---
id: CVE-2026-80665
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN

  kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort
  when kvm_translate_vncr() ret…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN

  kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort
  when kvm_translate_vncr() ret…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'
published: '2026-08-28'
updated: '2026-08-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80665'
references:
  - url: 'https://git.kernel.org/stable/c/4ead4def04659739c399bfcb063f8a906194c79f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/53804b6839573c9c6fff5f4cf075d6746267345e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9f3e83345a56280efffe235c65593c7e544c0fcc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80665.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80665'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2525423'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80665'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80665'
  - url: >-
      https://lore.kernel.org/linux-cve-announce/2026082847-CVE-2026-80665-615f@gregkh/T
tags:
  - nvd
  - csaf
  - vex
  - red-hat
epss: 0.00207
epssPercentile: 0.1077
ingestedAt: '2026-08-30T04:47:09.957Z'
vendor: Red Hat
product: Red Hat Enterprise Linux 10
affected:
  - enterprise_linux 10
cwe:
  - CWE-253
scores:
  nvd: 7.1
  vendor: 5.5
---

## Overview

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

KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN

kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort
when kvm_translate_vncr() returns -EFAULT. This is not always the case
as it's possible to encounter 'late' failures on the output of S1
translation, e.g. a GFN outside of the memslots.

Fix it by preparing an external abort before returning from
kvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection
path while at it.

## 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 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80665.json)