bpf: Reject narrower access to pointer ctx fields

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

CVE-2025-38591 · Microsoft / collected KEV context

cve-program · CVE-2025-38591

• https://git.kernel.org/stable/c/7847c4140e06f6e87229faae22cc38525334c156
• https://git.kernel.org/stable/c/feae34c992eb7191862fb1594c704fbbf650fef8
• https://git.kernel.org/stable/c/33660d44e789edb4f303210c813fc56d56377a90
• https://git.kernel.org/stable/c/e2e9599f3503df7cf3569d2b6c50d5488fb59435
• https://git.kernel.org/stable/c/058a0da4f6d916a79b693384111bb80a90d73763
• https://git.kernel.org/stable/c/202900ceeef67458c964c2af6e1427c8e533ea7c
• https://git.kernel.org/stable/c/e09299225d5ba3916c91ef70565f7d2187e4cca0

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