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Issue metadata

Status: Verified
Owner:
Closed: Jan 10
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug

Blocked on:
issue 916298



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Integer-overflow in compute_pkt_fields

Project Member Reported by ClusterFuzz, Dec 3

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4992958094639104

Fuzzer: libFuzzer_audio_decoder_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_pkt_fields
  parse_packet
  read_frame_internal
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=546308:546319

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4992958094639104

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 3

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, Dec 3

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, Dec 3

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
Project Member

Comment 5 by ClusterFuzz, Dec 12

ClusterFuzz has detected this issue as fixed in range 615699:615711.

Detailed report: https://clusterfuzz.com/testcase?key=4992958094639104

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_pkt_fields
  parse_packet
  read_frame_internal
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=546308:546319
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=615699:615711

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4992958094639104

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 6 by ClusterFuzz, Dec 12

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4992958094639104 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Very likely, CF thinks that this is fixed because of https://chromium.googlesource.com/chromium/src/+/85102b19f89daf824e9581f17208c2f848788c4d

Sorry about that, I'll fix that ASAP.
Status: Assigned (was: Verified)
Project Member

Comment 9 by ClusterFuzz, Jan 10

ClusterFuzz has detected this issue as fixed in range 621448:621462.

Detailed report: https://clusterfuzz.com/testcase?key=4992958094639104

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

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  compute_pkt_fields
  parse_packet
  read_frame_internal
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=546308:546319
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=621448:621462

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4992958094639104

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Status: Fixed (was: Assigned)
> ClusterFuzz has detected this issue as fixed in range 621448:621462.

Fixed by the roll (621454)
https://chromium-review.googlesource.com/c/chromium/src/+/1401445
Blockedon: 916298
Status: Verified (was: Fixed)

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