312304 2026-04-14 12:50:52 -0700 Popover test cases trigger nullptr dereference in WebKit 2026-04-15 20:20:37 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 275048 1 bfulgham bfulgham webkit-bug-importer oldest_to_newest 2200326 0 bfulgham 2026-04-14 12:50:52 -0700 Three upstream WPT tests are causing crashes when run in WebKit: imported/w3c/web-platform-tests/html/semantics/popovers/popover-events.html [ Crash ] imported/w3c/web-platform-tests/html/semantics/popovers/popover-focus-blur-crash.html [ Crash ] imported/w3c/web-platform-tests/html/semantics/popovers/popover-remove-attribute-during-focusing-steps.html [ Crash ] These are nullptr dereferences: ``` Thread 0 Crashed:: Dispatch queue: com.apple.main-thread: 0 com.apple.WebCore 0x11ac19d58 WebCore::PopoverData::setPreviouslyFocusedElement(WebCore::Element*) 1 com.apple.WebCore 0x119be1e64 WebCore::HTMLElement::showPopoverInternal(WebCore::HTMLElement*) 2 com.apple.WebCore 0x118c45ad4 WebCore::jsHTMLElementPrototypeFunction_showPopover(JSC::JSGlobalObject*, JSC::CallFrame*) 3 0x13281003c ``` 2200327 1 webkit-bug-importer 2026-04-14 12:51:06 -0700 <rdar://problem/174767317> 2200429 2 bfulgham 2026-04-14 16:42:25 -0700 Pull request: https://github.com/WebKit/WebKit/pull/62780 2200918 3 ews-feeder 2026-04-15 20:20:35 -0700 Committed 311343@main (5d9589eb2f70): <https://commits.webkit.org/311343@main> Reviewed commits have been landed. Closing PR #62780 and removing active labels.