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Issue 837471 link

Starred by 3 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in blink::IntPoint::Move

Project Member Reported by ClusterFuzz, Apr 27 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4858857000796160

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  blink::IntPoint::Move
  blink::operator+=
  Move
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=549059:549062

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4858857000796160

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Apr 27 2018

Components: Platform
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: wangxianzhu@chromium.org pnangunoori@chromium.org
Labels: M-68 Test-Predator-Wrong Test-Predator-Wrong-CLs CF-NeedsTriage
Unable to provide possible suspect using Predator, CL and Code Search.
Could someone please look into the issue.

CC'ing wangxianzhu@ for the recent changes made to the file 'int_point.h' for the further inputs.

Thank You.
Status: WontFix (was: Untriaged)
For now we don't check integer overflow in IntPoint, and there seems no plan for it.
Cc: kkaluri@chromium.org
 Issue 837608  has been merged into this issue.
Project Member

Comment 5 by ClusterFuzz, May 4 2018

Labels: Needs-Feedback
ClusterFuzz testcase 5538385251532800 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.
Labels: ClusterFuzz-Ignore
Project Member

Comment 7 by ClusterFuzz, Aug 15

ClusterFuzz has detected this issue as fixed in range 583155:583156.

Detailed report: https://clusterfuzz.com/testcase?key=4858857000796160

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  blink::IntPoint::Move
  blink::operator+=
  Move
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=549059:549062
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=583155:583156

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4858857000796160

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.

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