An issue was discovered in the Linux kernel before 5.0.6. In rx_queue_add_kobject() and netdev_queue_add_kobject() in net/core/net-sysfs.c, a reference count is mishandled, aka CID-a3e23f719f5c.
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.6
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html