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[3.13] gh-151126: Fix missing memory errors in _interpchannelsmodule.c (GH-151239) #151266

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[3.13] gh-151126: Fix missing memory errors in _interpchannelsmodule.c (GH-151239) #151266

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6 changes: 2 additions & 4 deletions Misc/NEWS.d/next/Core_and_Builtins/2026-06-09-10-28-30.gh-issue-151126.DKa6Sl.rst
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Original file line number Diff line number Diff line change
@@ -1,7 +1,5 @@
Fix a crash, when there's no memory left on a device,
which happened in:

- code compilation
- :func:`!_winapi.CreateProcess`
which happened in: code compilation, :mod:`!_interpchannels` module,
:func:`!_winapi.CreateProcess` function.

Now these places raise proper :exc:`MemoryError` errors.
6 changes: 5 additions & 1 deletion Modules/_interpchannelsmodule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -903,7 +903,8 @@ static _channelends *
_channelends_new(void)
{
_channelends *ends = GLOBAL_MALLOC(_channelends);
if (ends== NULL) {
if (ends == NULL) {
PyErr_NoMemory();
return NULL;
}
ends->numsendopen = 0;
Expand Down Expand Up @@ -1095,6 +1096,7 @@ _channel_new(PyThread_type_lock mutex, int unboundop)
{
_channel_state *chan = GLOBAL_MALLOC(_channel_state);
if (chan == NULL) {
PyErr_NoMemory();
return NULL;
}
chan->mutex = mutex;
Expand Down Expand Up @@ -1295,6 +1297,7 @@ _channelref_new(int64_t cid, _channel_state *chan)
{
_channelref *ref = GLOBAL_MALLOC(_channelref);
if (ref == NULL) {
PyErr_NoMemory();
return NULL;
}
ref->cid = cid;
Expand Down Expand Up @@ -1680,6 +1683,7 @@ _channel_set_closing(_channelref *ref, PyThread_type_lock mutex) {
}
chan->closing = GLOBAL_MALLOC(struct _channel_closing);
if (chan->closing == NULL) {
PyErr_NoMemory();
goto done;
}
chan->closing->ref = ref;
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