sctp: auth: verify auth requirement when auth_chunk is NULL

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

CVE-2026-68300 · Microsoft / collected KEV context

cve-program · CVE-2026-68300

• https://git.kernel.org/stable/c/a129792b3aef15002746c13522781d92ed3522c3
• https://git.kernel.org/stable/c/5a022ac51ad83b4ce6c898f4b9eefc65bd26b247
• https://git.kernel.org/stable/c/6caf0e8590c0bf05a76b0d387726adf3a6f3725c
• https://git.kernel.org/stable/c/ec2e157fc9678a9bc411305a25aec3fd337d7efb
• https://git.kernel.org/stable/c/28c5fdce9dd955d2baf5e28987819b6d7cfaf646
• https://git.kernel.org/stable/c/18957373920caf5cdaf5cf32e5d1d7a99ca7700a
• https://git.kernel.org/stable/c/83f5031f2a6a49d696eb4cc0898345d12f9c6451
• https://git.kernel.org/stable/c/8e04823c120b376ef7dab14b60ebf6823aa16c14

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