---
id: CVE-2024-26598
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache

  There is a potential UAF scenario in the case of an LPI translation
  cache hit racing with an operati…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache

  There is a potential UAF scenario in the case of an LPI translation
  cache hit racing with an operati…
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-416
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.4, < 5.4.269'
  - 'linux_kernel >= 5.5, < 5.10.209'
  - 'linux_kernel >= 5.11, < 5.15.148'
  - 'linux_kernel >= 5.16, < 6.1.75'
  - 'linux_kernel >= 6.2, < 6.6.14'
  - 'linux_kernel >= 6.7, < 6.7.2'
  - debian_linux = 10.0
patched:
  - linux_kernel 6.7.2
published: '2024-02-23'
updated: '2026-08-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-26598'
references:
  - url: 'https://git.kernel.org/stable/c/12c2759ab1343c124ed46ba48f27bd1ef5d2dff4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/65b201bf3e9af1b0254243a5881390eda56f72d1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ad362fe07fecf0aba839ff2cc59a3617bd42c33f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ba7be666740847d967822bed15500656b26bc703'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d04acadb6490aa3314f9c9e087691e55de153b88'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/dba788e25f05209adf2b0175eb1691dc89fb1ba6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/dd3956a1b3dd11f46488c928cb890d6937d1ca80'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/12c2759ab1343c124ed46ba48f27bd1ef5d2dff4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/65b201bf3e9af1b0254243a5881390eda56f72d1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/ad362fe07fecf0aba839ff2cc59a3617bd42c33f'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/ba7be666740847d967822bed15500656b26bc703'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/d04acadb6490aa3314f9c9e087691e55de153b88'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/dba788e25f05209adf2b0175eb1691dc89fb1ba6'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/dd3956a1b3dd11f46488c928cb890d6937d1ca80'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.0024
epssPercentile: 0.13449
ingestedAt: '2026-08-04T11:39:45.530Z'
---

## Overview

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

KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache

There is a potential UAF scenario in the case of an LPI translation
cache hit racing with an operation that invalidates the cache, such
as a DISCARD ITS command. The root of the problem is that
vgic_its_check_cache() does not elevate the refcount on the vgic_irq
before dropping the lock that serializes refcount changes.

Have vgic_its_check_cache() raise the refcount on the returned vgic_irq
and add the corresponding decrement after queueing the interrupt.

## Affected

- `linux_kernel >= 5.4, < 5.4.269`
- `linux_kernel >= 5.5, < 5.10.209`
- `linux_kernel >= 5.11, < 5.15.148`
- `linux_kernel >= 5.16, < 6.1.75`
- `linux_kernel >= 6.2, < 6.6.14`
- `linux_kernel >= 6.7, < 6.7.2`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.7.2`