Bug 248827

Summary: REGRESSION (253865@main): Crashes under RenderLayerCompositor::updateScrollingNodeForViewportConstrainedRole
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: CompositingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal CC: simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Description Simon Fraser (smfr) 2022-12-06 10:28:12 PST
253865@main introduced a cluster of crashes where, under RenderLayerCompositor::updateScrollingNodeForViewportConstrainedRole(), a fixed or sticky layer would have a null viewportAnchorLayer().
Comment 1 Simon Fraser (smfr) 2022-12-06 10:28:25 PST
rdar://102619100
Comment 2 Simon Fraser (smfr) 2022-12-06 10:39:45 PST
Pull request: https://github.com/WebKit/WebKit/pull/7213
Comment 3 EWS 2022-12-06 18:31:11 PST
Committed 257455@main (df0e5116081b): <https://commits.webkit.org/257455@main>

Reviewed commits have been landed. Closing PR #7213 and removing active labels.