From acd402ecdb7d04d8730d2d10352fa22823b0bd1c Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Mon, 25 May 2026 11:36:22 +0200 Subject: [PATCH] [3.15] gh-150374: Fix double release of import lock in lazy import reification (GH-150376) (#150378) gh-150374: Fix double release of import lock in lazy import reification (GH-150376) (cherry picked from commit 5498eba545e950c7550c924f2e458c740a689c69) Co-authored-by: pengyu lee --- .../2026-05-25-16-00-22.gh-issue-150374.Emu6d8.rst | 1 + Python/import.c | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) create mode 100644 Misc/NEWS.d/next/Core_and_Builtins/2026-05-25-16-00-22.gh-issue-150374.Emu6d8.rst 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 00000000000..7189ca186d2 --- /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 aa4ee660fa7..fc1b3f1acbe 100644 --- a/Python/import.c +++ b/Python/import.c @@ -3934,7 +3934,6 @@ _PyImport_LoadLazyImportTstate(PyThreadState *tstate, PyObject *lazy_import) return NULL; } else if (PySet_Add(importing, lazy_import) < 0) { - _PyImport_ReleaseLock(interp); goto error; }