Unable to provide possible suspect using Predator, CL and Code Search.
Could someone please look into the issue.

Thank You.

Will pick this up with ffmpeg roll.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/252244150ad759fe86470f40642514bf2a7aec98

commit 252244150ad759fe86470f40642514bf2a7aec98
Author: Dale Curtis <dalecurtis@chromium.org>
Date: Sat Nov 18 00:25:32 2017

[mpeg4video] Fix undefined shift on assumed 8-bit input.

decode_user_data() attempts to create an integer |build|
value with 8 bits of spacing for 3 components. However
each component is an int32_t, so shifting each component
is undefined for values outside of the 8 bit range.

This patch simply clamps input to 8-bits per component.

BUG= 779924 

Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Change-Id: Ieb4112d10df3bba5ded04a60d709f44911644da8
Reviewed-on: https://chromium-review.googlesource.com/777850
Reviewed-by: Dan Sanders <sandersd@chromium.org>

[modify] https://crrev.com/252244150ad759fe86470f40642514bf2a7aec98/libavcodec/mpeg4videodec.c
[modify] https://crrev.com/252244150ad759fe86470f40642514bf2a7aec98/chromium/patches/README

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/aea3d2d4d8d304df1a029ef83d248508073bd066

commit aea3d2d4d8d304df1a029ef83d248508073bd066
Author: Dale Curtis <dalecurtis@chromium.org>
Date: Sat Nov 18 06:56:26 2017

Roll ffmpeg DEPS and fix additional ubsan issues.

This change enables AV_EF_EXPLODE such that all serious errors
encountered during demuxing are fatal. Previously ffmpeg would
try to ignore these in some cases; leading to ubsan or other
issues. Specifically  crbug.com/698524  and  crbug.com/710791 .

Due to the removal of the speex parser from ogg, there is one
test that needs updating with the roll too.

https://chromium.googlesource.com/chromium/third_party/ffmpeg.git/+log/1e816bccb5ff..252244150ad7

$ git log 1e816bccb..252244150 --date=short --no-merges --format='%ad %ae %s'
2017-11-17 dalecurtis [mpeg4video] Fix undefined shift on assumed 8-bit input.
2017-11-17 dalecurtis Disable unused ogg codec parsers; they have bugs we don't care about.
2017-11-17 dalecurtis Use ff_thread_once for fixed, float table init.
2017-11-17 dalecurtis Fixup some patches messages.
2017-11-17 dalecurtis [mov] Fix leak of frame_duration_buffer in mov_fix_index().
2017-11-17 dalecurtis Prevent undefined shift with wrap_bits >= 63.
2017-11-15 hubbe avformat/mov: Check size of STSC allocation
2017-11-17 jstebbins [PATCH] lavf/mov: don't read outside frag_index bounds

Created with:
  roll-dep src/third_party/ffmpeg

BUG= 786269 , 782074 , 783459 , 784159 , 654612 , 779924 , 710791 , 698524 
TEST=security test cases no longer fail.

Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: Ibbf3c32080705d6484682351a351663c51a7f752
Reviewed-on: https://chromium-review.googlesource.com/777408
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Dan Sanders <sandersd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517709}
[modify] https://crrev.com/aea3d2d4d8d304df1a029ef83d248508073bd066/DEPS
[modify] https://crrev.com/aea3d2d4d8d304df1a029ef83d248508073bd066/media/filters/ffmpeg_demuxer_unittest.cc
[modify] https://crrev.com/aea3d2d4d8d304df1a029ef83d248508073bd066/media/filters/ffmpeg_glue.cc

ClusterFuzz has detected this issue as fixed in range 517703:517710.

Detailed report: https://clusterfuzz.com/testcase?key=5812135493107712

Fuzzer: libFuzzer_media_pipeline_integration_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  decode_user_data
  ff_mpeg4_decode_picture_header
  mpeg4_decode_header
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=423338:423416
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=517703:517710

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5812135493107712

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md 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 5812135493107712 is verified as fixed, so closing issue as verified.

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