CVE-2025-22071

Service interruption via leaked SPU context reference

Published Apr 16, 2025 · Updated May 11, 2026

Memory leak in Linux kernel SPUFS allows local users to interrupt service through failed affinity-context creation. In spufs_create_context, the failure path after spufs_mkdir retains the neighbor reference instead of calling put_spu_context. Reachability requires a PowerPC Cell system, write access to mounted SPUFS, an affinity request, and a directory-creation failure.

CVSS severity5.5
Medium
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

Memory leak in Linux kernel SPUFS allows local users to interrupt service through failed affinity-context creation. In spufs_create_context, the failure path after spufs_mkdir retains the neighbor reference instead of calling put_spu_context. Reachability requires a PowerPC Cell system, write access to mounted SPUFS, an affinity request, and a directory-creation failure.

The record

CVE
CVE-2025-22071
Published
Apr 16, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 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=2.6.25
  2. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <0f5cce3fc55b08ee4da3372baccf4bcd36a98396
  3. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <239ea3c34673b3244a499fd65771c47e5bffcbb0
  4. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <410c787d89c92df4215d7b1a338e2c1a8aba6b9b
  5. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <4a7448c83e117ed68597952ecaede1cebc4427a7
  6. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <5a90b699844a5bb96961e5892e51cc59255444a3
  7. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <829bd6139968e2e759f3928cf65ad0db1e302fe3
  8. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <a333f223e555d27609f8b45d75a08e8e1d36c432
  9. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <c4e72a0d75442237b6f3bcca10a7d81b89376d16
  10. Affected versionversion=58119068cb27ef7513f80aff44b62a3a8f40ef5f <d04600f43569d48262e1328eaa1592fcefa2c19c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.25; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <0f5cce3fc55b08ee4da3372baccf4bcd36a98396; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <239ea3c34673b3244a499fd65771c47e5bffcbb0; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <410c787d89c92df4215d7b1a338e2c1a8aba6b9b; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <4a7448c83e117ed68597952ecaede1cebc4427a7; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <5a90b699844a5bb96961e5892e51cc59255444a3; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <829bd6139968e2e759f3928cf65ad0db1e302fe3; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <a333f223e555d27609f8b45d75a08e8e1d36c432; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <c4e72a0d75442237b6f3bcca10a7d81b89376d16; version=58119068cb27ef7513f80aff44b62a3a8f40ef5f <d04600f43569d48262e1328eaa1592fcefa2c19c

Published CVSS scores

5.5NIST NVDCVSS: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
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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