From e8545ed3eafbf349b51ea308126a67dc70416a62 Mon Sep 17 00:00:00 2001 From: Kumar Aditya Date: Sat, 23 May 2026 14:27:13 +0530 Subject: [PATCH] gh-149816: add missing critical section on self in buffered_iternext (#150295) --- Modules/_io/bufferedio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Modules/_io/bufferedio.c b/Modules/_io/bufferedio.c index 0fdae7b2d21..5537947f6a5 100644 --- a/Modules/_io/bufferedio.c +++ b/Modules/_io/bufferedio.c @@ -1509,7 +1509,9 @@ buffered_iternext(PyObject *op) tp == state->PyBufferedRandom_Type) { /* Skip method call overhead for speed */ + Py_BEGIN_CRITICAL_SECTION(self); line = _buffered_readline(self, -1); + Py_END_CRITICAL_SECTION(); } else { line = PyObject_CallMethodNoArgs((PyObject *)self,