Assigning to concern owner from predator results --
Regression information is not available. The result is the blame information. 

Author: Aurelien Jacobs
Project: chromium-ffmpeg
Changelist: https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+/16f97ab050cf78857e5692a4b040f7d8e235162a
Time: Tue Aug 05 00:41:10 2008
The CL last changed line 3235 of file matroskadec.c, which is stack frame 0. 

Author: Keiji Costantini
Project: chromium-ffmpeg
Changelist: https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+/84cfce9f99805a144df684417e166c1ae6f95421
Time: Sat Mar 01 16:28:15 2014
The CL last changed line 3390 of file matroskadec.c, which is stack frame 1. 

Author: Reimar Döffinger
Project: chromium-ffmpeg
Changelist: https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+/d493170ec9b2e7f25b9d29ef8614df0b6b5628ec
Time: Mon Feb 13 22:06:19 2012
The CL last changed line 3443 of file matroskadec.c, which is stack frame 2. 

Author: Diego Biurrun
Project: chromium-ffmpeg
Changelist: https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+/50ecf15712354a1d5b3f4dc9a57ff90ed7ee9654
Time: Thu Jan 16 00:53:03 2014
The CL last changed line 816 of file utils.c, which is stack frame 3. 

Author: Anton Khirnov
Project: chromium-ffmpeg
Changelist: https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+/3c90cc2ef21a928a7c11cf5a4583169025cdf847
Time: Sun Mar 04 20:41:59 2012
The CL last changed line 1517 of file utils.c, which is stack frame 4. 

Author: Michael Niedermayer
Project: chromium-ffmpeg
Changelist: https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+/896d6a7736c82a181bf17eb240f37645f6b7fa91
Time: Sun Jan 26 22:35:38 2014
The CL last changed line 1717 of file utils.c, which is stack frame 5. 

Author: tzik
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/99de02ba952b0a69291f81c5b8ca14d81cc1f74f
Time: Fri Jul 01 05:54:12 2016
The CL last changed line 164 of file bind_internal.h, which is stack frame 6.

@tzik -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.

ClusterFuzz has detected this issue as fixed in range 466807:466809.

Detailed report: https://clusterfuzz.com/testcase?key=5388630232399872

Fuzzer: inferno_flicker
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race READ 4
Crash Address: 0x7b5c0003fe54
Crash State:
  matroska_parse_block
  matroska_parse_cluster
  matroska_read_packet
  
Sanitizer: thread (TSAN)

Fixed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=466807:466809

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5388630232399872


Additional requirements: Requires Gestures

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 5388630232399872 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.