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LibJS: Do not invoke Cell::vm in constructors before Cell is constructed

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In a subclass of Cell, we cannot use Cell::vm() before the base Cell
object itself is constructed. Use the Realm's VM instead.

This was caught by UBSAN with vptr sanitation enabled.
This commit is contained in:
Timothy Flynn 2022-09-14 19:10:27 -04:00 • committed by Andreas Kling
commit 85e313077a
Notes: sideshowbarker 2024-07-17 14:33:07 +09:00
46 changed files with 97 additions and 97 deletions
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2
Userland/Libraries/LibJS/Runtime/Temporal/InstantConstructor.cpp
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@ -14,7 +14,7 @@ namespace JS::Temporal {
// 8.1 The Temporal.Instant Constructor, https://tc39.es/proposal-temporal/#sec-temporal-instant-constructor
InstantConstructor::InstantConstructor(Realm& realm)
: NativeFunction(vm().names.Instant.as_string(), *realm.intrinsics().function_prototype())
: NativeFunction(realm.vm().names.Instant.as_string(), *realm.intrinsics().function_prototype())
{
}