CVE-2023-54047

Kernel crash via omitted DRM encoder cleanup

Published Dec 24, 2025 · Updated Dec 24, 2025

A use-after-free in Linux's Rockchip HDMI driver allows local users to crash kernels 4.9 through 6.1.29 and 6.2 through 6.3.3 during removal. The unbind path omits drm_encoder_cleanup before component memory is freed, leaving the embedded encoder referenced until later DRM-device destruction. Reaching the flaw requires CAP_SYS_MODULE permission and an affected Rockchip HDMI configuration; triggering it crashes the running kernel.

CVSS severityUnavailable
Unscored
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A use-after-free in Linux's Rockchip HDMI driver allows local users to crash kernels 4.9 through 6.1.29 and 6.2 through 6.3.3 during removal. The unbind path omits drm_encoder_cleanup before component memory is freed, leaving the embedded encoder referenced until later DRM-device destruction. Reaching the flaw requires CAP_SYS_MODULE permission and an affected Rockchip HDMI configuration; triggering it crashes the running kernel.

The record

CVE
CVE-2023-54047
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <110d4202522373d629d14597af9bac97eb58bd67
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <218fe9b624545f4bcfb16cdb35ac3d60c8b0d8c7
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b5af48eedcb53491c02ded55d5991e03d6da6dbf

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <110d4202522373d629d14597af9bac97eb58bd67; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <218fe9b624545f4bcfb16cdb35ac3d60c8b0d8c7; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b5af48eedcb53491c02ded55d5991e03d6da6dbf

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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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