<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>308230</bug_id>
          
          <creation_ts>2026-02-19 10:47:43 -0800</creation_ts>
          <short_desc>Null deref under RenderLayerBacking::updateOverflowControlsLayers()</short_desc>
          <delta_ts>2026-03-29 19:53:38 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Compositing</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=311060</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Simon Fraser (smfr)">simon.fraser</reporter>
          <assigned_to name="Simon Fraser (smfr)">simon.fraser</assigned_to>
          <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2183085</commentid>
    <comment_count>0</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2026-02-19 10:47:43 -0800</bug_when>
    <thetext>We have reports of a null de-ref under RenderLayerBacking::updateOverflowControlsLayers().

&lt;rdar://150330340&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2183087</commentid>
    <comment_count>1</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2026-02-19 10:59:07 -0800</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/59013</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2183168</commentid>
    <comment_count>2</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2026-02-19 15:06:56 -0800</bug_when>
    <thetext>Committed 307858@main (142b64feb347): &lt;https://commits.webkit.org/307858@main&gt;

Reviewed commits have been landed. Closing PR #59013 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2184316</commentid>
    <comment_count>3</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2026-02-23 22:20:02 -0800</bug_when>
    <thetext>Committed 305413.342@safari-7624-branch (98b6afe0c9f2): &lt;https://commits.webkit.org/305413.342@safari-7624-branch&gt;

Reviewed commits have been landed. Closing PR #4540 and removing active labels.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>