units must be at least 16 bytes long. */
     if( length < 16 )
         return MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH;