CVE-2023-54075

Resource leak via unbalanced device-tree node references

Published Dec 24, 2025 · Updated Dec 24, 2025

Reference-count leak in Linux kernel 6.3 allows attackers to retain device-tree node references during MediaTek ASoC parsing. The parse_dai_link_info function exits early from for_each_available_child_of_node paths without calling of_node_put, leaving references obtained by the loop unbalanced. Reachability requires MediaTek ASoC device-tree parsing to take an affected early-return path; public sources identify no attacker control or resulting crash, hang, or privilege impact.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reference-count leak in Linux kernel 6.3 allows attackers to retain device-tree node references during MediaTek ASoC parsing. The parse_dai_link_info function exits early from for_each_available_child_of_node paths without calling of_node_put, leaving references obtained by the loop unbalanced. Reachability requires MediaTek ASoC device-tree parsing to take an affected early-return path; public sources identify no attacker control or resulting crash, hang, or privilege impact.

The record

CVE
CVE-2023-54075
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
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?

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  1. Affected versionversion=4302187d955f166c03b4fa7c993b89ffbabfca4e <3e40722d55805584dc04d8594d912820cafb2432
  2. Affected versionversion=4302187d955f166c03b4fa7c993b89ffbabfca4e <beed115c2ce78f990222a29abed042582df4e87c
  3. Affected versionversion=6.3

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4302187d955f166c03b4fa7c993b89ffbabfca4e <3e40722d55805584dc04d8594d912820cafb2432; version=4302187d955f166c03b4fa7c993b89ffbabfca4e <beed115c2ce78f990222a29abed042582df4e87c; version=6.3

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
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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