net: tls: prevent chain-after-chain in plain text SG

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

CVE-2026-64046 · Microsoft / collected KEV context

cve-program · CVE-2026-64046

• https://git.kernel.org/stable/c/49a5faaa471ddcd37b6893970c9916eb836e7c31
• https://git.kernel.org/stable/c/91359966e247c0244c66d50bbb8e74aefa4321c3
• https://git.kernel.org/stable/c/410351158dfef2d67fea6603680b3a6013c6ed9d
• https://git.kernel.org/stable/c/acdc12b71c9aa4be5dcd2c8062753c6d2033e235
• https://git.kernel.org/stable/c/929b1548e63ac72e104c07d8ee8cbbeeba2fa89a
• https://git.kernel.org/stable/c/af855f4c966afafef74faf8390c7b86568c0d46d
• https://git.kernel.org/stable/c/b9c015ef1a7bf1e8dc67f21c6381f36deb2c3a36
• https://git.kernel.org/stable/c/ff26a0e8377dec07e4a7230db7675bed1b9a6d03

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