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gh-115733: Fix crash involving exhausted list iterator (#115740)

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* gh-115733: Fix crash involving exhausted iterator

* Add blurb
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Sam Gross 2024-02-20 15:18:44 -05:00 • committed by GitHub
parent 494739e1f7
commit 520403ed4c
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6 changed files with 13 additions and 5 deletions
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Python/generated_cases.c.h generated
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@ -2560,7 +2560,7 @@
assert(Py_TYPE(iter) == &PyListIter_Type);
STAT_INC(FOR_ITER, hit);
PyListObject *seq = it->it_seq;
if ((size_t)it->it_index >= (size_t)PyList_GET_SIZE(seq)) {
if (seq == NULL || (size_t)it->it_index >= (size_t)PyList_GET_SIZE(seq)) {
it->it_index = -1;
#ifndef Py_GIL_DISABLED
if (seq != NULL) {