CVE-2022-50153

Local service interruption via device-tree reference leak

Published Jun 18, 2025 · Updated May 11, 2026

Resource leakage in the Linux kernel EHCI PowerPC Open Firmware probe path allows local users to exhaust resources and interrupt service. The ehci_hcd_ppc_of_probe function retains each device-tree node returned by of_find_compatible_node because it omits the matching of_node_put release. Reachability requires local low-privileged access and the affected PowerPC probe path; the published assessment reports no confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.18%
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 kernel EHCI PowerPC Open Firmware probe path allows local users to exhaust resources and interrupt service. The ehci_hcd_ppc_of_probe function retains each device-tree node returned by of_find_compatible_node because it omits the matching of_node_put release. Reachability requires local low-privileged access and the affected PowerPC probe path; the published assessment reports no confidentiality or integrity impact.

The record

CVE
CVE-2022-50153
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 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=2.6.29
  2. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <038453b17fe30ea38f0f3c916e2ae2b7f8cef84e
  3. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <3a50c917c67dd0bc39c14de4a8b75a1d50fdce66
  4. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <585d22a5624ef2b540c337665c72fea8cd33db50
  5. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <8cbc3870ff356366842af3228dd8e7bc278e5edd
  6. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <8e51a512c1079109bec4c80915e647692d583e79
  7. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <b5c5b13cb45e2c88181308186b0001992cb41954
  8. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <b9c4a480cb0ada07154debf681454cbb55e30b59
  9. Affected versionversion=796bcae7361c28cf825780f6f1aac9dd3411394e <c0a4b454486b23bb4d94ce49f490830ecc354040

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.29; version=796bcae7361c28cf825780f6f1aac9dd3411394e <038453b17fe30ea38f0f3c916e2ae2b7f8cef84e; version=796bcae7361c28cf825780f6f1aac9dd3411394e <3a50c917c67dd0bc39c14de4a8b75a1d50fdce66; version=796bcae7361c28cf825780f6f1aac9dd3411394e <585d22a5624ef2b540c337665c72fea8cd33db50; version=796bcae7361c28cf825780f6f1aac9dd3411394e <8cbc3870ff356366842af3228dd8e7bc278e5edd; version=796bcae7361c28cf825780f6f1aac9dd3411394e <8e51a512c1079109bec4c80915e647692d583e79; version=796bcae7361c28cf825780f6f1aac9dd3411394e <b5c5b13cb45e2c88181308186b0001992cb41954; version=796bcae7361c28cf825780f6f1aac9dd3411394e <b9c4a480cb0ada07154debf681454cbb55e30b59; version=796bcae7361c28cf825780f6f1aac9dd3411394e <c0a4b454486b23bb4d94ce49f490830ecc354040

Published CVSS scores

5.5NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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