net/sched: fix netdevice reference leaks in attachdefaultqdiscs()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.66 by commit a420d587260185407eda9c5766cfa9bdd5c39a56, it was introduced in version v5.8 by commit bf6dba76d278d296b385b436d3ac7de56c190d44. For more details please see the references link.