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<!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>188418</bug_id>
          
          <creation_ts>2018-08-08 14:18:28 -0700</creation_ts>
          <short_desc>Fix possible null dereference in WebBackForwardList::restoreFromState</short_desc>
          <delta_ts>2018-08-08 15:58:29 -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>New Bugs</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="Alex Christensen">achristensen</reporter>
          <assigned_to name="Alex Christensen">achristensen</assigned_to>
          <cc>cdumez</cc>
    
    <cc>commit-queue</cc>
    
    <cc>rniwa</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1448840</commentid>
    <comment_count>0</comment_count>
    <who name="Alex Christensen">achristensen</who>
    <bug_when>2018-08-08 14:18:28 -0700</bug_when>
    <thetext>Fix possible null dereference in WebBackForwardList::restoreFromState</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448842</commentid>
    <comment_count>1</comment_count>
      <attachid>346795</attachid>
    <who name="Alex Christensen">achristensen</who>
    <bug_when>2018-08-08 14:18:51 -0700</bug_when>
    <thetext>Created attachment 346795
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448843</commentid>
    <comment_count>2</comment_count>
    <who name="Alex Christensen">achristensen</who>
    <bug_when>2018-08-08 14:18:53 -0700</bug_when>
    <thetext>&lt;rdar://problem/42531726&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448851</commentid>
    <comment_count>3</comment_count>
      <attachid>346795</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2018-08-08 14:44:15 -0700</bug_when>
    <thetext>Comment on attachment 346795
Patch

I think it is fine to make this change in WebKit. However, let&apos;s confirm that it does not crash later on (or that Safari is not visually broken) after this fix before closing &lt;rdar://problem/42531726&gt;, since we have reproduction steps.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448853</commentid>
    <comment_count>4</comment_count>
      <attachid>346795</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2018-08-08 14:45:49 -0700</bug_when>
    <thetext>Comment on attachment 346795
Patch

Actually, hold on. We should have an API test.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448862</commentid>
    <comment_count>5</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2018-08-08 15:03:26 -0700</bug_when>
    <thetext>&lt;rdar://problem/43065730&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448863</commentid>
    <comment_count>6</comment_count>
      <attachid>346802</attachid>
    <who name="Alex Christensen">achristensen</who>
    <bug_when>2018-08-08 15:05:54 -0700</bug_when>
    <thetext>Created attachment 346802
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448869</commentid>
    <comment_count>7</comment_count>
      <attachid>346802</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2018-08-08 15:29:23 -0700</bug_when>
    <thetext>Comment on attachment 346802
Patch

r=me</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448875</commentid>
    <comment_count>8</comment_count>
      <attachid>346802</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2018-08-08 15:58:27 -0700</bug_when>
    <thetext>Comment on attachment 346802
Patch

Clearing flags on attachment: 346802

Committed r234714: &lt;https://trac.webkit.org/changeset/234714&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1448876</commentid>
    <comment_count>9</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2018-08-08 15:58:29 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
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