vhost/net: complete zerocopy ubufs only once

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

CVE-2026-74310 · Microsoft / collected KEV context

cve-program · CVE-2026-74310

• https://git.kernel.org/stable/c/ea71f873423fb73e66ad88936d6759ac0ad4aa53
• https://git.kernel.org/stable/c/6445b945024f4c7675ae5352b2d5885cb1deea71
• https://git.kernel.org/stable/c/a9f8a1d2e3ff511eafd4c5462481950c2f4d2b5d
• https://git.kernel.org/stable/c/321c73baf54d971ce3771fea275c98a247f7ee35
• https://git.kernel.org/stable/c/c069437924663539a93a1e5afe90838d9ccee284
• https://git.kernel.org/stable/c/8f6898fe80794f2d7c3d38c1158c806e4074a1c4

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