Virtio-GPU Kernel Crash on Driver Removal with Disabled KMS

Publication date: 2026-07-01

Last updated on: 2026-07-22

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix driver removal with disabled KMS DRM atomic and modesetting aren't initialized if virtio-gpu driver built with disabled KMS, leading to access of uninitialized data on driver removal/unbinding and crashing kernel. Fix it by skipping shutting down atomic core with unavailable KMS.

CVSS Scores

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Meta Information

Published

2026-07-01

Last Modified

2026-07-22

Generated

2026-08-11

AI Q&A

2026-07-01

EPSS Evaluated

2026-08-10

NVD

CVE-2026-53347

EUVD

EUVD-2026-40981

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	From 6.13 (inc) to 6.18.36 (exc)
linux	linux_kernel	From 6.7 (inc) to 6.12.94 (exc)
linux	linux_kernel	From 6.19 (inc) to 7.0.13 (exc)
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	From 6.4 (inc) to 6.6.143 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-908	The product uses or accesses a resource that has not been initialized.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Linux kernel's drm/virtio driver when the virtio-gpu driver is built with Kernel Mode Setting (KMS) disabled. In this scenario, DRM atomic and modesetting are not initialized properly. When the driver is removed or unbound, it attempts to access uninitialized data, which can cause the kernel to crash. The fix involves skipping the shutdown of the atomic core when KMS is unavailable.

Impact Analysis

This vulnerability can lead to a kernel crash when the affected driver is removed or unbound. Such crashes can cause system instability, potential denial of service, and unexpected reboots, which may disrupt normal operations on systems using the affected Linux kernel with the virtio-gpu driver built with disabled KMS.

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