---
id: CVE-2026-72286
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs

  The intra-host migration/mirroring feature is not fully implemented for
  SEV-SNP VMs
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs

  The intra-host migration/mirroring feature is not fully implemented for
  SEV-SNP VMs. The proper migrat…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-665
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 9
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:17:18.883'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72286'
references:
  - url: 'https://git.kernel.org/stable/c/6ee4140788234a6fabf59e6a50e38cdb936008cd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b70404b89daad5f9f33f7ac640b1065cba639935'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ba06690b28be950bd46d938d9b919c4024292627'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d2f9df3b615ca0cd45899c090366945528186052'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72286.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-72286'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2516683'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-72286'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72286'
  - url: 'https://kernelcve.org/list/?q=CVE-2026-72286'
  - url: >-
      https://lore.kernel.org/linux-cve-announce/2026081559-CVE-2026-72286-6e63@gregkh/T
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.00175
epssPercentile: 0.06961
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:45:45.786845Z'
scores:
  nvd: 8.8
  vendor: 5.5
  cna: 8.8
ingestedAt: '2026-10-16T19:46:24.413Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs

The intra-host migration/mirroring feature is not fully implemented for
SEV-SNP VMs. The proper migration requires additional SNP-specific
state such as guest_req_mutex, guest_req_buf, and guest_resp_buf to be
transferred or initialized on the destination.

The SNP VM mirroring requires vmsa features to be copied as well otherwise
ASID would be bound to SNP range while VM is detected as a SEV VM.

Reject SNP source VMs in migration/mirroring until proper SNP state
transfer is implemented.


[sean: let lines poke past 80 chars, tag for stable]

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72286.json)