From 19e31e27efa3169a77fb417e6882e56817807986 Mon Sep 17 00:00:00 2001 From: Carl Meyer Date: Tue, 23 May 2023 12:35:58 -0700 Subject: [PATCH] gh-103295: fix stack overwrite on 32-bit in perf map test harness --- Modules/_testinternalcapi.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/Modules/_testinternalcapi.c b/Modules/_testinternalcapi.c index b91f7b620fdb4e..8267dbf6779017 100644 --- a/Modules/_testinternalcapi.c +++ b/Modules/_testinternalcapi.c @@ -762,19 +762,24 @@ clear_extension(PyObject *self, PyObject *args) static PyObject * write_perf_map_entry(PyObject *self, PyObject *args) { + PyObject *code_addr_v; const void *code_addr; unsigned int code_size; const char *entry_name; - if (!PyArg_ParseTuple(args, "KIs", &code_addr, &code_size, &entry_name)) + if (!PyArg_ParseTuple(args, "OIs", &code_addr_v, &code_size, &entry_name)) return NULL; + code_addr = PyLong_AsVoidPtr(code_addr_v); + if (code_addr == NULL) { + return NULL; + } int ret = PyUnstable_WritePerfMapEntry(code_addr, code_size, entry_name); - if (ret == -1) { - PyErr_SetString(PyExc_OSError, "Failed to write performance map entry"); + if (ret < 0) { + PyErr_SetFromErrno(PyExc_OSError); return NULL; } - return Py_BuildValue("i", ret); + return PyLong_FromLong(ret); } static PyObject * pFad - Phonifier reborn

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