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Issue 645224 link

Starred by 1 user
Status: WontFix
Owner:
foolip@chromium.org
Closed: Dec 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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!nextSibling || nextSibling->isBox() in LayoutBlockFlow.cpp

Project Member Reported by ClusterFuzz, Sep 8 2016 
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6506312114634752

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  !nextSibling || nextSibling->isBox() in LayoutBlockFlow.cpp
  blink::LayoutBlockFlow::layoutBlockChildren
  blink::LayoutBlockFlow::layoutBlockFlow
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=416613:416628

Minimized Testcase (0.90 Kb): https://cluster-fuzz.appspot.com/download/AMIfv9418r9QEqkDGfQk81IHKWHWyEkVI_slTGEpt1jmgAbFwf3zQkbWdvhoq_Hovk2oihV98zDi5KNCZRNstkz8jb7GZoj-63gWWDmiEvJ19zV4TeinMaxIMytMubFIA07d5XFEeX93TR-DguKSFaVnEY-veu2Hng?testcase_id=6506312114634752

Additional requirements: Requires Gestures

Issue manually filed by: mmohammad

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

Comment 1 by mmohammad@chromium.org, Sep 8 2016

Owner: foolip@chromium.org
Status: Assigned (was: Untriaged)
This might be a suspected cl :

https://chromium.googlesource.com/chromium/src/+/bed5e3cfe0bff0458604c83665da1d88bc38c8f4%5E%21/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp

foolip @ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

Comment 2 by foolip@chromium.org, Sep 8 2016 

Yep, this is the same test as in  issue 632848 , where I couldn't reproduce the crash locally. I added the CHECKs to see if it would reveal a case in the wild that trigger the crash that I could reproduce, but the same test again isn't going to help.

Other than trying harder, is there any recourse when reproduction fails?

Comment 3 by dtapu...@chromium.org, Nov 18 2016

Components: Blink>Layout
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
Project Member

Comment 5 by ClusterFuzz, Dec 22 2016

Status: WontFix (was: Assigned)
ClusterFuzz testcase 6506312114634752 is flaky and no longer reproduces, so closing issue.

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

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