=== Relevant Chrome stderr excerpt ===

(PID 1752 = GPU process; PID 1819 = renderer process)

[1752:1843:...:ERROR:media/gpu/gpu_video_encode_accelerator_factory.cc:199] [POC] PocVEA::Initialize profile=11 size=640x480
[1752:1843:...:ERROR:media/gpu/gpu_video_encode_accelerator_factory.cc:211] [POC] PocVEA::Encode ts=639166 s
[1752:1843:...:ERROR:media/gpu/gpu_video_encode_accelerator_factory.cc:270] [POC] PocVEA -> BitstreamBufferReady id=0 temporal_idx=200 (malicious)
[1819:1842:...:WARNING:third_party/webrtc/modules/video_coding/utility/vp8_header_parser.cc:192] Failed to get QP, bitstream is truncated or corrupted.
[1819:1841:...:WARNING:third_party/webrtc/modules/video_coding/utility/vp8_header_parser.cc:192] Failed to get QP, bitstream is truncated or corrupted.
[1819:1841:...:WARNING:third_party/webrtc/video/video_receive_stream2.cc:830] Failed to extract QP from VP8 video frame

Received signal 4 ILL_ILLOPN 588b95670efb            <-- renderer process
#0 0x10d9dd15  __sanitizer_print_stack_trace
#1 0x291833b7  base/debug/stack_trace_posix.cc:1050
#2 0x29141446  base/debug/stack_trace.cc:280
#3 0x291827be  base/debug/stack_trace_posix.cc:483 (StackDumpSignalHandler)
#4 libc        <signal handler>
#5 0x3da7cefa  webrtc::EncoderBitrateAdjuster::OnEncodedFrame(DataSize,int,int)
               third_party/webrtc/video/encoder_bitrate_adjuster.cc:386  [ud1 trap]
#6 0x3da377e5  webrtc::VideoStreamEncoder::RunPostEncode(...)
               third_party/webrtc/video/video_stream_encoder.cc:2675
#7 0x14b9b51d  blink::WebRtcTaskQueue::RunTask(...)
#8 0x14b9ce41  base::internal::Invoker<...>::RunOnce
#9 0x28fc04c3  base::TaskAnnotator::RunTaskImpl
#10-#17        base/task/thread_pool/* (ThreadPoolSingleThread "EncoderQueue")
  ...
  cx: 00000000000000c8   <-- temporal_index = 200
  ip: 0000588b95670efb
[end of stack trace]

=== Disassembly at fault PC ===
3da7cefb: 67 0f b9 40 12   ud1 0x12(%eax),%eax   ; -fsanitize-trap=array-bounds