CVE-2025-22072

Kernel resource corruption via spufs lifetime errors

Published Apr 16, 2025 · Updated Aug 5, 2026

Memory-management errors in affected Linux spufs releases allow local users to cause kernel confidentiality, integrity, and availability impacts. spufs calls simple_rmdir() after a failed gang-directory open without a balanced dentry reference and fails to reverse the root link-count increment after successful gang destruction. Reachability requires a PowerPC Cell system with spufs mounted and write permission to create a gang and retain a context while closing it.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory-management errors in affected Linux spufs releases allow local users to cause kernel confidentiality, integrity, and availability impacts. spufs calls simple_rmdir() after a failed gang-directory open without a balanced dentry reference and fails to reverse the root link-count increment after successful gang destruction. Reachability requires a PowerPC Cell system with spufs mounted and write permission to create a gang and retain a context while closing it.

The record

CVE
CVE-2025-22072
Published
Apr 16, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.22
  2. Affected versionversion=877907d37da9694a34adc9dc3e2ce09400148cb5 <029d8c711f5e5fe8cf63e8a4a1a140a06e224e45
  3. Affected versionversion=877907d37da9694a34adc9dc3e2ce09400148cb5 <324f280806aab28ef757aecc18df419676c10ef8
  4. Affected versionversion=877907d37da9694a34adc9dc3e2ce09400148cb5 <880e7b3da2e765c1f90c94c0539be039e96c7062
  5. Affected versionversion=877907d37da9694a34adc9dc3e2ce09400148cb5 <903733782f3ae28a2f7fe4dfb47c7fe3e079a528
  6. Affected versionversion=877907d37da9694a34adc9dc3e2ce09400148cb5 <c134deabf4784e155d360744d4a6a835b9de4dd4
  7. Affected versionversion=877907d37da9694a34adc9dc3e2ce09400148cb5 <fc646a6c6d14b5d581f162a7e32999f789e3a3ac

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.22; version=877907d37da9694a34adc9dc3e2ce09400148cb5 <029d8c711f5e5fe8cf63e8a4a1a140a06e224e45; version=877907d37da9694a34adc9dc3e2ce09400148cb5 <324f280806aab28ef757aecc18df419676c10ef8; version=877907d37da9694a34adc9dc3e2ce09400148cb5 <880e7b3da2e765c1f90c94c0539be039e96c7062; version=877907d37da9694a34adc9dc3e2ce09400148cb5 <903733782f3ae28a2f7fe4dfb47c7fe3e079a528; version=877907d37da9694a34adc9dc3e2ce09400148cb5 <c134deabf4784e155d360744d4a6a835b9de4dd4; version=877907d37da9694a34adc9dc3e2ce09400148cb5 <fc646a6c6d14b5d581f162a7e32999f789e3a3ac

Published CVSS scores

7.8Linux Kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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

T1068Exploitation for Privilege Escalation

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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