CVE-2022-50204

Local service interruption via device-node reference leak

Published Jun 18, 2025 · Updated May 11, 2026

Reference-count leak in Linux on ARM OMAP systems allows local users to interrupt service during clock initialization. In pdata_quirks_init_clocks(), a loop calls of_find_node_by_name() without releasing the returned device-node reference with of_node_put(), retaining a reference during clock setup. Reachability requires an affected ARM OMAP kernel and local access; published evidence identifies availability loss but no repeatable trigger or broader impact.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reference-count leak in Linux on ARM OMAP systems allows local users to interrupt service during clock initialization. In pdata_quirks_init_clocks(), a loop calls of_find_node_by_name() without releasing the returned device-node reference with of_node_put(), retaining a reference during clock setup. Reachability requires an affected ARM OMAP kernel and local access; published evidence identifies availability loss but no repeatable trigger or broader impact.

The record

CVE
CVE-2022-50204
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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=5.11
  2. Affected versionversion=ae5f70f707889dfd056905d9ea69e3f72dace213 <37f0c89778576ce3d52f40c1e9e727fbddedb28e
  3. Affected versionversion=ae5f70f707889dfd056905d9ea69e3f72dace213 <5cdbab96bab314c6f2f5e4e8b8a019181328bf5f
  4. Affected versionversion=ae5f70f707889dfd056905d9ea69e3f72dace213 <75f23d72b6e0a34c8a0e8d275b69ba1e6dd0f15f
  5. Affected versionversion=ae5f70f707889dfd056905d9ea69e3f72dace213 <ebca6870fc0cb5470dbc058cc94f3c53ea886eaa

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=ae5f70f707889dfd056905d9ea69e3f72dace213 <37f0c89778576ce3d52f40c1e9e727fbddedb28e; version=ae5f70f707889dfd056905d9ea69e3f72dace213 <5cdbab96bab314c6f2f5e4e8b8a019181328bf5f; version=ae5f70f707889dfd056905d9ea69e3f72dace213 <75f23d72b6e0a34c8a0e8d275b69ba1e6dd0f15f; version=ae5f70f707889dfd056905d9ea69e3f72dace213 <ebca6870fc0cb5470dbc058cc94f3c53ea886eaa

Published CVSS scores

5.5Canonical UbuntuCVSS: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

No sourced classifications are available.

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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