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Issue metadata

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



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Undefined-shift in ff_vorbis_len2vlc

Project Member Reported by ClusterFuzz, Aug 25 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4716580272603136

Fuzzer: libFuzzer_media_pipeline_integration_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  ff_vorbis_len2vlc
  vorbis_parse_setup_hdr_codebooks
  vorbis_parse_setup_hdr
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=395640:395746

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4716580272603136

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Labels: M-62 Test-Predator-Wrong-CLs
Redo task has been performed for a new regression range.
Thank You.

Comment 2 by mmoroz@chromium.org, Aug 29 2017

Cc: mmoroz@chromium.org wolenetz@chromium.org
Cc: dalecur...@chromium.org
Components: Internals>Media>FFmpeg
Owner: chcunningham@chromium.org
Status: Assigned (was: Untriaged)
=> chcunningham@ and dalecurtis@ (ffmpeg-related, Chrome SRC= fuzzer)

Comment 4 by mmoroz@chromium.org, Oct 24 2017

For more information, please see https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md.

The link referenced in the description is no longer valid.
Project Member

Comment 5 by ClusterFuzz, Nov 19 2017

ClusterFuzz has detected this issue as fixed in range 517703:517710.

Detailed report: https://clusterfuzz.com/testcase?key=4716580272603136

Fuzzer: libFuzzer_media_pipeline_integration_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  ff_vorbis_len2vlc
  vorbis_parse_setup_hdr_codebooks
  vorbis_parse_setup_hdr
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=395640:395746
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=517703:517710

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4716580272603136

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 6 by ClusterFuzz, Nov 19 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4716580272603136 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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