CVE-2024-43894

Local kernel crash via unchecked mode duplication

Published Aug 26, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux kernel DRM client allows local users to crash the kernel during modeset probing. drm_client_modeset_probe() stores a failed drm_mode_duplicate() call's NULL return in modeset->mode and dereferences it without checking. A low-privilege local context and a mode-duplication allocation failure are required; the documented consequence is a kernel crash, not data access or modification.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel DRM client allows local users to crash the kernel during modeset probing. drm_client_modeset_probe() stores a failed drm_mode_duplicate() call's NULL return in modeset->mode and dereferences it without checking. A low-privilege local context and a mode-duplication allocation failure are required; the documented consequence is a kernel crash, not data access or modification.

The record

CVE
CVE-2024-43894
Published
Aug 26, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.3
  2. Affected versionversion=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <113fd6372a5bb3689aba8ef5b8a265ed1529a78f
  3. Affected versionversion=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <24ddda932c43ffe156c7f3c568bed85131c63ae6
  4. Affected versionversion=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <5291d4f73452c91e8a11f71207617e3e234d418e
  5. Affected versionversion=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <612cae53e99ce32a58cb821b3b67199eb6e92dff
  6. Affected versionversion=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <c763dfe09425152b6bb0e348900a637c62c2ce52
  7. Affected versionversion=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <d64847c383100423aecb6ac5f18be5f4316d9d62
  8. Affected versionversion=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <d64fc94f7bb24fc2be0d6bd5df8df926da461a6d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.3; version=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <113fd6372a5bb3689aba8ef5b8a265ed1529a78f; version=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <24ddda932c43ffe156c7f3c568bed85131c63ae6; version=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <5291d4f73452c91e8a11f71207617e3e234d418e; version=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <612cae53e99ce32a58cb821b3b67199eb6e92dff; version=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <c763dfe09425152b6bb0e348900a637c62c2ce52; version=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <d64847c383100423aecb6ac5f18be5f4316d9d62; version=cf13909aee054f5aa667d4b9da0ac7df4f6c1327 <d64fc94f7bb24fc2be0d6bd5df8df926da461a6d

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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