wifi: b43: enforce bounds check on firmware key index in b43_rx()

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

CVE-2026-46122 · Microsoft / collected KEV context

cve-program · CVE-2026-46122

• https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6
• https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e
• https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71
• https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e
• https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14
• https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf
• https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34
• https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332

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