1 files changed, 6 insertions, 2 deletions
diff --git a/chromium/third_party/webrtc/modules/video_coding/rtp_frame_reference_finder.cc b/chromium/third_party/webrtc/modules/video_coding/rtp_frame_reference_finder.cc
index dce35549d61..b2511351f5f 100644
--- a/chromium/third_party/webrtc/modules/video_coding/rtp_frame_reference_finder.cc
+++ b/chromium/third_party/webrtc/modules/video_coding/rtp_frame_reference_finder.cc
@@ -461,8 +461,12 @@ RtpFrameReferenceFinder::FrameDecision RtpFrameReferenceFinder::ManageFrameVp9(
       RTC_LOG(LS_WARNING) << "Received keyframe without scalability structure";
 
     frame->num_references = 0;
-    GofInfo info = gof_info_.find(codec_header.tl0_pic_idx)->second;
-    FrameReceivedVp9(frame->picture_id, &info);
+    auto gof_info_it = gof_info_.find(codec_header.tl0_pic_idx);
+    if (gof_info_it == gof_info_.end())
+      return kDrop;
+
+    FrameReceivedVp9(frame->picture_id, &gof_info_it->second);
+
     UnwrapPictureIds(frame);
     return kHandOff;
   }