mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-10-09 16:34:44 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 17

bpo-31770: Prevent a crash and refleaks when calling sqlite3.Cursor.__init__() more than once (GH-3968) (#4301)

Browse source 
(cherry picked from commit e56ab746a9)
This commit is contained in:
Miss Islington (bot) 2017-11-06 16:44:23 -08:00 • committed by Victor Stinner
parent a6ffec2e88
commit 9684cf69e3
3 changed files with 27 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

15
Modules/_sqlite/cursor.c
View file

@ -39,21 +39,20 @@ static int pysqlite_cursor_init(pysqlite_Cursor* self, PyObject* args, PyObject*
}
Py_INCREF(connection);
self->connection = connection;
self->statement = NULL;
self->next_row = NULL;
self->in_weakreflist = NULL;
Py_XSETREF(self->connection, connection);
Py_CLEAR(self->statement);
Py_CLEAR(self->next_row);
self->row_cast_map = PyList_New(0);
Py_XSETREF(self->row_cast_map, PyList_New(0));
if (!self->row_cast_map) {
return -1;
}
Py_INCREF(Py_None);
self->description = Py_None;
Py_XSETREF(self->description, Py_None);
Py_INCREF(Py_None);
self->lastrowid= Py_None;
Py_XSETREF(self->lastrowid, Py_None);
self->arraysize = 1;
self->closed = 0;
@ -62,7 +61,7 @@ static int pysqlite_cursor_init(pysqlite_Cursor* self, PyObject* args, PyObject*
self->rowcount = -1L;
Py_INCREF(Py_None);
self->row_factory = Py_None;
Py_XSETREF(self->row_factory, Py_None);
if (!pysqlite_check_thread(self->connection)) {
return -1;