diff options
Diffstat (limited to 'Python/compile.c')
| -rw-r--r-- | Python/compile.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Python/compile.c b/Python/compile.c index 0b5ba6c..5c67987 100644 --- a/Python/compile.c +++ b/Python/compile.c @@ -379,6 +379,11 @@ optimize_code(PyObject *code, PyObject* consts, PyObject *names) if (codestr == NULL) goto exitUnchanged; codestr = memcpy(codestr, PyString_AS_STRING(code), codelen); + + /* Avoid situations where jump retargeting could overflow */ + if (codelen > 65000) + goto exitUnchanged; + blocks = markblocks(codestr, codelen); if (blocks == NULL) { PyMem_Free(codestr); |