exfat: bound uniname advance in exfat_find_dir_entry()

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

CVE-2026-64296 · Microsoft / collected KEV context

cve-program · CVE-2026-64296

• https://git.kernel.org/stable/c/72a2589d82eb001c94b74bcfe6f9a599bd9bef60
• https://git.kernel.org/stable/c/fae76a94b35ee8c0e2eb6f64caca01d75c6d34e4
• https://git.kernel.org/stable/c/cf85180b8a015029ee147694eaf4e0b3537e9432
• https://git.kernel.org/stable/c/ce4736c1e6c4cfbf1ac409a8c328a0b69546c9a0
• https://git.kernel.org/stable/c/727bf7783a2936ffd55c628dddfd69343e511dcf
• https://git.kernel.org/stable/c/33c0b96d7e1672be1de0053786637ea46fb81507
• https://git.kernel.org/stable/c/c8e041c68c0bbb73aa62371ee63947bb6949d8b2
• https://git.kernel.org/stable/c/3a1230e7b043c62737b05a3e9275ca83a43ad20a

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