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Issue metadata

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



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Abrt in mov_read_trun

Project Member Reported by ClusterFuzz, Jan 7

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5714355848740864

Fuzzer: inferno_flicker
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x053900000001
Crash State:
  mov_read_trun
  mov_read_default
  mov_read_default
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=616399:616401

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5714355848740864

Issue filed automatically.

See https://www.chromium.org/developers/testing/memorysanitizer#TOC-Reproducing-ClusterFuzz-Bugs for instructions to reproduce this bug locally.
 
Project Member

Comment 1 by ClusterFuzz, Jan 7

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, Jan 7

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/+/80df42b82ef8422de896e51b4e82c05c96db95bb (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.
Cc: infe...@chromium.org
+inferno@ - this testcase is hitting an assert. This assert verifies that an index into an array is valid, preventing OOB io. This assert fires in debug and release, so its effectively preventing the OOB. To me this is WAI - any concerns?

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