[Webkit-unassigned] [Bug 19076] New: SquirrelFish: RegisterFile can be corrupted if implictly reenter global scope with no declared vars
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu May 15 05:02:23 PDT 2008
http://bugs.webkit.org/show_bug.cgi?id=19076
Summary: SquirrelFish: RegisterFile can be corrupted if implictly
reenter global scope with no declared vars
Product: WebKit
Version: 526+ (Nightly build)
Platform: Macintosh
OS/Version: Mac OS X 10.5
Status: NEW
Keywords: SquirrelFish, SquirrelFishBlocker
Severity: Blocker
Priority: P1
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: oliver at apple.com
CC: mjs at apple.com, ggaren at apple.com, cwzwarich at uwaterloo.ca
Seen on http://informationliberation.com/ - I cannot workout how to trigger
this myself, but the issue is when generating globalcode we use the existence
of globals to tell us that we've initialised "this" in the global scope. But
if we have re-entered and no variables have been defined yet we re-add this,
resulting in us trying to increase the number of globals in the containing
scope, leading to badness.
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