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Issue 861884 link

Starred by 1 user
Status: Assigned
Owner:
kkaluri@chromium.org
Cc:
ifratric@google.com
kkaluri@chromium.org
dgro...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Float-cast-overflow in blink::LayoutFrameSet::UpdateLayout

Project Member Reported by ClusterFuzz, Jul 9 
Detailed report: https://clusterfuzz.com/testcase?key=5111094084108288

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Float-cast-overflow
Crash Address: 
Crash State:
  blink::LayoutFrameSet::UpdateLayout
  LayoutIfNeeded
  blink::LayoutFlexibleBox::LayoutLineItems
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=551565:563900

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5111094084108288

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
Project Member

Comment 1 by ClusterFuzz, Jul 9

Components: Blink>Layout
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

Comment 2 by kkaluri@chromium.org, Jul 10

Cc: kkaluri@chromium.org
Labels: M-68
Owner: dgro...@chromium.org
Status: Assigned (was: Untriaged)
Predator has provided 6 possible suspects.

1. [LayoutNG] Make LayoutNGFlexibleBox inherit from LayoutBlock by dgrogan@chromium.org
2. Replace uses of WTF::AutoReset with base::AutoReset. by jbroman@chromium.org
3. [layoutng] Skip a flexbox optimization in LayoutNG by cbiesinger@chromium.org
4. [layoutng] Re-introduce optimization by cbiesinger@chromium.org
5. [css-contain] Disable size containment for certain elements by rego@igalia.com
6. Restrict implicit root scroller promotion by bokan@chromium.org

Suspecting CL : https://chromium.googlesource.com/chromium/src/+/3d8da92027fb6e434d47975194d69004122ce5b7

dgrogan@ Could you please look into this issue.

Comment 3 by dgro...@chromium.org, Jul 10

Cc: dgro...@chromium.org
Owner: kkaluri@chromium.org
kkaluri, before I spend time on this, what makes you suspect https://chromium.googlesource.com/chromium/src/+/3d8da92027fb6e434d47975194d69004122ce5b7

Please describe the criteria used and why it applies more strongly to that CL as opposed to the other 5 suspects.
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