CVE-2023-52571

Kernel memory retention via unreleased device-tree node

Published Mar 2, 2024 · Updated May 23, 2026

Resource leakage in the Linux rk817 charger driver allows local users to consume kernel memory through driver lifecycle events. The rk817_charger_probe function increments the charger device-tree node reference but omits of_node_put on several error exits and at driver removal. Exposure requires an affected kernel on a system using the RK817 charger device-tree path; the disclosed code path retains kernel resources.

CVSS severity7.1
High
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

Resource leakage in the Linux rk817 charger driver allows local users to consume kernel memory through driver lifecycle events. The rk817_charger_probe function increments the charger device-tree node reference but omits of_node_put on several error exits and at driver removal. Exposure requires an affected kernel on a system using the RK817 charger device-tree path; the disclosed code path retains kernel resources.

The record

CVE
CVE-2023-52571
Published
Mar 2, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 2, 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=54c03bfd094fb74f9533a9c28250219afe182382 <488ef44c068e79752dba8eda0b75f524f111a695
  2. Affected versionversion=54c03bfd094fb74f9533a9c28250219afe182382 <70326b46b6a043f7e7404b2ff678b033c06d6577
  3. Affected versionversion=6.1.2 <6.1.56
  4. Affected versionversion=6.2
  5. Affected versionversion=7d1e3961725e69774871b081a065c2b3640c5f0e <fe6406238d5a24e9fb0286c71edd67b99d8db58d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=54c03bfd094fb74f9533a9c28250219afe182382 <488ef44c068e79752dba8eda0b75f524f111a695; version=54c03bfd094fb74f9533a9c28250219afe182382 <70326b46b6a043f7e7404b2ff678b033c06d6577; version=6.1.2 <6.1.56; version=6.2; version=7d1e3961725e69774871b081a065c2b3640c5f0e <fe6406238d5a24e9fb0286c71edd67b99d8db58d

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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-401Missing Release of Memory after Effective Lifetime
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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