New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 719862 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



Sign in to add a comment

Integer-overflow in blink::CornerRect

Project Member Reported by ClusterFuzz, May 9 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5224587462967296

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  blink::CornerRect
  blink::PaintLayerScrollableArea::ResizerCornerRect
  blink::ScrollingCoordinator::ComputeShouldHandleScrollGestureOnMainThreadRegion
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=446721:447186

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5224587462967296


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Cc: msrchandra@chromium.org
Labels: M-60 Test-Predator-Correct-CLs
Owner: szager@chromium.org
Status: Assigned (was: Untriaged)
Assigning to the concern owner from Predator results --
The result is a list of CLs that change the crashed files. 

Author: szager
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/a84f6044bfe3bc52dde4c2cdddbbc92be1b56ab1
Time: Mon Jan 30 23:56:54 2017
Lines 195 of file ScrollingCoordinator.cpp which potentially caused crash are changed in this cl (frame #3, "blink::ScrollingCoordinator::UpdateAfterCompositingChangeIfNeeded"). 

Files FrameView.cpp, PaintLayerScrollableArea.cpp are changed in this cl (and is part of stack frame #4, "blink::FrameView::UpdateLifecyclePhasesInternal")
Minimum distance from crash line to modified line: 0. (file: ScrollingCoordinator.cpp, crashed on: 195, modified: 195).

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

Comment 2 by ClusterFuzz, Oct 1 2017

Components: Blink>Paint
Labels: Test-Predator-AutoComponents
Automatically applying components based on information from OWNERS files. If this seems incorrect, please apply the Test-Predator-Wrong-Components label.
Labels: -Test-Predator-AutoComponents Test-Predator-Auto-Components
Project Member

Comment 4 by ClusterFuzz, Dec 22 2017

ClusterFuzz has detected this issue as fixed in range 525795:525817.

Detailed report: https://clusterfuzz.com/testcase?key=5224587462967296

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  blink::CornerRect
  blink::PaintLayerScrollableArea::ResizerCornerRect
  blink::ScrollingCoordinator::ComputeShouldHandleScrollGestureOnMainThreadRegion
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=446721:447186
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=525795:525817

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5224587462967296

See https://github.com/google/clusterfuzz-tools 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 5 by ClusterFuzz, Dec 22 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5224587462967296 is verified as fixed, so closing issue as verified.

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

Sign in to add a comment