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Fix memory leak in test_suite_x509write with PSA crypto

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The documentation of mbedtls_pk_wrap_as_opaque is quite clear:

 * \param handle    Output: a PSA key handle.
 *                  It's the caller's responsibility to call
 *                  psa_destroy_key() on that handle after calling
 *                  mbedtls_pk_free() on the PK context.

But the test failed to call psa_destroy_key().

While at it, also use PSA_DONE(): it ensures that if we fail to destroy the
key, we'll get an explicit error message about it without the need for
valgrind.

This is a preliminary to adding a valgrind-based test for constant-flow code:
we need to make sure the rest of the tests are fully valgrind-clean, which
they weren't.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2020-08-20 09:59:33 +02:00
parent 7fe2c5f086
commit feb0396d20
1 changed files with 13 additions and 2 deletions
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15
tests/suites/test_suite_x509write.function
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@ -5,12 +5,20 @@
#include "mbedtls/pem.h"
#include "mbedtls/oid.h"
#include "mbedtls/rsa.h"
#if defined(MBEDTLS_USE_PSA_CRYPTO)
#include "psa/crypto.h"
#include "mbedtls/psa_util.h"
#include "test/psa_crypto_helpers.h"
#define PSA_INIT( ) PSA_ASSERT( psa_crypto_init( ) )
#else
/* Define empty macros so that we can use them in the preamble and teardown
* of every test function that uses PSA conditionally based on
* MBEDTLS_USE_PSA_CRYPTO. */
#define PSA_INIT( ) ( (void) 0 )
#define PSA_DONE( ) ( (void) 0 )
#endif
#if defined(MBEDTLS_RSA_C)
int mbedtls_rsa_decrypt_func( void *ctx, int mode, size_t *olen,
const unsigned char *input, unsigned char *output,
@ -156,7 +164,7 @@ void x509_csr_check_opaque( char *key_file, int md_type, int key_usage,
const char *subject_name = "C=NL,O=PolarSSL,CN=PolarSSL Server 1";
mbedtls_test_rnd_pseudo_info rnd_info;
psa_crypto_init();
PSA_INIT( );
memset( &rnd_info, 0x2a, sizeof( mbedtls_test_rnd_pseudo_info ) );
md_alg_psa = mbedtls_psa_translate_md( (mbedtls_md_type_t) md_type );
@ -184,9 +192,12 @@ void x509_csr_check_opaque( char *key_file, int md_type, int key_usage,
buf[pem_len] = '\0';
TEST_ASSERT( x509_crt_verifycsr( buf, pem_len + 1 ) == 0 );
exit:
mbedtls_x509write_csr_free( &req );
mbedtls_pk_free( &key );
psa_destroy_key( slot );
PSA_DONE( );
}
/* END_CASE */