[Webkit-unassigned] [Bug 223911] New: Ensure that GlobalPropertyInfo is allocated on the stack.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Mar 29 21:18:56 PDT 2021
https://bugs.webkit.org/show_bug.cgi?id=223911
Bug ID: 223911
Summary: Ensure that GlobalPropertyInfo is allocated on the
stack.
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: mark.lam at apple.com
We rely on GlobalPropertyInfo being allocated on the stack to allow its JSValue value to be scanned by the GC. Unfortunately, an ASAN compilation would choose to allocate the GlobalPropertyInfo on a side buffer instead of directly on the stack. This prevents the GC doing the needed scan.
We'll fix this by suppressing ASAN on the functions that allocated GlobalPropertyInfo arrays.
rdar://75865742
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