New issue
Advanced search Search tips

Issue 906355 link

Starred by 1 user

Issue metadata

Status: Assigned
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug

Blocked on:
issue 916298



Sign in to add a comment

Abrt in av_parser_parse2

Project Member Reported by ClusterFuzz, Nov 17

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6274101709373440

Fuzzer: libFuzzer_audio_decoder_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x053900170275
Crash State:
  av_parser_parse2
  parse_packet
  read_frame_internal
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=546309:546321

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6274101709373440

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 17

Components: Internals>Media>FFmpeg
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 17

Cc: mmoroz@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 17

Labels: Test-Predator-Auto-Owner
Owner: mmoroz@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/4b5068a99a84ff2edb34aa0549afc89aa751ccb4 (Add audio_decoder_fuzzer fuzz target.).

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.
Owner: chcunningham@chromium.org
Same as issue 906351 I think.
Project Member

Comment 6 by ClusterFuzz, Dec 1

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 6274101709373440 appears to be flaky, updating reproducibility label.
Labels: -Unreproducible Reproducible
Please ignore the last comment about testcase being unreproducible. The testcase is still reproducible. This happened due to a code refactoring on ClusterFuzz side, and the underlying root cause is now fixed. Resetting the label back to Reproducible. Sorry about the inconvenience caused from these incorrect notifications.
Project Member

Comment 8 by ClusterFuzz, Dec 14

ClusterFuzz has detected this issue as fixed in range 616464:616465.

Detailed report: https://clusterfuzz.com/testcase?key=6274101709373440

Fuzzer: libFuzzer_audio_decoder_fuzzer
Fuzz target binary: audio_decoder_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x053900170275
Crash State:
  av_parser_parse2
  parse_packet
  read_frame_internal
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=546309:546321
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=616464:616465

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6274101709373440

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 9 by ClusterFuzz, Dec 14

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6274101709373440 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Labels: ClusterFuzz-Wrong
The fixed range just points to (616465)
https://chromium.googlesource.com/chromium/src/+/9a085ba23156aba9ade0a08efd3d948f9527f01e

which doesn't include any changes to ffmpeg. I did recently make some changes here (616401)
https://chromium-review.googlesource.com/c/chromium/src/+/1376411

But those don't target this specific issue and aren't in the cited fixed range. 
Status: Assigned (was: Verified)
Blocking: 916298
Blocking: -916298
Blockedon: 916298

Sign in to add a comment