From 7646b10a629e3d10eafdd297e275a24409379b7e Mon Sep 17 00:00:00 2001
From: Ken Jin <kenjin4096@gmail.com>
Date: Tue, 13 Jan 2026 19:30:06 +0000
Subject: [PATCH 1/2] Limit executor growth

---
 Python/optimizer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Python/optimizer.c b/Python/optimizer.c
index 79ac179d0b710a..8469966e379b98 100644
--- a/Python/optimizer.c
+++ b/Python/optimizer.c
@@ -72,6 +72,9 @@ get_index_for_executor(PyCodeObject *code, _Py_CODEUNIT *instr)
     }
     assert(size <= capacity);
     if (size == capacity) {
+        if (capacity * 2 >= MAX_EXECUTORS_SIZE) {
+            return -1;
+        }
         /* Array is full. Grow array */
         int new_capacity = capacity ? capacity * 2 : 4;
         _PyExecutorArray *new = PyMem_Realloc(

From ed05c8ebbd444a0943737a86c175ffcdfe8ed9a1 Mon Sep 17 00:00:00 2001
From: "blurb-it[bot]" <43283697+blurb-it[bot]@users.noreply.github.com>
Date: Tue, 13 Jan 2026 19:32:02 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=F0=9F=93=9C=F0=9F=A4=96=20Added=20by=20blu?=
 =?UTF-8?q?rb=5Fit.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../2026-01-13-19-31-56.gh-issue-143807.H5KP1C.rst               | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 Misc/NEWS.d/next/Core_and_Builtins/2026-01-13-19-31-56.gh-issue-143807.H5KP1C.rst

diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-01-13-19-31-56.gh-issue-143807.H5KP1C.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-01-13-19-31-56.gh-issue-143807.H5KP1C.rst
new file mode 100644
index 00000000000000..eb1a74ce784e7e
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2026-01-13-19-31-56.gh-issue-143807.H5KP1C.rst
@@ -0,0 +1 @@
+Place a limit on the number of JIT executors.