Ensure that mbedtls_pk_parse_key() does not allocate 0 bytes
@@ -1274,6 +1274,9 @@ int mbedtls_pk_parse_key( mbedtls_pk_context *pk,
{
unsigned char *key_copy;
+ if( keylen == 0 )
+ return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
+
if( ( key_copy = mbedtls_calloc( 1, keylen ) ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
