CVE-2022-49367

Kernel availability loss via device-node reference leak

Published Feb 26, 2025 · Updated May 11, 2026

Resource leak in the Linux kernel's mv88e6xxx driver allows local users to interrupt service through a failed MDIO bus registration. The mv88e6xxx_mdios_register error path returns after of_get_child_by_name increments the mdio device-node reference without calling of_node_put. Reachability requires low-privileged local access and a system using the Marvell mv88e6xxx DSA driver; published impact is limited to availability.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Resource leak in the Linux kernel's mv88e6xxx driver allows local users to interrupt service through a failed MDIO bus registration. The mv88e6xxx_mdios_register error path returns after of_get_child_by_name increments the mdio device-node reference without calling of_node_put. Reachability requires low-privileged local access and a system using the Marvell mv88e6xxx DSA driver; published impact is limited to availability.

The record

CVE
CVE-2022-49367
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 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=4.11
  2. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <02ded5a173619b11728b8bf75a3fd995a2c1ff28
  3. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <42658e47f1abbbe592007d3ba303de466114d0bb
  4. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <86c3c5f8e4bd1325e24f6fba9017cade29933377
  5. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <8a1a1255152da4fb934290e7ababc66f24985520
  6. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <a101793994c0a14c70bb4e44c7fda597eeebba0a
  7. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <c1df9cb756e5a9ba1841648c44ee5d92306b9c65
  8. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <dc1cf8c6f9793546696fded437a5b4c84944c48b
  9. Affected versionversion=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <e0d763d0c7665c7897e4f5a0847ab0c82543345f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.11; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <02ded5a173619b11728b8bf75a3fd995a2c1ff28; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <42658e47f1abbbe592007d3ba303de466114d0bb; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <86c3c5f8e4bd1325e24f6fba9017cade29933377; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <8a1a1255152da4fb934290e7ababc66f24985520; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <a101793994c0a14c70bb4e44c7fda597eeebba0a; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <c1df9cb756e5a9ba1841648c44ee5d92306b9c65; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <dc1cf8c6f9793546696fded437a5b4c84944c48b; version=a3c53be55c955b7150cda17874c3fcb4eeb97a89 <e0d763d0c7665c7897e4f5a0847ab0c82543345f

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS: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

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

See the directory against your own environment.

Your stack

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