CVE-2026-68242
Received Received - Intake

NULL Dereference in Linux Kernel Intel Graphics Driver

Publication date: 2026-08-10

Last updated on: 2026-08-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Fix NULL deref on sched_engine alloc failure Avoid using intel_context_put() before intel_context_init() in execlists_create_virtual() as the kref_put() inside would lead to NULL deref on the IOCTL path when sched_engine allocation fails. Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 4f2a12f2d50e9f48227656e4dcbd6423506be31d)

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Meta Information

Published
2026-08-10
Last Modified
2026-08-10
Generated
2026-08-10
AI Q&A
2026-08-10
EPSS Evaluated
N/A
NVD
CVE-2026-68242
EUVD
EUVD-2026-55343

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
intel linux_kernel *

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a NULL pointer dereference vulnerability in the Linux kernel's i915 graphics driver. It occurs when the scheduler engine fails to allocate memory during virtual context creation. The issue arises from calling intel_context_put() before intel_context_init(), which can lead to a crash when handling IOCTL requests.

Impact Analysis

This vulnerability could cause system crashes or instability when running graphics-intensive applications on affected Intel-based Linux systems. Users might experience sudden freezes, application crashes, or kernel panics during normal operation.

Mitigation Strategies

Update your Linux kernel to the latest patched version to resolve the NULL deref issue in the drm/i915/gt component. Check with your distribution vendor for kernel updates addressing CVE-2026-68242.

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