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fix: null dereference in get_SelectionContainer when no selection container exists #16091

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Merged
microsoft-github-policy-service merged 2 commits into from
May 7, 2026
+12 −0
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fix: null dereference in get_SelectionContainer when no selection container exists #16091

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57d9565
fix: null dereference in get_SelectionContainer when no container found
Copilot May 6, 2026
6ad847b
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vineethkuttan May 7, 2026
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7 changes: 7 additions & 0 deletions change/react-native-windows-0ddd05a5-b75b-423a-a461-6dcafc41d3b4.json
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
{
"type": "prerelease",
"comment": "fix: null dereference in get_SelectionContainer when no container found",
"packageName": "react-native-windows",
"email": "66076509+vineethkuttan@users.noreply.github.com",
"dependentChangeType": "patch"
}
5 changes: 5 additions & 0 deletions vnext/Microsoft.ReactNative/Fabric/Composition/CompositionDynamicAutomationProvider.cpp
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Expand Up @@ -1064,6 +1064,11 @@ HRESULT __stdcall CompositionDynamicAutomationProvider::get_SelectionContainer(I
*pRetVal = nullptr;

auto selectionContainerView = GetSelectionContainer();
// Per UIA spec, returning S_OK with *pRetVal == nullptr is correct when the element
// is not contained within a selection container.
if (!selectionContainerView)
return S_OK;

auto uiaProvider =
winrt::get_self<winrt::Microsoft::ReactNative::implementation::ComponentView>(selectionContainerView)
->EnsureUiaProvider();
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