From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Mon, 25 May 2026 09:36:22 +0000 (+0200)
Subject: [3.15] gh-150374: Fix double release of import lock in lazy import reification (GH... 
X-Git-Tag: v3.15.0b2~66
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=acd402ecdb7d04d8730d2d10352fa22823b0bd1c;p=thirdparty%2FPython%2Fcpython.git

[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 <lipengyu@kylinos.cn>
---

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 000000000000..7189ca186d2b
--- /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 aa4ee660fa75..fc1b3f1acbe0 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;
     }