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LibGUI: Check that AutocompleteBox's selection row is valid

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Previously we didn't check that the selection's row index is in a valid
range before attempting to access its data via the model.

This could cause an out-of-bounds access to the model's Vector of
suggestions.

I think this should fix #7404, but I can't verify it does because
I wasn't able to reproduce it on my machine.
This commit is contained in:
Itamar 2021-05-24 22:54:23 +03:00 • committed by Andreas Kling
parent 7a4445a1fe
commit 7c2941d4ea
Notes: sideshowbarker 2024-07-18 17:05:45 +09:00
1 changed files with 1 additions and 1 deletions
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2
Userland/Libraries/LibGUI/AutocompleteProvider.cpp
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@ -168,7 +168,7 @@ void AutocompleteBox::apply_suggestion()
return;
auto selected_index = m_suggestion_view->selection().first();
if (!selected_index.is_valid())
if (!selected_index.is_valid() || !m_suggestion_view->model()->is_valid(selected_index))
return;
auto suggestion_index = m_suggestion_view->model()->index(selected_index.row(), AutocompleteSuggestionModel::Column::Name);