bpf, sockmap: Take state lock for af_unix iter

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

CVE-2026-53033 · Microsoft / collected KEV context

cve-program · CVE-2026-53033

• https://git.kernel.org/stable/c/c6f4015eac2e3cbc3cb7a17539e10bbb5c2049c3
• https://git.kernel.org/stable/c/d0d124dbcef9318e326956137b31671407094bd4
• https://git.kernel.org/stable/c/1a59cc6b65fd3ad9915aae5970d859109d4ce9fb
• https://git.kernel.org/stable/c/921920c34cb591947dd30c692500795a69f1e3fa
• https://git.kernel.org/stable/c/98f744d204e5d6fca589cd2c44c3190a0c71697f
• https://git.kernel.org/stable/c/64c2f93fc3254d3bf5de4445fb732ee5c451edb6

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