<?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>234375</bug_id>
          
          <creation_ts>2021-12-15 18:02:27 -0800</creation_ts>
          <short_desc>null ptr deref in WebCore::findPlaceForCounter</short_desc>
          <delta_ts>2021-12-17 10:04:03 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Layout and Rendering</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <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="Gabriel Nava Marino">gnavamarino</reporter>
          <assigned_to name="Gabriel Nava Marino">gnavamarino</assigned_to>
          <cc>bfulgham</cc>
    
    <cc>changseok</cc>
    
    <cc>esprehn+autocc</cc>
    
    <cc>ews-watchlist</cc>
    
    <cc>glenn</cc>
    
    <cc>kondapallykalyan</cc>
    
    <cc>pdr</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>zalan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1824617</commentid>
    <comment_count>0</comment_count>
    <who name="Gabriel Nava Marino">gnavamarino</who>
    <bug_when>2021-12-15 18:02:27 -0800</bug_when>
    <thetext>Since parentOrPseudoHostElement can return a nullptr, we need to check for that before trying to access the renderer() of the Element object it returns.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1824618</commentid>
    <comment_count>1</comment_count>
    <who name="Gabriel Nava Marino">gnavamarino</who>
    <bug_when>2021-12-15 18:13:02 -0800</bug_when>
    <thetext>&lt;rdar://problem/86518846&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1824619</commentid>
    <comment_count>2</comment_count>
      <attachid>447305</attachid>
    <who name="Gabriel Nava Marino">gnavamarino</who>
    <bug_when>2021-12-15 18:14:38 -0800</bug_when>
    <thetext>Created attachment 447305
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1824639</commentid>
    <comment_count>3</comment_count>
      <attachid>447305</attachid>
    <who name="alan">zalan</who>
    <bug_when>2021-12-15 18:47:04 -0800</bug_when>
    <thetext>Comment on attachment 447305
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=447305&amp;action=review

&gt; Source/WebCore/ChangeLog:11
&gt; +        Since parentOrPseudoHostElement can return a nullptr, we need to check for nullptr before trying to
&gt; +        access the renderer() of the Element pointer it returns.

Could you explain why parentOrPseudoHostElement() returns nullptr in here?

&gt; Source/WebCore/rendering/RenderCounter.cpp:315
&gt; +                        auto parent = parentOrPseudoHostElement(*currentRenderer);

I&apos;d write it like auto* parent = parentOrPseudoHostElement(*currentRenderer);</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1824814</commentid>
    <comment_count>4</comment_count>
      <attachid>447372</attachid>
    <who name="Gabriel Nava Marino">gnavamarino</who>
    <bug_when>2021-12-16 10:45:23 -0800</bug_when>
    <thetext>Created attachment 447372
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1825107</commentid>
    <comment_count>5</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2021-12-17 10:03:59 -0800</bug_when>
    <thetext>Committed r287194 (245361@main): &lt;https://commits.webkit.org/245361@main&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 447372.</thetext>
  </long_desc>
      
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            <date>2021-12-15 18:14:38 -0800</date>
            <delta_ts>2021-12-16 10:45:20 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-234375-20211215181437.patch</filename>
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            <attacher name="Gabriel Nava Marino">gnavamarino</attacher>
            
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            <date>2021-12-16 10:45:23 -0800</date>
            <delta_ts>2021-12-17 10:04:01 -0800</delta_ts>
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          </attachment>
      

    </bug>

</bugzilla>