CVE-2022-50525

Service interruption via skipped PAMU probe cleanup

Published Oct 7, 2025 · Updated Oct 7, 2025

Resource leak in the FSL PAMU driver in the Linux kernel allows local users to interrupt service by triggering a failed device probe. On a create_csd() error, fsl_pamu_probe() returns directly instead of entering its cleanup path, leaving the allocated IRQ and memory unreleased. Exploitation requires local low-privileged access and a create_csd() failure during PAMU device probing; the documented consequence is availability loss only.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in the FSL PAMU driver in the Linux kernel allows local users to interrupt service by triggering a failed device probe. On a create_csd() error, fsl_pamu_probe() returns directly instead of entering its cleanup path, leaving the allocated IRQ and memory unreleased. Exploitation requires local low-privileged access and a create_csd() failure during PAMU device probing; the documented consequence is availability loss only.

The record

CVE
CVE-2022-50525
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 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?

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

  1. Affected versionversion=3.12
  2. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <0d240ac0e4c35d3f64fc782c11433138c1bd016e
  3. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <17fd440594961c5e2ea0f58591bc1bdba0629c75
  4. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <73f5fc5f884ad0c5f7d57f66303af64f9f002526
  5. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <9238b687fd62cde14c6e2e8576a40e4246de7ebe
  6. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <9fbccdf2fefa3944dd8ba8c6a808b387787f3917
  7. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <a305d0e4d0ce3166e31d7dbcb4c98b09cad6d49a
  8. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <c93983230562883e0b5f122040efbb3d478c36d4
  9. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <de7eb55009796687fc0a1670e0b944fa8ed54e9b
  10. Affected versionversion=695093e38c3ef63fcb43a2840ed865efa20671d5 <e42b543d08052c3b223bcfb48f05cbaf0b767f86

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.12; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <0d240ac0e4c35d3f64fc782c11433138c1bd016e; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <17fd440594961c5e2ea0f58591bc1bdba0629c75; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <73f5fc5f884ad0c5f7d57f66303af64f9f002526; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <9238b687fd62cde14c6e2e8576a40e4246de7ebe; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <9fbccdf2fefa3944dd8ba8c6a808b387787f3917; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <a305d0e4d0ce3166e31d7dbcb4c98b09cad6d49a; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <c93983230562883e0b5f122040efbb3d478c36d4; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <de7eb55009796687fc0a1670e0b944fa8ed54e9b; version=695093e38c3ef63fcb43a2840ed865efa20671d5 <e42b543d08052c3b223bcfb48f05cbaf0b767f86

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
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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