[Webkit-unassigned] [Bug 235384] New: AXIsolatedTree::updateChildren childrenIDs and children local variables could get out of sync
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Jan 19 14:35:29 PST 2022
https://bugs.webkit.org/show_bug.cgi?id=235384
Bug ID: 235384
Summary: AXIsolatedTree::updateChildren childrenIDs and
children local variables could get out of sync
Product: WebKit
Version: WebKit Nightly Build
Hardware: All
OS: All
Status: NEW
Severity: Normal
Priority: P2
Component: Accessibility
Assignee: webkit-unassigned at lists.webkit.org
Reporter: tyler_w at apple.com
CC: andresg_22 at apple.com,
webkit-bug-importer at group.apple.com
In AXIsolatedTree::updateChildren, we have this:
const auto& axChildren = axAncestor->children();
auto axChildrenIDs = axAncestor->childrenIDs();
Because the current version of AXCoreObject::childrenIDs always updates the underlying children if necessary, these two variables could get out of sync if childrenIDs actually performs an update after we already got children().
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