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Add cleanup in functions for secure reason

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Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
This commit is contained in:
XiaokangQian
2021-10-28 08:03:38 +00:00
parent f26f6ade0c
commit 61bdbbc18b
2 changed files with 27 additions and 17 deletions
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24
library/ssl_tls13_generic.c
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@ -952,7 +952,7 @@ static int ssl_tls13_finished_in_postprocess_cli( mbedtls_ssl_context *ssl )
{
MBEDTLS_SSL_DEBUG_RET( 1,
"mbedtls_ssl_tls13_key_schedule_stage_application", ret );
return( ret );
goto cleanup;
}
ret = mbedtls_ssl_tls1_3_generate_application_keys(
@ -961,13 +961,16 @@ static int ssl_tls13_finished_in_postprocess_cli( mbedtls_ssl_context *ssl )
{
MBEDTLS_SSL_DEBUG_RET( 1,
"mbedtls_ssl_tls1_3_generate_application_keys", ret );
return( ret );
goto cleanup;
}
transform_application =
mbedtls_calloc( 1, sizeof( mbedtls_ssl_transform ) );
if( transform_application == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
{
ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
goto cleanup;
}
ret = mbedtls_ssl_tls13_populate_transform(
transform_application,
@ -978,13 +981,24 @@ static int ssl_tls13_finished_in_postprocess_cli( mbedtls_ssl_context *ssl )
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_tls13_populate_transform", ret );
return( ret );
goto cleanup;
}
ssl->transform_application = transform_application;
mbedtls_ssl_handshake_set_state( ssl, MBEDTLS_SSL_END_OF_EARLY_DATA );
return( 0 );
cleanup:
mbedtls_platform_zeroize( &traffic_keys, sizeof(mbedtls_ssl_key_set) );
if( ret != 0)
{
mbedtls_free( transform_application );
MBEDTLS_SSL_PEND_FATAL_ALERT(
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE,
MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
return( ret );
}
static int ssl_tls13_finished_in_postprocess( mbedtls_ssl_context* ssl )