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Issue 916057 link

Starred by 2 users
Status: Started
Owner:
chcunningham@chromium.org
Cc:
xhw...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Direct-leak in update_frag_index

Project Member Reported by ClusterFuzz, Dec 18 
Detailed report: https://clusterfuzz.com/testcase?key=5973513158262784

Fuzzer: libFuzzer_media_pipeline_integration_fuzzer
Fuzz target binary: media_pipeline_integration_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  update_frag_index
  mov_read_moof
  mov_read_default
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=617278:617279

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5973513158262784

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 18

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 18

Cc: xhw...@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 18

Labels: Test-Predator-Auto-Owner
Owner: chcunningham@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/8b857829e499caea0ac4fbd284115aa9347e2e42 (lavf/mov: ensure only one tkhd per trak).

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.

Comment 4 by chcunningham@chromium.org, Dec 18

Status: Started (was: Assigned)
Good job ClusterFuzz. That CL bails on the populating of an allocated array due to invalid file structure.

        if (c->fc->streams[i]->id < 0)
            return AVERROR_INVALIDDATA;

We should free the frag_stream_info prior to returning.
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