CVE-2022-50121

Kernel resource exhaustion via device-node reference leak

Published Jun 18, 2025 · Updated May 11, 2026

Resource leak in the Linux kernel allows local users to exhaust kernel resources through K3 R5 remote-processor initialization. The k3_r5_cluster_of_init function exits a for_each_available_child_of_node loop early without calling of_node_put, retaining a device-tree node reference. Exploitation requires local low-privileged access and a system whose device tree activates the TI K3 R5 remoteproc driver; confidentiality and integrity are unaffected.

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 leak in the Linux kernel allows local users to exhaust kernel resources through K3 R5 remote-processor initialization. The k3_r5_cluster_of_init function exits a for_each_available_child_of_node loop early without calling of_node_put, retaining a device-tree node reference. Exploitation requires local low-privileged access and a system whose device tree activates the TI K3 R5 remoteproc driver; confidentiality and integrity are unaffected.

The record

CVE
CVE-2022-50121
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

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=5.10
  2. Affected versionversion=6dedbd1d544389d6ab1727423348572a11e9df5d <3f83c4cf1b78331c23876977aa7b9151aff2f9e1
  3. Affected versionversion=6dedbd1d544389d6ab1727423348572a11e9df5d <61cd8cd3b6b33c7eae3b45cf783b114f2ae53528
  4. Affected versionversion=6dedbd1d544389d6ab1727423348572a11e9df5d <75358732af9b26acfe3e609943290bcba13330fc
  5. Affected versionversion=6dedbd1d544389d6ab1727423348572a11e9df5d <cf112a52d758092ca3d5ebdad51dd17bda5ba3e5
  6. Affected versionversion=6dedbd1d544389d6ab1727423348572a11e9df5d <fa220c05d282e7479abe08b54e3bdffd06c25e97

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=6dedbd1d544389d6ab1727423348572a11e9df5d <3f83c4cf1b78331c23876977aa7b9151aff2f9e1; version=6dedbd1d544389d6ab1727423348572a11e9df5d <61cd8cd3b6b33c7eae3b45cf783b114f2ae53528; version=6dedbd1d544389d6ab1727423348572a11e9df5d <75358732af9b26acfe3e609943290bcba13330fc; version=6dedbd1d544389d6ab1727423348572a11e9df5d <cf112a52d758092ca3d5ebdad51dd17bda5ba3e5; version=6dedbd1d544389d6ab1727423348572a11e9df5d <fa220c05d282e7479abe08b54e3bdffd06c25e97

Published CVSS scores

5.5Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

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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