From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Thu, 25 Jun 2026 07:32:24 +0000 (+0200)
Subject: [3.15] gh-151763: Fix crash in `_interpqueues.create` on `MemoryError` (GH-152131... 
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=703c9bf976227f2d5b90e9dfe47564ab345a7383;p=thirdparty%2FPython%2Fcpython.git

[3.15] gh-151763: Fix crash in `_interpqueues.create` on `MemoryError` (GH-152131) (#152158)

gh-151763: Fix crash in `_interpqueues.create` on `MemoryError` (GH-152131)
(cherry picked from commit a6c2d4ae3bd744610e1a8b70396effdabca1593d)

Co-authored-by: sobolevn <mail@sobolevn.me>
---

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 000000000000..2f5e84027ad3
--- /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 9979cd3457e1..d203ddba7d9c 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);
     }