sched: sch_cake: add bounds checks to host bulk flow fairness counts

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

CVE-2025-21647 · Microsoft / collected KEV context

cve-program · CVE-2025-21647

• https://git.kernel.org/stable/c/44fe1efb4961c1a5ccab16bb579dfc6b308ad58b
• https://git.kernel.org/stable/c/b1a1743aaa4906c41c426eda97e2e2586f79246d
• https://git.kernel.org/stable/c/bb0245fa72b783cb23a9949c5048781341e91423
• https://git.kernel.org/stable/c/a777e06dfc72bed73c05dcb437d7c27ad5f90f3f
• https://git.kernel.org/stable/c/27202e2e8721c3b23831563c36ed5ac7818641ba
• https://git.kernel.org/stable/c/91bb18950b88f955838ec0c1d97f74d135756dc7
• https://git.kernel.org/stable/c/737d4d91d35b5f7fa5bb442651472277318b0bfd

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