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Issue 664733 link

Starred by 1 user
Status: Verified
Owner:
█ ymalik@chromium.org
(currently inactive on Chromium)
Closed: Nov 2016
Cc:
█ msrchandra@chromium.org
vmp...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Crash in blink::LayoutObject::setMayNeedPaintInvalidation

Project Member Reported by ClusterFuzz, Nov 12 2016 
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5136036884905984

Fuzzer: inferno_twister
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000041
Crash State:
  blink::LayoutObject::setMayNeedPaintInvalidation
  blink::FrameView::ScrollbarManager::updateScrollbarGeometry
  blink::FrameView::updateScrollbars
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=431655:431691

Minimized Testcase (0.25 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97LeAAd4FIz1kN3iL-0L4NKl_Vrv837Un_ndCEQsD0zYZXdoatEE8A22YN0yaBmutYMLDvcKJednlClIUwS-51ES1-cBVWFvb4japwwFsqxAbJONx3bI4gU1mi8bPh8Rm0TM38wRcfm7mgwdvqKfbvP9F7cDw?testcase_id=5136036884905984
<body onload=runTest()>
<script>
function runTest() {
  document.designMode = "on";
  document.open();
  var parent = document.appendChild(document.createElement('iframe'));
  parent.focus();
  document.execCommand("InsertHorizontalRule");
}
</script>


Issue filed automatically.

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

Comment 1 by msrchandra@chromium.org, Nov 14 2016

Cc: msrchandra@chromium.org
Components: Blink>Paint>Invalidation
Labels: Test-Predator-Correct-CLs
Owner: ymalik@chromium.org
Status: Assigned (was: Untriaged)
Assigning to the concern owner from find it results,
Suspected CLs	The result is a list of CLs that change the crashed files.

Author: ymalik
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/322db3d6f1f9eb4b9cd6a0054999718c24b1f076
Time: Fri Nov 11 23:19:53 2016
Lines 483-490, 3926 of file FrameView.cpp which potentially caused crash are changed in this cl (frame #3, "blink::FrameView::ScrollbarManager::updateScrollbarGeometry"; frame #4, "blink::FrameView::updateScrollbars").
Minimum distance from crash line to modified line: 0. (file: FrameView.cpp, crashed on: 3926, modified: 3926).

Suspected Project: chromium

@ymalik -- Could you please look into the issue, kindly re-assign if not related to your changes.
Thank You.
Project Member

Comment 2 by ClusterFuzz, Nov 15 2016 

ClusterFuzz has detected this issue as fixed in range 431813:431838.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5136036884905984

Fuzzer: inferno_twister
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000041
Crash State:
  blink::LayoutObject::setMayNeedPaintInvalidation
  blink::FrameView::ScrollbarManager::updateScrollbarGeometry
  blink::FrameView::updateScrollbars
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=431655:431691
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=431813:431838

Minimized Testcase (0.25 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97LeAAd4FIz1kN3iL-0L4NKl_Vrv837Un_ndCEQsD0zYZXdoatEE8A22YN0yaBmutYMLDvcKJednlClIUwS-51ES1-cBVWFvb4japwwFsqxAbJONx3bI4gU1mi8bPh8Rm0TM38wRcfm7mgwdvqKfbvP9F7cDw?testcase_id=5136036884905984
<body onload=runTest()>
<script>
function runTest() {
  document.designMode = "on";
  document.open();
  var parent = document.appendChild(document.createElement('iframe'));
  parent.focus();
  document.execCommand("InsertHorizontalRule");
}
</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 3 by ClusterFuzz, Nov 15 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 4 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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