[Demonoculus]

I don't really understand this, many Linux distributions like Universal Blue advertise rollbacks as a feature. How is preventing a roll-back a "security feature"?

[sltkr]

Imagine a driver has an exploitable vulnerability that is fixed in an update. If an attacker can force a rollback to the vulnerable older version, then the system is still vulnerable. Disallowing the rollback fixes this.

[Demonoculus]

ohh