Predator could not provide any possible suspects.

From the below CL observing some changes related to 'audio_processing_fuzzer' might caused this issue
https://webrtc.googlesource.com/src.git/+log/3ac67a736bb2..4aa8ab5d568d

Suspect CL: https://webrtc.googlesource.com/src.git/+/ab20a6016c5d0798a00dd566c78f5f49065a9492

aleloi@ -- Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Thanks!

ClusterFuzz has detected this issue as fixed in range 537973:537987.

Detailed report: https://clusterfuzz.com/testcase?key=5757566030970880

Fuzzer: libFuzzer_audio_processing_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  WebRtcAecm_UpdateChannel
  WebRtcAecm_ProcessBlock
  WebRtcAecm_ProcessFrame
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=529631:529648
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=537973:537987

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5757566030970880

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 5757566030970880 is verified as fixed, so closing issue as verified.

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