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Issue metadata

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

Blocking:
issue 777555



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Integer-overflow in compute_antialias

Project Member Reported by ClusterFuzz, Nov 5 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4511135029264384

Fuzzer: libFuzzer_mediasource_MP3_pipeline_integration_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_antialias
  mp_decode_layer3
  mp_decode_frame
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=513674:513694

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4511135029264384

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Cc: kkaluri@chromium.org
Components: Internals>Media>FFmpeg
Labels: CF-NeedsTriage M-64 Test-Predator-Wrong
Unable to provide possible suspect using Predator, CL and Code Search.
Could someone please look into the issue.

Thank You...
Owner: dalecur...@chromium.org
Status: Assigned (was: Untriaged)
Blocking: 777555
Project Member

Comment 4 by ClusterFuzz, Nov 10 2017

ClusterFuzz has detected this issue as fixed in range 515364:515426.

Detailed report: https://clusterfuzz.com/testcase?key=4511135029264384

Fuzzer: libFuzzer_mediasource_MP3_pipeline_integration_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_antialias
  mp_decode_layer3
  mp_decode_frame
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=513674:513694
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=515364:515426

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4511135029264384

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 5 by ClusterFuzz, Nov 10 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4511135029264384 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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