mptcp: fix slab-use-after-free in __inet_lookup_established

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

CVE-2026-31669 · Microsoft / collected KEV context

cve-program · CVE-2026-31669

• https://git.kernel.org/stable/c/f6e1f25fa5e733570f6d6fe37a4dfed2a0deba47
• https://git.kernel.org/stable/c/fb1f54b7d16f393b8b65d328410f78b4beea8fcc
• https://git.kernel.org/stable/c/3fd6547f5b8ac99687be6d937a0321efda760597
• https://git.kernel.org/stable/c/eb9c6aeb512f877cf397deb1e4526f646c70e4a7
• https://git.kernel.org/stable/c/15fa9ead4d5e6b6b9c794e84144146c917f2cb62
• https://git.kernel.org/stable/c/b313e9037d98c13938740e5ebda7852929366dff
• https://git.kernel.org/stable/c/9b55b253907e7431210483519c5ad711a37dafa1

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