diff --git a/media/mojo/services/oop_video_decoder_factory_process_service.cc b/media/mojo/services/oop_video_decoder_factory_process_service.cc
index 0000000000000..0000000000000 100644
--- a/media/mojo/services/oop_video_decoder_factory_process_service.cc
+++ b/media/mojo/services/oop_video_decoder_factory_process_service.cc
@@ -22,7 +22,12 @@ OOPVideoDecoderFactoryProcessService::OOPVideoDecoderFactoryProcessService(

 OOPVideoDecoderFactoryProcessService::~OOPVideoDecoderFactoryProcessService() {
   DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
-  if (shared_image_interface_ && !shared_image_interface_->IsLost()) {
+  // Unconditionally remove ourselves from the observer list. The previous
+  // `!IsLost()` guard introduced a TOCTOU race: the IO thread can publish
+  // `is_connected_ = false` before taking `channel_obs_lock_`, causing this
+  // destructor to skip removal while a raw `this` is still pending iteration
+  // in ConnectionTracker::NotifyGpuChannelLost().
+  if (shared_image_interface_) {
     shared_image_interface_->RemoveGpuChannelLostObserver(this);
   }
 }