commit ca466c89b09e2ad7ae23e47a1142c0f9129c309a
author Nir Sonnenschein <nir.sonnenschein@arm.com> Mon Jun 04 16:43:12 2018 +0300
committer itayzafrir <itay.zafrir@arm.com> Wed Sep 05 12:44:17 2018 +0300
tree fbfa9c80d43ab430a4e43045972f64393af24a97
parent c460291714754ca4ab56b5fe6292139555805f95

Set output length to safe value

library/psa_crypto.c

diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index c1c47d2..ba688bc 100755
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1422,6 +1422,7 @@
     key_slot_t *slot;
     (void) salt;
     (void) salt_length;
+    *output_length = 0;
 
     if( key == 0 || key > MBEDTLS_PSA_KEY_SLOT_COUNT )
         return( PSA_ERROR_INVALID_ARGUMENT );
@@ -1495,6 +1496,7 @@
     key_slot_t *slot;
     (void) salt;
     (void) salt_length;
+    *output_length = 0;
 
     if( key == 0 || key > MBEDTLS_PSA_KEY_SLOT_COUNT )
         return( PSA_ERROR_EMPTY_SLOT );