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ffi enum type (when enum has no name) make memory leak #14286

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@avriltank

Description

@avriltank

Description

The following code:

<?php
$ffi = FFI::cdef("
    enum{
  //enum  TestEnum{  //if enum has a name there is no memory leak
        TEST_ONE=0,
        TEST_TWO=1,
    };
");
echo $ffi->TEST_TWO; //echo 1 
//the result is right but memory leak

i found the c ffi code when enum has no name make memory leak

void zend_ffi_make_enum_type(zend_ffi_dcl *dcl) /* {{{ */
{
	zend_ffi_type *type = pemalloc(sizeof(zend_ffi_type), FFI_G(persistent));
	type->kind = ZEND_FFI_TYPE_ENUM;
	type->attr = FFI_G(default_type_attr) | (dcl->attr & ZEND_FFI_ENUM_ATTRS);
	type->enumeration.tag_name = NULL;
	if (type->attr & ZEND_FFI_ATTR_PACKED) {
		type->size = zend_ffi_type_uint8.size;
		type->align = zend_ffi_type_uint8.align;
		type->enumeration.kind = ZEND_FFI_TYPE_UINT8;
	} else {
		type->size = zend_ffi_type_uint32.size;
		type->align = zend_ffi_type_uint32.align;
		type->enumeration.kind = ZEND_FFI_TYPE_UINT32;
	}
	dcl->type = ZEND_FFI_TYPE_MAKE_OWNED(type);
	dcl->attr &= ~ZEND_FFI_ENUM_ATTRS;
}

ffi_bad

PHP Version

php 8.3

Operating System

windows,linux

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