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No issue - avoid potential underflow in StructuredClone.

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Prevents potential loop-around if there's bogus internal Map data.
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Moonchild 2025-02-16 19:35:29 +01:00 • committed by roytam1
commit 3bac3ab0b5
1 changed files with 2 additions and 0 deletions
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2
js/src/vm/StructuredClone.cpp
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@ -1700,6 +1700,8 @@ JSStructuredCloneWriter::write(HandleValue v)
return false;
if (cls == ESClass::Map) {
if (!counts.back())
return false;
counts.back()--;
RootedValue val(context(), entries.back());
entries.popBack();