net/sched: Enforce that teql can only be used as root qdisc

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

CVE-2026-23074 · Microsoft / collected KEV context

cve-program · CVE-2026-23074

• https://git.kernel.org/stable/c/73d970ff0eddd874a84c953387c7f4464b705fc6
• https://git.kernel.org/stable/c/ae810e6a8ac4fe25042e6825d2a401207a2e41fb
• https://git.kernel.org/stable/c/dad49a67c2d817bfec98e6e45121b351e3a0202c
• https://git.kernel.org/stable/c/0686bedfed34155520f3f735cbf3210cb9044380
• https://git.kernel.org/stable/c/4c7e8aa71c9232cba84c289b4b56cba80b280841
• https://git.kernel.org/stable/c/16ed73c1282d376b956bff23e5139add061767ba
• https://git.kernel.org/stable/c/50da4b9d07a7a463e2cfb738f3ad4cff6b2c9c3b

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