From 48b5cab9dcbdab004e1ebd3095a7e637b5964b6c Mon Sep 17 00:00:00 2001 From: Yongtao Huang Date: Fri, 30 Jan 2026 02:50:54 +0800 Subject: [PATCH] [3.13] gh-144307: Fix a reference leak during module teardown (GH-144308) (cherry picked from commit 219b7ac9d562701bbde21d7e17845c4942b83338) Co-authored-by: Yongtao Huang Signed-off-by: Yongtao Huang Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> --- .../2026-01-29-02-18-08.gh-issue-144307.CLbm_o.rst | 1 + Python/pylifecycle.c | 1 + 2 files changed, 2 insertions(+) create mode 100644 Misc/NEWS.d/next/Core and Builtins/2026-01-29-02-18-08.gh-issue-144307.CLbm_o.rst diff --git a/Misc/NEWS.d/next/Core and Builtins/2026-01-29-02-18-08.gh-issue-144307.CLbm_o.rst b/Misc/NEWS.d/next/Core and Builtins/2026-01-29-02-18-08.gh-issue-144307.CLbm_o.rst new file mode 100644 index 00000000000000..d6928e643dccd3 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2026-01-29-02-18-08.gh-issue-144307.CLbm_o.rst @@ -0,0 +1 @@ +Prevent a reference leak in module teardown at interpreter finalization. diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c index bfa1fe4f603682..8ba9b2bd006f02 100644 --- a/Python/pylifecycle.c +++ b/Python/pylifecycle.c @@ -1609,6 +1609,7 @@ finalize_remove_modules(PyObject *modules, int verbose) PyObject *value = PyObject_GetItem(modules, key); if (value == NULL) { PyErr_FormatUnraisable("Exception ignored on removing modules"); + Py_DECREF(key); continue; } CLEAR_MODULE(key, value);