CVE-2026-80519

In the Linux kernel, the following vulnerability has been resolved:

ovpn: finish crypto callback cleanup before peer release

Crypto completion callbacks hold both key-slot and peer references. The

peer reference pins the netdev, and dropping the last peer reference can

let netdev unregistration and module removal make progress.

Do not release that peer reference before the callback has finished its

own cleanup. If ovpncryptokeyslotput runs after ovpnpeerput, it can

schedule an RCU callback backed by module text after ovpn_cleanup

rcu_barrier has already run. The TX error path also freed the remaining

skb after ovpnpeerput, leaving callback cleanup outside the peer/netdev

lifetime window.

Release the key slot and free any remaining skb first, then drop the peer

reference as the last callback action.