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Issue 637423 link

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Issue metadata

Status: Fixed
Owner:
Closed: Nov 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug



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Crash in blink::findSnapContainer

Project Member Reported by ClusterFuzz, Aug 12 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5515027123798016

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_syzyasan_content_shell
Platform Id: windows

Crash Type: UNKNOWN
Crash Address: 0x00000013
Crash State:
  blink::findSnapContainer
  blink::SnapCoordinator::snapAreaDidChange
  blink::LayoutBox::updateScrollSnapMappingAfterStyleChange
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=windows_syzyasan_content_shell&range=411522:411529

Minimized Testcase (0.23 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97KiATOsKhUfFw-nfxb43uVfRlolbG5WgBKaBGzKxMwG1oq8cKKAmxX8iKgbWomwalLCH04rYh_L4OEXyUniE96WaZ5-czl4aZDhBXIH2F3QECkSZbol6-o8sRRbCrDND-Pja6qNd9OVkj6gIgJRIPaJ1-HbQ?testcase_id=5515027123798016
 -->
<style>#video {
    scroll-snap-coordinate: 10px 10px;
</style><video id="video"><script src="full-screen-test.js"</script>
</script>
    <script>
        runWithKeyDown(function(){video.webkitRequestFullScreen()});
    </script>


Issue manually filed by: mmohammad

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Owner: majidvp@chromium.org
Status: Assigned (was: Untriaged)
Suspected cl :https://chromium.googlesource.com/chromium/src/+/eff6c4c5699d35bc5703d706324c4c1c8b9ac19b%5E%21/third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.cpp

majidvp@ could you please look into this. Thanks
Components: Blink>Scroll
Labels: -Pri-1 Pri-2
Reducing the priority to p2. This code path is only ever exercised when an runtime experimental feature (CSSScrollSnapPoints) is active. This is only ever active in our test infrastructure.
Cc: majidvp@chromium.org
 Issue 619007  has been merged into this issue.
Project Member

Comment 5 by bugdroid1@chromium.org, Nov 14 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4add15dab9bc86608da3158f25a57582e1f86dd0

commit 4add15dab9bc86608da3158f25a57582e1f86dd0
Author: majidvp <majidvp@chromium.org>
Date: Mon Nov 14 19:01:25 2016

Handle anonymous layout objects correctly in SnapCoordinator

This is done by not assume that |node()| is always available.

BUG= 637423 

Review-Url: https://codereview.chromium.org/2332383002
Cr-Commit-Position: refs/heads/master@{#431881}

[modify] https://crrev.com/4add15dab9bc86608da3158f25a57582e1f86dd0/third_party/WebKit/Source/core/page/scrolling/SnapCoordinator.cpp

Status: Fixed (was: Assigned)
Project Member

Comment 7 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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