---
id: CVE-2026-80915
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/xe: Fix DPT allocation paths.

  Remove the fallback for VRAM to system memory, I tested it and that
  doesn't work at all, only a black screen with pipe fault errors w…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/xe: Fix DPT allocation paths.

  Remove the fallback for VRAM to system memory, I tested it and that
  doesn't work at all, only a black screen with pipe fault errors w…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 775d0adc01a55fe0458139330415d86bb3533efe <
    491c499295fb0b90308b230b0a1075dcdf7f4d12
  - >-
    Linux >= 775d0adc01a55fe0458139330415d86bb3533efe <
    f03415030579163f791c978741af7f1f2f6510b7
  - >-
    Linux >= 775d0adc01a55fe0458139330415d86bb3533efe <
    c457e2c845ccbf2224386029f3da4937ba424db0
  - >-
    Linux >= 775d0adc01a55fe0458139330415d86bb3533efe <
    fc648757908304aedbad74f74bf58192aec383db
  - Linux 4854ac2f88e2168ee4da2b152c6711772a8149aa
  - Linux >= 6.11.3 < 6.12
  - Linux 6.12
published: '2026-09-09'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T17:17:46.390'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80915'
references:
  - url: 'https://git.kernel.org/stable/c/491c499295fb0b90308b230b0a1075dcdf7f4d12'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c457e2c845ccbf2224386029f3da4937ba424db0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f03415030579163f791c978741af7f1f2f6510b7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fc648757908304aedbad74f74bf58192aec383db'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80915.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80915'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2531060'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80915'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80915'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80915.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-09-10T20:26:24.107Z'
epss: 0.00156
epssPercentile: 0.04726
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-770
---

## Overview

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

drm/xe: Fix DPT allocation paths.

Remove the fallback for VRAM to system memory, I tested it and that
doesn't work at all, only a black screen with pipe fault errors were
observed.

On systems with media GT, extra latency is added when accessing stolen
memory when the GT is in MC6. Since we additionally aren't counting how
much memory is used for stolen and we could in theory fill up the
entire stolen area with DPT's, avoid using stolen and only use the
default memory region.

Using stolen may also result in random system hangs under load.

(cherry picked from commit a196406a3831291598fe8e73245914f7acffdfe0)

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Low · 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 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80915.json)