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gh-147998: Fix possible memory leak in _pop_preserved (crossinterp.c) #147999

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gh-147998: Fix possible memory leak in _pop_preserved (crossinterp.c) #147999

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maurycy Apr 2, 2026
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maurycy Apr 2, 2026
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Merge branch 'main' into maurycy/pop_preserved_shadowing
maurycy Apr 2, 2026
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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2026-04-02-13-25-09.gh-issue-147998.wnzkRT.rst
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@@ -0,0 +1,3 @@
Fixed a memory leak in interpreter helper calls so cleanup works when an
operation falls across interpreter boundaries. Patch by Maurycy
Pawłowski-Wieroński.
2 changes: 1 addition & 1 deletion Python/crossinterp.c
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Expand Up @@ -2965,7 +2965,7 @@ _pop_preserved(_PyXI_session *session,
*p_xidata = NULL;
}
else {
_PyXI_namespace *xidata = _create_sharedns(session->_preserved);
xidata = _create_sharedns(session->_preserved);
if (xidata == NULL) {
failure.code = _PyXI_ERR_PRESERVE_FAILURE;
goto error;
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