CVE-2023-54147

Kernel crash via unchecked MDP3 ID allocation

Published Dec 24, 2025 · Updated Dec 24, 2025

NULL pointer dereference in the Linux MediaTek MDP3 driver allows attackers to crash the kernel during a video device open. mdp_m2m_open accepts a negative ida_alloc return as ctx->id and continues initializing the video context, reaching the invalid dereference. Triggering the flaw requires access to an MDP3 video device and an ID-allocation failure; failed later initialization also leaks the allocated ID.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
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 MediaTek MDP3 driver allows attackers to crash the kernel during a video device open. mdp_m2m_open accepts a negative ida_alloc return as ctx->id and continues initializing the video context, reaching the invalid dereference. Triggering the flaw requires access to an MDP3 video device and an ID-allocation failure; failed later initialization also leaks the allocated ID.

The record

CVE
CVE-2023-54147
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record 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=6.1
  2. Affected versionversion=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <22b72cad501fb75500cc60af4d92de3066fb6fc2
  3. Affected versionversion=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <4c173a65a2b1cc0556c3f6f0bab82e4fdb449522
  4. Affected versionversion=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <51fc1880e47421ee7b192372e8e86b7bbba40776
  5. Affected versionversion=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <d00f592250782538cda87745607695b0fe27dcd4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.1; version=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <22b72cad501fb75500cc60af4d92de3066fb6fc2; version=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <4c173a65a2b1cc0556c3f6f0bab82e4fdb449522; version=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <51fc1880e47421ee7b192372e8e86b7bbba40776; version=61890ccaefaff89f5babd2c8412fd222c3f5fe38 <d00f592250782538cda87745607695b0fe27dcd4

Published CVSS scores

No CVSS assessment is available in this record.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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