---
id: CVE-2026-98649
title: 'KVM: s390: Fix race in _destroy_pages_crste()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  KVM: s390: Fix race in _destroy_pages_crste()

  Use READ_ONCE() in _destroy_pages_crste() to read the crste, avoid
  dereferencing the pointer multiple times.
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= a2c17f9270cc3f1c55c35e8b1d151f41d75b40f5 <
    90bd832b2bc367991d424d847003ce345b454ffc
  - >-
    Linux >= a2c17f9270cc3f1c55c35e8b1d151f41d75b40f5 <
    4ca00a9154f998116fba9a32cce5bd938d228065
  - Linux 7.0
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:20:21.346Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98649'
references:
  - url: 'https://git.kernel.org/stable/c/90bd832b2bc367991d424d847003ce345b454ffc'
  - url: 'https://git.kernel.org/stable/c/4ca00a9154f998116fba9a32cce5bd938d228065'
tags:
  - cve.org
ingestedAt: '2026-10-18T15:45:12.228Z'
---

## Overview

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

KVM: s390: Fix race in _destroy_pages_crste()

Use READ_ONCE() in _destroy_pages_crste() to read the crste, avoid
dereferencing the pointer multiple times.

## Affected

- `Linux >= a2c17f9270cc3f1c55c35e8b1d151f41d75b40f5 < 90bd832b2bc367991d424d847003ce345b454ffc`
- `Linux >= a2c17f9270cc3f1c55c35e8b1d151f41d75b40f5 < 4ca00a9154f998116fba9a32cce5bd938d228065`
- `Linux 7.0`

## Remediation

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