CVE-2024-53056

Kernel crash via unchecked MediaTek command-queue channel

Published Nov 19, 2024 · Updated May 23, 2026

A NULL pointer dereference in the MediaTek DRM driver in affected Linux kernels allows local users to crash the kernel. After mbox_request_channel() fails, mtk_crtc_create() leaves cmdq_client.chan NULL without creating a command packet, but mtk_crtc_destroy() still passes that channel to cmdq_pkt_destroy(). Access to a system using the affected MediaTek display path is required, and the resulting fault interrupts that host rather than exposing or modifying data.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A NULL pointer dereference in the MediaTek DRM driver in affected Linux kernels allows local users to crash the kernel. After mbox_request_channel() fails, mtk_crtc_create() leaves cmdq_client.chan NULL without creating a command packet, but mtk_crtc_destroy() still passes that channel to cmdq_pkt_destroy(). Access to a system using the affected MediaTek display path is required, and the resulting fault interrupts that host rather than exposing or modifying data.

The record

CVE
CVE-2024-53056
Published
Nov 19, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=2c4396693698e876e559768d3d3a150c672ec384
  2. Affected versionversion=5.15.54 <5.16
  3. Affected versionversion=5.17
  4. Affected versionversion=7627122fd1c06800a1fe624e9fb3c269796115e8 <4018651ba5c409034149f297d3dd3328b91561fd
  5. Affected versionversion=7627122fd1c06800a1fe624e9fb3c269796115e8 <c60583a87cb4a85b69d1f448f0be5eb6ec62cbb2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2c4396693698e876e559768d3d3a150c672ec384; version=5.15.54 <5.16; version=5.17; version=7627122fd1c06800a1fe624e9fb3c269796115e8 <4018651ba5c409034149f297d3dd3328b91561fd; version=7627122fd1c06800a1fe624e9fb3c269796115e8 <c60583a87cb4a85b69d1f448f0be5eb6ec62cbb2

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA ADPCVSS: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

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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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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