ntfs3: validate split-point offset in indx_insert_into_buffer

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

CVE-2026-72191 · Microsoft / collected KEV context

cve-program · CVE-2026-72191

• https://git.kernel.org/stable/c/8e4ba5a38c155bb3c1c11e63cd285b178cdb099e
• https://git.kernel.org/stable/c/4c2f648139a0a86f4486170f72e24fedd4fae74e
• https://git.kernel.org/stable/c/b232eb5c9fe11ec2368e9b565db69c724c35fbd2
• https://git.kernel.org/stable/c/7bf74e6baf810fe325f111996496c678fc6e244f
• https://git.kernel.org/stable/c/f3624cc069195001c88df7a291af215f2133ff2c
• https://git.kernel.org/stable/c/1758a564b6ebe7f4a82f23c9851d1cae15549457
• https://git.kernel.org/stable/c/f1df9d771df47aa40de6d70949c28720ae1e430d

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