ax25: fix UAF bug in ax25sendcontrol()
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 v5.10.112 by commit a4942c6fea879972a7fee50f7e92e2e10f3fc23e, it was introduced in version v5.10.112 by commit b20a5ab0f5fb175750c6bafd4cf12daccf00c738. For more details please see the references link.