vhost/vdpa: validate virtqueue index in mmap and fault paths

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

CVE-2026-74312 · Microsoft / collected KEV context

cve-program · CVE-2026-74312

• https://git.kernel.org/stable/c/0f310bac6db9bd3bb1655707d692d9d2a86eeb17
• https://git.kernel.org/stable/c/4bf5a51963ff816f7443702dc536b9327cf5e550
• https://git.kernel.org/stable/c/55a644031e610ea93fbde2702c7b8f267476552f
• https://git.kernel.org/stable/c/2b3f79b90b231a682315fe2191bb71925650e183
• https://git.kernel.org/stable/c/bbba4f92515238d76018e9b75e41b16d83df52c8
• https://git.kernel.org/stable/c/1f5f94c6c6b2e4eaa5b45815509e21d0c6cfa81e
• https://git.kernel.org/stable/c/32ac9097aa2463fcfc12f61cc4a9ebc3579cba7d
• https://git.kernel.org/stable/c/929e4f044621c8cc30b612fb74e1410bef09e41b

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