Commit 68c8ea25 authored by Victor Stinner's avatar Victor Stinner

Issue #18408: Fix _Pickler_New() and _Unpickler_New(): initialize all

attributes before handling errors

_Pickler_New() now calls PyObject_GC_Del() instead of Py_DECREF() on error,
because the pickle object is created using PyObject_GC_New().

Fix a crash in the destructor when an attribute is not initiallized.
parent 3bf5f530
......@@ -774,18 +774,15 @@ _Pickler_New(void)
self->fast_nesting = 0;
self->fix_imports = 0;
self->fast_memo = NULL;
self->memo = PyMemoTable_New();
if (self->memo == NULL) {
Py_DECREF(self);
return NULL;
}
self->max_output_len = WRITE_BUF_SIZE;
self->output_len = 0;
self->memo = PyMemoTable_New();
self->output_buffer = PyBytes_FromStringAndSize(NULL,
self->max_output_len);
if (self->output_buffer == NULL) {
Py_DECREF(self);
if (self->memo == NULL || self->output_buffer == NULL) {
PyObject_GC_Del(self);
return NULL;
}
return self;
......@@ -1136,20 +1133,6 @@ _Unpickler_New(void)
if (self == NULL)
return NULL;
self->stack = (Pdata *)Pdata_New();
if (self->stack == NULL) {
Py_DECREF(self);
return NULL;
}
memset(&self->buffer, 0, sizeof(Py_buffer));
self->memo_size = 32;
self->memo = _Unpickler_NewMemo(self->memo_size);
if (self->memo == NULL) {
Py_DECREF(self);
return NULL;
}
self->arg = NULL;
self->pers_func = NULL;
self->input_buffer = NULL;
......@@ -1167,6 +1150,15 @@ _Unpickler_New(void)
self->marks_size = 0;
self->proto = 0;
self->fix_imports = 0;
memset(&self->buffer, 0, sizeof(Py_buffer));
self->memo_size = 32;
self->memo = _Unpickler_NewMemo(self->memo_size);
self->stack = (Pdata *)Pdata_New();
if (self->memo == NULL || self->stack == NULL) {
Py_DECREF(self);
return NULL;
}
return self;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment