CVE-2026-68248
Received Received - Intake

NULL Return on Error in Linux Kernel DRM/i915 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: Return NULL on error in active_instance Avoid returning &node->base when node is NULL due to OOM during GFP_ATOMIC allocation. Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 6029bc064f0b1bac184203a50fbaaf070fa18832)

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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-2026-68248
EUVD
EUVD-2026-55349

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel to 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (inc)

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Exploitability

CWE
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves a function in the DRM/i915 driver that could return an invalid memory address when an error occurs. Specifically, if a memory allocation fails during a GFP_ATOMIC operation, the function might return &node->base even when node is NULL, leading to potential null pointer dereference issues.

Detection Guidance

This vulnerability is specific to the Linux kernel's drm/i915 driver and may not have direct detection commands. Monitor kernel logs for NULL pointer dereference errors or OOM-related crashes in the i915 module. Check for system crashes or graphical issues that may indicate exploitation.

Impact Analysis

This vulnerability could cause system instability or crashes if exploited, as it may lead to null pointer dereferences in the Linux kernel. Users relying on affected systems might experience unexpected failures or security issues.

Mitigation Strategies

Update the Linux kernel to the latest stable version that includes the fix for this vulnerability. If immediate patching is not possible, consider disabling the i915 module if not required, or apply kernel hardening measures to reduce attack surface.

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