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patch 8.2.2538: crash when using Python list iterator

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Problem:    Crash when using Python list iterator.
Solution:   Increment the list reference count. (closes #7886)
This commit is contained in:
Bram Moolenaar
2021-02-21 19:12:47 +01:00
parent 027c4ab4d2
commit 21578271bb
3 changed files with 7 additions and 0 deletions
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2
src/if_py_both.h
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@@ -2815,6 +2815,7 @@ typedef struct
ListIterDestruct(listiterinfo_T *lii)
{
list_rem_watch(lii->list, &lii->lw);
list_unref(lii->list);
PyMem_Free(lii);
}
@@ -2850,6 +2851,7 @@ ListIter(ListObject *self)
list_add_watch(l, &lii->lw);
lii->lw.lw_item = l->lv_first;
lii->list = l;
++l->lv_refcount;
return IterNew(lii,
(destructorfun) ListIterDestruct, (nextfun) ListIterNext,