https://github.com/python/cpython/commit/5498eba545e950c7550c924f2e458c740a689c69
commit: 5498eba545e950c7550c924f2e458c740a689c69
branch: main
author: pengyu lee <[email protected]>
committer: kumaraditya303 <[email protected]>
date: 2026-05-25T09:09:38Z
summary:
gh-150374: Fix double release of import lock in lazy import reification
(#150376)
files:
A
Misc/NEWS.d/next/Core_and_Builtins/2026-05-25-16-00-22.gh-issue-150374.Emu6d8.rst
M Python/import.c
diff --git
a/Misc/NEWS.d/next/Core_and_Builtins/2026-05-25-16-00-22.gh-issue-150374.Emu6d8.rst
b/Misc/NEWS.d/next/Core_and_Builtins/2026-05-25-16-00-22.gh-issue-150374.Emu6d8.rst
new file mode 100644
index 00000000000000..7189ca186d2b7e
--- /dev/null
+++
b/Misc/NEWS.d/next/Core_and_Builtins/2026-05-25-16-00-22.gh-issue-150374.Emu6d8.rst
@@ -0,0 +1 @@
+Fix double release of the import lock on lazy import reification errors.
diff --git a/Python/import.c b/Python/import.c
index 91164bc8043b22..3e470d2c22cfbd 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -3928,7 +3928,6 @@ _PyImport_LoadLazyImportTstate(PyThreadState *tstate,
PyObject *lazy_import)
return NULL;
}
else if (PySet_Add(importing, lazy_import) < 0) {
- _PyImport_ReleaseLock(interp);
goto error;
}
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