can: j1939: j1939netdevstart(): fix UAF for rxkref of j1939priv
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 v5.4.156 by commit a0e47d2833b4f65e6c799f28c6b636d36b8b936d, it was introduced in version v5.4 by commit 9d71dd0c70099914fcd063135da3c580865e924c. For more details please see the references link.