Fund: Layout crash: LibWeb/Layout/Node.cpp:139 VERIFICATION FAILED: nearest_ancestor_box

Reduced sample:

<!DOCTYPE html>
<html lang="en-US">
  <head>
    <style>
      .test:after,
      .test:before {
        content: "";
        display: table;
      }

      nav {
        display: table;
        margin: 0 auto;
      }

      ul > li {
        float: left;
      }
    </style>
  </head>
  <body>
    <nav>
      <ul>
        <li>hello world</li>
      </ul>
      <div class="test"></div>
    </nav>
  </body>
</html>

Crash log:

VERIFICATION FAILED: nearest_ancestor_box at /Libraries/LibWeb/Layout/Node.cpp:139
/release/lib/liblagom-ak.so.0(ak_verification_failed+0xef) [0x7f56b83f714f]
/release/lib/liblagom-web.so.0(+0xad036d) [0x7f56b981f36d]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::place_block_level_element_in_normal_flow_horizontally(Web::Layout::Box const&, Web::Layout::AvailableSpace const&) 0x105) [0x7f56b97daf85]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0x645) [0x7f56b97da185]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::AvailableSpace const&) 0x9e) [0x7f56b97d3fae]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0xa02) [0x7f56b97da542]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::AvailableSpace const&) 0x9e) [0x7f56b97d3fae]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::run(Web::Layout::AvailableSpace const&) 0xda) [0x7f56b97d396a]
/release/lib/liblagom-web.so.0 Web::Layout::FormattingContext::calculate_min_content_width(Web::Layout::Box const&) const 0x1d0) [0x7f56b97eb740]
/release/lib/liblagom-web.so.0 Web::Layout::TableFormattingContext::compute_cell_measures() 0x339) [0x7f56b9830c39]
/release/lib/liblagom-web.so.0 Web::Layout::TableFormattingContext::run_until_width_calculation(Web::Layout::AvailableSpace const&) 0x67) [0x7f56b9839a67]
/release/lib/liblagom-web.so.0 Web::Layout::FormattingContext::compute_table_box_width_inside_table_wrapper(Web::Layout::Box const&, Web::Layout::AvailableSpace const&) 0x2d7) [0x7f56b97ec827]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::compute_width(Web::Layout::Box const&, Web::Layout::AvailableSpace const&) 0x411) [0x7f56b97d4981]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0x637) [0x7f56b97da177]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::AvailableSpace const&) 0x9e) [0x7f56b97d3fae]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0xa02) [0x7f56b97da542]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::AvailableSpace const&) 0x9e) [0x7f56b97d3fae]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0xa02) [0x7f56b97da542]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::AvailableSpace const&) 0x9e) [0x7f56b97d3fae]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::run(Web::Layout::AvailableSpace const&) 0xda) [0x7f56b97d396a]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0x8e2) [0x7f56b97da422]
/release/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::AvailableSpace const&) 0x9e) [0x7f56b97d3fae]
/release/lib/liblagom-web.so.0 Web::DOM::Document::update_layout() 0x2b4) [0x7f56b953fd94]
/release/lib/liblagom-web.so.0 Web::HTML::EventLoop::update_the_rendering() 0x2b4) [0x7f56b9666c04]
/release/lib/liblagom-web.so.0(+0x61130f) [0x7f56b936030f]
/release/lib/liblagom-web.so.0 Web::HTML::EventLoop::process() 0x51) [0x7f56b9666331]
/release/lib/liblagom-web.so.0(+0x61130f) [0x7f56b936030f]
/release/lib/liblagom-core.so.0(+0x22f2f) [0x7f56b85d7f2f]
/release/lib/liblagom-core.so.0 Core::EventReceiver::dispatch_event(Core::Event&, Core::EventReceiver*) 0x75) [0x7f56b85d7405]
/release/lib/liblagom-webview.so.0(+0xc9fa0) [0x7f56ba805fa0]
/lib/x86_64-linux-gnu/libQt6Core.so.6(+0x1ac023) [0x7f56baa0e023]
/lib/x86_64-linux-gnu/libQt6Core.so.6 QTimer::timeout(QTimer::QPrivateSignal) 0x3e) [0x7f56baa1c4be]
/lib/x86_64-linux-gnu/libQt6Core.so.6 QObject::event(QEvent*) 0x1df) [0x7f56baa0262f]
/lib/x86_64-linux-gnu/libQt6Core.so.6 QCoreApplication::notifyInternal2(QObject*, QEvent*) 0xfd) [0x7f56ba9b5a2d]
/lib/x86_64-linux-gnu/libQt6Core.so.6 QTimerInfoList::activateTimers() 0x333) [0x7f56bab1e203]
/lib/x86_64-linux-gnu/libQt6Core.so.6(+0x37bc44) [0x7f56babddc44]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x26b) [0x7f56b7cacd3b]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0xab2b8) [0x7f56b7d022b8]
/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x33) [0x7f56b7caa3e3]
/lib/x86_64-linux-gnu/libQt6Core.so.6 QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) 0x6e) [0x7f56babddeae]
/lib/x86_64-linux-gnu/libQt6Core.so.6 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) 0x17b) [0x7f56ba9c2adb]
/release/lib/liblagom-core.so.0 Core::EventLoop::exec() 0x37) [0x7f56b85d5677]
/release/libexec/WebContent(+0x44431) [0x563e478b6431]
/release/libexec/WebContent(+0x100a82) [0x563e47972a82]
/lib/x86_64-linux-gnu/libc.so.6(+0x29d90) [0x7f56b7eb0d90]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80) [0x7f56b7eb0e40]
/release/libexec/WebContent(+0x42775) [0x563e478b4775]

Ladybird/ladybird

Layout crash: LibWeb/Layout/Node.cpp:139 VERIFICATION FAILED: nearest_ancestor_box

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Layout crash: LibWeb/Layout/Node.cpp:139 VERIFICATION FAILED: nearest_ancestor_box

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