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

(cherry picked from commit f932321)

Co-authored-by: Shamil <[email protected]>

Author: ashm-dev

Misc/NEWS.d/next/Core and Builtins/2025-10-18-21-29-45.gh-issue-140306.xS5CcS.rst

@@ -0,0 +1,2 @@
+Fix memory leaks in cross-interpreter channel operations and shared
+namespace handling.

Modules/_interpchannelsmodule.c

@@ -562,7 +562,7 @@ _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;
     }
 

Modules/_interpqueuesmodule.c

@@ -435,7 +435,7 @@ _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;
 }
 

Python/crossinterp.c

@@ -455,8 +455,8 @@ _release_xid_data(_PyCrossInterpreterData *data, int rawfree)
 {
     PyObject *exc = PyErr_GetRaisedException();
     int res = rawfree
-        ? _PyCrossInterpreterData_Release(data)
-        : _PyCrossInterpreterData_ReleaseAndRawFree(data);
+        ? _PyCrossInterpreterData_ReleaseAndRawFree(data);
+        : _PyCrossInterpreterData_Release(data)
     if (res < 0) {
         /* The owning interpreter is already destroyed. */
         _PyCrossInterpreterData_Clear(NULL, data);