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Issue metadata

Status: Verified
Owner:
Closed: Oct 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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isStartOfParagraph(startOfParagraphToMove). null/TextAffinity::Downstream in Com

Project Member Reported by ClusterFuzz, Jul 13 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5182982071779328

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_debug_content_shell_drt
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  isStartOfParagraph(startOfParagraphToMove). null/TextAffinity::Downstream in Com
  blink::CompositeEditCommand::moveParagraph
  blink::InsertListCommand::moveParagraphOverPositionIntoEmptyListItem
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=369978:369981

Minimized Testcase (0.29 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv96VzPfJoVHPRWkTFv5hH5fjnLHSKXS2LjS_a4OFSW1Oudyc01OXPSU8qhQsqyOF8Wcb9fDjrDWSFSYRVyXwlZAmQwJ0sBabfAkFjt3NJFhAf7T8kNiS8jxmAgOHQNT_IcQfEVm2BOWlvKXULOnuNxIezmFCOg?testcase_id=5182982071779328
<style>
br {
visibility:hidden;
</style>
<script>
  var af = [], i = 0;
  function main(){af[i++ % af.length]()}
af.push(function (){
  document.execCommand("SelectAll");  document.designMode="on";  })
af.push(function (){
  document.execCommand("InsertOrderedList");  })
  setInterval(main);
</script>


Filer: nyerramilli

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Cc: nyerramilli@chromium.org
Components: Tools>Test>FindIt>NoResult
Labels: findit-wrong Te-Logged
Owner: yoichio@chromium.org
Status: Assigned (was: Available)
Providing Findit results for internal purpose:
------------------------------------------------
Suspected CLs	Findit could not determine the memory tool from the stacktrace. Is it in a new format?

from CL: https://chromium.googlesource.com/chromium/src/+log/8ffb693b5dbc7724ced3d7520658c9e9db5def14..e8793dd2fcaebaf4f0521831878658e7d070cca7?pretty=fuller

suspecting https://chromium.googlesource.com/chromium/src/+/439d6d1a6fb81725a6e01293fe6a7704c3039263; 
yoichio@, Could you please take a look at the issue and assign it to concerned developer if your changes are not responsible?
Components: -Tools>Test>FindIt>NoResult
Project Member

Comment 3 by ClusterFuzz, Oct 25 2016

ClusterFuzz has detected this issue as fixed in range 425642:425658.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5182982071779328

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_debug_content_shell_drt
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  isStartOfParagraph(startOfParagraphToMove). null/TextAffinity::Downstream in Com
  blink::CompositeEditCommand::moveParagraph
  blink::InsertListCommand::moveParagraphOverPositionIntoEmptyListItem
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=369978:369981
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=425642:425658

Minimized Testcase (0.29 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv96VzPfJoVHPRWkTFv5hH5fjnLHSKXS2LjS_a4OFSW1Oudyc01OXPSU8qhQsqyOF8Wcb9fDjrDWSFSYRVyXwlZAmQwJ0sBabfAkFjt3NJFhAf7T8kNiS8jxmAgOHQNT_IcQfEVm2BOWlvKXULOnuNxIezmFCOg?testcase_id=5182982071779328
<style>
br {
visibility:hidden;
</style>
<script>
  var af = [], i = 0;
  function main(){af[i++ % af.length]()}
af.push(function (){
  document.execCommand("SelectAll");  document.designMode="on";  })
af.push(function (){
  document.execCommand("InsertOrderedList");  })
  setInterval(main);
</script>


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 4 by ClusterFuzz, Oct 25 2016

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase is verified as fixed, closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Project Member

Comment 5 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

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