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Starred by 2 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Jul 18
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug



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

Project Member Reported by ClusterFuzz, Jun 29 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5570464827834368

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

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

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

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5570464827834368

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jun 29 2018

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.
Cc: kkaluri@chromium.org
Labels: M-68
Owner: yosin@chromium.org
Status: Assigned (was: Untriaged)
Predator has provided 11 possible suspect CL's

using file name "layout_frame_set.cc" : suspecting following CL https://chromium.googlesource.com/chromium/src/+/fa5f9c02ecd9b08736acdd5c724503174c2e6a88

yosin@ Could you please look into this issue.
Labels: -Pri-2 Pri-3
Owner: ----
Status: Untriaged (was: Assigned)
Route to layout-dev@ and lower to Pri-3 since it is caused by unusual HTML.

/* newvar{htmlvar00048:HTMLFrameSetElement} */ var htmlvar00048 = document.createElement("frameset"); //HTMLFrameSetElement
 htmlvar00048.cols = "2147483648"; 

It seems this is caused by specifying huge number of columns 2147483648 to
<frameset>.


Status: WontFix (was: Untriaged)
Project Member

Comment 5 by ClusterFuzz, Jul 25

Labels: Needs-Feedback
ClusterFuzz testcase 5570464827834368 is still reproducing on tip-of-tree build (trunk).

If this testcase was not reproducible locally or unworkable, ignore this notification and we will file another bug soon with hopefully a better and workable testcase.

Otherwise, if this is not intended to be fixed (e.g. this is an intentional crash), please add ClusterFuzz-Ignore label to prevent future bug filing with similar crash stacktrace.

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