net/ip6_tunnel: Prevent perpetual tunnel growth

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

CVE-2025-40173 · Microsoft / collected KEV context

cve-program · CVE-2025-40173

• https://git.kernel.org/stable/c/566f8d5c8a443f2dd69c5460fdec43ed1c870c65
• https://git.kernel.org/stable/c/11f6066af3bfb8149aa16c42c0b0c5ea5b199a94
• https://git.kernel.org/stable/c/402b6985e872b4cf394bbbf33b503947a326a6cb
• https://git.kernel.org/stable/c/10fe967efe73c610e526ff7460581610633dee9c
• https://git.kernel.org/stable/c/48294a67863c9cfa367abb66bbf0ef6548ae124f
• https://git.kernel.org/stable/c/eeb4345488672584db4f8c20a1ae13a212ce31c4
• https://git.kernel.org/stable/c/b6eb25d870f1a8ae571fd3da2244b71df547824b
• https://git.kernel.org/stable/c/21f4d45eba0b2dcae5dbc9e5e0ad08735c993f16

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