<?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>233119</bug_id>
          
          <creation_ts>2021-11-15 00:49:05 -0800</creation_ts>
          <short_desc>Stack overflow with revert-layer</short_desc>
          <delta_ts>2021-11-15 03:19:59 -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>CSS</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="Antti Koivisto">koivisto</reporter>
          <assigned_to name="Antti Koivisto">koivisto</assigned_to>
          <cc>graouts</cc>
    
    <cc>msaboff</cc>
    
    <cc>ntim</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1814975</commentid>
    <comment_count>0</comment_count>
    <who name="Antti Koivisto">koivisto</who>
    <bug_when>2021-11-15 00:49:05 -0800</bug_when>
    <thetext>boom</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1814976</commentid>
    <comment_count>1</comment_count>
    <who name="Antti Koivisto">koivisto</who>
    <bug_when>2021-11-15 00:51:03 -0800</bug_when>
    <thetext>rdar://85342210</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1814979</commentid>
    <comment_count>2</comment_count>
      <attachid>444219</attachid>
    <who name="Antti Koivisto">koivisto</who>
    <bug_when>2021-11-15 01:01:20 -0800</bug_when>
    <thetext>Created attachment 444219
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1814982</commentid>
    <comment_count>3</comment_count>
      <attachid>444219</attachid>
    <who name="Tim Nguyen (:ntim)">ntim</who>
    <bug_when>2021-11-15 01:35:04 -0800</bug_when>
    <thetext>Comment on attachment 444219
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=444219&amp;action=review

&gt; Source/WebCore/style/StyleBuilder.cpp:398
&gt;      if (!rollbackLayerPriority)
&gt; -        return nullptr;
&gt; +        return ensureRollbackCascadeForRevert(cascadeLevel);

There should be tests for this, that revert-layer behaves like revert with no layers.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1814984</commentid>
    <comment_count>4</comment_count>
      <attachid>444223</attachid>
    <who name="Antti Koivisto">koivisto</who>
    <bug_when>2021-11-15 01:37:39 -0800</bug_when>
    <thetext>Created attachment 444223
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1814985</commentid>
    <comment_count>5</comment_count>
      <attachid>444219</attachid>
    <who name="Antti Koivisto">koivisto</who>
    <bug_when>2021-11-15 01:38:13 -0800</bug_when>
    <thetext>Comment on attachment 444219
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=444219&amp;action=review

&gt;&gt; Source/WebCore/style/StyleBuilder.cpp:398
&gt;&gt; +        return ensureRollbackCascadeForRevert(cascadeLevel);
&gt; 
&gt; There should be tests for this, that revert-layer behaves like revert with no layers.

I&apos;ll do the change separately.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1815005</commentid>
    <comment_count>6</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2021-11-15 03:12:40 -0800</bug_when>
    <thetext>Committed r285801 (244245@main): &lt;https://commits.webkit.org/244245@main&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 444223.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1815011</commentid>
    <comment_count>7</comment_count>
    <who name="Antti Koivisto">koivisto</who>
    <bug_when>2021-11-15 03:19:59 -0800</bug_when>
    <thetext>*** Bug 233068 has been marked as a duplicate of this bug. ***</thetext>
  </long_desc>
      
          <attachment
              isobsolete="1"
              ispatch="1"
              isprivate="0"
          >
            <attachid>444219</attachid>
            <date>2021-11-15 01:01:20 -0800</date>
            <delta_ts>2021-11-15 01:37:35 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-233119-20211115110118.patch</filename>
            <type>text/plain</type>
            <size>7099</size>
            <attacher name="Antti Koivisto">koivisto</attacher>
            
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          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>444223</attachid>
            <date>2021-11-15 01:37:39 -0800</date>
            <delta_ts>2021-11-15 03:12:40 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-233119-20211115113738.patch</filename>
            <type>text/plain</type>
            <size>6541</size>
            <attacher name="Antti Koivisto">koivisto</attacher>
            
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    </bug>

</bugzilla>