From 5a0a88c0f0763b32b4e43265ae9de2bfd6bfbcdd 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 (GH-150295) (cherry picked from commit e8545ed3eafbf349b51ea308126a67dc70416a62) Co-authored-by: Kumar Aditya --- Modules/_io/bufferedio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Modules/_io/bufferedio.c b/Modules/_io/bufferedio.c index 6b43161a73a610a..50769e419303fe9 100644 --- a/Modules/_io/bufferedio.c +++ b/Modules/_io/bufferedio.c @@ -1497,7 +1497,9 @@ 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,