New submission from STINNER Victor: On Windows x64, we get the following warning:
..\Objects\codeobject.c(106): warning C4244: '=' : conversion from 'Py_ssize_t' to 'unsigned char', possible loss of data [C:\buildbot.python.org\3.x.kloth-win64\build\PCbuild\pythoncore.vcxproj] Code: unsigned char *cell2arg = NULL; Py_ssize_t total_args = argcount + kwonlyargcount + ((flags & CO_VARARGS) != 0) + ((flags & CO_VARKEYWORDS) != 0); PyObject *cell = PyTuple_GET_ITEM(cellvars, i); for (j = 0; j < total_args; j++) { PyObject *arg = PyTuple_GET_ITEM(varnames, j); if (!PyUnicode_Compare(cell, arg)) { ====> cell2arg[i] = j; <===== HERE used_cell2arg = 1; break; } } total_args is not checked for being smaller than 256. Related issue: #9566. ---------- components: Interpreter Core messages: 191805 nosy: haypo priority: normal severity: normal status: open title: Possible integer overflow in PyCode_New() versions: Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue18295> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com