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ASAN heap-use-after-free in Item_exists_subselect::is_top_level_item

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check that we can do type casting
This commit is contained in:
Oleksandr Byelkin 2021-01-29 11:18:06 +01:00
parent 33ede50f20
commit 17867608a2
1 changed files with 3 additions and 1 deletions
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4
sql/item_cmpfunc.cc
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@ -1234,7 +1234,9 @@ longlong Item_func_truth::val_int()
bool Item_in_optimizer::is_top_level_item()
{
return ((Item_in_subselect *)args[1])->is_top_level_item();
if (!invisible_mode())
return ((Item_in_subselect *)args[1])->is_top_level_item();
return false;
}