ipvlan: Make the addrs_lock be per port

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-23103 · Microsoft / collected KEV context

cve-program · CVE-2026-23103

• https://git.kernel.org/stable/c/3c149b662cbb202a450e81f938e702ba333864ad
• https://git.kernel.org/stable/c/70feb16e3fbfb10b15de1396557c38e99f1ab8df
• https://git.kernel.org/stable/c/88f83e6c9cdb46b8c8ddd0ba01393362963cf589
• https://git.kernel.org/stable/c/04ba6de6eff61238e5397c14ac26a6578c7735a5
• https://git.kernel.org/stable/c/1f300c10d92c547c3a7d978e1212ff52f18256ed
• https://git.kernel.org/stable/c/6a81e2db096913d7e43aada1c350c1282e76db39
• https://git.kernel.org/stable/c/d3ba32162488283c0a4c5bedd8817aec91748802

No related operational record is retained in the current change model.