---
id: CVE-2026-68243
title: 'drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU

  Setting context engine slot N into I915_ENGINE_CLASS_INVALID /
  I915_ENGINE_CLASS_INVALID_NONE and attempting to…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 <
    97a4872ef927dee301d76085cb19f6e36d4a53a4
  - >-
    Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 <
    b226dee4ee1fff2909f79e8ad700b7082f8d3569
  - >-
    Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 <
    edd2edaca52ada833c341c8b264aaea9dd93369c
  - >-
    Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 <
    9923c223d38fcd9602f41cc31d480e5299d9a38e
  - >-
    Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 <
    726f27bca93e6c83b263542669132ee1d0eb693e
  - >-
    Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 <
    97f236379f06a5082d37c6a764edd56bb58a94cd
  - >-
    Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 <
    2b56757a9a7456825eb668fde92299e01c5e2721
  - Linux 5.15
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:45:32.122540Z'
published: '2026-08-10'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:55:10.480Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-68243'
references:
  - url: 'https://git.kernel.org/stable/c/97a4872ef927dee301d76085cb19f6e36d4a53a4'
  - url: 'https://git.kernel.org/stable/c/b226dee4ee1fff2909f79e8ad700b7082f8d3569'
  - url: 'https://git.kernel.org/stable/c/edd2edaca52ada833c341c8b264aaea9dd93369c'
  - url: 'https://git.kernel.org/stable/c/9923c223d38fcd9602f41cc31d480e5299d9a38e'
  - url: 'https://git.kernel.org/stable/c/726f27bca93e6c83b263542669132ee1d0eb693e'
  - url: 'https://git.kernel.org/stable/c/97f236379f06a5082d37c6a764edd56bb58a94cd'
  - url: 'https://git.kernel.org/stable/c/2b56757a9a7456825eb668fde92299e01c5e2721'
tags:
  - cve.org
epss: 0.00173
epssPercentile: 0.06698
ingestedAt: '2026-11-06T18:00:12.618Z'
---

## Overview

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

drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU

Setting context engine slot N into I915_ENGINE_CLASS_INVALID /
I915_ENGINE_CLASS_INVALID_NONE and attempting to apply
I915_CONTEXT_PARAM_SSEU to the same slot N will deref NULL.
Fix that.

Discovered using AI-assisted static analysis confirmed by
Intel Product Security.

(cherry picked from commit 36eda5b5c2d40da41cc0a5403c26986237cf9e87)

## Affected

- `Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 < 97a4872ef927dee301d76085cb19f6e36d4a53a4`
- `Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 < b226dee4ee1fff2909f79e8ad700b7082f8d3569`
- `Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 < edd2edaca52ada833c341c8b264aaea9dd93369c`
- `Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 < 9923c223d38fcd9602f41cc31d480e5299d9a38e`
- `Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 < 726f27bca93e6c83b263542669132ee1d0eb693e`
- `Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 < 97f236379f06a5082d37c6a764edd56bb58a94cd`
- `Linux >= d4433c7600f794623d6802395542cf4ca4f1b1f9 < 2b56757a9a7456825eb668fde92299e01c5e2721`
- `Linux 5.15`

## Remediation

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