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Zero-initialize the return-value range in the Leave2 slow path #135449

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Merged
lateralusX merged 1 commit into from
Oct 19, 2026
Merged

Zero-initialize the return-value range in the Leave2 slow path #135449

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5 changes: 4 additions & 1 deletion src/coreclr/vm/proftoeeinterfaceimpl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -10921,7 +10921,10 @@ HCIMPL2(EXTERN_C void, ProfileLeave, UINT_PTR clientData, void * platformSpecifi
// Whidbey Slow-Path ELT
//
COR_PRF_FRAME_INFO frameInfo = 0;
COR_PRF_FUNCTION_ARGUMENT_RANGE argumentRange;
// Zero-initialized: the query leaves the range untouched when it returns early with an error, and
// when COR_PRF_ENABLE_FUNCTION_RETVAL is off (this path is also taken for FRAME_INFO or
// STACK_SNAPSHOT alone). The hook then receives an empty range instead of indeterminate values.
COR_PRF_FUNCTION_ARGUMENT_RANGE argumentRange = {};

HRESULT hr = ProfilingGetFunctionLeave3Info(functionId, (COR_PRF_ELT_INFO)&eltInfo, &frameInfo, &argumentRange);
_ASSERTE(hr == S_OK);
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