netfilter: nf_conntrack_reasm: guard mac_header adjustment after IPv6 defrag

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

CVE-2026-72250 · Microsoft / collected KEV context

cve-program · CVE-2026-72250

• https://git.kernel.org/stable/c/6e8cd710ca35c576f5f2e5a396047c9ac61f75e5
• https://git.kernel.org/stable/c/2a95ec21824a8ad81ad660b12231456fc0ac9830
• https://git.kernel.org/stable/c/bbcdef2061b170af45702ce6b359c02c12acfc94
• https://git.kernel.org/stable/c/cd0d7bbc027b4d3329712cdcdeb4e5567ffd0d58
• https://git.kernel.org/stable/c/53ef70a315420ed31581d38343684b3bf9a3c76d
• https://git.kernel.org/stable/c/a58230f3a7c4f6c3261786bc1efb72c42e68cd25
• https://git.kernel.org/stable/c/00bdce2fda7e430d24cfbc96764a1b96deb31f82
• https://git.kernel.org/stable/c/3b08fed5b7e0d5e3a25d73ef3ba09cd33ade16c9

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