From ad5d5c23baed1bb69c4885c021398c4c791953a1 Mon Sep 17 00:00:00 2001
From: lipengyu <lipengyu@kylinos.cn>
Date: Mon, 25 May 2026 17:29:32 +0800
Subject: [PATCH 1/3] Fix PyLong ref leak in C API monitoring events

---
 Python/instrumentation.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Python/instrumentation.c b/Python/instrumentation.c
index 51bcbfdb3b6c55..0af2070b5cd983 100644
--- a/Python/instrumentation.c
+++ b/Python/instrumentation.c
@@ -2630,8 +2630,9 @@ capi_call_instrumentation(PyMonitoringState *state, PyObject *codelike, int32_t
         PyErr_SetString(PyExc_ValueError, "offset must be non-negative");
         return -1;
     }
+    PyObject *offset_obj = NULL;
     if (event != PY_MONITORING_EVENT_LINE) {
-        PyObject *offset_obj = PyLong_FromLong(offset);
+        offset_obj = PyLong_FromLong(offset);
         if (offset_obj == NULL) {
             return -1;
         }
@@ -2672,6 +2673,7 @@ capi_call_instrumentation(PyMonitoringState *state, PyObject *codelike, int32_t
             }
         }
     }
+    Py_XDECREF(offset_obj);
     return err;
 }
 

From 81b579c4b548c7273fb79ec407b78ffb7440491a Mon Sep 17 00:00:00 2001
From: lipengyu <lipengyu@kylinos.cn>
Date: Mon, 25 May 2026 17:54:08 +0800
Subject: [PATCH 2/3] add NEWS entry

---
 .../next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst    | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst

diff --git a/Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst b/Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst
new file mode 100644
index 00000000000000..49d9dc50520fa9
--- /dev/null
+++ b/Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst
@@ -0,0 +1 @@
+Fix a reference leak of the offset argument in C API monitoring event calls.

From a52ca4d46be6d5456552d54726ace79987511cda Mon Sep 17 00:00:00 2001
From: lipengyu <lipengyu@kylinos.cn>
Date: Mon, 25 May 2026 18:02:48 +0800
Subject: [PATCH 3/3] delete NEWS entry

---
 .../next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst    | 1 -
 1 file changed, 1 deletion(-)
 delete mode 100644 Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst

diff --git a/Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst b/Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst
deleted file mode 100644
index 49d9dc50520fa9..00000000000000
--- a/Misc/NEWS.d/next/C_API/2026-05-25-17-53-16.gh-issue-150379.1y54ks.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix a reference leak of the offset argument in C API monitoring event calls.