# Crash report ### What happened? *args* [can be NULL as a result of](https://github.com/python/cpython/blob/d467d9246cbe0ce5dc149c4c74223bb8374ece73/Parser/action_helpers.c#L1130) `_Py_asdl_expr_seq_new`, and then [dereference happens](https://github.com/python/cpython/blob/d467d9246cbe0ce5dc149c4c74223bb8374ece73/Parser/action_helpers.c#L1134C9-L1134C51). Return value of _Py_asdl_expr_seq_new` is usually checked, for example [here](https://github.com/python/cpython/blob/d467d9246cbe0ce5dc149c4c74223bb8374ece73/Parser/action_helpers.c#L229C1-L232C6) and in other places. ### CPython versions tested on: 3.11 ### Operating systems tested on: Linux ### Output from running 'python -VV' on the command line: _No response_ <!-- gh-linked-prs --> ### Linked PRs * gh-126241 * gh-126243 * gh-126245 <!-- /gh-linked-prs -->
Crash report
What happened?
args can be NULL as a result of
_Py_asdl_expr_seq_new, and then dereference happens.Return value of _Py_asdl_expr_seq_new` is usually checked, for example here and in other places.
CPython versions tested on:
3.11
Operating systems tested on:
Linux
Output from running 'python -VV' on the command line:
No response
Linked PRs
NULLreturned by_Py_asdl_expr_seq_new#126241NULLreturned by_Py_asdl_expr_seq_new(GH-126241) #126243NULLreturned by_Py_asdl_expr_seq_new(GH-126241) #126245