net: hsr: fix potential OOB access in supervision frame handling

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

CVE-2026-64000 · Microsoft / collected KEV context

cve-program · CVE-2026-64000

• https://git.kernel.org/stable/c/09a37dca090c55ffb1a33f52d8667f1c2367ef48
• https://git.kernel.org/stable/c/a4b64f3e9c7b8259f7dd251a0313420ba7c01852
• https://git.kernel.org/stable/c/71c986c0ba45b7dc574fae27c83e7b6671556f37
• https://git.kernel.org/stable/c/fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7
• https://git.kernel.org/stable/c/78607a6854a22a2502f68092202e75a39af4865d
• https://git.kernel.org/stable/c/f229426072fc865654a60978bb7fda790a051ff3

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