<?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>210353</bug_id>
          
          <creation_ts>2020-04-10 13:27:22 -0700</creation_ts>
          <short_desc>Null ptr Deref in RadioButtonGroups::updateCheckedState</short_desc>
          <delta_ts>2020-04-10 16:16:02 -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>Forms</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="Pinki Gyanchandani">pgyanchandani</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>cdumez</cc>
    
    <cc>esprehn+autocc</cc>
    
    <cc>ews-watchlist</cc>
    
    <cc>kangil.han</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>wenson_hsieh</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1640331</commentid>
    <comment_count>0</comment_count>
    <who name="Pinki Gyanchandani">pgyanchandani</who>
    <bug_when>2020-04-10 13:27:22 -0700</bug_when>
    <thetext>Crash is observed when default checked is called for HTML Input element and radioButtonGroup is NULL.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640335</commentid>
    <comment_count>1</comment_count>
    <who name="Pinki Gyanchandani">pgyanchandani</who>
    <bug_when>2020-04-10 13:29:25 -0700</bug_when>
    <thetext>rdar://problem/61290022</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640343</commentid>
    <comment_count>2</comment_count>
      <attachid>396118</attachid>
    <who name="Pinki Gyanchandani">pgyanchandani</who>
    <bug_when>2020-04-10 13:37:51 -0700</bug_when>
    <thetext>Created attachment 396118
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640344</commentid>
    <comment_count>3</comment_count>
      <attachid>396118</attachid>
    <who name="Wenson Hsieh">wenson_hsieh</who>
    <bug_when>2020-04-10 13:44:32 -0700</bug_when>
    <thetext>Comment on attachment 396118
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=396118&amp;action=review

&gt; Source/WebCore/ChangeLog:8
&gt; +        Crash happend when default checked setter was called an input element and RadioButtonGroup was NULL.

Nit - “This crash happened when the default…&quot;

&gt; Source/WebCore/ChangeLog:9
&gt; +        Added a NULL pointer check before derefercing.

Nit - “dereferencing&quot;

&gt; LayoutTests/fast/forms/input-element-default-checked-setter-crash.html:1
&gt; +&lt;!DOCHTML&gt;

Nit - &lt;!DOCTYPE html&gt;?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640347</commentid>
    <comment_count>4</comment_count>
      <attachid>396118</attachid>
    <who name="Wenson Hsieh">wenson_hsieh</who>
    <bug_when>2020-04-10 13:52:40 -0700</bug_when>
    <thetext>Comment on attachment 396118
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=396118&amp;action=review

&gt; LayoutTests/fast/forms/input-element-default-checked-setter-crash.html:16
&gt; +&lt;meta id=&quot;meta1&quot;&gt; &lt;/meta&gt;

I don’t think this meta tag is necessary to reproduce this crash.

Here’s a slightly simpler version of this test case:

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;body&gt;
&lt;p&gt;This test passes if there is no crash&lt;/p&gt;
&lt;div id=&quot;container&quot;&gt;
    &lt;iframe id=&quot;frame&quot;&gt;&lt;/iframe&gt;
    &lt;input id=&quot;input&quot; name=&quot; &quot; type=&quot;radio&quot;&gt;
&lt;/div&gt;
&lt;script&gt;
if (window.testRunner)
    testRunner.dumpAsText();
frame.onload = () =&gt; input.defaultChecked = true;
document.body.appendChild(container);
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640348</commentid>
    <comment_count>5</comment_count>
      <attachid>396118</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2020-04-10 13:54:40 -0700</bug_when>
    <thetext>Comment on attachment 396118
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=396118&amp;action=review

&gt; Source/WebCore/dom/RadioButtonGroups.cpp:231
&gt; +    auto* group = m_nameToGroupMap.get(element.name().impl());

if (auto* group = m_nameToGroupMap.get(element.name().impl()))
    group-&gt;updateCheckedState(element)

would be more concise.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640369</commentid>
    <comment_count>6</comment_count>
      <attachid>396125</attachid>
    <who name="Pinki Gyanchandani">pgyanchandani</who>
    <bug_when>2020-04-10 14:26:42 -0700</bug_when>
    <thetext>Created attachment 396125
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640370</commentid>
    <comment_count>7</comment_count>
    <who name="Pinki Gyanchandani">pgyanchandani</who>
    <bug_when>2020-04-10 14:27:59 -0700</bug_when>
    <thetext>Hi Chirs and Wensen,

Thanks for quick review comments. I have incorporated the comments.

Regards,
Pinki</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640372</commentid>
    <comment_count>8</comment_count>
      <attachid>396125</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2020-04-10 14:29:59 -0700</bug_when>
    <thetext>Comment on attachment 396125
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=396125&amp;action=review

&gt; Source/WebCore/ChangeLog:8
&gt; +        This crash happend when the default checked setter was called for an input element and RadioButtonGroup was NULL.

typo: happend

&gt; Source/WebCore/ChangeLog:9
&gt; +        Added condition to deference the group only if it is valid.

typo: deference -&gt; dereference
s/valid/non-null

&gt; LayoutTests/fast/forms/input-element-default-checked-setter-crash.html:4
&gt; +&lt;p&gt;This test passes if there is no crash&lt;/p&gt;

nit: There should be a period at the end of your sentence.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640403</commentid>
    <comment_count>9</comment_count>
      <attachid>396131</attachid>
    <who name="Pinki Gyanchandani">pgyanchandani</who>
    <bug_when>2020-04-10 15:45:31 -0700</bug_when>
    <thetext>Created attachment 396131
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1640411</commentid>
    <comment_count>10</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2020-04-10 16:16:01 -0700</bug_when>
    <thetext>Committed r259911: &lt;https://trac.webkit.org/changeset/259911&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 396131.</thetext>
  </long_desc>
      
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            <date>2020-04-10 13:37:51 -0700</date>
            <delta_ts>2020-04-10 14:26:39 -0700</delta_ts>
            <desc>Patch</desc>
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            <date>2020-04-10 14:26:42 -0700</date>
            <delta_ts>2020-04-10 15:45:28 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-210353-20200410142641.patch</filename>
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            <attacher name="Pinki Gyanchandani">pgyanchandani</attacher>
            
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          </attachment>
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>396131</attachid>
            <date>2020-04-10 15:45:31 -0700</date>
            <delta_ts>2020-04-10 16:16:02 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-210353-20200410154530.patch</filename>
            <type>text/plain</type>
            <size>3672</size>
            <attacher name="Pinki Gyanchandani">pgyanchandani</attacher>
            
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</bugzilla>