commit 70b72f0f96d0a78e7cb154ae64356c82d06ac901
author Serhiy Storchaka <storchaka@gmail.com> Tue Nov 08 23:12:46 2016 +0200
committer Serhiy Storchaka <storchaka@gmail.com> Tue Nov 08 23:12:46 2016 +0200
tree a656163725e5fd0352d1b66582f1a9ab1fe95236
parent eb20fcae144c70f6210872bdb699731ba66fb9f8

Fixed possible abort in ceval loop if _PyUnicode_FromId() fails.
Every opcode should end with DISPATCH() or goto error.

Python/ceval.c

diff --git a/Python/ceval.c b/Python/ceval.c
index e9d0cbb..7b40518 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2196,7 +2196,7 @@
             else {
                 PyObject *build_class_str = _PyUnicode_FromId(&PyId___build_class__);
                 if (build_class_str == NULL)
-                    break;
+                    goto error;
                 bc = PyObject_GetItem(f->f_builtins, build_class_str);
                 if (bc == NULL) {
                     if (PyErr_ExceptionMatches(PyExc_KeyError))