md: do overflow check for sb->bblog_shift in super_1_load()

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

CVE-2026-89557 · Microsoft / collected KEV context

cve-program · CVE-2026-89557

• https://git.kernel.org/stable/c/94c820d99a4305d4ded41a97ed37ec7d26c56e7f
• https://git.kernel.org/stable/c/573fb68105fdc6a127ba6069e58a0d2aff3c9f93
• https://git.kernel.org/stable/c/323f3a056dbccb39a642ebde642044a680f3a6d6
• https://git.kernel.org/stable/c/0a03f9541c06fda64301dcf94f376f07ce2cc396
• https://git.kernel.org/stable/c/75d15738fd33a782606d0dc80cfeff47edf2ddd8
• https://git.kernel.org/stable/c/3b097416b4cff77285c1f472fc2c4058d8a7554f
• https://git.kernel.org/stable/c/df7d4d011d5ace20699ea948712f09f9ac08924f
• https://git.kernel.org/stable/c/35d522bd32462afcf1981dab6da8a9256c26c1e0

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