netlink: avoid infinite retry looping in netlink_unicast()

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

CVE-2025-38727 · Microsoft / collected KEV context

cve-program · CVE-2025-38727

• https://git.kernel.org/stable/c/47d49fd07f86d1f55ea1083287303d237e9e0922
• https://git.kernel.org/stable/c/6bee383ff83352a693d03efdf27cdd80742f71b2
• https://git.kernel.org/stable/c/f324959ad47e62e3cadaffa65d3cff790fb48529
• https://git.kernel.org/stable/c/d42b71a34f6b8a2d5c53df81169b03b8d8b5cf4e
• https://git.kernel.org/stable/c/346c820ef5135cf062fa3473da955ef8c5fb6929
• https://git.kernel.org/stable/c/44ddd7b1ae0b7edb2c832eb16798c827a05e58f0
• https://git.kernel.org/stable/c/78fcd69d55c5f11d7694c547eca767a1cfd38ec4
• https://git.kernel.org/stable/c/e8edc7de688791a337c068693f22e8d8b869df71
• https://git.kernel.org/stable/c/759dfc7d04bab1b0b86113f1164dc1fec192b859

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