This issue is fixed in kernel 5.10.12-1, thanks.
- Bug#980871: linux-image-5.10.0-2-amd64: dummy_h... KeyofBlueS
- Bug#980871: KeyofBlueS
- Bug#980871: marked as done (linux-image-5.... Debian Bug Tracking System
- Bug#980871: marked as done (linux-image-5.... Debian Bug Tracking System
