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Issue metadata

Status: Verified
Owner:
Closed: Nov 30
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in hit_test_manager_fuzzer.cc

Project Member Reported by ClusterFuzz, Nov 29

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5655726422491136

Fuzzer: libFuzzer_hit_test_manager_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  hit_test_manager_fuzzer.cc
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=611798:611813

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5655726422491136

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Project Member

Comment 1 by ClusterFuzz, Nov 29

Components: Internals>Compositing
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.
Project Member

Comment 2 by ClusterFuzz, Nov 29

Cc: riajiang@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 3 by ClusterFuzz, Nov 29

Labels: Test-Predator-Auto-Owner
Owner: infe...@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/3ca20a18a7f7bc29ad5b798dc818b71e42feefa8 (Create template helper for ConsumeIntegral in fuzzing.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Cc: mmoroz@chromium.org
Project Member

Comment 5 by bugdroid1@chromium.org, Nov 29

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2fedc7152c541a2766c2365e7f470cda35242896

commit 2fedc7152c541a2766c2365e7f470cda35242896
Author: Abhishek Arya <inferno@chromium.org>
Date: Thu Nov 29 19:03:03 2018

Fix integer overflows in FuzzedDataProvider.

R=mmoroz@chromium.org,ochang@chromium.org

Bug:  909950 
Change-Id: I00c7a8dcab631a8e4f7334847733c4a10a1376f0
Reviewed-on: https://chromium-review.googlesource.com/c/1354684
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Oliver Chang <ochang@chromium.org>
Commit-Queue: Abhishek Arya <inferno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612296}
[modify] https://crrev.com/2fedc7152c541a2766c2365e7f470cda35242896/base/test/fuzzed_data_provider.h

Project Member

Comment 6 by ClusterFuzz, Nov 30

ClusterFuzz has detected this issue as fixed in range 612295:612313.

Detailed report: https://clusterfuzz.com/testcase?key=5655726422491136

Fuzzer: libFuzzer_hit_test_manager_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  hit_test_manager_fuzzer.cc
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=611798:611813
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=612295:612313

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5655726422491136

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md 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 7 by ClusterFuzz, Nov 30

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5655726422491136 is verified as fixed, so closing issue as verified.

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

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