From a6c2d4ae3bd744610e1a8b70396effdabca1593d Mon Sep 17 00:00:00 2001
From: sobolevn <mail@sobolevn.me>
Date: Thu, 25 Jun 2026 10:04:02 +0300
Subject: [PATCH] gh-151763: Fix crash in `_interpqueues.create` on
 `MemoryError` (#152131)

---
 .../next/Library/2026-06-25-01-00-43.gh-issue-151763.wWeHBe.rst | 2 ++
 Modules/_interpqueuesmodule.c                                   | 1 +
 2 files changed, 3 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2026-06-25-01-00-43.gh-issue-151763.wWeHBe.rst

diff --git a/Misc/NEWS.d/next/Library/2026-06-25-01-00-43.gh-issue-151763.wWeHBe.rst b/Misc/NEWS.d/next/Library/2026-06-25-01-00-43.gh-issue-151763.wWeHBe.rst
new file mode 100644
index 00000000000..2f5e84027ad
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-06-25-01-00-43.gh-issue-151763.wWeHBe.rst
@@ -0,0 +1,2 @@
+Fix crash in :func:`!_interpqueues.create` whe :exc:`MemoryError`
+happens on queue creation.
diff --git a/Modules/_interpqueuesmodule.c b/Modules/_interpqueuesmodule.c
index 9979cd3457e..d203ddba7d9 100644
--- a/Modules/_interpqueuesmodule.c
+++ b/Modules/_interpqueuesmodule.c
@@ -1101,6 +1101,7 @@ queue_create(_queues *queues, Py_ssize_t maxsize,
     }
     int64_t qid = _queues_add(queues, queue);
     if (qid < 0) {
+        queue->alive = 0;
         _queue_clear(queue);
         GLOBAL_FREE(queue);
     }