Please note that this crash has been found using debug build.

brandtr@, would you mind taking a look or suggesting another owner?

I'll have a look.

The following revision refers to this bug:
  https://chromium.googlesource.com/external/webrtc.git/+/624c33578f41dc6d4d0415bd91572e461c59014b

commit 624c33578f41dc6d4d0415bd91572e461c59014b
Author: brandtr <brandtr@webrtc.org>
Date: Thu Sep 01 12:01:56 2016

Fix off-by-one error in DCHECK in ProducerFec.

BUG= chromium:642743 

Review-Url: https://codereview.webrtc.org/2294243005
Cr-Commit-Position: refs/heads/master@{#14018}

[modify] https://crrev.com/624c33578f41dc6d4d0415bd91572e461c59014b/webrtc/modules/rtp_rtcp/source/producer_fec.cc
[modify] https://crrev.com/624c33578f41dc6d4d0415bd91572e461c59014b/webrtc/modules/rtp_rtcp/source/producer_fec_unittest.cc

ClusterFuzz has detected this issue as fixed in range 416193:416227.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4823365087133696

Fuzzer: libfuzzer_producer_fec_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: UNKNOWN
Crash Address: 0x03e900004a8f
Crash State:
  webrtc::RedPacket::CreateHeader
  webrtc::ProducerFec::BuildRedPacket
  webrtc::FuzzOneInput
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=411293:411407
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=416193:416227

Minimized Testcase (0.02 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97vWVrx8lgVRdZGHqivauGQQC5CSEnxiueR4RSfXTuT9nHOIQrNvZplA8b8nxNHHxT9amAzDs1C0qJLlcJw1kFI24j73gi6PMKkUTFyvjUMW7kNk3Zygnh9SXzrsV5OWb2Bt-1gDBwUpDAVrA5y4T6TmDU7WQ?testcase_id=4823365087133696

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

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

Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot