kernel: ipvlan: Make the addrs_lock be per port

A race condition vulnerability was found in the Linux kernel's ipvlan driver. The per-device addrslock was incorrectly used instead of a per-port lock, and some code paths ipvlanopen/ipvlanclose failed to acquire the lock entirely. For IPv6 address changes that don't require RTNL lock, concurrent...

CVE-2026-23103: Improper Locking

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrslock be per port Make the addrslock be per port, not per ipvlan dev. Initial code seems to be written in the assumption, that any address change must occur under RTNL. But it is not so for the case of IPv6. ...