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gh-140306: Fix memory leaks in cross-interpreter data handling (GH-140307)

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Shamil 2025-10-19 22:24:28 +03:00 • committed by GitHub
parent bad8d6de37
commit f9323213c9
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4 changed files with 16 additions and 5 deletions
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2
Misc/NEWS.d/next/Core_and_Builtins/2025-10-18-21-29-45.gh-issue-140306.xS5CcS.rst Normal file
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@ -0,0 +1,2 @@
Fix memory leaks in cross-interpreter channel operations and shared
namespace handling.

2
Modules/_interpchannelsmodule.c
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@ -580,7 +580,7 @@ _channelitem_clear_data(_channelitem *item, int removed)
{
if (item->data != NULL) {
// It was allocated in channel_send().
(void)_release_xid_data(item->data, XID_IGNORE_EXC & XID_FREE);
(void)_release_xid_data(item->data, XID_IGNORE_EXC | XID_FREE);
item->data = NULL;
}

2
Modules/_interpqueuesmodule.c
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@ -436,7 +436,7 @@ _queueitem_clear_data(_queueitem *item)
return;
}
// It was allocated in queue_put().
(void)_release_xid_data(item->data, XID_IGNORE_EXC & XID_FREE);
(void)_release_xid_data(item->data, XID_IGNORE_EXC | XID_FREE);
item->data = NULL;
}

15
Python/crossinterp.c
View file

@ -1153,8 +1153,8 @@ _release_xid_data(_PyXIData_t *xidata, int rawfree)
{
PyObject *exc = PyErr_GetRaisedException();
int res = rawfree
? _PyXIData_Release(xidata)
: _PyXIData_ReleaseAndRawFree(xidata);
? _PyXIData_ReleaseAndRawFree(xidata)
: _PyXIData_Release(xidata);
if (res < 0) {
/* The owning interpreter is already destroyed. */
_PyXIData_Clear(NULL, xidata);
@ -1805,6 +1805,15 @@ _PyXI_InitFailureUTF8(_PyXI_failure *failure,
int
_PyXI_InitFailure(_PyXI_failure *failure, _PyXI_errcode code, PyObject *obj)
{
*failure = (_PyXI_failure){
.code = code,
.msg = NULL,
.msg_owned = 0,
};
if (obj == NULL) {
return 0;
}
PyObject *msgobj = PyObject_Str(obj);
if (msgobj == NULL) {
return -1;
@ -1813,7 +1822,7 @@ _PyXI_InitFailure(_PyXI_failure *failure, _PyXI_errcode code, PyObject *obj)
// That happens automatically in _capture_current_exception().
const char *msg = _copy_string_obj_raw(msgobj, NULL);
Py_DECREF(msgobj);
if (PyErr_Occurred()) {
if (msg == NULL) {
return -1;
}
*failure = (_PyXI_failure){