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Linux CVE-2026-23366

| EUVD-2026-15348 MEDIUM
NULL Pointer Dereference (CWE-476)
2026-03-25 Linux
5.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

5
CVSS changed
Apr 24, 2026 - 18:52 NVD
5.5 (MEDIUM)
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 25, 2026 - 10:45 euvd
EUVD-2026-15348
Analysis Generated
Mar 25, 2026 - 10:45 vuln.today
CVE Published
Mar 25, 2026 - 10:27 nvd
N/A

DescriptionNVD

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.

AnalysisAI

A NULL pointer dereference vulnerability exists in the Linux kernel's DRM client subsystem within the drm_client_modeset_probe function. When memory allocation for the 'modes' variable fails via kcalloc, the error handling path incorrectly attempts to destroy a NULL pointer, leading to a kernel panic or denial of service. …

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Vendor StatusVendor

Debian

linux
Release Status Fixed Version Urgency
bullseye not-affected - -
bullseye (security) fixed 5.10.251-1 -
bookworm not-affected - -
bookworm (security) fixed 6.1.164-1 -
trixie not-affected - -
trixie (security) fixed 6.12.74-2 -
forky, sid fixed 6.19.8-1 -
(unstable) fixed 6.19.8-1 -

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CVE-2026-23366 vulnerability details – vuln.today

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