CVE-2025-38344

Availability loss via incomplete AML operation cleanup

Published Jul 10, 2025 · Updated May 11, 2026

Resource leakage in affected Linux kernels allows local users to interrupt ACPI initialization when malformed AML aborts parsing. In drivers/acpi/acpica/psobject.c, acpi_ps_complete_final_op() leaves pending parse operations incomplete on some error paths, retaining Acpi-Parse objects. Reachability requires local low-privileged access and an early ACPI parse abort; the documented consequence is loss of availability.

CVSS severity5.5
Medium
EPSS probability0.17%
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 affected Linux kernels allows local users to interrupt ACPI initialization when malformed AML aborts parsing. In drivers/acpi/acpica/psobject.c, acpi_ps_complete_final_op() leaves pending parse operations incomplete on some error paths, retaining Acpi-Parse objects. Reachability requires local low-privileged access and an early ACPI parse abort; the documented consequence is loss of availability.

The record

CVE
CVE-2025-38344
Published
Jul 10, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=2.6.14
  2. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <0a119fdaed67566aa3e0b5222dced4d08bbce463
  3. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <198c2dab022e5e94a99fff267b669d693bc7bb49
  4. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <1e0e629e88b1f7751ce69bf70cda6d1598d45271
  5. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <1fee4324b5660de080cefc3fc91c371543bdb8f6
  6. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <3e0c59180ec83bdec43b3d3482cff23d86d380d0
  7. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <41afebc9a0762aafc35d2df88f4e1b798155a940
  8. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <960236150cd3f08e13b397dd5ae4ccf7a2986c00
  9. Affected versionversion=88ac00f5a841dcfc5c682000f4a6add0add8caac <bed18f0bdcd6737a938264a59d67923688696fc4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.14; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <0a119fdaed67566aa3e0b5222dced4d08bbce463; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <198c2dab022e5e94a99fff267b669d693bc7bb49; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <1e0e629e88b1f7751ce69bf70cda6d1598d45271; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <1fee4324b5660de080cefc3fc91c371543bdb8f6; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <3e0c59180ec83bdec43b3d3482cff23d86d380d0; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <41afebc9a0762aafc35d2df88f4e1b798155a940; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <960236150cd3f08e13b397dd5ae4ccf7a2986c00; version=88ac00f5a841dcfc5c682000f4a6add0add8caac <bed18f0bdcd6737a938264a59d67923688696fc4

Published CVSS scores

6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5SUSECVSS: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-401Missing Release of Memory after Effective Lifetime
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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