---
id: CVE-2026-98510
title: >-
  kernel: drm/xe/vm: nuke PTs only after unlinking contested VMAs
  (CVE-2026-98510)
summary: >-
  A flaw was found in the Linux kernel's Intel Xe graphics driver. When closing
  a GPU virtual memory space, page tables were destroyed before contested
  virtual memory areas were properly unlinked from shared buffer objects. A
  concurrent thre…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-476
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-10-18'
updated: '2026-10-24'
sourceUpdated: '2026-10-24T14:23:26+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98510.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98510.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98510'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2554850'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98510'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98510'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98510.mbox
  - url: 'https://git.kernel.org/stable/c/70fddc065ac80845ffd33095b3635d59883cf7e6'
  - url: 'https://git.kernel.org/stable/c/ba678c2b02e0d36b53deb5a6d5e5ea044d36def7'
  - url: 'https://git.kernel.org/stable/c/bddaa5e4094c134452c29e20a26c4718827e4cb1'
  - url: 'https://git.kernel.org/stable/c/24a22fb3c731474b68e986af6804db450fb88617'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.00168
epssPercentile: 0.06172
scores:
  vendor: 4.7
  cna: 7.8
ingestedAt: '2026-10-18T15:45:12.285Z'
---

## Overview

A flaw was found in the Linux kernel's Intel Xe graphics driver. When closing a GPU virtual memory space, page tables were destroyed before contested virtual memory areas were properly unlinked from shared buffer objects. A concurrent thread evicting a shared buffer object can attempt to access the already-freed page tables, triggering a NULL pointer dereference. A local user can exploit this race condition to crash the operating system, resulting in a Denial of Service (DoS).

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98510.json)

**kernel: drm/xe/vm: nuke PTs only after unlinking contested VMAs** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-24.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

No fix planned:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Fix deferred