CVE-2026-23366 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/client: Do not destroy NULL modes 'modes' in drm_client_modeset_probe may fail to kcalloc. If this occurs, we jump to 'out', calling modes_destroy on it, which dereferences it. This may result in a NULL pointer dereference in the error case. Prevent that.
A vulnerability in the Linux kernel's Direct Rendering Manager (DRM) client modeset handling can lead to a NULL pointer dereference. This issue arises in the 'drm_client_modeset_probe' function, where the 'modes' variable may fail to allocate memory properly. If this allocation error occurs, the function attempts to call 'modes_destroy' on it, which dereferences the NULL pointer. This flaw can result in a crash or undefined behavior, making it a critical issue to address.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been patched. Instructions for downloading the updated kernel can be found on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/4e3ca5f82346cc23c0a71f1ceb006115ff6b0745 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9aa3e33f0c7f2679ac599a09e3102c8f716a6321 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c601fd5414315fc515f746b499110e46272e7243 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.16.1, < 6.18.17 >= 6.19, < 6.19.7 6.16 - 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 7.0 rc7 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Apr 24, 2026 | Initial Analysis | [email protected] |
| Mar 25, 2026 | New CVE Received | kernel.org |