CVE-2026-23039

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Source

https://cve.org/CVERecord?id=CVE-2026-23039

Import Source

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-23039

Downstream

Published

2026-01-31T11:42:33.377Z

Modified

2026-04-02T13:11:48.607200Z

Summary

drm/gud: fix NULL fb and crtc dereferences on USB disconnect

Details

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

drm/gud: fix NULL fb and crtc dereferences on USB disconnect

On disconnect drmatomichelperdisableall() is called which sets both the fb and crtc for a plane to NULL before invoking a commit.

This causes a kernel oops on every display disconnect.

Add guards for those dereferences.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23039.json"
}

References

Affected packages

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

73cfd166e045769a1b42d36897accaa6e06b8102

Fixed

a255ec07f91d4c73a361a28b7a3d82f5710245f1

Fixed

dc2d5ddb193e363187bae2ad358245642d2721fb

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23039.json"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23039.json"