staticPyObject*element_subscr(PyObject*op,PyObject*item){ElementObject*self=_Element_CAST(op);if (PyIndex_Check(item)) {Py_ssize_ti=PyNumber_AsSsize_t(item,PyExc_IndexError);if (i==-1&&PyErr_Occurred()) {returnNULL;        }if (i<0&&self->extra)i+=self->extra->length;returnelement_getitem(op,i);    }elseif (PySlice_Check(item)) {Py_ssize_tstart,stop,step,slicelen,i;size_tcur;PyObject*list;if (!self->extra)returnPyList_New(0);/* Call _PyEval_SliceIndex -> _PyNumber_Index and reentrant to the interpreter again. */if (PySlice_Unpack(item,&start,&stop,&step)<0) {returnNULL;        }/* ... */// Crash: self->extra is a null pointer nowslicelen=PySlice_AdjustIndices(self->extra->length,&start,&stop,step);}

AddressSanitizer:DEADLYSIGNAL===================================================================11783==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x7638bd19b2a1 bp 0x7ffd815de790 sp 0x7ffd815de690 T0)==11783==The signal is caused by a READ memory access.==11783==Hint: address points to the zero page.    #0 0x7638bd19b2a1 in element_subscr Modules/_elementtree.c:1819    #1 0x7638bd19b2a1 in element_subscr Modules/_elementtree.c:1794    #2 0x5f64666f687c in PyObject_GetItem Objects/abstract.c:163    #3 0x5f64665ec668 in _PyEval_EvalFrameDefault Python/generated_cases.c.h:1143    #4 0x5f6466ac4ad6 in _PyEval_EvalFrame Include/internal/pycore_ceval.h:121    #5 0x5f6466ac4ad6 in _PyEval_Vector Python/ceval.c:2001    #6 0x5f6466ac4ad6 in PyEval_EvalCode Python/ceval.c:884    #7 0x5f6466c0a16e in run_eval_code_obj Python/pythonrun.c:1365    #8 0x5f6466c0a16e in run_mod Python/pythonrun.c:1459    #9 0x5f6466c0ee17 in pyrun_file Python/pythonrun.c:1293    #10 0x5f6466c0ee17 in _PyRun_SimpleFileObject Python/pythonrun.c:521    #11 0x5f6466c0f93c in _PyRun_AnyFileObject Python/pythonrun.c:81    #12 0x5f6466c82e3c in pymain_run_file_obj Modules/main.c:410    #13 0x5f6466c82e3c in pymain_run_file Modules/main.c:429    #14 0x5f6466c82e3c in pymain_run_python Modules/main.c:691    #15 0x5f6466c8471e in Py_RunMain Modules/main.c:772    #16 0x5f6466c8471e in pymain_main Modules/main.c:802    #17 0x5f6466c8471e in Py_BytesMain Modules/main.c:826    #18 0x7638bde2a1c9 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58    #19 0x7638bde2a28a in __libc_start_main_impl ../csu/libc-start.c:360    #20 0x5f646661e634 in _start (/home/jackfromeast/Desktop/entropy/targets/grammar-afl++-latest/targets/cpython/python+0x206634) (BuildId: 4d105290d0ad566a4d6f4f7b2f05fbc9e317b533)AddressSanitizer can not provide additional info.SUMMARY: AddressSanitizer: SEGV Modules/_elementtree.c:1819 in element_subscr==11783==ABORTING[Inferior 1 (process 11783) exited with code 01]