sctp: don't free the ASCONF's own transport in DEL-IP processing

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

CVE-2026-64564 · Microsoft / collected KEV context

cve-program · CVE-2026-64564

• https://git.kernel.org/stable/c/a9ce31be4cb1a5dd82b3e0a1d0c3e7cbdcd31293
• https://git.kernel.org/stable/c/a63afa1f9b12d5293cbe0b77fd45dc0632533a13
• https://git.kernel.org/stable/c/2b324ba3494ae958cba16a453e3e71489b4de7fc
• https://git.kernel.org/stable/c/fedeb4468987bcaff85fe3061de5ae052d414740
• https://git.kernel.org/stable/c/74e8f3e7114f0e26d1b2c4c048044db9fcc27603
• https://git.kernel.org/stable/c/85aca407c560aba81b5ce9d3d6cf94c74077d19b
• https://git.kernel.org/stable/c/d136b29bf91dd8e3161281b87de597b7311d9462
• https://git.kernel.org/stable/c/9b2854f86f0b56e9027d68e7a3fc909d1a9b566f
• https://matrix.tencent.com/en/2026/08/06/sctphantom-CVE-2026-64564

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