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Improve error message when running on outdated Windows OS with incomplete CET support #114839

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Merged
merged 1 commit into from
Apr 21, 2025
Merged

Improve error message when running on outdated Windows OS with incomplete CET support #114839

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6 changes: 5 additions & 1 deletion src/coreclr/vm/threads.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7706,7 +7706,11 @@ void Thread::StaticInitialize()
InitializeSpecialUserModeApc();

// When shadow stacks are enabled, support for special user-mode APCs with the necessary functionality is required
_ASSERTE_ALL_BUILDS(!AreShadowStacksEnabled() || UseSpecialUserModeApc());
if (AreShadowStacksEnabled() && !UseSpecialUserModeApc())
{
EEPOLICY_HANDLE_FATAL_ERROR_WITH_MESSAGE(COR_E_EXECUTIONENGINE,
W("Your Windows doesn't fully support CET. Please install all available Windows updates."));
}
#endif
}

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